A steel environmental rust remover

A rust remover, an environmentally friendly technology, applied in the field of metal rust removal, can solve the problems of inability to dilute the rust stains, poor rust removal effect, high production cost, etc., achieve good rust removal effect, good rust removal effect, and low use cost Effect

Inactive Publication Date: 2014-11-19
赵理奎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to certain technical defects of this kind of neutral rust remover: the composition is complicated and the effect is repeated, which makes the production cost too high; cost too high

Method used

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  • A steel environmental rust remover
  • A steel environmental rust remover
  • A steel environmental rust remover

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031] The present invention also relates to a preparation method of rust remover, the method steps are: a. according to the weight percentage of each component given by the formula, under normal temperature conditions, citric acid is dissolved in water, and continuously stirred until fully Dissolve; b. Continue to add organic phosphonic acid and stir continuously until fully dissolved; c. Continue to add TX-10 or / and FMEE and continue to stir until fully dissolved and homogeneous, that is, the preparation is completed.

[0032] The rust remover of the present invention can be applied to rust removal and cleaning of different steel products, such as pipelines, plates, steel equipment and other complete steel products.

[0033] When using the rust remover of the present invention to remove rust, different cleaning methods such as soaking and wiping can be used according to the structure of the workpiece to be derusted and the degree of rust on the surface.

Embodiment 1

[0036] Embodiment 1 prepares the rust remover of different formulations

[0037] Prepare rust remover of the present invention according to following formula, and concrete formula sees the following table:

[0038]

[0039]According to the weight percentage of each component given in the above formula, under the condition of normal temperature, dissolve citric acid in water, stir continuously until fully dissolved; then continue to add hydroxyethylene diphosphonic acid (HEDP), continue to stir , until the hydroxyethylene diphosphonic acid (HEDP) is fully dissolved; then continue to add TX-10 or / and FMEE, and continue to stir until it is fully dissolved and appears homogeneous, that is, the preparation is completed.

Embodiment 2

[0040] The embodiment of embodiment 2 performance test

[0041] Carry out performance test according to " water-based metal cleaning test method ", take the technical scheme formula 1-5 of rust remover in embodiment 1 as experimental group, take the common rust remover in the prior art as control group, select three kinds of different The steel sheets with the degree of corrosion, respectively floating rust, moderately rusted and heavily corroded steel sheets are used as the experimental objects of this experiment, and the method of this experiment is the soaking method. The specific experimental data is shown in the table below:

[0042]

[0043]

[0044] It can be seen from the above table that the rust remover of the present invention can effectively remove the rust on the surface of steel products, and the floating rust can be removed in about half a minute, and the moderately corroded steel sheet can be easily removed in 3-5 minutes , the rust of heavily corroded s...

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PUM

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Abstract

The invention discloses a steel environmental rust remover. The rust remover comprises the following components by weight percentage: 10-50 % of organic phosphonic acid, 5-10 % of citric acid, and 3-5% of surfactant, with the balance being water. The surfactant is one of TX-10 and FMEE or a mixture of both. By adopting the technical solution of the invention, good rust removing effect can be achieved, the rust removing process is gentle and does not damage the surface of a steel article, and the use and manufacturing cost is low.

Description

technical field [0001] The invention belongs to the technical field of metal rust removal, and in particular relates to an environment-friendly rust remover for iron and steel. Background technique [0002] In the era of industrialization, steel products are widely used in various industries, but the oxidation and corrosion of steel will cause wear and tear on steel products, reducing the service life of steel products. Every year, incalculable losses are caused by the corrosion of steel products all over the world. Therefore, the derusting of steel products has become an indispensable process. [0003] At present, there are many derusting methods disclosed on the market. A large amount of acid mist will appear during the use of the traditional strong acid derusting solution. This kind of acid mist will affect the physical and mental health of the operators and corrode the surrounding equipment. Iron and steel products produce hydrogen embrittlement, which affects the stren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/08
Inventor 赵理奎
Owner 赵理奎
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