Electronics Forum | Tue Feb 17 13:47:33 EST 1998 | Chrys Shea
| I am currently evaluating some different reflow ovens | for a future purchase. The manufacturers we are | looking at are Conceptronic, BTU, and Heller. Any | feedback on these manufacturers would be welcome. | I am particularly interested in: | 1
Electronics Forum | Fri Oct 05 08:35:52 EDT 2001 | Hussman
Hey Steven, Achieving the proper profile like you described does require you to engineer proper conveyor speeds and zone temps. Most conveyorized ovens have the inside of the ovens divided into zones. Each zone has a top and bottom heater that can
Electronics Forum | Thu Jan 24 09:53:56 EST 2002 | davef
You didn�t tell us about your solder, wave temperature profile, or the distribution of the problem. So, let�s assume the solder is near eutectic and the problem is wide spread. Wolfgang makes good points. So, let's talk a different tact. When we
Electronics Forum | Fri May 31 16:16:42 EDT 2002 | Ozzy
Does Fuji even make the QP-132 anymore? I have not seen it at Apex for the past 2-3 years. This "inflexible" dinosaur was a commercial disaster for Fuji. Philips/Assembleon has sold countless more FCM than Fuji QP-132. The problem with both machines
Electronics Forum | Fri Sep 06 14:35:47 EDT 2002 | bobm
I have been in smt for about 4 yrs. I would say you need to evaluate what type of components you are going to place. How many boards your orders will be for. I use Quad pick and place equipment. These are all around good machines for placing everythi
Electronics Forum | Thu Sep 12 15:58:02 EDT 2002 | stepheno
It's been years since I worked with a Fuji. I only once resorted to the undocumented part class 255 (or whatever they call it) and that was when I was working midnight shift. The smaller nozzle working better than the larger nozzle makes me wonder a
Electronics Forum | Thu Dec 12 09:21:42 EST 2002 | blnorman
What we did: *Slump-dot diameter and height as a function of time *Print Speed-Vary speed, measure slump and missing/defects *Green Strength-We quantifiably measured tack vs time and we placed components and measure skew by SVS *Cure profile sensitiv
Electronics Forum | Wed Dec 18 15:38:59 EST 2002 | swagner
I have had a similar problem in the past, since I have never worked with a semiautomatic printer there could be a few things I recommend that will not work for you. 1. Make absolutly sure that you have proper support under all of the BGA's. 2. Print
Electronics Forum | Mon Mar 03 09:16:09 EST 2003 | msivigny
Hello martys, The critical variables to measure print process capability on any printer are its ability to securely clamp a board, accurately align the board to its mating stencil, print with appropriate squeegee pressure and follow print material gu
Electronics Forum | Wed Jun 11 08:23:50 EDT 2003 | rmurtuza
I am running A Universal Chip shooter 4792 HSP machine. I would like to know the optimum speeds this machines can be run at. I am currently running the machine at a tact time of 18S-14S depending on the types of components and the complexity of the b
