Super crystal composite ionic nitrided anticorrosive metal pot

By forming a supercrystalline composite ion wear-resistant protective layer on the surface of the metal pot, the corrosion problem caused by the porous structure of traditional iron pots is solved, achieving wear-resistant protection and corrosion resistance, thus improving the service life of the cookware and food safety.

CN224420791UActive Publication Date: 2026-06-30YONGKANG JUELING ELECTRIC CO LTD +1
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Patent Information

Application Number
CN202520532370.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-06-30
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

The porous structure of the white layer in traditional iron pots allows water molecules to easily penetrate, causing metal nitrides to react with impurities and dissolved oxygen in the water, leading to corrosion of the pots and affecting food safety and lifespan.

Method used

A supercrystalline composite ion wear-resistant protective layer is formed on the surface of the metal pot. A honeycomb structure is formed by plasma etching and nitrogen and titanium atoms are infiltrated to generate high-hardness nitrides, thus constructing a wear-resistant protective layer and enhancing corrosion resistance.

Benefits of technology

It significantly improves the wear resistance and corrosion resistance of cookware, extends its service life, and ensures food safety and cooking stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a supercrystalline composite ion nitriding anti-corrosion metal pot, belonging to the technical field of metal pots. It includes a metal pot body and a handle connected to the pot body, with a detachable connection between them. The metal pot body includes a metal substrate layer. At least a portion of the outer and inner surfaces of the metal substrate layer are provided with a honeycomb structure layer obtained by plasma etching. A supercrystalline composite ion wear-resistant protective layer is provided on the honeycomb structure layer. This supercrystalline composite ion wear-resistant protective layer is formed by nitrogen atoms and titanium atoms penetrating into the pot surface and diffusing inwards. This invention reduces light cooking wear, extends the lifespan of the pot, and the integration of titanium ions into the crystal lattice optimizes the structure, enhances resistance to external forces, forms a corrosion-resistant barrier, resists water vapor, salt, and acid / alkali corrosion, ensures food safety and cooking stability, and significantly improves the performance of the pot, thus possessing certain practical value.
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Description

Technical Field

[0001] This utility model mainly relates to the technical field of metal pots, specifically a supercrystalline composite ion nitriding anti-corrosion metal pot. Background Technology

[0002] A metal pot is a cooking utensil made primarily of metal. Common metal pots include iron pots, stainless steel pots, copper pots, and aluminum pots. Metal pots have excellent heat conductivity, which can quickly and evenly transfer heat to food, allowing food to cook in a short time. They meet the needs of various cooking methods, such as frying, stir-frying, braising, deep-frying, stewing, and boiling. The surface of metal pots is usually smooth, making them less likely to absorb food residue and grease, and they are relatively easy to clean. In addition, metal pots are generally sturdy and durable, able to withstand high temperatures and frequent use, and are not easily damaged.

[0003] The compound layer on the surface of traditional iron pots is formed by molten salt nitrogen-carbon treatment or gas nitriding to create a "white layer," which is a complex structure of various metal nitrides. The diffusion layer beneath it is mainly composed of iron with high nitrogen content and metal nitride particles. Although the "white layer" has high hardness and shows initial wear resistance, it is brittle and hard but lacks toughness. It is prone to cracking and damage when subjected to external impact or temperature changes. At the same time, the "white layer" is porous. When exposed to water, water molecules can easily penetrate into the pores. Impurities and dissolved oxygen in the water react with the metal nitrides, causing internal corrosion, loss of protection, and even rust falling off and mixing into food, posing a food safety hazard. This seriously restricts the improvement of the quality and service life of iron pots. Utility Model Content

[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing solutions are too simplistic. Specifically, this utility model provides a supercrystalline composite ion nitriding anti-corrosion metal pot to solve the technical problem mentioned in the background that the "white layer" in traditional iron pots has a porous structure, allowing water molecules to easily penetrate the pores. Impurities and dissolved oxygen in the water react with the metal nitrides, causing internal corrosion and failure of the protective coating.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A supercrystalline composite ion nitriding anti-corrosion metal pot includes a metal pot body and a handle connected to the metal pot body. The metal pot body and the handle are detachably connected. The metal pot body includes a metal substrate layer. At least a portion of the outer and inner surfaces of the metal substrate layer are provided with a honeycomb structure layer obtained by plasma etching. A supercrystalline composite ion wear-resistant protective layer is provided on the honeycomb structure layer. The supercrystalline composite ion wear-resistant protective layer is formed by nitrogen atoms and titanium atoms penetrating into the pot surface and diffusing into the interior.

[0007] Furthermore, the thickness of the supercrystalline composite ion-resistant protective layer is 50 micrometers.

[0008] Furthermore, the surface hardness of the metal pot body is greater than 2500 HV.

[0009] Furthermore, the pot handle is a straight handle, and the straight handle is connected to the metal pot body by screws;

[0010] The handle is a ring handle, and the ring handle is connected to the metal pot body by screws.

[0011] Furthermore, the pot handle is provided with a heat-insulating protective sleeve that is compatible with the pot handle.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention, through the design of a metal substrate layer, a honeycomb structure layer, and a supercrystalline composite ion wear-resistant protective layer, achieves the injection of nitrogen and titanium composite ions into the surface of a metal pot using plasma and supercrystalline composite ion technology. Nitrogen atoms react with iron atoms to generate high-hardness nitrides, constructing a wear-resistant protective layer that significantly reduces cooking wear and extends the pot's lifespan. Titanium ions integrate into the crystal lattice, optimizing the structure and enhancing resistance to external forces, forming a corrosion-resistant barrier against moisture, salt, and acid / alkali corrosion. This maintains a good surface condition of the pot in various scenarios, ensuring food safety and cooking stability, significantly improving pot performance, and possessing considerable practical value.

[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial cross-sectional schematic diagram of the metal pot body of this utility model.

[0017] In the diagram: 1. Metal pot body; 11. Metal substrate layer; 12. Honeycomb structure layer; 13. Supercrystalline composite ion wear-resistant protective layer; 2. Pot handle; 3. Heat insulation protective sleeve. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] Please refer to the appendix carefully. Figure 1-2 A supercrystalline composite ion nitriding anti-corrosion metal pot includes a metal pot body 1 and a handle 2 connected to the metal pot body 1. The metal pot body 1 and the handle 2 are detachably connected. The metal pot body 1 includes a metal substrate layer 11. At least a portion of the outer and inner surfaces of the metal substrate layer 11 are provided with a honeycomb structure layer 12 obtained by plasma etching. The honeycomb structure layer 12 is formed by using a vacuum ion cleaning device, employing arc ion plating as the ionization source, and performing arc-enhanced argon ion bombardment. A high-density electron flow is directed through the metal pot body 1, ionizing Ar atoms. The Ar+ flow bombards the workpiece with ions, forming a honeycomb structure on the microscopic surface. At the same time, impurities and oxides on the metal surface are cleaned by ion bombardment. A supercrystalline composite ion wear-resistant protective layer 13 is provided on the honeycomb structure layer 12. The supercrystalline composite ion wear-resistant protective layer 13 is formed by nitrogen atoms and titanium atoms penetrating into the pot surface and diffusing into the interior.

[0022] Through the above structure, nitrogen and titanium composite ions are injected into the surface of a metal pot using plasma and supercrystalline composite ion technology. Nitrogen atoms react with iron atoms to generate high-hardness nitrides, which form a wear-resistant protective layer, significantly reducing cooking wear and extending the life of the pot. Titanium ions are integrated into the crystal lattice to optimize the structure, enhance resistance to external forces, and form a corrosion-resistant barrier to resist water vapor, salt, and acid and alkali corrosion. This maintains a good surface condition of the pot in various scenarios, ensures food safety and cooking stability, significantly improves the performance of the pot, and has certain practical value.

[0023] Please refer to the appendix carefully. Figure 1The pot handle 2 is a straight handle, which is connected to the metal pot body 1 by screws; the pot handle 2 is a ring handle, which is connected to the metal pot body 1 by screws. Both types of handles have obvious advantages when carrying, as they can bear force from both sides, making it more stable when lifting the pot, especially when it is full of food, which can effectively prevent it from tipping over. The straight handle is also convenient for single-person operation, allowing the user to better control the pot and exert cooking skills during actions such as stir-frying and tossing. The pot handle 2 is equipped with a heat-insulating protective sleeve 3 that is adapted to the pot handle 2 to avoid burns, increase the maximum static friction, and prevent slippage.

[0024] Please refer to the appendix carefully. Figure 2 The thickness of the supercrystalline composite ion wear-resistant protective layer 13 is 50 micrometers, and the surface hardness of the metal pot body 1 is greater than 2500HV. The supercrystalline composite ion wear-resistant protective layer 13 is formed in the vacuum chamber of the coating machine. After the vacuum degree of the vacuum chamber is evacuated to 0.015 Pa, the bias voltage is set to 120V, and the temperature is heated to 480 degrees. Argon (300), nitrogen (50), and hydrogen (200) are filled in. At the same time, the titanium target is turned on and the machine is continuously operated for 2 hours to allow nitrogen atoms and titanium atoms to penetrate into the surface of the pot and diffuse into the interior, forming the supercrystalline composite ion wear-resistant protective layer 13. This allows the metal pots of different materials to achieve a surface hardness of 2500HV and strong anti-corrosion performance.

[0025] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A supercrystalline composite ion nitriding anti-corrosion metal pot, comprising a metal pot body (1) and a handle (2) connected to the metal pot body (1), wherein the metal pot body (1) and the handle (2) are detachably connected, characterized in that, The metal pot body (1) includes a metal substrate layer (11), at least a portion of the outer and inner surfaces of the metal substrate layer (11) are provided with a honeycomb structure layer (12) obtained by plasma etching, and a supercrystalline composite ion wear-resistant protective layer (13) is provided on the honeycomb structure layer (12), and the supercrystalline composite ion wear-resistant protective layer (13) is formed by nitrogen atoms and titanium atoms penetrating into the pot surface and diffusing into the interior.

2. The supercrystalline composite ion nitriding corrosion-resistant metal pot according to claim 1, characterized in that, The thickness of the supercrystalline composite ion wear-resistant protective layer (13) is 50 micrometers.

3. The supercrystalline composite ion nitriding corrosion-resistant metal pot according to claim 1, characterized in that, The surface hardness of the metal pot body (1) is greater than 2500HV.

4. The supercrystalline composite ion nitriding corrosion-resistant metal pot according to claim 1, characterized in that, The handle (2) is a straight handle, and the straight handle is connected to the metal pot body (1) by screws; The handle (2) is a ring handle, and the ring handle is connected to the metal pot body (1) by screws.

5. The supercrystalline composite ion nitriding corrosion-resistant metal pot according to claim 1, characterized in that, The handle (2) is provided with a heat-insulating protective sleeve (3) that is compatible with the handle (2).