1. Cut off 5-10cm of the protective film before inserting pc sheets to the support frame , because the protective films would cause inefficient adhesive between tamping and pc sheets.
2. Since the expansion and contraction degree of pc sheets, are different from that of medal frames, as well as pc sheets
are flexible and taking air pressure, therefore, approapriate
insertion, reserving space for expansion and shrink because of
temperauture changes, and choosing suitable thickness of pc sheets are
necessary. General plate should be inserted into fixed frame for over 25
mm, with at least 2 ribs installed into the fixed zone,3mm place will
be reserved for expansion or shrinkage.(expansion ratio:0.065mm/moC)
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