Patent Number: 6,169,272

Title: Nozzle heater for die casting machine

Abstract: A heater for the injection nozzle of a die casting machine includes a mounting block which is clamped to the nozzle and has a cavity for receiving an off-the-shelf electric cartridge heater. The mounting block includes a casing formed from a high strength material such as steel and a quantity of a second material having a high thermal conductivity such as copper encased in the casing. A hole sized to receive the injection nozzle is formed through the block and passes through the second material so that the second material forms a portion of the inner surface of the hole. The heater cavity extends into the block along an axis generally perpendicular to the hole such that the second material forms a portion of the inner surface of the hole. The quantity of second material connects the two holes and forms a heat conductive path between the heater receiving hole and the nozzle receiving hole.

Inventors: Racine; Donald C. (Grand Blanc, MI), Zsigo; John Joseph (Lennon, MI)

Assignee: Delphi Technologies, Inc.

International Classification: B22D 17/20 (20060101); H05B 003/06 (); H05B 003/58 (); B22D 017/02 (); B67D 005/63 ()

Expiration Date: 01/02/2018