Method for processing high elastic modulus polyethylene

Details Method for processing high elastic modulus polyethylene Method for processing high elastic modulus polyethylene

B - Operations, Transporting

29

C

18/959

B29C 55/04 (2006.01) B23P 25/00 (2006.01) B26D 7/10 (2006.01) D06H 7/00 (2006.01)

Patent

CA 1312183

ABSTRACT This invention is designed to facilitate machining operations, such as cutting or punching, by taking advantage of thermal properties of high elastic modulus polyethylene. Prior to the machining operations, high elastic modulus polyethylene is heated to a temperature not lower than the melting point of the crystalline fibrils so that the polyethylene of the heated portion revert to a state prior to superdrawing and becomes more readily machinable so that it can be subjected more easily to secondary machining.

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