Electronics Forum | Thu May 24 19:27:50 EDT 2007 | kevinjm
We have a similiar problem with kester em907, a pb free paste. You say that your AOI system picks up blocked apertures, do you mean that the printers own camera looks at the stencil and sees apertures blocked? Or, is it picking up insufficient paste
Electronics Forum | Tue May 22 12:47:52 EDT 2007 | cyber_wolf
Is there anyone out there using this ? It looks like they only sell it for the 643 machines. Can it be adapted for 642 machines as well ? We have 2 major problems: 1. Operator makes width change adjust without removing supports from previous job. Ta
Electronics Forum | Thu May 24 12:55:19 EDT 2007 | pjc
First off, go with HiE (Hi Efficiency) machines only. UP3K and UP2K have huge differences- board size, speed, options, etc... too many to list really. I would recommend UP2K HiE over UP3K HiE. Its a simpler machine and easier to find on the used m
Electronics Forum | Fri May 25 08:06:19 EDT 2007 | davef
Soldering PTFE boards * Exposure to the high temperatures needed for solder reflow poses no problem of loss of peel strength since the exposure times are relatively short. * There are many different types of PTFE based products that may perform diff
Electronics Forum | Tue May 29 09:36:24 EDT 2007 | davef
oxygen sensor instrumentation Amoung the oxygen monitor suppliers that tailor themselves to reflow machines are: * MapCheck 9000 Process Oxygen Monitor [Topac; 231 CJC Hwy, Suite 103 Cohasset MA 02025; 781-740-8778 F781-740-8779 topac.com sales@topa
Electronics Forum | Wed May 30 09:53:05 EDT 2007 | mmjm_1099
Hello all, I have some issues arising with having to change some bottom heater elements and blowers. Can someone tell me how diffucult it will be to accomplish this with no trianing back ground on this. I have opened the books and made sense of most
Electronics Forum | Wed May 30 13:50:57 EDT 2007 | rgduval
I replaced an upper element in an 1800W. Took about 4 hours total. That included arguing with the rusted in screws, messing around with warped shields, and a call to Heller Tech Support to go over how to do it. In the end, it wasn't nearly as comp
Electronics Forum | Wed May 30 19:08:58 EDT 2007 | darby
Mark, You should find that the blower motors and heaters will be replaced free of charge by Heller. I have four Heller ovens and have found that to be the case. I am the original purchaser however and it may be different if you have purchased the mac
Electronics Forum | Thu May 31 10:52:31 EDT 2007 | patrickbruneel
A solder wire classified as L0 under IPC J-STD-004 means that the flux residues can be left on the board safely, and when you select this type of cored wire the intention is not to clean. You just select a solder wire that gives you an acceptable lev
Electronics Forum | Thu May 31 11:26:33 EDT 2007 | gsala
Tnks Patrick, additional infos..... we are just playng with different NC solder wires L-F, the best results in terms of solderability (faster solder flowing, holes filling up) it seams are coming from an ROM1, as we know, according to J-STD-004, or
.png)
winsouce.jpg)
