Method of producing an injection moulding tool

Details Method of producing an injection moulding tool Method of producing an injection moulding tool

1987-09-14

1989-01-31

Jordan, M.

Metal fusion bonding

Process

With shaping

228161, 228193, 249 78, B23K 112, B23K 104, B29F 103

Patent

active

048010685

ABSTRACT:
An injection moulding tool with optimum temperature distribution as the result of an improved tempering duct system is obtained if the tool inserts (10, 11) are each made up of two or more plates, tempering ducts (12, 12', 12") are worked in from the external faces (F1, F2, F3), on which the parts are subsequently joined by the diffusion welding method. An injection moulding tool for VHS reel hubs produced by this method produces moulds for injection moulding with substantially reduced wobble and a reduced cycle time.

REFERENCES:
patent: 4269586 (1981-05-01), Ronayne
patent: 4275864 (1981-06-01), Richards
patent: 4412805 (1983-11-01), Morrison
patent: 4486934 (1984-12-01), Reed
patent: 4648546 (1987-03-01), Gellert

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