Patent ID: 8911576

Claim:
A method for producing a fluororesin-coated roller or belt that includes a base member having an outer peripheral surface having a circular cross-section taken in perpendicular to a central axis extending in a longitudinal direction and a fluororesin layer disposed directly on the base member or on a rubber layer on the base member, the method comprising: (1) a step of inserting the base member or a rubber-coated base member prepared by forming at least a rubber layer on an outer peripheral surface of the base member into an empty space of a thermally shrinkable fluororesin tube having an inner diameter larger than an outer diameter of the base member or the rubber-coated base member; (2) a pressure fusion-bonding step of bringing the base member or rubber-coated base member into contact with a hot plate surface heated to a temperature in a range of 250° C. to 400° C. under pressure while rotating the base member or rubber-coated base member so as to fusion-bond the thermally shrinkable fluororesin tube onto the outer peripheral surface of the base member or the rubber-coated base member; (3) a reheating step of heating a fluororesin layer formed of the thermally shrinkable fluororesin tube fusion-bonded to the outer peripheral surface of the base member or rubber-coated base member to a temperature equal to or higher than a melting point of a fluororesin constituting the fluororesin layer; and (4) a rapid cooling step of cooling the fluororesin layer at a rate of 200 to 600° C./min.