Electronics Forum | Tue Nov 27 16:18:34 EST 2001 | MikeF
Can anyone give me a brand name on a chair with casters that only rolls when it has weight on it? A couple of jobs ago we had chairs for the operators that would only roll after someone had sat down, that way they would not roll away while someone wa
Electronics Forum | Wed Dec 12 07:38:04 EST 2001 | smtspecialist
I have observed the same thing with solder composition in this case I am using 63/37 NC which is giving good results usualy. The liquid tin, product from MG Chemical that I used is to tinplates copper circuit on PC boards. I tried on few relays, it
Electronics Forum | Fri Dec 07 13:15:45 EST 2001 | slthomas
We've experienced similar problems with film caps, specifically Panasonic's parts that are alledgedly compatible with both reflow and wave soldering. They are identified with either GB or JB p/n suffixes, which become either GX, GC, or JC for the ref
Electronics Forum | Mon Dec 24 01:43:34 EST 2001 | sanmatech
Recently started running flex board with tin lead connectors. The problem being that when we receive the parts incoming connectors are all bright and shiny. Now after going thru the heller we encountered cold solder. At this time peak temp was at 186
Electronics Forum | Thu Jan 03 08:02:53 EST 2002 | davef
Slump is a function of the particular paste you select and the temperature of the paste. Use a slump test like the one that follows to compare fluxes. Slump Test Step Process activity 1 Print paste on white ceramic substrate or microscope sli
Electronics Forum | Fri Jan 04 17:15:54 EST 2002 | Mike Konrad
Eliud, You will most likely not find a local Culligan / US Filter office willing to provide regeneration services. The most cost effective method is to use DI tanks that are user refillable in the field. With user refillable tanks, you need only e
Electronics Forum | Thu Jan 17 20:33:05 EST 2002 | ianchan
Hi, Can anyone help explain the benefits/disadvantages of bareboard pcb baking, as part of the pre-heat conditioning, before the bareboard pcb use in SMT production run? The pcb board is 200mm x 240mm panelized pcb board, and has 28 smaller pcb boa
Electronics Forum | Sat Feb 02 23:16:17 EST 2002 | caldon
STIMPMAN- Dave is correct Teflon has to be going somewhere. Solder is also expensive and to be dragging it around the fingers on your machine is not cheap either. (I am sure Debbie could recomend a reclain system ). Some times the pain is either fron
Electronics Forum | Wed Jan 30 08:30:33 EST 2002 | seto
Hello Dave, Mechanically the conection between the component pad and PCB pad is good (the solder joint is very strong). The problem is associated with poor contact after the use by the customer (vibration, temperature, etc). You can see the pictures
Electronics Forum | Fri Feb 15 13:24:44 EST 2002 | Mike Konrad
Hi Dave, To close-loop or not to close-loop, that is the question� I can not speak for all machines, but in our case, close-loop systems are actually less costly to operate than open-loop systems (we make both). First, determine the volume of wate
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