|
Thank you very much for choosing our GSH BRAND BUFFS, in order to bring all the advantages of GSH BRAND BUFFS into full play, the following using instructions were made for your references:.
1．The features of GSH brand buffs are: it has a fine and uniform grinding effect, meanwhile the impulse force to the circuit is smaller than nylon bristle brush rollers, therefore GSH brand buffs are particularly suitable for the processing procedures of welding protection(WF), especially when the interval between lines is ≤3mil/3mil, the application of it is to dramatically reduce the defect (on one hand is to reduce the tiny brass wires of nylon bristle brush rollers, on the other hand is to reduce the broken of circuits) of OPEN/SHORT. At the same time, it can obvious enhance the adhesive force (water break time amounts to more than 30 seconds, the surface roughness is uniform/ proper in size) of soldering mask.
Propositional Machines: Japan ISHIIHYOKI ICN710 TaiWan Kingsoul SCBA 4.765L
HongKong USE SCRUBBEX SHDA Korea TAESUNG TSG104LN
2．Compared with the nylon bristle brush rollers, the GSH Brand(DF) out layer used buffs have the features of surface uniformity, surface roughness and higher cutting power, which enables this kind of special purpose buffs can easily prolongs the water break time of copper surface to more than 30 seconds. And the surface roughness Rz is controlled between 1.5-3.0um, thus at least 60% of cementation problems are settled, and the problems of elliptic hole and copper-less hole that occurred during the use of nylon bristle brush rollers are settled too.
3．Compared with the original nylon bristle brush rollers, the suitable surface hardness, surface roughness and higher cutting power of GSH brand deburring buffs solve the following problems: elliptic holes, raising of copper sheet around the hole, varus of burr, unclean deburring, copper-less around the hole of PTH. Of course, other matching equipment should be considered when GSH brand buffs adopted in this process, such as high pressure water wash and so on, otherwise there will be serious plugging hole problems.
4．The cutting power of GSH brand brush rollers is bigger than that of nylon bristle brush rollers, therefore it requires the Scrubbing Machine has copper powder collecting device of other similar filtering device, at the same time, the water washing system of Scrubbing Machine must be powerful(the water washing pressure should be more than 20kg), otherwise the refluent copper powder or residual copper powder will cause short circuit or potential short circuit/inferior appearance and plugging hole as well. Please refer to the brochure << The Technical Function of GSH Copper Powder Collecting And Its Current Economic And Environmental Protection Efficiency>> which is produced by our company on the function of copper powder collecting machine.
5．Please select a Scrubbing Machine that has a strong bracket, otherwise the vibration of machine will cause bad grinding effect, since the surface hardness of GSH brand buffs is obvious bigger than that of nylon bristle brush rollers, dynamic vibration will be occurred when GSH brand buffs works with the normal pressure(namely: grinding current) if the bracket of Scrubbing Machine is not strong enough. For the selection of board cleaning machine, please refer to the relative contents at www.goalsearchers.com or the brochure << How To Choose Scrubbing Machine>> that published by our company.
6．It is easier to get surface damage for GSH brand buffs, therefore more attentions should be given during all processes. For deburring section, pay attention to the broken borer and oversize burr/ before out layer (DF dry film)processing, pay attention to the oversize copper wire at the board edge and copper burl on the surface; before WF welding protection, pay attention to the copper sheet raising or corner raising. Furthermore, for the board placement, it should be put equally on the left and right, in this way it not only avoid the occurrence of Dog-gnawed Bone Phenomenon to the buffs but also prolongs the service life of brush rollers.
7．Just like the nylon brush rollers, the GSH brand buffs are very sensitive to the temperature of cooling water, please control the cooling water under 35 ℃, otherwise the cutting power of brush rollers will be reduced, it is unfavorable for the cleanness of board surface and creating enough surface roughness.
8．When defects occurred on the brush rollers and it needs dressing, 20-50 board dragging actions must be done after brush dressing. Generally speaking, there are no abrasives and nylon fibers left on the surface of brush rollers after dress, the following work should be done is to remove the fibers on the surface via board dragging ( very low operating speed, such as 0.5-1m/min) and expose the grinding material or sand and resume the cutting power of brush rollers( attention: the resume of cutting power is: there should be uniform brush mark on the polished board), and then it can be used for mass production.
|
