Method for foming heat-resisting container and metallic mould for forming

Application Number: 00108744
Application Date: 1995.12.28
Publication Number: 1327911
Publication Date: 2001.12.26
Priority Information: 1994/12/29 JP 340514/1994
International: B29C49/48
Applicant(s) Name: Nippon-Seiki ASB Mechanics Co., Ltd.
Inventor(s) Name: Sato Koichi;Yokohayashi Kazuko;Tsuchiya Yoichi
Patent Agency Code: 11038
Patent Agent: he tengyun
Abstract A method of easily molding a heat-resistant container which has a heat-resistant bottom portion, including a steps of primary blow-molding for molding a preform into a primary molded article, a step of heat treatment for the primary molded article, and a step of final blow-molding for molding the primary molded article which has been subjected the heat treatment into a final container, and a mold used for the method. In the step of primary blow-molding a raised-bottom portion is formed in the primary molded article using a raised-bottom mold, and this raised-bottom portion is of substantially the same shape as a raised-bottom portion of the final container. The preform has sufficient heat for a complicated mold, which thereby allows a raised-bottom portion of some complication and with adequate heat-resistance to be formed without difficulty. The shape of the raised-bottom portion of the primary molded article is maintained, and using another raised-bottom molds, heat treatment and final blow-molding are carried out.