CN209039584U - A kind of cooking apparatus - Google Patents
A kind of cooking apparatus Download PDFInfo
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- CN209039584U CN209039584U CN201621253370.7U CN201621253370U CN209039584U CN 209039584 U CN209039584 U CN 209039584U CN 201621253370 U CN201621253370 U CN 201621253370U CN 209039584 U CN209039584 U CN 209039584U
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Abstract
The utility model provides a kind of coating and the pot body with it, cooking apparatus.The coating, cold spray process are made, coating with a thickness of 0.11-0.41mm.The utility model also provides a kind of pot body, including the surface of pot ontology is arranged in pot ontology and above-mentioned coating, the coating.The utility model also provides a kind of cooking apparatus, including electromagnetic induction coil and above-mentioned pot body, the electromagnetic induction coil are oppositely arranged with coating.The utility model provides a kind of coating, preparation method, pot body and the cooking apparatus with the pot body, has at low cost, and metal coating thickness is suitable, not easily to fall off, performance is stable, heating power is big and can batch stable application the advantages of.
Description
Technical field
The utility model belongs to cooking apparatus technical field more particularly to a kind of coating and the pot body with it, cooking pot
Tool.
Background technique
Currently, cookware is when being sprayed, generally using hot-spraying technique come prepares coating.By taking pot in IH magnetic conduction as an example,
The interior pot that pot largely uses composite material to make in existing IH magnetic conduction, this interior pot higher cost.Also there are many people's researchs one
Pot in magnetic conduction made of kind hot-spraying technique, although cost can be reduced, there are easy to fall off, electromagnetic parameters for its magnetic layer
The defects of difference, heating power is small, is difficult to batch stable application.
IH is writing a Chinese character in simplified form for Induction Heating, refers to two primary current (eddy current) caused by electromagnetically induced is utilized
By it is material-to-be-heated when the joule's heat energy that occurs.
Utility model content
In view of the problems of prior art, the utility model provides a kind of coating and the pot body with it, cooking pot
Tool, has at low cost, and metal coating thickness is suitable, not easily to fall off, and performance is stable, heating power is big and can batch stable application
The advantages of.
The technical solution that the utility model solves above-mentioned technical problem is as follows:
A kind of coating, the coating are made of cold spray process, coating with a thickness of 0.11-0.41mm.
Cold spraying (CS:Cold Spray), also known as aerodynamic force spraying technology refer to when the high speed with certain plasticity
After solid particles and matrix collision, the method that deposition forms coating occurs by strong plastic deformation.Under usual conditions, one
As concept be that will generate solid particles after solid particles collides certain matrix to act on the erosion of matrix.
The beneficial effects of the utility model are:
The coating prepared using cold spray process, is had the advantage that
(1) in cold spraying, spraying particle does not need to melt, and undergoes phase transition, aoxidizes, decomposing what even crystal grain was grown up
Driving force is all smaller, is conducive to the successful preparation of coating.
(2) small to matrix heat affecting, interfacial thermal stress is relatively low, and being conducive to raising interface binding power even can basis
Specifically used demand obtains super thick or microthin coating.
(3) energy consumption is less, is conducive to environmental protection.
(4) coating made from has many advantages, such as that coating compactness is good, can send out to avoid substrate in use and coating
Life falls off.
The utility model has selected the coating of suitable thickness range, have it is at low cost, metal coating thickness is suitable, is not easy
Fall off, performance is stable, heating power is big and can batch stable application the advantages of.If thickness is too small, it is easy to cause performance not
It is good；If thickness is too small, it is easy to cause the problems such as magnetic conductivity is not strong, and heating efficiency is low.
The coating of the utility model can choose different metal powders to assign coating different performances, such as: selection
The metal (such as: iron powder, powder of stainless steel or copper powder etc.) of magnetic property assigns the magnetic property of coating, selects wear-resisting property
Metal (such as: powder of stainless steel, aluminium powder etc., powder of stainless steel can be stainless steel 304 and stainless steel 306 etc.) applied to assign
The wear-resisting property of layer, selects the metal (such as: silver etc.) with anti-microbial property to assign the anti-microbial property of coating, can also be same
Coating made of multilayer cold spray process is set on one cookware.
Further, the coating be by metal powder under the action of working gas by cold pressure spray process painting be sprayed on it is to be painted
Apply the coating formed behind the surface of structure.
Further, the metal powder is selected from one or both of iron powder, powder of stainless steel, copper powder, aluminium powder and silver powder
Mixing.That is the material of the coating mixing that is one or both of iron, stainless steel, copper, aluminium and silver powder.
The powder of stainless steel includes 430 powder of stainless steel, 410 powder of stainless steel, 409 powder of stainless steel, 439 stainless steels
Powder, 304 powder of stainless steel, 306 powder of stainless steel and other kinds of powder of stainless steel.
Beneficial effect using the above scheme is: using iron powder, 430 powder of stainless steel, 410 powder of stainless steel, 409 stainless
Powdered steel, 439 powder of stainless steel, copper powder are conducive to increase the IH magnetic property of coating.Using aluminium powder, 304 powder of stainless steel,
306 powder of stainless steel are conducive to increase wear-resisting property.Be conducive to increase anti-microbial property using silver powder.
Further, the granularity of the metal powder is 1-50 microns.
Further, the working gas is mixed selected from one or both of nitrogen, helium.
The utility model provides a kind of preparation method of above-mentioned coating, comprising the following steps: by metal powder in work gas
The surface for being sprayed on structure to be sprayed is applied under the action of body by cold pressure spray process.
Beneficial effect using the above scheme is: in cold spraying, spraying particle does not need to melt, and undergo phase transition,
The driving force that oxidation, decomposition even crystal grain are grown up is all smaller, is conducive to the successful preparation of coating.It is small to matrix heat affecting, interface
Thermal stress is relatively low, is conducive to improve interface binding power.Energy consumption is less, is conducive to environmental protection.The metal as made from the above method
Coating has thickness suitable, not easily to fall off, performance is stable, heating power is big and can batch stable application the advantages of.
Further, the metal powder is selected from the mixing of one or both of iron powder, powder of stainless steel.
The powder of stainless steel includes 430 powder of stainless steel, 410 powder of stainless steel, 409 powder of stainless steel, 439 stainless steels
Powder, 304 powder of stainless steel, 306 powder of stainless steel and other kinds of powder of stainless steel.
Beneficial effect using the above scheme is: using iron powder, 430 powder of stainless steel, 410 powder of stainless steel, 409 stainless
Powdered steel, 439 powder of stainless steel, copper powder are conducive to increase the IH magnetic property of coating.Using aluminium powder, 304 powder of stainless steel,
306 powder of stainless steel are conducive to increase wear-resisting property.Be conducive to increase anti-microbial property using silver powder.
Further, the granularity of the metal powder is 1-50 microns.
Beneficial effect using the above scheme is: the suitable coating of thickness is advantageously formed using above-mentioned granularity, in use
The granularity stated, which also helps, obtains fine and close coating, if undersized, powder particle is easy fusing bonding；If granularity mistake
Greatly, particulate plastic deformation is small, and film layer porosity is high.
Further, speed of metal powder under the action of working gas is 620-700m/s.
Beneficial effect using the above scheme is: the spraying rate of suitable metal powder advantageously forms fine and close painting
Layer；If speed is excessive, particle is easy to cause to rebound, the problem of deposition efficiency reduces, and cold spraying Particle velocity is difficult again
It increases substantially, if speed is too small to be easy to cause the problems such as coating compactness is poor, binding force is insufficient.
Further, the powder sending quantity of the metal powder is 50-280g/min.
Beneficial effect using the above scheme is: suitable powder sending quantity advantageously ensures that suitable coating compactness and conjunction
Suitable coating deposition efficiency is easy to cause coating deposition efficiency low, is easy to cause if powder sending quantity is excessively high if powder sending quantity is too low
The problems such as compactness is poor, binding force is poor.
Further, the working gas is mixed selected from one or both of nitrogen, helium.
Beneficial effect using the above scheme is: advantageously reducing cost using above-mentioned gas, while avoiding above-mentioned gas
It reacts with metal, avoids the performance for influencing coating.
Further, the temperature of working gas is 400-800 DEG C.
Beneficial effect using the above scheme is:
It help to obtain comparatively dense coating using above-mentioned temperature, if temperature is excessively high, will lead to particle fusing bonding
In spray gun or nozzle is blocked, and Powder Oxidation may be made and then influence coating quality, to influence to spray.If temperature
It is too low, it is unfavorable for the plastic deformation of particle, the porosity between particle will increase, and being mingled with can also increase.
Further, the pressure of working gas is 2-4Mpa.
Beneficial effect using the above scheme is:
Coating of good performance is advantageously formed using above-mentioned pressure, spraying grain can be improved in pressure in a certain range
The speed of son and the anchoring strength of coating that makes is high, reduce porosity, coating compactness is good, but pressure is more than certain value
Later, the raising of pressure becomes very little to the influence of the rate of particle；If spray pressure is too small, be easy to cause the coating to be formed compared with
To be loose, gap is more and poor problem is combined between coating and matrix.
Further, working gas flow is 3200-3280L/min.
Beneficial effect using the above scheme is: suitable working gas flow rates in obtaining suitable coating layer thickness,
Meanwhile suitable working gas flow rates in the suitable deposition rate of acquisition and prevent metal to be oxidized, if flow is too low,
It is easy to cause deposition rate low, it is also possible to which metal is oxidized；If flow is excessively high, it is easy to cause air pressure excessive, to can lead
Powder rebound is caused to reduce deposition rate instead, surface covering is coarse.
Further, when cold spraying, spray gun movement speed is 300-600mm/s.
Beneficial effect using the above scheme is: take above-mentioned speed to be conducive to coating uniform, if speed it is too small or
It crosses and is mostly easy to cause coating uneven, the big problem of difference in thickness.
Further, spray distance 3-60mm.
Beneficial effect using the above scheme is: suitable deposition rate is help to obtain using above-mentioned distance, if away from
From excessive, deposition rate is easy to cause to decline, if being easy to cause powder to rebound so as to cause deposition rate decline apart from too small.
Further, spray time 5-20s.
Beneficial effect using the above scheme is: suitable coating layer thickness is help to obtain using above-mentioned spray time,
If spray time is shorter, thickness is too small to be easy to cause performance bad, is easy to cause thickness excessive if spray time is too long, no
It only not can be further improved magnetic property and be easy to cause the problems such as roughness is excessive, coating is easy to fall off.
The utility model provides a kind of pot body, including the table of pot ontology is arranged in pot ontology and above-mentioned coating, the coating
Face.
Beneficial effect using the above scheme is: have it is at low cost, metal coating thickness is suitable, and not easily to fall off, performance is steady
Fixed, heating power it is big and can batch stable application the advantages of.
Further, the material of the pot ontology be the material of the pot ontology be aluminium, aluminium alloy, stainless steel (such as: no
Become rusty steel 304 etc.) or ceramics.
It includes electromagnetic induction coil and above-mentioned pot body, the electromagnetic induction line that the utility model, which also provides a kind of cooking apparatus,
Circle is oppositely arranged with coating.Electromagnetic induction coil can be electromagnetic induction coil.The cooking apparatus can be but be not limited to pot
Have, the cookware can be but be not limited to electric cooker, electric pressure cooking saucepan etc..
Beneficial effect using the above scheme is: have it is at low cost, metal coating thickness is suitable, and not easily to fall off, performance is steady
Fixed, heating power it is big and can batch stable application the advantages of.
Further, the electromagnetic induction coil is located at the painting toward the projected area that is projected as of the pot body, the projected area
In layer, and edge 0.8mm or more of the edges of regions of the projected area apart from the coating.
Using the above scheme have the beneficial effect that because cold spraying coating edge usually all not than relatively thin or consistency
It is enough, design in this way, it is ensured that the induction of cold spray layer is sufficiently generated heat.
Detailed description of the invention
Fig. 1 is the utility model cold spray system structural schematic diagram.
Fig. 2 is the operation schematic diagram that the utility model makes pot body using cold pressure spray process.
Fig. 3 be coating layer thickness described in the utility model on changed power influence as a result, label A represents power in Fig. 3
(220V) w, label B represent average coating thickness mm.
In attached drawing, parts list represented by the reference numerals are as follows:
1, high-pressure air source, 2, gas regulation control system, 3, powder feed system, 4, gun system, 41, preceding gas chamber, 42, powder feeding
Mouthful, 43, pressurized gas inlet, 44, nozzle, 5, powder recovery system, 6, gas temperature control system, 7, jet stream, 8, coating, 9,
Pot body.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
A kind of coating, the coating are made of cold spray process, coating with a thickness of 0.11-0.41mm.
A kind of preparation method of above-mentioned coating, comprising the following steps: pass through metal powder under the action of working gas
Cold pressure spray process applies the surface for being sprayed on structure to be sprayed.
The metal powder is selected from the mixing of one or both of iron powder, powder of stainless steel, copper powder, aluminium powder and silver powder.
The granularity of the metal powder is 1-50 microns.The speed of the metal powder is 620-700m/s.The metal
The powder sending quantity of powder is 50-280g/min.
The working gas is mixed selected from one or both of nitrogen, helium.
The temperature of working gas is 400-800 DEG C.The pressure of working gas is 2-4Mpa.Working gas flow is 3200-
3280L/min。
When cold spraying, spray gun movement speed is 300-600mm/s.Spray distance is 3-60mm.Spray time is 5-20s.
When carrying out cold spray process, cold spraying system can be used.As shown in Figure 1, cold spraying system includes: high pressure gas
Source 1, gas regulation control system 2, powder feed system 3, gun system 4, powder recovery system 5 and gas temperature control system 6.Institute
It states high-pressure air source 1, gas regulation control system 2, powder feed system 3, gun system 4 and powder recovery system 5 to be sequentially connected, in gas
Gas temperature control system 6 is also connected between body regulation and control system 2 and gun system 4.
Gas regulation control system 2 is for adjusting working gas dosage and pressure.Powder feed system 3 is used for metal powder is past
Gun system conveying.Gun system 4 is used to the metal powder after accelerating being sprayed onto pot body surface.Gas temperature control system 6 is used
In the temperature for adjusting working gas.Gas in high-pressure air source 1 leads to successively through gas regulation control system 2 and powder feed system 3
It crosses powder feed system 3 to enter in gun system, from gun system after working gas is mixed with metal powder in gun system
Nozzle sprays, and at jet stream, forms coating on the surface of pot body, extra metal powder is recycled by powder recovery system 5.
As shown in Fig. 2, gun system 4 includes preceding gas chamber 41 and nozzle 44, preceding gas chamber 41 is connected to the inside of nozzle 44.
Preceding gas chamber 41 is equipped with powder feeding mouth 42 and pressurized gas inlet 43；The powder feeding pipes of powder feeding mouth 42 and powder feed system 3, which export, to be connected, and is used
In being passed through metal powder, pressurized gas inlet 43 is for being passed through working gas.In gun system, metal powder is in powder feeding pipes
Exit is accelerated to the critical speed of metallic by working gas, sprays through nozzle 44 from the outlet of nozzle 44, forms jet stream
7, jet stream 7 forms coating 8 on the surface of the pot ontology of pot body 9.
The surface of pot ontology is arranged in a kind of pot body, including pot ontology and above-mentioned coating, the coating.The pot ontology
Material is aluminium, aluminium alloy, stainless steel or ceramics.
When prepared by pot body, pot body surface can be pre-processed in advance, such as: cleaning, sandblasting, degreasing,
Degreasing processing etc..
A kind of cooking apparatus, including electromagnetic induction coil and above-mentioned pot body, the electromagnetic induction coil and the coating phase
To setting.The electromagnetic induction coil is toward the projected area that is projected as of the pot body, and the projected area is located in the coating, and institute
Edge 0.8mm or more of the edges of regions of projected area apart from the coating is stated, to guarantee that the induction of cold spray layer is sufficiently generated heat.
It is specifically introduced below by some specific embodiments.
The utility model provides pot in magnetic conduction made of a kind of cold spray process, at low cost, magnetic conduction bed roughness
It is good, not easily to fall off, the advantages that electromagnetic parameter is stablized, and heating power is big.
Specific implementation is as follows:
Using cold spraying system, compressed air accelerates magnetic conductive metal powder to zero boundary's speed, sprays through nozzle, magnetic conductive metal
After attacking directly to aluminum pot external surface physical deformation occurs for powder.Magnetic conductive metal powder hits flat in aluminum pot external surface and securely attached
, one layer of good magnetic layer of compactness is formed, makes aluminum pot that there is magnetic property.
In the utility model, thickness refers to average thickness, and in each embodiment, the average thickness of coating is referred to: taking more
Several points measure thickness, then the average value of calculated thickness.
Embodiment 1
The surface of pot ontology is arranged in a kind of pot body, including pot ontology and coating, the coating.Pot ontology material be
Aluminium.
Using cold spraying system on pot ontology prepares coating, comprising the following steps:
Metal powder is iron powder, and the granularity of metal powder is 1-50 microns.The speed of the metal powder is 620-640m/
s。
Working gas is nitrogen.The heating temperature of working gas is 400-800 DEG C.The pressure of working gas is 2-4Mpa.
Working gas flow is 3200-3280L/min.Powder sending quantity is 50g/min.When cold spraying, spray gun movement speed is 300-
600mm/s.Spray distance is 3-60mm.Spray time is 5s.The coating with a thickness of 0.11mm.
Specific embodiment 1a parameter setting is as shown in table 1.
Table 1
| Project | Technological parameter |
| Dusty spray (granularity) | Iron powder (1 μm) |
| Gas | Nitrogen |
| Gas heating temperature | 400℃ |
| Pressure | 2Mpa |
| Gas flow | 3200L/min |
| Powder sending quantity | 50g/min |
| Spray gun movement speed | 300mm/s |
| Spray distance | 3mm |
| Powder particle speed | 620m/s |
| Spray time | 5s |
| Average coating thickness | 0.11mm |
Specific embodiment 1b parameter setting is as shown in table 2.
Table 2
| Project | Technological parameter |
| Dusty spray (granularity) | Iron powder (50 μm) |
| Gas | Nitrogen |
| Gas heating temperature | 800℃ |
| Pressure | 4Mpa |
| Gas flow | 3280L/min |
| Powder sending quantity | 50g/min |
| Spray gun movement speed | 600mm/s |
| Spray distance | 60mm |
| Powder particle speed | 640m/s |
| Spray time | 5s |
| Average coating thickness | 0.11mm |
Specific embodiment 1c parameter setting is as shown in table 3.
Table 3
Embodiment 2
The surface of pot ontology is arranged in a kind of pot body, including pot ontology and coating, the coating.Pot ontology material be
Aluminium.
Using cold spraying system on pot ontology prepares coating, comprising the following steps:
Metal powder is iron powder, and the granularity of metal powder is 1-50 microns.The speed of the metal powder is 620-640m/
s。
Working gas is nitrogen.The heating temperature of working gas is 400-800 DEG C.The pressure of working gas is 2-4Mpa.
Working gas flow is 3200-3280L/min.Powder sending quantity is 100g/min.When cold spraying, spray gun movement speed is 300-
600mm/s.Spray distance is 3-60mm.Spray time is 10s.The coating with a thickness of 0.21mm.
Specific embodiment 2a parameter setting is as shown in table 4.
Table 4
Specific embodiment 2b parameter setting is as shown in table 5.
Table 5
| Project | Technological parameter |
| Dusty spray (granularity) | Iron powder (50 μm) |
| Gas | Nitrogen |
| Gas heating temperature | 800℃ |
| Pressure | 4Mpa |
| Gas flow | 3280L/min |
| Powder sending quantity | 100g/min |
| Spray gun movement speed | 600mm/s |
| Spray distance | 60mm |
| Powder particle speed | 640m/s |
| Spray time | 10s |
| Average coating thickness | 0.21mm |
Specific embodiment 2c parameter setting is as shown in table 6.
Table 6
Embodiment 3
The surface of pot ontology is arranged in a kind of pot body, including pot ontology and coating, the coating.Pot ontology material be
Aluminium.
Using cold spraying system on pot ontology prepares coating, comprising the following steps:
Metal powder is iron powder, and the granularity of metal powder is 1-50 microns.The speed of the metal powder is 620-640m/
s。
Working gas is nitrogen.The heating temperature of working gas is 400-800 DEG C.The pressure of working gas is 2-4Mpa.
Working gas flow is 3200-3280L/min.Powder sending quantity is 200g/min.When cold spraying, spray gun movement speed is 300-
600mm/s.Spray distance is 3-60mm.Spray time is 15s.The coating with a thickness of 0.32mm.
Specific embodiment 3a parameter setting is as shown in table 7.
Table 7
Specific embodiment 3b parameter setting is as shown in table 8.
Table 8
| Project | Technological parameter |
| Dusty spray (granularity) | Iron powder (50 μm) |
| Gas | Nitrogen |
| Gas heating temperature | 800℃ |
| Pressure | 4Mpa |
| Gas flow | 3280L/min |
| Powder sending quantity | 200g/min |
| Spray gun movement speed | 600mm/s |
| Spray distance | 60mm |
| Powder particle speed | 640m/s |
| Spray time | 15s |
| Average coating thickness | 0.32mm |
Specific embodiment 3c parameter setting is as shown in table 9.
Table 9
| Project | Technological parameter |
| Dusty spray (granularity) | Iron powder (30 μm) |
| Gas | Nitrogen |
| Gas heating temperature | 500℃ |
| Pressure | 3Mpa |
| Gas flow | 3250L/min |
| Powder sending quantity | 200g/min |
| Spray gun movement speed | 500mm/s |
| Spray distance | 20mm |
| Powder particle speed | 630m/s |
| Spray time | 15s |
| Average coating thickness | 0.32mm |
Embodiment 4
The surface of pot ontology is arranged in a kind of pot body, including pot ontology and coating, the coating.Pot ontology material be
Aluminium.
Using cold spraying system on pot ontology prepares coating, comprising the following steps:
Metal powder is iron powder, and the granularity of metal powder is 1-50 microns.The speed of the metal powder is 620-640m/
s。
Working gas is nitrogen.The heating temperature of working gas is 400-800 DEG C.The pressure of working gas is 2-4Mpa.
Working gas flow is 3200-3280L/min.Powder sending quantity is 280g/min.When cold spraying, spray gun movement speed is 300-
600mm/s.Spray distance is 3-60mm.Spray time is 20s.The coating with a thickness of 0.41mm.
Specific embodiment 4a parameter setting is as shown in table 10.
Table 10
| Project | Technological parameter |
| Dusty spray (granularity) | Iron powder (1 μm) |
| Gas | Nitrogen |
| Gas heating temperature | 400℃ |
| Pressure | 2Mpa |
| Gas flow | 3200L/min |
| Powder sending quantity | 280g/min |
| Spray gun movement speed | 300mm/s |
| Spray distance | 3mm |
| Powder particle speed | 620m/s |
| Spray time | 20s |
| Average coating thickness | 0.41mm |
Specific embodiment 4b parameter setting is as shown in table 11.
Table 11
Specific embodiment 4c parameter setting is as shown in table 12.
Table 12
| Project | Technological parameter |
| Dusty spray (granularity) | Iron powder (20 μm) |
| Gas | Nitrogen |
| Gas heating temperature | 500℃ |
| Pressure | 3Mpa |
| Gas flow | 3250L/min |
| Powder sending quantity | 280g/min |
| Spray gun movement speed | 400mm/s |
| Spray distance | 40mm |
| Powder particle speed | 630m/s |
| Spray time | 20s |
| Average coating thickness | 0.41mm |
13 and Fig. 3 are shown in Table to pot test result in the cold spray of different film thickness using power instrument (voltage is 220V).
Table 13
Conclusion: coating average film thickness be lower than 0.21mm when, with film thickness increase power increase, film thickness be greater than 0.41mm
When, with film thickness increase that changed power is little, but roughness and cost but increase much, so it is optimal with a thickness of
0.21mm or so.
The test data of cold spray process and hot-spraying technique is shown in Table 14, and in table 14, pot uses electric arc spraying in thermal spraying
Method spraying.
Table 14
As can be seen from the above data, the utility model strict control cold spray process parameter make made of in magnetic conduction
Pot, has at low cost, and metal coating thickness is suitable, not easily to fall off, and electromagnetic parameter is stablized, and heating power is big, stable in batches can answer
With.
Embodiment 5
The surface of pot ontology is arranged in a kind of pot body, including pot ontology and coating, the coating.Pot ontology material be
Aluminium.
Using cold spraying system on pot ontology prepares coating, comprising the following steps:
Metal powder is aluminium powder, and the granularity of metal powder is 1-50 microns.The speed of the metal powder is 680-700m/
s。
Working gas is nitrogen.The heating temperature of working gas is 400-800 DEG C.The pressure of working gas is 2-4Mpa.
Working gas flow is 3200-3280L/min.Powder sending quantity is 50-280g/min.When cold spraying, spray gun movement speed is 300-
600mm/s.Spray distance is 3-60mm.Spray time is 5-20s.The coating with a thickness of 0.11-0.41mm.
Specific parameter setting is as shown in Table 15.
Table 15
This wear-resistant coating is middle layer, usually adds spray fluoro coatings not snearing on wear-resistant coating surface when specifically used
Layer, comparison plus spray wear-resistant coating are with wear-resistant coating test result, the result of the pot body performance detection of above method preparation is not sprayed
It is as follows.Wear-resisting property are as follows: 8000 times not show-through (increasing intermediate wear-resistant coating), 3000 times show-through (not spraying intermediate wear-resistant coating),
Porosity is 0.1%.And there are wear-resistant coating porositys that big, coating is unevenly asked for the aluminized coating prepared using thermal spraying mode
Topic.
Metal powder when using 304 stainless steel powders as cold spraying, using the parameter and method system in table 17
Standby pot body.Wear-resisting property are as follows: 9000 times not show-through (increasing intermediate wear-resistant coating), porosity 0.1%.And use thermal spraying side
There are wear-resistant coating porositys for 304 stainless steel coatings of formula preparation greatly, coating problem of non-uniform.
Metal powder when using 316 stainless steel powders as cold spraying, using the parameter and method system in table 17
Standby pot body.Wear-resisting property are as follows: 10000 times not show-through (increasing intermediate wear-resistant coating), porosity 0.1%.And use thermal spraying
316 stainless steel coatings prepared by mode there are wear-resistant coating porositys it is big, coating is uneven the problems such as.
Remarks:
Abrasion resistance test method: the washing water for being 5% with dish washing liquid configuration concentration, 3M (7447C) scouring pad, weight bearing
2.5kgf swings as 1 stroke, every 250 strokes, replaces scouring pad, and every 250 strokes check whether coating has dew
Substrate (non-filling type: to expose >=10 lines as termination test out；Filled-type: using flaking as termination test), record
Coating exposes substrate number.
Embodiment 6
The surface of pot ontology is arranged in a kind of pot body, including pot ontology and coating, the coating.Pot ontology material be
Aluminium.
Using cold spraying system on pot ontology prepares coating, comprising the following steps:
Metal powder is silver powder, and the granularity of metal powder is 1-50 microns.The speed of the metal powder is 620-640m/
s。
Working gas is nitrogen.The heating temperature of working gas is 400-800 DEG C.The pressure of working gas is 2-4Mpa.
Working gas flow is 3200-3280L/min.Powder sending quantity is 50-280g/min.When cold spraying, spray gun movement speed is 300-
600mm/s.Spray distance is 3-60mm.Spray time is 5-20s.The coating with a thickness of 0.11-0.41mm.
Specific parameter setting is as shown in table 16.
Table 16
| Project | Technological parameter |
| Dusty spray (granularity) | Silver powder (2 μm) |
| Gas | Nitrogen |
| Gas heating temperature | 400℃ |
| Pressure | 2Mpa |
| Gas flow | 3200L/min |
| Powder sending quantity | 280g/min |
| Spray gun movement speed | 300mm/s |
| Spray distance | 3mm |
| Powder particle speed | 680m/s |
| Spray time | 20s |
| Average coating thickness | 0.41mm |
The result of the pot body performance detection of above method preparation is as follows.The antimicrobial efficiency of coating is 99.80-
99.70%, porosity 0.1%.And the anti-microbial property for the pot body with silver coating for using thermal spraying mode to prepare for
99.40-99.20%, porosity 3%.It can be illustrated by above-mentioned data, the pot with silver coating prepared using cold spraying
Body has many advantages, such as that antibiotic layer is uniform, good anti-bacterial effect.
Cold spray anti-microbial property is as shown in table 17.
Table 17
Thermal jet anti-microbial property is as shown in table 18.
Table 18
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (4)
1. a kind of cooking apparatus, which is characterized in that including electromagnetic induction coil and pot body, the pot body includes pot ontology and painting
Layer, the surface of pot ontology is arranged in coating, and the coating is made of cold spray process, coating with a thickness of 0.11-0.41mm, institute
Electromagnetic induction coil is stated to be oppositely arranged with the coating.
2. a kind of cooking apparatus according to claim 1, which is characterized in that the granularity of metal powder is 1-50 in the coating
Micron.
3. a kind of cooking apparatus according to claim 1 or claim 2, which is characterized in that the material of the pot ontology is aluminium, aluminium conjunction
Gold, stainless steel or ceramics.
4. a kind of cooking apparatus according to claim 1 or claim 2, which is characterized in that the electromagnetic induction coil is toward the pot body
Be projected as projected area, the projected area is located in the coating, and the edges of regions of the projected area is apart from the coating
Edge 0.8mm or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621253370.7U CN209039584U (en) | 2016-11-22 | 2016-11-22 | A kind of cooking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621253370.7U CN209039584U (en) | 2016-11-22 | 2016-11-22 | A kind of cooking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209039584U true CN209039584U (en) | 2019-06-28 |
Family
ID=67027239
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621253370.7U Active CN209039584U (en) | 2016-11-22 | 2016-11-22 | A kind of cooking apparatus |
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| CN (1) | CN209039584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112877684A (en) * | 2021-01-12 | 2021-06-01 | 江西省科学院应用物理研究所 | Cu alloy magnetic conductive coating and preparation method thereof |
-
2016
- 2016-11-22 CN CN201621253370.7U patent/CN209039584U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112877684A (en) * | 2021-01-12 | 2021-06-01 | 江西省科学院应用物理研究所 | Cu alloy magnetic conductive coating and preparation method thereof |
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