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Preparation method of non-stick pan coating layer for cookware

A non-stick pan and coating layer technology, which is applied in the direction of household utensils, kitchen utensils, special materials for cooking utensils, etc., can solve the problem of unsatisfactory bonding and adhesion of molten TiC, TiCN or TiN and cracked coatings, and pores in the coating structure , easy to wear and other problems, to achieve the effect of ensuring environmental protection, non-toxicity, low cost and long service life

Inactive Publication Date: 2018-06-01
FUJIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This solves the problem that the existing traditional non-stick pan coatings are easy to decompose harmful gases at high temperatures due to fluoride. However, since aluminum oxide or aluminum nitride is used as the transition layer, TiC is then deposited on the transition layer. , TiCN or TiN nanostructure hard ceramic layer, which makes the whole production process complicated, the coating structure has pores, incomplete melting of TiC, TiCN or TiN and cracks, and the mechanical bonding and adhesion of the coating is relatively unsatisfactory, relatively easy Wear, also has the defect of higher cost

Method used

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  • Preparation method of non-stick pan coating layer for cookware

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preparation example Construction

[0014] A kind of preparation method of the non-stick coating layer of cookware of the present invention, this preparation method comprises following specific operation steps:

[0015] (1), the boron nitride material that preparation purity is 99.5% is coating, stand-by; And the component of this boron nitride material is as follows: boron 43wt%, diboron trioxide 0.1wt%, carbon 0.03wt%, balance for water;

[0016] (2) Using the laser cladding process, the coating prepared above is clad on the substrate, that is, the inner surface of the pot to form a non-stick coating layer; wherein, the laser cladding process parameters are: laser power 1500 ~ 3500W, scanning The speed is 3-12mm / S, and the powder feeding volume is 6-20g / min.

[0017] Among them, the substrate is a metal pot or a ceramic pot; the average size of the powder particles of the boron nitride material is 60-160m, which makes the final non-stick pan coating more uniform; and through the boron nitride material in the ...

Embodiment 1

[0021] Prepare a boron nitride material with a purity of 99.5%, that is, a paint, for use; and the components of the boron nitride material are as follows: boron 43wt%, diboron trioxide 0.1wt%, carbon 0.03wt%, and the balance is water;

[0022] Using the preset laser cladding process, the coating obtained above is clad on the inner surface of the aluminum alloy pan to form a non-stick pan coating layer; wherein, the laser cladding process parameters are: laser power 2000W, scanning speed 10mm / S , The amount of powder feeding is 7.5g / min.

Embodiment 2

[0024] Prepare a boron nitride material with a purity of 99.5%, that is, a paint, for use; and the components of the boron nitride material are as follows: boron 43wt%, diboron trioxide 0.1wt%, carbon 0.03wt%, and the balance is water;

[0025] Using a synchronous laser cladding process, the coating obtained above is clad on the inner surface of the aluminum alloy pan to form a non-stick pan coating layer; wherein, the laser cladding process parameters are: laser power 1500W, scanning speed 12mm / S, The powder delivery rate is 6g / min.

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Abstract

The invention provides a preparation method of a non-stick pan coating layer for cookware. The preparation method specifically comprises the following steps that (1), a boron nitride material with thepurity being 99. 5%, namely a coating is prepared for standby application, wherein the boron nitride material comprises, by weight percentage, 43% of boron, 0.1% of diboron trioxide, 0.03% of carbonand the balance water; and (2), the prepared coating is melted and clad on a substrate, namely the inner surface of the cookware by adopting a laser cladding process so as to form the non-stick pan coating layer, wherein the parameters of the laser cladding process are characterized in that the laser power is 1500-3500 W, the scanning speed is 3-12 mm / S, and the powder feeding rate is 6-20 g / min.The preparation method has the advantages that the manufacturing process is relatively simple and easy to operate, and the cost is low; and the prepared non-stick pan coating layer for the cookware isprovided with a fluoride-free metallurgical bonded coating, does not react with acid and alkali, has good chemical stability, has high-temperature resistance and a high wetting angle, and is non-toxic and safe.

Description

【Technical field】 [0001] The invention relates to a process in the cooking process of cooking utensils, in particular to a method for preparing a non-stick coating layer of cooking utensils. 【Background technique】 [0002] The non-stick pan is one of the existing more commonly used pots. The reason why the existing non-stick pan is not sticky is that there is a coating called "Teflon" on the bottom of the pan. Teflon is a fluorine-containing resin, including polytetrafluoroethylene, polyperfluoroethylene propylene and various fluorine-containing copolymers. However, after research, it was found that at high temperatures, due to the influence of fluoride, the coating of Teflon would decompose and release harmful gases to the human body; according to the national mandatory standard "Food Containers" approved and implemented by the Ministry of Health on May 1, 1990 The Hygienic Standard for Polytetrafluoroethylene Coating on the Inner Wall stipulates: "The standard sets two re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10A47J36/02A47J27/00
CPCA47J27/00A47J36/025C23C24/10
Inventor 简明德孔令华练国富姚明浦简慈萱
Owner FUJIAN UNIV OF TECH
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