Stainless steel electrolytic etching technique

A technique of electrolytic etching, stainless steel

Inactive Publication Date: 2008-07-02
MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high hardness and high stability of stainless steel, it does not react or reacts...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] First prepare the stainless steel electrolytic etching solution according to the following formula:

[0020] Copper chloride 300g / L;

[0021] Hydrochloric acid 15g / L;

[0022] Thiourea 3g / L;

[0023] Sodium Potassium Tartrate 20g / L.

[0024] Then select a stainless steel workpiece sample for cleaning, degreasing and other surface cleaning, and then coat the photosensitive glue on its surface, and then carry out the exposure of the photosensitive glue according to the processing pattern, and then carry out developing and hardening treatment. In the electrolytic cell containing the stainless steel electrolytic etching solution prepared above, the workpiece is used as the anode, and the carbon rod is used as the cathode. The voltage is controlled at 2V, the temperature is controlled at 25°C, and the electrolysis time is 5 minutes. After the time is up, the sample is taken out and The remaining adhesive film on the surface is removed with an alkaline solution, and finall...

Embodiment 2

[0026] First prepare the stainless steel electrolytic etching solution according to the following formula:

[0027] Copper chloride 400g / L;

[0028] Hydrochloric acid 20g / L;

[0029] Thiourea 5g / L;

[0030] Sodium Potassium Tartrate 10g / L.

[0031] Then select a stainless steel workpiece sample for cleaning, degreasing and other surface cleaning, and then coat the photosensitive glue on its surface, and then carry out the exposure of the photosensitive glue according to the processing pattern, and then carry out developing and hardening treatment. In the electrolytic cell containing the stainless steel electrolytic etching solution prepared above, the workpiece is used as the anode, and the carbon rod is used as the cathode. The voltage is controlled at 3V, the temperature is controlled at 25°C, and the electrolysis time is 4 minutes. After the time is up, the sample is taken out and The remaining adhesive film on the surface is removed with an alkaline solution, and finall...

Embodiment 3

[0033] First prepare the stainless steel electrolytic etching solution according to the following formula:

[0034] Copper chloride 200g / L;

[0035] Hydrochloric acid 20g / L;

[0036] Thiourea 4g / L;

[0037] Sodium Potassium Tartrate 15g / L.

[0038] Then select a stainless steel workpiece sample for cleaning, degreasing and other surface cleaning, and then coat the photosensitive glue on its surface, and then carry out the exposure of the photosensitive glue according to the processing pattern, and then carry out developing and hardening treatment. In the electrolytic cell containing the stainless steel electrolytic etching solution prepared above, the workpiece is used as the anode, and the carbon rod is used as the cathode. The voltage is controlled at 3.5V, the temperature is controlled at 25°C, and the electrolysis time is 4 minutes. After the time is up, the sample is taken out and The remaining adhesive film on the surface is removed with an alkaline solution, and fina...

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Abstract

The invention provides a stainless steel electrolytic etching process, which mainly comprises the following steps of: (a) pre-treatment: cleaning the surface of a stainless steel workpiece by washing, deoiling, etc.; (b) application: applying a photosensitive adhesive on the surface of the workpiece and carrying out exposure, developing, hardening, etc.; (c) electrolytic etching: disposing the workpiece in an electrolysis tank containing a stainless steel electrolytic etching solution and electrifying for electrolysis, wherein the stainless steel electrolytic etching solution mainly contains copper chloride 200 to 400 g/L, hydrochloric acid 20 to 80 g/L, thiourea 1 to 5 g/L and potassium sodium tartrate 10 to 20 g/L; and (d) demolding: removing the residual adhesive film on the surface after electrolysis and cleaning to obtain the product. Accordingly, the stainless steel electrolytic etching process provided by the invention can achieve very high etching speed and higher accuracy under the low pressure condition, and has the advantages of simple process, low power consumption, high etching speed and wide application prospect.

Description

technical field [0001] The invention relates to a metal surface treatment process, in particular to a stainless steel surface treatment process. Background technique [0002] Stainless steel has the characteristics of high hardness, wear resistance, good stability, and strong impact resistance, and the products obtained by etching stainless steel have no edge stress of machining, and have been widely used in national defense, electronics, electrical appliances, etc., especially in Decorative signs and casings are more widely used. However, due to the high hardness and high stability of stainless steel, it does not react or reacts too slowly with strong acid and strong alkali, which limits the application of stainless steel etching products. Contents of the invention [0003] In view of the above problems, the main purpose of the present invention is to provide a stainless steel electrolytic etching solution, the solution process is simple, the power consumption is small, ...

Claims

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Application Information

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IPC IPC(8): C25F3/06C25F3/14
Inventor 李三旭
Owner MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY
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