Electronics Forum: reflow and zcr and 4

Quad ZCR 941 and Lead Free?

Electronics Forum | Mon Jun 20 10:44:29 EDT 2005 | ??

I am sure you can reflow lead free in any oven but i thought i read that lead free requires a cooling stage to get the solder joints reflowed "correctly".

Quad ZCR 941 and Lead Free?

Electronics Forum | Mon Jun 20 10:59:18 EDT 2005 | Jason Fullerton

Extra cooling is better (Alpha recommends -3 to -7 degC/sec) for cosmetics. Less chance of s o called 'cooling lines' that look similar to 'cold' tin-lead joints. (Seems a bit steep to me - I worry about the risk of cracking ceramic caps.) Might be

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