Method of and means for obtaining white cast iron

Details Method of and means for obtaining white cast iron Method of and means for obtaining white cast iron

1976-02-10

1977-06-14

Baldwin, Robert D.

Metal founding

Process

Shaping liquid metal against a forming surface

164349, 427133, B22D 2720

Patent

active

040291405

ABSTRACT:
In an iron molding process and in a mold for carrying out the process, in which the mold is at least locally coated with tellurium or bismuth to promote the production of a white iron structure there is included in the coating a mineral substance such as a clay containing water which is loosely chemically combined, or a substance containing hydroxyl groups, the water or each hydroxyl group being chemically combined tightly enough so that it withstands the heat involved in drying of the mold but is liberated on contact with the molten iron.

REFERENCES:
patent: 2234152 (1941-03-01), Archer
patent: 2250488 (1941-07-01), Lorig et al.

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