Letting flow the fluid channel equipped formation die and its production mannered null

摘要

PROBLEM TO BE SOLVED: To provide a molding mold with a passage for fluid for adjusting temperature which can form the fluid circuit of an optimum pattern at a low cost corresponding to a molding and a method for producing the molding mold. ;SOLUTION: The molding mold 10 has at least two members 20 and 30 arranged coaxially inside and outside to overlap each other and end members 40 and 50 which are arranged adjacently to both ends of the two members and joined to the end faces of the members. A channel 25 for forming fluid passage for passing fluid is formed at least in one of the outside surface of the inside member and the inside surface of the outside member. At least one of an inlet 26 and outlet 26' each communicating with the channel is formed at least in one of the end members. The members and the end members, after being bonded provisionally to each other by a pulse voltage application welding method, are heat-treated to be joined completely. At least one of molding cores 60 and 70 for partitioning the cavity of the molding mold is inserted attachably/ detachably into an axial hole formed in the inside member.;COPYRIGHT: (C)2003,JPO