Electronics Forum | Tue Aug 11 19:46:34 EDT 2009 | padawanlinuxero
Guys I have a question since the ever present problem with the crack switch we had to change to a low temp lead free solder paste in these case eutectic 58Bi/42Sn and 57Bi/42Sn/1Ag alloys, now the main question whats diferent between these one and th
Electronics Forum | Wed Aug 12 04:37:14 EDT 2009 | sachu_70
SAC305 has a liquidous state temperature 217 degC. Check the datasheet to compare to this temp. I suppose, it may be lower. - Cheers !
Electronics Forum | Wed Aug 12 14:37:41 EDT 2009 | davef
Try this: http://www.pwbrc.org/members/pdf/works99/Hua.PDF
Electronics Forum | Tue Mar 18 05:32:09 EDT 2008 | gregoryyork
What volume of boards are you putting through. 1Kg per hour does sound very high but then again it does depend on volume Using an antioxidant is a must with Lead Free some alloys have additions in them to start with but those drop out with use so th
Electronics Forum | Sun Sep 17 09:02:53 EDT 2006 | davef
Just as you will not find such a specification for SnPb solder, you will not find such a standard for SAC. We talked about solder strength several times previously here on SMTnet. Search the fine Archives for others comments. For instance: http://
Electronics Forum | Thu Mar 20 09:01:33 EDT 2008 | meritajs
Thanks Greg Our main problem is that we are putting small number PCB through, about300 PCB, size180*250. Such number order our customer in week. In result we got such high solder consumption and high production cost. We will tray to use antiacidant.
Electronics Forum | Fri Mar 21 08:39:38 EDT 2008 | lococost
If you are saying you're going through 1kg/h while only producing 300 pcbs a week and the rest of the time the machine is standing still, then 1.there is something seriously wrong with your machine or 2. check if an operator is suddenly covered in sh
Electronics Forum | Tue Mar 15 21:12:45 EST 2005 | Ronald
As a QA guy, I cannot find a portable equipment to check lead free solder in the container during processing.
Electronics Forum | Tue Mar 15 21:48:10 EST 2005 | KEN
Huh? What is it you need to check for? What container? Explain please.
Electronics Forum | Wed Mar 21 07:44:19 EDT 2012 | cuervo
Hello ! I have a vitronics 500s ( five zones), and the solder paste is ALPHA OM-338-PT lead free. have anyone a profile to start and test, i need some reference temperatures.and conveyor speed thanks !!!
