Electronics Forum | Mon Mar 13 13:01:08 EDT 2017 | emeto
Very interesting, how you can answer that with that many details that you gave us. Here are some preliminary questions, before anybody can give you any answer: Pb or Pb-free? 3mil stencil or 8mil stencil? How many shifts? Quantity will depend also o
Electronics Forum | Thu Jun 07 18:09:21 EDT 2007 | stephan
We noticed unsufficient soldering on some 0805 chips located between pins from a plastic bloc connector . All chips are soldered with 45� angle. Flux quantity , preheating , contact time and PCB quality was checked. Do you know any international stan
Electronics Forum | Wed Jan 26 21:16:28 EST 2000 | Dave F
Mark: It sound like one or more of the following is happening: * Previous heat cycles (ie, reflow, reflow, wave) are degrading the surface protectant * Wire solder flux doesn't have enough stomp to burn through the corrosion. That poor ol' stuff
Electronics Forum | Fri Jun 22 06:31:08 EDT 2012 | grahamcooper22
Are you spray fluxing ? If so, check that you are getting flux onto the whole pcb uniformly.... That BLT flux is a water based material, are you getting rid of all the water in the preheat before you get to the wave ( can you hear any spitting as t
Electronics Forum | Tue Jan 25 14:25:47 EST 2000 | Mark Miller
Has any one experienced hand soldering through hole components to white tin plated PCB's using no-clean wire solder? Our facility is presently evaluating white tin vs Sn/Pb coatings. Our only difficulty at this time has been hand soldering of wires
Electronics Forum | Fri Dec 27 12:42:36 EST 2019 | rgduval
In your video, it looks to me as though the bottom of the glass is too low, but, I can't tell for certain. As a general rule, keep the top of the wave no higher than the mid-point of the PCB. Top flow will take care of itself thanks to flux and cap
Electronics Forum | Thu Jun 14 04:24:32 EDT 2012 | brettrenishaw
Yes pads are still gold after the wave soldering process even if you wave solder a pcb several times. I have tried soldering using an iron and the solder takes to the pad as you would expect. This happens on all boards of this type and all boards are
Electronics Forum | Wed Jul 09 19:05:06 EDT 2003 | randywomack
LOZ. Under-cured or out-of-spec(sloppily) applied resist is realistic. What other physics: Shiny resist surface is more prone to balls then matte finish. How about an operator eating fish & chips before handling the boards. Don't laugh... ... saw th
Electronics Forum | Thu Oct 13 15:41:30 EDT 2005 | lyrtech
Hi, We have a customer who give us a 20K board contract each year. It's only thru-hole components.The baord is HASL plated. So we pass it into our wave. No problems. Recently, our customer decided to go into GOLD PLATED finish. We take the same re
Electronics Forum | Fri Oct 14 11:56:49 EDT 2005 | patrickbruneel
Mika, 1.) Is there a maximum board thickness where it would be almost impossible to get a decent hole fil? Answer: The thicker the board the further the solder has to travel and the more you depend on solderability of boards and components, machine
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