Apparatus and improved method for lost foam casting of metal...

Details Apparatus and improved method for lost foam casting of metal... Apparatus and improved method for lost foam casting of metal...

2005-04-26

2005-04-26

Lin, Kuang Y. (Department: 1725)

Metal founding

Process

Shaping a forming surface

C164S235000, C164S246000

Reexamination Certificate

active

06883580

ABSTRACT:
An apparatus and method to delay the application of pressure on a molten metal front to equalize a pressure gradient present at the molten metal front during pressurized lost foam casting processes, or other pressurized casting processes. A pressure equalization member is placed over a pouring cup to divert the direct application of pressure to molten metal present in the pouring cup. The pressure equalization member allows for increased pressurization rates in such processes, facilitating interdendritic feeding while reducing microporosity and metal penetration defects.

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Web Site, www.eng.uab.edu/mte/about/research/xray, UAB Casting Engineering Laboratory, Feb., 2002.

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