Electronics Forum: kester (Page 34 of 52)

Double-sided reflow process.

Electronics Forum | Thu Oct 08 22:32:53 EDT 1998 | E.

*Reply to: ericr@nj.tanon.com Without going into a lengthy explaination {at this time}, has anyone experimented, tested, evaluate, and/or 'perfected' an SMT double-side reflow process. Presently I'm using a Kester R593 OA (water soluble) Sn63/Pb37 -

Wave Solder Fixtures: Biting the dust FAST!

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

Re: Wave Solder Fixtures: Biting the dust FAST!

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

Re: Wave Solder Fixtures: Biting the dust FAST!

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

Re: Temperature & Humidity Effects on Solder Paste

Electronics Forum | Fri Jul 24 12:35:56 EDT 1998 | Russ Miculich

The variance of useability of any of the pastes with a difference of 5% in your overall environment will probably not even be measurable in the difference of the paste be it RMA, Water Soluble, or No Clean. What is the printer you are using and is i

Re: white residue after wash

Electronics Forum | Fri Apr 03 19:04:02 EST 1998 | Steve Gregory

Hi Jacqueline! The dreaded white residue huh? YUCK! This seems to be a ongoing issue...probably because there are many different things that can possibly cause this. There's a real good article about the different causes of this problem at Kest

Re: Water Soluable Flux for Military

Electronics Forum | Sun Apr 05 18:36:41 EDT 1998 | Graham Naisbitt

Sylvia, I believe you will find that contrary to Scott Cooks submission, that the work carried out by Robert Clark of Hughes Missile Systems at (then) Tuscon Arizona formed the basis of the MIL-F-14256 spec which "Qualified?" or at least "Approved" O

Water soluble solder resist masking

Electronics Forum | Fri Dec 12 10:28:30 EST 1997 | David Syracuse

I am interested in locating a water soluble resist mask that does not leave a residue after wash and is easy to work with during the screen printing process. I have tried the Alpha Metals 110 and 220 solder mask and have found that it does not leave

Wave solder question

Electronics Forum | Tue Feb 19 14:00:55 EST 2002 | global

We have had some discussions about what causes parts to lift out of the holes when going over the wave on our flow solder machine. The machine being used is a Treiber (700 series). There are two bottom pre-heaters and one top pre-heater. We try to pr

Solder paste stencil life

Electronics Forum | Tue Jul 02 14:24:30 EDT 2002 | paul_bmc

My question is refering to "stencil life". How accurate is this and is this something I can go by. The solder paste I am using is Kester R562, R562 specifications state that it has a 12 hour stencil life, optimal temp ranges 70-77 F, 35-65% RH. Ou


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