Electronics Forum: electron (Page 5005 of 7892)

Waves soldering: not enough solder remaining on pads

Electronics Forum | Tue May 23 03:40:20 EDT 2017 | bukas

the problem I had with pump was that turbine intake was eached by alloy. when I repaired intake, it was a irregular hole about 32mm in diameter, mechanics welded piece of plate with a 24mm hole (that was a factory size) we had to reduce pump speed fr

Waves soldering: not enough solder remaining on pads

Electronics Forum | Tue May 23 03:51:41 EDT 2017 | bukas

i had 2 pumps xD also, propeller size can give you a clue. do some research on turbines of any kind, its same principal. you can have someone check it for you on same machine, i'm sure someone will help.

Waves soldering: not enough solder remaining on pads

Electronics Forum | Mon Jun 05 17:37:51 EDT 2017 | stevezeva

Hi Zac, In looking at your photos, you may not be having a problem with your machine, but with the solderability of the PCB. I've zoomed in to an area that looks to me like the solder has de-wet from the pad. The leads appear like it almost has a fi

Waves soldering: not enough solder remaining on pads

Electronics Forum | Mon Jun 05 18:45:07 EDT 2017 | zsoden

Hi Steve, I agree with your assessment, it would certainly seem like the pads are de-wetting. But what could be the cause of this? Contaminated solder? The boards are new out of vacuum sealed bags (with desiccant sachets), so I can't see it being the

Waves soldering: not enough solder remaining on pads

Electronics Forum | Wed Jun 07 09:39:49 EDT 2017 | stevezeva

Hi again Zac, Nickel appears a little darker and won't have as much of a deposit as it is plated on. But if you want a quick test you can buy a little kit from Amazon that tests for nickel. Some people are allergic to Nickel https://www.amazon.com/

Waves soldering: not enough solder remaining on pads

Electronics Forum | Tue Aug 01 07:24:39 EDT 2017 | emeto

Zac, how about the following: 1. Thermal profile for the flux 2. Is your wave leveled? - If you see better joints on one side, you should probably level the machine 3. Just for elimination, do you have another flux, that you could spray on a board

Waves soldering: not enough solder remaining on pads

Electronics Forum | Thu Aug 03 14:19:50 EDT 2017 | sumote

Looking at picture 20170801_095540.jpg, the leads look pretty long to me. This would cause you to have to lower your solder pot so that they don't get hung up. Have the leads cut to ~0.150" (0.200" max) long and then raise your pot up.

Waves soldering: not enough solder remaining on pads

Electronics Forum | Sun Aug 06 19:05:38 EDT 2017 | zsoden

OK thanks. I had assumed that since the soldering was generally smooth and we were having no issues with bridges that the flux would be operating fine. But there really isn't much left to check so I'll get my profiler fixed (the thermocouple has been

First time Pick and Place Machine

Electronics Forum | Mon Jul 17 15:11:23 EDT 2017 | emeto

Sergey, it will be probably hard for the money, but running/trying to run 2005 machines is not going to be fun. Probably is better to outsource your products for now and wait until you can prepare better budget for it or you find better machines for

First time Pick and Place Machine

Electronics Forum | Mon Jul 17 16:45:24 EDT 2017 | capse

Sergey, The Assembleon GEM Series machines were built by Yamaha. They currently support them via Trans-Tec, their distributor. At least in Asia and NA, I'm a Yamaha/Trans-Tec Rep in the southeast US. Remember it is buyer beware in the secondary marke


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