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Heavy duty anticorrosion coating used for coastal region steel structure, and construction technology thereof

A steel structure, heavy-duty anti-corrosion technology, applied in anti-corrosion coatings, coatings, epoxy resin coatings, etc., can solve problems such as high humidity, acid rain, easy fogging, etc., achieve simple structure, save maintenance costs, and improve project progress Effect

Inactive Publication Date: 2016-12-21
THE 4TH ENG CO LTD OF CHINA RAILWAY 16TH BUREAU GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The project is located in the northern coastal saline soil area. The climate is generally cold and humid. It is a marine climate, prone to fogging, high humidity, and frequent acid rain. It belongs to C 4 The environment with high corrosion level brings great challenges to the anticorrosion work of steel structures

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A heavy-duty anti-corrosion coating for steel structures in coastal areas according to an embodiment of the present invention, comprising epoxy zinc-rich primer, epoxy mica iron oxide intermediate paint and acrylic polyurethane topcoat, the epoxy zinc-rich primer The paint is coated on the surface of the steel structure, the epoxy mica iron oxide intermediate paint is coated on the epoxy zinc-rich primer, and the acrylic polyurethane topcoat is coated on the epoxy mica iron oxide intermediate paint.

[0018] Among them: epoxy zinc-rich primer includes the following components: 100 parts of curing agent, 120 parts of epoxy resin, 8 parts of organic bentonite, 715 parts of zinc powder, 7 parts of anti-settling agent, 30 parts of xylene and 20 parts of n-butanol .

[0019] The epoxy mica iron oxide intermediate paint includes the following components: 180 parts of epoxy resin, 8 parts of organic bentonite, 38 parts of titanium dioxide, 320 parts of mica iron oxide, 40 part...

Embodiment 2

[0022] A construction process for heavy-duty anti-corrosion coatings for steel structures in coastal areas, comprising the following steps:

[0023] (1) Spray the epoxy zinc-rich primer once on the steel surface, and the dry film thickness of the epoxy-rich primer is ≥75 μm;

[0024] (2) Spray an epoxy mica iron oxide intermediate paint on the surface of the epoxy zinc-rich primer, and the dry film thickness of the epoxy mica iron oxide intermediate paint is ≥75 μm;

[0025] (3) Spray two coats of acrylic polyurethane topcoat on the surface of epoxy mica iron oxide intermediate paint, and the dry film thickness of each acrylic polyurethane topcoat is ≥40μm.

[0026] In addition, the total thickness of the paint film of the epoxy zinc-rich primer, the epoxy mica iron oxide intermediate paint and the acrylic polyurethane topcoat is more than or equal to 230 μm.

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Abstract

The invention discloses a heavy duty anticorrosion coating used for coastal region steel structure, and a construction technology thereof. The coating comprises an epoxy zinc rich primer, an epoxy mica iron oxide intermediate paint and an acrylic polyurethane finish, the surface of the steel structure is coated with the epoxy zinc rich primer, the epoxy zinc rich primer is coated with the epoxy mica iron oxide intermediate paint, and the epoxy mica iron oxide intermediate paint is coated with the acrylic polyurethane finish. The coating has the advantages of simple structure, reasonable design, good use effect, optimization of traditional anticorrosion coating materials, solving the problem of coastal region steel structure anticorrosion, guaranteeing of the construction quality of the anticorrosion coating, engineering progress acceleration, and saving of the maintaining cost of the steel structure.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a heavy-duty anti-corrosion coating for steel structures in coastal areas and a construction process. Background technique [0002] The Huanghua Locomotive Overhaul Center Project of China Shenhua Railway Freight Vehicle Transportation Branch is located in Huanghua Port City, Cangzhou City, Hebei Province. The factory area is 169845m2 2 , 845m wide from east to west, 201m wide from north to south. The steel structure buildings mainly include truck bogie joint workshop, locomotive garage, and truck coal cleaning shed, among which the truck truck joint workshop has the largest area, with a total construction area of ​​75153m2 2 , the area of ​​the steel structure workshop occupies 65981m2 2 , the auxiliary room area is 9172m 2 . The project is located in the northern coastal saline soil area. The climate is generally cold and humid. It is a marine climate, prone to f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D175/14C09D5/10C09D7/12B05D7/14B05D7/00
CPCB05D7/14B05D7/58B05D2202/10B05D2503/00B05D2504/00C08K3/08C08K3/22C08K3/346C08K9/04C08K13/06C08K2003/0812C08K2003/0893C08K2003/2241C08K2003/2272C09D5/103C09D5/106C09D163/00C09D175/14C09D7/61C09D7/62B05D2420/01B05D2420/02B05D2420/03B05D2420/04
Inventor 赵相俊王海川闫肃谢光明王强柴纪中孙保华刘惠超曲维利
Owner THE 4TH ENG CO LTD OF CHINA RAILWAY 16TH BUREAU GRP CO LTD
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