Electronics Forum | Wed Oct 24 11:18:03 EDT 2007 | cyber_wolf
If you are talking about the REM oil sold for guns then I would not use it personally. B.T.W. REM oil has teflon in it. I quit using it on my guns because of its poor performance. It now resides in my garage...I use it to lube the axles on my push m
Electronics Forum | Thu Oct 25 07:54:57 EDT 2007 | hussman
It's all by feel and looks. Too many variables to tell you exact number of times. Most profile boards are set up to perform initial profile and then repeatability at a set period after that. So changing boards will alter the t-couple and skew your
Electronics Forum | Fri Nov 09 08:45:31 EST 2007 | philkaz
I am in the R&D department at KIC. We have been making thermal profiling equipment for 20+ years. A standard circuit board is made from FR4 fiberglass. A typical solder reflow profile, whether leaded or unleaded, takes the board above the "glass t
Electronics Forum | Sat Oct 27 12:52:58 EDT 2007 | gregcr
We do very little wave soldering, maybe once a week. We have been running a Novastar Spartan 8S for years with very good results. I do wish we had the wider 12S for the wider boards, but it has only come up once in 7 years. I think there is a lot
Electronics Forum | Tue Oct 30 06:20:58 EDT 2007 | aj
Hi All, I would appreciate some advise with regard to Leadfree settings for a 5 zone reflow oven. I have a 35mm square BGA 672 pin on board. I am struggling to get the Delta T down to 2 degrees C . I have 5 Thermocuples drilled up from the bottom a
Electronics Forum | Tue Oct 30 10:30:24 EDT 2007 | wayne123
how many layer board is it? what kinda temperatures is your oven currently hitting. In our reflow oven I have been using a profile that is the same for the top and bottom at zone 1 111C zone 2 at 164C zone 3 at 161C zone 4 at 208C and zone 5 at 2
Electronics Forum | Thu Nov 01 17:24:20 EDT 2007 | jmelson
I think the Yamaha 84S is very similar to my Philips CSM84. head 3 cannot reach all the feeder locations. I believe feeder locations 1-3 on the front rail, and is it 41-43 on the back rail (the first 3 again) are out of range for the X axis to move
Electronics Forum | Fri Nov 02 08:10:40 EDT 2007 | floydf
Has anyone ever looked into the possibility for > laser marking 1812 size X7R ceramic chip > capacitors injecting sufficient energy to cause > cracking when voltage is applied? If so, what > were the findings? We are having failures of > caps
Electronics Forum | Mon Nov 05 19:37:32 EST 2007 | davef
You weren't specific about the frequency band were you're operating. So, let's pound a couple of stakes in the ground. * Conventional tin-lead plating of 200-300 �m is quite satisfactory for lower frequencies in the range of 2GHz. * At frequencies h
Electronics Forum | Mon Nov 05 00:51:58 EST 2007 | omidjuve
We have a problem with soldering of a 96 pin header connector(9001-11961c00l1a from kingmate) we use 3 different wave soldering but in all of the machines we have many short circuit between the pins . the wave soldering machines that we use is fr
