Electronics Forum | Tue Feb 19 10:50:13 EST 2019 | rgduval
Call Heller directly, and give them the oven, and relative thermal density of the board, as well as the solder paste that you're using. They'll be able to give you a baseline profile to start from (both RTS and RSS). Otherwise, use a thermocouple p
Electronics Forum | Thu Sep 13 17:57:59 EDT 2001 | davef
You're correct. It is curious. Possible angles to look at are: 1 WS609 loves moisture in the air. In high humidity shops, this paste hakes-on liquid. If this is the case, you should also see slumping, resulting in fine pitch bridging, and solder
Electronics Forum | Wed May 29 02:01:10 EDT 2024 | kumarb
No direct experience with these parts but to me, the air flow from top side fans are creating a wind tunnel that is causing the smaller parts to fly. Can you adjust the speed of these fans? Review the paste - review the component mount height. We fac
Electronics Forum | Wed Jan 05 17:56:26 EST 2000 | Dave F
Glenn: Greg's comments about Heller ovens are well taken. Heller sells more ovens than anyone. Beyond his and others general comments, you should be aware of concerns about buying used equipment. Suggestions are: 1 Check the temperatures of conc
Electronics Forum | Tue Dec 09 15:43:01 EST 2014 | sreejhu
Hello Folks, I am getting a Passaat SMRO-0406 reflow machine for auction. So i would like to know is this machine good or bad for doing the lead free re-flow process. The vendor said this machine is 2000 model. We wanted to do the board with size -
Electronics Forum | Mon Feb 13 09:55:25 EST 2006 | fredericksr
Thanks everyone, I have found your postings very helpful for reflow ovens and intend to review my reflow calibration and validation, but in this particular instance I should have been more specific. We use the non conveyorized type of oven (Ten
Electronics Forum | Wed Mar 03 18:42:29 EST 2010 | 89jeong
Hello Graham Copper. Thanks for yr comment. I will review the pad size and component placement with our engineer. It looks that the placement of lead is wrong. But what i want to hear from you is about solder lump on the right.As you can see, the sol
Electronics Forum | Fri Apr 30 10:39:15 EDT 2004 | Bryan She
I found much ICT fails on the same location(Ref.des:Q166) on my boards. 1.Defects rate:more than 20%. 2.We measured the value of the transistor before reflow oven,it's ok.but measure again after been reflowed,result is fail.it seems fails happen duri
Electronics Forum | Wed Sep 19 00:03:39 EDT 2007 | bkgsmtnet
http://www.madelltech.com/m2-13.html Will they do lead free? How do they perform? Quality? etc.. Thanks, b
Electronics Forum | Wed Sep 19 13:44:46 EDT 2007 | russ
probably need to find out who really makes these ovens. This Madell company looks to be a reseller. personally I am very wary of these types of arrangements Russ
