Electronics Forum | Thu Mar 12 06:37:48 EDT 2009 | gregoryyork
I agree you are too cold for the profile get it up to 230C and possibly allow it to dwell a little longer in preheat as opposed to pushing up the reflow zone only. Sn90/Pb10 melts at 220C so 2C hotter than your profile so you are reliant on it alloyi
Electronics Forum | Fri Mar 06 16:17:38 EST 2009 | aj
whats your board finish?
Industry News | 2017-07-26 12:23:26.0
Count On Tools is pleased to announce that it has reduced pricing on the QWIKTRAY system from $699 to $499 each, with even lower prices on higher volumes. COT can provide these significant cost savings due to further development of the manufacturing process and reduced materials costs. The new pricing took effect July 14 2017.
Industry News | 2012-03-21 15:19:00.0
Seika Machinery has introduced its updated Web site at its existing Web address: www.seikausa.com.
Mx400L has an IPC 9850 speed of 42,000 CPH. It will accomodate a PCB size up to 26.77" x 18.11", it has 6 module heads on the front gantry, 6 module heads on the rear gantry. minimum lead pitch is 15mil, and it will place parts down to 01005 (0402 me
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). Over time, as this intermetallic layer grows thicker, it becomes the Achilles Heal of the solder joint in terms of integrity. Depending upon the stresses imposed on the assembly and the solder joints, this is what usually ultimately leads to joint cracking and failure
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