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Wear-resistant home appliance color-coated steel plate and preparation method thereof

A color-coated steel plate, anti-wear technology, applied in the field of steel plate manufacturing, can solve problems such as limited wear resistance

Inactive Publication Date: 2021-08-31
常熟科弘材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This scheme simply relies on increasing the cross-linking degree of the coating to try to improve the surface hardness of the coating film and the anti-wear performance of the paper tape, and its anti-wear ability in practical applications is very limited.

Method used

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  • Wear-resistant home appliance color-coated steel plate and preparation method thereof
  • Wear-resistant home appliance color-coated steel plate and preparation method thereof
  • Wear-resistant home appliance color-coated steel plate and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0030] Preferably, see further image 3 As shown, a method for preparing the above-mentioned anti-wear home appliance color-coated steel plate 10 includes the following steps:

[0031] A10), the steel plate 11 is degreased and chemically pretreated, and a film layer attached by a coating is formed on the surface of the steel plate 11, and the film layer adopts phosphate or phosphate composite oxide;

[0032] A20), the primer is coated on the surface of the passivation layer (not shown) of the steel plate by a roll coating process, and the primer coating 12 is obtained through heating and baking forming;

[0033] A30), the wear-resistant paint is coated on the primer coating 12 by a roll coating process, and the middle coating wear-resistant coating 13a is obtained through heating and baking forming;

[0034]A40), the top coat is coated on the middle coating wear-resistant coating 13a by a roll coating process, and the top coating 13b is obtained through heating and baking for...

Embodiment 1

[0039] Embodiment 1: the remaining technical schemes of this embodiment 1 are the same as the above implementation technical schemes, wherein the wear-resistant paint includes 35wt% epoxy resin, 20wt% first saturated carboxyl group modified by nano-silica powder wear-resisting Polyester resin (acid value 40-45mgKOH / g), 25wt% of the second saturated carboxyl polyester resin (acid value 65-72mgKOH / g) through nano-silica powder wear-resisting modification, 3wt% Isocyanate and 17 wt% solvent.

Embodiment 2

[0040] Embodiment 2: all the other technical solutions of this embodiment 2 are the same as the above implementation technical solutions, wherein the wear-resistant paint comprises 35wt% epoxy resin, 20wt% the first saturated carboxyl group modified by nano-silica powder wear-resisting Polyester resin (acid value 40-45mgKOH / g), 15wt% of the second saturated carboxyl polyester resin (acid value 65-72mgKOH / g) through nano-silica powder wear-resisting modification, 3wt% Isocyanate, 2wt% glass powder and 25wt% solvent.

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Abstract

The invention discloses a wear-resistant home appliance color-coated steel plate and a preparation method thereof. The wear-resistant home appliance color-coated steel plate comprises a steel plate of which the surface is passivated, and a base-coat coating, a middle-coat wear-resistant coating and a top-coat coating are respectively arranged on the surface of a passivation layer of the steel plate; and the middle-coat wear-resistant coating is located between the base-coat coating and the top-coat coating, wear-resistant paint raw materials of the middle-coat wear-resistant coating comprise not less than 35 wt% of carboxyl polyester resin which is subjected to wear-resistant modification by nano silicon dioxide powder, not less than 15 wt% of epoxy resin and not less than 10 wt% of a solvent, and the epoxy resin and the carboxyl polyester resin can be subjected to a cross-linking curing reaction, and are also subjected to baking, curing and forming; and the wear-resistant home appliance color-coated steel plate has excellent wear resistance and is very suitable for being used as a home appliance color-coated steel plate.

Description

technical field [0001] The invention relates to the field of steel plate manufacturing, in particular to an anti-wear home appliance color-coated steel plate, and also relates to a preparation method of the anti-wear home appliance color-coated steel plate. Background technique [0002] The traditional color-coated steel plate usually refers to the coating on the steel plate after surface passivation treatment (mainly including galvanized steel plate or aluminum-zinc coated steel plate) on the continuous production line of the steel plate, and then heat-cured and formed. According to the use classification of color-coated steel sheets, it mainly includes color-coated steel sheets for building materials and color-coated steel sheets for home appliances. Among them, color-coated steel sheets for home appliances have higher requirements for their surface effects. Color-coated steel sheets for home appliances usually include a steel plate base layer, a passivation layer, a prime...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D163/00C09D7/61C09D7/63C09D5/08
CPCC09D167/00C09D7/61C09D7/63C09D5/08C09D7/67C08K2201/011
Inventor 冯健朱艳刘二伟
Owner 常熟科弘材料科技有限公司
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