CN108784387A - Cookware and preparation method thereof, cooking apparatus - Google Patents

Cookware and preparation method thereof, cooking apparatus Download PDF

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Publication number
CN108784387A
CN108784387A CN201710304122.3A CN201710304122A CN108784387A CN 108784387 A CN108784387 A CN 108784387A CN 201710304122 A CN201710304122 A CN 201710304122A CN 108784387 A CN108784387 A CN 108784387A
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CN
China
Prior art keywords
layer
cookware
pan
protective layer
side wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710304122.3A
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Chinese (zh)
Inventor
李康
曹达华
李兴航
杨玲
李洪伟
屈雪平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Original Assignee
Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd filed Critical Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority to CN201710304122.3A priority Critical patent/CN108784387A/en
Publication of CN108784387A publication Critical patent/CN108784387A/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/002—Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/02—Coating starting from inorganic powder by application of pressure only
    • C23C24/04—Impact or kinetic deposition of particles
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
    • 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
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C23C4/11—Oxides
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Food Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Cookers (AREA)

Abstract

The present invention provides the cooking apparatus of a kind of cookware, the preparation method and application of the cookware cookware.The cookware includes the bottom of a pan and the side wall that is connect with the bottom of a pan; the bottom of a pan and/or the outer surface of side wall form matcoveredn; the protective layer is mixture layer or pure nitride layer, and the pure nitride layer is alumina layer, zirconium oxide layer, titanium oxide layer or magnesium oxide layer；The mixture layer contains at least two in aluminium oxide, zirconium oxide, titanium oxide and magnesia.The present invention has preferable corrosion resistance and antirust ability using the cooking apparatus of the cookware.

Description

Cookware and preparation method thereof, cooking apparatus
Technical field
The present invention relates to the preparation method and applications of cooking apparatus technical field more particularly to a kind of cookware, the cookware should The cooking apparatus of cookware.
Background technology
The bottom of a pan of cooking apparatus is usually made by the non magnetic or weak magnetic materials such as aluminium alloy, 304 stainless steels or ceramics. Since non magnetic or weak magnetic material electromagnetic heating function is poor, it is magnetic that one layer of tool usually is set in the outer surface in the bottom of a pan 430 stainless steel layers, the 430 stainless steel layer part cover the bottom of a pan.430 stainless steel layer can under the action of high-frequency alternating magnetic field shape At stronger eddy current effect, to carry out sensing heating.Since the preparation process of 430 stainless steel layer is complicated, and 430 stainless steels The layer only part covering the bottom of a pan so that its electromagnetic heating power is smaller, causes the electromagnetic heating of the cooking apparatus less efficient.
Further, the part the bottom of a pan of cooking apparatus and 430 stainless steel layers are both exposed in air, lead to corrosive medium meeting The bottom of a pan and 430 stainless steel layers are invaded, the bottom of a pan and 430 stainless steel layers is caused easily to be corroded and get rusty.
Invention content
In view of the above problems, the present invention provides a kind of cookwares, it is intended to solve the corrosion-resistant of cooking apparatus in the prior art Property difference and the relatively low problem of antirust ability.
In order to solve the above technical problems, cookware provided by the invention includes the bottom of a pan and the side wall that is connect with the bottom of a pan, institute The outer surface for stating the bottom of a pan and/or side wall forms matcoveredn, and the protective layer is mixture layer or pure nitride layer, the pure substance Layer is alumina layer, zirconium oxide layer, titanium oxide layer or magnesium oxide layer；The mixture layer contains aluminium oxide, zirconium oxide, titanium oxide And at least two in magnesia.
Further, the thickness range of the protective layer is 10~100 μm.
Further, it is also formed with magnetic layer between the bottom of a pan and/or the outer surface and the protective layer of side wall, it is described Magnetic layer material is at least one of iron, ferroalloy, ferromanganese, ferro-silicium and sendust.
Further, in the ferroalloy, ferromanganese, ferro-silicium and sendust, the content of ferro element is not small In 80%.
Further, in the ferroalloy, ferromanganese, ferro-silicium and sendust, the content of ferro element is not small In 98%.
Further, the porosity of the magnetic layer is 0.1~1%.
Further, the thickness range of the magnetic layer is 0.2~2mm.
Further, the cookware further includes at least one layer of decorative layer for being formed in the protective layer.
Further, the cookware further includes linkage section, and the bottom of a pan is connect by the linkage section with the side wall, institute The outer surface for stating linkage section is formed with the protective layer.
The present invention also provides a kind of preparation method of cookware, which includes the following steps：
Cookware crude green body is provided, which includes the bottom of a pan and the side wall that is connect with the bottom of a pan；
Form protective layer in the bottom of a pan and/or the outer surface of side wall by spray treatment, the protective layer be mixture layer or Pure nitride layer, the pure nitride layer are alumina layer, zirconium oxide layer, titanium oxide layer or magnesium oxide layer；The mixture layer contains At least two in aluminium oxide, zirconium oxide, titanium oxide and magnesia.
The present invention also provides a kind of cooking apparatus, including pedestal and the coil panel for being contained in the pedestal, the cooking pots Tool further includes the cookware, and the cookware is detachably arranged at pedestal, and the coil panel is located at below cookware, and opposite with cookware Setting.
Further, the vertical distance range of the cookware and coil panel is 2~5mm.
The cookware of the present invention forms protective layer to the outer surface less than the bottom of a pan by spray treatment, and protective layer is mixture layer Or pure nitride layer, the pure nitride layer are alumina layer, zirconium oxide layer, titanium oxide layer or magnesium oxide layer, the mixture layer contains There are at least two in aluminium oxide, zirconium oxide, titanium oxide and magnesia so that the protective layer can prevent corrosive medium from invading and leading Cookware is caused to be corroded or get rusty, to improve the corrosion resistance and antirust ability of cookware.Further, contain metal oxygen in protective layer Compound so that protective layer has higher hardness so that protective layer has certain wear-resisting property.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the sectional view of the part-structure of one embodiment of cookware of the present invention.
Drawing reference numeral explanation：
Label Title Label Title
100 Cookware 50 Protective layer
10 The bottom of a pan 70 Decorative layer
30 Magnetic layer
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Base Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention In explaining relative position relation, motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result, Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can To be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical solution occurs Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model Within enclosing.
Please refer to Fig. 1, the present invention provides a kind of cookware 100.
The cookware 100 includes the bottom of a pan 10 and the side wall that is connect with the bottom of a pan 10, the bottom of a pan 10 and/or side wall Outer surface is formed at least one layer of protective layer 50, and the protective layer 50 is mixture layer or pure nitride layer, and the pure nitride layer is Alumina layer, zirconium oxide layer, titanium oxide layer or magnesium oxide layer；The mixture layer contains aluminium oxide, zirconium oxide, titanium oxide and oxygen Change at least two in magnesium.
The material of cookware 100 can be stainless steel, aluminium alloy or ceramics.
In one embodiment of the invention, cookware 100 includes two layers of protective layer 50.Every layer of protective layer 50 is mixture layer or pure Net nitride layer.Two layers of protective layer 50 can be that two layers of mixture layer or two layers of pure nitride layer or one layer of mixture layer and one layer are pure Nitride layer.
Protective layer 50 can be formed in the surface of magnetic layer 30 by way of spraying.
The cookware 100 of technical solution of the present invention forms protective layer 50 to the outer surface less than the bottom of a pan 10 by spray treatment, Protective layer 50 be mixture layer or pure nitride layer, pure nitride layer be alumina layer, zirconium oxide layer, titanium oxide layer or magnesium oxide layer, Mixture layer contains at least two in aluminium oxide, zirconium oxide, titanium oxide and magnesia so that the protective layer 50 can prevent from corroding Medium invades and cookware is caused to be corroded or get rusty, to improve the corrosion resistance and antirust ability of cookware 100.Further, it protects Contain metal oxide in sheath 50 so that protective layer 50 has higher hardness so that protective layer 50 has centainly wear-resisting Performance.
The thickness of the protective layer 50 is 10~100 μm.Preferably 20~50 μm.
The thickness of protective layer 50 is set as 10~100 μm by technical solution of the present invention so that protective layer 50 can be to magnetic layer 30 form preferable protective effect.
It is also formed with magnetic layer 30 between the bottom of a pan 10 and/or the outer surface and the protective layer 50 of side wall, it is described to lead 30 material of magnetosphere is at least one of iron, ferroalloy, ferromanganese, ferro-silicium and sendust.
The cookware 100 of technical solution of the present invention to the outer surface less than the bottom of a pan 10 is formed with magnetic layer 30, the magnetic layer 30 materials are at least one of iron, ferroalloy, ferromanganese, ferro-silicium and sendust, the iron member in magnetic layer 30 Element forms stronger eddy current effect under the action of high-frequency alternating magnetic field, to carry out sensing heating so that the cookware 30 has Preferable electromagnetic heating efficiency.
In the ferroalloy, ferromanganese, ferro-silicium and sendust, the content of ferro element is not less than 80%.
Preferably, in the ferroalloy, ferromanganese, ferro-silicium and sendust, the content of ferro element is not less than 98%.
When the magnetic layer 30 of technical solution of the present invention is alloy, the content of the ferro element contained is higher so that in electromagnetism In heating process, the ferro element of magnetic layer 30 can form stronger eddy current effect under the action of high-frequency alternating magnetic field, be felt It should heat so that there is preferable electromagnetic heating efficiency using the cooking apparatus of the cookware 100.
The porosity of the magnetic layer 30 is 0.1~1%.Preferably, porosity is less than 0.5%.
The porosity of the magnetic layer 30 of technical solution of the present invention is 0.1~1%, and magnetic layer 30 has preferable compactness, So that magnetic layer 30 has preferable electromagnetic heating efficiency.
The thickness range of the magnetic layer 30 is 0.2~2mm, preferably 0.25~0.6mm.
The thickness range of the magnetic layer 30 of technical solution of the present invention is set as 0.2~2mm, so that magnetic layer 30 has preferably Electromagnetic heating efficiency, quickly to be heated to the food in cookware 100.
The cookware 100 further includes at least one layer of decorative layer 70 for being formed in 50 surface of the protective layer.
The material of decorative layer 70 can be resin, such as silicones, fluororesin or epoxy resin.
The thickness range of decorative layer 70 is 10~60 μm, preferably 15~40 μm.
Decorative layer 70 can be formed in the surface of protective layer 50 by way of spraying.
Cookware 100 can form two layers of decorative layer 70.
In a preferred embodiment of the invention, the surface of magnetic layer 30 is sequentially formed with layer protective layer 50 and two layers of decoration Layer 70.
Technical solution of the present invention forms decorative layer 70 in the surface of protective layer 50, so that cookware 100 has preferable appearance. Further, the material of decorative layer 70 can be resin so that decorative layer 70 also has antirust and corrosion resistant effect.Further Ground, decorative layer 70 can also make cookware 100 have certain wear-resisting property.
The cookware 100 further includes linkage section, and the bottom of a pan 10 is connect by the linkage section with the side wall, the company The outer surface for connecing section is formed with the magnetic layer 30 and/or the protective layer 50.
Since the magnetic layer 30 of changeover portion outer surface uses whole technical solutions of above-mentioned all embodiments, at least All advantageous effects caused by technical solution with above-described embodiment, this is no longer going to repeat them.
Technical solution of the present invention can enhance the electromagnetic heating of cookware 100 when the outer surface of changeover portion forms magnetic layer 30 Efficiency.
Technical solution of the present invention forms protective layer 50 in the outer surface of changeover portion, to enhance the antirust ability of cookware 100, prevent Corrosive power and wear-resisting property.
The present invention also provides a kind of preparation methods of cookware.The preparation method includes the following steps：
Cookware crude green body is provided, which includes the bottom of a pan 10 and the side wall that is connect with the bottom of a pan 10；
By first time spray treatment magnetic layer 30, the magnetic layer 30 are formed in the bottom of a pan 10 and/or the outer surface of side wall Material is at least one of iron, ferroalloy, ferromanganese, ferro-silicium and sendust；
At least one layer of protective layer 50 is formed in the surface of magnetic layer 30 by second of spray treatment, the cookware is made 100。
In one embodiment, cookware crude green body further includes linkage section, and the bottom of a pan 10 is connect by the linkage section with the side wall, institute The outer surface for stating linkage section is also formed with the magnetic layer 30 and/or protective layer 50 by first time spray treatment.
The cookware 100 of technical solution of the present invention forms magnetic layer 30 to the outer surface less than the bottom of a pan 10 by spray treatment, 30 material of the magnetic layer is at least one of iron, ferroalloy, ferromanganese, ferro-silicium and sendust, magnetic layer Ferro element in 30 forms stronger eddy current effect under the action of high-frequency alternating magnetic field, to carry out sensing heating so that should Cookware 30 has preferable electromagnetic heating efficiency.
Further, the cookware 100 of technical solution of the present invention to the outer surface less than the bottom of a pan 10 is formed by spray treatment Protective layer 50, protective layer 50 be mixture layer or pure nitride layer, pure nitride layer be alumina layer, zirconium oxide layer, titanium oxide layer or Magnesium oxide layer, mixture layer contain at least two in aluminium oxide, zirconium oxide, titanium oxide and magnesia so that the protective layer 50 It can prevent corrosive medium from invading and cookware is caused to be corroded or get rusty, to improve the corrosion resistance and antirust ability of cookware 100.Into One step, contain metal oxide in protective layer 50 so that protective layer 50 has higher hardness so that protective layer 50 has one Fixed wear-resisting property.
After carrying out pre-treatment to cookware crude green body, magnetic layer is formed in the outer surface of cookware crude green body by first time spray treatment 30。
Pre-treatment can be the pretreatments such as oil removing and degreasing, so that cookware crude green body is into clean surface.
First time spray treatment can be that air force sprays.
Air force spraying may include following steps：
Air force flush coater is provided, the injection pressure that the air force flush coater is arranged is 2~5MPa, and injection temperation is 873~1273K, jet length are 20~50mm, are injection gas with nitrogen, dusty spray is sprayed to the appearance of cookware crude green body Face forms magnetic layer 30.Wherein, the purity of nitrogen is more than 99%.The material of dusty spray is iron, ferroalloy, ferromanganese, iron At least one of silicon alloy and sendust.The grain size of dusty spray is 10~40 μm.
In the ferroalloy, ferromanganese, ferro-silicium and sendust, the content of ferro element is not less than 80%.It is excellent Selection of land, in the ferroalloy, ferromanganese, ferro-silicium and sendust, the content of ferro element is not less than 98%.
The porosity of the magnetic layer 30 is 0.1~1%.Preferably, porosity is less than 0.5%.
The thickness range of the magnetic layer 30 is 0.2~2mm, preferably 0.25~0.6mm.
The content of ferro element is higher in the magnetic layer 30 of technical solution of the present invention so that during electromagnetic heating, iron member Element can form stronger eddy current effect under the action of high-frequency alternating magnetic field, carry out sensing heating so that using the cookware 100 Cooking apparatus has preferable electromagnetic heating efficiency.Further, the porosity of magnetic layer 30 is 0.1~1%, and magnetic layer 30 has There is preferable compactness so that magnetic layer 30 has preferable electromagnetic heating efficiency.Further, the thickness range of magnetic layer 30 It is set as 0.2~2mm, so that magnetic layer 30 has preferable electromagnetic heating efficiency, it is quick to be carried out to the food in cookware 100 Heating.
At least one layer of protective layer 50 is formed in the surface of magnetic layer 30 by second of spray treatment, the cookware is made 100。
Second of spray treatment can be plasma spraying, be formed in the surface of magnetic layer 30 by the way of plasma spraying Protective layer 50, specifically includes following steps：
There is provided plasma spraying machine, be arranged the plasma spraying machine spraying current be 450~550A, spray voltage be 60~ Dusty spray is heated to melting or semi-molten state by 80V, and adjustment spray gun air pressure is 0.3~0.4MPa, spray distance 150 ~300mm, spray gas are the mixed gas of argon gas and hydrogen, and setting argon flow amount is 3~4m3/ h, hydrogen flowing quantity 0.15 ~0.2m3/ h, spray gas blow to the dusty spray of melting or semi-molten state, by melting or the dusty spray of semi-molten state The outer surface of cookware crude green body is sprayed to, protective layer 50 is formed.Wherein, dusty spray is selected from aluminium oxide, zirconium oxide, titanium oxide and oxidation At least one of magnesium.The particle size range of dusty spray is 10~40 μm.
The protective layer 50 is mixture layer or pure nitride layer.
In one embodiment of the invention, cookware 100 includes two layers of protective layer 50.Every layer of protective layer 50 is mixture layer or pure Net nitride layer.Two layers of protective layer 50 can be that two layers of mixture layer or two layers of pure nitride layer or one layer of mixture layer and one layer are pure Nitride layer.
The pure nitride layer is alumina layer, zirconium oxide layer, titanium oxide layer or magnesium oxide layer；The mixture layer is containing aerobic Change at least two in aluminium, zirconium oxide, titanium oxide and magnesia.
The thickness of the protective layer 50 is 10~100 μm.Preferably 20~50 μm.
The protective layer 50 that technical solution of the present invention is formed by way of plasma spraying be mixture layer or pure nitride layer, Pure nitride layer is alumina layer, zirconium oxide layer, titanium oxide layer or magnesium oxide layer, and mixture layer contains aluminium oxide, zirconium oxide, oxidation At least two in titanium and magnesia, which has higher hardness, can be used as barrier layer, prevents corrosive medium from invading Magnetic layer 30 prevents magnetic layer 30 to be corroded or get rusty, to improve the corrosion resistance and antirust ability of cookware 100.Further, Protective layer 50 can also make cookware 100 have certain wear-resisting property.Further, the thickness of protective layer 50 is set as 10~100 μ M so that protective layer 50 can form preferable protective effect to magnetic layer 30.
Decorative layer 70 is formed in the surface of protective layer 50 to include the following steps：
Coating is provided, coating contains organic solvent and resin, and wherein organic solvent can be alcohol, ketone or alcohol ether etc., and resin can For silicones, fluororesin or epoxy resin；
Processing is filtered to coating, filtration treatment is the strainer filtering coating using 100~200 mesh；
Flush coater is provided, which includes spray gun, and bore is 1~1.5mm, and the spray pressure 0.15 of flush coater is arranged ~0.2MPa, spray distance are 20~30cm, and coating is sprayed into the surface of magnetic layer 30；
The dry cookware crude green body after spray treatment forms decorative layer 70.The drying process can be in 220 DEG C of temperature 10~15min of lower drying.
The thickness range of decorative layer 70 is 10~60 μm, preferably 15~40 μm.
It should be understood that two layers of decorative layer 70 can be formed in the surface of protective layer 50.
In a preferred embodiment of the invention, the surface of magnetic layer 30 is sequentially formed with layer protective layer 50 and two layers of decoration Layer 70.
Technical solution of the present invention forms decorative layer 70 in the surface of protective layer 50, so that cookware 100 has preferable appearance. Further, the material of decorative layer 70 can be resin so that decorative layer 70 also has antirust and corrosion resistant effect.Further Ground, decorative layer 70 can also make cookware 100 have certain wear-resisting property.
The present invention also provides a kind of cooking apparatus (not shown), including pedestal and the coil panel for being contained in the pedestal, institutes It further includes the cookware 100 to state cooking apparatus, and the cookware 100 is detachably arranged at pedestal, and the coil panel is located at cookware 100 Lower section, and be oppositely arranged with cookware 100.
Since the cooking apparatus uses whole technical solutions of above-mentioned all embodiments, at least there is above-mentioned implementation All advantageous effects caused by the technical solution of example, this is no longer going to repeat them.
The vertical distance range of the cookware 100 and coil panel is 2~5mm.It should be understood that cookware 100 and coil panel Between can be isolated by plastic part.
In a preferred embodiment of the present invention, coil panel has the shape to match with cookware 100 so that coil panel can be surround Cookware 100, so that cooking apparatus has preferable electromagnetic heating efficiency.
Embodiment 1
The preparation method of the cookware of the embodiment of the present invention 1 includes the following steps：
Cookware crude green body is provided, which includes the bottom of a pan 10 and the side wall that is connect with the bottom of a pan 10；
Pre-treatment is carried out to cookware crude green body, so that cookware crude green body surface cleaning；
Air force spray treatment is carried out to cookware crude green body, magnetic layer 30 is formed in 10 outer surface of the bottom of a pan, specifically, setting The injection pressure of the air force flush coater is 2MPa, and injection temperation 873K, jet length 20mm, with nitrogen, (purity is big In 99%) being injection gas, the iron powder that grain size is 10 μm is sprayed to the outer surface of cookware crude green body, it is 0.2mm's to form thickness The porosity of magnetic layer 30, magnetic layer 30 is 0.1%；
Plasma spraying processing is carried out to cookware crude green body, protective layer 50 is formed in 30 surface of magnetic layer, specifically, setting etc. The spraying current of plasma spray machine is 450A, spray voltage 60V, and titanium dioxide powder is heated to melting or semi-molten state, Adjustment spray gun air pressure is 0.3MPa, and spray distance 150mm, spray gas is the mixed gas of argon gas and hydrogen, and argon gas is arranged Flow is 3m3/ h, hydrogen flowing quantity 0.15m3/ h, spray gas blow to the titanium dioxide powder of melting or semi-molten state, will melt Or the titanium dioxide powder of semi-molten state sprays to the outer surface of cookware crude green body, forms the protective layer 50 that thickness is 20 μm, wherein oxygen The grain size for changing titanium powder is 10 μm；
Decorative layer 70 is formed in the surface of protective layer 50 and specifically provides coating, and coating contains absolute ethyl alcohol and silicon tree The spray pressure 0.15MPa of flush coater, spray distance 20cm, using mouth is arranged using the strainer filtering coating of 100 mesh in fat Diameter is that coating is sprayed to the surface of protective layer 50 by the spray gun of 1mm, forms the decorative layer 70 that thickness is 10 μm, embodiment 1 is made Cookware 100.
Embodiment 2
The preparation method of the cookware of the embodiment of the present invention 2 includes the following steps：
Cookware crude green body is provided, which includes the bottom of a pan 10 and the side wall that is connect with the bottom of a pan 10；
Pre-treatment is carried out to cookware crude green body, so that cookware crude green body surface cleaning；
Air force spray treatment is carried out to cookware crude green body, forms magnetic layer 30 in the bottom of a pan 10 and wall outer surface, specifically Ground, the injection pressure that the air force flush coater is arranged are 4MPa, injection temperation 1000K, jet length 40mm, with nitrogen (purity is more than 99%) is injection gas, and the sendust powder that grain size is 30 μm is sprayed to the outer surface of cookware crude green body, shape At the magnetic layer 30 that thickness is 1mm, the porosity of magnetic layer 30 is 0.3%；
First time plasma spraying processing is carried out to cookware crude green body, forms the first protective layer in 30 surface of magnetic layer, specifically Ground, the spraying current that plasma spraying machine is arranged are 500A, spray voltage 70V, and alumina powder is heated to melting or half Molten condition, adjustment spray gun air pressure are 0.3MPa, and spray distance 150mm, spray gas is the mixed gas of argon gas and hydrogen, Setting argon flow amount is 3.5m3/ h, hydrogen flowing quantity 0.18m3/ h, spray gas blow to the aluminium oxide of melting or semi-molten state The alumina powder of melting or semi-molten state is sprayed to the outer surface of cookware crude green body by powder, forms first that thickness is 40 μm Protective layer, the wherein grain size of alumina powder are 20 μm；
Second of plasma spraying processing is carried out to cookware crude green body, the second protective layer, tool are formed in the first protective layer Body, the spraying current that plasma spraying machine is arranged is 520A, spray voltage 65V, by the mixed powder of titanium oxide and aluminium oxide End is heated to melting or semi-molten state, and adjustment spray gun air pressure is 0.35MPa, and spray distance 200mm, spray gas is argon gas With the mixed gas of hydrogen, setting argon flow amount is 3.5m3/ h, hydrogen flowing quantity 0.18m3/ h, spray gas blow to melting or half The mixed-powder of melting or semi-molten state is sprayed to the outer surface of cookware crude green body by the mixed-powder of molten condition, forms thickness For 45 μm of the second protective layer, the wherein grain size of mixed-powder is 20 μm；
Decorative layer 70 is formed in the surface of the second protective layer and specifically provides coating, and coating contains ketone and fluororesin, adopts With the strainer filtering coating of 150 mesh, the spray pressure 0.18MPa of flush coater, spray distance 25cm are set, use bore for Coating is sprayed to the surface of the second protective layer by the spray gun of 1.2mm, forms the decorative layer 70 that thickness is 30 μm, and embodiment 2 is made Cookware 100.
Embodiment 3
The preparation method of the cookware of the embodiment of the present invention 3 includes the following steps：
Cookware crude green body is provided, which includes the bottom of a pan 10, side wall and changeover portion, the bottom of a pan 10 by changeover portion with Side wall connects；
Pre-treatment is carried out to cookware crude green body, so that cookware crude green body surface cleaning；
Air force spray treatment is carried out to cookware crude green body, magnetic conduction is formed in the bottom of a pan 10 and the outer surface of side wall and changeover portion Layer 30, specifically, the injection pressure that the air force flush coater is arranged is 5MPa, injection temperation 1273K, and jet length is 50mm is injection gas with nitrogen (purity is more than 99%), the ferro-silicium powder that grain size is 40 μm is sprayed to cookware crude green body Outer surface forms the magnetic layer 30 that thickness is 2mm, and the porosity of magnetic layer 30 is 0.5%；
Plasma spraying processing is carried out to cookware crude green body, protective layer 50 is formed in 30 surface of magnetic layer, specifically, setting etc. The spraying current of plasma spray machine is 550A, and the mixed-powder of titanium oxide and magnesia is heated to melting by spray voltage 80V Or semi-molten state, adjustment spray gun air pressure are 0.4MPa, spray distance 300mm, spray gas is the mixing of argon gas and hydrogen Gas, setting argon flow amount are 4m3/ h, hydrogen flowing quantity 0.2m3/ h, spray gas blow to melting or the mixing of semi-molten state The mixed gas of melting or semi-molten state is sprayed to the outer surface of cookware crude green body by gas, forms the protective layer that thickness is 100 μm 50, the wherein grain size of mixed-powder is 40 μm；
The first decorative layer is formed in the surface of protective layer 50 and specifically provides coating, and coating contains absolute ethyl alcohol and fluorine tree The spray pressure 0.19MPa of flush coater, spray distance 27cm, using mouth is arranged using the strainer filtering coating of 190 mesh in fat Diameter is that coating is sprayed to the surface of protective layer 50 by the spray gun of 1.3mm, forms the first decorative layer that thickness is 55 μm.
The second decorative layer is formed in the surface of protective layer 50 and specifically provides coating, and coating contains alcohol ether and asphalt mixtures modified by epoxy resin The spray pressure 0.2MPa of flush coater, spray distance 30cm, using bore is arranged using the strainer filtering coating of 200 mesh in fat The surface that coating is sprayed to protective layer 50 for the spray gun of 1.5mm forms the second decorative layer that thickness is 60 μm, and embodiment 3 is made Cookware 100.
The electrical parameter of the cookware 100 of above-described embodiment 1 to 3 is measured, measurement result is shown in Table 1：
Table one：The electrical parameter of the cookware 100 of embodiment 1 to 3
Embodiment 1 2 3
Coupling inductance Ls/uH 74.1 74.4 74.9
Coupling resistance Rs/ Ω 2.3 2.26 2.2
Maximum heating power/kW 1.42 1.34 1.3
After the cookware 100 of embodiment 1 to 3 is applied to cooking apparatus, work shape is in the cooking apparatus at room temperature The coupling inductance of cookware 100 under state, coupling resistance measure, and when being in initial heating to the cooking apparatus at room temperature Maximum heating power measure, measurement result is shown：The cooking apparatus of the cookware 100 of Application Example 1 to 3 all has good Good electromagnetism is compared with thermal effect.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every in the present invention Inventive concept under, using equivalent structure transformation made by description of the invention and accompanying drawing content, be applied directly or indirectly in Other related technical areas are included in the scope of patent protection of the present invention.

Claims (12)

1. a kind of cookware, the cookware includes the bottom of a pan and the side wall that is connect with the bottom of a pan, which is characterized in that the bottom of a pan and/ Or the outer surface of side wall forms matcoveredn, the protective layer is mixture layer or pure nitride layer, and the pure nitride layer is oxidation Aluminium layer, zirconium oxide layer, titanium oxide layer or magnesium oxide layer；The mixture layer contains aluminium oxide, zirconium oxide, titanium oxide and magnesia In at least two.
2. cookware as described in claim 1, which is characterized in that the thickness range of the protective layer is 10~100 μm.
3. such as claim 1-2 any one of them cookwares, which is characterized in that the outer surface and institute of the bottom of a pan and/or side wall It states and is also formed with magnetic layer between protective layer, the magnetic layer material is iron, ferroalloy, ferromanganese, ferro-silicium and iron silicon At least one of aluminium alloy.
4. cookware as claimed in claim 3, which is characterized in that the ferroalloy, ferromanganese, ferro-silicium and iron sial In alloy, the content of ferro element is not less than 80%.
5. cookware as claimed in claim 4, which is characterized in that the ferroalloy, ferromanganese, ferro-silicium and iron sial In alloy, the content of ferro element is not less than 98%.
6. cookware as claimed in claim 3, which is characterized in that the porosity of the magnetic layer is 0.1~1%.
7. cookware as claimed in claim 3, which is characterized in that the thickness range of the magnetic layer is 0.2~2mm.
8. such as claim 1-2 any one of them cookwares, which is characterized in that the cookware further includes being formed in the protective layer At least one layer of decorative layer on surface.
9. the cookware as described in claim 1-2 is any, which is characterized in that the cookware further includes linkage section, and the bottom of a pan is logical It crosses the linkage section to connect with the side wall, the outer surface of the linkage section is formed with the protective layer.
10. a kind of preparation method of cookware, which is characterized in that the preparation method includes the following steps：
Cookware crude green body is provided, which includes the bottom of a pan and the side wall that is connect with the bottom of a pan；
Protective layer is formed in the bottom of a pan and/or the outer surface of side wall by spray treatment, the protective layer is mixture layer or pure Nitride layer, the pure nitride layer are alumina layer, zirconium oxide layer, titanium oxide layer or magnesium oxide layer；The mixture layer contains oxidation At least two in aluminium, zirconium oxide, titanium oxide and magnesia.
11. a kind of cooking apparatus, including pedestal and the coil panel for being contained in the pedestal, which is characterized in that the cooking apparatus Further include cookware as claimed in any one of claims 1-9 wherein, the cookware is detachably arranged at pedestal, and the coil panel is located at Below cookware, and it is oppositely arranged with cookware.
12. cooking apparatus as claimed in claim 11, which is characterized in that the vertical distance range of the cookware and coil panel is 2~5mm.
CN201710304122.3A 2017-05-02 2017-05-02 Cookware and preparation method thereof, cooking apparatus Pending CN108784387A (en)

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CN108937606A (en) * 2017-05-26 2018-12-07 佛山市顺德区美的电热电器制造有限公司 Cookware and cooking apparatus
CN110983230A (en) * 2019-12-23 2020-04-10 广州市尤特新材料有限公司 Heat-insulating coating of electromagnetic pot and preparation method thereof
CN113647829A (en) * 2021-09-14 2021-11-16 厦门佰顺兴自动化科技有限公司 Frying pan and manufacturing method thereof
CN114645305A (en) * 2020-12-17 2022-06-21 武汉苏泊尔炊具有限公司 Cooking utensil

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CN206006885U (en) * 2016-06-29 2017-03-15 佛山市顺德区美的电热电器制造有限公司 Pot and pan
CN206062858U (en) * 2016-04-25 2017-04-05 佛山市顺德区美的电热电器制造有限公司 A kind of cooking pot tool

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JP2003204871A (en) * 2002-01-11 2003-07-22 Noritake Co Ltd Container for electromagnetic cooker
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CN201911855U (en) * 2010-04-15 2011-08-03 徐红春 Electromagnetic heating safe cooking ware
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CN108937606A (en) * 2017-05-26 2018-12-07 佛山市顺德区美的电热电器制造有限公司 Cookware and cooking apparatus
CN110983230A (en) * 2019-12-23 2020-04-10 广州市尤特新材料有限公司 Heat-insulating coating of electromagnetic pot and preparation method thereof
CN114645305A (en) * 2020-12-17 2022-06-21 武汉苏泊尔炊具有限公司 Cooking utensil
CN113647829A (en) * 2021-09-14 2021-11-16 厦门佰顺兴自动化科技有限公司 Frying pan and manufacturing method thereof

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