Electronics Forum | Thu Jun 22 12:40:40 EDT 2000 | Boca
Everybody's right! Two concerns are proper preheat for the flux and reduced thermal shock to surface mount components. The stupid er dumb thing is that these can be at odds with each other. The flux vendor usually specs topside temp before wave.
Electronics Forum | Mon Jun 12 10:57:51 EDT 2000 | Jason
I am new to wave soldering. Any information is greatly welcomed. Here is the problem. After soldering the boards they have a film on the bottom of them and sometimes a white powder looking substance. I have tried decreasing the amount of flux on
Electronics Forum | Fri Mar 17 16:39:33 EST 2000 | Larry
We have just installed an omega wave to our W/S machine and are tring to W/S some of our bottom side surface mount components. I am still getting skips on some sot 23's. The component lay out meets all IPC 782 guidelines. I have verified these setti
Electronics Forum | Mon Mar 08 09:23:13 EST 1999 | Clifford Peaslee
| A recent thread ... | | Pre-heat for Ceramic Capacitors - Igmar 10:21:55 03/04/1999 | | ... was addressing something that was discussed in an earlier thread. I searched 'til I was ARRRRRRHHHH! without finding the earlier thread. The weird part
Electronics Forum | Fri Sep 11 15:11:23 EDT 1998 | Dave Celestian
I am running composite fixtures on my wave solder machine and after about 500 passes each (1 month)they are showing serious signs of wear in that the composite surface is bubbling up and glass fibers are also starting to show. The problem here is t
Electronics Forum | Mon Sep 14 09:09:10 EDT 1998 | Earl Moon
| I am running composite fixtures on my wave solder machine and after about 500 passes each (1 month)they are showing serious signs of wear in that the composite surface is bubbling up and glass fibers are also starting to show. | The problem here
Electronics Forum | Fri Sep 11 15:26:15 EDT 1998 | Upinder Singh
Dave, What exactly is the material used for making the fixtures? Upinder ====================== | I am running composite fixtures on my wave solder machine and after about 500 passes each (1 month)they are showing serious signs of wear in that the co
Electronics Forum | Tue Jun 23 18:43:23 EDT 1998 | D.Lange
| I am experiencing a wave-soldering problem with a leaded capacitor - too much solder above the board!! The capacitor lead is .020" dia. and the hole size is .038". This only occurs on the negative lead of the component. The capacitor is also axi
Electronics Forum | Wed Dec 31 08:55:09 EST 1997 | justin medernach
| Has anyone had any experience with thermal shocking | and cracking of SMD capacitors during the rework process? | My company was advised to preheat capacitors to 125 C | at a rate of 2 C/sec before replacing them onto boards. | Would this maybe
Electronics Forum | Thu Jan 17 20:33:05 EST 2002 | ianchan
Hi, Can anyone help explain the benefits/disadvantages of bareboard pcb baking, as part of the pre-heat conditioning, before the bareboard pcb use in SMT production run? The pcb board is 200mm x 240mm panelized pcb board, and has 28 smaller pcb boa
