Electronics Forum | Sun Oct 16 04:23:20 EDT 2005 | olas
I have a couple of questions about the SMEMA conveyor (standard 1.2); I posted the question to them but had no answer. SMEMA says: 5) Maximum gap. The maximum gap between the in-line machine track ends is 0.375� I would suppose this gap refers to th
Electronics Forum | Fri Dec 15 05:02:42 EST 2000 | SaiWong
It is not gonna work. Even though you fine tuned the CP3. 0603 is the maximum. The camera design is only for the 0603 maximum. If you use it for 0402. I think at least 60% of the component are gone. Also, there is no 0802 feeder for the CP3. How can
Electronics Forum | Tue May 28 14:01:09 EDT 2002 | zanolli
Hello Sally, The force required for press fit connectors will vary depending on the connector type. The force will also very significantly from one supplier to another for the same connector. To give you an example; for a .100" DIN 41612 connector
Electronics Forum | Tue Nov 14 19:59:22 EST 2006 | wchang
Heller 1800S Convection Reflow �� 1996 - 97 vintage �� Dimensions: length 150��, width 53", height 63", �� Number of forced convection zones - top 9, bottom 8 �� Cooling zones: 2 �� Conveyor width (m
Electronics Forum | Tue Feb 27 10:19:06 EST 2007 | Michael Konrad
If you�re running chemistry in the wash, the wash temperature will be influenced by the chemical manufacturer�s recommendations. Typically, wash chemistries recommend operating temperatures between 130F and 150F. If your application is straight D
Electronics Forum | Wed Jun 27 11:59:55 EDT 2007 | samir
*Preheat zone *Maximum slope is a time/temperature relationship that measures how fast the temperature on the printed circuit board changes. The ramp�up rate is usually somewhere between 1.0 �C and 3.0 �C per second, often falling between 2.0 �C and
Electronics Forum | Tue Aug 28 06:17:11 EDT 2007 | jgrootkoerkamp
I have problems with blowholes during the wave soldering process. I already find out that the stock time between reflow and wave is the most important. The longer the boards are in stock the more blowholes we have. We don't have a climat controlled
Electronics Forum | Thu Jul 31 23:07:55 EDT 2008 | davef
J-STD-006 lists maximum contamination levels for most solder alloys. This is the basis for purchasing solder. The SOLDER BATH contamination levels in J-STD-001 are based on decades of experience. But these contamination thresholds of various metals
Electronics Forum | Mon Nov 24 07:36:15 EST 2008 | davef
No, but we find discussions about relative humidity fairly short sighted, because relative humidity is such an imperfect measure of the amount of moisure in the air. Dew point is much more appealing. R.H. = (amount of moisture)/(maximum amount that
Electronics Forum | Wed Dec 08 09:53:23 EST 2010 | fönsi
Hello Because of the cold weather, we had some troubles with drying out of printed solder paste on the pcb's. The relative humidity in the air declined below of 20%. We have a process window of store the printed board for maximum 24 hours, but with
