Aluminum alloy-based inorganic non-stick coating and preparation method of aluminum alloy-based kitchen non-stick tool

By adopting a structure of corrosion-resistant layer, porous layer and non-stick layer on aluminum alloy-based non-stick cookware, the problem of organic coating decomposition and poor scratch resistance at high temperatures is solved, and the aluminum alloy-based inorganic non-stick coating is realized. It has good wear resistance, scratch resistance and corrosion resistance, and matches the sintering temperature, making it suitable for industrial production.

CN115846171AActive Publication Date: 2023-03-28HENAN KELONG PINSHENG IND CO LTD
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Patent Information

Application Number
CN202211510664.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2022-11-29
Publication Date
2023-03-28
Estimated Expiration
2042-11-29

AI Technical Summary

Technical Problem

The organic non-stick coating of existing aluminum alloy-based non-stick cookware will decompose harmful substances at high temperatures and has poor scratch resistance, making it difficult to meet cooking needs. Moreover, the sintering temperature of the inorganic non-stick coating does not match the melting point of the aluminum alloy substrate, resulting in Performance issues.

Method used

It adopts a structure of corrosion-resistant layer, porous layer and non-stick layer laminated in sequence. The corrosion-resistant layer is in contact with the aluminum alloy matrix. The porous layer contains low-temperature glass powder to match the sintering temperature, forming a porous structure to improve wear resistance, scratch resistance and corrosion resistance. .

Benefits of technology

It achieves good wear resistance, scratch resistance and corrosion resistance of the aluminum alloy-based inorganic non-stick coating, avoids the use of organic fluorine components, is suitable for industrial mass production, and improves the non-stick performance through a porous structure.

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Abstract

The invention provides an aluminum alloy-based inorganic non-stick coating and a preparation method of an aluminum alloy-based kitchen non-stick tool, and belongs to the technical field of inorganic non-stick coatings. The aluminum alloy-based inorganic non-stick coating comprises a corrosion-resistant layer, a porous layer and a non-stick layer which are sequentially stacked, wherein the corrosion-resistant layer is in contact with an aluminum alloy matrix. By arranging the corrosion-resistant layer, the bonding strength of the non-stick coating and an aluminum alloy matrix can be improved, and meanwhile the non-stick coating is endowed with good wear resistance and corrosion resistance; by arranging the porous layer and the non-stick layer, the non-stick coating can have a porous structure, small water drops in dishes can quickly rise to form an air film in the cooking process, the dishes are prevented from making contact with a pot, and the non-stick performance is improved; in addition, oil is sucked into the small holes, so that an oil film is formed, and the non-sticky effect is achieved.
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