Electronics Forum | Fri Sep 14 09:15:06 EDT 2001 | ksfacinelli
We have two batch systems here. The systems have worked very well but the interior stainless steel is very dull. We are running a DI based open loop system for cleaning primarily a WS flux. In special cases we have used ArmaKleen E-2001 and Alpha
Electronics Forum | Mon Jun 06 12:51:17 EDT 2016 | wlsmt
My operator applied flux gel ALPHA WS-609 on MG P/N FTH101XAP (CAP ALUM 100UF 50V 20% SMD) before aqueous washing the PCBAs. Solder paste used was ALPHA WS-820. Now the caps have yellow stains. Any solution to this is appreciated. Tks
Electronics Forum | Tue Jun 07 12:07:30 EDT 2016 | wlsmt
Sorry davef. I was not being clear. PCBAs came out cold soldered after being reflowed the first time with ALPHA WS-820. The flux gel ALPHA WS 609 was supposed to be applied only onto the terminations of caps where ALPHA WS-820 was for a second refl
Electronics Forum | Wed Jun 15 10:38:41 EDT 2016 | laynefelix
Hi everyone..i am new here. I am hardware design engineer and as per my experience PCBAs came out cold soldered after being reflowed the first time with ALPHA WS-820. The flux gel ALPHA WS 609 was supposed to be applied only onto the terminations of
Electronics Forum | Tue Jun 07 10:24:59 EDT 2016 | davef
wlsmt: You’ve got to help us out here: * Why did you apply solder paste to capacitors prior to water washing the PCBA [where the caps were attached?]? * Did you reflow the Alpha WS-609? * How is the Alpha WS-820 involved in this? * Talk about the
Electronics Forum | Thu Jun 28 13:42:31 EDT 2018 | aksaustin
Are you just washing WS boards? Are you using any chemicals?
Electronics Forum | Tue Apr 01 19:21:25 EST 2003 | Myu
I'm a user changing over from WS-609 to WS-709. WS-709 has less voiding problem and longer stencil life than WS-609. Ws-709 has a less foaming during washing process. Thanks, Myu
Electronics Forum | Thu Dec 07 11:49:28 EST 2006 | K
We currently have RMA and WS soldering processes here and do batch cleaning for both. We are experiencing some capacity issues and are interested in looking at an IN-LINE aqueous wash. My experience with in-line wash is only with WS. 1. Since RMAs
Electronics Forum | Tue Mar 03 07:47:48 EST 2020 | dontfeedphils
Thanks for the info. In a past life I ran everything WS and washed in a batch wash using saponifier. I'm surprised I never saw anything then as we would regularly wash boards assembled on only one side. Unless it's specifically washing in DI only.
Electronics Forum | Tue Sep 30 14:24:37 EDT 2008 | eedlund
A water soluble solder paste (AIM WS483), reflow and wash. We are considering using AIM NC254 No-clean solder paste to eliminate the wash step.
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