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Metal anticorrosion coating and electric arc spraying process thereof

A metal anti-corrosion and coating technology, which is applied in the direction of metal material coating technology, anti-corrosion coatings, metal layered products, etc., can solve the problems that cannot meet the requirements, and achieve the effect of increasing adhesion and enhancing the effective anti-corrosion period

Active Publication Date: 2012-11-14
SHANGHAI JIANYE TECH ENG
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The arc spraying process commonly used in the prior art, the adhesion of the metal aluminum film can only reach 6-10MPa, which cannot meet the requirements

Method used

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  • Metal anticorrosion coating and electric arc spraying process thereof

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Embodiment Construction

[0016] Below in conjunction with specific embodiment, further illustrate the present invention.

[0017] see figure 1 , the metal anticorrosion coating of the present invention comprises zinc-aluminum alloy bottom layer 1, pure aluminum metal middle layer 2 and sealing paint surface layer 3, the thickness of zinc-aluminum alloy bottom layer 1 is 100um, the thickness of pure aluminum metal middle layer 2 is 80-100um, The thickness of the sealing paint surface layer 3 is 70-90um; wherein the sealing paint is a fluorocarbon topcoat.

[0018] In the zinc-aluminum alloy bottom layer in the present invention, the weight percentage of the zinc-aluminum component is controlled at 6-8:2-4. The fluorocarbon topcoat is prepared by mixing 1 part by weight of curing agent and 10-30 parts by weight of paint; the curing agent is HDI trimer isocyanurate; the weight percentage formula of the paint is: fluorocarbon Resin 40~70, mixed organic solvent 1~30, wax liquid 1~8, aluminum oxide 1~7, a...

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Abstract

The invention provides a metal anticorrosion coating and an electric arc spraying process thereof. The metal anticorrosion coating comprises a priming zinc-aluminum alloy layer with a thickness of 100 mu m, a middle pure aluminum metal layer with a thickness of 80 to 100 mu m and a seal coat surface layer with a thickness of 70 to 90 mu m, wherein seal coat is a fluoro-carbon top coat. The priming zinc-aluminum alloy layer and the middle pure aluminum metal layer are sprayed by using secondary atomization electric arc spraying for metals, and the seal coat surface layer is coated through spraying. An adhesive force between the metal anticorrosion coating provided by the invention and the surface of a steel structure substrate is up to more than 15 to 16 MPa, and the metal anticorrosion coating can be used in the field of heavy duty anticorrosion of large-scale steel structures.

Description

technical field [0001] The invention relates to anticorrosion technology, in particular to a metal anticorrosion coating and an arc spraying process thereof. Background technique [0002] Arc spray metal anti-corrosion technology for steel structure is the mainstream anti-corrosion technology currently used in buildings such as large steel structure bridges. The adhesion of metal aluminum film is one of the key factors that determine the anti-corrosion effect of the coating. The arc spraying process commonly used in the prior art, the adhesion of the metal aluminum film can only reach 6-10 MPa, which cannot meet the requirements. Contents of the invention [0003] The object of the present invention is to provide a metal anti-corrosion coating with greater adhesion and an arc spraying process thereof in order to overcome the above-mentioned deficiencies in the prior art. [0004] In order to achieve the above object, the present invention adopts the following technical so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B33/00B32B15/04C09D127/12C09D5/08C23C4/12C23C4/08C23C4/131
Inventor 宋会军宋逸李仁兰
Owner SHANGHAI JIANYE TECH ENG
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