Generally, LED steel mesh is of long specifications, such as 50*80. , 50*90, 50* 100, 50* 120, 50* 150, 50* 180, etc. Specific specifications can be determined according to the actual size of PCB.
Extended data:
Precautions:
1, steel wire mesh frame size requirements (550MM*650MM 370MM*470MM, etc. , mainly according to the structure and product specifications of the printing machine)
2, steel online label (product model, thickness, production date, etc. 4. Thickness of steel mesh (generally 0. 18mm-0.2mm for rubber scraping and 0. 1MM-0. 15MM for tin scraping).
3. Opening mode and size of steel mesh (generally, solder balls are V-shaped, U-shaped and concave, etc.). , depending on the type of each component. )
4. The service life of steel mesh should be specified and monitored by effective methods. The steel mesh that has exceeded its service life should be scrapped, and it is strictly forbidden to use the steel mesh beyond the time limit.
5. Each steel mesh should be numbered, and the products that each steel mesh can use should be clearly specified.
6, each piece of steel fabric should always ensure that there are spare parts, so that in case of abnormal situation, it can be replaced in time.
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