Casting solidification expansion materials

Details Casting solidification expansion materials Casting solidification expansion materials

2005-08-09

2005-08-09

Johnson, Jonathan (Department: 1725)

Metal founding

Means to shape metallic material

Pressure shaping means

C164S312000

Reexamination Certificate

active

06926065

ABSTRACT:
A mold that has an expandable mold cavity that is maintained at a first volume during an injection phase and expands to a second volume during the solidification phase to inhibit or prevent the formation of voids or cracks in a material that expands during the solidification process and a method whereby the pressure within a mold cavity during the solidification process is limited to inhibit or prevent formation of cracks or fissures in a cast article that normally expands during solidification.

REFERENCES:
patent: 4497359 (1985-02-01), Suzuki et al.
patent: 4932458 (1990-06-01), Iwamoto et al.

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