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Steel material acid-washing and phosphorization method

A technology of pickling phosphating and steel acid, which is applied in the coating process of metal materials, etc., can solve the problems of extensive pickling process, repeated use of materials, waste, etc. Corrosion, the effect of improving protection

Inactive Publication Date: 2014-04-30
南通瑞丽精密机电设备科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional pickling process is extensive, and the waste of acid solution is relatively serious, and the degree of corrosion and descaling on the industrial surface is not the same, which affects the performance of the later processed products, and seriously causes repeated work or waste of materials. , and produce a large amount of waste gas

Method used

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  • Steel material acid-washing and phosphorization method

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Embodiment 1

[0023] Embodiment 1: as figure 1 As shown, the invention discloses a steel pickling and phosphating method, comprising:

[0024] S1.1. Immerse the steel in a hydrochloric acid solution with a mass concentration of 9%, and soak for 5 minutes at 28°C.

[0025] S1.2. Immerse the steel material soaked in the hydrochloric acid solution in S1.1 in the hydrochloric acid solution with a mass concentration of 12%, and soak for 5 minutes at 28°C.

[0026] S1.3. Immerse the steel material soaked in the hydrochloric acid solution in S1.2 into the hydrochloric acid solution with a mass concentration of 15%, and soak for 5 minutes at 28°C.

[0027] S1.4. Immerse the steel material soaked in the hydrochloric acid solution in S1.3 into the hydrochloric acid solution with a mass concentration of 18%, and soak for 5 minutes at 28°C.

[0028] S1.5. Immerse the steel material soaked in the hydrochloric acid solution in S1.4 into the hydrochloric acid solution with a mass concentration of 22%, a...

Embodiment 2

[0039] Embodiment 2: the present invention discloses a method for pickling and phosphating steel, comprising:

[0040] S1.1. Immerse the steel in a hydrochloric acid solution with a mass concentration of 8%, and soak for 4 minutes at 30°C.

[0041] S1.2. Immerse the steel material immersed in the hydrochloric acid solution in S1.1 in the hydrochloric acid solution with a mass concentration of 11%, and soak for 4 minutes at 30°C.

[0042] S1.3. Immerse the steel material soaked in the hydrochloric acid solution in S1.2 into the hydrochloric acid solution with a mass concentration of 14%, and soak for 4 minutes at 30°C.

[0043] S1.4. Immerse the steel material soaked in the hydrochloric acid solution in S1.3 into the hydrochloric acid solution with a mass concentration of 17%, and soak for 4 minutes at 30°C.

[0044] S1.5. Immerse the steel material soaked in the hydrochloric acid solution in S1.4 into the hydrochloric acid solution with a mass concentration of 21%, and soak f...

Embodiment 3

[0052] Embodiment 3: the present invention discloses a method for pickling and phosphating steel, comprising:

[0053] S1.1. Immerse the steel in a hydrochloric acid solution with a mass concentration of 10%, and soak for 6 minutes at 15°C.

[0054] S1.2. Immerse the steel material soaked in the hydrochloric acid solution in S1.1 into the hydrochloric acid solution with a mass concentration of 13%, and soak for 6 minutes at 15°C.

[0055] S1.3. Immerse the steel material soaked in the hydrochloric acid solution in S1.2 into the hydrochloric acid solution with a mass concentration of 16%, and soak for 6 minutes at 15°C.

[0056]S1.4. Immerse the steel material soaked in the hydrochloric acid solution in S1.3 into the hydrochloric acid solution with a mass concentration of 20%, and soak for 6 minutes at 15°C.

[0057] S1.5. Immerse the steel material soaked in the hydrochloric acid solution in S1.4 into the hydrochloric acid solution with a mass concentration of 23%, and soak f...

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Abstract

The invention provides a steel material acid-washing and phosphorization method, wherein phosphorization film protection is provided for a matrix metal after acid washing so as to prevent the metal from re-corrosion, the method can be used for priming before painting so as to improve adhesion and corrosion resistance of the paint film layer, the friction reduction lubrication effect is provided during a metal cold processing process, and saponification is provided after phosphorization so as to substantially increase the protection performance of the phosphorization solution phosphorization film. According to the present invention, the multi-step quality and concentration increasing hydrochloric acid solution acidification treatments are provided so as to remove oil stains and rusts on the steel material surface, save acid solution consumption and provide the smoothness of the treated surface; and energy source saving is easily achieved with normal temperature soaking, and the single-step acid soaking time is shortened so as to achieve prevention of occurrence of hydrogen embrittlement on the basis of energy source saving.

Description

technical field [0001] The invention relates to the preceding process of steel wire rope and steel wire product technology, in particular to a steel wire rod and steel wire pickling and phosphating method. Background technique [0002] The pickling process is a common method for producing industrial surfaces in the industry. It is used to remove all kinds of dirt such as rust, oxide scale, and welding spots. [0003] The traditional pickling process is extensive, and the waste of acid solution is relatively serious, and the degree of corrosion and descaling on the industrial surface is not the same, which affects the performance of the later processed products, and seriously causes repeated work or waste of materials. , and produce a large amount of exhaust gas. Contents of the invention [0004] The purpose of the present invention is to provide a steel pickling and phosphating method, optimize the existing steel pickling process, and improve the utilization rate of raw ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/08C23C22/07C23C22/83
Inventor 张冬平
Owner 南通瑞丽精密机电设备科技有限公司
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