Pot

Abstract

The utility model relates to a pot and relates to the technical field of kitchenware, the pot comprises an aluminum pot body, an outer iron layer is arranged on the outer side of the aluminum pot body, a protective layer for enhancing the strength of the aluminum pot body and preventing aluminum ions from being dissolved out is arranged on the inner side of the aluminum pot body, and a non-stick coating is arranged on the side, away from the aluminum pot body, of the protective layer. The outer side of the aluminum pot body is coated with the outer iron layer, so that the pot has electromagnetic compatibility, then the protective layer is arranged on the inner side of the aluminum pot body, the strength and corrosion resistance of the aluminum pot body are enhanced through the protective layer, and finally the non-stick coating is arranged on the side, away from the aluminum pot body, of the protective layer. Therefore, the corrosion resistance of the aluminum pot body is improved, and the pot has electromagnetic compatibility.

Description

Technical Field

[0001] This application relates to the technical field of kitchenware, and in particular to a cookware. Background Technology

[0002] Aluminum pots are widely used in cooking due to their lightweight, corrosion resistance, and good thermal conductivity. However, aluminum pots can react with food during use, causing aluminum ions to leach out, posing a potential health hazard. Furthermore, while the smooth surface of aluminum pots makes cleaning easy, it also easily traps food residue, affecting cooking results and cleaning efficiency. Therefore, improving the non-stick and corrosion-resistant properties of aluminum pots while maintaining their inherent advantages has become a key focus of current technological research.

[0003] Currently, a protective layer is usually applied to the surface of the aluminum pot to improve its corrosion resistance and non-stick properties. The most common protective layer is a dense aluminum oxide layer generated on the surface of the aluminum pot through electrochemical methods. The aluminum oxide significantly improves the hardness and corrosion resistance of the aluminum pot. At the same time, the copper drum combined with the micron-level surface texture design reduces the physical contact area, ultimately improving the non-stick properties of the aluminum pot.

[0004] However, when cooking acidic foods, the aluminum pot body coated with alumina may be slowly corroded by the acidic foods, eventually leading to the risk of chloride ion dissolution. In addition, since neither aluminum nor alumina is magnetic, the aluminum pot body cannot be used on an induction cooker. Utility Model Content

[0005] In order to improve the corrosion resistance of the aluminum pot body and achieve its electromagnetic compatibility, this application provides a cookware.

[0006] The cookware provided in this application adopts the following technical solution:

[0007] A cookware includes an aluminum pot body, an outer iron layer on the outside of the aluminum pot body, a protective layer on the inside of the aluminum pot body to enhance the strength of the aluminum pot body and prevent aluminum ions from dissolving, and a non-stick coating on the side of the protective layer away from the aluminum pot body.

[0008] By adopting the above technical solution, an outer iron layer is provided on the outside of the aluminum pot body to enable the cookware to have electromagnetic compatibility. Then, a protective layer is provided on the inside of the aluminum pot body to enhance the strength and corrosion resistance of the aluminum pot body. Finally, a non-stick coating is provided on the side of the protective layer away from the aluminum pot body to improve the cookware's anti-adhesion properties, thereby improving the corrosion resistance of the aluminum pot body and enabling the cookware to have electromagnetic compatibility.

[0009] Furthermore, the protective layer includes:

[0010] An inner iron layer is disposed on the inner side wall of the aluminum pot body;

[0011] An iron nitride layer is disposed on the side of the inner iron layer away from the aluminum pot body.

[0012] By adopting the above technical solution, the inner iron layer is used to enhance the strength of the aluminum pot body, and the iron nitride layer is used to enhance the corrosion resistance of the aluminum pot body. Ultimately, the strength and corrosion resistance of the aluminum pot body are enhanced. At the same time, the inner iron layer and the iron nitride layer prevent aluminum ions from leaching out, thus improving the safety of the cookware.

[0013] Furthermore, the thickness of the inner iron layer is between 0.1 and 0.5 mm.

[0014] By adopting the above technical solution, the iron nitride layer is formed by nitriding the inner iron layer on the side away from the aluminum pot body, so it is necessary to ensure that the inner iron layer has a large thickness.

[0015] Furthermore, an undercoating layer is provided between the non-stick coating and the protective layer to enhance the adhesion between the non-stick coating and the protective layer.

[0016] By adopting the above technical solution, the base coating is applied to the side of the iron nitride away from the aluminum pot body, and then the non-stick coating is sprayed on the base coating, thereby enhancing the adhesion between the non-stick coating and the iron nitride layer.

[0017] Furthermore, the thickness of the non-stick coating is between 10 and 30 micrometers.

[0018] By adopting the above technical solution, the non-stick coating is mainly used to reduce the adhesion of cookware. The thickness of the non-stick coating within this range can ensure that the cookware has good anti-stick properties, and at the same time, it can greatly reduce the probability of the non-stick coating peeling off.

[0019] Furthermore, a heating adapter layer is provided on the bottom of the outer iron layer to facilitate electromagnetic heating. The heating adapter layer is made of iron material and is directly bonded to the outer iron layer.

[0020] By adopting the above technical solution, the heating adapter layer is used to increase the thickness of the iron material at the bottom of the cookware, so as to adapt it to the induction cooker and thus enhance the electromagnetic compatibility of the cookware.

[0021] Furthermore, the outer iron layer and the inner iron layer are connected to each other on one side of the top of the aluminum pot body and cover the aluminum pot body.

[0022] By adopting the above technical solution, the outer iron layer and the inner iron layer are connected to each other to cover the aluminum pot body, thereby reducing the corrosiveness of the external environment to the inner aluminum pot body and improving the stability of the cookware.

[0023] Furthermore, a nickel-based transition layer is provided between the inner iron layer and the aluminum pot body, and the nickel-based transition layer is used to enhance the bonding strength between the aluminum pot body and the inner iron layer.

[0024] By adopting the above technical solution, a nickel-based transition layer is set between the inner iron layer and the aluminum pot body. The nickel-based transition layer reduces the interfacial thermal stress difference and enhances the bonding strength between the aluminum pot body and the inner iron layer, thereby reducing the probability of delamination between the inner iron layer and the aluminum pot body.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. By coating the inner and outer sides of the aluminum pot body with an inner iron layer and an outer iron layer respectively, and then nitriding the inner iron layer to form an iron nitride layer, the corrosion resistance and strength of the pot are improved. Finally, a non-stick coating is applied to the side of the iron nitride layer away from the aluminum pot body to improve the pot's anti-adhesion properties. This improves the corrosion resistance of the aluminum pot body and makes the pot electromagnetically compatible.

[0027] 2. By setting a nickel-based transition layer between the inner iron layer and the aluminum pot body, the difference in interfacial thermal stress is reduced, thereby lowering the probability of delamination between the inner iron layer and the aluminum pot body. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the cookware structure of Embodiment 1 of this application;

[0029] Figure 2 This is a half-sectional structural diagram of Embodiment 1 of this application;

[0030] Figure 3 yes Figure 2 Enlarged diagram of section A in the middle;

[0031] Figure 4 yes Figure 2 Enlarged schematic diagram of section B.

[0032] Figure 5 This is a half-sectional structural diagram of Embodiment 2 of this application;

[0033] Figure 6 yes Figure 5 Enlarged diagram of section C.

[0034] Reference numerals: 1. Aluminum pot body; 2. Outer iron layer; 3. Protective layer; 31. Inner iron layer; 32. Iron nitride layer; 4. Non-stick coating; 5. Base coating; 6. Heating adapter layer; 7. Nickel-based transition layer. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-6This application will be described in further detail.

[0036] This application discloses a cookware.

[0037] Example 1

[0038] Reference Figure 1 and Figure 2 A cookware includes an aluminum pot body 1, an outer iron layer 2 on the outside of the aluminum pot body 1, a protective layer 3 on the inside of the aluminum pot body 1 that enhances the strength of the aluminum pot body 1 and prevents aluminum ions from dissolving, and a non-stick coating 4 on the side away from the aluminum pot body 1.

[0039] Reference Figure 2 , Figure 3 and Figure 4 The protective layer 3 includes an inner iron layer 31 and an iron nitride layer 32. The inner iron layer 31 is disposed on the inner wall of the aluminum pot body 1, and the iron nitride layer 32 is disposed on the side of the inner iron layer 31 away from the aluminum pot body 1. Specifically, the inner and outer surfaces of the aluminum pot body 1 are first sandblasted to remove the oxide layer and impurities on the surface of the aluminum pot body 1, thereby enhancing the adhesion between the inner iron layer 31 and the aluminum pot body 1 and between the outer iron layer 2 and the aluminum pot body 1. Then, plasma spraying technology is used to spray iron onto the inner and outer walls of the aluminum pot body 1. The material is sprayed and then cured to form an inner iron layer 31 and an outer iron layer 2 attached to the inner and outer surfaces of the aluminum pot body 1. The outer iron layer 2 and the inner iron layer 31 are connected to each other on the top side of the aluminum pot body 1, thus covering the aluminum pot body 1. The outer iron layer 2 and the inner iron layer 31 enable the cookware to achieve electromagnetic compatibility, making it easy for the induction cooker to heat the cookware. In this embodiment, the thickness of the inner iron layer 31 and the outer iron layer 2 is controlled between 0.1-0.5 mm, and the iron material can be iron powder or iron alloy.

[0040] Reference Figure 2 and Figure 3 Iron nitride is disposed on the side of the inner iron layer 31 away from the aluminum pot body 1. Before applying iron nitride, the inner iron layer 31 is polished to make it smooth and flat, which facilitates the adhesion of the subsequent coating. Then, it is degreased and cleaned to remove surface oil. Finally, the inner iron layer 31 is nitrided. In this embodiment, the outer iron layer 2 is also nitrided to improve the corrosion resistance of the outer iron layer 2.

[0041] Reference Figure 3A base coating 5 is provided between the non-stick coating 4 and the iron nitride layer 32 to enhance the adhesion between the non-stick coating 4 and the protective layer 3. The base coating 5 is sprayed on the side of the iron nitride layer 32 away from the aluminum pot body 1. Then, the non-stick coating 4 is sprayed on the base coating 5 using plasma spraying technology. The base coating 5 enhances the adhesion between the non-stick coating 4 and the protective layer 3, reducing the probability of separation between the non-stick coating 4 and the iron nitride layer 32. In this embodiment, the base coating 5 is epoxy resin sprayed on the iron nitride layer 32, and the non-stick coating 4 can be either a ceramic coating or a nano coating. The thickness of the non-stick coating 4 in this embodiment is between 10 and 30 micrometers.

[0042] Reference Figure 2 and Figure 3 The outer iron layer 2 has a heating adapter layer 6 on its bottom surface to facilitate electromagnetic heating. The heating adapter layer 6 is made of iron material and is directly bonded to the outer iron layer 2. The heating adapter layer 6 increases the iron thickness at the bottom of the cookware, thereby facilitating electromagnetic heating of the cookware.

[0043] The working principle of Embodiment 1 of this application is as follows:

[0044] By covering the inner and outer sides of the aluminum pot body 1 with an inner iron layer 31 and an outer iron layer 2 respectively, and then nitriding the inner iron layer 31 to form an iron nitride layer 32, the corrosion resistance and strength of the pot are improved. Finally, a non-stick coating 4 is provided on the side of the iron nitride layer 32 away from the aluminum pot body 1, thereby improving the anti-adhesion of the pot. This improves the corrosion resistance of the aluminum pot body 1 and makes the pot electromagnetically compatible.

[0045] Example 2

[0046] Reference Figure 5 and Figure 6 The difference between this embodiment and embodiment 1 is that a nickel-based transition layer 7 is provided between the inner iron layer 31 and the aluminum pot body 1. The nickel-based transition layer 7 is used to enhance the bonding strength between the aluminum pot body 1 and the inner iron layer 31, thereby reducing the probability of peeling between the aluminum pot body 1 and the inner iron layer 31.

[0047] Reference Figure 5 and Figure 6Specifically, the inner and outer surfaces of the aluminum pot body 1 are first sandblasted to remove the oxide layer and impurities. Then, nickel-based alloy powder is used for plasma spraying to form a uniform and dense transition layer on the inner surface of the aluminum pot body 1. Finally, on the side of the nickel-based transition layer 7 away from the aluminum pot body 1, plasma spraying technology is used to spray iron material onto the nickel-based transition layer 7 of the aluminum pot body 1 to form an inner iron layer 31. The nickel-based transition layer 7 reduces interfacial thermal stress and enhances the bonding strength between the aluminum pot body 1 and the inner iron layer 31, reducing the probability of the inner iron layer 31 peeling off.

[0048] The working principle of Embodiment 2 of this application is as follows:

[0049] By setting a nickel-based transition layer 7 between the inner iron layer 31 and the aluminum pot body 1, the difference in interfacial thermal stress is reduced, thereby lowering the probability of delamination between the inner iron layer 31 and the aluminum pot body 1.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cookware, characterized in that: The aluminum pot body (1) is provided with an outer iron layer (2) on the outside of the aluminum pot body (1), and a protective layer (3) is provided on the inside of the aluminum pot body (1) to enhance the strength of the aluminum pot body (1) and prevent aluminum ions from dissolving. A non-stick coating (4) is provided on the side of the protective layer (3) away from the aluminum pot body (1).

2. The cookware according to claim 1, characterized in that: The protective layer (3) includes: An inner iron layer (31) is provided on the inner side wall of the aluminum pot body (1); Iron nitride layer (32) is disposed on the side of the inner iron layer (31) away from the aluminum pot body (1).

3. A cookware according to claim 2, characterized in that: The thickness of the inner iron layer (31) is between 0.1 and 0.5 mm.

4. A cookware according to claim 2, characterized in that: An undercoating (5) is provided between the non-stick coating (4) and the protective layer (3) to enhance the adhesion between the non-stick coating (4) and the protective layer (3).

5. A cookware according to claim 4, characterized in that: The thickness of the non-stick coating (4) is between 10 and 30 micrometers.

6. A cookware according to claim 1, characterized in that: The outer iron layer (2) has a heating adapter layer (6) on its bottom surface to facilitate electromagnetic heating. The heating adapter layer (6) is made of iron material and is directly bonded to the outer iron layer (2).

7. A cookware according to claim 2, characterized in that: The outer iron layer (2) and the inner iron layer (31) are connected to each other on one side of the top of the aluminum pot body (1) and cover the aluminum pot body (1).

8. A cookware according to claim 2, characterized in that: A nickel-based transition layer (7) is provided between the inner iron layer (31) and the aluminum pot body (1), and the nickel-based transition layer (7) is used to enhance the bonding strength between the aluminum pot body (1) and the inner iron layer (31).

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