Electronics Forum | Mon Jun 20 21:54:38 EDT 2005 | darby
Contact your paste supplier and see what they say. My information on SAC 305 FROM MY SUPPLIER was - "The cool down rate is not as critical for Pb-free solder joints, as it was for SnPb. The grain sizes do not differ is size in the Pb-free bulk solde
Electronics Forum | Tue Jun 21 08:47:47 EDT 2005 | Rob
Thanks Olas, I have some experience with these machines - not too impressed with the feeders though, but I will take another look. Hi VickT, Thanks, but no thanks, the Advantis is not what I am looking for - it is neither small, nor a low cost pro
Electronics Forum | Wed Jun 22 08:19:05 EDT 2005 | cyber_wolf
Our TP9 UFP machine keeps nicking the edges of A12 tool tips. I think it is because the X axis is bouncing when it comes to the component pick position. When the X bounces it is causing the tool to hit the tape hold down arm. Has anyone ever encount
Electronics Forum | Tue Jul 19 04:10:21 EDT 2005 | Rob
Hi, On a semi related front, part of our company is a distributor (I'm not going to say who, coz that would be sneaky advertising), and on all components shipped we've added the follwing to the label: ROHS Compliancy Status(Lead free & plastics etc
Electronics Forum | Tue Jun 28 10:51:32 EDT 2005 | mattkehoe
Thanks for the replies, - solder paste used ? NC ? other ? Water soluble 63/37 paste - reflow in Air or N2 ? Infrared - temp ramp up before soack (�C/second) ? Will have to check. This profile has been used on numerous gold plated boards in our
Electronics Forum | Tue Jun 28 14:37:43 EDT 2005 | Proy
I'm looking for REAL data about how many hours of Lead Free (SAC) alloy run time it takes to really deteriorate or damage a stainless wave solder pot. Realistically if I TIN purge my wave solder pot, how long will it take to be damaged beyond use or
Electronics Forum | Tue Jul 12 20:19:22 EDT 2005 | Tom
Don't mind Sam Adam's and Asahi beer... I'll send you a tantelising pint of Guinness, cool and with a fresh creamy head if you can help me with the following.... What do I do about lead free stencil design? Is there a guideline anywhere? Most lead fr
Electronics Forum | Wed Jul 13 15:26:32 EDT 2005 | russ
The problems we saw had to due with the Flux I believe. We saw what I would call poor coelescence and the residues were very hard for us to clean with our Water only cleaner. I will not lie and say I worked on the process very much. Since we alrea
Electronics Forum | Fri Jul 15 03:29:52 EDT 2005 | dougs
thomas, why isn't it process control, you cant just think that because you've set up your machine properly ( pot temp, wave height, pre-heat etc etc )that everything is going to be ok, there are other factors that you wont find with wave riders or
Electronics Forum | Mon Jul 18 18:36:01 EDT 2005 | slthomas
"thomas, why isn't it process control," Minute detail, really. Defects aren't a measurement of process parameters, they're the result of them (and a few other things that have been mentioned). SPC measures process parameters. It is preemptive, and
