Electronics Forum | Tue Feb 14 07:20:42 EST 2017 | mikekeens
That's one way of testing for UL94!
Electronics Forum | Tue Oct 11 09:30:17 EDT 2011 | davef
UL746 Standard for Polymeric Materials is used for testing plastic enclosures used in electronic assemblies. Look here http://www.ul.com/global/eng/pages/corporate/contactus/faq/industries/plastics/ We're unaware of UL involvement in solder. Bare b
Electronics Forum | Thu Nov 28 09:51:37 EST 2002 | davef
I got here before the experts did. Underwriters Laboratory Incorporated is an organization located in the United States and is purely concerned with product safety performance. UL operates laboratories for the investigation of materials, products,
Electronics Forum | Fri Nov 30 15:23:03 EST 2007 | jdumont
The hot melt is prob the only way to go for that size gap. If you could decrease that gap I would suggest using 3M Scotchweld DP100FR. Check it out. We use the duo pak cartridges and mix nozzles with the gun. Very simple use and works great in our ES
Electronics Forum | Mon Jul 10 04:16:03 EDT 2006 | dougs
Hi, We have a new product coming soon that has a fair number of PTH sockets and headers. I was thinking that it would be good to use intrusive reflow on some of them to even up cycle times between SMT and hand insertion, however, when i called t
Electronics Forum | Wed Oct 18 16:41:35 EDT 2000 | Dave F
It's unrealistic to think that two materials with the following disperant properties would have the same reflow profile. From http://www.norplex.com/Carrier.htm Physical Properties / NEMA FR-4 / NEMA CEM-1 Glass transition temperature �C / 130 / 10
Electronics Forum | Tue Sep 12 12:43:26 EDT 2017 | deanm
50) traces. The design will be tested for safety and a file will be created listing all the critical components such as transformers, relays, wiring, enclosure material, etc. On the manufacturing side, a manufacturing facility must be indicated in
Electronics Forum | Fri Mar 11 18:30:50 EST 2005 | davef
Russ: In December 2003, the European Commission released the following statement: �The commission services have prepared a draft Commission decision establishing maximum concentration values pursuant to Article5(1)(a) of Directive 2002/95/EC. The pr
Electronics Forum | Mon Apr 12 19:28:26 EDT 1999 | Tom B
Netters, When I reflow a PCB there is a discoloration of silkscreen and mask. It appears if Profile is too hot! But I dont think so, maybe I'm wrong? 1. Kester 293 no clean 2. 2.1 C/s for 30s to 150 C 3. .5 - .7 C/s for 60s to 185 C 4. 1.5 C/s u
Electronics Forum | Tue Apr 13 18:11:00 EDT 1999 | Jimmy Strain
| Netters, | | When I reflow a PCB there is a discoloration of silkscreen and mask. It appears if Profile is too hot! But I dont think so, maybe I'm wrong? | | 1. Kester 293 no clean | 2. 2.1 C/s for 30s to 150 C | 3. .5 - .7 C/s for 60s to 185
