Electronics Forum | Wed Dec 17 03:26:17 EST 2003 | Kev
Hi Lads, Thanks for all of the replies. To answer a few of your questions..... My wave is a Hollis PT500N. It has 3 zones of pre-heater rod elements. Each individual element (601195-01) is 500 watts. There are 16 elements per zone so 8 Kw per zone.
Electronics Forum | Tue Mar 02 22:40:52 EST 2004 | pdeuel
To clean up other replys I will add that some most all machines have global correction. Most placements are an off sets from pcb 0,0 usually the lower left corner of the board. When the machine locates the fiduitals and these fids are not exactly whe
Electronics Forum | Tue Feb 01 12:43:39 EST 2005 | jbrower
Hi Scott, My Heller is a bog standard Heller 1500 with an edge guide. There is nothing special about it. I would of course love to have a 7 zone oven, but...I have to use what is here at this time. My only concern with a 5 zone oven is the change i
Electronics Forum | Wed Feb 09 21:41:49 EST 2005 | Grant
Hi, We have been running the same stencils for about a year, 5 thou thick, 1-mm pitch BGA's and every-things been ok, but then suddenly over the last week, 2 different products have had paste release issues with the BGA. It's odd because nothings c
Electronics Forum | Thu Mar 03 16:41:11 EST 2005 | davef
According to an on-line posting ... SMTA On-line Presentation Comparing Industry Standard Revisions March 9: IPC-A-610 with Regards to Lead-free Technology There have been extensive and significant changes to the industry standard IPC-A-610 with th
Electronics Forum | Thu Aug 25 15:18:43 EDT 2005 | manish
Don, I have experienced the same thing as Russ. The fixed head systems do give the best uniformity (due to no overlap). Both Nordson and Sono-Tek offer fixed head machines that work excellent. I think the Sono-Tek system that Russ is refereeing t
Electronics Forum | Wed Aug 24 10:07:56 EDT 2005 | stepheniii
I think where the fuzzy thinking starts is by calling the recipe's; profiles. Or maybe I"m being too fussy. Idealy you want every solder joint to have the same thermal "profile" (not recipe). That is the temperature over time is best if identical fo
Electronics Forum | Tue May 02 11:05:38 EDT 2006 | grantp
Hi, Who cares, lead free is not going away, and unfortunately that "lets just hope lead free goes away" attitude has permeated a lot of US based suppliers, and now we are in real trouble, because parts availability currently is a total mess. It see
Electronics Forum | Thu Aug 17 09:38:28 EDT 2006 | pjc
Having the last two zones at the reflow temp (spike) is typically done on long ovens (10 zone) running at high conveyor speeds. This enables you to achieve peak temp and TAL as per the solderpaste specs at high production rates. Concerning reverse sp
Electronics Forum | Fri Sep 15 14:48:31 EDT 2006 | russ
we do get many strips kitted to us on floor, tough one to really handle but we do something like this, if the strip has 20 parts left on it, we usually chuck it, unless e know that the next build will use 10 or something and we can get it onto feede
