High-strength and long-life titanium silver white appliance backplane

Abstract

This case involves a high-strength and long-life titanium silver white home appliance backplane, which is sequentially provided with a titanium silver white finish coating, a connecting layer, a titanium silver white precoat, a first passivation layer, a galvanized sheet, a second passivation layer, and a titanium silver white backplane. Coating; titanium silver white fine coating includes: polyamide resin, silver powder, silver oxide, titanium dioxide, surfactant; titanium silver white back coating includes: polyester resin, aluminum powder, zinc oxide, titanium dioxide, surfactant; tie layer Includes: propyne-butyl acrylate copolymer, polyethylene glycol, octyl p-methoxybenzoate. In this case, through the improvement of the coating structure and coating formula of the backboard of home appliances, not only does not affect the good bending performance of the backboard itself, but also makes the backboard have the characteristics of acid and alkali resistance, solvent resistance and aging resistance, and can be used in a humid environment for a long time. It can still maintain a high coating bonding strength under medium or large temperature differences. The coating has good adhesion to the substrate without losing luster. Phenomenon.

Description

technical field [0001] The invention relates to a backboard material for home appliances, in particular to a high-strength and high-lifespan titanium-silver white backboard for home appliances. Background technique [0002] With the rapid development of science and technology, the service life of home appliances has also been extended. Taking refrigerators as an example, the normal service life of the internal core component compressor is at least 10-15 years. Therefore, for a refrigerator, its The corresponding service life of all internal accessories should also be at least 10 years, otherwise the compressor, which is the main component, is not broken, but other small parts are damaged. When a home appliance enters the end of its life, its maintenance cost It is very high, and many people are unwilling to spend a large amount of money to repair an old home appliance. This makes many old home appliances discarded before they are completely scrapped, which invisibly causes a...

AI Technical Summary

Problems solved by technology

The backplane of the prior art can only last for 3-5 years. This is mainly not because the quality of the base steel plate of the backplane is not good enough, but because the bonding strength of the coating on the surface is not high enough. Under the influence of moisture, dust, corrosion, etc., the surface of the coating begins to crack or even fall off, and after the coating falls off, the steel plate inside is exposed and begins to rust. With the damage of the protective layer of the back plate, the core components inside the appliance also It begins to suffer from various erosions, and the service life of home appliances begins to decline. Therefore, the importance of the backplane is self-evident

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