Heat exchange apparatus for a metal mold

Details Heat exchange apparatus for a metal mold Heat exchange apparatus for a metal mold

2006-01-31

2006-01-31

Heitbrink, Jill L. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

Controlling heat transfer with molding material

C264S328160, C425S144000, C425S548000, C425S552000

Reexamination Certificate

active

06991756

ABSTRACT:
A heat exchange apparatus for a metal mold is provided, which includes a heat exchange passage provided for the metal mold, a first supply unit for supplying hot heat carrier to the heat exchange passage and a second supply unit for supplying cold heat carrier to the heat exchange passage. The heat exchange apparatus performs heat exchange for the metal mold by supplying the hot heat carrier and cold heat carrier to the heat exchange passage switching alternately. And the heat exchange apparatus has a feature that it includes an air supply unit for supplying air to the heat exchange passage so that the heat carriers are purged when the hot heat carrier and cold carrier are switched.

REFERENCES:
patent: 4548773 (1985-10-01), Suh et al.
patent: 5725891 (1998-03-01), Reid, Jr.
patent: 03-244512 (1991-10-01), None
patent: 2001-009839 (2001-01-01), None

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