CN111822945A - Production method of high-hardness wear-resistant pot - Google Patents
Production method of high-hardness wear-resistant pot Download PDFInfo
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- CN111822945A CN111822945A CN202010483676.6A CN202010483676A CN111822945A CN 111822945 A CN111822945 A CN 111822945A CN 202010483676 A CN202010483676 A CN 202010483676A CN 111822945 A CN111822945 A CN 111822945A
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- base material
- pot
- cookware
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- 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
-
- 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
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
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- Organic Chemistry (AREA)
- Food Science & Technology (AREA)
- Electrochemistry (AREA)
- Cookers (AREA)
Abstract
The invention discloses a production method of a high-hardness wear-resistant pot, which comprises the following steps: stamping the aluminum alloy base material into the shape of a pot; the steel nail or the steel ball is sprayed to the inner surface of the base material cookware through pressure to form a deeper concave-convex surface, so that the roughness of the surface of the base material is effectively increased; a protective film is pasted at the bottom of the base material pot, so that the position where the bottom of the base material pot is contacted with the aluminum sheet layer and the magnetic conduction sheet layer is not oxidized; carrying out hard oxidation treatment on the base material cookware to form an oxide layer on the surface of the base material, so as to enhance the hardness and corrosion resistance of the surface of the base material cookware; sanding the bottom of the base material pot; the aluminum sheet layer and the magnetic sheet layer are brazed at the bottom of the base material cookware, so that the bottom of the cookware is thickened, the bottom is not easy to deform during use, and the cookware is uniformly heated and has less oil smoke; spraying the non-stick coating and sintering at high temperature to ensure that the coating is fully combined with the surface of the aluminum alloy substrate, thereby having better non-stick function.
Description
Technical Field
The invention relates to the technical field of kitchen utensils, in particular to a production method of a high-hardness wear-resistant pot.
Background
The traditional cooker is mostly made of aluminum alloy, and the bottom of the traditional cooker is ground or turned, so that negative effects are brought, for example, when the aluminum alloy cooker bottom is easy to oxidize and heat, due to the fact that the bottom of the aluminum alloy cooker bottom is small in thickness, the aluminum alloy cooker bottom cannot be fully heat-absorbed, a large amount of heat energy is lost, and after the aluminum alloy cooker bottom is used on an electromagnetic cooker, the aluminum alloy cooker bottom cannot be partially magnetically conducted or is low in magnetic conduction efficiency. Along with the development of society and the improvement of living standard of people, the requirements of people on cookers are higher and higher, and the traditional design and production process can not meet the requirements of people more and more.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provides a production method of a high-hardness wear-resistant pot, which can produce a pot with high hardness, wear resistance and non-stick function.
According to the embodiment of the invention, the production method of the high-hardness wear-resistant pot comprises the following steps:
stamping forming: stamping the aluminum alloy base material into the shape of a pot to obtain a base material pot;
steel grit spraying: spraying steel nails or steel balls to the inner surface of the base material pot by pressure to form a concave-convex surface so as to increase the surface roughness of the base material;
pasting a protective film: sticking a protective film at the bottom of the base material pot;
hard oxidation: carrying out hard oxidation treatment on the base material cookware to enhance the hardness of the concave-convex surface and enhance the corrosion resistance of the surface of the base material;
sanding the bottom for the first time: sanding the bottom of the base material pot by using sand paper or a sanding machine;
brazing: brazing an aluminum sheet layer and a magnetic sheet layer on the bottom of the base material pot so as to thicken the bottom of the base material pot and heat the bottom uniformly;
internal spraying: spraying a non-stick coating on the inner surface of the base material cookware;
and (3) high-temperature sintering: and sintering the pot at high temperature to fully combine the non-stick coating with the aluminum alloy substrate.
According to the production method of the high-hardness wear-resistant cookware provided by the embodiment of the invention, at least the following beneficial effects are achieved: the steel nail or the steel ball is sprayed to the inner surface of the base material pot by the steel grit spraying process, a deeper concave-convex surface can be formed, the roughness of the surface of the base material is effectively increased, the hard oxidation treatment is carried out, so that an oxide layer is formed on the surface of the base material, the hardness and the corrosion resistance of the surface of the base material cookware are enhanced, the aluminum sheet layer and the magnetic sheet layer are brazed at the bottom of the base material cookware, so that the bottom of the cookware is thickened, the bottom is not easy to deform during use, the bottom of the base material cooker is adhered with a protective film before the hard oxidation step, so that the contact position of the bottom of the base material cooker with the aluminum sheet layer and the magnetic conductive sheet layer is not oxidized, the aluminum sheet layer and the magnetic conductive sheet layer are directly contacted with the aluminum alloy, the welding is firmer, the inner surface of the pot is sprayed with the coating and sintered at high temperature, so that the coating is fully combined with the surface of the aluminum alloy substrate, and the pot has a good non-stick function.
According to some embodiments of the invention, the steps of stamping and blasting steel grit further comprise the following steps between the steps of:
turning edges: cutting off the irregular part of the edge of the base material pot mouth to ensure that the base material pot is regular and smooth;
cleaning: and cleaning the base material cookware to remove oil stains on the surface.
In this embodiment, after the aluminum alloy base material is stamped into the shape of the inner container of the soup pot, the milk pot, the frying pan, the baking tray or the electric pressure cooker in the stamping forming step, the aluminum alloy base material is generally not regular and regular as expected, so that after the stamping forming, the edge of the base material cooker mouth is required to be turned around, so that the edge of the base material cooker mouth becomes regular and smooth; then the base material pot is cleaned to remove surface oil stains, thereby ensuring the subsequent hard oxidation, brazing and spraying effects.
According to some embodiments of the invention, the steel grit spraying step and the protective film pasting step further comprise the following steps:
sanding outside: the outer surface of the base material pot is subjected to outer sanding so as to enable the grains on the outer surface to be uniform;
punching: the base material pot is punched for assembling the handle.
In this embodiment, because spout the roughness of the internal surface of steel grit step main objective in order to increase the substrate pan, also do not handle the surface of substrate pan before, consequently, spout the steel grit step back and carry out outer sand light and the processing of punching a hole to the substrate pan for the surface line of substrate pan is even, thereby has better outward appearance line, and the follow-up assembly handle of being convenient for.
According to some embodiments of the invention, the high temperature sintering step is followed by the steps of:
sanding the bottom for the second time: sanding the bottom of the pot to enable the surface lines of the magnetic conductive sheet layer to be uniform;
and (3) bottom preparation: the bottom of the pot is pressed to be flat.
In this embodiment, because aluminium lamella and magnetic conduction lamella brazed in the bottom of substrate pan in the step of brazing, need carry out bottom sand light for the second time, make magnetic conduction lamella layer surface line even, flatten the bottom of pan at last for the bottom is steady when the product is placed in the plane.
According to some embodiments of the invention, the protective film affixed to the base pan bottom is a PV film for preventing the base pan bottom from being corroded during the hard oxidation step.
According to some embodiments of the invention, the high temperature sintering is at a temperature in a range between 300 degrees celsius and 500 degrees celsius.
According to some embodiments of the present invention, after the brazing step, the step of brazing further includes placing the base material pot, the aluminum sheet layer, and the magnetic sheet layer, which are welded together, into a composite mold, and performing composite by using a common hot-press composite method.
According to some embodiments of the invention, the temperature range of the thermo-compression bonding is between 300 degrees celsius and 500 degrees celsius.
According to some embodiments of the invention, the temperature range of the thermo-compression lamination is 400 degrees celsius.
According to some embodiments of the invention, the blasting step is performed by placing the substrate pot inside a blasting machine.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described below with reference to the accompanying drawings and examples;
fig. 1 is a flow chart of a method for producing an aluminum alloy cookware according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for producing an aluminum alloy cookware according to a second embodiment of the present invention;
fig. 3 is a flow chart of a method for producing an aluminum alloy cookware according to a third embodiment of the present invention;
fig. 4 is a flowchart of a method for producing aluminum alloy cookware according to a fourth embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, an embodiment of the present invention provides a method for producing a high-hardness wear-resistant cookware, including the following steps:
s100, punch forming: stamping the aluminum alloy base material into the shape of a pot to obtain a base material pot;
s400, steel grit spraying: spraying steel nails or steel balls to the inner surface of the base material pot by pressure to form a concave-convex surface so as to increase the surface roughness of the base material;
s700, pasting a protective film: sticking a protective film at the bottom of the base material pot;
s800, hard oxidation: carrying out hard oxidation treatment on the base material cookware to enhance the hardness of the concave-convex surface and enhance the corrosion resistance of the surface of the base material;
s900, sanding the bottom for the first time: sanding the bottom of the base material pot by using sand paper or a sanding machine;
s1000, brazing: brazing an aluminum sheet layer and a magnetic sheet layer on the bottom of the base material pot so as to thicken the bottom of the base material pot and heat the bottom uniformly;
s1100, internal spraying: spraying a non-stick coating on the inner surface of the base material cookware;
s1200, high-temperature sintering: and sintering the pot at high temperature to fully combine the non-stick coating with the aluminum alloy substrate.
The press forming is a processing and forming method for obtaining a workpiece (stamping part) with a required shape and size by applying an external force to a plate, a strip, a pipe, a section and the like by a press and a die to cause plastic deformation or separation.
Wherein, the sand blasting is a process of cleaning and coarsening the surface of a matrix by using the impact action of high-speed sand flow. Compressed air is used as power to form a high-speed jet beam to jet the jet material (copper ore sand, quartz sand, carborundum, iron sand, Hainan sand and steel sand) to the surface of a workpiece needing to be treated at a high speed, so that the appearance or the shape of the outer surface of the workpiece is changed, and the surface of the workpiece obtains certain cleanliness and different roughness due to the impact and cutting action of the abrasive on the surface of the workpiece, so that the mechanical property of the surface of the workpiece is improved, the fatigue resistance of the workpiece is improved, the adhesive force between the workpiece and a coating is increased, the durability of a coating is prolonged, and the leveling and decoration of the coating are facilitated. In this embodiment, the steel nails or steel balls are used to perform steel grit blasting on the inner surface of the base material pot.
Among them, hard oxidation is entirely called hard anodizing. The hard anodic oxide film generally requires a thickness of 25-150um, most of the hard anodic oxide films have a thickness of 50-80um, and the film thickness is less than 25um, and is used for parts of use occasions such as tooth bonds and spirals, the thickness of the wear-resistant or insulating anodic oxide film is about 50um, and under some special process conditions, the hard anodic oxide film with a thickness of more than 125um is required to be produced, but the thicker the anodic oxide film is, the lower the microhardness of the outer layer can be, and the roughness of the film surface is increased. The bath solution for hard anodizing is usually sulfuric acid solution and sulfuric acid with organic acid, such as oxalic acid, sulfamic acid, etc. In addition, the hard anodizing treatment can be achieved by lowering the anodizing temperature or lowering the sulfuric acid concentration. Special measures to increase anodization may also be considered for wrought aluminum alloys with copper contents greater than 5% or silicon contents greater than 8%, or high silicon die cast aluminum alloys.
The brazing method is a welding method in which brazing filler metal lower than the melting point of a weldment and the weldment are heated to the melting temperature of the brazing filler metal at the same time, and then the liquid brazing filler metal is used for filling gaps of solid workpieces to connect the metals. During brazing, an oxide film and oil stains on a contact surface of a base material are removed firstly, so that a capillary tube can play a role after the brazing filler metal is melted, and the wettability and the capillary fluidity of the brazing filler metal are improved.
According to the production method of the high-hardness wear-resistant pot tool provided by the embodiment of the invention, the steel nails or the steel balls are sprayed on the inner surface of the base material pot tool through a steel grit spraying process, so that deeper concave-convex surfaces can be formed, the roughness of the surface of the base material is effectively increased, hard oxidation treatment is carried out, an oxide layer is formed on the surface of the base material, the hardness and the corrosion resistance of the surface of the base material pot tool are enhanced, an aluminum sheet layer and a magnetic conduction sheet layer are brazed at the bottom of the base material pot tool, so that the bottom of the pot tool can be thickened, the bottom is not easy to deform during use, the heating is uniform, little oil smoke is generated, a protective film is pasted at the bottom before the hard oxidation step, the contact position of the bottom of the base material pot tool with the aluminum sheet layer and the magnetic conduction sheet layer is not oxidized, the aluminum sheet layer and the magnetic conduction sheet layer are, has better non-stick function.
Referring to fig. 2, in some embodiments of the present invention, the following steps are further included between the S100 press forming step and the S400 steel grit blasting step:
s200, turning edges: cutting off the irregular part of the edge of the base material pot mouth to ensure that the base material pot is regular and smooth;
s300, cleaning: and cleaning the base material cookware to remove oil stains on the surface.
In this embodiment, after the aluminum alloy base material is stamped into the shape of the inner container of the soup pot, the milk pot, the frying pan, the baking tray or the electric pressure cooker in the stamping forming step, the aluminum alloy base material is generally not regular and regular as expected, so that after the stamping forming, the edge of the base material cooker mouth is required to be turned around, so that the edge of the base material cooker mouth becomes regular and smooth; then the base material pot is cleaned to remove surface oil stains, thereby ensuring the subsequent hard oxidation, brazing and spraying effects.
Referring to fig. 3, in some embodiments of the present invention, the following steps are further included between the step of spraying steel grit in S400 and the step of pasting a protective film in S700:
s500, external sanding: the outer surface of the base material pot is subjected to outer sanding so as to enable the grains on the outer surface to be uniform;
s600, punching: the base material pot is punched for assembling the handle.
In this embodiment, because spout the roughness of the internal surface of steel grit step main objective in order to increase the substrate pan, also do not handle the surface of substrate pan before, consequently, spout the steel grit step back and carry out outer sand light and the processing of punching a hole to the substrate pan for the surface line of substrate pan is even, thereby has better outward appearance line, and the follow-up assembly handle of being convenient for.
Referring to fig. 4, in some embodiments of the present invention, after the S1200 high-temperature sintering step, the following steps are further included:
s1300, sanding the bottom of the second time: sanding the bottom of the pot to enable the surface lines of the magnetic conductive sheet layer to be uniform;
s1400, bottom preparation: the bottom of the pot is pressed to be flat.
In this embodiment, because aluminium lamella and magnetic conduction lamella brazed in the bottom of substrate pan in the step of brazing, need carry out bottom sand light for the second time, make magnetic conduction lamella layer surface line even, flatten the bottom of pan at last for the bottom is steady when the product is placed in the plane.
According to some embodiments of the invention, the protective film affixed to the base pan bottom is a PV film for preventing the base pan bottom from being corroded during the hard oxidation step.
According to some embodiments of the invention, the high temperature sintering is at a temperature in a range between 300 degrees celsius and 500 degrees celsius.
According to some embodiments of the present invention, after the brazing step, the step of brazing further includes placing the base material pot, the aluminum sheet layer, and the magnetic sheet layer, which are welded together, into a composite mold, and performing composite by using a common hot-press composite method.
According to some embodiments of the invention, the temperature range of the thermo-compression bonding is between 300 degrees celsius and 500 degrees celsius.
According to some embodiments of the invention, the temperature range of the thermo-compression lamination is 400 degrees celsius.
According to some embodiments of the invention, the blasting step is performed by placing the substrate pot inside a blasting machine.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A production method of a high-hardness wear-resistant pot is characterized by comprising the following steps:
stamping forming: stamping the aluminum alloy base material into the shape of a pot to obtain a base material pot;
steel grit spraying: spraying steel nails or steel balls to the inner surface of the base material pot by pressure to form a concave-convex surface so as to increase the surface roughness of the base material;
pasting a protective film: sticking a protective film at the bottom of the base material pot;
hard oxidation: carrying out hard oxidation treatment on the base material cookware to enhance the hardness of the concave-convex surface and enhance the corrosion resistance of the surface of the base material;
sanding the bottom for the first time: sanding the bottom of the base material pot by using sand paper or a sanding machine;
brazing: brazing an aluminum sheet layer and a magnetic sheet layer on the bottom of the base material pot so as to thicken the bottom of the base material pot and heat the bottom uniformly;
internal spraying: spraying a non-stick coating on the inner surface of the base material cookware;
and (3) high-temperature sintering: and sintering the pot at high temperature to fully combine the non-stick coating with the aluminum alloy substrate.
2. The production method of the high-hardness wear-resistant cookware according to claim 1, wherein the following steps are further included between the stamping forming step and the steel grit spraying step:
turning edges: cutting off the irregular part of the edge of the base material pot mouth to ensure that the base material pot is regular and smooth;
cleaning: and cleaning the base material cookware to remove oil stains on the surface.
3. The production method of the high-hardness wear-resistant cookware according to claim 1, wherein the step of spraying steel grit and the step of adhering the protective film further comprise the following steps:
sanding outside: the outer surface of the base material pot is subjected to outer sanding so as to enable the grains on the outer surface to be uniform;
punching: the base material pot is punched for assembling the handle.
4. The method for producing high-hardness wear-resistant cookware according to claim 1, wherein the step of high-temperature sintering is followed by the steps of:
sanding the bottom for the second time: sanding the bottom of the pot to enable the surface lines of the magnetic conductive sheet layer to be uniform;
and (3) bottom preparation: the bottom of the pot is pressed to be flat.
5. The method as claimed in claim 1, wherein the protective film attached to the bottom of the base pan is a PV film for preventing the bottom of the base pan from being corroded in the hard oxidation step.
6. The method for producing high-hardness and wear-resistant cookware according to claim 1, wherein the temperature range of the high-temperature sintering is between 300 ℃ and 500 ℃.
7. The method for producing cookware with high hardness and wear resistance as claimed in claim 1, wherein after the brazing step, the method further comprises the steps of placing the cookware with the base material, the aluminum sheet layer and the magnetic sheet layer which are welded together into a composite mold, and compounding by using a common hot-pressing compounding method.
8. The method for producing cookware with high hardness and wear resistance as claimed in claim 7, wherein the temperature range of the hot press compounding is 300-500 ℃.
9. The method for producing cookware with high hardness and wear resistance as claimed in claim 7, wherein the temperature range of the hot press compounding is 400 ℃.
10. The method for producing high-hardness wear-resistant cookware according to claim 1, wherein the step of blasting steel grit puts the base cookware inside a blasting machine.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010483676.6A CN111822945A (en) | 2020-06-01 | 2020-06-01 | Production method of high-hardness wear-resistant pot |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010483676.6A CN111822945A (en) | 2020-06-01 | 2020-06-01 | Production method of high-hardness wear-resistant pot |
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| CN111822945A true CN111822945A (en) | 2020-10-27 |
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| CN202010483676.6A Pending CN111822945A (en) | 2020-06-01 | 2020-06-01 | Production method of high-hardness wear-resistant pot |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115153285A (en) * | 2021-05-20 | 2022-10-11 | 浙江福腾宝家居用品有限公司 | Composite bottom pot and preparation method thereof |
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| US20030148033A1 (en) * | 2001-11-30 | 2003-08-07 | Tung-Hung Tsai | Anti-stick cookware with cookware body formed by spinning |
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| CN102871529A (en) * | 2012-08-27 | 2013-01-16 | 缙云县太极科技有限公司 | Aluminum alloy non-stick pan with hard surface and processing technology thereof |
| CN204950506U (en) * | 2014-11-20 | 2016-01-13 | 浙江三禾厨具有限公司 | Non -stick pan |
| CN107212729A (en) * | 2017-05-17 | 2017-09-29 | 浙江百特厨具有限公司 | A kind of preparation method of new non-stick pan |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1091938A (en) * | 1993-03-04 | 1994-09-14 | 赖火成 | Method for surface treatment of aluminium pot |
| US20030148033A1 (en) * | 2001-11-30 | 2003-08-07 | Tung-Hung Tsai | Anti-stick cookware with cookware body formed by spinning |
| CN201160758Y (en) * | 2008-02-25 | 2008-12-10 | 浙江苏泊尔股份有限公司 | Cooking implement for magnetic induction heating |
| CN201452826U (en) * | 2009-07-13 | 2010-05-12 | 胡拥宪 | Magnetic-conductive compound pan |
| CN102871529A (en) * | 2012-08-27 | 2013-01-16 | 缙云县太极科技有限公司 | Aluminum alloy non-stick pan with hard surface and processing technology thereof |
| CN204950506U (en) * | 2014-11-20 | 2016-01-13 | 浙江三禾厨具有限公司 | Non -stick pan |
| CN107212729A (en) * | 2017-05-17 | 2017-09-29 | 浙江百特厨具有限公司 | A kind of preparation method of new non-stick pan |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115153285A (en) * | 2021-05-20 | 2022-10-11 | 浙江福腾宝家居用品有限公司 | Composite bottom pot and preparation method thereof |
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Application publication date: 20201027 |