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Highly-efficiently degreasing and rust-removal surface treating agent for metal

A high-efficiency technology for metal surface treatment, applied in the field of metal surface treatment agents, can solve problems such as easy pollution and adverse environmental impact, and achieve the effects of convenient operation, shortened cleaning time, and enhanced penetration.

Inactive Publication Date: 2013-03-06
王爱民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composition contains strong acid sulfuric acid, although the operation can be carried out at room temperature, it is easy to cause pollution and have adverse effects on the environment

Method used

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  • Highly-efficiently degreasing and rust-removal surface treating agent for metal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1, preferred:

[0018] A high-efficiency degreasing and rust-removing metal surface treatment agent, composed of the following raw materials in weight percentage: 30% phosphoric acid, 1% glucose, 1% 2,3-dihydroxysuccinic acid, 0.5% thiourea, fatty alcohol polyoxyethylene ether 1.5%, the balance is water.

[0019] Production method: first dilute phosphoric acid with water, then add other raw materials into the phosphoric acid solution according to the ratio, and finally add the remaining water and stir evenly to obtain the product of the present invention.

[0020] When using, immerse the workpiece in the metal surface treatment agent, soak for about 10 minutes at room temperature, and then take out the workpiece.

[0021] The treated workpiece can be rinsed directly with clean water, or treated by spraying or brushing the workpiece with a metal surface treatment agent.

Embodiment 2

[0023] High-efficiency degreasing and rust-removing metal surface treatment agent, the composition of raw materials in weight percent: phosphoric acid 20%, glucose 0.1%, 2,3-dihydroxysuccinic acid 0.1%, thiourea 0.1%, fatty alcohol polyoxyethylene ether 0.5%, surplus The amount is water.

[0024] Production method and usage method are identical with example 1.

Embodiment 3

[0026] High-efficiency degreasing and rust-removing metal surface treatment agent, the composition of raw materials in weight percent: phosphoric acid 40%, glucose 2%, 2,3-dihydroxysuccinic acid 1.5%, thiourea 1%, fatty alcohol polyoxyethylene ether 3%, the rest The amount is water.

[0027] Production method and usage method are identical with example 1.

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Abstract

The invention discloses a highly-efficiently degreasing and rust-removal surface treating agent for metal. The agent is composed of the following components by weight percent: 20 to 40 % of phosphoric acid, 0.1 to 2 % of glucose, 0.1 to 2 % of 2,3-dihydroxysuccinic acid, 0.1 to 1 % of thiourea, 0.5 to 2.5 % of fatty alcohol polyoxyethylene ether and the balance being water. The degreasing and rust-removal surface treating agent for the metal integrates functions of degreasing and rust removal, wherein the main component phosphoric acid plays a role of rust removal, the glucose plays a role of osmosis, the 2,3-dihydroxysuccinic acid plays a role of rust removal and complexation, the thiourea plays a role of corrosion inhibition, and the fatty alcohol polyoxyethylene ether plays a role of degreasing. The above components are combined to be used, good in compatibility and superposed in efficacy, can well degrease and remove rust; and the agent has advantages of quick rust-removal speed, simple operation, saved investment and low cost, and can prolong service life of workpieces.

Description

technical field [0001] The invention relates to a metal surface treatment agent, in particular to an efficient degreasing and derusting metal surface treatment agent at room temperature. Background technique [0002] In the traditional metal surface treatment process, degreasing (oil removal) and rust removal (scale removal) are often carried out separately. Usually, a strong alkaline cleaning agent is used as a degreasing agent, and a strong acid cleaning agent is used as a rust removing agent. The workpiece needs to be cleaned separately, and there are disadvantages such as cumbersome processing procedures, high energy consumption, heavy pollution (acid mist and waste liquid), and damage to the substrate (over-corrosion and crisp). [0003] After searching, the Chinese invention patent application with the notification number CN1055961A discloses a high-efficiency degreasing and rust removing agent at room temperature. 8 g / L, sodium dodecylbenzene sulfonate 4-40 g / L, sulf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/06
Inventor 史学斌
Owner 王爱民
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