Casting method

Details Casting method Casting method

1986-02-19

1987-12-08

Jordan, M.

Metal founding

Process

Shaping a forming surface

164 45, 164246, B22C 702, B22C 904

Patent

active

047112875

ABSTRACT:
A consumable pattern of an expanded polyolefin resin and a bulk density of 0.025-0.012 g/cm.sup.3 is embedded in a mold body, a gating system leading to the pattern is formed in the mold body, and molten metal is poured into the gating system to volatilize and replace the pattern. The polyolefin resin is selected from noncrosslinked polypropylene resins, crosslinked polypropylene resins, crosslinked high-density polyethylene and mixtures thereof.

REFERENCES:
patent: 3339620 (1967-09-01), Krzyzanowski et al.
patent: 3374824 (1968-03-01), Snelling
patent: 3426834 (1969-02-01), Jacobs et al.
patent: 4291739 (1981-09-01), Baur
Fonderie, No. 36, Jun.-Jul. 1984, pp. 44-47.
Metallurgical Science and Technology, Jun. 1983, pp. 14-31.

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