METHOD FOR MANUFACTURING FIXING MEMBER

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method for improving the bending crack resistance of a PFA tube in the PFA tube coated fixing member by extrusion molding.

SOLUTION: The method for manufacturing the fixing member includes a reformed method for the PFA tube which applies heating treatment in such a state that the PFA tube is expanded circumferentially and longitudinally. The orientation degree of the PFA tube is reduced by the heating treatment, and the bending crack resistance is improved by increasing a crystallinity degree.

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