Magnesium alloy cookware

Abstract

A magnesium alloy cookware comprises a magnesium alloy base material layer, a micro-arc oxidation layer is formed on the base material layer through a micro-arc oxidation process, and a protective coating capable of penetrating into pores of the micro-arc oxidation layer is further arranged on the micro-arc oxidation layer. And an anti-sticking coating is also arranged on the protective coating.

Description

Technical Field

[0001] The invention relates to a magnesium alloy cookware. Background Art

[0002] Due to its unique properties, magnesium alloys are widely used in aerospace, medical and other fields. Magnesium alloys have the advantages of low density, large elastic modulus, and high thermal conductivity, and have broad application prospects in the kitchenware industry. The characteristics of magnesium alloys are in line with the lightweight and smokeless development of kitchenware. Low density is conducive to the lightweight design of kitchenware, making the kitchen lighter and more labor-saving. High thermal conductivity, fast and uniform heating of the pot body, can reduce problems such as sticking and smoking caused by local overheating during the use of cookware.

[0003] Magnesium alloys have active chemical properties and are prone to corrosion during use. In industry, they are mainly treated with anodizing, micro-arc oxidation, surface coating and other methods to prevent corrosion.

[0004] Micro-arc oxidation generates instantaneous high temperature and high pressure through arc discharge, oxidizing magnesium alloy into a ceramic film layer of metal oxide (for example, CN101653900A and CN112075826A both mention the micro-arc oxidation process of magnesium alloy pots). However, since the volume ratio of MgO to Mg metal (Pilling-Bedworth ratio) is less than 1, the oxide film of magnesium alloy inevitably has pores, resulting in the inability of the magnesium alloy oxide film to achieve perfect corrosion resistance.

[0005] Surface coating usually uses organic coating to form a continuous and dense polymer film on the surface of the workpiece to block water and oxygen and achieve the effect of corrosion prevention. However, the polymer film also has the problems of poor adhesion, low hardness and poor wear resistance. When used in the cookware industry, there is a risk of coating aging and falling off.

[0006] The above-mentioned single anti-corrosion film layer cannot meet the cookware industry's stringent requirements for magnesium alloy surface wear resistance, corrosion resistance, etc., nor can it effectively achieve a non-stick effect. Summary of the invention

[0007] In order to overcome the above-mentioned deficiencies of the existing magnesium alloy cookware, the present invention provides a magnesium alloy cookware which can achieve better corrosion resistance and non-stick effects.

[0008] The technical solution of the present invention to solve the technical problem is: a magnesium alloy cookware, comprising a magnesium alloy substrate layer, a micro-arc oxidation layer is formed on the substrate layer by a micro-arc oxidation process, A protective coating capable of penetrating into the pores of the micro-arc oxidation layer is also provided on the micro-arc oxidation layer; An anti-stick coating is also provided on the protective coating.

[0009] Preferably, the protective coating comprises component A and component B, component A is resin powder, component B is metal powder or ceramic powder, and the mass ratio of component A to component B is 10:1-3; After the A component and the B component are uniformly mixed, they are melt-sprayed on the micro-arc oxidation layer, and the resin powder is melted and infiltrated into the pores of the micro-arc oxidation film layer through thermal spraying.

[0010] Preferably, the resin powder is polytetrafluoroethylene particles, or polyethylene particles, or polycarbonate particles, or polysiloxane particles, or any combination of the above resin powders, and the particle size of the resin powder is 10-50 μm; The metal powder is stainless steel powder, titanium powder, aluminum powder, or any combination of the above metal powders, and the particle size of the metal powder is 10-80 μm; The ceramic powder is titanium oxide powder, aluminum oxide powder, zirconium oxide powder, titanium nitride powder, silicon carbide powder, or any combination of the above ceramic powders, and the particle size of the ceramic powder is 10-80 μm.

[0011] Preferably, the protective coating material is melt-sprayed on the micro-arc oxidation layer by flame thermal spraying, plasma spraying, or laser cladding.

[0012] Preferably, the protective coating material is melt-sprayed on the micro-arc oxidation layer by plasma spraying, and the plasma spraying parameters are voltage: 60V, current: 240A, and working gas: N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min.

[0013] Preferably, the anti-stick coating comprises a component C and a component D, wherein the component C is a ceramic powder, the component D is a resin powder, and the mass ratio of the component C to the component D is 20:1 to 10; after the component C and the component D are evenly mixed, they are melt-sprayed on the protective coating, wherein the ceramic powder is in a surface molten state, and the resin powder is in a molten state, so that the formed anti-stick coating has a porous structure.

[0014] Preferably, the ceramic powder is titanium oxide powder, or aluminum oxide powder, or zirconium oxide powder, or titanium nitride powder, or silicon carbide powder, or any combination of the above ceramic powders, and the particle size of the ceramic powder is 10-50 μm; The resin powder is polytetrafluoroethylene particles, polyethylene particles, polycarbonate particles, polyphenyl parahydroxybenzoate particles, polysiloxane particles, or any combination of the above resin powders, and the particle size of the resin powder is 10-50 μm.

[0015] Preferably, the anti-stick coating material is melt-sprayed on the protective coating by flame thermal spraying, plasma spraying, or laser cladding.

[0016] Preferably, the anti-stick coating material is melt-sprayed on the protective coating by plasma spraying, and the plasma spraying parameters are voltage: 50V, current: 220A, and working gas: N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min.

[0017] The beneficial effects of the present invention are as follows: in the protective coating, the resin powder is melted and penetrated into the pores of the micro-arc oxidation film layer through thermal spraying, filling the gaps to form a more rigorous anti-corrosion coating, and the addition of metal powder or ceramic powder increases the hardness of the film layer and improves the wear resistance of the film layer; in the anti-stick coating, the difference in melting points between the ceramic powder and the resin powder is utilized, the ceramic powder is in a surface molten state, and the resin powder is in a molten state for spraying, so as to construct a hard coating with a porous structure on the surface of the cookware, and the oil storage function of the porous structure is utilized to effectively achieve the non-stick effect, that is, the porous structure can store oil, and the grease stored in the porous structure during cooking can precipitate to form an oil film, thereby achieving the non-stick effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the present invention. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Embodiment 1, refer to Figure 1 A magnesium alloy cookware comprises a magnesium alloy substrate layer 1, on which a micro-arc oxidation layer 2 is formed by a micro-arc oxidation process.

[0021] A protective coating 3 capable of penetrating into the pores of the micro-arc oxidation layer is also provided on the micro-arc oxidation layer 2. An anti-stick coating 4 is also provided on the protective coating 3.

[0022] In this embodiment, the protective coating 3 includes component A and component B, component A is resin powder, component B is metal powder, and the mass ratio of component A to component B is 5:1. After component A and component B are evenly mixed, they are melt-sprayed on the micro-arc oxidation layer 2, and the resin powder is melted and penetrated into the pores of the micro-arc oxidation film layer through thermal spraying. The resin powder is polytetrafluoroethylene particles, and the particle size of the polytetrafluoroethylene particles is controlled between 10 and 50 μm. The metal powder is stainless steel powder, and the particle size of the stainless steel powder is controlled between 10 and 80 μm.

[0023] The protective coating melt spraying process can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 60V, current: 240A, and working gas is N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min.

[0024] In this embodiment, the anti-stick coating 4 includes a C component and a D component, wherein the C component is a ceramic powder, the D component is a resin powder, and the mass ratio of the C component to the D component is 4:1; after the C component and the D component are evenly mixed, they are melt-sprayed on the protective coating 3, wherein the ceramic powder is in a surface molten state, and the resin powder is in a molten state, so that the formed anti-stick coating 4 has a porous structure. The ceramic powder is a titanium oxide powder, and the particle size of the titanium oxide powder is controlled to be 10-50 μm. The resin powder is a polytetrafluoroethylene particle, and the particle size of the polytetrafluoroethylene particle is controlled to be 10-50 μm.

[0025] The process of melt spraying of the anti-stick coating can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 50V, current: 220A, and working gas: N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min, using the above current and voltage data to adjust to the appropriate power, utilizing the difference in melting points between the ceramic powder and the resin powder, the ceramic powder is in a molten state on the surface and the resin powder is in a molten state for spraying, constructing a hard coating with a porous structure on the surface of the cookware, and utilizing the oil storage function of the porous structure to effectively achieve a non-stick effect.

[0026] Example 2, refer to Figure 1 A magnesium alloy cookware comprises a magnesium alloy substrate layer 1, on which a micro-arc oxidation layer 2 is formed by a micro-arc oxidation process.

[0027] A protective coating 3 capable of penetrating into the pores of the micro-arc oxidation layer is also provided on the micro-arc oxidation layer 2. An anti-stick coating 4 is also provided on the protective coating 3.

[0028] In this embodiment, the protective coating 3 includes component A and component B, component A is resin powder, component B is metal powder, and the mass ratio of component A to component B is 10:1. After component A and component B are evenly mixed, they are melt-sprayed on the micro-arc oxidation layer 2, and the resin powder is melted and penetrated into the pores of the micro-arc oxidation film layer by thermal spraying. The resin powder is polyethylene particles, and the particle size of the polyethylene particles is controlled between 10 and 50 μm. The metal powder is titanium powder, and the particle size of the titanium powder is controlled between 10 and 80 μm.

[0029] The protective coating melt spraying process can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 60V, current: 240A, and working gas is N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min.

[0030] In this embodiment, the anti-stick coating 4 includes a C component and a D component, wherein the C component is a ceramic powder, the D component is a resin powder, and the mass ratio of the C component to the D component is 2:1; after the C component and the D component are evenly mixed, they are melt-sprayed on the protective coating 3, wherein the ceramic powder is in a surface molten state, and the resin powder is in a molten state, so that the formed anti-stick coating 4 has a porous structure. The ceramic powder is a zirconium oxide powder, and the particle size of the zirconium oxide powder is controlled to be 10-50 μm. The resin powder is a polysiloxane particle, and the particle size of the polysiloxane particle is controlled to be 10-50 μm.

[0031] The process of melt spraying of the anti-stick coating can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 50V, current: 220A, and working gas: N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H2 : 0.5MPa, powder feeding speed 50L / min, using the above current and voltage data to adjust to the appropriate power, utilizing the difference in melting points between the ceramic powder and the resin powder, the ceramic powder is in a molten state on the surface and the resin powder is in a molten state for spraying, constructing a hard coating with a porous structure on the surface of the cookware, and utilizing the oil storage function of the porous structure to effectively achieve a non-stick effect.

[0032] Example 3, refer to Figure 1 A magnesium alloy cookware comprises a magnesium alloy substrate layer 1, on which a micro-arc oxidation layer 2 is formed by a micro-arc oxidation process.

[0033] A protective coating 3 capable of penetrating into the pores of the micro-arc oxidation layer is also provided on the micro-arc oxidation layer 2. An anti-stick coating 4 is also provided on the protective coating 3.

[0034] In this embodiment, the protective coating 3 includes component A and component B, component A is resin powder, component B is metal powder, and the mass ratio of component A to component B is 10:3. After component A and component B are evenly mixed, they are melt-sprayed on the micro-arc oxidation layer 2, and the resin powder is melted and penetrated into the pores of the micro-arc oxidation film layer through thermal spraying. The resin powder is polycarbonate particles, and the particle size of the polycarbonate particles is controlled between 10 and 50 μm. The metal powder is aluminum powder, and the particle size of the aluminum powder is controlled between 10 and 80 μm.

[0035] The protective coating melt spraying process can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 60V, current: 240A, and working gas is N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min.

[0036] In this embodiment, the anti-stick coating 4 includes a C component and a D component, wherein the C component is a ceramic powder, the D component is a resin powder, and the mass ratio of the C component to the D component is 20:1; after the C component and the D component are evenly mixed, they are melt-sprayed on the protective coating 3, wherein the ceramic powder is in a surface molten state, and the resin powder is in a molten state, so that the formed anti-stick coating 4 has a porous structure. The ceramic powder is a titanium oxide powder, and the particle size of the titanium oxide powder is controlled to be 10-50 μm. The resin powder is a polyethylene particle, and the particle size of the polyethylene particle is controlled to be 10-50 μm.

[0037] The process of melt spraying of the anti-stick coating can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 50V, current: 220A, and working gas: N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min, using the above current and voltage data to adjust to the appropriate power, utilizing the difference in melting points between the ceramic powder and the resin powder, the ceramic powder is in a molten state on the surface and the resin powder is in a molten state for spraying, constructing a hard coating with a porous structure on the surface of the cookware, and utilizing the oil storage function of the porous structure to effectively achieve a non-stick effect.

[0038] Embodiment 4, referring to Figure 1 A magnesium alloy cookware comprises a magnesium alloy substrate layer 1, on which a micro-arc oxidation layer 2 is formed by a micro-arc oxidation process.

[0039] A protective coating 3 capable of penetrating into the pores of the micro-arc oxidation layer is also provided on the micro-arc oxidation layer 2. An anti-stick coating 4 is also provided on the protective coating 3.

[0040] In this embodiment, the protective coating 3 includes component A and component B, component A is resin powder, component B is metal powder, and the mass ratio of component A to component B is 5:1.1. After component A and component B are evenly mixed, they are melt-sprayed on the micro-arc oxidation layer 2, and the resin powder is melted and penetrated into the pores of the micro-arc oxidation film layer by thermal spraying. The resin powder is polysilane particles, and the particle size of the polysilane particles is controlled between 10 and 50 μm. The metal powder is a mixed powder of aluminum powder and stainless steel powder, and the ratio of the two can be arbitrarily configured. The particle size of the aluminum powder and the stainless steel powder is controlled between 10 and 80 μm.

[0041] The protective coating melt spraying process can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 60V, current: 240A, and working gas is N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min.

[0042] In this embodiment, the anti-stick coating 4 includes a C component and a D component, wherein the C component is a ceramic powder, the D component is a resin powder, and the mass ratio of the C component to the D component is 10:1; after the C component and the D component are evenly mixed, they are melt-sprayed on the protective coating 3, wherein the ceramic powder is in a surface molten state, and the resin powder is in a molten state, so that the formed anti-stick coating 4 has a porous structure. The ceramic powder is an aluminum oxide powder, and the particle size of the aluminum oxide powder is controlled to be 10-50 μm. The resin powder is a polycarbonate particle, and the particle size of the polycarbonate particle is controlled to be 10-50 μm.

[0043] The process of melt spraying of the anti-stick coating can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 50V, current: 220A, and working gas: N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min, using the above current and voltage data to adjust to the appropriate power, utilizing the difference in melting points between the ceramic powder and the resin powder, the ceramic powder is in a molten state on the surface and the resin powder is in a molten state for spraying, constructing a hard coating with a porous structure on the surface of the cookware, and utilizing the oil storage function of the porous structure to effectively achieve a non-stick effect.

[0044] Example 5, refer to Figure 1 A magnesium alloy cookware comprises a magnesium alloy substrate layer 1, on which a micro-arc oxidation layer 2 is formed by a micro-arc oxidation process.

[0045] A protective coating 3 capable of penetrating into the pores of the micro-arc oxidation layer is also provided on the micro-arc oxidation layer 2. An anti-stick coating 4 is also provided on the protective coating 3.

[0046] In this embodiment, the protective coating 3 includes component A and component B, component A is resin powder, component B is metal powder, and the mass ratio of component A to component B is 4:1. After component A and component B are evenly mixed, they are melt-sprayed on the micro-arc oxidation layer 2, and the resin powder is melted and penetrated into the pores of the micro-arc oxidation film layer after thermal spraying. The resin powder is a mixture of polytetrafluoroethylene particles and polyethylene particles, the ratio of the two can be arbitrarily configured, and the particle size of the polytetrafluoroethylene particles and the polyethylene particles is controlled between 10 and 50 μm. The metal powder is a mixed powder of aluminum powder and titanium powder, the ratio of the two can be arbitrarily configured, and the particle size of the aluminum powder and the titanium powder is controlled between 10 and 80 μm.

[0047] The protective coating melt spraying process can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 60V, current: 240A, and working gas is N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min.

[0048] In this embodiment, the anti-stick coating 4 includes a C component and a D component, wherein the C component is a ceramic powder, the D component is a resin powder, and the mass ratio of the C component to the D component is 20:3; after the C component and the D component are evenly mixed, they are melt-sprayed on the protective coating 3, wherein the ceramic powder is in a surface molten state, and the resin powder is in a molten state, so that the formed anti-stick coating 4 has a porous structure. The ceramic powder is silicon carbide powder, and the particle size of the silicon carbide powder is controlled to be 10~50μm. The resin powder is polyphenyl parahydroxybenzoate particles, and the particle size of the polyphenyl parahydroxybenzoate particles is controlled to be 10~50μm.

[0049] The process of melt spraying of the anti-stick coating can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 50V, current: 220A, and working gas: N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min, using the above current and voltage data to adjust to the appropriate power, utilizing the difference in melting points between the ceramic powder and the resin powder, the ceramic powder is in a molten state on the surface and the resin powder is in a molten state for spraying, constructing a hard coating with a porous structure on the surface of the cookware, and utilizing the oil storage function of the porous structure to effectively achieve a non-stick effect.

[0050] Example 6, refer to Figure 1 A magnesium alloy cookware comprises a magnesium alloy substrate layer 1, on which a micro-arc oxidation layer 2 is formed by a micro-arc oxidation process.

[0051] A protective coating 3 capable of penetrating into the pores of the micro-arc oxidation layer is also provided on the micro-arc oxidation layer 2. An anti-stick coating 4 is also provided on the protective coating 3.

[0052] In this embodiment, the protective coating 3 includes component A and component B, component A is resin powder, component B is metal powder, and the mass ratio of component A to component B is 10:1.3. After component A and component B are evenly mixed, they are melt-sprayed on the micro-arc oxidation layer 2, and the resin powder is melted and penetrated into the pores of the micro-arc oxidation film layer after thermal spraying. The resin powder is a mixture of polycarbonate particles and polysiloxane particles, and the ratio of the two can be arbitrarily configured. The particle size of the polycarbonate particles and the polysiloxane particles is controlled between 10 and 50 μm. The metal powder is a mixed powder of aluminum powder and stainless steel powder, and the ratio of the two can be arbitrarily configured. The particle size of the aluminum powder and the stainless steel powder is controlled between 10 and 80 μm.

[0053] The protective coating melt spraying process can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 60V, current: 240A, and working gas is N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min.

[0054] In this embodiment, the anti-stick coating 4 includes a C component and a D component, wherein the C component is a ceramic powder, the D component is a resin powder, and the mass ratio of the C component to the D component is 5:2; after the C component and the D component are evenly mixed, they are melt-sprayed on the protective coating 3, wherein the ceramic powder is in a surface molten state, and the resin powder is in a molten state, so that the formed anti-stick coating 4 has a porous structure. The ceramic powder is a mixture of silicon carbide powder and zirconium oxide powder, and the ratio of the two can be arbitrarily configured, and the particle size of the silicon carbide powder and the zirconium oxide powder is controlled to be 10~50μm. The resin powder is a mixture of polytetrafluoroethylene particles and polycarbonate particles, and the ratio of the two can be arbitrarily configured, and the particle size of the polytetrafluoroethylene particles and the polycarbonate particles is controlled to be 10~50μm.

[0055] The process of melt spraying of the anti-stick coating can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 50V, current: 220A, and working gas: N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2: 0.5MPa, powder feeding speed 50L / min, using the above current and voltage data to adjust to the appropriate power, utilizing the difference in melting points between the ceramic powder and the resin powder, the ceramic powder is in a molten state on the surface and the resin powder is in a molten state for spraying, constructing a hard coating with a porous structure on the surface of the cookware, and utilizing the oil storage function of the porous structure to effectively achieve a non-stick effect.

[0056] Embodiment 7, refer to Figure 1 A magnesium alloy cookware comprises a magnesium alloy substrate layer 1, on which a micro-arc oxidation layer 2 is formed by a micro-arc oxidation process.

[0057] A protective coating 3 capable of penetrating into the pores of the micro-arc oxidation layer is also provided on the micro-arc oxidation layer 2. An anti-stick coating 4 is also provided on the protective coating 3.

[0058] In this embodiment, the protective coating 3 includes component A and component B, component A is resin powder, component B is metal powder, and the mass ratio of component A to component B is 20:3. After component A and component B are evenly mixed, they are melt-sprayed on the micro-arc oxidation layer 2, and the resin powder is melted and penetrated into the pores of the micro-arc oxidation film layer after thermal spraying. The resin powder is a mixture of polytetrafluoroethylene particles and polysiloxane particles, and the ratio of the two can be arbitrarily configured. The particle size of polytetrafluoroethylene particles and polysiloxane particles is controlled between 10 and 50 μm. The metal powder is a mixed powder of titanium powder, aluminum powder and stainless steel powder, and the ratio of the three can be arbitrarily configured. The particle size of titanium powder, aluminum powder and stainless steel powder is controlled between 10 and 80 μm.

[0059] The protective coating melt spraying process can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 60V, current: 240A, and working gas is N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min.

[0060] In this embodiment, the anti-stick coating 4 includes a C component and a D component, wherein the C component is a ceramic powder, the D component is a resin powder, and the mass ratio of the C component to the D component is 20:9; after the C component and the D component are evenly mixed, they are melt-sprayed on the protective coating 3, wherein the ceramic powder is in a surface molten state, and the resin powder is in a molten state, so that the formed anti-stick coating 4 has a porous structure. The ceramic powder is a mixture of titanium oxide powder and aluminum oxide powder, and the ratio of the two can be arbitrarily configured, and the particle size of the titanium oxide powder and the aluminum oxide powder is controlled to be 10~50μm. The resin powder is a mixture of polyethylene particles and polysiloxane particles, and the ratio of the two can be arbitrarily configured, and the particle size of the polyethylene particles and the polysiloxane particles is controlled to be 10~50μm.

[0061] The process of melt spraying of the anti-stick coating can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 50V, current: 220A, and working gas: N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min, using the above current and voltage data to adjust to the appropriate power, utilizing the difference in melting points between the ceramic powder and the resin powder, the ceramic powder is in a molten state on the surface and the resin powder is in a molten state for spraying, constructing a hard coating with a porous structure on the surface of the cookware, and utilizing the oil storage function of the porous structure to effectively achieve a non-stick effect.

[0062] Embodiment 8, refer to Figure 1 A magnesium alloy cookware comprises a magnesium alloy substrate layer 1, on which a micro-arc oxidation layer 2 is formed by a micro-arc oxidation process.

[0063] A protective coating 3 capable of penetrating into the pores of the micro-arc oxidation layer is also provided on the micro-arc oxidation layer 2. An anti-stick coating 4 is also provided on the protective coating 3.

[0064] In this embodiment, the protective coating 3 includes component A and component B, component A is resin powder, component B is ceramic powder, and the mass ratio of component A to component B is 50:9. After component A and component B are evenly mixed, they are melt-sprayed on the micro-arc oxidation layer 2, and the resin powder is melted and penetrated into the pores of the micro-arc oxidation film layer after thermal spraying. The resin powder is a mixture of polytetrafluoroethylene particles, polysiloxane particles, and polyethylene particles, and the proportion of the three can be arbitrarily configured. The particle size of polytetrafluoroethylene particles, polysiloxane particles, and polyethylene particles is controlled between 10 and 50 μm. The ceramic powder is titanium oxide powder, and the particle size of titanium oxide powder is controlled between 10 and 80 μm.

[0065] The protective coating melt spraying process can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 60V, current: 240A, and working gas is N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min.

[0066] In this embodiment, the anti-stick coating 4 includes a C component and a D component, wherein the C component is a ceramic powder, the D component is a resin powder, and the mass ratio of the C component to the D component is 20:7; after the C component and the D component are evenly mixed, they are melt-sprayed on the protective coating 3, wherein the ceramic powder is in a surface molten state, and the resin powder is in a molten state, so that the formed anti-stick coating 4 has a porous structure. The ceramic powder is a mixture of titanium oxide powder, silicon carbide powder and zirconium oxide powder, and the ratio of the three can be arbitrarily configured, and the particle size of the titanium oxide powder, silicon carbide powder and zirconium oxide powder is controlled at 10~50μm. The resin powder is a mixture of polyethylene particles, polytetrafluoroethylene particles and polysiloxane particles, and the ratio of the three can be arbitrarily configured, and the particle size of the polyethylene particles, polytetrafluoroethylene particles and polysiloxane particles is controlled at 10~50μm.

[0067] The process of melt spraying of the anti-stick coating can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 50V, current: 220A, and working gas: N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2: 0.5MPa, powder feeding speed 50L / min, using the above current and voltage data to adjust to the appropriate power, utilizing the difference in melting points between the ceramic powder and the resin powder, the ceramic powder is in a molten state on the surface and the resin powder is in a molten state for spraying, constructing a hard coating with a porous structure on the surface of the cookware, and utilizing the oil storage function of the porous structure to effectively achieve a non-stick effect.

[0068] Embodiment 9, refer to Figure 1 A magnesium alloy cookware comprises a magnesium alloy substrate layer 1, on which a micro-arc oxidation layer 2 is formed by a micro-arc oxidation process.

[0069] A protective coating 3 capable of penetrating into the pores of the micro-arc oxidation layer is also provided on the micro-arc oxidation layer 2. An anti-stick coating 4 is also provided on the protective coating 3.

[0070] In this embodiment, the protective coating 3 includes component A and component B, component A is resin powder, component B is ceramic powder, and the mass ratio of component A to component B is 25:7. After component A and component B are evenly mixed, they are melt-sprayed on the micro-arc oxidation layer 2, and the resin powder is melted and penetrated into the pores of the micro-arc oxidation film layer after thermal spraying. The resin powder is a mixture of polyethylene particles, polysiloxane particles, and polycarbonate particles, and the proportion of the three can be arbitrarily configured. The particle size of polyethylene particles, polysiloxane particles, and polycarbonate particles is controlled between 10 and 50 μm. The ceramic powder is alumina powder, and the particle size of alumina powder is controlled between 10 and 80 μm.

[0071] The protective coating melt spraying process can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 60V, current: 240A, and working gas is N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min.

[0072] In this embodiment, the anti-stick coating 4 includes a C component and a D component, wherein the C component is a ceramic powder, the D component is a resin powder, and the mass ratio of the C component to the D component is 10:3; after the C component and the D component are evenly mixed, they are melt-sprayed on the protective coating 3, wherein the ceramic powder is in a surface molten state, and the resin powder is in a molten state, so that the formed anti-stick coating 4 has a porous structure. The ceramic powder is titanium nitride particles, and the particle size of the titanium nitride particles is controlled at 10~50μm. The resin powder is a mixture of polyphenyl parahydroxybenzoate particles, polytetrafluoroethylene particles and polysiloxane particles, and the proportion of the three can be arbitrarily configured, and the particle size of the polyphenyl parahydroxybenzoate particles, polytetrafluoroethylene particles and polysiloxane particles is controlled at 10~50μm.

[0073] The process of melt spraying of the anti-stick coating can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 50V, current: 220A, and working gas: N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min, using the above current and voltage data to adjust to the appropriate power, utilizing the difference in melting points between the ceramic powder and the resin powder, the ceramic powder is in a molten state on the surface and the resin powder is in a molten state for spraying, constructing a hard coating with a porous structure on the surface of the cookware, and utilizing the oil storage function of the porous structure to effectively achieve a non-stick effect.

[0074] Embodiment 10, reference Figure 1 A magnesium alloy cookware comprises a magnesium alloy substrate layer 1, on which a micro-arc oxidation layer 2 is formed by a micro-arc oxidation process.

[0075] A protective coating 3 capable of penetrating into the pores of the micro-arc oxidation layer is also provided on the micro-arc oxidation layer 2. An anti-stick coating 4 is also provided on the protective coating 3.

[0076] In this embodiment, the protective coating 3 includes component A and component B, component A is resin powder, component B is ceramic powder, and the mass ratio of component A to component B is 5:1. After component A and component B are evenly mixed, they are melt-sprayed on the micro-arc oxidation layer 2, and the resin powder is melted and penetrated into the pores of the micro-arc oxidation film layer after thermal spraying. The resin powder is a mixture of polytetrafluoroethylene particles, polyethylene particles, polysiloxane particles, and polycarbonate particles. The proportion of the four can be arbitrarily configured, and the particle size of tetrafluoroethylene particles, polyethylene particles, polysiloxane particles, and polycarbonate particles is controlled between 10 and 50 μm. The ceramic powder is zirconium oxide powder, and the particle size of zirconium oxide powder is controlled between 10 and 80 μm.

[0077] The protective coating melt spraying process can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 60V, current: 240A, and working gas is N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min.

[0078] In this embodiment, the anti-stick coating 4 includes a C component and a D component, wherein the C component is a ceramic powder, the D component is a resin powder, and the mass ratio of the C component to the D component is 5:1; after the C component and the D component are evenly mixed, they are melt-sprayed on the protective coating 3, wherein the ceramic powder is in a surface molten state, and the resin powder is in a molten state, so that the formed anti-stick coating 4 has a porous structure. The ceramic powder is titanium nitride particles and titanium oxide particles, and the ratio of the two can be arbitrarily configured, and the particle size of the titanium nitride particles and the titanium oxide particles is controlled at 10~50μm. The resin powder is a mixture of polytetrafluoroethylene particles, polyethylene particles, polycarbonate particles, polyphenyl parahydroxybenzoate particles, and polysiloxane particles, and the ratio of the five can be arbitrarily configured, and the particle size of the polytetrafluoroethylene particles, polyethylene particles, polycarbonate particles, polyphenyl parahydroxybenzoate particles, and polysiloxane particles is controlled at 10~50μm.

[0079] The process of melt spraying of the anti-stick coating can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 50V, current: 220A, and working gas: N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2: 0.5MPa, powder feeding speed 50L / min, using the above current and voltage data to adjust to the appropriate power, utilizing the difference in melting points between the ceramic powder and the resin powder, the ceramic powder is in a molten state on the surface and the resin powder is in a molten state for spraying, constructing a hard coating with a porous structure on the surface of the cookware, and utilizing the oil storage function of the porous structure to effectively achieve a non-stick effect.

[0080] Example 11, refer to Figure 1 A magnesium alloy cookware comprises a magnesium alloy substrate layer 1, on which a micro-arc oxidation layer 2 is formed by a micro-arc oxidation process.

[0081] A protective coating 3 capable of penetrating into the pores of the micro-arc oxidation layer is also provided on the micro-arc oxidation layer 2. An anti-stick coating 4 is also provided on the protective coating 3.

[0082] In this embodiment, the protective coating 3 includes component A and component B, component A is resin powder, component B is ceramic powder, and the mass ratio of component A to component B is 10:3. After component A and component B are evenly mixed, they are melt-sprayed on the micro-arc oxidation layer 2, and the resin powder is melted and penetrated into the pores of the micro-arc oxidation film layer by thermal spraying. The resin powder is a mixture of polyethylene particles, polysiloxane particles, and polycarbonate particles, and the proportion of the three can be arbitrarily configured. The particle size of polyethylene particles, polysiloxane particles, and polycarbonate particles is controlled between 10 and 50 μm. The ceramic powder is titanium nitride powder, and the particle size of titanium nitride powder is controlled between 10 and 80 μm.

[0083] The protective coating melt spraying process can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 60V, current: 240A, and working gas is N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min.

[0084] In this embodiment, the anti-stick coating 4 includes a C component and a D component, wherein the C component is a ceramic powder, the D component is a resin powder, and the mass ratio of the C component to the D component is 5:1; after the C component and the D component are evenly mixed, they are melt-sprayed on the protective coating 3, wherein the ceramic powder is in a surface molten state, and the resin powder is in a molten state, so that the formed anti-stick coating 4 has a porous structure. The ceramic powder is a mixture of titanium oxide powder, aluminum oxide powder, zirconium oxide powder, titanium nitride powder, and silicon carbide powder, and the proportion of the five can be arbitrarily configured, and the particle size of the titanium oxide powder, aluminum oxide powder, zirconium oxide powder, titanium nitride powder, and silicon carbide powder is controlled at 10~50μm. The resin powder is a mixture of polytetrafluoroethylene particles, polyethylene particles, polycarbonate particles, and polyphenyl parahydroxybenzoate particles, and the proportion of the four can be arbitrarily configured, and the particle size of the polytetrafluoroethylene particles, polyethylene particles, polycarbonate particles, and polyphenyl parahydroxybenzoate particles is controlled at 10~50μm.

[0085] The process of melt spraying of the anti-stick coating can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 50V, current: 220A, and working gas: N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min, using the above current and voltage data to adjust to the appropriate power, utilizing the difference in melting points between the ceramic powder and the resin powder, the ceramic powder is in a molten state on the surface and the resin powder is in a molten state for spraying, constructing a hard coating with a porous structure on the surface of the cookware, and utilizing the oil storage function of the porous structure to effectively achieve a non-stick effect.

[0086] Example 12, refer to Figure 1 A magnesium alloy cookware comprises a magnesium alloy substrate layer 1, on which a micro-arc oxidation layer 2 is formed by a micro-arc oxidation process.

[0087] A protective coating 3 capable of penetrating into the pores of the micro-arc oxidation layer is also provided on the micro-arc oxidation layer 2. An anti-stick coating 4 is also provided on the protective coating 3.

[0088] In this embodiment, the protective coating 3 includes component A and component B, component A is resin powder, component B is ceramic powder, and the mass ratio of component A to component B is 4:1. After component A and component B are evenly mixed, they are melt-sprayed on the micro-arc oxidation layer 2, and the resin powder is melted and penetrated into the pores of the micro-arc oxidation film layer by thermal spraying. The resin powder is a mixture of polytetrafluoroethylene particles, polysiloxane particles, and polycarbonate particles, and the proportion of the three can be arbitrarily configured. The particle size of polytetrafluoroethylene particles, polysiloxane particles, and polycarbonate particles is controlled between 10 and 50 μm. The ceramic powder is silicon carbide powder, and the particle size of silicon carbide powder is controlled between 10 and 80 μm.

[0089] The protective coating melt spraying process can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 60V, current: 240A, and working gas is N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min.

[0090] In this embodiment, the anti-stick coating 4 includes a C component and a D component, wherein the C component is a ceramic powder, the D component is a resin powder, and the mass ratio of the C component to the D component is 20:3; after the C component and the D component are evenly mixed, they are melt-sprayed on the protective coating 3, wherein the ceramic powder is in a surface melting state, and the resin powder is in a melting state, so that the formed anti-stick coating 4 has a porous structure. The ceramic powder is a mixture of titanium oxide powder, aluminum oxide powder, zirconium oxide powder, and titanium nitride powder, and the ratio of the four can be arbitrarily configured, and the particle size of the titanium oxide powder, aluminum oxide powder, zirconium oxide powder, and titanium nitride powder is controlled at 10~50μm. The resin powder is a mixture of polytetrafluoroethylene particles, polycarbonate particles, and polyphenyl parahydroxybenzoate particles, and the ratio of the three can be arbitrarily configured, and the particle size of the polytetrafluoroethylene particles, polycarbonate particles, and polyphenyl parahydroxybenzoate particles is controlled at 10~50μm.

[0091] The process of melt spraying of the anti-stick coating can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 50V, current: 220A, and working gas: N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2: 0.5MPa, powder feeding speed 50L / min, using the above current and voltage data to adjust to the appropriate power, utilizing the difference in melting points between the ceramic powder and the resin powder, the ceramic powder is in a molten state on the surface and the resin powder is in a molten state for spraying, constructing a hard coating with a porous structure on the surface of the cookware, and utilizing the oil storage function of the porous structure to effectively achieve a non-stick effect.

[0092] Example 13, refer to Figure 1 A magnesium alloy cookware comprises a magnesium alloy substrate layer 1, on which a micro-arc oxidation layer 2 is formed by a micro-arc oxidation process.

[0093] A protective coating 3 capable of penetrating into the pores of the micro-arc oxidation layer is also provided on the micro-arc oxidation layer 2. An anti-stick coating 4 is also provided on the protective coating 3.

[0094] In this embodiment, the protective coating 3 includes component A and component B, component A is resin powder, component B is ceramic powder, and the mass ratio of component A to component B is 10:1. After component A and component B are evenly mixed, they are melt-sprayed on the micro-arc oxidation layer 2, and the resin powder is melted and penetrated into the pores of the micro-arc oxidation film layer after thermal spraying. The resin powder is a mixture of polytetrafluoroethylene particles and polycarbonate particles, and the ratio between the two can be arbitrarily configured. The particle size of polytetrafluoroethylene particles and polycarbonate particles is controlled between 10 and 50 μm. The ceramic powder is a mixture of titanium oxide powder and zirconium oxide powder, and the ratio between the two can be arbitrarily configured. The particle size of titanium oxide powder and zirconium oxide powder is controlled between 10 and 80 μm.

[0095] The protective coating melt spraying process can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 60V, current: 240A, and working gas is N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min.

[0096] In this embodiment, the anti-stick coating 4 includes a C component and a D component, wherein the C component is a ceramic powder, the D component is a resin powder, and the mass ratio of the C component to the D component is 20:9; after the C component and the D component are evenly mixed, they are melt-sprayed on the protective coating 3, wherein the ceramic powder is in a surface molten state, and the resin powder is in a molten state, so that the formed anti-stick coating 4 has a porous structure. The ceramic powder is a mixture of titanium oxide powder, aluminum oxide powder, zirconium oxide powder, and silicon carbide powder, and the ratio of the four can be arbitrarily configured, and the particle size of the titanium oxide powder, aluminum oxide powder, zirconium oxide powder, and silicon carbide powder is controlled at 10~50μm. The resin powder is a mixture of polytetrafluoroethylene particles, polycarbonate particles, polyphenyl parahydroxybenzoate particles, and polysiloxane particles, and the ratio of the four can be arbitrarily configured, and the particle size of the polytetrafluoroethylene particles, polycarbonate particles, polyphenyl parahydroxybenzoate particles, and polysiloxane particles is controlled at 10~50μm.

[0097] The process of melt spraying of the anti-stick coating can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 50V, current: 220A, and working gas: N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min, using the above current and voltage data to adjust to the appropriate power, utilizing the difference in melting points between the ceramic powder and the resin powder, the ceramic powder is in a molten state on the surface and the resin powder is in a molten state for spraying, constructing a hard coating with a porous structure on the surface of the cookware, and utilizing the oil storage function of the porous structure to effectively achieve a non-stick effect.

[0098] Example 14, refer to Figure 1 A magnesium alloy cookware comprises a magnesium alloy substrate layer 1, on which a micro-arc oxidation layer 2 is formed by a micro-arc oxidation process.

[0099] A protective coating 3 capable of penetrating into the pores of the micro-arc oxidation layer is also provided on the micro-arc oxidation layer 2. An anti-stick coating 4 is also provided on the protective coating 3.

[0100] In this embodiment, the protective coating 3 includes component A and component B, component A is resin powder, component B is ceramic powder, and the mass ratio of component A to component B is 10:1.7. After component A and component B are evenly mixed, they are melt-sprayed on the micro-arc oxidation layer 2, and the resin powder is melted and penetrated into the pores of the micro-arc oxidation film layer after thermal spraying. The resin powder is a mixture of polytetrafluoroethylene particles, polycarbonate particles, and polysiloxane particles. The ratio of the three can be arbitrarily configured, and the particle size of polytetrafluoroethylene particles, polycarbonate particles, and polysiloxane particles is controlled between 10 and 50 μm. The ceramic powder is a mixture of titanium oxide powder, zirconium oxide powder, and aluminum oxide powder. The ratio between the three can be arbitrarily configured, and the particle size of titanium oxide powder, zirconium oxide powder, and aluminum oxide powder is controlled between 10 and 80 μm.

[0101] The protective coating melt spraying process can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 60V, current: 240A, and working gas is N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min.

[0102] In this embodiment, the anti-stick coating 4 includes a C component and a D component, wherein the C component is a ceramic powder, the D component is a resin powder, and the mass ratio of the C component to the D component is 40:11; after the C component and the D component are evenly mixed, they are melt-sprayed on the protective coating 3, wherein the ceramic powder is in a surface melting state, and the resin powder is in a melting state, so that the formed anti-stick coating 4 has a porous structure. The ceramic powder is a mixture of titanium oxide powder, aluminum oxide powder, zirconium oxide powder, and titanium nitride powder, and the ratio of the four can be arbitrarily configured, and the particle size of the titanium oxide powder, aluminum oxide powder, zirconium oxide powder, and titanium nitride powder is controlled at 10~50μm. The resin powder is a mixture of polytetrafluoroethylene particles, polycarbonate particles, polyphenyl parahydroxybenzoate particles, and polysiloxane particles, and the ratio of the four can be arbitrarily configured, and the particle size of the polytetrafluoroethylene particles, polycarbonate particles, polyphenyl parahydroxybenzoate particles, and polysiloxane particles is controlled at 10~50μm.

[0103] The process of melt spraying of the anti-stick coating can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 50V, current: 220A, and working gas: N 2 , Ar and H 2 , where: N2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min, using the above current and voltage data to adjust to the appropriate power, utilizing the difference in melting points between the ceramic powder and the resin powder, the ceramic powder is in a molten state on the surface and the resin powder is in a molten state for spraying, constructing a hard coating with a porous structure on the surface of the cookware, and utilizing the oil storage function of the porous structure to effectively achieve a non-stick effect.

[0104] Example 15, refer to Figure 1 A magnesium alloy cookware comprises a magnesium alloy substrate layer 1, on which a micro-arc oxidation layer 2 is formed by a micro-arc oxidation process.

[0105] A protective coating 3 capable of penetrating into the pores of the micro-arc oxidation layer is also provided on the micro-arc oxidation layer 2. An anti-stick coating 4 is also provided on the protective coating 3.

[0106] In this embodiment, the protective coating 3 includes component A and component B, component A is resin powder, component B is ceramic powder, and the mass ratio of component A to component B is 50:9. After component A and component B are evenly mixed, they are melt-sprayed on the micro-arc oxidation layer 2, and the resin powder is melted and penetrated into the pores of the micro-arc oxidation film layer by thermal spraying. The resin powder is a mixture of polytetrafluoroethylene particles, polycarbonate particles, polysiloxane particles, and polyethylene particles. The ratio of the four can be arbitrarily configured, and the particle size of polytetrafluoroethylene particles, polycarbonate particles, polysiloxane particles, and polyethylene particles is controlled between 10 and 50 μm. The ceramic powder is a mixture of titanium oxide powder, aluminum oxide powder, zirconium oxide powder, titanium nitride powder, and silicon carbide powder. The ratio between the five can be arbitrarily configured, and the particle size of titanium oxide powder, aluminum oxide powder, zirconium oxide powder, titanium nitride powder, and silicon carbide powder is controlled between 10 and 80 μm.

[0107] The protective coating melt spraying process can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 60V, current: 240A, and working gas is N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min.

[0108] In this embodiment, the anti-stick coating 4 includes a C component and a D component, wherein the C component is a ceramic powder, the D component is a resin powder, and the mass ratio of the C component to the D component is 40:3; after the C component and the D component are evenly mixed, they are melt-sprayed on the protective coating 3, wherein the ceramic powder is in a surface molten state, and the resin powder is in a molten state, so that the formed anti-stick coating 4 has a porous structure. The ceramic powder is a mixture of titanium oxide powder, aluminum oxide powder, zirconium oxide powder, and titanium nitride powder, and the ratio of the four can be arbitrarily configured, and the particle size of the titanium oxide powder, aluminum oxide powder, zirconium oxide powder, and titanium nitride powder is controlled at 10~50μm. The resin powder is a mixture of polytetrafluoroethylene particles, polycarbonate particles, polyphenyl parahydroxybenzoate particles, polysiloxane particles, and polyethylene particles, and the ratio of the five can be arbitrarily configured, and the particle size of the polytetrafluoroethylene particles, polycarbonate particles, polyphenyl parahydroxybenzoate particles, polysiloxane particles, and polyethylene particles is controlled at 10~50μm.

[0109] The process of melt spraying of the anti-stick coating can be flame thermal spraying, plasma spraying, or laser cladding, all of which can achieve the purpose. In this embodiment, plasma spraying is adopted, and the plasma spraying parameters are voltage: 50V, current: 220A, and working gas: N 2 , Ar and H 2 , where: N 2 :0.7MPa,Ar :0.7MPa ,H 2 : 0.5MPa, powder feeding speed 50L / min, using the above current and voltage data to adjust to the appropriate power, utilizing the difference in melting points between the ceramic powder and the resin powder, the ceramic powder is in a molten state on the surface and the resin powder is in a molten state for spraying, constructing a hard coating with a porous structure on the surface of the cookware, and utilizing the oil storage function of the porous structure to effectively achieve a non-stick effect.

[0110] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0111] The above is an explanation of the embodiments of the present invention. However, the present invention is not limited to the above embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A magnesium alloy cookware, comprising a magnesium alloy substrate layer, a micro-arc oxidation layer formed on the substrate layer by a micro-arc oxidation process, characterized in that: A protective coating capable of penetrating into the pores of the micro-arc oxidation layer is also provided on the micro-arc oxidation layer; An anti-stick coating is also provided on the protective coating.

2. The magnesium alloy cookware according to claim 1, characterized in that: The protective coating comprises component A and component B, component A is resin powder, component B is metal powder or ceramic powder, and the mass ratio of component A to component B is 10:1-3; After the A component and the B component are uniformly mixed, they are melt-sprayed on the micro-arc oxidation layer, and the resin powder is melted and infiltrated into the pores of the micro-arc oxidation film layer through thermal spraying.

3. The magnesium alloy cookware according to claim 2, characterized in that: The resin powder is polytetrafluoroethylene particles, polyethylene particles, polycarbonate particles, polysiloxane particles, or any combination of the above resin powders, and the particle size of the resin powder is 10-50 μm; The metal powder is stainless steel powder, titanium powder, aluminum powder, or any combination of the above metal powders, and the particle size of the metal powder is 10-80 μm; The ceramic powder is titanium oxide powder, aluminum oxide powder, zirconium oxide powder, titanium nitride powder, silicon carbide powder, or any combination of the above ceramic powders, and the particle size of the ceramic powder is 10-80 μm.

4. The magnesium alloy cookware according to claim 2, characterized in that: The protective coating material is melt-sprayed on the micro-arc oxidation layer by flame thermal spraying, plasma spraying or laser cladding.

5. The magnesium alloy cookware according to claim 4, characterized in that: The protective coating material is melt-sprayed on the micro-arc oxidation layer by plasma spraying. The plasma spraying parameters are voltage: 60V, current: 240A, working gas: N2, Ar and H2, wherein: N2: 0.7MPa, Ar: 0.7MPa, H2: 0.5MPa, powder feeding speed 50L / min.

6. The magnesium alloy cookware according to claim 1, characterized in that: The anti-stick coating comprises a component C and a component D, wherein the component C is a ceramic powder, the component D is a resin powder, and the mass ratio of the component C to the component D is 20:1-10; After the C component and the D component are uniformly mixed, they are melt-sprayed on the protective coating, wherein the ceramic powder is in a surface molten state and the resin powder is in a molten state, so that the formed anti-stick coating has a porous structure.

7. The magnesium alloy cookware according to claim 6, characterized in that: The ceramic powder is titanium oxide powder, aluminum oxide powder, zirconium oxide powder, titanium nitride powder, silicon carbide powder, or any combination of the above ceramic powders, and the particle size of the ceramic powder is 10-50 μm; The resin powder is polytetrafluoroethylene particles, polyethylene particles, polycarbonate particles, polyphenyl parahydroxybenzoate particles, polysiloxane particles, or any combination of the above resin powders, and the particle size of the resin powder is 10-50 μm.

8. The magnesium alloy cookware according to claim 6, characterized in that: The anti-stick coating material is melt-sprayed on the protective coating by flame thermal spraying, plasma spraying or laser cladding.

9. The magnesium alloy cookware according to claim 8, characterized in that: The anti-stick coating material is melt-sprayed on the protective coating by plasma spraying. The plasma spraying parameters are voltage: 50V, current: 220A, and working gas is N2, Ar and H2, wherein: N2: 0.7MPa, Ar: 0.7MPa, H2: 0.5MPa, powder feeding speed 50L / min.

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