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
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/
Electronics Forum | Tue Jun 27 12:21:32 EDT 2017 | deanm
Sounds like a selective soldering machine would be your ultimate answer. But if you must hand solder, an oven, preheater or anything to heat the core of your board would help as mentioned before. We've used hot plates with success. As far as irons g
Electronics Forum | Thu Jul 13 02:30:29 EDT 2017 | jandon
We are using hot-plate. It is the safest method to rework aluminum substrate PCB's. http://www.martin-smt.de/en/rework/products/pre-heater-hotbeam.html "For efficient rework on heavy electrical systems with flat bottom surface and LED PCBs the pow
Electronics Forum | Mon Aug 07 13:27:40 EDT 2017 | dleeper
Are you seeing this on bare PCBs or after assembly? with Immersion silver, the finish over the copper should be very thin and uniform, that's the main advantage of ImAg. You should not be seeing excess plating filling vias unless: A)Its HASL, not
Electronics Forum | Fri Feb 09 03:03:29 EST 2018 | robl
Hi SuMoTe, Maybe a lot cheaper to go to a connector manufacturer and buy your pins from them - most standard 2.54mm pin headers use 0.64mm square pins (0.025" = 0.635mm), that are 12.6mm (0.5") long. Perfect. They will be plated with a solderable
Electronics Forum | Fri Dec 01 13:55:44 EST 2017 | emeto
Brikainis, it looks like these vias are not plated and closed. I would say that thickness of your paste is lifting the part. Are you willing to try another stencil with ground pad apertures matching the via holes? It is probably worth trying. Anothe
Electronics Forum | Tue Nov 28 10:48:29 EST 2017 | georgetruitt
Some things to look into are the component finish, material and composition of the solder, design of the smt stencil, reflow profile or process atmosphere (N2 or air)also contribute to the solder result. The influence of the PCB itself should be co
Electronics Forum | Thu Nov 08 02:09:05 EST 2018 | vinitverma
If the nozzle gets changed properly but the machine still gives the sensor, then the FNC nozzle detection sensor needs to be adjusted. It is a set of 2 sensors on a plate on the either side of the FNC. If the nozzle is not changed successfully and ge
Electronics Forum | Wed Jan 17 12:10:47 EST 2018 | guilherme_castro
I have the follwing problem in our proccess we have to many problem with via hole and trought plated holes like voids air bubbles . During the eletricial test process our machine is not detecting this problems , the voids and air bubbles How
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