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Mould corrosion prevention method

A mold and anti-rust paint technology, applied in the direction of pretreatment surface, coating, surface coating liquid device, etc., can solve the problem of unsatisfactory effect and achieve the effect of easy operation, simple method and low cost

Inactive Publication Date: 2015-04-08
滁州市艾德模具设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Anodic protection of metal refers to plating a metal material with a lower electrode potential on a certain metal surface. In a corrosive environment, the metal material with a lower potential is first corroded to play a protective role, such as: steel surface plating Metal zinc; metal cathodic protection refers to plating a corrosion-resistant metal material with high potential on the metal surface, completely covering the low-potential metal in a corrosive environment, and isolating the low-potential metal from corrosive substances, such as : copper plating on steel surface; but for the anticorrosion treatment of mould, the method effect in the prior art is not satisfactory, therefore, urgently needs a kind of new technical scheme to solve above-mentioned technical problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] A mold anticorrosion method, the method comprising the following steps, 1) pretreating the surface of the mold; 2) spraying the mold with epoxy asphalt antirust paint, the thickness of the coating is 0.8mm; in step 1, The pretreatment of the mold surface is as follows: remove moisture, oil, dirt, pollutants, rust and scale on the surface of the substrate, and use manual derusting or sandblasting or chemical derusting; during manual derusting, the quality standard should be Reach St3 level; when sandblasting or chemical derusting, the quality standard should reach Sa2.5 level, surface roughness is 40μm; the treated mold surface should be coated with primer coating within 4 hours.

Embodiment 2

[0012] A mold anticorrosion method, the method comprising the following steps: 1) pretreating the surface of the mold; 2) spraying the mold with thick build aluminum powder epoxy asphalt antirust paint, the thickness of the coating is 0.9mm ; In step 1, the pretreatment of the mold surface is as follows: remove moisture, oil, dirt, pollutants, rust and scale on the surface of the substrate, and use manual derusting or sandblasting or chemical derusting; manual derusting When sandblasting or chemical derusting, the quality standard should reach Sa2.5 level, with a surface roughness of 45 μm; the treated mold surface should be coated with primer within 4 hours.

Embodiment 3

[0014] A mold anticorrosion method, the method comprising the following steps, 1) pretreating the surface of the mold; 2) spraying the mold with cyclopolyamide epoxy resin, the thickness of the coating is 0.95mm; in step 1, The pretreatment of the mold surface is as follows: remove moisture, oil, dirt, pollutants, rust and scale on the surface of the substrate, and use manual derusting or sandblasting or chemical derusting; during manual derusting, the quality standard should be Reach St3 level; when sand blasting or chemical derusting, the quality standard should reach Sa2.5 level, surface roughness is 50μm; the treated mold surface should be coated with primer coating within 4 hours.

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PUM

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Abstract

The invention relates to a mould corrosion prevention method. The mould corrosion prevention method is characterized by including the following steps: (1) subjecting the surface of a mould to pretreatment; (2) subjecting the mould to spray coating with epoxy-tar anti-corrosive paint, thick paste type aluminium-powder epoxy-tar anti-corrosive paint or polyamide epoxy resin, wherein the thickness of the coating is 0.8-0.95mm. The mould corrosion prevention method has the advantages that the whole method is simple and easy to operate; cost is low, corrosion prevention effect is good, and the treated mould can be used for a long time even if in the humid environment or acid-base environment.

Description

technical field [0001] The invention relates to an anticorrosion method, in particular to a mold anticorrosion method, and belongs to the technical field of mechanical anticorrosion treatment. Background technique [0002] With the development of the economy and the progress of the society, the industry is developing more and more rapidly. In industrial production, the anti-corrosion of metals is also paid more and more attention. The anti-corrosion process of metals is currently divided into three categories: anode protection of metals; cathodic protection of metals. protection; and non-metallic paint protection for metal surfaces. Anodic protection of metal refers to plating a metal material with a lower electrode potential on a certain metal surface. In a corrosive environment, the metal material with a lower potential is first corroded to play a protective role, such as: steel surface plating Metal zinc; metal cathodic protection refers to plating a corrosion-resistant ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D5/00B05D7/24B05D3/00
Inventor 朱卫华
Owner 滁州市艾德模具设备有限公司
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