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July 1998

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Subject:
From:
Angie Marques <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 10 Jul 1998 10:54:07 -0400
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text/plain
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text/plain (28 lines)
Hi techies,
We just purchased a new oven (Heller 1900w) it is 12 zones.  We are not
using the first two zones only using 10. The machine set up is
80,100,110,120,140,150,170,175,230,265 and conveyor at 65. The profile
looks good, peak temp at 220, max rise at 2/sec total time above is
between 50 and 60 sec. My problem is when the board exit the oven they
are very hot! I mean these things are flexing, is this normal for a 12
zone reflow oven or are we doing something wrong?

Any help would be appreciate
Thanks
Angie
Quadrus
Sr Process Engineer
[log in to unmask]

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