Electronics Forum | Wed Feb 14 14:16:25 EST 2007 | branman5
We are a pcb manufacturing facility and we have a question. We wash our boards in a metal wire rack that has latex � inch tubing connected to it so the pcbs do not move from water or air flow. It acts as a buffer between the wire cage and the pcb. Ca
Electronics Forum | Mon Oct 22 11:47:59 EDT 2007 | brulal1
Thank you guys for your help, I do not clean any on my assemblies who are build by the SMT an wave soldering department, we do used liquid fluxes Kester 951 and cored wire keester 245, usually it�s for batteries connector, led, terminal and wire rap
Electronics Forum | Wed Aug 26 08:07:25 EDT 2009 | davef
Many solder wire suppliers put a on rolls of solder wire either a: * "Date of manufacture" stamp and then specify a shelf life in their product documentation ... OR * "Date of expiration." J-STD-005, 6.2, 6.3, and Table 4, where it states "If the st
Electronics Forum | Wed Aug 26 10:48:30 EDT 2009 | grahamcooper22
Some print expiry date on reels and some specify a shelf life on data sheets. Two main reasons are that the flux in the wire is a mix of chemicals and over time in storage these can react so soldering performance can be changed. Although I have to sa
Electronics Forum | Wed Apr 21 14:38:30 EDT 2010 | remullis
Newer Universal Conveyors use 4 wire smema and FUJI should accomodate this protocol in its config screens. Old Universal Conveyors and some machines used SMPI (forget how many wires), You can purchase the 4 wire smema cable from UIC and conversio
Electronics Forum | Fri Jun 25 12:19:52 EDT 2010 | operator
I have always been under the impression that you want the flux make-up of your cored wire and supplemental flux (squeeze bottle) to be as identical/compatible as possible. I was just looking over a manufacturers datasheet for a resin-based cored wir
Electronics Forum | Mon Apr 11 08:27:10 EDT 2011 | leemeyer
I have had similar problems before where the machine will intermittently stop with a limit error. Reset the machine and away it goes. Replacing the ribbon cable that runs from the head (37 pin D-sub)has solved this problem. This cable gets flexed a l
Electronics Forum | Tue Aug 02 15:03:37 EDT 2016 | davef
On a previous black pad experience we soldered a wire to a fiducial and did a pull test to failure. On the black pad board the wire and solder pulled of clean leaving the fiducial on the board. On good boards the copper came off with the wire. If you
Electronics Forum | Tue Sep 12 08:39:38 EDT 2017 | jefri_simorangkir
we are turning on the printer, suddenly the printer is off after checking there is solderball on pad capacitor component 0603 our question is what can a solderball stuck on one pad can when melting and causing shortsolder (being connected with other
Electronics Forum | Fri Jun 15 01:50:48 EDT 2001 | Anders
Dear Dave. Thanks a lot for your reply. The link to the guidebook is very interesting. Thanks Anders.
