CN108728842A - A kind of cooking apparatus and preparation method thereof - Google Patents
A kind of cooking apparatus and preparation method thereof Download PDFInfo
- Publication number
- CN108728842A CN108728842A CN201710271245.1A CN201710271245A CN108728842A CN 108728842 A CN108728842 A CN 108728842A CN 201710271245 A CN201710271245 A CN 201710271245A CN 108728842 A CN108728842 A CN 108728842A
- Authority
- CN
- China
- Prior art keywords
- cooking apparatus
- layer
- titanium
- preparation
- base material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010411 cooking Methods 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 76
- 239000010936 titanium Substances 0.000 claims abstract description 73
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 73
- 239000000843 powder Substances 0.000 claims abstract description 62
- 238000010288 cold spraying Methods 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 48
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 230000009471 action Effects 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 60
- 239000011248 coating agent Substances 0.000 claims description 40
- 238000000576 coating method Methods 0.000 claims description 40
- 239000007924 injection Substances 0.000 claims description 21
- 238000002347 injection Methods 0.000 claims description 21
- 229910001220 stainless steel Inorganic materials 0.000 claims description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 239000010935 stainless steel Substances 0.000 claims description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims description 8
- 239000001307 helium Substances 0.000 claims description 8
- 229910052734 helium Inorganic materials 0.000 claims description 8
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 7
- 238000005422 blasting Methods 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 26
- 230000007797 corrosion Effects 0.000 abstract description 25
- 230000008901 benefit Effects 0.000 abstract description 9
- 230000008646 thermal stress Effects 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 4
- 239000000470 constituent Substances 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 116
- 238000000034 method Methods 0.000 description 37
- 239000007921 spray Substances 0.000 description 33
- 239000002131 composite material Substances 0.000 description 19
- 230000000694 effects Effects 0.000 description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 239000003570 air Substances 0.000 description 14
- 238000000151 deposition Methods 0.000 description 14
- 230000008021 deposition Effects 0.000 description 14
- 230000008569 process Effects 0.000 description 14
- 238000005507 spraying Methods 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- 230000007423 decrease Effects 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 239000010965 430 stainless steel Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 6
- 238000005238 degreasing Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 5
- 238000005498 polishing Methods 0.000 description 5
- 241000209094 Oryza Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 238000007751 thermal spraying Methods 0.000 description 4
- 238000001771 vacuum deposition Methods 0.000 description 4
- 239000010963 304 stainless steel Substances 0.000 description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
Classifications
-
- 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/082—Coating starting from inorganic powder by application of heat or pressure and heat without intermediate formation of a liquid in the layer
- C23C24/085—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
-
- 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
- A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
A kind of cooking apparatus of present invention offer and preparation method thereof.A kind of cooking apparatus, including base material and cold spraying are in the titanium layer of substrate outer surface.In the preparation, by titanium valve or titanium alloy powder by under the action of working gas cold spraying so that the outer surface of base material is formed titanium layer in the outer surface of base material.Cooking apparatus of the present invention and preparation method thereof has many advantages, such as that corrosion resistance and good, abrasion resistance properties are good, electromagnetic heating performance is good, structural constituent is single, heat affected area and thermal stress are small, binding force is strong, internal flaw is few, thickness is suitable and at low cost.
Description
Technical field
The invention belongs to coating technology fields more particularly to a kind of cooking apparatus and preparation method thereof.
Background technology
It is more and more using electromagnetic heating electric rice cooker and electric pressure cooking saucepan accounting, since electromagnetic heating needs material to have well
Magnetic conductivity, therefore it is 430 stainless steels (iron) that general composite pot tool, which all selects outer layer, and aluminium conjunction then according to circumstances may be selected in internal layer
Metal materials such as gold, stainless steel, titanium alloy, but the environment used due to cookware is high temperature and humidity, at the same often movement and occur
Friction, 430 stainless steels (iron) corrosion resistance is relatively poor, can usually influence to use there is a situation where corroding and wearing.
Invention content
In view of the problems of prior art, a kind of cooking apparatus of present invention offer and preparation method thereof has corrosion resistant
Corrosion energy is good, abrasion resistance properties are good, electromagnetic heating performance is good, structural constituent is single, heat affected area and thermal stress are small, binding force
By force, internal flaw is few, thickness is suitable and it is at low cost the advantages that.
The technical solution that the present invention solves above-mentioned technical problem is as follows：
A kind of cooking apparatus, including base material and cold spraying are in the titanium layer of substrate outer surface.
The beneficial effects of the invention are as follows：
Cooking apparatus of the present invention, with corrosion resistance and good, abrasion resistance properties are good, electromagnetic heating performance is good, group
The advantages that being made into that point single, heat affected area and thermal stress are small, binding force is strong, internal flaw is few, thickness is suitable and be at low cost.
The titanium layer that substrate outer surface is equipped with is conducive to improve corrosion resistance and abrasion resistance properties.
The titanium layer of the present invention is prepared by cold spraying, and compared with thermal spraying, cold spraying is notable because of dusty spray heating temperature
Less than thermal spraying, the material of spraying can keep not aoxidizing substantially, to ensure that entire coating has good performance, can lead to
Cross the technological parameters such as the air pressure of preheating temperature, spray gun for strictly controlling its gas, it is ensured that its powder deposition rate sprayed
Soon, deposition efficiency is high, and Powder Oxidation degree is low, ensures that coating has that single structural constituent, heat affected area and thermal stress are small, combine
The features such as power is strong, internal flaw is few.
The present invention has coating layer thickness properly and at low cost etc. by the way of cold spraying rather than the mode of vacuum coating
Advantage.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the thickness of the titanium layer is 20-40 microns.
Advantageous effect using above-mentioned further scheme is：
In the prior art, generally using vacuum coating in 430 stainless steels (iron) ti coat on diamond and titanium compound film, but it is this
Technique make thicknesses of layers it is all very thin, only 1.0um hereinafter, and equipment acquisition cost and manufacturing cost it is all higher.This
Invention can be by the thickness control of titanium layer at 20-40 microns by the way of cold spraying, and the titanium layer of the thickness range is conducive to carry
The compactness of high cookware, to promote corrosion-resistant and wear-resisting property, if thickness is excessively high, cookware cost can be very high.If thickness
Too small, the compactness of titanium layer can not ensure and the consistency of thickness of coating can not ensure, be easy to cause corrosion-resistant and wear-resisting property
Decline.
Further, the porosity of the titanium layer is 0.05-0.20%.
Advantageous effect using above-mentioned further scheme is：Have the advantages that high-densit, binding force is strong, not easily to fall off, it should
The porosity of range has the advantages that improve titanium layer binding force, heating efficiency, corrosion-resistant and wear resistance, less than this model
The problem of enclosing, technical process performance difficulty can be caused；Higher than this range, titanium layer binding force and heating power can be caused to decline
Problem.
Further, the base material includes internal layer and outer layer, and outer layer is arranged in the outside of internal layer, and titanium layer is arranged in the outer of outer layer
Surface；The internal layer is metal layer, and the outer layer is the coating with magnetic conduction and corrosion resistance.
Further, the outer layer is stainless steel layer.
Further, the cladding material is 430 stainless steels.
Advantageous effect using the above scheme is：The anti-corrosion and wear-resisting property for acting as improving cookware of internal layer；Outer layer choosing
Stainless steel especially 430 stainless steel layers are selected electromagnetic heating not only may be implemented but also there is the good efficiency of heating surface.
Further, the internal layer is selected from one or more of aluminium alloy layer, stainless steel layer, copper alloy layer and titanium alloy layer
It is compound.
Further, the thickness of the outer layer is 0.1-1.0mm.
Advantageous effect using above-mentioned further scheme is：Suitable thickness is conducive to electromagnetic heating and accumulation of heat.
Further, the internal layer is selected from one or more of aluminium alloy layer, stainless steel layer, copper alloy layer and titanium alloy layer
It is compound.
Further, the thickness of the internal layer is 0.5-4.0mm.
Advantageous effect using above-mentioned further scheme is：Suitable thickness is conducive to be evenly heated.
Further, the inner surface of the base material is additionally provided with non-sticking lining.
Advantageous effect using above-mentioned further scheme is：Improve non-adhesion behavior.
Further, the cooking apparatus is cookware or cooker.The cookware or cooker can be but be not limited to electric cooker and
Electric pressure cooking saucepan etc..The base material of cookware can be that single layer may be composite layer.
Further, the cooking apparatus further includes the heating component for being heated to base material.When base material is with magnetic conductivity
When the base material of energy, the heating component can be electromagnetic heating component, such as coil panel.When base material is the base material of no magnetic property
When, heating component can be heat-generating disc.
The present invention also provides a kind of preparation methods of above-mentioned cooking apparatus, include the following steps：By titanium valve or Titanium Powder
End by under the action of working gas cold spraying so that the outer surface of base material is formed titanium layer in the outer surface of base material.
Advantageous effect using the above scheme：
The present invention prepares titanium layer using cold spraying, and compared with thermal spraying, cold spraying is significantly low because of dusty spray heating temperature
In thermal spraying, the material of spraying can keep not aoxidizing substantially, to ensure that entire coating has good performance, can pass through
Strictly control the technological parameters such as the preheating temperature of its gas, the air pressure of spray gun, it is ensured that powder deposition rate that it is sprayed is fast,
Deposition efficiency is high, and Powder Oxidation degree is low, ensures that coating has single structural constituent, heat affected area and thermal stress is small, binding force
By force, the features such as internal flaw is few.
The present invention has coating layer thickness properly and at low cost etc. by the way of cold spraying rather than the mode of vacuum coating
Advantage.
Further, the working gas is selected from the mixing of one or more of air, helium and nitrogen.
Advantageous effect using the above scheme is：Cost is advantageously reduced using above-mentioned gas, while avoiding above-mentioned gas
It reacts with metal, avoids the performance for influencing coating.
Further, when cold spraying, injection pressure is 1-3.5MPa.
Advantageous effect using the above scheme is：
Coating of good performance is advantageously formed using above-mentioned pressure, pressure can improve spraying grain in a certain range
The speed of son and the anchoring strength of coating that makes is high, porosity is made to reduce, 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, when cold spraying, injection temperation is 400-600 DEG C.
Be conducive to obtain comparatively dense coating using above-mentioned temperature, if temperature is excessively high, particle fusing can be caused to bond
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 can increase, and being mingled with can also increase.
Further, the flow velocity of working gas is 1-2m3/min.It is i.e. per minute to pass through 1-2m3Working gas.
Advantageous effect using the above scheme is：Suitable working gas speed be conducive to obtain suitable deposition rate and
It prevents metal from being aoxidized, if speed is too low, it is low to be easy to cause deposition rate, it is also possible to which metal is aoxidized；If speed mistake
Height, it is excessive to be easy to cause air pressure, and to which powder rebound can be caused to reduce deposition rate instead, face coat is coarse.
Further, the conveying capacity of titanium valve or titanium alloy powder is 5-15kg/h.
Advantageous effect using the above scheme is：The conveying speed of suitable titanium valve or titanium alloy powder advantageously ensures that conjunction
Suitable coating compactness and suitable coating deposition efficiency, if the too low coating deposition efficiency that is easy to cause of conveying speed is low,
If conveying speed is excessively high be easy to cause compactness it is poor, in conjunction with the problems such as force difference.
Further, jet length 10-50mm.
Advantageous effect using the above scheme is：Be conducive to obtain suitable deposition rate using above-mentioned distance, if away from
From excessive, it is easy to cause deposition rate decline, if being easy to cause powder rebound apart from too small and declining so as to cause deposition rate.
Further, consumption power is 15-55kW.
It is using the advantageous effect of above-mentioned technical proposal：Using above-mentioned consumption power, be conducive to carry out working gas
Effectively heating, hot protective gas can carry out good preheating to powder, reach suitable spraying temperature, if consumption work(
Rate is excessively high, and gas temperature can be caused excessively high, is easy to cause damage problem to the sealing ring etc. of nozzle；If it is too low to consume power,
The heating temperature of protective gas can be caused relatively low, the problems such as powder preheating temperature is insufficient, and titanium layer binding force is poor.
Further, the granularity of titanium valve or titanium alloy powder is 1-50 microns.
Advantageous effect using the above scheme is：Be conducive to obtain fine and close coating using above-mentioned granularity, if granularity
Too small, powder particle is easy fusing and bonds；If granularity is excessive, particulate plastic deformation is small, and film layer porosity is high.
Further, surface to be sprayed to base material before cold spraying carries out blasting treatment and oil removing ungrease treatment.
Advantageous effect using above-mentioned further scheme is：Be conducive to improve the binding ability of coating and base material.
Further, after cold spraying, further include titanium layer is polished or turning processing.
Advantageous effect using above-mentioned further scheme is：Above-mentioned processing is taken to be conducive to the smooth table that surface obtains minute surface
Face further promotes corrosion resistance.
Description of the drawings
Fig. 1 is cold spray system structural schematic diagram of the present invention.
Fig. 2 is the operating diagram that the present invention makes pot body using cold pressure spray process.
Fig. 3 is the sectional view of the cooking apparatus of the present invention.
Fig. 4 is the enlarged drawing of the sectional view of the cooking apparatus of the present invention.
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, titanium layer, 9,
Cooking apparatus, 10, non-sticking lining, 11, internal layer, 12, outer layer, 13, coil panel.
Specific implementation mode
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As shown in Figure 3 and Figure 4, a kind of cooking apparatus, including base material and cold spraying are in the titanium layer of substrate outer surface；The base
Material includes internal layer 11 and outer layer 12, and outer layer 12 is arranged in the outside of internal layer 11, and titanium layer 8 is arranged in the outer surface of outer layer 12；It is described
Internal layer 11 is metal layer, and the outer layer 12 is the coating with magnetic conduction and corrosion resistance, can be stainless steel layer.
The thickness of the titanium layer 8 is 20-40 microns.The porosity of the titanium layer 8 is 0.05-0.20%.
The outer layer 12 is 430 stainless steel layers.The thickness of the outer layer 12 is 0.1-1.0mm.
The internal layer 11 is selected from answering for one or more of aluminium alloy layer, stainless steel layer, copper alloy layer and titanium alloy layer
It closes.The thickness of the internal layer 11 is 0.5-4.0mm.
In order to improve non-adhesion behavior, non-sticking lining 10 is additionally provided in the inner surface of internal layer 11.
The cooking apparatus is cookware or cooker.
The cooking apparatus further includes the heating component for being heated to base material.When specifically used, heating component can be with
For coil panel 13, it is used to heat base material.
Cold spraying (CS：Cold Spray), also known as aerodynamic force spraying technology refers to when the high speed with certain plasticity
With after matrix collision the method that deposition forms magnetic conduction coating occurs by strong plastic deformation for solid particles.Usual conditions
Under, general concept is will to generate solid particles after solid particles collides certain matrix to act on the erosion of matrix.
When carrying out cold spray process, cold spraying system may be used.Fig. 1 and Fig. 2 illustrates one of which and can be used for
The system of cold spraying.As shown in Figure 1, cold spraying system includes：High-pressure air source 1, gas regulation control system 2, powder feed system 3,
Gun system 4, powder recovery system 5 and gas temperature control system 6.The high-pressure air source 1, is sent gas regulation control system 2
Powder system 3, gun system 4 and powder recovery system 5 are sequentially connected, between gas regulation control system 2 and gun system 4 also
It is connected with gas temperature control system 6.
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 conveys.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.Working gas in high-pressure air source 1, successively through gas regulation control system 2 and powder feed system
3, it is entered in gun system by powder feed system 3, from spray gun system after working gas is mixed with metal powder in gun system
The nozzle of system sprays, and at jet stream, forms coating on the surface of pot body, extra metal powder is carried out by powder recovery system 5
Recycling.
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.Before
Gas chamber 41 is equipped with powder feeding mouth 42 and pressurized gas inlet 43；Powder feeding mouth 42 and the powder feeding pipes outlet connection of powder feed system 3 are used for
It is passed through metal powder, pressurized gas inlet 43 is for being passed through working gas.Metal powder is in powder feeding pipes exit by work gas
Body accelerates to the critical speed of metallic, is sprayed from the outlet of nozzle 44 through nozzle 44, forms jet stream 7, jet stream 7 is in cooking pot
The surface of the base material of tool 9 forms titanium layer 8.
The present invention also provides a kind of preparation methods of above-mentioned cooking apparatus, include the following steps：By titanium valve or Titanium Powder
End by under the action of working gas cold spraying so that the outer surface of base material is formed titanium layer in the outer surface of base material.
The working gas is selected from the mixing of one or more of air, helium and nitrogen.The flow velocity of working gas is
1-2m3/min.Consumption power is 15-55kW.The consumption power refers to the consumption power of cold spraying system.
The granularity of titanium valve or titanium alloy powder is 1-50 microns.The conveying capacity of titanium valve or titanium alloy powder is 5-15kg/h.
Jet length is 10-50mm.
When cold spraying, injection pressure is 1-3.5MPa, and injection temperation is 400-600 DEG C.
In order to further increase the binding ability of titanium layer and base material, the surface to be sprayed to base material is sprayed before cold spraying
Sand processing and oil removing ungrease treatment.
After cold spraying, further include titanium layer is polished or turning processing.
Composite pot tool of the present invention and preparation method thereof both has good electromagnetic heating performance, while having excellent
Different corrosion-resistant and anti abrasive performance.
The technological parameter of cold spraying mainly include working gas, injection pressure, injection temperation, powder feeding rate, jet length,
Powder diameter etc..Binding force, coating composition unicity and structural homogenity, structure of these technological parameters to its coating and matrix
Compactness, surface roughness etc. have a significant impact.
Cookware or cooker cold spraying provided by the invention prepares the technique of magnetisable coating, by strictly controlling cold spray technique
Technological parameter, such as injection temperation, spray pressure, jet length, material particle size can be non magnetic (such as aluminium alloy) or weak
Magnetic material (such as 304 stainless steels) cookware appearance bottom sprays the magnetic conductivity coating of one layer of mechanics and good physical properties, ensures
The good electromagnetic heating effect of cookware.
It is introduced below by some specific embodiments.
Embodiment 1
A method of composite pot tool is prepared, is included the following steps：
(1) base material pre-processes：
(or not selecting) may be selected, blasting treatment is carried out to cookware or cooker base material surface to be sprayed.To cookware outer surface
The impurity such as greasy dirt carry out oil removing degreasing (such as sodium hydroxide solution) processing；
(2) high pressure cold spraying prepares titanium layer：
Using cold spraying by fine-powders such as titaniums, under the auxiliary of high-speed flow with higher kinetic energy high speed spray to it is to be sprayed
Cookware.By strictly controlling the technological parameter of cold spraying, one layer of certain thickness titanium or titanium alloy coating is prepared.
The specific process parameter that cold spraying prepares titanium layer is：
Working gas：Air, helium, nitrogen or mixed gas etc.；
Spray pressure 1.0MPa；
400 DEG C of injection temperation；
Working gas flow velocity 1.0m3/min；
Powder conveying capacity 5kg/h；
Jet length 10mm；
Consume power 15kW；
10-20 μm of powder size；
(3) polishing or turning processing.
(4) finally, titanium layer thickness control is in 20um.
The composite pot tool prepared by the above method, is followed successively by from outside to inside：Titanium layer 20um/430 stainless steel layers 0.1mm/
Aluminium alloy layer 2.0mm/ non-sticking linings 30um.
By the above method prepare composite pot tool heating properties are excellent and fine corrosion resistance, stable electrical properties.
Embodiment 2
A method of composite pot tool is prepared, is included the following steps：
(1) base material pre-processes：
(or not selecting) may be selected, blasting treatment is carried out to cookware or cooker base material surface to be sprayed.To cookware outer surface
The impurity such as greasy dirt carry out oil removing degreasing (such as sodium hydroxide solution) processing；
(2) high pressure cold spraying prepares titanium layer：
Using cold spraying by fine-powders such as titaniums, under the auxiliary of high-speed flow with higher kinetic energy high speed spray to it is to be sprayed
Cookware.By strictly controlling the technological parameter of spraying, one layer of certain thickness titanium or titanium alloy coating is prepared.
The specific process parameter that cold spraying prepares titanium layer is：
Working gas：Air, helium, nitrogen or mixed gas etc.；
Spray pressure 2.3MPa；
500 DEG C of injection temperation；
Working gas flow velocity 1.5m3/min；
Powder conveying capacity 10kg/h；
Jet length 20mm；
Consume power 30kW；
20-30 μm of powder size；
(3) polishing or turning processing.
(4) finally, titanium layer thickness control is in 25um.
The composite pot tool prepared by the above method, is followed successively by from outside to inside:Titanium layer 25um/430 stainless steels 0.3mm/304
Stainless steel 2.0mm.
By the above method prepare composite pot tool heating properties are excellent and fine corrosion resistance, stable electrical properties.
Embodiment 3
A method of composite pot tool is prepared, is included the following steps：
(1) base material pre-processes：
(or not selecting) may be selected, blasting treatment is carried out to cookware or cooker base material surface to be sprayed.To cookware outer surface
The impurity such as greasy dirt carry out oil removing degreasing (such as sodium hydroxide solution) processing.
(2) high pressure cold spraying prepares titanium layer：
Using cold spraying by fine-powders such as titaniums, under the auxiliary of high-speed flow with higher kinetic energy high speed spray to it is to be sprayed
Cookware.By strictly controlling the technological parameter of spraying, one layer of certain thickness titanium or titanium alloy coating is prepared.
The specific process parameter that cold spraying prepares titanium layer is：
Working gas：Air, helium, nitrogen or mixed gas etc.；
Spray pressure 3.5MPa；
600 DEG C of injection temperation；
Working gas flow velocity 2.0m3/min；
Powder conveying capacity 15kg/h；
Jet length 40mm；
Consume power 55kW；
30-40 μm of powder size；
(3) polishing or turning processing, titanium layer thickness control is in 30um.
The composite pot tool prepared by the above method, is followed successively by from outside to inside:Titanium layer 30um/430 stainless steel layers 0.3mm/
Copper alloy layer 1.0mm/304 stainless steel layers 2.0mm.
By the above method prepare composite pot tool heating properties are excellent and fine corrosion resistance, stable electrical properties.
Embodiment 4
A method of composite pot tool is prepared, is included the following steps：
(1) base material pre-processes：
(or not selecting) may be selected, blasting treatment is carried out to cookware or cooker base material surface to be sprayed.To cookware outer surface
The impurity such as greasy dirt carry out oil removing degreasing (such as sodium hydroxide solution) processing.
(2) high pressure cold spraying prepares titanium layer：
Using cold spraying by fine-powders such as titaniums, under the auxiliary of high-speed flow with higher kinetic energy high speed spray to it is to be sprayed
Cookware.By strictly controlling the technological parameter of spraying, one layer of certain thickness titanium or titanium alloy coating is prepared.
The specific process parameter that cold spraying prepares titanium layer is：
Working gas：Air, helium, nitrogen or mixed gas etc.；
Spray pressure 3.5MPa；
600 DEG C of injection temperation；
Working gas flow velocity 2.0m3/min；
Powder conveying capacity 15kg/h；
Jet length 50mm；
Consume power 55kW；
40-50 μm of powder size；
(3) polishing or turning processing, titanium layer thickness control is in 40um.
The composite pot tool of preparation
The composite pot tool prepared by the above method, is followed successively by from outside to inside：Titanium layer 40um/430 stainless steel layers 0.3mm/
Copper alloy layer 1.0mm/ aluminium alloys 2.0mm.
By the above method prepare composite pot tool heating properties are excellent and fine corrosion resistance, stable electrical properties.
Embodiment 5
A method of composite pot tool is prepared, is included the following steps：
(1) base material pre-processes：
(or not selecting) may be selected, blasting treatment is carried out to cookware or cooker base material surface to be sprayed.To cookware outer surface
The impurity such as greasy dirt carry out oil removing degreasing (such as sodium hydroxide solution) processing.
(2) high pressure cold spraying prepares titanium layer：
Using cold spraying by fine-powders such as titaniums, under the auxiliary of high-speed flow with higher kinetic energy high speed spray to it is to be sprayed
Cookware.By strictly controlling the technological parameter of spraying, one layer of certain thickness titanium or titanium alloy coating is prepared.
The specific process parameter that cold spraying prepares titanium layer is：
Working gas：Air, helium, nitrogen or mixed gas etc.；
Spray pressure 3.5MPa；
600 DEG C of injection temperation；
Working gas flow velocity 2.0m3/min；
Powder conveying capacity 15kg/h；
Jet length 30mm；
Consume power 15kW；
40-50 μm of powder size；
(3) polishing or turning processing, titanium layer thickness control is in 15um.
The composite pot tool prepared by the above method, is followed successively by from outside to inside：Titanium layer 15um/430 stainless steel layers 0.3mm/
Copper alloy layer 1.0mm/304 stainless steel layers 2.0mm.
By the above method prepare composite pot tool heating properties are excellent and fine corrosion resistance, stable electrical properties.
Cookware made from embodiment 1 to embodiment 5 can be as the interior pot of electric cooker.Embodiment 1 to embodiment 5 performance
As shown in table 1.
Table 1
Neutral salt spray test concrete operation method is referred to national standard:GB/T2423.17-93 neutral salt spray test marks
Accurate (NSS).H wherein in table 1 is writing a Chinese character in simplified form for hour.
Efficiency grade is according to GB 12021.6-2008 automatic electric rice cookers energy efficiency markets and efficiency grade.For in metal
Pot class automatic electric rice cooker, energy efficiency market are 4 grades of efficiency grade.1 grade to 4 grades all complies with standard, wherein 1 grade best.
As can be seen from the above data, the cookware that prepared by the present invention has heating properties, corrosion resistance, and has electricity
The advantage that performance is stablized.
The cookware done at present using vacuum coating and using hot-spraying technique is the surface coating TiN in 430 stainless steels,
The thickness of TiN is generally 0.2-1.0um, and the testing result of neutral salt spray is only capable of passing through 24H.Embodiment 1 to embodiment 5 neutrality
The testing result of salt fog can be significantly better than the cookware of existing method preparation by 48H, performance.Wherein, the present invention is implemented
Cookware neutral salt spray test prepared by example 1-4 can pass through 96H, the unexpected pot prepared better than existing method of performance
Tool.Embodiment 5 is since titanium layer is more thinner than the thickness of the titanium layer of embodiment 1-4, so the time of the testing result of neutral salt spray
It is shorter, but also obviously due to the performance of cookware in the prior art.
It is 1-10 microns that inventor has adjusted titanium powder granularity on the basis of embodiment 1, and the thickness of 430 stainless steels is
The thickness of 1.0mm, aluminium alloy are 4.0mm, remaining is same as Example 1, can also obtain conclusion similar to Example 1.
On the basis of embodiment 1 different titanium layer thickness has been set separately, remaining is same as Example 1 in inventor.
The thickness of titanium layer is respectively that 5 microns, 10 microns, 15 microns, 25 microns, 30 microns, 35 microns, 40 microns, 45 microns and 50 are micro-
Rice, by the study found that the thickness setting of titanium layer is best in 20-40 microns of performances, if being less than 20 microns, under corrosion resistance
Drop, is susceptible to the problem of salt spray test result does not pass through；If being higher than 40 microns, cost increases.
On the basis of embodiment 1 different injection pressure has been set separately, remaining is same as Example 1 in inventor.
It is respectively 0.5MPa, 0.8MPa, 1.5MPa, 2MPa, 2.5MPa, 3MPa, 3.5MPa, 4MPa and 4.5MPa to spray pressure, is passed through
The study found that be arranged the cookware performance prepared in 1-3.5Mpa best for injection pressure, if less than 1Mpa, the compactness of coating and
Deposition rate declines, and the corrosion resistance of coating can decline；If being higher than 3.5Mpa, the compactness and adhesive force of coating decline, and hold
Easily there is the problem of coating cannot be declined by thermal shock and corrosion resistance.
Different injection temperations has been set separately on the basis of embodiment 1 in inventor, remaining is same as Example 1.
Injection temperation is respectively 300 DEG C, 350 DEG C, 450 DEG C, 500 DEG C, 550 DEG C, 600 DEG C, 650 DEG C, 700 DEG C and 750 DEG C, passes through research
It was found that be arranged the cookware performance prepared at 400-600 DEG C best for injection temperation, and if being less than 400 DEG C, the compactness of coating and attached
The problem of putting forth effort performance decline, being susceptible to corrosion resistance decline and thermal shock only；If being higher than 600 DEG C, coating is easy
The phenomenon that aoxidizing, coating corrosion resistance can decline.
Inventor has also carried out largely about working gas speed, powder feed rate, jet length in the course of the research
Screening experiment from, consumption parameters such as power and powder size, process is the study found that using " injection pressure 1-3.5MPa；Injection
400-600 DEG C of temperature；Working gas flow velocity 1-2m3/min；Powder conveying capacity 5-15kg/h；Jet length 10-50mm；Consume work(
Rate 15-55kW；The parameter area of 1-50 μm of powder size " is most suitable, is conducive to the heating properties, the corrosion resistance that improve cookware
Can, and have the advantages that stable electrical properties.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (22)
1. a kind of cooking apparatus, which is characterized in that including base material and cold spraying substrate outer surface titanium layer.
2. a kind of cooking apparatus according to claim 1, which is characterized in that the thickness of the titanium layer is 20-40 microns.
3. a kind of cooking apparatus according to claim 1, which is characterized in that the porosity of the titanium layer is 0.05-0.20%.
4. a kind of cooking apparatus according to claim 1, which is characterized in that the base material includes internal layer and outer layer, and outer layer is set
It sets in the outside of internal layer, titanium layer is arranged in the outer surface of outer layer；The internal layer is metal layer, and the outer layer is with magnetic conduction and resistance to
The coating of corrosive nature.
5. a kind of cooking apparatus according to claim 4, which is characterized in that the outer layer is stainless steel layer.
6. a kind of cooking apparatus according to claim 5, which is characterized in that the cladding material is 430 stainless steels.
7. a kind of cooking apparatus according to claim 4, which is characterized in that the thickness of the outer layer is 0.1-1.0mm.
8. a kind of cooking apparatus according to claim 4, which is characterized in that the internal layer be selected from aluminium alloy layer, stainless steel layer,
One or more of copper alloy layer and titanium alloy layer it is compound.
9. a kind of cooking apparatus according to claim 4, which is characterized in that the thickness of the internal layer is 0.5-4.0mm.
10. according to a kind of any one of claim 1-9 cooking apparatus, which is characterized in that the inner surface of the base material is also set
There is non-sticking lining.
11. according to a kind of any one of claim 1-9 cooking apparatus, which is characterized in that the cooking apparatus further includes using
In the heating component heated to base material.
12. a kind of preparation method of any one of claim 1-11 cooking apparatus, which is characterized in that include the following steps：
By titanium valve or titanium alloy powder by under the action of working gas cold spraying make the outer surface shape of base material in the outer surface of base material
At titanium layer.
13. according to the preparation method of cooking apparatus described in claim 12, which is characterized in that the working gas be selected from air,
The mixing of one or more of helium and nitrogen.
14. according to the preparation method of cooking apparatus described in claim 12, which is characterized in that when cold spraying, injection pressure is 1-
3.5MPa。
15. according to the preparation method of cooking apparatus described in claim 12, which is characterized in that when cold spraying, injection temperation is
400-600℃。
16. according to the preparation method of any one of the claim 12-15 cooking apparatus, which is characterized in that the stream of working gas
Speed is 1-2m3/min。
17. according to the preparation method of any one of the claim 12-15 cooking apparatus, which is characterized in that titanium valve or titanium alloy
The conveying capacity of powder is 5-15kg/h.
18. according to the preparation method of any one of the claim 12-15 cooking apparatus, which is characterized in that jet length 10-
50mm。
19. according to the preparation method of any one of the claim 12-15 cooking apparatus, which is characterized in that consumption power is 15-
55kW。
20. according to the preparation method of any one of the claim 12-15 cooking apparatus, which is characterized in that titanium valve or titanium alloy
The granularity of powder is 1-50 microns.
21. according to the preparation method of any one of the claim 12-15 cooking apparatus, which is characterized in that right before cold spraying
Base material surface to be sprayed carries out blasting treatment and oil removing ungrease treatment.
22. according to the preparation method of any one of the claim 12-15 cooking apparatus, which is characterized in that after cold spraying, also
Including titanium layer is polished or turning processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710271245.1A CN108728842A (en) | 2017-04-24 | 2017-04-24 | A kind of cooking apparatus and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710271245.1A CN108728842A (en) | 2017-04-24 | 2017-04-24 | A kind of cooking apparatus and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108728842A true CN108728842A (en) | 2018-11-02 |
Family
ID=63933973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710271245.1A Pending CN108728842A (en) | 2017-04-24 | 2017-04-24 | A kind of cooking apparatus and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108728842A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005015A (en) * | 2019-12-25 | 2020-04-14 | 浙江工业大学 | Method for preparing gradient coating by steel surface cold spraying/laser gas nitriding compounding |
| CN112831745A (en) * | 2020-12-30 | 2021-05-25 | 王炯 | Application of metal coating on aluminum and aluminum alloy catering utensils |
| CN112869531A (en) * | 2019-11-29 | 2021-06-01 | 佛山市顺德区美的电热电器制造有限公司 | Pan and cooking equipment |
| CN113695209A (en) * | 2021-09-14 | 2021-11-26 | 厦门佰顺兴自动化科技有限公司 | Frying pan and manufacturing method thereof |
| CN115142005A (en) * | 2021-04-15 | 2022-10-04 | 浙江福腾宝家居用品有限公司 | Cooking utensil and preparation method thereof |
| CN115852355A (en) * | 2022-12-15 | 2023-03-28 | 广东万事泰集团有限公司 | Cold spraying constant temperature titanium pot |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203970057U (en) * | 2014-02-18 | 2014-12-03 | 浙江百特厨具有限公司 | Compound pot |
| CN105386032A (en) * | 2015-10-29 | 2016-03-09 | 中国科学院宁波材料技术与工程研究所 | Method for preparing wear-resisting super-hydrophobic coating through cold spraying technology and product of method |
| CN105534318A (en) * | 2015-11-18 | 2016-05-04 | 浙江伯是购厨具有限公司 | Long-acting magnetic-conductive and anti-corrosion composite coating for electromagnetic cooker and preparation method of composite coating |
| CN205585852U (en) * | 2016-03-09 | 2016-09-21 | 佛山市顺德区美的电热电器制造有限公司 | Pot, IH electricity rice cooker in IH |
-
2017
- 2017-04-24 CN CN201710271245.1A patent/CN108728842A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203970057U (en) * | 2014-02-18 | 2014-12-03 | 浙江百特厨具有限公司 | Compound pot |
| CN105386032A (en) * | 2015-10-29 | 2016-03-09 | 中国科学院宁波材料技术与工程研究所 | Method for preparing wear-resisting super-hydrophobic coating through cold spraying technology and product of method |
| CN105534318A (en) * | 2015-11-18 | 2016-05-04 | 浙江伯是购厨具有限公司 | Long-acting magnetic-conductive and anti-corrosion composite coating for electromagnetic cooker and preparation method of composite coating |
| CN205585852U (en) * | 2016-03-09 | 2016-09-21 | 佛山市顺德区美的电热电器制造有限公司 | Pot, IH electricity rice cooker in IH |
Non-Patent Citations (2)
| Title |
|---|
| 孙家枢等: "《热喷涂科学与技术》", 31 October 2013, 冶金工业出版社 * |
| 张平: "《热喷涂材料》", 31 January 2006 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112869531A (en) * | 2019-11-29 | 2021-06-01 | 佛山市顺德区美的电热电器制造有限公司 | Pan and cooking equipment |
| CN111005015A (en) * | 2019-12-25 | 2020-04-14 | 浙江工业大学 | Method for preparing gradient coating by steel surface cold spraying/laser gas nitriding compounding |
| CN112831745A (en) * | 2020-12-30 | 2021-05-25 | 王炯 | Application of metal coating on aluminum and aluminum alloy catering utensils |
| CN115142005A (en) * | 2021-04-15 | 2022-10-04 | 浙江福腾宝家居用品有限公司 | Cooking utensil and preparation method thereof |
| CN113695209A (en) * | 2021-09-14 | 2021-11-26 | 厦门佰顺兴自动化科技有限公司 | Frying pan and manufacturing method thereof |
| CN115852355A (en) * | 2022-12-15 | 2023-03-28 | 广东万事泰集团有限公司 | Cold spraying constant temperature titanium pot |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108728842A (en) | A kind of cooking apparatus and preparation method thereof | |
| CN108720545A (en) | A kind of cooking apparatus and preparation method thereof | |
| CN104894554B (en) | A kind of preparation method and application of high-compactness cold spraying metal/metal base lithosomic body | |
| CN207492636U (en) | A kind of cooking apparatus | |
| CN103290403B (en) | A kind of method preparing high-content WC enhancing alloy powder coating | |
| CN105648296B (en) | A kind of high temperature resistance tungsten carbide-base metal-ceramic composite powder end, coating and its preparation process containing Re | |
| CN104174987B (en) | The method of intermetallic compound coating is prepared at metal base surface | |
| CN103103470A (en) | Anti-sticking coating | |
| CN102828137A (en) | High-temperature alloy surface nanometer composite coating and preparation method thereof | |
| CN113373400B (en) | Preparation method of wear-resistant ceramic coating and wear-resistant ceramic coating | |
| CN108118338A (en) | A kind of method of high-frequency induction heating cladding TiC enhancings high-entropy alloy coating | |
| CN108720619B (en) | Cooking utensil and preparation method thereof | |
| CN103757581A (en) | Method for spraying hypersonic flame on surface of intermediate/high-temperature furnace roller | |
| CN103276341B (en) | Water turbine flow passage component wear-resistant coating spraying method | |
| CN106637045A (en) | Technique for preparing Co-based WC coating on metal surface | |
| CN108085677A (en) | A kind of coating and preparation method thereof | |
| CN103725945A (en) | High hardness tungsten carbide base wear-resistant coating material and preparation method thereof | |
| CN110923610B (en) | Preparation method of cobalt-based alloy composite powder and cladding coating for plasma spraying | |
| CN108085673B (en) | Preparation method of cookware with cold spraying magnetic conductive coating | |
| CN108085676A (en) | A kind of coating and preparation method thereof | |
| CN104498858A (en) | Nano-ceramic thermal barrier coating and preparation method thereof | |
| CN102618814A (en) | Supersonic flame spraying tungsten carbide coating containing solid self-lubricating phase and preparation method of supersonic flame spraying tungsten carbide coating | |
| CN103769576A (en) | Tungsten carbide-based wear-resistant coating material for preparing low-porosity coating and preparation method thereof | |
| CN105463283A (en) | Preparing method and application of tungsten boride thermal spraying coating material | |
| CN213309133U (en) | Cooking utensil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181102 |
|
| RJ01 | Rejection of invention patent application after publication |