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Metal surface oil and rust removal agent

A metal surface and rust remover technology, applied in the field of cleaning agents, can solve the problems of increasing costs, affecting the health of operators, and easily forming acid mist, etc., and achieves the effect of convenient use

Active Publication Date: 2013-01-16
盐城创咏新能源投资有限公司
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  • Abstract
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Problems solved by technology

However, the traditional acid treatment method also has obvious defects: that is, the generation of a large amount of hydrogen during the treatment process will cause hydrogen embrittlement of the steel and affect the strength of the steel itself; at the same time, it is easy to form acid mist, which will affect the health of the operator and corrode the surrounding area. equipment and environment
The existing derusting liquid generally has the disadvantages of poor effect and long derusting time
In addition, since the surface processing of metal materials such as iron and steel requires a treatment step of degreasing the surface, this step is usually before chemical derusting, which will increase the process steps of metal surface treatment and increase the cost. The complexity of the process increases the cost and causes more pollution

Method used

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Embodiment Construction

[0013] The components were prepared in the weight ratios shown in Table 1.

[0014] The weight proportion of table 1 embodiment 1~embodiment 3

[0015]

[0016]

[0017] Above-mentioned tensio-active agent adopts fatty alcohol polyoxyethylene ether sodium sulfate.

[0018] The above-mentioned polyvinyl alcohol has a molecular weight of 10,000 to 30,000.

[0019] The preparation method is:

[0020] S1: Add water, hydrochloric acid, phosphoric acid, oxalic acid, glacial acetic acid, citric acid, EDTA-Na 2 , Sodium ethylenediamine tetramethylene phosphonate, sodium polymaleate, and hydroxyethylidene diphosphoric acid, then slowly heat up to about 40°C, keep warm for 30-60 minutes, and let cool;

[0021] S2: Add polyvinyl alcohol and hexamethylenetetramine to the mixture obtained in S1 while stirring to fully dissolve it;

[0022] S3: Add ethylene oxide, glyoxal, magnesium stearate, glycerin, thiourea, ammonium molybdate, polyaspartic acid, and surfactant to the mixture ...

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Abstract

The invention provides a metal surface oil and rust removal agent, and belongs to the technical field of cleaning agents. The metal surface oil and rust removal agent comprises the following components by weight: 2 to 4 parts of hydrochloric acid, 5 to 10 parts of phosphoric acid, 3 to 6 parts of oxalic acid, 3 to 5 parts of glacial acetic acid, 2 to 4 parts of citric acid, 3 to 4 parts of polyvinyl alcohol, 1 to 2 parts of hexamethylene tetramine, 2 to 3 parts of ethylene oxide, 1 to 2 parts of glyoxal, 2 to 3 parts of magnesium stearate, 2 to 4 parts of glycerol, 2 to 4 parts of thiourea, 2 to 4 parts of ammonium molybdate, 1 to 2 parts of polyaspartic acid, 2 to 4 parts of EDTA-Na2, 1 to 2 parts of ethylene diamine tetra sodium, 1 to 3 parts of poly maleic acid sodium, 2 to 3 parts of HEDPA, 2 to 6 parts of surface active agent and 70 to 100 parts of water. The metal surface oil and rust removal agent is convenient to use, and removes light rust for about 2 minutes and heavy rust for 6 to 7 minutes, and the oil removal rate can reach more than 97%.

Description

technical field [0001] The invention provides a metal surface oil and rust remover, which belongs to the technical field of cleaning agents. Background technique [0002] Rust removal treatment is the basic process before steel surface painting. Rust removal methods can be roughly divided into three categories: mechanical, chemical and electrochemical methods, each of which has its own characteristics and is suitable for different occasions. Among them, the chemical method has a series of advantages such as good effect, high efficiency, simple process operation, and low cost, so it has been widely used in industry. However, the traditional acid treatment method also has obvious defects: that is, the generation of a large amount of hydrogen during the treatment process will cause hydrogen embrittlement of the steel and affect the strength of the steel itself; at the same time, it is easy to form acid mist, which will affect the health of the operator and corrode the surround...

Claims

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Application Information

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IPC IPC(8): C23G1/02
Inventor 肖伟荣
Owner 盐城创咏新能源投资有限公司
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