CN111805171A - Production method of cookware with inner surface being rolled and sprayed with cold-rolled sheet - Google Patents
Production method of cookware with inner surface being rolled and sprayed with cold-rolled sheet Download PDFInfo
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- CN111805171A CN111805171A CN202010483665.8A CN202010483665A CN111805171A CN 111805171 A CN111805171 A CN 111805171A CN 202010483665 A CN202010483665 A CN 202010483665A CN 111805171 A CN111805171 A CN 111805171A
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- Prior art keywords
- rolled
- base material
- cookware
- pot
- cold
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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
-
- 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
-
- 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
- A47J36/025—Vessels with non-stick features, e.g. coatings
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Cookers (AREA)
- Frying-Pans Or Fryers (AREA)
Abstract
The invention discloses a production method of a cold-rolled sheet cookware with a rolled and sprayed inner surface, which comprises the following steps: rolling the cold-rolled plate base material; stamping the base material into the shape of a pot; carrying out sand blasting on the inner surface of the pot; carrying out nitriding treatment; spraying a non-stick coating on the inner surface; sintering at high temperature; polishing to remove the non-stick coating on the surface of the convex part of the concave-convex pattern on the inner surface of the pot; oil wiping and low-temperature sintering: the glossiness and the antirust capacity of the surface nitrided layer are improved; can reduce slice contact non-stick coating when using, avoid non-stick coating to be destroyed, the non-stick coating and the food contact of the concave surface part of concave convex pattern play the non-stick effect, carry out the sandblast after the stamping forming in order to increase roughness for non-stick coating combines more firmly with the pan, carries out nitriding treatment to the pan and forms the rust-resistant ability and the corrosion resistance of surface nitrided layer in order to strengthen the substrate surface, and the pan has longer life.
Description
Technical Field
The invention relates to the technical field of kitchen utensils, in particular to a production method of a cold-rolled sheet cookware with a rolled and sprayed inner surface.
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 solve at least one of the technical problems in the prior art, and provides a method for producing a cookware made of a cold-rolled sheet with a rolling and spraying inner surface, which can produce cookware with a non-stick coating which is not easy to damage, and has strong antirust capacity and corrosion resistance, and the cookware has long service life.
The production method of the cookware with the inner surface subjected to rolling and spraying comprises the following steps:
rolling: rolling the surface of the cold-rolled plate base material to form a concave-convex pattern;
stamping forming: stamping the cold-rolled plate base material into the shape of a pot to obtain a base material pot;
sand blasting: sandblasting the inner surface of the base cookware to increase the surface roughness;
nitriding: nitriding the base material pot tool, and forming a surface nitriding layer on the surface of the base material pot tool so as to enhance the antirust capacity and corrosion resistance of the surface of the base material;
internal spraying: spraying a non-stick coating on the inner surface of the base material cookware;
and (3) high-temperature sintering: sintering the pot at high temperature to fully combine the non-stick coating with the cold-rolled plate base material;
internal sanding: polishing to remove the non-stick coating on the surface of the convex part of the concave-convex pattern on the inner surface of the pot;
oil wiping and low-temperature sintering: the glossiness and the antirust capacity of the surface nitrided layer are improved.
The production method of the cookware with the inner surface subjected to rolling and spraying provided by the embodiment of the invention at least has the following beneficial effects: through at the concave and convex pattern of pan internal surface roll extrusion, polish behind the spraying non-stick coating and remove the coating of salient, slice contact non-stick coating when can reduce the use, avoid non-stick coating destroyed, increase of service life, the non-stick coating and the food contact of the concave surface part of concave and convex pattern, play the non-stick effect, the internal surface sandblast is in order to increase roughness after the pan stamping forming, make non-stick coating and pan internal surface combine more firmly, carry out the nitrogenize treatment to the pan, form rust-resistant ability and the corrosion resistance of surface nitride layer in order to strengthen the substrate surface at the surface, still improve the glossiness and the rust-resistant ability of surface nitride layer through oil wiping and low temperature sintering, the pan has longer life.
According to some embodiments of the invention, between the stamping forming step and the blasting step, further comprising the steps of:
bottom welding: the bottom of the base material pot is welded with the magnetic conductive sheet so that the bottom of the base material pot is thickened and heated uniformly.
According to some embodiments of the invention, between the stamping forming step and the bottoming step, the method further comprises 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.
According to some embodiments of the invention, between the step of turning the edge and the step of washing, further comprising the steps of:
punching: the base material pot is punched for assembling the handle.
According to some embodiments of the invention, after the step of oiling and low-temperature sintering, the method further comprises the steps of:
and (3) bottom preparation: the bottom of the pot is pressed to be flat.
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 invention, the low temperature sintering is at a temperature in a range of 150 degrees celsius to 300 degrees celsius.
According to some embodiments of the invention, the oil used in the step of oiling and low-temperature sintering is edible oil.
According to some embodiments of the invention, the inner sanding step is performed with sandpaper or a sander.
According to some embodiments of the invention, the step of blasting 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 flowchart of a method for manufacturing cookware made of cold-rolled sheets according to an embodiment of the invention;
fig. 2 is a flowchart of a method for producing cookware made of cold-rolled sheets according to a second embodiment of the invention;
fig. 3 is a flowchart of a method for producing cookware made of cold-rolled sheets according to a third embodiment of the invention;
fig. 4 is a flowchart of a production method of cookware made of cold-rolled sheets according to a fourth embodiment of the invention;
fig. 5 is a flowchart of a method for producing cookware made of cold-rolled sheets according to a fifth embodiment of the present invention;
fig. 6 is a sectional view of a pot produced by the method for producing a cold-rolled sheet pot provided by the embodiment of the 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, the method for producing the cookware with the inner surface roll-coated comprises the following steps:
s100, rolling: rolling the surface of the cold-rolled plate base material to form a concave-convex pattern;
s200, punch forming: stamping the cold-rolled plate base material into the shape of a pot to obtain a base material pot;
s700, sand blasting: sandblasting the inner surface of the base cookware to increase the surface roughness;
s800, nitriding: nitriding the base material pot tool, and forming a surface nitriding layer on the surface of the base material pot tool so as to enhance the antirust capacity and corrosion resistance of the surface of the base material;
s900, internal spraying: spraying a non-stick coating on the inner surface of the base material cookware;
s1000, high-temperature sintering: sintering the pot at high temperature to fully combine the non-stick coating with the cold-rolled plate base material;
s1100, internal sanding: polishing to remove the non-stick coating on the surface of the convex part of the concave-convex pattern on the inner surface of the pot;
s1200, oil wiping and low-temperature sintering: the glossiness and the antirust capacity of the surface nitrided layer are improved.
The rolling is a pressure finishing process, which utilizes the cold plasticity characteristic of metal at normal temperature and utilizes a rolling tool to apply certain pressure on the surface of a workpiece, so that the metal on the surface layer of the workpiece generates plastic flow and is filled into the original residual low-valley, and the roughness value of the surface of the workpiece is reduced. Because the rolled surface metal is plastically deformed, the surface structure is cold hardened and the crystal grains are thinned to form a compact fibrous shape and a residual stress layer is formed, so that the hardness and the strength are improved, and the wear resistance, the corrosion resistance and the matching property of the surface of the workpiece are improved. Rolling is a non-cutting plastic working method.
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 spray beam to spray materials (copper ore sand, quartz sand, carborundum, iron sand and Hainan sand) to the surface of a workpiece 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 an 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 film is prolonged, and the leveling and decoration of a coating are facilitated.
The nitriding treatment refers to a chemical heat treatment process for making nitrogen atoms penetrate into the surface layer of a workpiece in a certain medium at a certain temperature. The product after nitriding treatment has the characteristics of excellent wear resistance, fatigue resistance, corrosion resistance and high temperature resistance.
The production method of the cold-rolled sheet metal pot with the inner surface subjected to rolling and spraying provided by the embodiment of the invention at least has the following beneficial effects: through at the concave and convex pattern of pan internal surface roll extrusion, polish behind the spraying non-stick coating and remove the coating of salient, slice contact non-stick coating when can reduce the use, avoid non-stick coating destroyed, increase of service life, the non-stick coating and the food contact of the concave surface part of concave and convex pattern, play the non-stick effect, the internal surface sandblast is in order to increase roughness after the pan stamping forming, make non-stick coating and pan internal surface combine more firmly, carry out the nitrogenize treatment to the pan, form rust-resistant ability and the corrosion resistance of surface nitride layer in order to strengthen the substrate surface at the surface, still improve the glossiness and the rust-resistant ability of surface nitride layer through oil wiping and low temperature sintering, the pan has longer life.
Referring to fig. 2, in some embodiments of the present invention, between the S200 press forming step and the S700 sand blasting step, the following steps are further included:
s600, bottom welding: the bottom of the base material pot is welded with the magnetic conductive sheet so that the bottom of the base material pot is thickened and heated uniformly.
In this embodiment, at the bottom welding magnetic conduction piece of substrate pan, can make the bottom thickening of pan, bottom non-deformable during the use is heated evenly moreover, few oil smoke.
The cross-sectional structure of the product after the bottom welding step is shown in fig. 6, a concave-convex pattern is formed on the surface of the base material, a nitriding layer is formed on the surface of the base material through nitriding treatment, the non-stick coating on the concave surface part of the concave-convex pattern is reserved, the non-stick coating on the surface of the convex part is ground, and the magnetic conducting sheet layer is welded on the bottom of the base material pot.
Referring to fig. 3, in some embodiments of the present invention, between the S200 stamping forming step and the S600 solder backing step, the following steps are further included:
s300, 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;
s500, cleaning: and cleaning the base material cookware to remove oil stains on the surface.
In this embodiment, after the step of S200 stamping forming, the cold-rolled plate 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, which is not regular and regular as expected, so that after the step of 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, so that the sand blasting effect of the subsequent sand blasting step is ensured.
Referring to fig. 4, in some embodiments of the present invention, between the step of performing the S300 edge turning and the step of performing the D500 washing, the following steps are further included:
s400, punching: and punching the base material pot.
In this embodiment, punch a hole to the substrate pan, the follow-up assembly handle of being convenient for.
Referring to fig. 5, in some embodiments of the present invention, after the step of S1200 oil wiping and low-temperature sintering, the method further includes the following steps:
s1300, bottom finishing: the bottom of the pot is pressed to be flat.
In this embodiment, flatten the bottom of pan for the bottom is more steady when the product is placed in the plane.
Preferably, the temperature range of the high-temperature sintering is between 300 and 500 ℃.
Preferably, the temperature range of the low-temperature sintering is between 150 ℃ and 300 ℃.
Preferably, the oil used in the S1200 oil wiping and low-temperature sintering step is edible oil.
Preferably, the sanding step in S1100 is performed by using sandpaper or a sander.
Preferably, the step of S700 blasting is carried out by placing the base material pot into the 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. The production method of the cookware with the inner surface being rolled and sprayed is characterized by comprising the following steps:
rolling: rolling the surface of the cold-rolled plate base material to form a concave-convex pattern;
stamping forming: stamping the cold-rolled plate base material into the shape of a pot to obtain a base material pot;
sand blasting: sandblasting the inner surface of the base cookware to increase the surface roughness;
nitriding: nitriding the base material pot tool, and forming a surface nitriding layer on the surface of the base material pot tool so as to enhance the antirust capacity and corrosion resistance of the surface of the base material;
internal spraying: spraying a non-stick coating on the inner surface of the base material cookware;
and (3) high-temperature sintering: sintering the pot at high temperature to fully combine the non-stick coating with the cold-rolled plate base material;
internal sanding: polishing to remove the non-stick coating on the surface of the convex part of the concave-convex pattern on the inner surface of the pot;
oil wiping and low-temperature sintering: the glossiness and the antirust capacity of the surface nitrided layer are improved.
2. The method for producing cookware of cold-rolled sheets with rolled and sprayed inner surfaces as claimed in claim 1, wherein between the step of stamping and the step of sand blasting, the method further comprises the following steps:
bottom welding: the bottom of the base material pot is welded with the magnetic conductive sheet so that the bottom of the base material pot is thickened and heated uniformly.
3. The method for producing cookware of cold-rolled sheets with rolled and sprayed inner surface according to claim 2, wherein between the step of stamping and the step of welding bottom, the method further comprises the following steps:
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.
4. The method for producing cookware of cold-rolled sheet with rolled and sprayed inner surface according to claim 3, wherein between the edging step and the cleaning step, the method further comprises the following steps:
punching: the base material pot is punched for assembling the handle.
5. The method for producing cookware with rolled and sprayed inner surface as claimed in claim 1, wherein after the steps of oiling and low-temperature sintering, the method further comprises the following steps:
and (3) bottom preparation: the bottom of the pot is pressed to be flat.
6. The method for producing cookware of cold-rolled plate with rolled and sprayed inner surface as claimed in claim 1, wherein the temperature range of the high-temperature sintering is 300-500 ℃.
7. The method for producing cookware of cold-rolled sheet with rolled and sprayed inner surface as claimed in claim 1, wherein the temperature range of the low-temperature sintering is between 150 ℃ and 300 ℃.
8. The method for producing cookware of cold-rolled plate with rolled and sprayed inner surface as claimed in claim 1, wherein the oil used in the step of oiling and low-temperature sintering is edible oil.
9. The method for producing cookware with rolled and sprayed inner surface as claimed in claim 1, wherein the inner sanding step is performed by using sand paper or a sander.
10. The method of claim 1 wherein the step of blasting is performed by placing the substrate cookware inside a blasting machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010483665.8A CN111805171A (en) | 2020-06-01 | 2020-06-01 | Production method of cookware with inner surface being rolled and sprayed with cold-rolled sheet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010483665.8A CN111805171A (en) | 2020-06-01 | 2020-06-01 | Production method of cookware with inner surface being rolled and sprayed with cold-rolled sheet |
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| CN111805171A true CN111805171A (en) | 2020-10-23 |
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| CN202010483665.8A Pending CN111805171A (en) | 2020-06-01 | 2020-06-01 | Production method of cookware with inner surface being rolled and sprayed with cold-rolled sheet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112238351A (en) * | 2020-10-14 | 2021-01-19 | 江门市恒正自动化设备科技有限公司 | Pot polishing silk screen printing automatic production line |
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| JP2015229757A (en) * | 2014-06-06 | 2015-12-21 | 大阪ガスケミカル株式会社 | Coating composition |
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| CN201452826U (en) * | 2009-07-13 | 2010-05-12 | 胡拥宪 | Magnetic-conductive compound pan |
| CN202567832U (en) * | 2012-04-06 | 2012-12-05 | 赖荧辉 | Surface structure for high-hardness irony non-stick cooker |
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| CN103783999A (en) * | 2014-01-16 | 2014-05-14 | 武义瑞普厨具有限公司 | Novel composite cooker and manufacturing method thereof |
| JP2015229757A (en) * | 2014-06-06 | 2015-12-21 | 大阪ガスケミカル株式会社 | Coating composition |
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