Electronics Forum | Thu Nov 19 06:20:44 EST 1998 | Kelly
| For some as yet unkown reason, we have started to have some boards sag and go under the wave. The boards are surface mount top side and conventional components wave soldered. We have checked the wave hight and both the profiles on the wave solder a
Electronics Forum | Thu May 06 20:11:46 EDT 2004 | gregoryyork
It does sound like your leads are to long, speeding it up will reduce volume on lead and most will wick up the joint but when slow excess solder is left as long leads will have little flux left to aid drainage when it leaves the wave, thus giving a s
Electronics Forum | Tue Nov 30 13:58:57 EST 2010 | flipit
Reading some spec sheets and am seeing profiles for reflow and TTW soldering. A Google search tells me that TTW means "through the wave". Am seeing this acronym on LEDs mostly. I have never seen this acronym before. Why not just wave or reflow so
Electronics Forum | Wed Jul 29 07:45:37 EDT 2009 | patrickbruneel
Deni, When using a no-clean flux preheating is a critical parameter. If you don’t have a thermo profiler you can use inexpensive temp. labels See link http://www.coleparmer.com/catalog/product_view.asp?sku=0806822 or Google Temperature labels If i
Electronics Forum | Wed Jun 11 10:27:33 EDT 2003 | caldon
Frank-In addition (Dave gave some good scoop) we use a Pyrex Glass board to run through the wave. This is useful as you can see through the board .....you can watch the flux coverage, preheat, and Wave (be it Chip, lamda, or??) as it goes through the
Electronics Forum | Thu May 06 19:56:30 EDT 2004 | bruceatknoll
Here is some more info with regarding my Wave. 1. PCB .065" thick 2. leed length .20" (.135" protrution) I know this is high but we use many thousands and cutting each is not practical. 3. no clean flux by way of foam fluxer 4. wave machine is a HOL
Electronics Forum | Tue Dec 27 10:18:03 EST 2016 | anhsang38
Dear Pro, I want to confirm with you about conveyor speed. is 1m/s? We are using wave soldering but it is 1.2m/min, min not second. Pls, check it agian. The flux is not relative this error. It is relative no sodering, bridge. The solder bar is the
Electronics Forum | Tue Jun 17 01:45:30 EDT 2003 | Dreamsniper
Hi, All these guys have provided you good solid infos already! All I can say is that check your wave solder machine's mechanical set-up too...and the Molten Solder Level in the bath must be maintained at an accurate level/height specially after ded
Electronics Forum | Thu Dec 29 10:47:22 EST 2016 | luciano
Thanks SuMoTe, I've already tried fluxing various boards (new clean ones and older ones) without turning the waves on and with different temperature setups (within the suggested params from Alpha) in the preheat zone. The results were in many cases
Electronics Forum | Mon Nov 23 19:34:51 EST 1998 | Mike Demos
Charles: Here are a few possibilities you might want to check: 1) Conveyor width -- if the conveyor is too tight this will cause the boards to buckle as they go through the preheat section. We recently had this happen when we changed operators. 2
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