Quote:
Originally Posted by tom walker
Kent, thanx for the response, I was just trying to do the least amount of trauma to this panel and exercise the maximun control. My first attempt, I use a heat gun and turned the flange a medium brown color. It was too slow and uneven, my next attempt I used a shrinking disc, the flange heated up to a blue color (500+ degrees?), the flange shrunk and most of the distortion was removed from the panel.
Attachment 48667
Attachment 48668
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Hi Tom,
Lowest heat for shrinking sheet of thickness <.063, that I have successfully tested for, is no color but when the sheet has swelled to its max.
You can see the various heat colors -I hope - in this chart, below. The purp-blue is one of my favorite low-temp colors, for hot shrinks on mild steel. (Helps a lot of your color-perception is good ...
)
Low temp color chart.pdf
Hope this shows up ...