Electronics Forum | Mon Oct 14 07:51:15 EDT 2002 | cyber_wolf
Mike, we use a product called Dow Corning 321 dryfilm lubricant. BTU reccomends it. You can find it in Mcmaster Carr for about 21.00 a can. Mcmaster PN is 1255K14. I reccomend pulling the chain off when you are lubricating it to avoid over-spray. Th
Electronics Forum | Mon Oct 14 13:39:40 EDT 2002 | peterson
Hi all, I am doing some research on SMT machines. I would like as many people as possible to rate the following machines 1-5. The number 1 would be the best, number 5, the least desirable of the 5. I realize that there are dozens of factors to consi
Electronics Forum | Mon Oct 21 17:36:44 EDT 2002 | rubenh
Hi I have work with different brands Fuji, my data, quad, Panasonic. In my experience as a programmer/operator/maintenance (trouble shooting). After working with OEM and CM. I still like Fuji over the other brands Customer support: Fuji
Electronics Forum | Thu Nov 14 17:57:34 EST 2002 | jonfox
Even though I don't use them, the 3 Topaz Xi's. On larger runs, you could split the workload across all three at one time or run three different jobs(assumming feeder requirements) on the three machines. Even though you could possibly achieve highe
Electronics Forum | Mon Oct 14 15:48:37 EDT 2002 | pjc
If you are concerned with the actual temp of your pre-heater verses what the machine's display "says" the temp is, use a calibrated digital thermometer and place the thermocouple probe inside the pre-heater and next to the machine's thermocouple for
Electronics Forum | Mon Oct 14 18:27:38 EDT 2002 | kennyg
In regards to baking an assembly prior to hot air (BGA) rework.... 1) Do people always bake, sometimes or never? Does this depend on whether MS sensitive components are near the rework site? If a BGA is to be removed and reballed, baking is a no-br
Electronics Forum | Wed Oct 16 13:16:11 EDT 2002 | davef
Hey Mar, Sounds serious!!! Poke around Buehler, Leco, or Struers Try IPC TM-650 Test Methods Manual: 2.3.6A Etching, Ammonium Persulfate Method - 7/75 2.3.7A Etching, Ferric Chloride Method - 7/75 2.3.7.1A Cupric Chloride Etching Method - 12/94
Electronics Forum | Thu Oct 17 21:32:28 EDT 2002 | davef
Please help to clairify the problem. Are we talking: * A pre-reflow [placement] problem? * A post-reflow [solder wetting] problem? Is the wetting issue that you mention related to the board or to the component? Please give us a little more detail
Electronics Forum | Fri Oct 18 13:36:27 EDT 2002 | nwyatt
Sounds like you are a CM. In that case, I would suggest that you do profile every new product that comes through the door as a way to cover your a** to your customers. In the offchance that your customer requests to a see a copy of your oven prof
Electronics Forum | Mon Oct 21 18:31:45 EDT 2002 | MikeF
Mike, If your wave solder machine doesn't have enough preheat capacity you can put the board in an oven and warm it part way before you put it into the wave solder machine. This works best with a spray fluxer, as a warm board will collapse the foam
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