CN111197151A - Energy-gathering ring pot holder for kitchen range and production process thereof - Google Patents

Energy-gathering ring pot holder for kitchen range and production process thereof Download PDF

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Publication number
CN111197151A
CN111197151A CN201811365269.4A CN201811365269A CN111197151A CN 111197151 A CN111197151 A CN 111197151A CN 201811365269 A CN201811365269 A CN 201811365269A CN 111197151 A CN111197151 A CN 111197151A
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Prior art keywords
coating
energy
gathering ring
ring pot
production process
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CN201811365269.4A
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CN111197151B (en
Inventor
周佳强
张蒙恩
陈雄
田赛
殷少睿
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Qingdao Haier Wisdom Kitchen Appliance Co Ltd
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Qingdao Haier Wisdom Kitchen Appliance Co Ltd
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    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • 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
    • 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
    • C23C4/134—Plasma 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
    • C23C4/18—After-treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

The invention provides an energy-gathering ring pot holder for a kitchen range and a production process thereof, wherein the outer part of a base body of the energy-gathering ring pot holder is coated with a heat-insulating ceramic composite coating, the thickness of the composite coating is 60-80 mu m, and the composite coating comprises a metal coating coated outside the base body and a ceramic coating outside the metal coating. In the invention, the metal coating is a nickel-aluminum alloy coating, and the ceramic coating is a zirconium silicate ceramic coating, so that the heat insulation and heat preservation performance of the energy-gathering ring pot frame can be improved, the cost is low, and the product appearance is good.

Description

Energy-gathering ring pot holder for kitchen range and production process thereof
Technical Field
The invention belongs to the technical field of household appliances, in particular to the technical field of stoves.
Background
The energy-gathering ring pot racks used on the existing household gas cooker in the market have poor service performance, wherein the energy-gathering ring pot racks made of cast iron materials are more, the heat conductivity of the cast iron materials is relatively high, meanwhile, the heat absorption capacity of the cast iron materials is strong, and the heat efficiency improvement of the cooker is influenced by the characteristics of the cast iron energy-gathering ring pot racks; the energy-gathering ring pot holder is also made of a stainless steel plate, and a heat-insulating interlayer is arranged in the middle of the stainless steel plate of the energy-gathering ring pot holder.
Disclosure of Invention
The invention mainly aims to solve the problems and the defects, and firstly provides an energy-gathering ring pot rack for a cooker and a production process of the energy-gathering ring pot rack, wherein the energy-gathering ring pot rack has the advantages of good heat insulation and preservation effects, attractive appearance and low cost.
In order to realize the purpose, the invention firstly provides an energy-gathering ring pot rack for a cooker, and the technical scheme is as follows:
the energy gathering ring pot holder for the kitchen range is characterized in that the outer part of a base body of the energy gathering ring pot holder is coated with a heat insulation ceramic composite coating.
Further, the heat-insulating ceramic composite coating comprises a metal coating coated outside the substrate and a ceramic coating outside the metal coating.
Further, the metal coating is a nickel-aluminum alloy coating.
Further, the ceramic coating is a zirconium silicate ceramic coating.
Further, the thickness of the heat-insulating ceramic composite coating is 60-80 μm.
The invention further provides a production process of the energy-gathering ring pot frame for the kitchen range, which comprises the following steps:
s1, processing and casting a sample of an energy-gathering ring pot frame, and carrying out rust removal, oil removal and sand blasting roughening surface treatment on the surface of a matrix of the sample;
s2, preheating the sample to 200 +/-10 ℃, and spraying nickel-aluminum powder on the surface of the matrix by using a flame spray gun to form a nickel-aluminum alloy coating;
s3, spraying the prepared zirconium silicate ceramic powder on the surface of the sample coated with the alloy coating in a plasma spraying mode by using argon and hydrogen as working gases;
s4, conveying the sample into an atmosphere sintering furnace for sintering, wherein the sintering temperature is 1300-1500 ℃, the sintering atmosphere is N2, and the pressure is 0.2MPa, so that the zirconium silicate ceramic coating is prepared on the outer layer of the alloy coating;
s5, cooling the sample to room temperature, standing for 24 hours, sampling to detect whether the thickness of the zirconium silicate ceramic coating is within the range of the specified interval, and respectively processing the samples which are not within the range of the specified thickness into waste samples or returning to the step S3, reducing the spraying amount and then carrying out plasma spraying again.
Further, in the step S2, the content of the aluminum powder in the nickel-aluminum powder is 4 wt% to 10 wt%.
Further, in the step S2, the thickness of the nickel-aluminum alloy coating is 20 to 30 μm.
Further, the thickness of the zirconium silicate ceramic coating is 35-55 μm.
Further, in step S5, when the detected amount exceeds 10% of the predetermined upper limit, the batch of samples is determined to be a waste, and the process flow proceeds to a waste disposal flow, and when the amount is less than 15% of the predetermined lower limit, the batch of samples is returned to step S3, and the plasma spraying is resumed after the spraying amount is reduced.
In summary, compared with the prior art, the energy-gathering ring pot holder for the kitchen range and the processing technology provided by the invention have the following advantages: the raw materials of the zirconium silicate are widely and easily available and low in price, the number of formed ceramic or ceramic coating thermal expansion systems is small, the chemical stability is good, and the high-temperature corrosion resistance is realized.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
The invention provides an energy-gathering ring pot holder for a kitchen range, wherein the outer part of a base body of the energy-gathering ring pot holder is coated with a heat-insulating ceramic composite coating, the thickness of the composite coating is 60-80 mu m, and the composite coating comprises a metal coating coated outside the base body and a ceramic coating outside the metal coating. In the invention, the metal coating is a nickel-aluminum alloy coating, and the ceramic coating is a zirconium silicate ZrSiO4 ceramic coating.
The invention further provides a production process of the energy gathering ring pot holder for the kitchen range, and further provides a production process of coating a heat-insulating ceramic composite coating on a common casting substrate to produce the energy gathering ring pot holder, which comprises the following steps:
s1, processing and casting a sample of the energy-gathering ring pot frame, in order to improve the adsorption force between a coating and a matrix and prevent the corrosion of the coating from local peeling off, the surface of the matrix needs to be pretreated before spraying, and the surface of the matrix of the sample is subjected to rust removal, oil removal treatment and sand blasting roughening surface treatment by using a conventional method of thermal spraying pretreatment.
S2, preheating the sample after surface treatment to 200 +/-10 ℃, spraying nickel-based metal powder on the surface of the substrate after sand blasting treatment by using a flame spray gun, usually an oxygen-acetylene flame spray gun, thereby forming a nickel-based alloy coating on the surface of the sample, wherein the main component of the nickel-based metal powder is nickel-aluminum Ni-Al metal powder, wherein when the content of the nickel Ni powder in the nickel-aluminum Ni-Al metal powder is higher, the content of the aluminum Al powder is 4 wt% -10 wt%, and preferably 5 wt% -7 wt%, or when the content of the nickel Ni powder also contains a small amount of other metal powder, such as cobalt (Co), magnesium (Mg), and the like, and when the content of the aluminum Al powder is 8.7%, the oxidation resistance of the substrate can be improved, the bonding with a ceramic layer can be facilitated, and the adhesive force of the ceramic coating can be improved. The usage amount of the nickel-aluminum Ni-Al metal powder in the spraying process is controlled, so that the thickness of the formed nickel-aluminum Ni-Al alloy coating is 20-30 mu m, the effective anti-oxidation corrosion effect can be achieved, and the alloy coating, the ceramic layer and the substrate can be tightly combined.
S3, directly processing the sample sprayed with the alloy coating by ceramic coating, using argon as working gas, if necessary, mixed gas of argon and hydrogen can be selected as working gas, and spraying the sample surface coated with the alloy coating by ion sprayingAnd (3) preparing the ceramic powder. The powder outlet of the ion spray gun is vertical to the surface of the matrix, the spraying distance of 80-120mm is kept, and zirconium silicate ZrSiO is uniformly sprayed on the surface of the matrix4A ceramic powder.
The sample is directly sprayed with ceramic powder after the alloy coating is finished, the residual temperature of the sample during the alloy coating can be fully utilized, and the ceramic coating is added on the surface of the alloy coating again, so that the energy can be saved, and the processing period can be shortened. The ion spraying equipment is an automatic spraying system, which comprises a control device, wherein the control device prestores relevant parameters of parts, surface areas and coating thicknesses of different energy-gathering ring pot racks to be sprayed, and corresponding ceramic powder consumption, and the thickness of a ceramic coating is 35-55 mu m. Similarly, in step S2, when spraying the Ni-Al alloy, the amount of the Ni-Al metal powder used in the control device associated with the flame spray gun may be controlled according to the surface area to be sprayed, so as to achieve the corresponding coating thickness.
When the ceramic coating is sprayed, the zirconium silicate ZrSiO is selected4Powder of zirconium silicate ZrSiO4The invention is a common ceramic material, has small number of thermal expansion systems, chemical stability, high temperature corrosion resistance and low price, and adopts ion spraying and zirconium silicate ZrSiO4Decomposed into SiO2And ZrO2Zirconium oxide ZrO can be effectively prevented due to interface reaction2Without the addition of stabilizers and, when subjected to sintering treatment, decomposed into SiO2And ZrO2When the heat treatment is carried out at the temperature of more than 1200 ℃, the zirconium silicate ZrSiO4 coating can be quickly converted, so that the final forming effect of the product is good.
In order to further reduce the thermal conductivity of the ceramic coating, zirconium silicate ZrSiO4The powder can be added with a certain amount of aluminum oxide Al2O3Powders, e.g. with addition of 8.7 wt.% Al2O3The powder can ensure that the formed ceramic coating has higher density, lower porosity and small thermal expansion coefficient, and experiments prove that the thermal diffusion system and the thermal conductivity are reduced by 10 percent.
S4, sending the prepared sample to an atmosphere sintering furnaceSintering at 1200-1500 deg.c in N2 atmosphere under 0.2MPa for 1.5-2 hr to prepare ZrSiO zirconium silicate layer on the outer layer of the alloy coating4Ceramic coating, thereby coating zirconium silicate ZrSiO on the surface of the energy-gathering ring pot body4A Ni-Al composite ceramic coating. Although the thicker the composite coating, in particular zirconium silicate ZrSiO4The thicker the coating layer is, the better the heat insulation effect is, but in order to consider the cost and the overall weight of the product, a great deal of experiments prove that the heat insulation effect, the weight, the adsorption effect and the cost are the best when the overall thickness of the composite ceramic coating layer is 60-80 μm, and particularly when the thickness of the ceramic coating layer is not more than 50-55 μm.
S5, in the actual production process, when the composite ceramic coating is coated on the energy-gathering ring pan body, a plurality of products are produced and processed simultaneously, in order to control the product quality, the coated samples need to be sampled and detected, the coating thickness of the batch of products meeting the requirements in the operation specification is determined, the sintered samples are cooled to room temperature and then placed for 24 hours, and the zirconium silicate ZrSiO is sampled and detected in the batch of products according to the specification4If the thickness of the ceramic coating is within the predetermined interval, the samples not within the predetermined range are subjected to the waste sample treatment according to the thickness, or the process returns to the step S3, and the plasma spraying is performed again after the spraying amount is reduced.
Further, when the total thickness of the heat-insulating ceramic composite coating coated on the substrate is detected to exceed 10% of the specified upper limit in a sampling mode, the batch of samples are determined to be waste pieces, the waste piece processing flow is started, for example, the ceramic coating can be chemically processed on the basis of ensuring that the nickel-aluminum alloy coating is not damaged, then the step S3 is repeated, and the zirconium silicate ZrSiO is manually and properly reduced in a manual mode according to the standard exceeding program of the ceramic coating4And (4) when the using amount of the ceramic powder is re-sprayed and sintered on the ceramic coating and re-detected, and the thickness of the ceramic coating is lower than 15% of the specified lower limit, the batch of samples are completely returned to the step S3, and the plasma spraying, sintering and further sampling detection are performed again after the spraying amount is reduced according to the thickness of the ceramic coating. The specific waste treatment process and re-spray operation may be conducted according to production specifications, whereAnd are not required or limited.
Example 1
The production process of producing energy gathering ring pot holder with heat insulating composite ceramic coating on common cast base includes the following steps:
s1, processing and casting a sample of the energy-gathering ring pot frame, and performing rust removal, oil removal and sand blasting roughening surface treatment on the surface of a matrix of the sample by using a conventional method of thermal spraying pretreatment before spraying.
S2, preheating the sample after surface treatment to 200 +/-10 ℃, and spraying nickel-aluminum Ni-Al metal powder serving as a main component onto the surface of the substrate after sand blasting treatment by using an oxygen-acetylene flame spray gun, wherein the content of the aluminum Al powder is 4 wt%. The usage amount of the nickel-aluminum Ni-Al metal powder in the spraying process is controlled, so that the thickness of the formed nickel-aluminum Ni-Al alloy coating is 20-30 mu m.
And S3, directly processing the ceramic coating on the sample sprayed with the alloy coating, and spraying the prepared ceramic powder on the surface of the sample coated with the alloy coating in an ion spraying manner by using argon as a working gas and optionally a mixed gas of argon and hydrogen as the working gas. The powder outlet of the ion spray gun is vertical to the surface of the matrix, the spraying distance of 80-120mm is kept, and zirconium silicate ZrSiO is uniformly sprayed on the surface of the matrix4Controlling the use amount of the ceramic powder to ensure that the thickness of the ceramic coating is 35-55 mu m.
S4, the prepared sample is sent to an atmosphere sintering furnace for sintering, the sintering temperature is 1200 ℃, the sintering atmosphere is N2, the pressure is 0.2MPa, and the sintering time is 1.5h, so that the surface of the energy-gathering ring pot body is coated with zirconium silicate/nickel-aluminum ZrSiO4the/Ni-Al composite ceramic coating.
S5, cooling the sintered sample to room temperature, standing for 24 hours, and sampling and detecting zirconium silicate ZrSiO in the batch according to the specification4The thickness of the ceramic coating, when the total thickness of the thermal insulation ceramic composite coating exceeds 10% of the specified upper limit, the batch of samples is determined to be waste, the ceramic coating is chemically disposed of on the basis of ensuring no damage to the nickel-aluminum alloy coating, then the step S3 is repeated, when the thickness of the ceramic coating is lower than 15% of the specified lower limit,the batch of samples is directly returned to step S3, and plasma spraying, sintering and further sampling are performed again after the spray amount is reduced according to the coating thickness. And when the total thickness of the heat-insulating ceramic composite coating exceeds 0-10% of the upper limit, or is lower than 0-15% of the lower limit, the coating is regarded as qualified.
Example 2
The production process of the energy-gathering ring pot frame by coating the heat-insulating ceramic composite coating on the common casting matrix is the same as the step method of the implementation 1, and the difference is that:
s2, when spraying the nickel-aluminum Ni-Al metal powder, the aluminum Al powder content in the nickel-aluminum Ni-Al metal powder is 5 wt%;
s4, the sintering temperature is 1300 ℃, and the sintering time is 1.8 h.
Example 3
The production process of the energy-gathering ring pot frame by coating the heat-insulating ceramic composite coating on the common casting matrix is the same as the step method of the implementation 1, and the difference is that:
s2, when spraying the nickel-aluminum Ni-Al metal powder, the aluminum Al powder content in the nickel-aluminum Ni-Al metal powder is 7 wt%;
and S4, wherein the sintering temperature is 1400 ℃, and the sintering time is 2 h.
Example 4
The production process of the energy-gathering ring pot frame by coating the heat-insulating ceramic composite coating on the common casting matrix is the same as the step method of the implementation 1, and the difference is that:
s2, when spraying the nickel-aluminum Ni-Al metal powder, the aluminum Al powder content in the nickel-aluminum Ni-Al metal powder is 10 wt%;
s4, the sintering temperature is 1500 ℃, and the sintering time is 2 h.
Example 5
The production process of the energy-gathering ring pot frame by coating the heat-insulating ceramic composite coating on the common casting matrix is the same as the step method of the implementation 1, and the difference is that:
s2, when spraying the nickel-aluminum Ni-Al metal powder, the nickel-aluminum Ni-Al metal powder also contains a small amount of cobalt Co and magnesium Mg metal powder, wherein the aluminum Al powder content is 8.7 wt%;
s4, the sintering temperature is 1350 ℃, and the sintering time is 1.8 h.
It should be noted that the various control parameters given in the above embodiments are only a few examples, and are not to be considered as limitations on the control parameters of the production process. In the actual production, each parameter can be selected within the recommended range of each control parameter given by the implementation, and the production mode in the actual production process can be not only the above-mentioned several production methods, but also fall within the protection range of the invention as long as each parameter is within the numerical range provided by the invention.
In summary, compared with the prior art, the energy-gathering ring pot holder for the kitchen range and the processing technology provided by the invention have the following advantages: the raw materials of zirconium silicate ZrSiO4 are widely available and cheap, the number of thermal expansion systems of the formed ceramic or ceramic coating is small, the chemical stability is good, the high-temperature corrosion resistance is realized, the nickel-aluminum Ni-Al alloy coating is used as the bottom layer of the ceramic coating, the stress generated between the ceramic layer and the matrix due to the mismatching of the thermal expansion systems can be relieved, the effect of resisting the oxidation corrosion on the matrix is realized, the ceramic layer and the matrix can be tightly combined, and the coating is effectively prevented from falling off.
Similar solutions can be derived as described above in connection with the given solution content. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims (10)

1. The utility model provides a cooking utensils are with gathering can ring pot frame which characterized in that: the outer part of the base body of the energy-gathering ring pot frame is coated with a heat-insulating ceramic composite coating.
2. The energy-gathering ring pot holder for the kitchen range as claimed in claim 1, wherein: the heat-insulating ceramic composite coating comprises a metal coating coated outside the substrate and a ceramic coating outside the metal coating.
3. The energy-gathering ring pot holder for the kitchen range as claimed in claim 2, wherein: the metal coating is a nickel-aluminum alloy coating.
4. The energy-gathering ring pot holder for the kitchen range as claimed in claim 2, wherein: the ceramic coating is a zirconium silicate ceramic coating.
5. The energy-gathering ring pot holder for the kitchen range as claimed in claim 1, wherein: the thickness of the heat-insulating ceramic composite coating is 60-80 μm.
6. A production process of an energy-gathering ring pot frame for a kitchen range is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
s1, processing and casting a sample of an energy-gathering ring pot frame, and carrying out rust removal, oil removal and sand blasting roughening surface treatment on the surface of a matrix of the sample;
s2, preheating the sample to 200 +/-10 ℃, and spraying nickel-aluminum powder on the surface of the matrix by using a flame spray gun to form a nickel-aluminum alloy coating;
s3, spraying the prepared zirconium silicate ceramic powder on the surface of the sample coated with the alloy coating in a plasma spraying mode by using argon and hydrogen as working gases;
s4, conveying the sample into an atmosphere sintering furnace for sintering, wherein the sintering temperature is 1300-1500 ℃, the sintering atmosphere is N2, and the pressure is 0.2MPa, so that the zirconium silicate ceramic coating is prepared on the outer layer of the alloy coating;
s5, cooling the sample to room temperature, standing for 24 hours, sampling to detect whether the thickness of the zirconium silicate ceramic coating is within the range of the specified interval, and respectively processing the samples which are not within the range of the specified thickness into waste samples or returning to the step S3, reducing the spraying amount and then carrying out plasma spraying again.
7. The production process of the energy-gathering ring pot rack for the kitchen range as claimed in claim 6, wherein the production process comprises the following steps: in the step S2, the content of the aluminum powder in the nickel-aluminum powder is 4 wt% -10 wt%.
8. The production process of the energy-gathering ring pot rack for the kitchen range as claimed in claim 6, wherein the production process comprises the following steps: in the step S2, the thickness of the nickel-aluminum alloy coating is 20-30 μm.
9. The production process of the energy-gathering ring pot rack for the kitchen range as claimed in claim 6, wherein the production process comprises the following steps: the thickness of the zirconium silicate ceramic coating is 35-55 mu m.
10. The production process of the energy-gathering ring pot rack for the kitchen range as claimed in claim 6, wherein the production process comprises the following steps: in step S5, when the detected amount exceeds 10% of the predetermined upper limit, the batch of samples is determined to be a waste, and the process proceeds to a waste disposal flow, and when the detected amount is less than 15% of the predetermined lower limit, the batch of samples returns to step S3, and the plasma spraying is performed again after the spraying amount is reduced.
CN201811365269.4A 2018-11-16 2018-11-16 Energy-gathering ring pot frame for kitchen range and production process thereof Active CN111197151B (en)

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CN111197151B CN111197151B (en) 2023-05-02

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