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Weathering steel surface rust layer stabilization treating agent

A stabilized treatment agent and weather-resistant steel technology, which is applied in the coating process of metal materials, etc., to achieve the effects of simple implementation process, reduced pollution, and short drying time

Active Publication Date: 2015-12-16
SHOUGANG CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a stabilized treatment agent for the surface rust layer of weathering steel, which solves the technical problem of surface rust layer stabilization treatment encountered in the current application of weathering steel without coating

Method used

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  • Weathering steel surface rust layer stabilization treating agent
  • Weathering steel surface rust layer stabilization treating agent
  • Weathering steel surface rust layer stabilization treating agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The embodiment of the present invention is verified by performing periodic infiltration accelerated corrosion experiments after coating the rust layer stabilizer on the surface of the weathering steel, specifically including the following steps:

[0020] Step 1: Process the weathering steel into a sample of 40mm×60mm×4mm, degrease with acetone, clean with alcohol, and blow dry for later use.

[0021] Step 2: Prepare 100g rust stabilizer solution, 45g water-soluble acrylic resin+0.5g chromium sulfate+2gFe 2 o 3 +1gFe 3 o 4 +0.05g polyethylene glycol+0.25g defoamer+0.25g wetting agent. Brush the rust layer stabilizer on the surface of the weathering steel sample with a brush, and let it dry for 20 minutes.

[0022] Step 3: Carry out 72h weekly immersion corrosion experiment on coated rust layer stabilizer sample and bare steel sample (experimental medium is the NaHSO of 0.01mol / L 3 For the solution, the experimental temperature is 45±2°C, the humidity is 70±5%, and e...

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Abstract

The invention relates to a weathering steel surface rust layer stabilization treating agent, belonging to the technical field of ferrous material corrosion resistance. The weathering steel surface rust layer stabilization treating agent comprises a water-soluble acrylic resin solution, chromic sulfate, Fe2O3, Fe3O4, polyethyleneglycol, a defoaming agent, a wetting agent and water. The water solution is used instead of the organic volatile solvent, thereby maximally lowering the environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of anticorrosion of iron and steel materials, and in particular relates to a treatment agent for stabilizing the rust layer on the surface of weathering steel. Background technique [0002] Compared with carbon steel, weathering steel has very good atmospheric corrosion resistance because of its surface can form a dense protective rust layer. In actual engineering, the application of weathering steel can be divided into three categories: (1) exposed use; (2) painted use; (3) used after surface treatment. However, in the natural state, it takes about 10 years to produce a stable rust layer on the exposed weathering steel surface, and, in the initial stage of use, rust liquid often hangs upside down and scatter, polluting the environment. In some salt and S0 2 In areas where the content is too high, it is difficult to form a stable rust layer on the surface of weathering steel, and weathering steel must be p...

Claims

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Application Information

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IPC IPC(8): C23C22/05
CPCC23C22/05C23C2222/10
Inventor 高立军杨建炜曹建平生海许静刘立伟于东云郝玉林石云光赵一
Owner SHOUGANG CORPORATION
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