Stainless steel bipolar plate etching processor

Stainless Steel Bipolar Plate etching process is a delicate manufacturing process that involves a number of fields such as materials science, mechanical engineering, and electronic engineering. 

Stainless steel bipolar plates are widely used in various electronic devices such as fuel cells, solar cells and semiconductor manufacturing equipment due to their high corrosion resistance, 

high electrical conductivity and high thermal conductivity.

I. Process flow

Stainless steel bipolar plate etching process includes the following steps:

1. Material preparation: select the appropriate stainless steel plate, its thickness, material and surface quality need to meet the requirements.

2. Cleaning and decontamination: put the stainless steel plate into the cleaning machine, with solvent and ultrasonic cleaning machine to clean the surface oil and impurities.

3. Pattern design: design the etching pattern according to the requirements, can use photolithography, screen printing or laser etching and so on.

4. Coating: Photoresist will be coated on the surface of the stainless steel plate to protect the part that does not need to be etched.

5. Exposure: the photoresist coated stainless steel plate into the exposure machine, through ultraviolet radiation to make the photoresist curing.

6. Developing: put the exposed stainless steel plate into the developing solution, the uncured photoresist is dissolved, revealing the part that needs to be etched.

7. Etching: the developed stainless steel plate into the etching machine, using chemical or physical methods for etching.

8. Degumming: put the etched stainless steel plate into the degumming solution to remove the residual photoresist.

9. Cleaning and decontamination: again with solvents and ultrasonic cleaning machine to clean the surface oil and impurities.

10. Inspection: quality inspection of the etched stainless steel bipolar plate, including pattern accuracy, surface roughness, corrosion resistance and other indicators.

II, equipment

Stainless steel bipolar plate etching process requires the use of the following equipment:

1. Cleaning machine: used to clean the stainless steel plate surface oil and impurities.

2. Photolithography machine: for coating photoresist and its exposure and development.

3. Etching machine: used for chemical or physical etching of stainless steel sheet.

4. Degumming machine: used to remove the residual photoresist.

5. Ultrasonic cleaning machine: used to clean the surface oil and impurities again.

6. Quality detector: used to detect the quality of stainless steel bipolar plate after etching.

III, the factors affecting

The quality of stainless steel bipolar plate etching process is affected by a variety of factors, including the following important points:

1. Process parameters: process parameters such as exposure time, developer concentration, etching rate, etc. on the etching quality and efficiency has an important impact.

2. Equipment precision: equipment precision such as exposure machine focus position, etching machine tool wear and other important impact on the etching quality and accuracy.

3. Material quality: material quality such as stainless steel plate thickness, material and surface quality has an important impact on the etching quality and efficiency.