CN110129706A - Contact temperature-measuring sensor and preparation method thereof and cooking equipment - Google Patents
Contact temperature-measuring sensor and preparation method thereof and cooking equipment Download PDFInfo
- Publication number
- CN110129706A CN110129706A CN201810112325.7A CN201810112325A CN110129706A CN 110129706 A CN110129706 A CN 110129706A CN 201810112325 A CN201810112325 A CN 201810112325A CN 110129706 A CN110129706 A CN 110129706A
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- China
- Prior art keywords
- electrode
- spraying
- measuring sensor
- contact temperature
- temperature
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- 238000002360 preparation method Methods 0.000 title claims abstract description 32
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/01—Selective coating, e.g. pattern coating, without pre-treatment of the material to be coated
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/08—Metallic material containing only metal elements
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/129—Flame spraying
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/131—Wire arc spraying
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Food Science & Technology (AREA)
- General Physics & Mathematics (AREA)
- Coating By Spraying Or Casting (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The present invention provides contact temperature-measuring sensor and preparation method thereof and cooking equipment, the preparation method of the contact temperature-measuring sensor includes: that the first thermoelectric material is sprayed on the first surface of substrate using heat spraying method, to form first electrode；Using heat spraying method, on the first surface by the spraying of the second thermoelectric material, to form second electrode；Wherein, there is at least one contact area, and the ingredient of the first thermoelectric material and the second thermoelectric material is different between second electrode and first electrode.The preparation method of the contact temperature-measuring sensor is simple, convenient, easy to accomplish, low to the control accuracy requirement of technological parameter, and feasibility is high, and good reliability is at low cost, high production efficiency, is easy to the production of actual industrial metaplasia.
Description
Technical field
The present invention relates to thermometry fields, specifically, being related to contact temperature-measuring sensor and preparation method thereof and culinary art
Equipment.
Background technique
On the one hand temperature transducer in cooking equipment at present can not precisely monitor the temperature of heated object, it is more difficult to realize
Accurate temperature control can only control heating schedule in a manner of fuzzy temperature control, be difficult to realize really intelligent culinary art, easily cause
The danger of burning, on the other hand, preparation cost are high, and process conditions are harsh, process is cumbersome, and production efficiency is low, poor reliability.
Thus, the relevant technologies of existing temperature transducer still have much room for improvement.
Summary of the invention
The present invention is the following discovery based on inventor and completes:
Contact temperature-measuring sensor is a kind of higher instrument of precision, is joined in the preparation to the ingredient of material, thickness etc.
Several requirements is very harsh, and the most common method for preparing contact temperature-measuring sensor has physical vaporous deposition and chemistry
Vapour deposition process.These methods are high to the control precision of ingredient, the thickness for preparing material etc., can satisfy contact temperature-measuring sensing
The preparation requirement of device, but cost is very high, production efficiency is extremely low, is unable to satisfy the mass production of high-volume, low cost completely
Preparation requires.Therefore, development cost is low and the preparation method of the contact temperature-measuring sensor of high production efficiency, be it is of crucial importance and
Urgent.
Thermal spraying be it is a kind of using heat source by powdered or Filamentous material be heated to melting or semi-molten state, then borrow
It helps flame itself or compressed air to be ejected into the surface of substrate with certain speed, deposits and form the coating with various functions
Technology is mainly used for spraying bearing etc. in anticorrosion, wear-resisting field to the lower large-sized structural parts of precision requirement.It grinds at present
Study carefully personnel and think that the coating precision of plasma spray technology preparation is not high always, is only applicable to large industrialized production, is not particularly suited for
For preparing the higher field of precision instruments of required precision, especially sensor field.There is presently no any researchers will
Plasma spray technology is applied to prepare the contact temperature-measuring sensor very harsh to material quality requirement.However, hair of the invention
Bright people on the basis of existing technology has made intensive studies plasma spray technology, beats after having carried out a large amount of accumulation and experiment
Broken general cognition of the those skilled in the art for plasma spray technology, inventors have found that plasma spray technology can satisfy for
Prepare the preparation requirement of the higher precision instrument of required precision.In view of this, the present invention provides a kind of simple, convenient,
Easy to accomplish, low to the control accuracy requirement of technological parameter, technological feasibility is high, and good reliability is at low cost, high production efficiency,
It is easy to the production of actual industrial metaplasia, and the contact temperature-measuring sensor prepared directly contacts testee, is led especially suitable for household electrical appliances
Domain, structure is simple, with short production cycle, and temperature measurement accuracy is high, high sensitivity, and thermal response speed is fast, it can be achieved that in real time, accurately surveying
Temperature, temperature controlling function, the preparation method of properties of product and the good contact temperature-measuring sensor of user experience.
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to propose that a kind of simple, convenient, easy to accomplish, low to the control accuracy requirement of technological parameter, technique can
Row height, good reliability, at low cost, high production efficiency or the contact temperature-measuring sensor for being easy to the production of actual industrial metaplasia
Preparation method.
In one aspect of the invention, the present invention provides a kind of preparation methods of contact temperature-measuring sensor.According to this
The embodiment of invention, this method comprises: the first thermoelectric material is sprayed on the first surface of substrate using heat spraying method,
To form first electrode；Using heat spraying method, on the first surface by the spraying of the second thermoelectric material, to form second electrode；
Wherein, there is at least one contact area, and the first thermoelectric material and the second thermoelectric material between second electrode and first electrode
Ingredient it is different.Inventors have found that this method is simple, convenient, and it is easy to accomplish, to the control accuracy requirement of technological parameter
Low, technological feasibility is high, and good reliability is at low cost, high production efficiency, is easy to the production of actual industrial metaplasia, and the contact prepared
Temperature transducer directly contacts testee, and especially suitable for field of household appliances, structure is simple, with short production cycle, and temperature measurement accuracy is high,
High sensitivity, thermal response speed are fast, it can be achieved that in real time, accurately thermometric, temperature controlling function, properties of product and user experience are good.
According to an embodiment of the invention, the heat spraying method includes electric arc spraying, flame-spraying and plasma spray coating
At least one of.
According to an embodiment of the invention, the carrier gas that the electric arc spraying uses is nitrogen or inert gas, and meet following
At least one: voltage 20-45V；Electric current is 50-400A；Spray distance is 50-400 millimeters；Spraying air pressure is more than or equal to
0.2MPa；Spray gun movement speed 50-2000mm/S.
According to an embodiment of the invention, first thermoelectric material and second thermoelectric material respectively with the first silk material and
The form of second silk material provides, and it is 1.0-2.5 millimeters that the diameter of first silk material and second silk material is independent.
According to an embodiment of the invention, before carrying out the thermal spraying, in advance by first silk material and described second
The oxidized portion on silk material surface removes.
According to an embodiment of the invention, the flame-spraying meets at least one of: substrate preheating temperature is greater than 40 DEG C；
Spray angle is 60-90 degree；Spray distance is 50-300mm；Oxygen pressure is more than or equal to 0.5MPa；Acetylene pressure is more than or equal to
0.1MPa；Spray gun movement speed is 50-1000mm/S；Powder sending quantity is 0.5-2.0Kg/h；Powder material partial size is 15-45 μm.
According to an embodiment of the invention, the plasma spray coating meets at least one of: electric current 300-700A；Electricity
Pressure is 30-100V；Argon flow is 30-70L/min；Hydrogen or helium gas flow are 4-25L/min；Powder feeding carrier gas flux is 3-
15L/min；Spray distance is 50-250mm；Spray gun movement speed is 50-1000mm/S；Powder feed rate is 5-50g/min.
According to an embodiment of the invention, it is 5- that the average thickness of the first electrode and the second electrode is independent
100 microns.
It is not more than according to an embodiment of the invention, the resistance of the first electrode and the second electrode is independent
1000 ohm.
According to an embodiment of the invention, the first electrode and the second electrode all have coarse surface.
According to an embodiment of the invention, the area of the contact area is 0.5-200 square millimeters.
According to an embodiment of the invention, the substrate includes ceramics, the metal of devitrified glass and surface Jing Guo insulation processing
One of.
According to an embodiment of the invention, metal of the surface Jing Guo insulation processing is through the following steps that preparation:
Buffer layer is formed on metallic matrix；Insulating coating is formed on the buffer layer, to form the substrate.
According to an embodiment of the invention, the material for forming the metallic matrix includes that aluminium alloy, titanium alloy and stainless steel close
At least one of gold.
According to an embodiment of the invention, first thermoelectric material includes platinum-rhodium alloy, nichrome, iron, copper, nickel chromium triangle silicon
At least one of alloy and tungsten-rhenium alloy；Second thermoelectric material include platinum-rhodium alloy, platinum, nickel silicon alloy, nickel alumin(i)um alloy,
At least one of nisiloy magnesium alloy and tungsten-rhenium alloy.
According to an embodiment of the invention, first thermoelectric material includes Pt90Rh10、Pt87Rh13、Pt70Rh30、
Ni90Cr10, iron, copper, Ni84.5Cr14Si1.5、W97Re3And W95Re5At least one of；Second thermoelectric material includes
Pt94Rh6, platinum, Ni97Si3、Ni97Al3、Cu55Ni45、Ni95.5Si4.5Mg1、W75Re25And W74Re26At least one of.
In another aspect of the invention, the present invention provides a kind of contact temperature-measuring sensors.Reality according to the present invention
Example is applied, which prepared by mentioned-above method.Inventors have found that the contact temperature-measuring senses
Device directly contacts testee, and especially suitable for field of household appliances, structure is simple, with short production cycle, and temperature measurement accuracy is high, sensitivity
Height, thermal response speed are fast, it can be achieved that in real time, accurately thermometric, temperature controlling function, properties of product and user experience are good.
In an additional aspect of the present invention, the present invention provides a kind of contact temperature-measuring sensors.Reality according to the present invention
Example is applied, which includes: substrate；First electrode and second electrode, the first electrode and second electricity
Pole is arranged on the first surface of the substrate, has at least one contact between the first electrode and the second electrode
Region, and the first electrode is different with the ingredient of the second electrode, the first electrode and the second electrode all have
Rough surface.Inventors have found that the contact temperature-measuring sensor directly contacts testee, especially suitable for field of household appliances, knot
Structure is simple, with short production cycle, and temperature measurement accuracy is high, high sensitivity, thermal response speed it is fast, it can be achieved that in real time, accurately thermometric, temperature control
Function, properties of product and user experience are good.
According to an embodiment of the invention, it is 5- that the average thickness of the first electrode and the second electrode is independent
100 microns.
In another aspect of the invention, the present invention provides a kind of cooking equipments.According to an embodiment of the invention, this is cooked
Equipment of preparing food includes mentioned-above contact temperature-measuring sensor.Inventors have found that the culinary art effect of the cooking equipment it is good, it can be achieved that
Really intelligent culinary art, and all feature and advantage with mentioned-above contact temperature-measuring sensor, herein not after
It repeats more.
According to an embodiment of the invention, the contact temperature-measuring sensor setting is direct with food in the cooking equipment
The side of contact.
According to an embodiment of the invention, further including protective layer, the protective layer covers the contact temperature-measuring sensor, and
It is directly contacted with the food.
According to an embodiment of the invention, the protective layer is teflon coatings or the non-sticky coating of ceramics.
According to an embodiment of the invention, the protective layer with a thickness of 10-100 microns.
Detailed description of the invention
Fig. 1 shows the flow diagram of the method for preparing contact temperature-measuring sensor of one embodiment of the invention.
Fig. 2 a to Fig. 2 c shows the process of the method for preparing contact temperature-measuring sensor of another embodiment of the present invention
Schematic diagram.
Fig. 3 shows the first mask plate of one embodiment of the invention and the photo in kind of the second mask plate.
Fig. 4 shows the flow diagram of the forming method of the substrate of one embodiment of the invention.
Fig. 5 a to Fig. 5 b shows the flow diagram of the forming method of the substrate of another embodiment of the present invention.
Fig. 6 a to Fig. 6 b shows the structural schematic diagram of the contact temperature-measuring sensor of one embodiment of the invention.
Fig. 7 shows the photo in kind of the contact temperature-measuring sensor of one embodiment of the invention.
Fig. 8 shows the schematic diagram of the section structure for testing the device of contact temperature-measuring sensor temperature measurement accuracy of the present invention.
Fig. 9 to Figure 13 shows the contact temperature-measuring sensor and standard temperature transducers of the embodiment of the present invention 1,2,7,8,12
- 300 DEG C of room temperature of temperature changing curve diagram of device.
Figure 14 shows the scanning electron micrograph of the contact temperature-measuring sensor section of one embodiment of the invention.
Appended drawing reference:
100: substrate 110: metallic matrix 120: buffer layer 130: insulating coating 200: 201: the first mask plate of first electrode
300: 301: the second mask plate 400 of second electrode: contact area 1000: potsherd 2000: heater 3000: thermal insulation material
4000: temperature sampler
Specific embodiment
The embodiment of the present invention is described below in detail.The embodiments described below is exemplary, and is only used for explaining this hair
It is bright, and be not considered as limiting the invention.Particular technique or condition are not specified in embodiment, according to text in the art
It offers described technology or conditions or is carried out according to product description.Reagents or instruments used without specified manufacturer,
For can be with conventional products that are commercially available.
In one aspect of the invention, the present invention provides a kind of preparation methods of contact temperature-measuring sensor.According to this
The embodiment of invention, a to Fig. 2 c referring to Figures 1 and 2, method includes the following steps:
S100: using heat spraying method, the first thermoelectric material be sprayed on the first surface of substrate 100, to form the
One electrode 200, (left side is the schematic diagram of the section structure to a to structural schematic diagram in fig. 2 a, and right side is plane in fig. 2 a referring to fig. 2
Structural schematic diagram)；
According to an embodiment of the invention, the specific material category of first thermoelectric material is not particularly limited, as long as full
Foot requires, and those skilled in the art can according to need carry out flexible choice, such as can include but is not limited to platinum-rhodium alloy, nickel
Evanohm, iron, copper, the alloy of nickel chromium triangle silicon and tungsten-rhenium alloy etc..In some embodiments of the invention, first thermoelectric material
Type can be specially Pt90Rh10、Pt87Rh13、Pt70Rh30、Ni90Cr10, iron, copper, Ni84.5Cr14Si1.5、W97Re3Or
W95Re5.Material source is extensive as a result, is easy to get, and can make the thermometric effect for preparing resulting contact temperature-measuring sensor
Good, stability and sensitivity are higher.
According to an embodiment of the invention, the offer form of first thermoelectric material is not particularly limited, wanted as long as meeting
It asks, those skilled in the art can according to need carry out flexible choice.In some embodiments of the invention, first thermoelectricity
Material is provided in the form of the first silk material.In other embodiments of the invention, first thermoelectric material is with alloy powder
Form provide.It is more suitable as a result, and carries out thermal spraying.
According to an embodiment of the invention, the specification of first silk material is not particularly limited, and as long as meeting the requirements, this field
Technical staff can according to need carry out flexible choice.In some embodiments of the invention, the diameter of first silk material can
Think 1.0-2.5 millimeters.In some embodiments of the invention, the diameter of first silk material can for 1.0 millimeters,
1.5 millimeters, 2.0 millimeters, 2.5 millimeters.The diameter of first silk material is moderate as a result, is more suitable and carries out thermal spraying treatment.
According to an embodiment of the invention, the partial size of the alloy powder is not particularly limited, and as long as meeting the requirements, this field
Technical staff can according to need carry out flexible choice.It should be noted that the partial size of alloy powder of the present invention is grain
The partial size of diameter distribution, the particle of the alloy powder is different, but all in this particle size distribution range.Of the invention some
In embodiment, the partial size of the alloy powder can be 15-45 μm.In some specific embodiments of the invention, the conjunction
The partial size of bronze material can be 20 μm -30 μm.The moderate in grain size of the alloy powder as a result, is more suitable and carries out at thermal spraying
Reason.
According to an embodiment of the invention, the specific method of the thermal spraying is not particularly limited, and as long as meeting the requirements, ability
Field technique personnel can according to need carry out flexible choice, for example including but be not limited to electric arc spraying, flame-spraying, and wait from
Son spraying etc..Simple, convenient as a result, easy to accomplish, low to the control accuracy requirement of technological parameter, feasibility is high, reliably
Property good, at low cost, high production efficiency, be easy to actual industrial metaplasia production, and prepare contact temperature-measuring sensor directly contact quilt
Object is surveyed, especially suitable for field of household appliances, structure is simple, and with short production cycle, temperature measurement accuracy is high, high sensitivity, thermal response speed
Fastly, it can be achieved that in real time, accurately thermometric, temperature controlling function, properties of product and user experience are good.
According to an embodiment of the invention, inventor has carried out a large amount of careful investigations and reality to the carrier gas of the electric arc spraying
Verifying, inventors have found that the carrier gas of the electric arc spraying is that nitrogen or inert gas (refer to rare gas, i.e. helium (He), neon
(Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn)), the first electrode in the arc spray process can be effectively prevented
200 are oxidized with second electrode 300 and lead to prepare that the temperature measurement accuracy of resulting contact temperature-measuring sensor is low, properties of product
Difference, inventors have found that do not use nitrogen or inert gas relative to carrier gas, the temperature measurement accuracy of the contact layer temperature transducer
It is remarkably improved.In some embodiments of the invention, the carrier gas of the electric arc spraying is nitrogen.Thus, it is possible to making
While stating the temperature measurement accuracy of contact temperature-measuring sensor and significantly improve, cost is relatively low.
According to an embodiment of the invention, inventor has carried out a large amount of careful investigations and reality to the voltage of the electric arc spraying
Verifying, inventors have found that the voltage of the electric arc spraying is 20-45V, it is in some embodiments of the invention, described
The voltage of electric arc spraying is specially 20V, 25V, 30V, 35V, 40V, 45V, can be further such that this method high reliablity, production
It is high-efficient, and prepare resulting contact temperature-measuring product sensor performance and user experience is good.Moreover, the electricity of the electric arc spraying
It is pressed in range noted earlier, it can be under the premise of guaranteeing to realize technical effect noted earlier, so that first thermoelectricity
Material spraying obtains more abundant, and the quality of the first electrode 200 of formation is higher, and more with the binding force of the substrate 100
It is good；Meanwhile the moderate temperature in the arc spray process is being carried out, more first thermoelectric materials are not had to be aoxidized,
The purity of the first electrode 200 formed is higher, and thermoelectricity capability is more excellent.
According to an embodiment of the invention, inventor has carried out a large amount of careful investigations and reality to the electric current of the electric arc spraying
Verifying, inventors have found that the electric current of the electric arc spraying is 50-400A, it is in some embodiments of the invention, described
The electric current of electric arc spraying is specially 50A, 100A, 150A, 200A, 250A, 300A, 350A, 400A, 450A, can further be made
This method high reliablity, high production efficiency, and prepare resulting contact temperature-measuring product sensor performance and user experience is good.
Moreover, the electric current of the electric arc spraying is in front in the range, it can be before guaranteeing to realize technical effect noted earlier
It puts, so that first thermoelectric material forms the more efficient of the first electrode 200；Meanwhile first electricity of formation
The homogeneity with higher of pole 200.
According to an embodiment of the invention, inventor (refers to spray gun gas outlet and substrate to the spray distance of the electric arc spraying
100 linear distance) carried out a large amount of careful investigations and experimental verification, inventors have found that the spraying of the electric arc spraying away from
From being 50-400 millimeters, in some embodiments of the invention, the spray distance of the electric arc spraying is specially 50 millimeters,
100 millimeters, 150 millimeters, 200 millimeters, 250 millimeters, 300 millimeters, 350 millimeters, 400 millimeters, 450 millimeters, can further make
This method high reliablity, high production efficiency, and prepare resulting contact temperature-measuring product sensor performance and user experience is good.
Moreover, the spray distance of the electric arc spraying in front in the range, can guarantee to realize technical effect noted earlier
Under the premise of so that the shape of the substrate 100 is more intact, before carrying out the electric arc spraying with institute after the electric arc spraying
The shape of substrate 100 is stated without significant change；Simultaneously, it is ensured that higher production efficiency, the first electrode 200 and the substrate
100 binding force is higher, does not have more first thermoelectric materials and aoxidizes, the purity of the first electrode 200 of formation
Higher, thermoelectricity capability is more excellent.
According to an embodiment of the invention, inventor has carried out a large amount of careful investigations to the spraying air pressure of the electric arc spraying
And experimental verification, inventors have found that the spraying air pressure of the electric arc spraying is more than or equal to 0.2MPa, of the invention some specific
In embodiment, the spraying air pressure of the electric arc spraying is specially 0.2MPa, 0.4MPa, 0.6MPa, 0.8MPa, 1MPa, 1.2MPa,
Can be with further such that this method high reliablity, high production efficiency, and prepare resulting contact temperature-measuring product sensor performance
And user experience is good.Moreover, can guarantee before realization in range described in the spraying air pressure of the electric arc spraying in front
Under the premise of the technical effect, so that the spouting velocity of the first thermoelectric material is higher when carrying out the electric arc spraying, formed
The first electrode 200 and the substrate 100 binding force it is more preferable.
According to an embodiment of the invention, inventor the spray gun movement speed of the electric arc spraying has been carried out it is a large amount of careful
Investigation and experimental verification, inventors have found that the spray gun movement speed of the electric arc spraying is 50-2000mm/S, of the invention
In some specific embodiments, the spray gun movement speed of the electric arc spraying be specially 50mm/S, 400mm/S, 800mm/S,
1200mm/S, 1600mm/S, 2000mm/S, can be with further such that this method high reliablity, high production efficiency, and prepares gained
Contact temperature-measuring product sensor performance and user experience it is good.Moreover, the spray gun movement speed of the electric arc spraying is in front
, can be under the premise of guaranteeing to realize technical effect noted earlier in the range, the thickness of the first electrode 200 of formation
Spend it is moderate, and guarantee have more excellent homogeneity and continuity.
According to an embodiment of the invention, the cost of the preparation method in order to make the contact temperature-measuring sensor is lower, production
It is more efficient, better reliability, and more excellent performance of contact temperature-measuring sensor can be obtained, inventor comprehensively considers
Carrier gas, voltage, electric current, spray distance, the spraying air pressure, spray gun movement speed of the electric arc spraying use, inventors have found that working as
The carrier gas that the electric arc spraying uses meets simultaneously for nitrogen or inert gas: voltage 20-45V；Electric current is 50-400A；
Spray distance is 50-400 millimeters；It sprays air pressure and is more than or equal to 0.2MPa；It is each when spray gun movement speed 50-2000mm/S
It influences each other between parameter, plays synergistic effect between each other, thus the preparation method of the contact temperature-measuring sensor can shorten
To within 2 minutes, hundreds of times are shortened compared with the existing technology, and cost is only 1/10th of the prior art, and prepares gained
Contact temperature-measuring sensor temperature measurement accuracy it is high, sensitivity is high, and thermal response speed is exceedingly fast, it can be achieved that in real time, accurately surveying
Temperature, temperature controlling function, properties of product and user experience are fabulous.
In other embodiments of the invention, the specific method of the thermal spraying is flame-spraying.Operation letter as a result,
Singly, conveniently, easy to accomplish, low to the control accuracy requirement of technological parameter, feasibility is high, and good reliability is at low cost, production efficiency
Height is easy to the production of actual industrial metaplasia, and the contact temperature-measuring sensor prepared directly contacts testee, especially suitable for household electrical appliances
Field, structure is simple, with short production cycle, and temperature measurement accuracy is high, high sensitivity, and thermal response speed is fast, it can be achieved that in real time, accurately surveying
Temperature, temperature controlling function, properties of product and user experience are good.
According to an embodiment of the invention, inventor the substrate preheating temperature of the flame-spraying has been carried out it is a large amount of careful
Investigation and experimental verification, inventors have found that the substrate preheating temperature of the flame-spraying is greater than 40 DEG C, in some tools of the invention
In body embodiment, the substrate preheating temperature of the flame-spraying is specially 50 DEG C, 60 DEG C, 70 DEG C, 80 DEG C, 90 DEG C, 100 DEG C, can
With further such that this method high reliablity, high production efficiency, and prepare resulting contact temperature-measuring product sensor performance and
User experience is good.Moreover, the substrate preheating temperature of the flame-spraying is in front in the range, it can be before guaranteeing to realize
Under the premise of technical effect described in face, forms the first electrode 200 and the binding force of the substrate 100 is more preferable.
According to an embodiment of the invention, spray angle (spraying direction and substrate 100 of the inventor to the flame-spraying
Angle) a large amount of careful investigations and experimental verification have been carried out, inventors have found that the spray angle of the flame-spraying is 60-90
Degree, in some embodiments of the invention, the spray angle of the flame-spraying is specially 60 degree, 70 degree, 80 degree, 90
Degree, can be with further such that this method high reliablity, high production efficiency, and prepares resulting contact temperature-measuring product sensor
Energy and user experience are good.Moreover, the spray angle of the flame-spraying is in front in the range, it can be before guaranteeing to realize
Under the premise of technical effect described in face, so that be substantially not in shadow effect when carrying out the flame-spraying, formation
The consistency of the first electrode 200 is higher.
According to an embodiment of the invention, inventor has carried out a large amount of careful investigations to the spray distance of the flame-spraying
And experimental verification, inventors have found that the spray distance of the flame-spraying is 50-300mm, in some specific implementations of the invention
In example, the spray distance of the flame-spraying is specially 50mm, 100mm, 150mm, 200mm, 250mm, 300mm, can be into one
Step prepares resulting contact temperature-measuring product sensor performance and user's body so that this method high reliablity, high production efficiency
It tests.Moreover, the spray distance of the flame-spraying in front in the range, can guarantee to realize technology noted earlier
Under the premise of effect so that the shape of the substrate 100 is more intact, before carrying out the flame-spraying with the flame-spraying
The shape of the substrate 100 is without significant change afterwards；Simultaneously, it is ensured that higher production efficiency, the first electrode 200 with it is described
The binding force of substrate 100 is higher, does not have more first thermoelectric materials and aoxidizes, the first electrode 200 of formation
Purity is higher, and thermoelectricity capability is more excellent.
According to an embodiment of the invention, inventor has carried out a large amount of careful investigations to the oxygen pressure of the flame-spraying
And experimental verification, inventors have found that the oxygen pressure of the flame-spraying is more than or equal to 0.5MPa, of the invention some specific
In embodiment, the oxygen pressure of the flame-spraying is specially 0.5MPa, 0.7MPa, 0.9MPa, 1.1MPa, 1.3MPa, can be with
Further such that this method high reliablity, high production efficiency, and prepare resulting contact temperature-measuring product sensor performance and use
It experiences at family.Moreover, the oxygen pressure of the flame-spraying is in front in the range, can guarantee to realize it is noted earlier
Under the premise of technical effect, forms the first electrode 200 and the binding force of the substrate 100 is more preferable.
According to an embodiment of the invention, inventor has carried out a large amount of careful investigations to the acetylene pressure of the flame-spraying
And experimental verification, inventors have found that the acetylene pressure of the flame-spraying is more than or equal to 0.1MPa, of the invention some specific
In embodiment, the acetylene pressure of the flame-spraying be specially 0.1MPa, 0.3MPa, 0.5MPa, 0.7MPa, 0.9MPa,
1.1MPa, 1.3MPa, can be with further such that this method high reliablity, high production efficiency, and prepares resulting contact temperature-measuring
Product sensor performance and user experience are good.It, can be with moreover, the acetylene pressure of the flame-spraying is in front in the range
Under the premise of guaranteeing to realize technical effect noted earlier, the binding force of the first electrode 200 and the substrate 100 is formed more
It is good.
According to an embodiment of the invention, inventor the spray gun movement speed of the flame-spraying has been carried out it is a large amount of careful
Investigation and experimental verification, inventors have found that the spray gun movement speed of the flame-spraying is 50-1000mm/S, of the invention
In some specific embodiments, the spray gun movement speed of the flame-spraying be specially 50mm/S, 100mm/S, 200mm/S,
400mm/S, 600mm/S, 800mm/S, 1000mm/S, can be with further such that this method high reliablity, high production efficiency, and makes
Standby resulting contact temperature-measuring product sensor performance and user experience are good.Moreover, the spray gun movement speed of the flame-spraying
, can be under the premise of guaranteeing to realize technical effect noted earlier in front in the range, the first electrode of formation
200 thickness is moderate, and guarantees there is more excellent homogeneity and continuity.
According to an embodiment of the invention, inventor (consumes alloy to the powder feeding rate of the flame-spraying in the unit time
The quality of powder) a large amount of careful investigations and experimental verification have been carried out, inventors have found that the powder feeding rate of the flame-spraying is
0.5-2.0Kg/h, in some embodiments of the invention, the powder feeding rate of the flame-spraying be specially 0.5Kg/h,
0.6Kg/h, 0.7Kg/h, 0.8Kg/h, 0.9Kg/h, 1.0Kg/h, 1.5Kg/h, 2.0Kg/h, can be further such that this method
High reliablity, high production efficiency, and prepare resulting contact temperature-measuring product sensor performance and user experience is good.Moreover, institute
The powder feeding rate of flame-spraying is stated in front in the range, it can be in the premise for guaranteeing to realize technical effect noted earlier
Under, the more efficient of the first electrode 200 is formed, the thickness of the first electrode 200 is more uniform, while can guarantee described
The equipment of flame-spraying is not susceptible to block.
According to an embodiment of the invention, inventor is to the powder material partial size of the flame-spraying (it should be noted that powder herein
Material partial size refers to the partial size of alloy powder herein) a large amount of careful investigations and experimental verification have been carried out, inventors have found that described
The powder material partial size of flame-spraying is 15-45 μm, in some embodiments of the invention, the powder material partial size of the flame-spraying
It is 20 μm -30 μm, can be with further such that this method high reliablity, high production efficiency, and prepare resulting contact temperature-measuring and pass
Sensor properties of product and user experience are good.Moreover, the powder material partial size of the flame-spraying is in front in the range, Ke Yi
Guarantee under the premise of realizing technical effect noted earlier, do not have more first thermoelectric materials and aoxidize, formation it is described
The purity of first electrode 200 is higher, and thermoelectricity capability is more excellent；And first thermoelectric material is made to spray more abundant,
The quality of the first electrode 200 formed is higher and more preferable with the binding force of the substrate 100.
According to an embodiment of the invention, the cost of the preparation method in order to make the contact temperature-measuring sensor is lower, production
It is more efficient, better reliability, and more excellent performance of contact temperature-measuring sensor can be obtained, inventor comprehensively considers
Substrate preheating temperature, spray angle, spray distance, oxygen pressure, acetylene pressure, the mobile speed of spray gun of the flame-spraying use
Degree, powder sending quantity, powder material partial size, inventors have found that the substrate preheating temperature when the flame-spraying is greater than 40 DEG C, and full simultaneously
Foot: spray angle is 60-90 degree；Spray distance is 50-300mm；Oxygen pressure is more than or equal to 0.5MPa；Acetylene pressure be greater than etc.
In 0.1MPa；Spray gun movement speed is 50-1000mm/s；Powder sending quantity is 0.5-2.0Kg/h；When powder material partial size is 15-45 μm,
It influences each other between parameters, plays synergistic effect between each other, thus the preparation method of the contact temperature-measuring sensor can be with
It greatly shortens, cost is greatly reduced, and prepares resulting contact temperature-measuring sensor temperature measurement accuracy height, and high sensitivity, heat is rung
Answer speed fast, it can be achieved that in real time, accurately thermometric, temperature controlling function, properties of product and user experience are good.
In other embodiment of the invention, the specific method of the thermal spraying is plasma spraying.Operation letter as a result,
Singly, conveniently, easy to accomplish, low to the control accuracy requirement of technological parameter, feasibility is high, and good reliability is at low cost, production efficiency
Height is easy to the production of actual industrial metaplasia, and the contact temperature-measuring sensor prepared directly contacts testee, especially suitable for household electrical appliances
Field, structure is simple, with short production cycle, and temperature measurement accuracy is high, high sensitivity, and thermal response speed is fast, it can be achieved that in real time, accurately surveying
Temperature, temperature controlling function, properties of product and user experience are good.
According to an embodiment of the invention, inventor to the electric current of the plasma spraying carried out a large amount of careful investigations and
Experimental verification, inventors have found that the electric current of the plasma spraying is 300-700A, in some specific embodiments of the present invention
In, the electric current of the plasma spraying is specially 300A, 400A, 500A, 600A, 700A, can be further such that this method can
The high, high production efficiency by property, and prepare resulting contact temperature-measuring product sensor performance and user experience is good.Moreover, described
The electric current of plasma spraying in the range, can make under the premise of guaranteeing to realize technical effect noted earlier in front
It obtains first thermoelectric material and forms the more efficient of the first electrode 200；Meanwhile the first electrode 200 of formation has
There is higher homogeneity.
According to an embodiment of the invention, inventor to the voltage of the plasma spraying carried out a large amount of careful investigations and
Experimental verification, inventors have found that the voltage of the plasma spraying is 30-100V, in some embodiments of the invention,
The voltage of the plasma spraying is specially 30V, 50V, 70V, 90V, 100V, can with further such that this method high reliablity,
High production efficiency, and prepare resulting contact temperature-measuring product sensor performance and user experience is good.Moreover, the plasma spray
The voltage of painting is in front in the range, can be under the premise of guaranteeing to realize technical effect noted earlier, so that described the
One thermoelectric material sprays more abundant, and the quality of the first electrode 200 of formation is higher, and the knot with the substrate 100
Resultant force is more preferable；Meanwhile the moderate temperature in the arc spray process is being carried out, more first thermoelectric materials are not had to be occurred
Oxidation, the purity of the first electrode 200 of formation is higher, and thermoelectricity capability is more excellent.
According to an embodiment of the invention, inventor has carried out a large amount of careful examine to the argon flow of the plasma spraying
It examines and experimental verification, inventors have found that the argon flow of the plasma spraying is 30-70L/min, in some tools of the invention
In body embodiment, the argon flow of the plasma spraying is specially 30L/min, 40L/min, 50L/min, 60L/min, 70L/
Min, can be with further such that this method high reliablity, high production efficiency, and prepares resulting contact temperature-measuring product sensor
Performance and user experience are good.Moreover, the argon flow of the plasma spraying is in front in the range, can guarantee it is real
Under the premise of existing technical effect noted earlier, plasma gas is sufficient, and first thermoelectric material sprays more abundant, and
Efficiency is higher, low energy consumption, and the quality for forming the first electrode 200 is more excellent, and performance is more preferable.
According to an embodiment of the invention, inventor has carried out a large amount of weeks to the hydrogen or helium gas flow of the plasma spraying
Close investigation and experimental verification, inventors have found that the hydrogen or helium gas flow of the plasma spraying are 4-25L/min, at this
Invention some specific embodiments in, the hydrogen or helium gas flow of the plasma spraying be specially 4L/min, 10L/min,
15L/min, 20L/min, 25L/min, can be with further such that this method high reliablity, high production efficiency, and prepares resulting
Contact temperature-measuring product sensor performance and user experience are good.Moreover, the hydrogen or helium gas flow of the plasma spraying are preceding
, can be under the premise of guaranteeing to realize technical effect noted earlier in range described in face, production efficiency is higher and can make
It will not be aoxidized on the first thermoelectric material substrate, the better quality of the first electrode 200 of formation, performance is more preferably.
According to an embodiment of the invention, inventor is to the powder feeding carrier gas flux of the plasma spraying (for conveying alloy
The gas flow of powder, usually nitrogen) carried out a large amount of careful investigations and experimental verification, inventors have found that it is described it is equal from
The powder feeding carrier gas flux of son spraying is 3-15L/min, and in some embodiments of the invention, the plasma spraying is sent
Powder carrier gas flux is specially 3L/min, 6L/min, 9L/min, 12L/min, 15L/min, can be further such that this method is reliable
Property high, high production efficiency, and prepare resulting contact temperature-measuring product sensor performance and user experience is good.Moreover, described etc.
The powder feeding carrier gas flux of plasma spray is in front in the range, can be in the premise for guaranteeing to realize technical effect noted earlier
Under, effectively the first thermoelectric material can be sent into the equipment of plasma spraying, be not easy to result in blockage, and spray efficiency is higher,
It will not influence the plasma degree of equipment.
According to an embodiment of the invention, inventor has carried out a large amount of careful examine to the spray distance of the plasma spraying
It examines and experimental verification, inventors have found that the spray distance of the plasma spraying is 50-250mm, of the invention some specific
In embodiment, the spray distance of the plasma spraying is specially 50mm, 100mm, 150mm, 200mm, 250mm, can be into one
Step prepares resulting contact temperature-measuring product sensor performance and user's body so that this method high reliablity, high production efficiency
It tests.Moreover, the spray distance of the plasma spraying in front in the range, can guarantee to realize skill noted earlier
Under the premise of art effect, so that the shape of the substrate 100 is more intact, sprayed before carrying out the flame-spraying with the flame
The shape of the substrate 100 is without significant change after painting；Simultaneously, it is ensured that higher production efficiency, the first electrode 200 and institute
The binding force for stating substrate 100 is higher, does not have more first thermoelectric materials and aoxidizes, the first electrode 200 of formation
Purity it is higher, thermoelectricity capability is more excellent.
According to an embodiment of the invention, inventor has carried out largely carefully the spray gun movement speed of the plasma spraying
Investigation and experimental verification, inventors have found that the spray gun movement speed of the plasma spraying be 50-1000mm/S, in this hair
In bright some specific embodiments, the spray gun movement speed of the plasma spraying is specially 50mm/S, 100mm/S, 200mm/
S, 400mm/S, 600mm/S, 800mm/S, 1000mm/S, can with further such that this method high reliablity, high production efficiency, and
It prepares resulting contact temperature-measuring product sensor performance and user experience is good.Moreover, the spray gun of the plasma spraying is mobile
Speed is in front in the range, can under the premise of guaranteeing to realize technical effect noted earlier, described the first of formation
The thickness of electrode 200 is moderate, and guarantees there is more excellent homogeneity and continuity.
According to an embodiment of the invention, inventor (consumes the powder feeding rate of the plasma spraying in the unit time
The quality of alloy powder) a large amount of careful investigations and experimental verification have been carried out, inventors have found that the powder feeding of the plasma spraying
Rate is 5-50g/min, and in some embodiments of the invention, the powder feeding rate of the plasma spraying is specially 5g/
Min, 10g/min, 20g/min, 30g/min, 40g/min, 50g/min, can be further such that this method high reliablity, production
It is high-efficient, and prepare resulting contact temperature-measuring product sensor performance and user experience is good.Moreover, the plasma spraying
Powder feeding rate is in front in the range, can form described the under the premise of guaranteeing to realize technical effect noted earlier
One electrode 200 it is more efficient, the thickness of the first electrode 200 is more uniform, while can guarantee setting for the flame-spraying
It is standby to be not susceptible to block.
According to an embodiment of the invention, the cost of the preparation method in order to make the contact temperature-measuring sensor is lower, production
It is more efficient, better reliability, and more excellent performance of contact temperature-measuring sensor can be obtained, inventor comprehensively considers
Electric current, voltage, argon flow, hydrogen or helium gas flow that the plasma spraying uses, powder feeding carrier gas flux, spray distance,
Spray gun movement speed, powder feed rate inventors have found that the electric current when the plasma spraying is 300-700A, and meet simultaneously:
Voltage is 30-100V；Argon flow is 30-70L/min；Hydrogen or helium gas flow are 4-25L/min；Powder feeding carrier gas flux is 3-
15L/min；Spray distance is 50-250mm；Spray gun movement speed is 50-1000mm/s；When powder feed rate is 5-50g/min,
It influences each other between parameters, plays synergistic effect between each other, thus the preparation method of the contact temperature-measuring sensor can be with
It greatly shortens, cost is greatly reduced, and prepares resulting contact temperature-measuring sensor temperature measurement accuracy height, and high sensitivity, heat is rung
Answer speed fast, it can be achieved that in real time, accurately thermometric, temperature controlling function, properties of product and user experience are good.
Described first is formed according to an embodiment of the invention, first thermoelectric material is sprayed on the substrate 100
The concrete mode of electrode 200 is not particularly limited, as long as meeting the requirements, it is flexible that those skilled in the art can according to need progress
Selection.In some embodiments of the invention, it can be covered using the first mask plate 201 (structural schematic diagram is referring to Fig. 3)
The substrate 100, is then sprayed, and the hollow-out part of first mask plate 201 forms the first electrode 200.
In some specific embodiments of the invention, before carrying out the thermal spraying, in advance by first silk material
The oxidized portion on surface removes.Thus, it is possible to guarantee that first thermoelectric material removes its table before carrying out the thermal spraying
The impurity in face, so that spraying effect is more preferably.
According to an embodiment of the invention, the specific method for removing the oxidized portion is not particularly limited, wanted as long as meeting
It asks, those skilled in the art can according to need carry out flexible choice, such as can include but is not limited to polishing, blasting treatment
Deng.In some embodiments of the invention, the specific method for removing the oxidized portion can be blasting treatment.Thus, it is possible to
It is completely that the surface treatment of first silk material and second silk material is clean and simple, convenient, it is easy to industrial metaplasia
It produces.
According to an embodiment of the invention, the specific type of sand used by the blasting treatment is not particularly limited, as long as
It meets the requirements, those skilled in the art can according to need carry out flexible choice, such as can include but is not limited to quartz sand, palm fibre
Corundum, iron sand, white fused alumina etc..In some embodiments of the invention, the specific type of sand used by the blasting treatment can
Think Brown Alundum or white fused alumina.Thus, it is possible to make sandblasting effect preferable.
According to an embodiment of the invention, the granularity of sand used by the blasting treatment is not particularly limited, as long as meeting
It is required that those skilled in the art can according to need carry out flexible choice.In some embodiments of the invention, at the sandblasting
The granularity of sand used by managing can be 20-800 mesh.In some more preferred embodiments of the invention, at the sandblasting
The granularity of sand used by reason can be 40-120 mesh.In some embodiments of the invention, the blasting treatment institute
The granularity of the sand used can be 40 mesh, 60 mesh, 80 mesh, 100 mesh, 120 mesh.Thus, it is possible to guaranteeing at described first
In the case that material and the second silk material surface polishing scratch do not occur, to the maximum extent by first silk material and second silk material surface
Oxidized portion processing it is clean.If the granularity of sand used by the blasting treatment is too low, it is difficult to first silk material
It is clean with the oxidized portion processing on second silk material surface, if the granularity of sand used by the blasting treatment is excessively high, easily
Polishing scratch is left in first silk material and the second silk material surface.
According to an embodiment of the invention, the shape of the first electrode 200 is not particularly limited, as long as meeting the requirements, this
Field technical staff can according to need carry out flexible choice.In some embodiments of the invention, the first electrode
200 shape can be bar shaped.
According to an embodiment of the invention, the thickness of the first electrode 200 is not particularly limited, as long as meeting the requirements, this
Field technical staff can according to need carry out flexible choice.In some embodiments of the invention, the first electrode 200
Average thickness can be 5-100 microns.In some more preferred embodiments of the invention, the first electrode 200 is put down
Equal thickness can be 10-60 microns.In some embodiments of the invention, the average thickness of the first electrode 200 can
Think 10 microns, 20 microns, 30 microns, 40 microns, 50 microns, 60 microns.Resulting contact temperature-measuring sensor is prepared as a result,
Thermometric effect it is good so that the first electrode 200 simultaneously there is higher reliability and better wear-resisting property, homogeneity is more
It is good and visually more beautiful.
According to an embodiment of the invention, the resistance of the first electrode 200 is not particularly limited, as long as meeting the requirements, this
Field technical staff can according to need carry out flexible choice.In some embodiments of the invention, the first electrode 200
Resistance is not more than 1000 ohm.In some embodiments of the invention, the resistance of the first electrode 200 can be 100
Ohm, 200 ohm, 400 ohm, 600 ohm, 800 ohm, 1000 ohm.Good conductivity as a result, can make preparation gained
Contact temperature-measuring sensor high sensitivity, thermometric effect is good, thermal response speed it is fast, it can be achieved that in real time, accurately thermometric, control
Temperature function.
According to an embodiment of the invention, the first electrode 200 has coarse surface.It should be noted that of the invention
The coarse surface should be the coarse surface that naked eyes can distinguish.In some embodiments of the invention, described first
The surface roughness of electrode 200 is greater than 1 micron.Low to the control accuracy requirement of technological parameter as a result, technological feasibility is high, can
Good by property, at low cost, high production efficiency is easy to the production of actual industrial metaplasia, and the contact temperature-measuring sensor prepared is particularly suitable
In field of household appliances, structure is simple, with short production cycle, and temperature measurement accuracy is high, high sensitivity, and thermal response speed is fast, it can be achieved that real-time, essence
Thermometric, the temperature controlling function of standard, properties of product and user experience are good.
According to an embodiment of the invention, the specific material category of the substrate 100 especially limits, as long as meeting the requirements, this
Field technical staff can according to need carry out flexible choice, such as can include but is not limited to ceramics, devitrified glass, Yi Jibiao
Treated metal in face etc..In some embodiments of the invention, the specific material category of the substrate 100 can be surface
By the metal of insulation processing.Material source is extensive as a result, is easy to get, and cost is relatively low, and utilizes the processed metal of surface insulation
As substrate 100, can make the thermometric effect for preparing resulting contact temperature-measuring sensor is good, stability is high, with described the
One electrode 200 and the adaptability of second electrode 300 are good.
According to an embodiment of the invention, referring to Fig. 4 and Fig. 5 a to Fig. 5 b, the shape of metal of the surface Jing Guo insulation processing
At method the following steps are included:
S10: buffer layer 120 is formed on metallic matrix 110, structural schematic diagram is referring to Fig. 5 a.
According to an embodiment of the invention, the specific material category of the metallic matrix 110 is not particularly limited, as long as meeting
It is required that those skilled in the art can according to need carry out flexible choice, such as it can include but is not limited to aluminium alloy, titanium conjunction
Gold and stainless steel alloy etc..In some embodiments of the invention, the material category of the metallic matrix 110 can be with
Specially anti-bacteria stainless steel alloy, 300 be stainless steel, 400 be stainless steel, pack alloy, spinning aluminium alloy, 5 line aluminium alloys
Deng.Material source is extensive as a result, is easy to get, and cost is relatively low, and conducive to the first electrode 200 and second electrode 300 sprayed
Molding.
According to an embodiment of the invention, the specific method for forming buffer layer 120 is not particularly limited, wanted as long as meeting
Ask, those skilled in the art can according to need carry out flexible choice, for example including but be not limited to 110 table of metallic matrix
Face carries out oxidation processes, carries out thermal spraying etc. on 110 surface of metallic matrix.
According to an embodiment of the invention, the specific method of the oxidation processes is not particularly limited, as long as meeting the requirements, this
Field technical staff can according to need carry out flexible choice, such as can include but is not limited to anodized and differential of the arc oxygen
Change etc..In some embodiments of the invention, the specific method of the oxidation processes can be anodized, described in progress
When anodized, used electrolyte includes: 100~220g/L sulfuric acid, 5~15g/L oxalic acid, 2~16g/L the third three
Alcohol, 2~5g/L additive；Electrolyte temperature be 3~10 degrees Celsius, the reaction time be 30~120 minutes, voltage range be 12~
18 volts.It is simple, convenient as a result, it is easy to accomplish, it is easy to industrialized production, and electrolyte is easy to get, electrolytic condition is mild,
It is good to prepare resulting 100 stability of substrate.
In other embodiments of the invention, the specific method of the oxidation processes can be differential arc oxidation, carry out institute
When stating micro-arc oxidation treatment, used electrolyte includes: 1~20g/L sodium phosphate, 4~35g/L sodium metasilicate, 4~10g/L silicon
Sour potassium, 1~20g/L sodium hydroxide, 0.5~4g/L glycerine, 0~3g/L boric acid, 1~5g/L nano aluminium oxide and 1~5g/L
Silicon carbide；Electrolyte temperature is 3~50 degrees Celsius, and the reaction time is 30~120 minutes, and voltage range is 400~550 volts.
It is simple, convenient as a result, it is easy to accomplish, it is easy to industrialized production, and electrolyte is easy to get, and prepares resulting substrate 100 and stablizes
Property is good.
According to an embodiment of the invention, carrying out thermal spraying on 110 surface of metallic matrix can be specially thermal spraying nickel
Powder.Thus, it is possible to prepare resulting 100 stability of substrate it is good.
According to an embodiment of the invention, the thickness of the buffer layer 120 is not particularly limited, and as long as meeting the requirements, ability
Field technique personnel can according to need carry out flexible choice.In some implementations of the invention, the thickness of the buffer layer 120 can
Think 10-80 microns.In some specific embodiments of the present invention, the buffer layer 120 with a thickness of 10 microns, 20 microns,
40 microns, 60 microns, 80 microns.Thus, it is possible to prepare, resulting 100 stability of substrate is good, and the buffer layer 120
Thickness in the range, can make spraying effect more preferably in front.
S20: forming insulating coating 130 on the buffer layer 120, to form the substrate 100, structural schematic diagram ginseng
See Fig. 5 b.
According to an embodiment of the invention, the specific material category of the insulating coating 130 is not particularly limited, as long as meeting
It is required that those skilled in the art can according to need carry out flexible choice, for example including but be not limited to inorganic silica gel, potassium silicate,
Sodium metasilicate, lithium metasilicate, zirconium oxide, titanium dioxide and aluminium oxide etc..In some embodiments of the invention, the insulation
The specific material category of coating can be the mixture for including aluminium oxide and titanium dioxide, wherein be based on aluminium oxide and titanium dioxide
The gross mass of titanium, the content of aluminium oxide are >=87wt%.The insulation performance for preparing resulting substrate 100 as a result, is more preferable, and material
It is from a wealth of sources, be easy to get, cost is relatively low.
According to an embodiment of the invention, the thickness of the insulating coating 130 is not particularly limited, as long as meeting the requirements, this
Field technical staff can according to need carry out flexible choice.In some embodiments of the invention, the insulating coating 130
Thickness can be 1-500 microns.In some more preferred embodiments of the invention, the thickness of the insulating coating 130 can
Think 50-200 microns.In some specific embodiments of the present invention, the thickness of the insulating coating 130 can for 50 microns,
100 microns, 150 microns, 200 microns.Thus, it is possible to guaranteeing what the insulation performance for preparing resulting substrate 100 was met the requirements
Under the premise of, material therefor, save the cost are reduced to the maximum extent.
According to an embodiment of the invention, the insulating coating 130 has hole, the hole above the insulating coating 130 above
Aperture should be not more than 10 nanometers, porosity 0-15%.In some specific embodiments of the present invention, the aperture is 2
Nanometer, 4 nanometers, 6 nanometers, 8 nanometers, 10 nanometers.Thus, it is possible to guarantee that preparing resulting substrate 100 is spraying first electricity
Good insulating properties has can still be maintained in it after pole 200 and second electrode 300, prevents the contact temperature-measuring sensor from existing
Short circuit occurs in use process.
According to an embodiment of the invention, the specific method for forming the insulating coating 130 is not particularly limited, as long as meeting
It is required that those skilled in the art can according to need carry out flexible choice.In some embodiments of the invention, it is formed described exhausted
The method of edge coating 130 can be to pass through setting insulating materials and drying or plasma spray coating on the buffer layer 120.
It is simple, convenient as a result, it is easy to accomplish, it is easy to industrialized production.
According to an embodiment of the invention, the specific method of insulating materials that is arranged on the buffer layer 120 is not by spy
Do not limit, as long as meeting the requirements, those skilled in the art can according to need carry out flexible choice, for example including but be not limited to roll
Painting, spin coating, electrostatic spraying etc..In some embodiments of the invention, described that the specific of insulating materials is set on buffer layer 120
Method can be electrostatic spraying.It is simple, convenient as a result, it is easy to accomplish, it is easy to industrialized production, and prepare resulting exhausted
130 stability of edge coating is good, not easily to fall off.
According to an embodiment of the invention, the concrete technology condition of the drying is not particularly limited, as long as meeting the requirements, this
Field technical staff can according to need carry out flexible choice.In some embodiments of the invention, the drying is dry for vacuum
Dry, drying temperature is 200~600 degrees Celsius, and drying time is 10~60 minutes, pressure 0.1-50kPa.Operation letter as a result,
It is single, conveniently, it is easy to accomplish, it is easy to industrialized production, and it is good to prepare resulting 130 stability of insulating coating, it is not easily to fall off.
In other embodiments of the invention, after forming the insulating coating 130, insulating coating 130 can and table
It interpenetrates to form the buffer layer 120 between the metallic matrix 110 of face sandblasting.As a result, the metallic matrix 110 with it is described
Binding force between insulating coating 130 is more preferable.
S200: using heat spraying method, on the first surface by the spraying of the second thermoelectric material, to form second electrode 300；
Wherein, there is at least one contact area 400, and the first thermoelectric material and second between second electrode 300 and first electrode 200
The ingredient of thermoelectric material is different.
According to an embodiment of the invention, the specific material category of second thermoelectric material should be with the first thermoelectricity material
The specific ingredient of material is different, such as can include but is not limited to platinum-rhodium alloy, platinum, nickel silicon alloy, nickel alumin(i)um alloy, nisiloy magnesium alloy
With tungsten-rhenium alloy etc..In some embodiments of the invention, the type of second thermoelectric material is specifically as follows Pt94Rh6、
Platinum, Ni97Si3、Ni97Al3、Cu55Ni45、Ni95.5Si4.5Mg1、W75Re25And W74Re26.Material source is extensive as a result, is easy to get, and
The good thermometric effect for preparing resulting contact temperature-measuring sensor, stability and sensitivity can be made higher.
As long as according to an embodiment of the invention, first thermoelectric material and the second thermoelectric material are in above-mentioned material
One kind, a combination thereof is not particularly restricted.Mentioned-above first thermoelectric material and the second thermoelectric material can be certainly
By combining.For example, in some specific embodiments of the invention, Ni90Cr10As the first thermoelectric material, Ni97Si3As
Two thermoelectric materials respectively constitute the first electrode 200 and second electrode 300.Resulting contact temperature-measuring sensing is prepared as a result,
The thermometric effect of device is preferable, and has good stability.
According to an embodiment of the invention, the offer form of second thermoelectric material is not particularly limited, wanted as long as meeting
It asks, those skilled in the art can according to need carry out flexible choice.In some embodiments of the invention, second thermoelectricity
Material is provided in the form of the second silk material.In other embodiments of the invention, second thermoelectric material is with alloy powder
Form provide.It is more suitable as a result, and carries out thermal spraying.
According to an embodiment of the invention, the specification of second silk material, in advance by the oxidation section on second silk material surface
Divide the method for removal, the partial size of the alloy powder, the second mask plate 301 (structural schematic diagram reference Fig. 3), second electrode 300
The features, the spy with the first thermoelectric material noted earlier, the first silk material, first electrode 200 etc. such as thickness, resistance, roughness
Advantage of seeking peace is identical, no longer excessively repeats herein.
According to an embodiment of the invention, the area of the contact area 400 is not particularly limited, as long as meeting the requirements, this
Field technical staff can according to need carry out flexible choice.In some embodiments of the invention, the contact area 400
Area can be 0.5-200 square millimeters.In some specific embodiments of the present invention, the area of the contact area can be
0.5 square millimeter, 1 square millimeter, 10 square millimeters, 50 square millimeters, 100 square millimeters, 150 square millimeters, 200 squares of millis
Rice.Thus, it is possible to which to prepare resulting contact such as temperature transducer has good linear, thermo-electromotive force is larger, sensitivity
Height, can be under the premise of guaranteeing accurately to judge temperature measuring point position, and the reliability of thermometric is higher.
According to an embodiment of the invention, referring to Fig. 2 b, (left side is the schematic diagram of the section structure in figure 2b, in figure 2b right side
For planar structure schematic diagram), the contact area 400 only includes the contact surface perpendicular to the substrate 100, reference Fig. 2 c (
Left side is the schematic diagram of the section structure in Fig. 2 c, and right side is planar structure schematic diagram in figure 2 c), the contact area 400 can also
It also include the contact surface for being parallel to the substrate 100 both to include the contact surface perpendicular to the substrate 100.
In another aspect of the invention, the present invention provides a kind of contact temperature-measuring sensors.Reality according to the present invention
Example is applied, which prepared by mentioned-above method.Inventors have found that the contact temperature-measuring senses
Device directly contacts testee, and especially suitable for field of household appliances, structure is simple, and with short production cycle, temperature measurement accuracy is high, sensitivity
High, thermal response speed is exceedingly fast, it can be achieved that in real time, accurately thermometric, temperature controlling function, properties of product and user experience are good.
In some embodiments of the invention, referring to Fig. 6 a to 6b, the contact temperature-measuring sensor is specifically included: substrate
100；First electrode 200；Second electrode 300；And contact area 400.The substrate 100 is by metallic matrix 110, buffer layer
120, insulating coating 130 is constituted.The buffer layer 120 is covered on the surface of the metallic matrix 110；The insulating coating 130
It is covered on the surface of the buffer layer 120；The contact area 400 only includes the contact surface (structure perpendicular to the substrate 100
Schematic diagram is referring to Fig. 6 a, and left side is the schematic diagram of the section structure in Fig. 6 a, and right side is planar structure schematic diagram in Fig. 6 a),
It can both include the contact surface perpendicular to the substrate 100, and also include the contact surface (structural representation for being parallel to the substrate 100
Figure is referring to Fig. 6 b, and left side is the schematic diagram of the section structure in figure 6b, and right side is planar structure schematic diagram in figure 6b).
According to an embodiment of the invention, the specific type of the contact temperature-measuring sensor is not particularly limited, as long as full
Foot requires, and those skilled in the art can according to need carry out flexible choice, for example, can include but is not limited to film thermocouple,
The thermocouple temperature measurements sensors such as armoured thermocouple, surface thermocouple, explosion-proof thermocouple.In some specific embodiments of the present invention
In, referring to Fig. 7, the specific type of the contact temperature-measuring sensor can be film thermocouple.The contact temperature-measuring passes as a result,
The trend, good compatibility, thermal capacitance that sensor meets micromation is small, high sensitivity, thermal response speed are fast.
According to an embodiment of the invention, the metallic matrix 110, buffer layer 120, insulating coating 130 and first electrode
200 and second electrode 300 specific material category, preparation method, the features such as area of contact area 400 and advantage are and front
It is described identical, it no longer excessively repeats herein.
In an additional aspect of the present invention, the present invention provides a kind of contact temperature-measuring sensors.Reality according to the present invention
Example is applied, referring to Fig. 6 a to 6b, which includes: substrate 100；First electrode 200 and second electrode 300, institute
It states first electrode 200 and the second electrode 300 is arranged on the first surface of the substrate 100, the first electrode 200
There is at least one contact area 400, and the first electrode 200 and the second electrode between the second electrode 300
300 ingredient is different, and the first electrode 200 and the second electrode 300 all have rough surface.Inventors have found that this connects
Touch temperature transducer directly contacts testee, and especially suitable for field of household appliances, structure is simple, with short production cycle, thermometric essence
Spend high, sensitivity is high, thermal response speed be exceedingly fast, it can be achieved that in real time, accurately thermometric, temperature controlling function, properties of product and use
It experiences at family.
According to an embodiment of the invention, the first electrode 200 and the second electrode 300 have coarse surface.It needs
It is noted that coarse surface of the present invention should be the coarse surface that naked eyes can distinguish.Of the invention some
In embodiment, the surface roughness of the first electrode 200 is greater than 1 micron.The contact temperature-measuring sensor prepared as a result, is special
Suitable for field of household appliances, structure is simple, with short production cycle, and temperature measurement accuracy is high, high sensitivity, and thermal response speed is fast, it can be achieved that real
When, accurately thermometric, temperature controlling function, properties of product and user experience are good, and want in the preparation to the control precision of technological parameter
Ask low, technological feasibility is high, and good reliability is at low cost, high production efficiency.
According to an embodiment of the invention, the thickness of the first electrode 200 and the second electrode 300 is not limited especially
System, as long as meeting the requirements, those skilled in the art can according to need carry out flexible choice.In some embodiments of the present invention
In, the average thickness of the first electrode 200 and the second electrode 300 can be 5-100 microns.It is of the invention it is some more
Add in preferred embodiment, the average thickness of the first electrode 200 and the second electrode 300 can be 10-60 microns.?
In some specific embodiments of the present invention, the average thickness of the first electrode 200 and the second electrode 300 can be micro- for 10
Rice, 20 microns, 30 microns, 40 microns, 50 microns, 60 microns.The thermometric effect of resulting contact temperature-measuring sensor is prepared as a result,
Fruit is good, so that the first electrode 200 and the second electrode 300 have higher reliability and better wearability simultaneously
Can, homogeneity is more preferable, and visually more beautiful.
According to an embodiment of the invention, the contact temperature-measuring sensor is also possible to prepare by mentioned-above method
, specific steps, process conditions of the method etc. are same as previously described, no longer excessively repeat herein.
In an additional aspect of the present invention, the present invention provides a kind of cooking equipments.According to an embodiment of the invention, this is cooked
Equipment of preparing food includes mentioned-above contact temperature-measuring sensor.Inventors have found that the culinary art effect of the cooking equipment it is good, it can be achieved that
Really intelligent culinary art, and all feature and advantage with mentioned-above contact temperature-measuring sensor, herein not after
It repeats more.
According to an embodiment of the invention, the contact temperature-measuring sensor setting is direct with food in the cooking equipment
The side of contact.The temperature measurement accuracy of the contact temperature-measuring sensor is high, it can be achieved that real-time temperature control, high reliablity are realized as a result,
Really intelligent culinary art, culinary art effect are good.
According to an embodiment of the invention, the cooking equipment further includes protective layer.The specific material of the protective layer not by
Especially limitation, as long as meeting the requirements, those skilled in the art can according to need carry out flexible choice.In some realities of the invention
It applies in example, the specific material category of the protective layer can be teflon coatings or ceramic non-stick coating.It as a result, on the one hand can
To play a protective role during the cooking process to the contact temperature-measuring sensor, to prevent during the cooking process to the contact
Temperature transducer generates damage and influences thermometric effect, and on the other hand, teflon coatings and ceramic non-stick coating are food-grade
Coating will not generate damage to human body after long-time use.
According to an embodiment of the invention, the thickness of the protective layer is not particularly limited, and as long as meeting the requirements, this field skill
Art personnel can according to need carry out flexible choice.In some embodiments of the invention, the thickness of the protective layer can be
10-50 microns.In some specific embodiments of the present invention, the thickness of the protective layer can for 10 microns, 20 microns, it is 30 micro-
Rice, 40 microns, 50 microns.As a result, both will not it is excessively thin due to the thickness of protective layer and can not be to the contact temperature-measuring sensor
It plays a protective role, the temperature measurement accuracy of the contact temperature-measuring sensor will not be influenced since the thickness of protective layer is blocked up.
According to an embodiment of the invention, the specific type of the cooking equipment is not particularly limited, as long as meeting the requirements, this
Field technical staff can according to need flexible choice, for example including but be not limited to electromagnetic oven, electric cooker, electric pressure cooking saucepan, electric heating
Pot, electric scissors pot, electric cooking pot and electric kettle.
According to an embodiment of the invention, the electromagnetic oven, electric cooker, electric pressure cooking saucepan, electric food warmer, electric scissors pot, electric cooking pot and
Electric kettle all has the general of electromagnetic oven in this field, electric cooker, electric pressure cooking saucepan, electric food warmer, electric scissors pot, electric cooking pot and electric kettle
Structure no longer excessively repeats herein.
The embodiment of the present invention is described below in detail.
The accuracy test of contact temperature-measuring sensor (illustrates that the present invention passes contact temperature-measuring by taking film thermocouple as an example
The test method of the precision of sensor)
Using the temperature measurement accuracy of device to test shown in Fig. 8 film thermocouple of the invention, by film of the present invention
Thermocouple (being not shown in the figure) and standard couple (standard couple of material identical as film thermocouple of the present invention,
It is not shown in the figure) it is formed on potsherd 1000, potsherd 1000 is placed on heater 2000, film of the present invention
The temperature measuring point of thermocouple is T, and the temperature measuring point of standard couple is TMark, make T and TMarkAs close possible to outside covering insulation material
3000, heater 2000 is opened, is gradually heated up, acquires T and T using temperature sampler 4000MarkThe temperature of two o'clock draws the present invention
- 300 DEG C of room temperature of temperature variation curve of the film thermocouple and standard couple.
Embodiment 1
The method for preparing contact temperature-measuring sensor
1. using mass fraction ultrasonic for 10% salt acid soak on the clean ceramics of surface cleaning (100*200*1mm)
10min, then ultrasound 20min is impregnated with alcohol solvent；
2. the first mask plate of hollow out first electrode pattern is covered on ceramics；
3. removing the oxidized portion on the first silk material (ingredient is iron, diameter 1.2mm) surface；
4. being N in carrier gas2Under conditions of, using electric arc spraying equipment by the first line-material coating in covering the first mask plate
Ceramics on, spray voltage 40V, electric current 100A, spray distance 400mm, spraying air pressure is 0.4MPa, the mobile speed of spray gun
Degree is 100mm/S, forms the first electrode of contact temperature-measuring sensor, and average thickness is 15 μm, and resistance is 350 Ω；
5. the second mask plate of hollow out second electrode pattern is covered on ceramics, the pattern of hollow out on the second mask plate
There are an overlapping region, area 2*5mm with the pattern of hollow out on the first mask plate2, contact zone is formed in the overlapping region
Domain；
6. removing the second silk material (ingredient Cu55Ni45, diameter 1.5mm) surface oxidized portion；
7. being N in carrier gas2Under conditions of, using electric arc spraying equipment by the second line-material coating in covering the second mask plate
Ceramics on, spray voltage 20V, electric current 50A, spray distance 200mm, spraying air pressure is 0.4MPa, the mobile speed of spray gun
Degree is 100mm/S, forms the second electrode of contact temperature-measuring sensor, and average thickness is 25 μm, and resistance is 70 Ω；
8. testing its temperature variation curve (as shown in Figure 9) with -300 DEG C of room temperature of standard temperature transducer, You Tuke
Know, the temperature variation curve of the contact temperature-measuring sensor is almost consistent with the temperature variation curve of standard temperature transducer, accidentally
Difference about 1%.
Embodiment 2
The method for preparing contact temperature-measuring sensor
1. stainless steel alloy (200*200*1mm) is carried out blasting treatment using 80 mesh Brown Alundums, then carry out surface insulation
Processing；
2. by the first mask plate of hollow out first electrode pattern be covered in stainless steel alloy of the surface Jing Guo insulation processing it
On；
3. removing the first silk material (ingredient Ni90Cr10, diameter 2.0mm) surface oxidized portion；
4. being N in carrier gas2Under conditions of, using electric arc spraying equipment by the first line-material coating in covering the first mask plate
Ceramics on, spray voltage 20V, electric current 100A, spray distance 300mm, spraying air pressure is 0.6MPa, the mobile speed of spray gun
Degree is 100mm/S, forms the first electrode of contact temperature-measuring sensor, and average thickness is 35 μm, and resistance is 150 Ω；
5. by the second mask plate of hollow out second electrode pattern be covered in stainless steel alloy of the surface Jing Guo insulation processing it
On, the pattern of hollow out has an overlapping region, area 5*5mm on the pattern of hollow out and the first mask plate on the second mask plate2,
Contact area is formed in the overlapping region；
6. removing the second silk material (ingredient Cu55Ni45, diameter 2.0mm) surface oxidized portion；
7. being N in carrier gas2Under conditions of, using electric arc spraying equipment by the second line-material coating in covering the second mask plate
Ceramics on, spray voltage 30V, electric current 400A, spray distance 200mm, spraying air pressure is 0.8MPa, the mobile speed of spray gun
Degree is 300mm/S, forms the second electrode of contact temperature-measuring sensor, and average thickness is 45 μm, and resistance is 120 Ω；
8. testing its temperature variation curve (as shown in Figure 10) with -300 DEG C of room temperature of standard temperature transducer, You Tuke
Know, the temperature variation curve of the contact temperature-measuring sensor is almost consistent with the temperature variation curve of standard temperature transducer, accidentally
Difference about 1%.
Embodiment 3
The method for preparing contact temperature-measuring sensor
1. the aluminium alloy surface (200*400*2mm) is carried out insulation processing；
2. the first mask plate of hollow out first electrode pattern is covered on aluminium alloy of the surface Jing Guo insulation processing；
3. removing the oxidized portion on the surface the first silk material (ingredient Cu, diameter 1.8mm)；
4. under conditions of carrier gas is Ar, using electric arc spraying equipment by the first line-material coating in covering the first mask plate
Ceramics on, spray voltage 40V, electric current 100A, spray distance 400mm, spraying air pressure is 0.4MPa, the mobile speed of spray gun
Degree is 100mm/S, forms the first electrode of contact temperature-measuring sensor, and average thickness is 25 μm, and resistance is 150 Ω；
5. the second mask plate of hollow out second electrode pattern is covered on aluminium alloy of the surface Jing Guo insulation processing, the
The pattern of hollow out has an overlapping region, area 2*2mm on the pattern of hollow out and the first mask plate on two mask plates2, at this
Contact area is formed in overlapping region；
6. removing the second silk material (ingredient Ni97Si3, diameter 1.8mm) surface oxidized portion；
7. under conditions of carrier gas is Ar, using electric arc spraying equipment by the second line-material coating in covering the second mask plate
Ceramics on, spray voltage 20V, electric current 50A, spray distance 100mm, spraying air pressure is 0.2MPa, the mobile speed of spray gun
Degree is 400mm/S, forms the second electrode of contact temperature-measuring sensor, and average thickness is 45 μm, and resistance is 15 Ω；
8. testing its temperature variation curve with -300 DEG C of room temperature of standard temperature transducer, temperature measurement error is about 1%.
Embodiment 4
The method for preparing contact temperature-measuring sensor
1. the clean devitrified glass of surface cleaning (300*300*4mm) is carried out blasting treatment using 40 mesh Brown Alundums；
2. the first mask plate of hollow out first electrode pattern is covered on devitrified glass；
3. removing the first silk material (ingredient Pt90Rh10, diameter 2.5mm) surface oxidized portion；
4. under conditions of carrier gas is Ar, using electric arc spraying equipment by the first line-material coating in covering the first mask plate
Ceramics on, spray voltage 40V, electric current 400A, spray distance 200mm, spraying air pressure is 0.6MPa, the mobile speed of spray gun
Degree is 200mm/S, forms the first electrode of contact temperature-measuring sensor, and average thickness is 15 μm, and resistance is 150 Ω；
5. the second mask plate of hollow out second electrode pattern is covered on ceramics, the pattern of hollow out on the second mask plate
There are an overlapping region, area 2*2mm with the pattern of hollow out on the first mask plate2, contact zone is formed in the overlapping region
Domain；
6. removing the second silk material (ingredient Pt94Rh6, diameter 2.5mm) surface oxidized portion；
7. under conditions of carrier gas is Ar, using electric arc spraying equipment by the second line-material coating in covering the second mask plate
Ceramics on, spray voltage 30V, electric current 300A, spray distance 100mm, spraying air pressure is 0.4MPa, the mobile speed of spray gun
Degree is 400mm/S, forms the second electrode of contact temperature-measuring sensor, and average thickness is 15 μm, and resistance is 15 Ω；
8. testing its temperature variation curve with -300 DEG C of room temperature of standard temperature transducer, temperature measurement error is about 1%.
Embodiment 5
The method for preparing contact temperature-measuring sensor
1. stainless steel alloy (200*200*1mm) is carried out blasting treatment using 100 Brown Alundums, then its surface is carried out exhausted
Edge processing；
2. by the first mask plate of hollow out first electrode pattern be covered in stainless steel alloy of the surface Jing Guo insulation processing it
On；
3. removing the first silk material (ingredient Ni90Cr10, diameter 2.0mm) surface oxidized portion；
4. being N in carrier gas2Under conditions of, using electric arc spraying equipment by the first line-material coating in covering the first mask plate
Ceramics on, spray voltage 20V, electric current 100A, spray distance 300mm, spraying air pressure is 0.6MPa, the mobile speed of spray gun
Degree is 100mm/S, forms the first electrode of contact temperature-measuring sensor, and average thickness is 35 μm, and resistance is 150 Ω；
5. the second mask plate of hollow out second electrode pattern is covered on aluminium alloy of the surface Jing Guo insulation processing, the
The pattern of hollow out has an overlapping region, area 2*2mm on the pattern of hollow out and the first mask plate on two mask plates2, at this
Contact area is formed in overlapping region；
6. removing the second silk material (ingredient Ni97Si3, diameter 1.8mm) surface oxidized portion；
7. under conditions of carrier gas is Ar, using electric arc spraying equipment by the second line-material coating in covering the second mask plate
Ceramics on, spray voltage 20V, electric current 50A, spray distance 100mm, spraying air pressure is 0.2MPa, the mobile speed of spray gun
Degree is 400mm/S, forms the second electrode of contact temperature-measuring sensor, and average thickness is 45 μm, and resistance is 15 Ω；
8. testing its temperature variation curve with -300 DEG C of room temperature of standard temperature transducer, temperature measurement error is about 1%.
Embodiment 6
The method for preparing contact temperature-measuring sensor
1. the clean devitrified glass of surface cleaning (300*300*4mm) is carried out blasting treatment using 80 mesh white fused aluminas；
2. the first mask plate of hollow out first electrode pattern is covered on the clean devitrified glass of surface cleaning；
3. removing the first silk material (ingredient Pt90Rh10, diameter 2.5mm) surface oxidized portion；
4. being N in carrier gas2Under conditions of, using electric arc spraying equipment by the first line-material coating in covering the first mask plate
Devitrified glass on, spray voltage 40V, electric current 400A, spray distance 200mm, spraying air pressure be 0.6MPa, spray gun move
Dynamic speed is 200mm/S, forms the first electrode of contact temperature-measuring sensor, and average thickness is 15 μm, and resistance is 150 Ω；
5. the second mask plate of hollow out second electrode pattern is covered on the clean devitrified glass of surface cleaning, second
The pattern of hollow out has an overlapping region, area 2*2mm on the pattern of hollow out and the first mask plate on mask plate2, heavy at this
Contact area is formed in folded region；
6. preparing alloy powder (ingredient Pt94Rh6, particle diameter distribution is 15-45 μm)；
7. alloy powder is sprayed on the devitrified glass for covering the second mask plate using flame spray device, angle of spray
Degree is 85 degree, spray distance 150mm, oxygen pressure 0.5MPa, acetylene pressure 0.1MPa, and spray gun movement speed is
200mm/s, powder sending quantity 0.5Kg/h form the second electrode of contact temperature-measuring sensor, and average thickness is 25 μm, and resistance is
150Ω；
8. testing its temperature variation curve (as shown in figure 11) with -300 DEG C of room temperature of standard temperature transducer, You Tuke
Know, the temperature variation curve of the contact temperature-measuring sensor is almost consistent with the temperature variation curve of standard temperature transducer, accidentally
Difference about 2%.
Embodiment 7
The method for preparing contact temperature-measuring sensor
1. the clean aluminium oxide ceramics of surface cleaning (100*100*2mm) is subjected to blasting treatment using 100 mesh Brown Alundums,
10% salt acid soak ultrasound 10min is used again, then impregnates ultrasound 20min with ethyl alcohol；
2. the first mask plate of hollow out first electrode pattern is covered on the clean aluminium oxide ceramics of surface cleaning, and
It is heated to 100 DEG C；
3. preparing fine copper powder (15-45 μm of particle diameter distribution)；
4. fine copper powder is sprayed on the aluminium oxide ceramics for covering the first mask plate using flame spray device, spray
Angle is 75 degree, spray distance 200mm, oxygen pressure 0.7MPa, acetylene pressure 0.12MPa, and spray gun movement speed is
200mm/s, powder sending quantity 0.5Kg/h form the first electrode of contact temperature-measuring sensor, and average thickness is 25 μm, and resistance is
150Ω；
5. the second mask plate of hollow out second electrode pattern is covered on the clean aluminium oxide ceramics of surface cleaning, the
The pattern of hollow out has an overlapping region, area 2*5mm on the pattern of hollow out and the first mask plate on two mask plates2, at this
Contact area is formed in overlapping region；
6. preparing alloy powder (ingredient Cu55Ni45, particle diameter distribution is 15-45 μm)；
7. being sprayed at alloy powder on the aluminium oxide ceramics for covering the second mask plate using flame spray device, spray
Angle is 90 degree, spray distance 100mm, oxygen pressure 0.8MPa, acetylene pressure 0.13MPa, and spray gun movement speed is
100mm/s, powder sending quantity 1.0Kg/h form the second electrode of contact temperature-measuring sensor, and average thickness is 45 μm, and resistance is
15Ω；
8. testing its temperature variation curve (as shown in figure 12) with -300 DEG C of room temperature of standard temperature transducer, You Tuke
Know, the temperature variation curve of the contact temperature-measuring sensor is almost consistent with the temperature variation curve of standard temperature transducer, accidentally
Difference about 1%.
Embodiment 8
1. the stainless steel alloy surface (200*200*1mm) is carried out insulation processing；
2. by the first mask plate of hollow out first electrode pattern be covered in stainless steel alloy of the surface Jing Guo insulation processing it
On, and it is heated to 60 DEG C；
3. preparing alloy powder (ingredient Ni90Cr10, 15-45 μm of particle diameter distribution)；
4. being sprayed at alloy powder on the stainless steel alloy for covering the first mask plate using flame spray device, spray
Angle is 80 degree, spray distance 250mm, oxygen pressure 0.8MPa, acetylene pressure 0.15MPa, and spray gun movement speed is
400mm/s, powder sending quantity 1.5Kg/h form the first electrode of contact temperature-measuring sensor, and average thickness is 35 μm, and resistance is
120Ω；
5. by the second mask plate of hollow out second electrode pattern be covered in stainless steel alloy of the surface Jing Guo insulation processing it
On, the pattern of hollow out has an overlapping region, area 5*5mm on the pattern of hollow out and the first mask plate on the second mask plate2,
Contact area is formed in the overlapping region；
6. preparing alloy powder (ingredient Cu55Ni45, particle diameter distribution is 15-45 μm)；
7. being sprayed at alloy powder on the stainless steel alloy for covering the second mask plate using flame spray device, spray
Angle is 90 degree, spray distance 100mm, oxygen pressure 0.9MPa, acetylene pressure 0.10MPa, and spray gun movement speed is
400mm/s, powder sending quantity 1.5Kg/h form the second electrode of contact temperature-measuring sensor, and average thickness is 50 μm, and resistance is
15Ω；
8. testing its temperature variation curve with -300 DEG C of room temperature of standard temperature transducer, temperature measurement error is about 1%.
Embodiment 9
The method for preparing contact temperature-measuring sensor
1. aluminium alloy (200*400*2mm) is carried out blasting treatment using 50 mesh white fused aluminas, then insulate to its surface
Processing；
2. the first mask plate of hollow out first electrode pattern is covered on aluminium alloy of the surface Jing Guo insulation processing, and
It is heated to 80 DEG C；
3. preparing alloy powder (ingredient Ni84.5Cr14Si1.5, 15-45 μm of particle diameter distribution)；
4. alloy powder is sprayed on the aluminium alloy for covering the first mask plate using flame spray device, spray angle
It is 85 degree, spray distance 150mm, oxygen pressure 0.7MPa, acetylene pressure 0.15MPa, spray gun movement speed is
500mm/s, powder sending quantity 1.0Kg/h form the first electrode of contact temperature-measuring sensor, and average thickness is 15 μm, and resistance is
150Ω；
5. the second mask plate of hollow out second electrode pattern is covered on aluminium alloy of the surface Jing Guo insulation processing, the
The pattern of hollow out has an overlapping region, area 2*2mm on the pattern of hollow out and the first mask plate on two mask plates2, at this
Contact area is formed in overlapping region；
6. preparing alloy powder (ingredient Ni97Si3, particle diameter distribution is 15-45 μm)；
7. being sprayed at alloy powder on the stainless steel alloy for covering the second mask plate using flame spray device, spray
Angle is 85 degree, spray distance 150mm, oxygen pressure 0.8MPa, acetylene pressure 0.10MPa, and spray gun movement speed is
200mm/s, powder sending quantity 1.0Kg/h form the second electrode of contact temperature-measuring sensor, and average thickness is 45 μm, and resistance is
15Ω；
8. testing its temperature variation curve with -300 DEG C of room temperature of standard temperature transducer, temperature measurement error is about 1%.
Embodiment 10
The method for preparing contact temperature-measuring sensor
1. the clean devitrified glass of surface cleaning (300*300*4mm) is carried out blasting treatment using 80 mesh Brown Alundums；
2. the first mask plate of hollow out first electrode pattern is covered on the clean devitrified glass of surface cleaning, and add
Heat is to 80 DEG C；
3. preparing alloy powder (ingredient Pt90Rh10, 15-45 μm of particle diameter distribution)；
4. alloy powder is sprayed on the devitrified glass for covering the first mask plate using flame spray device, angle of spray
Degree is 85 degree, spray distance 200mm, oxygen pressure 0.85MPa, acetylene pressure 0.12MPa, and spray gun movement speed is
100mm/s, powder sending quantity 1.0Kg/h form the first electrode of contact temperature-measuring sensor, and average thickness is 40 μm, and resistance is
75Ω；
5. the second mask plate of hollow out second electrode pattern is covered on the clean devitrified glass of surface cleaning, second
The pattern of hollow out has an overlapping region, area 2*2mm on the pattern of hollow out and the first mask plate on mask plate2, heavy at this
Contact area is formed in folded region；
6. preparing alloy powder (ingredient Pt94Rh6, particle diameter distribution is 15-45 μm)；
7. alloy powder is sprayed on the devitrified glass for covering the second mask plate using flame spray device, angle of spray
Degree is 80 degree, spray distance 250mm, oxygen pressure 0.5MPa, acetylene pressure 0.12MPa, and spray gun movement speed is
500mm/s, powder sending quantity 1.0Kg/h form the second electrode of contact temperature-measuring sensor, and average thickness is 20 μm, and resistance is
150Ω；
8. testing its temperature variation curve with -300 DEG C of room temperature of standard temperature transducer, temperature measurement error is about 1%.
Embodiment 11
The method for preparing contact temperature-measuring sensor
1. the clean aluminium oxide ceramics of surface cleaning (100*100*2mm) is subjected to blasting treatment using 100 mesh Brown Alundums,
10% salt acid soak ultrasound 10min is used again, impregnates ultrasound 20min with ethyl alcohol；
2. the first mask plate of hollow out first electrode pattern is covered on the clean aluminium oxide ceramics of surface cleaning；
3. preparing pure iron powder (15-45 μm of particle diameter distribution)；
4. pure iron powder is sprayed on the aluminium oxide ceramics for covering the first mask plate using plasma spraying equipment, spray
Painting electric current is 500A, spray voltage 50V, argon flow 40L/min, and hydrogen flowing quantity 6L/min, powder feeding carrier gas flux is
5L/min, spray distance 200mm, spray gun movement speed are 200mm/s, powder sending quantity 10g/min, form contact temperature-measuring and pass
The first electrode of sensor, average thickness are 25 μm, and resistance is 225 Ω；
5. the second mask plate of hollow out second electrode pattern is covered on the clean aluminium oxide ceramics of surface cleaning, the
The pattern of hollow out has an overlapping region, area 2*5mm on the pattern of hollow out and the first mask plate on two mask plates2, at this
Contact area is formed in overlapping region；
6. preparing alloy powder (ingredient Cu55Ni45, particle diameter distribution is 15-45 μm)；
7. alloy powder is sprayed on the devitrified glass for covering the second mask plate using plasma apparatus, spraying current
For 300A, spray voltage 70V, argon flow 50L/min, hydrogen flowing quantity 4L/min, powder feeding carrier gas flux is 15L/
Min, spray distance 100mm, spray gun movement speed are 400mm/s, powder sending quantity 50g/min, form contact temperature-measuring sensing
The second electrode of device, average thickness are 50 μm, and resistance is 20 Ω；
8. testing its temperature variation curve (as shown in figure 13) with -300 DEG C of room temperature of standard temperature transducer, You Tuke
Know, the temperature variation curve of the contact temperature-measuring sensor is almost consistent with the temperature variation curve of standard temperature transducer, accidentally
Difference about 1%.
Embodiment 12
The method for preparing contact temperature-measuring sensor
1. stainless steel alloy (200*200*1mm) is carried out blasting treatment using 80 mesh white fused aluminas, then its surface is carried out
Insulation processing；
2. by the first mask plate of hollow out first electrode pattern be covered in stainless steel alloy of the surface Jing Guo insulation processing it
On；
3. preparing alloy powder (ingredient Ni90Cr10, 15-45 μm of particle diameter distribution)；
4. being sprayed at alloy powder on the stainless steel alloy for covering the first mask plate using plasma spraying equipment, spray
Painting electric current is 700A, spray voltage 40V, argon flow 60L/min, and hydrogen flowing quantity 20L/min, powder feeding carrier gas flux is
10L/min, spray distance 100mm, spray gun movement speed are 500mm/s, powder sending quantity 10g/min, form contact temperature-measuring
The first electrode of sensor, average thickness are 15 μm, and resistance is 300 Ω；
5. by the second mask plate of hollow out second electrode pattern be covered in stainless steel alloy of the surface Jing Guo insulation processing it
On, the pattern of hollow out has an overlapping region, area 5*5mm on the pattern of hollow out and the first mask plate on the second mask plate2,
Contact area is formed in the overlapping region；
6. preparing alloy powder (ingredient Cu55Ni45, particle diameter distribution is 15-45 μm)；
7. alloy powder is sprayed on the devitrified glass for covering the second mask plate using plasma apparatus, spraying current
For 300A, spray voltage 70V, argon flow 50L/min, helium gas flow 4L/min, powder feeding carrier gas flux is 15L/
Min, spray distance 100mm, spray gun movement speed are 400mm/s, powder sending quantity 50g/min, form contact temperature-measuring sensing
The second electrode of device, average thickness are 50 μm, and resistance is 20 Ω；
8. testing its temperature variation curve with -300 DEG C of room temperature of standard temperature transducer, temperature measurement error is about 1%.
Embodiment 13
The method for preparing contact temperature-measuring sensor
1. aluminium alloy (200*400*2mm) is carried out surface insulation processing；
2. the first mask plate of hollow out first electrode pattern is covered on aluminium alloy of the surface Jing Guo insulation processing；
3. preparing alloy powder (ingredient Ni84.5Cr14Si1.5, 15-45 μm of particle diameter distribution)；
4. alloy powder is sprayed on the aluminium alloy for covering the first mask plate using plasma spraying equipment, spraying electricity
Stream is 300A, spray voltage 50V, argon flow 40L/min, and hydrogen flowing quantity 15L/min, powder feeding carrier gas flux is 10L/
Min, spray distance 200mm, spray gun movement speed are 100mm/s, powder sending quantity 25g/min, form contact temperature-measuring sensing
The first electrode of device, average thickness are 25 μm, and resistance is 150 Ω；
5. the second mask plate of hollow out second electrode pattern is covered on aluminium alloy of the surface Jing Guo insulation processing, the
The pattern of hollow out has an overlapping region, area 2*2mm on the pattern of hollow out and the first mask plate on two mask plates2, at this
Contact area is formed in overlapping region；
6. preparing alloy powder (ingredient Ni97Si3, particle diameter distribution is 15-45 μm)；
7. being sprayed at alloy powder on the aluminium alloy for covering the second mask plate using plasma apparatus, spraying current is
600A, spray voltage 70V, argon flow 60L/min, hydrogen flowing quantity 25L/min, powder feeding carrier gas flux are 15L/min,
Spray distance is 250mm, and spray gun movement speed is 200mm/s, powder sending quantity 30g/min, forms contact temperature-measuring sensor
Second electrode, average thickness are 50 μm, and resistance is 30 Ω；
8. testing its temperature variation curve with -300 DEG C of room temperature of standard temperature transducer, temperature measurement error is about 2%.
Embodiment 14
The method for preparing contact temperature-measuring sensor
1. the clean devitrified glass of surface cleaning (300*300*4mm) is carried out blasting treatment using 60 mesh Brown Alundums；
2. the first mask plate of hollow out first electrode pattern is covered on the clean devitrified glass of surface cleaning；
3. preparing alloy powder (ingredient Pt90Rh10, 15-45 μm of particle diameter distribution)；
4. being sprayed at alloy powder on the devitrified glass for covering the first mask plate using plasma spraying equipment, spray
Electric current is 500A, spray voltage 70V, argon flow 30L/min, and hydrogen flowing quantity 6L/min, powder feeding carrier gas flux is 9L/
Min, spray distance 200mm, spray gun movement speed are 200mm/s, powder sending quantity 15g/min, form contact temperature-measuring sensing
The first electrode of device, average thickness are 25 μm, and resistance is 150 Ω；
5. the second mask plate of hollow out second electrode pattern is covered on the clean devitrified glass of surface cleaning, second
The pattern of hollow out has an overlapping region, area 2*2mm on the pattern of hollow out and the first mask plate on mask plate2, heavy at this
Contact area is formed in folded region；
6. preparing alloy powder (ingredient Pt94Rh6, particle diameter distribution is 15-45 μm)；
7. being sprayed at alloy powder on the aluminium alloy for covering the second mask plate using plasma apparatus, spraying current is
500A, spray voltage 70V, argon flow 50L/min, hydrogen flowing quantity 4L/min, powder feeding carrier gas flux are 5L/min, spray
Applying distance is 250mm, and spray gun movement speed is 500mm/s, powder sending quantity 40g/min, forms the of contact temperature-measuring sensor
Two electrodes, average thickness are 50 μm, and resistance is 20 Ω；
8. testing its temperature variation curve with -300 DEG C of room temperature of standard temperature transducer, temperature measurement error is about 2%.
Embodiment 15
(structural schematic diagram is referring to Fig. 6 a to Fig. 6 b) for contact temperature-measuring sensor
1. metallic matrix: 5 line aluminium alloy surfaces carry out blasting treatment, and gravel size is 40 mesh, carry out insulation processing；
2. buffer layer: this layer is the layer that interpenetrates between the metal base surface and insulating coating of sandblasting, and canine tooth is handed over
It is combined as mistake, thickness is about 40 μm；
3. insulating coating: the layer is ZrO2Layer, with a thickness of 300 μm, preparation method is plasma spray coating, and porosity is
10%；
4. first electrode: iron；Second electrode Ni97Si3, thickness is 40 μm；Preparation method is plasma spray coating.
Figure 14 shows the scanning electron micrograph of the contact temperature-measuring sensor section.
Its temperature variation curve with -300 DEG C of room temperature of standard temperature transducer is tested, temperature measurement error is about 1%.
Embodiment 16
(structural schematic diagram is referring to Fig. 6 a to Fig. 6 b) for contact temperature-measuring sensor
1. metallic matrix: titanium alloy surface carries out blasting treatment, and gravel size is 80 mesh, carries out surface insulation processing；
2. buffer layer: this layer is the layer that interpenetrates between the metal base surface and insulating coating of sandblasting, and canine tooth is handed over
It is combined as mistake, with a thickness of 30 μm；
3. insulating coating: the layer is Al2O3Layer, with a thickness of 200 μm, preparation method is plasma spray coating, and porosity is
10%；
4. first electrode: Ni90Cr10；Second electrode Cu55Si45, thickness is 30 μm；Preparation method is electric arc spraying.
Its temperature variation curve with -300 DEG C of room temperature of standard temperature transducer is tested, temperature measurement error is about 1%.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (24)
1. a kind of method for preparing contact temperature-measuring sensor characterized by comprising
Using heat spraying method, the first thermoelectric material is sprayed on the first surface of substrate, to form first electrode；
Using heat spraying method, on the first surface by the spraying of the second thermoelectric material, to form second electrode；
Wherein, there is at least one contact area, and the first thermoelectricity material between the second electrode and the first electrode
Expect different with the ingredient of second thermoelectric material.
2. the method according to claim 1, wherein the heat spraying method includes electric arc spraying, flame-spraying
At least one of with plasma spray coating.
3. according to the method described in claim 2, it is characterized in that, the carrier gas that uses of the electric arc spraying is nitrogen or indifferent gas
Body, and meet at least one of:
Voltage is 20-45V；
Electric current is 50-400A；
Spray distance is 50-400 millimeters；
It sprays air pressure and is more than or equal to 0.2MPa；
Spray gun movement speed 50-2000mm/S.
4. according to the method described in claim 3, it is characterized in that, first thermoelectric material and second thermoelectric material point
It is provided not in the form of the first silk material and the second silk material, and the diameter of first silk material and second silk material is independent
It is 1.0-2.5 millimeters.
5. according to the method described in claim 3, it is characterized in that, before carrying out the thermal spraying, in advance by described first
Silk material and the removal of the oxidized portion on second silk material surface.
6. according to the method described in claim 2, it is characterized in that, the flame-spraying meets at least one of:
Substrate preheating temperature is greater than 40 DEG C；
Spray angle is 60-90 degree；
Spray distance is 50-300mm；
Oxygen pressure is more than or equal to 0.5MPa；
Acetylene pressure is more than or equal to 0.1MPa；
Spray gun movement speed is 50-1000mm/S；
Powder sending quantity is 0.5-2.0Kg/h；
Powder material partial size is 15-45 μm.
7. according to the method described in claim 2, it is characterized in that, the plasma spray coating meets at least one of:
Electric current is 300-700A；
Voltage is 30-100V；
Argon flow is 30-70L/min；
Hydrogen or helium gas flow are 4-25L/min；
Powder feeding carrier gas flux is 3-15L/min；
Spray distance is 50-250mm；
Spray gun movement speed is 50-1000mm/S；
Powder feed rate is 5-50g/min.
8. the method according to claim 1, wherein the average thickness of the first electrode and the second electrode
Independent is 5-100 microns.
9. the method according to claim 1, wherein the resistance of the first electrode and the second electrode is respectively
It is independent to be not more than 1000 ohm.
10. the method according to claim 1, wherein the first electrode and the second electrode all have slightly
Rough surface.
11. the method according to claim 1, wherein the area of the contact area is 0.5-200 squares of milli
Rice.
12. the method according to claim 1, wherein the substrate includes that ceramics, devitrified glass and surface are passed through
One of metal of insulation processing.
13. according to the method for claim 12, which is characterized in that metal of the surface Jing Guo insulation processing be by with
Lower step preparation:
Buffer layer is formed on metallic matrix；
Insulating coating is formed on the buffer layer, to form the substrate.
14. according to the method for claim 13, which is characterized in that formed the metallic matrix material include aluminium alloy,
At least one of titanium alloy and stainless steel alloy.
15. the method according to claim 1, wherein first thermoelectric material includes platinum-rhodium alloy, nickel chromium triangle conjunction
At least one of gold, iron, copper, nichrosi and tungsten-rhenium alloy；Second thermoelectric material includes platinum-rhodium alloy, platinum, nickel
At least one of silicon alloy, nickel alumin(i)um alloy, nisiloy magnesium alloy and tungsten-rhenium alloy.
16. according to the method for claim 15, which is characterized in that first thermoelectric material includes Pt90Rh10、
Pt87Rh13、Pt70Rh30、Ni90Cr10, iron, copper, Ni84.5Cr14Si1.5、W97Re3And W95Re5At least one of；Second heat
Electric material includes Pt94Rh6, platinum, Ni97Si3、Ni97Al3、Cu55Ni45、Ni95.5Si4.5Mg1、W75Re25And W74Re26In at least one
Kind.
17. a kind of contact temperature-measuring sensor, which is characterized in that be by method system described in any one of claim 1-16
Standby.
18. a kind of contact temperature-measuring sensor characterized by comprising
Substrate；
First electrode and second electrode, the first electrode and the second electrode are arranged at the first surface of the substrate
On, there is at least one contact area, and the first electrode and described the between the first electrode and the second electrode
The ingredient of two electrodes is different,
The first electrode and the second electrode all have rough surface.
19. contact temperature-measuring sensor according to claim 18, which is characterized in that the first electrode and described second
The average thickness of electrode independent is 5-100 microns.
20. a kind of cooking equipment, which is characterized in that sensed including contact temperature-measuring described in any one of claim 17 to 19
Device.
21. cooking equipment according to claim 20, which is characterized in that the contact temperature-measuring sensor is arranged described
The side directly contacted in cooking equipment with food.
22. cooking equipment according to claim 21, which is characterized in that further include protective layer, the protective layer covers institute
Contact temperature-measuring sensor is stated, and is directly contacted with the food.
23. cooking equipment according to claim 22, which is characterized in that the protective layer be teflon coatings or ceramics not
It is stained with coating.
24. cooking equipment according to claim 22, which is characterized in that the protective layer with a thickness of 10-100 microns.
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| CN201810112325.7A CN110129706A (en) | 2018-02-05 | 2018-02-05 | Contact temperature-measuring sensor and preparation method thereof and cooking equipment |
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| CN201810112325.7A CN110129706A (en) | 2018-02-05 | 2018-02-05 | Contact temperature-measuring sensor and preparation method thereof and cooking equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110736559A (en) * | 2019-10-09 | 2020-01-31 | 武汉纺织大学 | Flexible temperature-pressure sensor and preparation method and application thereof |
| CN111659988A (en) * | 2020-05-18 | 2020-09-15 | 机械科学研究院浙江分院有限公司 | Surface strengthening method for high-temperature wear-resistant valve type slender workpiece |
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| KR20170126304A (en) * | 2016-05-09 | 2017-11-17 | 고려대학교 세종산학협력단 | Flexible temperature sensor device and method for fabricating flexible temperature sensor device |
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| CN110736559A (en) * | 2019-10-09 | 2020-01-31 | 武汉纺织大学 | Flexible temperature-pressure sensor and preparation method and application thereof |
| CN110736559B (en) * | 2019-10-09 | 2020-12-11 | 武汉纺织大学 | Flexible temperature-pressure sensor and preparation method and application thereof |
| CN111659988A (en) * | 2020-05-18 | 2020-09-15 | 机械科学研究院浙江分院有限公司 | Surface strengthening method for high-temperature wear-resistant valve type slender workpiece |
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