Jason, Have you sent a solder sample from your pot away for analysis recently? It may confirm/deny the existence of impurities in the pot. Justin Braime - Process Engineer Alpine Electronics of New Zealand Ltd ---------- > From: <Jason M. Smith> <[log in to unmask]> > To: [log in to unmask] > Subject: Re: [TN] dross in the solder pot > Date: Friday, 26 June 1998 08:07 > > Experts, I am currently getting alot of failures at my functional tester. > At my post solder station, I am noticing strings of dross across the pins > of connectors. We are having to dedross the pot daily....for a no-clean > process and inerted atmosphering, I think this is a bit extreme. Once, an > operator managed to accidently put stencil cleaner in the flux....could > this cause a reaction unable to be corrected without dumping the pot and > cause excess dross. I initially thought we had too much exhaust drawing > all nitrogen away from the wave. Our flux manufacturer did analyis and has > determined that it's not the residues left which is causing my bridges at > functional. Is a type 'C' solder analysis going to tell me anything of > significance to my problem from any of your experiences? Any > suggestions???? > > Jason Smith > Process Materials Engineer > Lexmark Electronics > > ################################################################ > TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c > ################################################################ > To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: > To subscribe: SUBSCRIBE TechNet <your full name> > To unsubscribe: SIGNOFF TechNet > ################################################################ > Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. > For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 > ################################################################ ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################