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  • Users: FrankSmith
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  1. FrankSmith

    Flatness measurement

    I am looking for a way to measure steel plates flatness. The plate is 3'X 5' and is approximately 2 inches thick. I believe that the plate is slightly concave on one side. Is there any instrument I can use to get an exact meamsurement? I have already used a a straight edge.
  2. FrankSmith

    PTFE BEHAVIOUR

    We have recenty done some work laminating 4 mils of PTFE film to roughened (240 grit) copper plates in a high temperature press (380 deg C). When we cut the now laminated product from 3'X3' sheets into panels of 1'X1' with a saw the edge of the panel show excellent adhesion between the copper...

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