Electronics Forum | Tue Aug 01 12:25:12 EDT 2006 | slthomas
Yes, I realize the odds of anyone having any experience with these things is limited but I have to start somewhere. Can anyone with knowledge of model TRM-SMD give me a holler? I have some questions about how they were set up at the factory, specifi
Electronics Forum | Fri Jan 19 07:26:45 EST 2007 | Richard-magictek Tech
kindly send me your reflow profile ---and also the PCB lay out i shall able to determine your process flow on speed....and glue application i can be reach at this email- rdm@magictek.com.cn my web site is ;www.magictek.com.tw we are furance maker w
Electronics Forum | Wed Feb 14 15:01:59 EST 2007 | davef
Latex is not a conductor. It's an insulator. So, it will not conduct a charge to the metal wire rack. You can test this hypothesis by charging a latex tube in the shop and measuring its conductivity to ground. We believe that you should not have
Electronics Forum | Wed Sep 05 13:45:36 EDT 2007 | john_smith
Ian, We currently have 2 inline vapor phase ovens and 1 batch oven. Tomb stoning is inherant with the Vapor phase systems but most can be stopped with a good profile. Most of our mechanical problems occur with the inline ovens during carrier transfer
Electronics Forum | Tue Jun 17 15:35:12 EDT 2008 | slthomas
But don't you need to control the rate of the drop in pressure? I'd think if you pull down quickly it just results in the same popcorning you'd see in a reflow oven. I just know it's not hard to boil water in a vacuum chamber. For that matter, it's
Electronics Forum | Wed Jun 18 11:33:21 EDT 2008 | slthomas
Dave, can I assume that in the case(s) you're referring to, there was no gas introduced into the evacuation chamber to push any expelled moisture out of the system? In the industry I was involved with (implantable medical devices), we used nitrogen
Electronics Forum | Fri Nov 20 14:50:13 EST 2009 | davef
One of our instruments has a high impedance front-end. We: * Passed functional test in the environmentally controlled shop. * Failed test, on the same unit, while carrying it to burn-in chambers in an uncontrolled part of the plant. Solder flux resi
Electronics Forum | Thu Jun 07 05:11:42 EDT 2012 | cp38260
Hi, I have pcbs (Duroid/RT 5880) with raw copper, soldered in vapour-phase chamber at 230 degrees Celsius. During soldering, copper gets tarnished. Cleaning with Vigon A250 removes the tarnished layer. Indeed, in the VigonA250 techn. datasheet it is
Electronics Forum | Mon Aug 13 13:00:49 EDT 2012 | graememurphy
The problem was that the wiring between the overtemperature capillary thermostats had burnt away. There are eight of these, four on the bottom half and four on the top half of the heat chamber. A rubber blanking grommet covers the adjustment shaft of
Electronics Forum | Mon Mar 16 08:44:42 EDT 2015 | davef
The environment of a burn-in chamber is specific. That environment has a fairly well defined affect on the metal contacts of a burn-in socket. Test socket cleaners are tailored for those specific requirements. Look at the MSDS for the WS flux and th
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