Electronics Forum | Tue Jun 18 05:40:38 EDT 2002 | ianchan
Hi mates, finally! some sense to all this, so this bloke is concerned about "ppm = quality" variations... looking back through all the muck in this thread, last posting before the s**t hit the ceiling was: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Date: June
Electronics Forum | Thu Jun 13 11:30:41 EDT 2002 | davef
Most SMT lines are comprised of several pieces of equipment. Each piece of equipment, the components, the plant environment, and the people running the line can have / cause variations in their operation that each can affect product quality. Consid
Electronics Forum | Mon Jun 17 17:02:38 EDT 2002 | kenbliss
Dave, in theory I agree with you, but in the real world isn't the expensive fruit, the fruit you spend countless hours trying to fix a small defect that has a fixed cost, the cost of the board as a single unit. Versus the cost of running the factory
Electronics Forum | Mon Jun 17 21:23:38 EDT 2002 | ianchan
Hi mates, ain't we all forgetting something? this bloke who posted this thread, has not even specified what his "stability-variation" issue is all about? defect/quality variation? downtime variation? CPH variation? etc... Just read this bloke's th
Electronics Forum | Fri Jun 14 00:35:58 EDT 2002 | kenbliss
DaveF's request for more data of course is needed to be specific, but here are a few ideas and places to start. If the SMT line is causing the defects you need to identify where on the line the problem is being caused. What we see regularly is mish
Electronics Forum | Fri Jun 14 13:19:15 EDT 2002 | mjabure
The first question is, is this a high mix, low volume environment or vice versa? If it's the former then Kens solution is something you might want to look into. Depending on your feeder set up you might check to see if your operators have been traine
Electronics Forum | Mon Jun 17 10:27:45 EDT 2002 | bdoyle
Guys, Everyone who posts here works for a company. I get emails occaisionally from people who are not pleased with the way the forum is progressing lately. If someone has a problem and a person offers solutions why is that bad? If an answer is p
Electronics Forum | Thu Jun 20 18:56:31 EDT 2002 | stepheno
If you don't already have one, the best investment you can make in your case is a good thermometer/humidity meter. They are not at all expensive. Then record the temperature and RH about 4 times a shift. After a few weeks (maybe sooner) you can se
Electronics Forum | Sun May 28 23:01:31 EDT 2006 | jacksaria
Hello to all, We are encountered many problems/defects in SMT lines.I would like to know your suggestion or recommendation for SMT optimization and improvement. What are the step by step solutions in order to optimized and to improve the printer, pi
Electronics Forum | Mon Feb 11 18:17:48 EST 2013 | marcelorotofrance
I have disassembled and cleaned the most of the feeders indeed. This gave me some improvement on some units. Thanks for the data, sir.
