Electronics Forum: melting and leadfree (Page 2 of 24)

Wave flux and profiling

Electronics Forum | Tue Dec 19 10:08:10 EST 2006 | George

Grant, Why don't you try a water-base flux which is No-clean, VOC-free also? I have tried the 270WR flux from AIM with good results even on lead-free process. My $0.02, George

Wave and Reflow Profiler

Electronics Forum | Tue Feb 19 07:44:41 EST 2008 | tonyamenson

So just to clarify.... If i bought a KIC 2000 I could run that one unit over both my waves and through both my ovens (leaded and lead-free)? Or would I need additional equipment to use it on the wave?

Re: Pb alloy reflow temperatures and component integrity

Electronics Forum | Tue Aug 22 16:02:07 EDT 2000 | Dr. Ning-Cheng Lee

If the thermal mass of the products is small, a tent-shaped profile is recommended, with peak temperature around 240C. The hottest spot on board should be less than 250C. However, if the thermal mass of the product is large, such as a large server PC

Wave flux and profiling

Electronics Forum | Tue Dec 19 16:26:24 EST 2006 | samir

Grant, Newer lead-free fluxes have 6%-10% solids content - more activator, therefore leave more "visible" residues. Old technology tin-lead fluxes got down to as low as around the 4%-6% range (I'm going off memory, so me might be wrong)... You'll

Wave and Reflow Profiler

Electronics Forum | Tue Feb 19 09:41:26 EST 2008 | slthomas

ECD sells the MOLE, and they sell both the Oven Rider and the Wave Rider to accompany it. The thing is, you can profile both an oven and a wave machine without either if you're willing to just solder your thermocouples to a board. The nice thing ab

0201 and Lead Free

Electronics Forum | Tue Dec 13 17:41:04 EST 2011 | davef

A Study Of 0201’s And Tombstoning In Lead-Free Systems, Phase II Comparison Of Final Finishes And Solder Paste Formulations http://sheaengineering.com/Documents/APEX%2008%200201s%20and%20Tombstoning%20phase%202%20paper.pdf CONCLUSION The condition

SAC305 and Selective Soldering

Electronics Forum | Wed Sep 18 14:12:40 EDT 2013 | pjchonis

Hello Bachman. SAC305 is the most common lead-free solder alloy, not only for wave soldering but also selective. Most of our selective customers (especially automotive) are using SAC305. What is more important than the alloy to consider is the flux

paste Sn42/Bi58 and Lead Finish

Electronics Forum | Wed Nov 14 03:26:38 EST 2012 | spopov

Ryan, in some cases we use 2 pastes with different melting temperature (LF SAC and PbSn)for complex boards with components on two sides. And we want to try to replace LF SAC with low melting paste.

Lead-Free Finish Boards and Components

Electronics Forum | Wed Jul 07 14:32:24 EDT 2004 | Tom B

We have done the same using a Red Mask instead of Green. Its definitely a good idea. It makes it easier to distinguish lead-free from lead assemblies. However, unless you are totally lead-free or two processes are isolated, it will happen that you

Lead-Free Finish Boards and Components

Electronics Forum | Wed Jul 07 13:56:57 EDT 2004 | Pierre RICHARD

As converting our boards to lead-free finish (Immersion White Tin) we decided to change de mask color from green to blue. We thought this would be a good idea to spread the idea so we could easily recognize the type of solder application related to t


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