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Lubricating metal surface treatment agent

A metal surface treatment, stirring and dispersing technology, applied in the direction of metal material coating process, etc., can solve the problems of local corrosion, corrosion current density increase, etc., and achieve good anti-rust lubricity and good compatibility

Inactive Publication Date: 2015-08-05
BENGBU TIMES ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the amount is insufficient, a complete oxide film cannot be formed, and the corrosion current density increases on the small metal surface that is not covered, which is likely to cause severe local corrosion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A lubricating type metal surface treatment agent, it is made up of the raw material of following weight part:

[0018] Linseed oil 0.3, palmitic acid 2, polyethylene oxide 0.02, polyvinyl alcohol 15, sericin 6, boric acid 0.07, yttrium nitrate hexahydrate 0.05, silane coupling agent KH-550 0.4, sodium molybdate 0.4, water 200, Tea saponin 0.9, sodium thiosulfate 0.14.

[0019] A preparation method of a lubricating metal surface treatment agent, comprising the following steps:

[0020] (1) Mix tea saponin and sericin, stir evenly, add 40% of the above water weight, stir evenly, add silane coupling agent KH-550, yttrium nitrate hexahydrate, stir and disperse at 1000 rpm for 20 minutes, add 90% of the above-mentioned polyvinyl alcohol weight, boric acid, 70 DEG C, insulation and stirring for 50 minutes, to get sericin emulsion;

[0021] (2) Take sodium molybdate, add 30 times of water, stir evenly, add linseed oil, keep stirring at 70°C for 20 minutes to obtain lubricati...

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PUM

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Abstract

The invention discloses a lubricating metal surface treatment agent which is composed of the following raw materials, by weight, 0.2-0.3 part of linseed oil, 1-2 parts of palmitic acid, 0.01-0.02 part of polyethylene oxide, 10-15 parts of polyvinyl alcohol, 4-6 parts of sericin, 0.07-0.1 part of boric acid, 0.05-0.1 part of yttrium nitrate hexahydrate, 0.4-1 part of a silane coupling agent KH-550, 0.4-1 part of sodium molybdate, 160-200 parts of water, 0.9-1 part of tea saponin and 0.1-0.14 part of sodium hyposulfite. According to the invention, water-soluble polymer polyvinyl alcohol and sericin are mixed, and then silanization treatment is carried out. After hydrolysis of silane, an adsorption type film can be formed on metal surface so as to isolate water molecules and oxygen molecules in the environment, thus having a protective effect. Through boric acid modification, tensile strength and heat stability of blend films can be enhanced. The added rare earth metal ions and OH- generated by oxygen absorption corrosion of the metal substrate surface undergo complexing to generate insoluble complexes.

Description

technical field [0001] The invention mainly relates to the field of metal surface treatment agents, in particular to a lubricating metal surface treatment agent. Background technique [0002] Metal surface treatment agent refers to the general term for various chemical agents for metal surface treatment. Metal surface treatment includes degreasing, rust removal, phosphating, antirust and other substrate pretreatments, which are prepared for metal coating technology and metal protection technology. The quality of substrate pretreatment has a great influence on subsequent coating preparation and metal use. The water-soluble rust inhibitor can be dissolved in water to form an aqueous solution, and the metal can prevent corrosion and rust after being treated with this aqueous solution. Their antirust effect can be divided into three categories. [0003] ①The metal and the antirust agent form an insoluble and dense oxide film, thus preventing the anodic dissolution of the m...

Claims

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Application Information

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IPC IPC(8): C23C22/40
Inventor 朱兴堂朱亮亮陈军彦
Owner BENGBU TIMES ELECTRONICS
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