METHOD FOR MANUFACTURING ENDLESS BELT AND METHOD FOR CORRECTING DAMMING MEMBER

摘要

PROBLEM TO BE SOLVED: To correct a damming member contracted after use to reuse the same in the manufacturing of an endless belt. SOLUTION: A pair of new damming members comprising PTFE are set to the cylindrical inner peripheral surface of a centrifugal mold in a close contact state and a molding cavity is formed by these damming members and the cylindrical inner peripheral surface of the mold and a resin liquid is injected in the molding cavity to obtain the endless belt according to a usual method. The damming members 2 are recovered from the mold to be inserted in a correction jig 11 consisting of a first cylindrical part 11a, a taper part 11b and a second cylindrical part 11c and heated to 100 deg.C or higher in a heating oven to make the inner diameter of each of the damming members almost equal to the outer diameter of the second cylindrical part 11c. The correction jig is taken out of the heating oven and allowed to stand to be cooled to room temperature as it is and the damming member is stabilized in such a state that the inner and outer diameters of each of them become almost same to those of the new damming member. The damming members are reused to again mold the endless belt of high quality.