PCB manufacturing process used in the polishing brush roller can be divided

into two categories according to the functions, namely abrasive brush roller and cleaning brush roller, brush roller accounted for the vast majority of the grinding, cleaning brush roller cleaning or only in the final product after grinding Finally cleaning used, the  Abrasive paper number is relatively small, so collectively referred to as grinding brush roller.
Abrasive brush roll by the use of materials are divided into: nylon brush roller pin, non-woven and ceramic brush roller brush roll three categories, they use their own characteristics.
Nylon brush roller pin PCB manufacturing industry as an early adopter of the brush roller, has a long history. Press the manufacturing process is divided into different strip winding, weaving style, slotting embedded, embedded and sheet hole implantable five kinds. The company produces nylon brush uses a steel needle winding, weaving style and hole embedded three kinds of manufacturing processes. These three processes to ensure nylon filament yarn needle density can be controlled needle nylon filament uniformity, thus sandpaper  fully meet the different needs of various customers.
Nylon brush needle roller of the abrasive filament nylon needle is divided into different carbide (SIC) abrasive type, aluminum oxide (AO) and pure Nylon abrasive type, whether or aluminum carbide Gui (AO) abrasive particle size distribution are both: 60 #, 80 #, 100 #, 120 #, 150 #, 180 #, 240 #, 320 #, 400 #, 500 #, 600 #, 800 #, 1000 #, 1200 #, 1500 #.
The nylon brush roller pin characterized by long life, grinding effect is moderate, especially for line / space (L / S) ≥ 200um (= 8mil), copper foil thickness "= 35um under the surface of the PCB manufacturing process treatment. PCB manufacturing industry in the early plays an important role. But with the recent PCB users of line / space (L / S) and more sophisticated requirements, unique nylon brush needle scratches more serious impact on the lines which can easily result in a larger filaments bridge, broken lines and other defects on the apparent out.
Contain abrasive nylon brush roller pin as pure volcanic ash or pumice brush roller paint roller, brush filaments of nylon needle selection and equipment improvements, completely for finer line as 75um-150um (3-6mil) width of the PCB grinding.
Non-woven brush roll is optional PCB manufacturing late for a class brush roller, according to the manufacturing process is divided into different radial (Flap type), round sheet (Disk type) and overall sponge (Sponge type) categories. GSH brand non-woven brush roll is used in the first two production structure, ie, radial (Flap type) and pellet (Disk type), due to material, density and mix of different treatment processes, and therefore can meet the different needs of various customers.
Non-woven non-woven brush roll press is divided into different abrasive-containing silicon carbide (SIC) category abrasive, aluminum oxide (AO) and pure non-woven abrasive class category. Whether silicon carbide (SIC) or aluminum oxide (AO) are abrasive particle size distribution is: 60 #, 80 #, 100 #, 120 #, 150 #, 180 #, 240 #, 320 #, 400 #, 500 # , 600 #, 800 #, 1000 #, 1200 #, 1500 #.
Non-woven abrasive brush roll characterized fine, handling uniform surface finish roughness, which can significantly improve the green light sensitive film and the film adhesion, especially for line / space (L / S) ≤ 100um (= 4mil ), ≤ 35um copper foil thickness of the PCB manufacturing. After the drilling burr (burr) removal, photosensitive membrane pre-treatment and green oil (oxidation) pre-processing areas of its superior performance. Especially green oil (oxidation) pre-treatment process, it has proven to be introduced to improve the yield or reduce short circuit and electrical testing NG10% -15% more, on this point remains to be concerned about the problem the cut off wheel  industry friends to go further authentication.
Non-woven brush roll drawback is that life is short, so grinding costs are high, but if calculated to improve product yield this point, I believe the industry friends will own conclusions!
PCB manufacturing ceramic brush roller into something more recent years, it is particularly suitable for ink removal plug hole and after PTH treatment, but because the cost is too high coupled with the recent non-woven brush roll has developed a similar function brush roller: If Dedicated remove plug hole ink brush roller and brush roller after PTH treatment. The market share of the ceramic brush roller brush roll to be the kind of cost will be further reduced after further expansion.