Nylon Brush Strips in PCB Manufacturing Industry
Jul 11,2023
Nylon brush strip in the PCB manufacturing industry in the field of wide line manufacturing, such as line width / line spacing > 200um (8mil), copper foil thickness ≥ 35um is the ideal choice, and sometimes can be relaxed to > 150um (= 6mil). Due to its high resilience, the nylon brush will not damage the brush roll in case of PCB board warping or drilling broken drill bit, and it will not lead to brush roll instability and brush damage to the board and brush roll in case of operator's mistake such as forgetting to turn on the cooling water. The following Qianshan Asia-Pacific Brush Co., Ltd. gives you an introduction to the role of nylon brush in the PCB manufacturing industry.
1. After drilling and deburring process, when the burr is larger than 75um, the following combination is used: 180# silicon carbide and 240# silicon carbide.
2. After drilling and deburring process, when the burr is more than 50um, the following combination is used: 240# silicon carbide and 320# silicon carbide.
3. After drilling and deburring process, when the burr is less than 50um, use the following combination: 320#SiC and 320#SiC.
4. Pre-treatment of photosensitive film, use the following combination: 320#SiC and 500#SiC.
5. For PTH post-treatment, the following combinations are used: 320# carbonised silica and 320# carbonised silica.
6. Pre-treatment of green oil (anti-soldering) coating, using the following combination: 500# carbonised silicon and 500# carbonised silicon.
7. Pre-treatment of gold plate (including gold finger), using the following combination: 800# aluminium oxide and 1000# aluminium oxide.
8. Volcanic ash grinding machine, choose pure nylon spring brush 6pcs.
9. Flexure plate grinding, use the following combination: 600# Aluminium Oxide and 1000# Aluminium Oxide.
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Contact Information
Add: 3TH Floor, Block B,Cross Border E-commerce Industrial Park, No 88, YuanTan Avunue, Yuan Tan Town, QianShan City, AnQing City, AnHui Province, China,246314
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