Manufacturing method of hollow molded article touching high pressure hydrogen

摘要

SubjectProblem to be solved: to provide a method of producing a hollow molded product which is capable of contacting a high pressure hydrogen comprising a polyamide resin composition wherein cracking of the junction is suppressed even if the filling and releasing of the high pressure hydrogen are repeated.SolutionManufacturing method of hollow molded articleThe method of forming a hollow molded article in a die by die slide injection hot fusion molding methodThe hollow molded articleComposed of polyamide resin compositionFrom the surface of hollow molded products μ The average spherulite size in the inner portion of μ M or lessThe tensile strength of the specimen containing the joint of the hollow molded article isIt is characterized that the tensile strength of the test piece which does not include the junction of the hollow molded article is overManufacturing method of hollow molded article to touch high pressure hydrogen.No selection