PCB brushing machine nylon brushing roller
PCB brushing machine nylon brushing roller
brushing roller, worked in the PCB brushing machine
usage: clear the burr after drilling the hole.
The brush rollers used in the PCB manufacturing process can be divided into two categories according to their functions, namely grinding brush rollers and cleaning brush rollers, while grinding brush rollers account for the vast majority. Cleaning brush rollers are only cleaned after finished products or after grinding. Used, the number is relatively small, so collectively referred to as grinding brush rolls. Grinding brush rollers are divided into three categories according to the materials used: nylon needle brush rollers, non-woven brush rollers and ceramic brush rollers, which have their own characteristics in use. Nylon needle brush roller is an early brush roller used in PCB manufacturing industry. According to different manufacturing processes, it is divided into five types: steel belt winding type, braided type, slotted embedded type, round hole embedded type and rubber plate value embedded type. Nylon needle brush rollers are divided into silicon carbide (SIC) abrasives, alumina (AO) abrasives and pure nylon according to the different abrasives contained in the nylon needle brush filaments. Whether it is silicon carbide or alumina abrasives, the particle size distribution ranges are: 60#, 80#, 100#, 120#, 150#, 180#, 240#, 320#, 400#, 500#, 600#, 800#, 1000#, 1200#, 1500#.
specification:
|
brushing silk length |
nylon silk diameter |
grid amount |
brushing density |
roughless | usage |
|
12 - 15 |
0.8------0.9 |
180# |
≥2500 |
≤2.5√ |
deburr |
|
12 - 15 |
0.8——0.9 |
240# |
≥2800 |
≤2.5√ |
deburr and polish |
|
15 - 20 |
0.6---- -0.8 |
320# |
≥3000 |
≤1.25√ |
clean and polish |
|
15-------- 20 |
0.5------0.7 |
500# |
≥3000 |
≤0.32√ |
clean and polish |
|
15---------20 |
0.4------0.5 |
800# |
≥3500 |
≤0.30√ |
solder polish |
|
15---------20 |
0.4------0.5 |
1000# |
≥3800 |
≤0.28√ |
solder polish |
|
20---------25 |
0.2------0.3 |
nylon without abrasive materials |
≥4200 |
|
slightly clean |
