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Method for preparing metal surface anticorrosive paint

A technology for anti-corrosion coatings and metal surfaces, applied in anti-corrosion coatings, devices for coating liquid on surfaces, epoxy resin coatings, etc. The effect of simple covering process

Inactive Publication Date: 2008-02-06
TIANJIN ZHENDONG PAINTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, for the anti-erosion and anti-corrosion coatings on the surface of aluminum alloy, it is usually to improve the anti-corrosion performance of the coating, so it is impossible to take into account the anti-erosion properties of the coating.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0006] Example 1: 20 grams of aluminum powder and 980 grams of H04-1 green epoxy enamel are mixed with 200 grams of H-2 curing agent and stirred evenly to form the primer, the surface layer is 501-3 polyurethane varnish, and the organic solution is used for the aluminum alloy test piece Remove oil, blow sand with 200 mesh corundum powder, spray the bottom layer evenly on the surface, put it into a circulating hot air furnace, heat it to 100°C, keep it warm for 2 hours, take it out and cool it in air; then spray a layer of bottom layer paint, solidify and cool it in the same way and then spray it Layer one layer, put it into a circulating hot air furnace, heat it to 150°C, and keep it warm for 1 hour.

Embodiment 2

[0007] Embodiment 2: 80 grams of zinc-aluminum flakes and 920 grams of HO4-1 green epoxy enamel are mixed with 167 grams of H-2 curing agent and stirred evenly to be the primer coating, and the surface layer is 501-3 polyurethane varnish, degreased with an organic solution, Blow sand with 200 mesh corundum powder, spray the bottom layer evenly on the surface, put it into a circulating hot air furnace, heat it to 100°C, keep it warm for 2 hours, take it out and cool it in air; then spray a layer of primer paint, solidify and cool it in the same way, and then spray a layer layer , placed in a circulating hot air furnace, heated to 150°C, and kept warm for 1 hour.

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PUM

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Abstract

The present invention relates to a preparation method of an anticorrosion coating for metal surface. The preparation method is as follows: 20g of aluminum powder and 980g of H04-1green epoxy resin enamel, are mixed, added with 200g of H-2 curing agent, with uniform stirring, thus rough coating is obtained; 501-3 polyurethane lacquer is used as surface coating. An aluminum alloy test piece is cleaned by organic solution, is blew sand with 200-mesh corundum, painted on surface with rough coating uniformly, delivered into a recirculating hot blast stove, heated up to 100 DEG C, with the temperature kept unchanged for two hours, taken out and to be cooled; and then solidified and cooled and paint another surface coating in the same way, andput in the recirculating hot blast stove, heated up to 150 DEG C, with the the temperature kept unchanged for one hour. The present invention has the advantages of being scouring-durable and erosion-proof with a simple technique; the coating has a superior anticorrosion performance, a good flexibility, a good scouring durability and a good cohesion with the metal base.

Description

technical field [0001] The invention relates to a preparation method of an anticorrosion coating for metal surfaces. Background technique [0002] At present, for the erosion-resistant and anti-corrosion coatings on the surface of aluminum alloys, the anti-corrosion performance of the coatings is usually improved, and the erosion resistance of the coatings cannot be taken into account. Contents of the invention [0003] The object of the present invention is to overcome above-mentioned defective, a kind of preparation method of metal surface anticorrosion paint is provided. [0004] The technical solution of the present invention is: a preparation method of metal surface anti-corrosion coating, characterized in that: the inner layer of the metal surface coating is made of H04-1 green epoxy enamel and ultra-fine zinc-aluminum powder or ultra-fine aluminum powder, composed of 501 -3 The polyurethane varnish is a double-layer structure composed of the surface layer; the bott...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D175/04C09D5/08B05D7/14B05D1/36
Inventor 张云波
Owner TIANJIN ZHENDONG PAINTS CO LTD