MANUFACTURE OF PRESSURE BAG FOR INTERNAL PRESSURE MOLDING

摘要

PROBLEM TO BE SOLVED: To obtain a pressure bag in which the thickness can be adjusted optionally in a longitudinal part, the position of expansion caused by the change in wall thickness of the pressure bag can set optionally, and a blowout, air sealing, etc., do not occur. SOLUTION: A rod-shaped mold is immersed in a reaction liquid 36 which coagulates latex 34, and a part of more adhesion of a coagulation reaction substance and a part of less adhesion of the substance are formed according to designed values. The mold is inserted into the latex 34, more latex 34 is reaction-coagulated in the part of more adhesion of the substance, and less latex 34 is coagulated in the part of less adhesion of the substance to adjust the wall thickness.