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Bare steel rust layer conversion agent for terrestrial environment

A rust layer conversion agent and environmental technology, applied in the direction of metal material coating process, etc., to achieve the effect of excellent anti-rust liquid sag performance and excellent anti-corrosion performance

Inactive Publication Date: 2015-08-12
武汉钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a bare steel rust layer conversion agent for inland environment, which can effectively solve the problems of stabilization of bare steel rust layer and rust liquid hanging in inland environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A bare steel rust conversion agent for inland environment, its components by weight percentage are: sodium tripolyphosphate accounts for 0.5%, copper sulfate accounts for 3%, manganese nitrate accounts for 2%, nickel sulfate accounts for 2%, Phytic acid accounts for 0.1%, and water accounts for 92.4%.

Embodiment 2

[0014] A kind of bare steel rust conversion agent for inland environment, its components are by weight percentage, sodium tripolyphosphate accounts for 5%, copper sulfate accounts for 0.1%, manganese nitrate accounts for 0.1%, nickel sulfate accounts for 0.1%, Phytic acid accounts for 2%, and water accounts for 92.7%.

Embodiment 3

[0016] A bare steel rust conversion agent for inland environment, its components by weight percentage are, by weight percentage, sodium tripolyphosphate accounts for 1.5%, copper sulfate accounts for 2.5%, manganese nitrate accounts for 1.5%, nickel sulfate 1%, phytic acid 0.5%, water 93%.

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PUM

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Abstract

The invention discloses a bare steel rust layer conversion agent for a terrestrial environment. The rust layer conversion agent comprises the following components in percentage by weight: 0.5-5 percent of sodium tripolyphosphate, 0.1-3 percent of copper sulfate, 0.1-2 percent of manganous nitrate, 0.1-2 percent of nickel sulfate, 0.1-2 percent of phytic acid and the balance of water. The rust layer conversion agent disclosed by the invention has excellent rust liquid sagging resistance, and after the conversion agent is sprayed onto the surface of a weather-resistant bare steel sample of which oxide scale is removed, formation of a stable rust layer is promoted, and the rust layer has excellent anticorrosive performance and is suitable for coating of bare steel.

Description

technical field [0001] The invention belongs to the technical field of metal protection, and specifically refers to a bare steel rust layer conversion agent used in inland environments. Background technique [0002] Metal corrosion is a failure process of metals under the action of environmental corrosive media. It is a completely spontaneous and inevitable natural phenomenon, and it is the reverse process of metallurgical production. Atmospheric corrosion is an important cause of early failure and destruction of metal products, equipment, devices, and structural parts. The annual economic loss caused by atmospheric corrosion is extremely alarming. In the atmospheric natural environment of the inland environment (the atmosphere does not contain Cl — Such as acid corrosion ions), the formation of a stable and protective rust layer on bare steel is a gradual process, which takes a long time, at least 3 years, and some bare steel surfaces form a dense and stable rust layer fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/07
Inventor 黄先球郎丰军程鹏庞涛马颖何锐刘建容王辉李安平刘继雄
Owner 武汉钢铁有限公司
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