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Preparation method of aluminum alloy non-stick pan coating

An aluminum alloy, non-stick pan technology, applied in coating, device for coating liquid on the surface, anodizing and other directions, can solve the problems of poor heat preservation effect, short service life, poor scratch resistance, etc., and prolong the service life , good thermal insulation effect, high bonding strength effect

Inactive Publication Date: 2012-09-19
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problems of poor scratch resistance, poor heat resistance, short service life and poor heat preservation effect in existing aluminum alloy non-stick pan coatings, and proposes a preparation method of aluminum alloy non-stick pan coatings

Method used

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specific Embodiment approach 1

[0015] Embodiment 1: In this embodiment, a method for preparing an aluminum alloy non-stick pan coating is carried out according to the following steps:

[0016] 1. Preparation of alkaline solution: the alkaline solution is prepared from potassium hydroxide solution and sodium silicate solution, wherein the ratio of the weight of potassium hydroxide, sodium silicate to the volume of the alkaline solution is (1~2) g: (2~20) g: 1L;

[0017] 2. Micro-arc oxidation film production: first pour the alkaline solution prepared in step 1 into a stainless steel square tank, then place aluminum alloy pot products in the alkaline solution, and use an asymmetric positive and negative pulse power supply to load on the stainless steel square tank. On the tank and aluminum alloy pan products, the power-on time is 30~90min, and a layer of Al is formed on the inner and outer surfaces of the aluminum alloy pan products. 2 o 3 The setting range of the positive and negative pulse duty ratio of t...

specific Embodiment approach 2

[0025] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the ratio of the weight of potassium oxide and sodium silicate to the volume of the alkaline solution described in step one is (1.2 ~ 1.8) g: (4 ~16)g: 1L. Other steps and parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0026] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the ratio of the weight of potassium oxide and sodium silicate to the volume of the alkaline solution described in step 1 is 1.5g:10g:1L. Other steps and parameters are the same as in the first embodiment.

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Abstract

The invention discloses a preparation method of an aluminum alloy non-stick pan coating, and relates to a preparation method of a non-stick pan coating. The invention solves the problems of poor scratch resistance, poor heat resistance, short service life and poor thermal insulation effect of the conventional aluminum alloy non-stick pan coating. The preparation method is realized by the following steps: 1, preparing alkaline solution; 2, preparing a film through micro-arc oxidization; 3, spraying a non-stick coating; and 4, drying. By adopting the aluminum alloy non-stick pan coating prepared by the method provided by the invention has the characteristics of good scratch resistance, high use temperature, long service life and good thermal insulation effect, and the preparation method can be applied to the technical field of surface treatment of light metal material.

Description

technical field [0001] The invention relates to a preparation method of an aluminum alloy non-stick pan coating. Background technique [0002] At present, there are two methods of preparing aluminum alloy non-stick pan coatings: 1. Aluminum alloy pan products are directly sprayed with a layer of Teflon or other non-stick coatings after sandblasting or shot peening; The finished product (also after sandblasting or shot blasting) is anodized, and then a layer of Teflon or other non-stick coating is sprayed on the oxidized surface. Both of the above two treatment methods have the following disadvantages: 1. The scratch resistance of the coating is weak. When cooking with aluminum alloy non-stick pan products, it is generally not allowed to use iron shovels; 2. The heat resistance of the coating is poor. When cooking non-stick pan products, the coating temperature of the pan body rises rapidly, and the general heating temperature is not allowed to exceed 280°C; 3. The service l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/06C25D11/18B05D5/08B05D3/00B05D7/14C09D127/18
Inventor 狄士春
Owner HARBIN INST OF TECH
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