Manufacturing process of cooking container easy to clean

Abstract

The invention discloses a manufacturing process of an easy-to-clean cooking container, which comprises the following steps: a metal plate is selected, the surface of one side of the plate is etched or embossed to form a grain surface recessed towards the inside of the plate, and the grains of the grain surface are centimeter-level grains or millimeter-level grains; stretching the etched or embossed plate to form the cooking utensil, and enabling the grain surface to be positioned on the inner surface of the cooking utensil; polishing and cleaning the cooking utensil subjected to stretching forming; performing micropore treatment on the surface of the grain pavement; and hardening the inner surface of the cooking utensil. According to the invention, the non-nanoscale lines are adopted, so that the sizes of the lines are relatively large, food materials are not easy to enter the lines, and even if the food materials are remained, the food materials are easier to clean due to the large sizes of the lines. Therefore, according to the cooking container, the cleaning difficulty can be remarkably reduced, and the cleaning convenience of a user is improved.

Description

Technical Field

[0001] The invention relates to the technical field related to cooking device manufacturing, and in particular to a manufacturing process of an easy-to-clean cooking container. Background Art

[0002] In the field of cooking utensils, non-stick and easy-to-clean properties have always been the focus of consumers. In order to achieve these characteristics, a variety of technical means have been used traditionally. One common method is to form micron or nanometer textures on the inner surface of the cooking utensils, such as micron or nanometer grooves. However, although this method improves the non-stick effect to a certain extent, it also brings significant problems.

[0003] First, micron- or nano-scale lines are very small in size, so food can easily get into these tiny grooves during use. Once food is embedded in the lines, it becomes extremely difficult to clean, especially when the food becomes sticky or burnt under high temperature. This not only increases the cleaning burden of users, but may also affect the hygiene and long-term use of cooking utensils.

[0004] Secondly, in order to achieve non-stick properties and aesthetics, traditional cooking utensils often require complex polishing and coating processes during their manufacturing process. These processes not only increase production costs, but also because the base material of the cooking utensils itself does not have non-stick properties, direct polishing is low-cost, but the non-stick properties of the inner pot are often very poor. This makes it easy for food to stick to and burn during use, which seriously affects the cooking effect and user experience. Summary of the invention

[0005] In order to overcome at least one of the defects of the prior art, the present invention provides a process for making an easy-to-clean cooking container, which can solve the problems of food sticking and burning, thereby solving the problem of the inner pot being difficult to clean.

[0006] The technical solution adopted by the present invention to solve the problem is:

[0007] A manufacturing process for an easy-to-clean cooking container comprises the following steps: selecting a metal plate, etching or embossing a surface of one side of the plate to form a textured surface recessed toward the inside of the plate, wherein the textured surface is a centimeter-level texture or a millimeter-level texture; stretching the etched or embossed plate to form a cooking utensil, so that the textured surface is located on the inner surface of the cooking utensil; polishing and cleaning the cooking utensil after stretching; performing micropore treatment on the surface of the textured surface; and hardening the inner surface of the cooking utensil.

[0008] By adopting the above scheme, by adopting non-nanoscale textures, that is, textures larger than micrometers, it is possible to design centimeter-level or millimeter-level textures. This design makes the size of the texture relatively large, and it is not easy for food to enter the interior of the texture. Even if some food remains, it is easier to be washed away due to the larger size of the texture. Therefore, the cooking container of the present invention can significantly reduce the difficulty of cleaning and improve the cleaning convenience of the user. Secondly, in view of the high manufacturing cost and poor non-stickiness of the inner pot of traditional cooking utensils, the present invention forms a textured surface on a metal sheet through etching or embossing technology, and uses these textures as a substrate for microporous treatment and hardening treatment. This process not only simplifies the manufacturing process and reduces production costs, but also further enhances the inner surface performance of the cooking utensil through microporous treatment and hardening treatment. Microporous treatment can increase the roughness of the surface, increase the friction coefficient between the food and the container, thereby reducing the adhesion of the food; and hardening treatment can enhance the wear resistance and corrosion resistance of the cooking utensil and extend its service life.

[0009] Furthermore, the plate is a single-layer iron plate, and the single-layer iron plate is one of a cold-rolled iron plate and a galvanized iron plate.

[0010] By adopting the above scheme, the cold-rolled iron sheet has good strength and corrosion resistance, and its surface is smooth without obvious scratches, which is easy to cut, bend and other processing operations, which helps to achieve precise size and shape control during the manufacturing process, and the cost of cold-rolled iron sheet is relatively low. Galvanized iron sheet is coated with a layer of zinc metal on the surface of the steel sheet, which significantly improves the corrosion resistance of the steel sheet, can well adapt to high-temperature cooking environments, and is not easy to deform or damage.

[0011] Furthermore, the plate is a multi-layer composite plate, which includes an outer stainless steel layer, an intermediate metal layer and an inner stainless steel layer, and etching or embossing is performed on the inner stainless steel layer.

[0012] By adopting the above solution, stainless steel has excellent corrosion resistance and can resist the erosion of various chemical substances. In the multi-layer composite sheet, the outer stainless steel layer and the inner stainless steel layer together form a corrosion-resistant barrier, which effectively prevents the cooking utensils from being damaged by corrosion during use. The middle metal layer can be made of metal materials with good corrosion resistance, such as aluminum alloy, titanium alloy, etc. This layer not only enhances the overall strength of the sheet, but also further improves its corrosion resistance and prolongs the service life of the cooking utensils.

[0013] Furthermore, the shape of the texture in the textured road surface is any one of a triangle, fan, pentagon, hexagon, octagon, circle, ellipse, teardrop, rectangle or rhombus, or a combination thereof, and the array of the texture is a circular array, a radial array or a transverse array.

[0014] By adopting the above solution, the shape and array of the textured road surface can increase the roughness of the inner surface of the cooking container, forming tiny air pockets or liquid channels. These structures help reduce the direct contact area between the food and the inner surface of the container, thereby reducing adhesion and enhancing non-stick properties. At the same time, providing a variety of shapes of textured road surfaces makes the cooking container more aesthetically pleasing and personalized while maintaining practicality. Consumers can choose the appropriate texture shape according to their preferences and cooking needs.

[0015] Furthermore, the textured road surface is a centimeter-level texture, and each texture shape in the textured road surface is provided with an outwardly protruding convex point, and the convex point is aligned with the inner surface of the plate.

[0016] By adopting the above solution, the presence of the bumps increases the roughness of the inner surface of the cooking container. This microscopic unevenness helps to reduce the direct contact area between the food and the container surface. When the food is placed in the container, the bumps can form tiny support points, reducing the adhesion between the food and the container, thereby enhancing the non-stick performance; the food will expand or soften after being heated. The design of the bumps helps to form a tiny gap between the food and the container, making it easier for the food to detach from the surface of the container after being heated, avoiding the occurrence of food sticking or burning. The design of the bumps can also increase the hardness of the inner surface of the cooking container and improve its wear resistance. During long-term use, the bumps can reduce the friction and scratches of the food on the surface of the container and extend the service life of the container. The centimeter-level texture is used so that the gaps between the bumps can be used as channels for cleaning, facilitating the entry of water and detergents to remove stains and residues.

[0017] Furthermore, when the shape of the textured road surface is a hexagon, the convex point is located at the center of the hexagon, wherein the distance L between opposite sides of the hexagon is 1mm to 5mm, the size range of the texture depth H is 0.2mm to 0.5mm, and the size range of the convex point diameter D in the texture is 0.5mm to 1mm.

[0018] By adopting the above solution, the shape and size of the hexagonal shape enable the heat to be more evenly distributed on the inner surface of the cooking container. The convex point is located in the center of the hexagon, which further promotes the uniform transfer of heat and reduces the generation of hot spots and cold spots. At the same time, the size of the hexagon and the depth of the depression are limited to avoid the problem of food getting stuck due to excessive depression or excessive depression area.

[0019] Furthermore, the textured road surface covers at least one half of the inner surface of the side wall of the cooking container.

[0020] By adopting the above solution, the pattern covering a larger area can ensure that more food in the cooking container is evenly heated, reducing the problem of uneven cooking of food due to uneven heat distribution. Not only does it shorten the cooking time, but it also improves the taste and nutritional value of the food, making the cooking process more efficient and quality controllable. Similarly, due to the expansion of the pattern area, the non-stick performance will be further improved.

[0021] Furthermore, a protective film is provided on the surface of the textured road surface, and the thickness of the protective film is 3 μm to 8 μm.

[0022] By adopting the above solution, the protective film can increase the hardness of the inner surface of the cooking container, thereby resisting the friction and scratches of the food during the cooking process. The presence of the protective film can significantly reduce such wear and tear, and keep the cooking container in good condition.

[0023] Furthermore, the protective film is a silicon dioxide film.

[0024] By adopting the above scheme, the silica film is known for its high hardness, which can effectively resist the friction and scratches of food during the cooking process, thereby significantly extending the service life of the cooking container; the silica film has good stability to a variety of chemicals, and can isolate the corrosion of the cooking container surface by chemicals such as seasonings and greases that may be encountered during the cooking process. At the same time, the silica film itself has certain hydrophobicity and non-stickiness, which can further enhance the non-stick properties of the cooking container, making it more difficult for food to adhere to the container surface during the cooking process. The silica film can withstand high temperature environments and will not be deformed or damaged by the high temperature during the cooking process. It can reduce the loss of heat through the surface of the cooking container and improve thermal efficiency. The silica film usually has a high transparency, which can clearly show the texture of the road surface under the cooking container and maintain its original beauty. The silica film is also a widely recognized food-grade material. When used as a protective film for cooking containers, it will not release harmful substances to ensure food safety.

[0025] Furthermore, the spacing distance between every two adjacent lines in the lined road surface is 0.5 mm to 1 mm.

[0026] By adopting the above solution, the textured road surface is made more uniform and compact.

[0027] In summary, the manufacturing process of an easy-to-clean cooking container provided by the present invention has the following technical effects:

[0028] 1. By adopting non-micron-level, such as millimeter-level or centimeter-level, grain design, food is not easy to embed into the grain. Even if some food remains, it is easier to remove during the cleaning process due to the larger size of the grain. This significantly reduces the difficulty of cleaning and improves the cleaning convenience for users;

[0029] 2. Compared with the traditional complex polishing and coating process, the present invention directly forms a textured surface on the metal sheet by etching or embossing, which serves as the base for subsequent microporous treatment and hardening treatment. This not only simplifies the manufacturing process, but also reduces production costs. Since the textured surface and subsequent treatment enhance the performance of the inner surface, it reduces the dependence on traditional non-stick coatings, further reducing costs;

[0030] 3. Microporous treatment increases the surface roughness and the friction coefficient between the food and the container, thereby reducing the adhesion of food. This helps prevent food from burning or adhering to the surface of the container during cooking; hardening treatment can enhance the wear resistance and corrosion resistance of cooking utensils and extend their service life. This is especially important for cooking containers that are often subjected to high temperatures and friction with food.

[0031] 4. The easy-to-clean feature of the cooking container allows users to easily remove residual ingredients after cooking and keep the container hygienic. By reducing the adhesion of ingredients, the cooking container can maintain the original flavor of the ingredients and improve the cooking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A top view of a cooking utensil according to Embodiment 1 of the present invention;

[0033] Figure 2 It is a schematic diagram of the longitudinal cross-section structure of the cooking utensil according to Embodiment 1 of the present invention;

[0034] Figure 3 is a schematic diagram of the three-dimensional structure of the cooking utensil according to Embodiment 1 of the present invention;

[0035] Figure 4 for Figure 1 Enlarged view of area A in the middle;

[0036] Figure 5 for Figure 2 Enlarged view of area B in the middle;

[0037] Figure 6 This is a schematic diagram of the longitudinal cross-sectional structure of a cooking utensil according to Embodiment 2 of the present invention;

[0038] Figure 7 is a schematic diagram of the three-dimensional structure of a cooking utensil according to Embodiment 2 of the present invention;

[0039] Figure 8 The process flow chart of the embodiment cannot be placed.

[0040] Among them, the meanings of the figure marks are as follows: 1. cooking utensils; 2. textured road surface; 3. raised points; 4. rice grains. DETAILED DESCRIPTION

[0041] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0042] In order to facilitate the understanding of the embodiments of the present invention, the following will be further explained by taking specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present invention.

[0043] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0045] Embodiment 1 of the present invention refers to Figure 1-Figure 5 , Figure 8 As shown, a manufacturing process of an easy-to-clean cooking container is disclosed, comprising the following steps:

[0046] S1. Select a metal plate, which is a single-layer iron plate, specifically a cold-rolled iron plate, and etch or emboss the surface of one side of the plate to form a textured road surface that is recessed into the plate. It should be noted that the textured road surface refers to a texture larger than the micron level. Preferably, in this embodiment 1, the textured road surface adopts a centimeter-level texture, so that the size of the texture is relatively large, and it is not easy for food to enter the interior of the texture. Even if some food remains, it is easier to be washed away due to the larger size of the texture. Preferably, the centimeter-level texture is preferably a hexagonal texture. The distance L between opposite sides of each hexagonal texture is 3mm, and the depth H of the texture is 0.3mm. An outward protruding point 3 with a diameter D of 0.75mm is set at the center of each hexagon. These textures are arranged in a circular array.

[0047] S2. The etched or embossed sheet is stretched to form a cooking utensil 1, so that the textured road surface 2 is located on the inner surface of the cooking utensil 1, and the textured road surface 2 covers half of the inner surface of the side wall. The etching or embossing process forms the textured road surface 2 on the metal sheet, which simplifies the manufacturing process and reduces the production cost. This embodiment 1 is specifically a rice steamer liner, and other embodiments include but are not limited to a frying pan or a cooking pot.

[0048] S3. The cooking utensil 1 after stretching is polished and cleaned to remove impurities and burrs on the surface;

[0049] S4. Microporous treatment is performed on the surface of the textured road surface 2. The microporous treatment can increase the surface roughness and increase the friction coefficient between the food and the container, thereby reducing the adhesion of the food;

[0050] S5. Perform hardening treatment on the inner surface of the cooking utensil 1. The hardening treatment can enhance the wear resistance and corrosion resistance of the cooking utensil 1 and extend its service life.

[0051] Embodiment 2 of the present invention refers to Figure 5-6 , Figure 8 As shown, a manufacturing process of an easy-to-clean cooking container is disclosed, comprising the following steps:

[0052] S1. Select a metal plate, which is a single-layer iron plate, specifically a galvanized iron plate, and etch or emboss one side of the galvanized iron plate to form a textured road surface 2 that is recessed into the plate. It should be noted that the textured road surface 2 refers to a texture larger than the micron level. Preferably, in this embodiment 2, the textured road surface 2 uses a centimeter-level hexagonal texture, so that the size of the texture is relatively large, and it is not easy for food to enter the interior of the texture. Even if some food remains, it is easier to be washed away due to the larger size of the texture. Optionally, the hexagonal texture can be replaced with a rectangular texture, each rectangular texture has a size of 5mm×3mm, and a convex point 3 with a diameter D of 1mm is set in the center of each rectangle. These textures are arranged in a transverse array.

[0053] S2. The etched or embossed sheet is stretched to form a cooking utensil 1, so that the textured surface 2 is located on the inner surface of the cooking utensil 1, and the texture covers the entire surface of the inner wall. The etching or embossing process forms the textured surface 2 on the metal sheet, which simplifies the manufacturing process and reduces the production cost. This embodiment 2 is specifically a rice steamer liner, and other embodiments include but are not limited to a frying pan or a cooking pot.

[0054] S3. The cooking utensil 1 after stretching is polished and cleaned to remove impurities and burrs on the surface;

[0055] S4. Microporous treatment is performed on the surface of the textured road surface 2. The microporous treatment can increase the surface roughness and increase the friction coefficient between the food and the container, thereby reducing the adhesion of the food;

[0056] S5. Perform hardening treatment on the inner surface of the cooking utensil 1. The hardening treatment can enhance the wear resistance and corrosion resistance of the cooking utensil 1 and extend its service life.

[0057] Embodiment 3 of the present invention discloses a process for manufacturing an easy-to-clean cooking container, comprising the following steps:

[0058] S1. Select a metal sheet, which is a multi-layer composite sheet. Specifically, the composite sheet is composed of an outer stainless steel layer, an intermediate aluminum alloy layer and an inner stainless steel layer, and an embossing treatment is performed on one side of the inner stainless steel layer. Stainless steel has excellent corrosion resistance and can resist the erosion of various chemical substances. In the multi-layer composite sheet, the outer stainless steel layer and the inner stainless steel layer together constitute a corrosion-resistant barrier, which effectively prevents the cooking utensil 1 from being damaged by corrosion during use. The intermediate metal layer can be made of a metal material with good corrosion resistance, such as aluminum alloy, titanium alloy, etc. This layer not only enhances the overall strength of the sheet, but also further improves its corrosion resistance and prolongs the service life of the cooking utensil 1. It should be noted that the textured surface 2 refers to a texture greater than the micron level. Preferably, in this embodiment 3, the textured surface 2 adopts a millimeter-level texture, so that the size of the texture is relatively large, and it is not easy for food to enter the interior of the texture. Even if some food remains, it is easier to be washed away due to the larger size of the texture. Preferably, the millimeter-level texture is preferably a circular texture. The diameter of each circular pattern is 2 mm, and a convex point 3 with a diameter D of 0.8 mm is arranged at the center of each circular pattern. These patterns are arranged in a radial array.

[0059] S2. The etched or embossed sheet is stretched to form a cooking utensil 1, so that the textured surface 2 is located on the inner surface of the cooking utensil 1, and the texture covers two-thirds of the inner surface of the side wall. The etching or embossing process forms the textured surface 2 on the metal sheet, which simplifies the manufacturing process and reduces the production cost. This embodiment 3 is specifically a frying pan, and other embodiments include but are not limited to an inner pot or a cooking pot.

[0060] S3. The cooking utensil 1 after stretching is polished and cleaned to remove impurities and burrs on the surface;

[0061] S4. Microporous treatment is performed on the surface of the textured road surface 2. The microporous treatment can increase the surface roughness and increase the friction coefficient between the food and the container, thereby reducing the adhesion of the food;

[0062] S5. Perform hardening treatment on the inner surface of the cooking utensil 1. The hardening treatment can enhance the wear resistance and corrosion resistance of the cooking utensil 1 and extend its service life.

[0063] In Examples 1-3, the shape of the textured road surface 2 includes, but is not limited to, any one of a triangle, a fan, a pentagon, a hexagon, an octagon, a circle, an ellipse, a teardrop, a rectangle or a rhombus or a combination thereof, and the array of the textures includes, but is not limited to, an annular array, a radial array or a transverse array. The shape and array of the textured road surface 2 can increase the roughness of the inner surface of the cooking container and form tiny air pockets or liquid channels. These structures help to reduce the direct contact area between the food and the inner surface of the container, thereby reducing adhesion and enhancing non-stick properties. At the same time, a variety of shapes of textured road surfaces 2 are provided, so that the cooking container has a higher aesthetics and personalization while maintaining practicality. Consumers can choose the appropriate texture shape according to their preferences and cooking needs. Preferably, the spacing between each two adjacent textures in the textured road surface is 0.5 mm to 1 mm, which can improve the uniformity of heat and non-stick properties of the textures in the textured road surface.

[0064] Each of the texture shapes in the textured road surface 2 is provided with an outwardly protruding convex point 3, which is aligned with the inner surface of the plate. The function of the convex point 3 is to increase the roughness of the inner surface of the cooking container. This microscopic unevenness helps to reduce the direct contact area between the food and the container surface. When the food is placed in the container, the convex point 3 can form a tiny support point, reduce the adhesion between the food and the container, and thus enhance the non-stick performance; the food will expand or soften after being heated. The design of the convex point 3 helps to form a tiny gap between the food and the container, making it easier for the food to detach from the container surface after being heated, avoiding the occurrence of food adhesion or burning. The design of the convex point 3 can also increase the hardness of the inner surface of the cooking container and improve its wear resistance. During long-term use, the convex point 3 can reduce the friction and scratches of the food on the container surface, thereby extending the service life of the container. The centimeter-level texture is used so that the gap between the convex points 3 can be used as a channel for cleaning, which is convenient for water flow and detergent to enter and remove stains and residues.

[0065] The convex point 3 is located inside each figure in the textured road surface 2, preferably at the center point, wherein the maximum length or diameter of the figure is preferably within the range of 1mm to 5mm, the depth H of the texture is preferably within the range of 0.2mm to 0.5mm, and the diameter D of the convex point 3 in the texture is preferably within the range of 0.5mm to 1mm, and can be a boundary value. The design of the convex point 3 further promotes the uniform transfer of heat and reduces the generation of hot spots and cold spots. At the same time, it limits the size of the figure and the depth of the depression to avoid the problem of food getting stuck due to excessive depression and excessive depression area. For details, refer to Figure 5 As shown, taking rice grains 4 as an example, it can be seen that the rice grains 4 are larger than the groove depressions and protrusions 3, which prevents the rice from sinking into the grooves and has a non-stick effect, and the centimeter-level depressions are more convenient to clean.

[0066] Embodiment 4 of the present invention is based on any one of Embodiments 1-3, and a step of forming a protective film is added, specifically, after S5. The inner surface of the cooking utensil 1 is hardened, S6 is added, and a protective film is provided on the surface of the textured road surface 2, and the thickness of the protective film is 3μm to 8μm. The protective film can increase the hardness of the inner surface of the cooking container, thereby resisting the friction and scratches of the food during the cooking process. The presence of the protective film can significantly reduce such wear and tear and keep the cooking container in good condition. Preferably, the protective film is a silicon dioxide film. The silicon dioxide film is known for its high hardness and can effectively resist the friction and scratches of the food during the cooking process, thereby significantly extending the service life of the cooking container; the silicon dioxide film has good stability to a variety of chemical substances, and can isolate the corrosion of the surface of the cooking container by chemical substances such as seasonings, grease, etc. that may be encountered during the cooking process. At the same time, the silicon dioxide film itself has certain hydrophobicity and non-stickiness, which can further enhance the non-stick properties of the cooking container, making it more difficult for the food to adhere to the container surface during the cooking process. Silica film can withstand high temperature environment and will not be deformed or damaged by the high temperature during cooking. It can reduce the heat loss through the surface of the cooking container and improve thermal efficiency. Silica film usually has high transparency and can clearly show the texture of the surface under the cooking container2, maintaining its original beauty. Silica film is also a widely recognized food-grade material. When used as a protective film for cooking containers, it will not release harmful substances, ensuring food safety.

[0067] In Example 4, the processing of the protective film adopts a non-vapor deposition method. Optionally, the non-vapor deposition method can be a sol-gel method, sputtering deposition, electroplating, chemical plating or other wet chemical methods. Non-vapor deposition methods usually do not require expensive vapor deposition equipment, thereby reducing production costs. Compared with vapor deposition, the process steps of non-vapor deposition methods are simpler, reducing the complexity and time cost of the production process. Non-vapor deposition methods are usually more adaptable to substrate materials and can prepare silica protective films on cooking containers of different materials and shapes. These non-vapor deposition methods have some unique characteristics and advantages in processing silica protective films; compared with vapor deposition, the waste generated by non-vapor deposition methods may be easier to handle and recycle. Non-vapor deposition methods are usually able to form stronger chemical bonds between the film and the substrate, thereby improving the bonding strength and durability of the film.

[0068] In summary, the manufacturing process of an easy-to-clean cooking container provided by the present invention has the following technical effects:

[0069] 1. By adopting non-micron-level, such as millimeter-level or centimeter-level, grain design, food is not easy to embed into the grain. Even if some food remains, it is easier to remove during the cleaning process due to the larger size of the grain. This significantly reduces the difficulty of cleaning and improves the cleaning convenience for users;

[0070] 2. Compared with the traditional complex polishing and coating process, the present invention directly forms a textured surface 2 on the metal sheet by etching or embossing, which serves as the base for subsequent microporous treatment and hardening treatment. This not only simplifies the manufacturing process, but also reduces production costs. Since the textured surface 2 and subsequent treatment enhance the performance of the inner surface, it reduces the dependence on traditional non-stick coatings, further reducing costs;

[0071] 3. The microporous treatment increases the surface roughness and the friction coefficient between the food and the container, thereby reducing the adhesion of the food. This helps prevent the food from burning or adhering to the surface of the container during cooking; the hardening treatment can enhance the wear resistance and corrosion resistance of the cooking utensil 1 and extend its service life. This is especially important for cooking containers that are often subjected to high temperatures and friction with food.

[0072] 4. The easy-to-clean feature of the cooking container allows users to easily remove residual ingredients after cooking and keep the container hygienic. By reducing the adhesion of ingredients, the cooking container can maintain the original flavor of the ingredients and improve the cooking effect.

[0073] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A process for manufacturing an easy-to-clean cooking container, characterized in that: The steps include: Select a metal plate, and etch or emboss one side of the plate to form a textured surface that is recessed into the plate, wherein the textured surface is a centimeter-level texture or a millimeter-level texture; stretching the etched or embossed sheet to form a cooking utensil (1), so that the textured surface is located on the inner surface of the cooking utensil (1); Polishing and cleaning the cooking utensil (1) after stretching; Micro-pore treatment is performed on the surface of the textured road surface; The inner surface of the cooking utensil (1) is hardened.

2. The manufacturing process of an easy-to-clean cooking container according to claim 1, characterized in that: The plate is a single-layer iron plate, and the single-layer iron plate is one of a cold-rolled iron plate and a galvanized iron plate.

3. The manufacturing process of an easy-to-clean cooking container according to claim 1, characterized in that: The plate is a multi-layer composite plate, which includes an outer stainless steel layer, an intermediate metal layer and an inner stainless steel layer, and etching or embossing is performed on the inner stainless steel layer.

4. The manufacturing process of an easy-to-clean cooking container according to claim 1, characterized in that: The shape of the texture in the textured road surface is any one of a triangle, a fan, a pentagon, a hexagon, an octagon, a circle, an ellipse, a teardrop, a rectangle or a rhombus, or a combination thereof, and the array of the texture is a circular array, a radial array or a transverse array.

5. The manufacturing process of an easy-to-clean cooking container according to claim 4, characterized in that: The textured surface is a centimeter-level texture, and each texture shape in the textured surface is provided with an outwardly protruding convex point (3), and the convex point (3) is aligned with the inner surface of the plate.

6. The manufacturing process of an easy-to-clean cooking container according to claim 5, characterized in that: When the shape of the textured road surface is a hexagon, the convex point (3) is located at the center of the hexagon, wherein the distance L between opposite sides of the hexagon is 1 mm to 5 mm, the size range of the texture depth H is 0.2 mm to 0.5 mm, and the size range of the diameter D of the convex point (3) in the texture is 0.5 mm to 1 mm.

7. The manufacturing process of an easy-to-clean cooking container according to claim 1, characterized in that: The textured road surface covers at least one half of the inner surface of the side wall of the cooking container.

8. The manufacturing process of an easy-to-clean cooking container according to claim 1, characterized in that: A protective film is arranged on the surface of the textured road surface, and the thickness of the protective film is 3 μm to 8 μm.

9. The manufacturing process of the easy-to-clean cooking container according to claim 8, characterized in that: The protective film is a silicon dioxide film.

10. The manufacturing process of an easy-to-clean cooking container according to claim 6, characterized in that: The spacing distance between every two adjacent lines in the line road surface is 0.5 mm to 1 mm.

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