Net Drying
Washing the net: Use grinder paste to remove grease (for new nets) and ghost paste to remove graphics (for old nets). Remove pulp powder from the net pulp and blue oil, wash debris with anti-white water, rinse the net with detergent, and finally use a high-pressure water gun to rinse the net. Finish by cleaning it with pure water.
Grilling net: Set the oven temperature to less than 48 degrees Celsius.
Premium film: Clean the net with pure water again, increase the size of the project film by 20%, and select the water film. Use a triangular ruler to press one end of the water film onto the net, and slowly scrape it up with the ruler. Then, use a squeegee to gently press and wipe off the excess water.
Portion drying
Premium film: Clean the net with pure water again, increase the size of the project film by 20%, and select the water film. Use a triangular ruler to press one end of the water film onto the net, and slowly scrape it up with the ruler. Then, use a squeegee to gently press and wipe off the excess water.
Use mesh pulp: Dry the mesh plate, then size it. Use a scraping box to transfer the mesh pulp onto the net. Apply green oil three times, base oil once every 10 minutes or more, surface oil second, and blue gum first. Tear off the film with 50K water film, apply 20 mesh pulp, scrape three times each time (using an automatic sizing machine), and dry after sizing.
The selection of mesh yarn is as follows: general circuit, green oil, base oil, and surface oil use 120T, 100T, 110T mesh; carbon oil uses 51T; blue glue uses 24T for photosensitive circuits; and thermosetting green oil uses 77T.
The film selection line uses 18K water film (no mesh pulp is used due to unevenness), green oil, base oil, and surface oil use mesh slurry, and carbon oil uses 50K water film.
Paste the required engineering graphic film on the selected position of the screen, place it on the exploding machine for exploding, and select the appropriate timing for each type of oil.
Rinse the net with pressurized water and dry it.
Seal the outer edge of the graphic film with blue oil (sealing paste) and dry it.
Check and repair the net, noting the completion date and corresponding number, and record the information for future reference.
This is a general operation guide. It is important to adapt the process to the specific requirements of each PCB project in order to achieve the best results and continuously improve product quality.
Washing the net: Use grinder paste to remove grease (for new nets) and ghost paste to remove graphics (for old nets). Remove pulp powder from the net pulp and blue oil, wash debris with anti-white water, rinse the net with detergent, and finally use a high-pressure water gun to rinse the net. Finish by cleaning it with pure water.
Grilling net: Set the oven temperature to less than 48 degrees Celsius.
Premium film: Clean the net with pure water again, increase the size of the project film by 20%, and select the water film. Use a triangular ruler to press one end of the water film onto the net, and slowly scrape it up with the ruler. Then, use a squeegee to gently press and wipe off the excess water.
Portion drying
Premium film: Clean the net with pure water again, increase the size of the project film by 20%, and select the water film. Use a triangular ruler to press one end of the water film onto the net, and slowly scrape it up with the ruler. Then, use a squeegee to gently press and wipe off the excess water.
Use mesh pulp: Dry the mesh plate, then size it. Use a scraping box to transfer the mesh pulp onto the net. Apply green oil three times, base oil once every 10 minutes or more, surface oil second, and blue gum first. Tear off the film with 50K water film, apply 20 mesh pulp, scrape three times each time (using an automatic sizing machine), and dry after sizing.
The selection of mesh yarn is as follows: general circuit, green oil, base oil, and surface oil use 120T, 100T, 110T mesh; carbon oil uses 51T; blue glue uses 24T for photosensitive circuits; and thermosetting green oil uses 77T.
The film selection line uses 18K water film (no mesh pulp is used due to unevenness), green oil, base oil, and surface oil use mesh slurry, and carbon oil uses 50K water film.
Paste the required engineering graphic film on the selected position of the screen, place it on the exploding machine for exploding, and select the appropriate timing for each type of oil.
Rinse the net with pressurized water and dry it.
Seal the outer edge of the graphic film with blue oil (sealing paste) and dry it.
Check and repair the net, noting the completion date and corresponding number, and record the information for future reference.
This is a general operation guide. It is important to adapt the process to the specific requirements of each PCB project in order to achieve the best results and continuously improve product quality.
