Electronics Forum: 4h- (Page 1 of 2)

Support for VC-4H radial machines

Electronics Forum | Wed Aug 27 11:38:43 EDT 2003 | samaniegocesar

Hello to all, I would like to know if some of you know where can I get spare parts for TDK Radial insertion machine VC-4H or if you know some web page handling support for this kind of machines, I will apreciate any information and support received.

Support for VC-4H radial machines

Electronics Forum | Wed Aug 27 21:03:03 EDT 2003 | davef

What does TDK [ http://www.component.tdk.com/fa/factoryautomation.html ] say?

Solder Paste

Electronics Forum | Thu Jul 07 07:49:42 EDT 2005 | mmjm_1099

AMTECH NWS-4200-4H3 is the best I have come across for a leaded process. As for lead-free I did some studies and we liked the Indium 3.1 and 5.1.

baking out pcbs after reflow process

Electronics Forum | Thu Jul 12 02:15:53 EDT 2012 | thmeier

Check also the specs / recommendations of your PCB manufacturer. We bake boards 4h/120°C before reflow and after automated cleaning (it´s not FR4!) and also if we have to rework with the autometd rework- stations (massive IR underheating ,..). Regar


Electronics Forum | Wed Aug 23 11:06:33 EDT 2006 | cyber_wolf

Chunks, I figured you would know about O rings. :/ Try these... http://www.callapg.com/orings.aspx?id=standard&sitrackingid=530036&kc=E1HvV4hZ7kYxr863lQqmwGDECdagjxzxvO8ZvgjH Mcmaster Carr also sells O ring splicing kits.

0402 Cap tombstoning strange behaviour

Electronics Forum | Thu Nov 04 04:27:46 EDT 2010 | d0min0

thanks for all the feedback... we also checked, just in case : - bake the components (no visible improvement) - bake the pcb (50% less tombstone components) - finally we changed LF paste to completely different manufacturer - and booom 0 (zero) tombs

Dirty Reflow owens.

Electronics Forum | Mon Feb 04 08:32:12 EST 2008 | jola

Thanks for your replys but I can't figure out why this problem is so much bigger in one owen when we run nearly the same mix in both our lines and we use in 99% of the production only the same 2 different pastes, lead and leadfree. The pastes we use

How long does it tkae for Tin-Lead solder to rust if put outside

Electronics Forum | Thu Sep 27 23:24:22 EDT 2007 | mika

Fe2+(aq) + 2e- "harply, but this is of no consequence since OH- ions are always present, even in pure water.) The cations then react with the OH- or even the H+ ions and dissolved oxygen to form a variety of compounds, which constitute rust: Fe2+(aq

Skewing of parts

Electronics Forum | Tue Jul 20 12:49:38 EDT 2004 | mmjm_1099

We are having a problem with our Heller 1800W oven with certian parts skewing. It seems that some inductors and taller Can caps are shifting around in the oven. It seems it will solder fine and than all of a sudden just be off to one side or the othe

Need help on selecting the SMT equipment for small volume

Electronics Forum | Wed Jul 20 12:48:50 EDT 2005 | danhui888

Dear All, I'm looking for the complete SMT > equiment line (solder printer, P&P, Reflow) uses > for the small volume production line. I happen to > know that Manncorp and APSGold can provide the > complete ST line, but I haven't hear and use > t

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