A kind of manufacture method of non-stick coating

A technology of non-stick coating and production method, which is applied in coating, manufacturing tools, fireproof coating, etc., can solve the problems of not being able to make acidic food, affecting the performance of the pot body, and easy loss of heat, etc., and achieves good chemical stability and porosity Less, excellent adhesion effect

Active Publication Date: 2020-05-19
FUJIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the non-stick coating in the existing non-stick container is easy to fall off under the action of high temperature, and has poor thermal conductivity, low thermal efficiency, and easy loss of heat, which affects the performance of the pot body.
In addition, some non-stick pans commonly used in the market use a processing aid PFOA (perfluorooctanoic acid ammonium) in the non-stick coating. PFOA (perfluorooctanoic acid ammonium) decomposes at high temperature or reacts with acidic substances to produce toxic substances

Method used

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  • A kind of manufacture method of non-stick coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method of making a non-stick coating, comprising the following steps:

[0032] 1. Pre-treat the inner surface of the pot to remove dust, grease and rust;

[0033] 2. Preheat the inner surface of the pot to 100℃;

[0034] 3. Using the plasma spraying system, the powder material of the base layer is preset on the inner surface of the pot by the method of plasma spraying powder, and then the base layer is obtained by electron beam welding; in the same way, the powder material of the first transition layer and the powder material of the second layer are preset layer by layer. transition layer powder material and surface layer powder material to obtain a first transition layer, a second transition layer and a surface layer;

[0035] The process parameters of the plasma spray powder are as follows: the angle of the spray gun: 45-90 degrees, the current is 400-800A, the distance between the nozzle of the spray gun and the inner surface of the container is 10-70cm, the movin...

Embodiment 2

[0039] A method of making a non-stick coating, comprising the following steps:

[0040] 1. Pre-treat the inner surface of the pot to remove dust, grease and rust;

[0041] 2. Preheat the inner surface of the pot to 200℃;

[0042] 3. Using the plasma spraying system, the powder material of the base layer is preset on the inner surface of the pot by the method of plasma spraying powder, and then the base layer is obtained by electron beam welding; in the same way, the powder material of the first transition layer and the powder material of the second layer are preset layer by layer. transition layer powder material and surface layer powder material to obtain a first transition layer, a second transition layer and a surface layer;

[0043] The process parameters of plasma spraying are as follows: the angle of the spray gun: 45-90 degrees, the current is 400-800A, the distance between the nozzle of the spray gun and the inner surface of the container is 10-70cm, the moving speed ...

Embodiment 3

[0047] A method of making a non-stick coating, comprising the following steps:

[0048] 1. Pre-treat the inner surface of the pot to remove dust, grease and rust;

[0049] 2. Preheat the inner surface of the pot to 300℃;

[0050] 3. Using the plasma spraying system, the powder material of the base layer is preset on the inner surface of the pot by the method of plasma spraying powder, and then the base layer is obtained by electron beam welding; in the same way, the powder material of the first transition layer and the powder material of the second layer are preset layer by layer. transition layer powder material and surface layer powder material to obtain a first transition layer, a second transition layer and a surface layer;

[0051] The process parameters of the plasma spray powder are as follows: the angle of the spray gun: 45-90 degrees, the current is 400-800A, the distance between the nozzle of the spray gun and the inner surface of the container is 10-70cm, the movin...

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Abstract

The invention discloses a manufacturing method for a non-stick coating. The non-stick coating comprises a substrate layer arranged on the inner surface of a pot body, wherein a first transition layeris arranged on the substrate layer; a second transition layer is arranged on the first transition layer; and a surface layer is arranged on the second transition layer. According to the non-stick coating which does not contain fluoride and is in metallurgical bonding, the substrate layer adopts a high-temperature-resistant binder material which is low in aluminum-nickel melting point and is good in wettability, is easily bonded with matrix, and is excellent in adhesion; each layer of paint is mixed progressively, so that the boning performance is good, and therefore, the paint is not liable todrop; a micro structure of the coating continuously changes in a special direction, and mechanical properties and the structure of the coating gradually change in the thickness direction, so that a thermal stress interface generated inside the coating as a result of great difference of physical parameters between metal matrix and a ceramic layer is eliminated, and therefore, the purpose of relieving thermal stress is achieved, and cracks are prevented. Besides, the non-stick coating is simple in manufacturing process, is easy to operate and is low in cost.

Description

technical field [0001] The invention relates to the technical field of non-stick pans, in particular to a method for making a non-stick coating. Background technique [0002] Non-stick pans are pots that do not stick to the bottom of the pan for cooking. The advent of non-stick pans has brought great convenience to people's lives. People no longer have to worry about cooking and they will burn accidentally and stick to the pan. on the wall. Non-stick pans have nothing to do with the appearance of ordinary pans. They only coat the inner surface of the pan with a non-stick coating, which is very popular among the public. [0003] In addition to being safe and hygienic, the non-stick coating should also have properties such as oxidation resistance, wear resistance, high temperature resistance, and corrosion resistance. However, the non-stick coating in the existing non-stick container is easy to fall off under the action of high temperature, and has poor thermal conductivity,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K15/00A47J27/00A47J36/02C09D1/00C09D5/18C09D7/61
CPCA47J27/002A47J36/025B23K15/0046C09D1/00C09D5/18C09D7/61
Inventor 简明德王乾廷韦铁平董俊豪
Owner FUJIAN UNIV OF TECH
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