Electronics Forum | Mon Jul 03 05:39:05 EDT 2006 | ronalds
Hi, I am experience problems while testing wave soldering SMT components that are glued on the solderside (lead free). Between de leads of SOx type IC's and SOT's develop a great deal of solder beads. I have been using a RSS temp.profile while spr
Electronics Forum | Mon Dec 17 10:46:04 EST 2007 | realchunks
First of all, more info is needed. Solder shorts can be caused by much more than flux. Is the solder short always in the same spot or all over the place? More detail please.
Electronics Forum | Mon Dec 17 15:11:35 EST 2007 | chef
Blew chunks - thanx for thinking outside the box. Of course there's two sides to every story. Just last week I had a new operator "splash" a couple of boards. Top solder was great, it was all one big solder bridge. Come to find out, the operator forg
Electronics Forum | Thu Jul 06 04:41:58 EDT 2006 | Rob
MF300S is quite an old flux, & a lot has happened since then on the flow solder front - are you sure it's designed for Lead free, or is it just a traditional flux that SHOULD work OK with Lead free?
Electronics Forum | Mon Jul 10 07:46:51 EDT 2006 | ronalds
You are right, RSS profile is not the correct description. I am using a profile which heats up quickly to let the flux spread. Next linear up to activate the flux and prevent thermoshock. My experience is however, that small changes in this profile
Electronics Forum | Thu Jul 06 03:03:56 EDT 2006 | ronalds
Thank you all for your input. The MF300S Multicore flux is rated for lead free. There is not much dross or contamination. We are using nitrogen. I've tested the boards with the curing test of IPC-TM-650. I think you're all right about the preheat.
Electronics Forum | Mon Dec 17 11:55:08 EST 2007 | chef
I recently had the same problems, solder bridges on every thing I made, different customers boards, etc. I wave with no-clean flux. As I sorted out problems (pin holes, blow holes, splatter, etc.) I found a lot of variable factors. I changed flux,
Electronics Forum | Mon Dec 17 19:01:45 EST 2007 | bbarton
As someone with a LOT of experience with the "low cost" alternative alloys, primarily SACX, I have one simple question....Are these shorts a new phenomena? WAS your process in control, and all of a sudden it's not? If the answer is YES, take a look a
Electronics Forum | Wed Mar 31 20:49:11 EST 2004 | marcowong
We are trying to buy used double wave solder and ICT machine and we need some advice on selecting the machine and things to be cautious with. It will be greatly appreciated if someone can offer us good suggestions that will help us to minimise mist
Electronics Forum | Wed Mar 31 21:27:00 EST 2004 | marcowong
Dear Darren, Please provide more information of your machine, selling price and where it is at the moment. If it is not in Penang malaysia, please also let us know the transportation cost too. Thank you.
.gif)
