Electronics Forum | Mon Aug 13 05:17:16 EDT 2001 | nifhail
Normally the specs I monitored in our temperature profiles are Slope 1-2 Deg C/sec, preheat 60 - 120 Sec at 120 Deg C - 150 Deg C, peak 215+/- 10 Deg C, above 183 Deg C is 45 - 75 Sec, total reflow is 3 - 5 minutes. Why is it that we don't monitor
Electronics Forum | Thu Jan 10 06:52:51 EST 2002 | Dreamsniper
I'm using Kic Profiler and aluminium tape from Kic and thermocouples from Kic. They are good and reliable. I even manage to modify my heller 1088 by adjusting the fix conveyor and re-baffling the oven. Had dropped my 20-22 deg. C delta T down to 4.3
Electronics Forum | Tue Apr 09 00:09:25 EDT 2002 | craigj
Question. When profiling and looking at the profiles cooling rate. Over what temperature range should the slope be monitored and what sort of cooling rates should be looked for. Paste supplier says no more than 6degC per sec, some components maybe lo
Electronics Forum | Wed Mar 07 02:34:10 EST 2001 | Cosine Theta
Strange? Can u explain why magnetized squeegee be a factor, not to mention rusty squeegee?
Electronics Forum | Wed May 03 10:18:43 EDT 2000 | Stefan Witte
Greg, at least on three different brand machines, I was working on, the offsets rotated with the board. If you start out at 0 deg. and the offset in the top left corner than it is on top right at 90 deg., bottem right at 180 deg. and bottem left at 2
Electronics Forum | Mon Mar 05 23:10:56 EST 2001 | flynhi34
Hi, I always thought 45 deg squeegee blades were the way to go for solder printing. What are everyones opinions? Does anyone think that 45 deg blades will help prevent solder paste from sticking on the squeegee blades since equal amounts of paste
Electronics Forum | Fri Dec 09 06:33:01 EST 2016 | cyber_wolf
Hold on Carlo, You are saying two different things, you are saying "(Zones 3,4,5,7 & even Cooling Zone). PV exceeds about 5-10 degrees with the SP. (ex: SP=140deg, actual PV = 145deg & higher). " Then you say: "the board reach up to 145 deg. 5 deg
Electronics Forum | Wed Jun 21 23:47:28 EDT 2000 | gary
my topside preheat is 97 deg. C and my peak temp. is 230 deg. C with a duration of 4 secs. What would be my Delta ? I suppose 230 minus 97 is equal to 133 deg C...is that right? regards
Electronics Forum | Wed Feb 04 09:44:47 EST 2009 | lococost
It's not a silly arguement. I'm guessing you are talking about wavesoldering? Think about holefill, The reason tin will not fully fill difficult holes is the temperature at the top is too low, it is below the melting point. Increase this melting
Electronics Forum | Fri Oct 12 16:01:23 EDT 2018 | davef
Feature||Class 1||Class 2||Class 3 Circular wetting of solder of the lead and plated hole barrel on the component side.||Not Specified||180 deg||270 deg Plated hole fill.||Not Specified||75%||75% Circular fillet and wetting of solder of the lead a
