Process for producing spherical graphite castings

Metal founding – Process – Shaping liquid metal against a forming surface

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75130AB, B22D 2700

Patent

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043378161

ABSTRACT:
A process for producing spherical graphite cast iron characterized by arranging a required amount of sphering alloy blocks in the hollow part for making a product of a casting mold and then pouring a melt into the casting mold; and a process for producing compound castings consisting of spherical graphite cast iron and ordinary cast iron characterized by arranging a required amount of sphering alloy blocks in the hollow part for making a product and requiring the strength of the product of a casting mold and pouring an ordinary cast iron melt into the casting mold.

REFERENCES:
patent: 786009 (1905-03-01), Cowden
patent: 1374509 (1921-04-01), Lomax

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