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

AI Technical Summary

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 solv

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
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Example Embodiment

[0018] Example 1

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

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

[0021] Step 2: Prepare 100g rust layer stabilizer solution, 45g water-soluble acrylic resin + 0.5g chromium sulfate + 2g Fe 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 dry for 20 minutes.

[0022] Step 3: Perform 72h weekly immersion corrosion test on the coated rust stabilizer sample and bare steel sample (the test medium is 0.01mol / L NaHSO 3 Solution, the experimental temperature is 45±2℃, the humidity is 70±5%, each cycle is 60min, i...

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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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