Injection molding three portion gate and cavity insert

Details Injection molding three portion gate and cavity insert Injection molding three portion gate and cavity insert

B - Operations, Transporting

29

C

B29C 45/73 (2006.01) B29C 45/27 (2006.01)

Patent

CA 2228931

An injection molding one-piece gate and cavity insert with the gate extending therethrough which receives a heated nozzle and forms part of the cavity. The gate and cavity insert has a cooling fluid passage extending through it. The gate and cavity insert has an inner portion, an outer portion and a gate portion. The inner and outer portions which are in contact with the cooling fluid are made of a corrosion resistant material such as stainless steel. The gate portion which is not in contact with the cooling fluid is made of a more wear and heat-shock resistant material such as H13 tool steel or a tungsten carbide.

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