Process for producing ductile iron casting

Details Process for producing ductile iron casting Process for producing ductile iron casting

1975-02-21

1976-06-29

Shore, Ronald J.

Metal founding

Process

Shaping liquid metal against a forming surface

75130R, 148 35, B22D 2720

Patent

active

039659623

ABSTRACT:
A process for producing sound ductile cast iron crank shafts without the use of chillers and also with no, or substantially no, blind risers at the upper ends of the cast crank shafts in the bottom gating-type of vertical pouring system. The process comprises pouring a specifically treated ductile cast iron melt having a high outward expansion property during its eutectic solidification into a specific metal mold assembly having a high rigidity and a high thermal conductivity.

REFERENCES:
patent: 1597861 (1926-08-01), Meloche
patent: 2324322 (1943-07-01), Reese et al.
patent: 2352408 (1944-06-01), Reece et al.
patent: 2749587 (1956-06-01), Richards et al.
patent: 2867554 (1959-01-01), Wilson et al.
patent: 3005736 (1961-10-01), Peras
patent: 3415307 (1968-12-01), Schuh et al.
patent: 3565609 (1971-02-01), Saeki et al.

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