PROCESS FOR PRODUCING FLUORORESIN-COATED ROLLER OR BELT

摘要

PROBLEM TO BE SOLVED: To provide a fluororesin-coated roller or belt which can form a fluororesin-coated layer thermally fusion-bonded directly on a base or via a rubber layer by heat-treatment for an extremely short time, hardly produces defect on a fluororesin-coated layer and can suppress thermal deterioration of the rubber layer existing in the lower layer.

SOLUTION: A process for producing a fluororesin-coated roller or belt includes: a step of inserting a rubber-coated base made by forming at least a rubber layer on a base or the outer circumferential surface of the base into a hollow of a heat-shrinkable fluororesin tube; a preliminary shrinking step, as necessary; a pressure fusion step of rotating the base or the rubber-coated base while causing the base or the rubber-coated base to contact with a hot plate surface heated to a temperature in the range of 250 to 400°C, and thermally fusion-bonding the heat-shrinkable fluororesin tube onto the outer circumferential surface of the base or the rubber-coated base; and a reheating step and a rapidly cooling step which are optional.

COPYRIGHT: (C)2011,JPO&INPIT