Below are the parameters that our wave operator reported. Flux: No-clean Indium 3590-TX The following are conveyor speeds and what they yield: 6.0 FPM yields a topside temperature of 206 Degrees F and a solder dwell of 1.1 S. (via wave optimizer readings) 5.0 FPM yields a topside temperature of 223 Degrees F and a solder dwell of 1.4 S. (via wave optimizer readings) Preheat temps are 700 degrees F (zone 1) and 750 degrees F (zone 2) Solder temp is 500 degrees F I have used immersion depths of 0.032 and 0.024 for this assembly. Rich -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory Sent: Friday, July 23, 2004 9:16 AM To: [log in to unmask] Subject: Re: [TN] Solder Bridging on a Thru-hole connector Hi Rich! Finally got your picture, and it's posted. Go to: http://www.stevezeva.homestead.com/files/Solder_Bridging.jpg This picture is pretty blurry, but it's clear enough to see that you shouldn't be having bridging problems with this connector. It's a standard-pitch dual-row connector, and there shouldn't be bridging problems with it. Can you share with us the parameters for the wave that you're using? Belt speed? Pre-heat temperature? Pot Temperature? Flux Type? I see from your web page that you have an Electrovert Econopak Plus 400 wave machine, with a Sonotech spray fluxer. This machine should be capable of waving that connector without bridges. In the meantime, here's a link that has a pretty good troubleshooting guide for wave soldering defects. It's based on IPC-S-816. It's not the end-all for troubleshooting problems, but a good starting point. http://www.ecd.com/retrieveFile.asp?file=WS_Expert_Guide.pdf -Steve Gregory- > Hello everyone, > > I am currently encountering a wave solder issue that I would like to ask > your opinion about. I have a dual row connector (Molex part # > 70246-1621) that accumulates soldering bridging in a group of three. I > sent Steve an e-mail to see if he could post the picture on his website > so hopefully he can but until then I'll try and give you a generic idea > of how it is bridging. (The "arrow's" below represent the bridging > between the leads) The wave operator has tried different speeds and > board directions but continues to struggle with this particular > connector. > > If anyone has any input I would appreciate it. > > TIA, > > Rich > --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------