B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 43/12 (2006.01)
Patent
CA 2191010
A method of pressure molding a material into a desired shape comprises placing the material in a hollow mold form, wherein the mold form provides, at one end, a mouth for receiving a pressurizing unit, said unit comprising a resilient pouch capable of being inflated under pressure, inserting and securing the pressurizing unit in the mouth, and inflating the pouch using a pressurizing agent such that the pouch forces the material against the interior of the mold form thereby transferring the shape of the mold form to the material.
Cette invention concerne le moulage sous pression d'une matière à la forme voulue, selon un procédé qui comprend les étapes suivantes : mise en place de la matière dans le creux d'un moule comportant, à un bout, un orifice de raccordement d'unité de mise en pression, ladite unité comprenant une vessie gonflable, insertion et verrouillage de ladite unité dans l'orifice de raccordement, gonflage de la vessie de manière qu'elle repousse la matière à mouler contre les paroi du moule et assure le transfert de l'empreinte du moule à la matière à mouler.
Ben-Oliel Susan M. M.
Nakayama Engineering Co. Ltd.
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