Process of ingot casting

Details Process of ingot casting Process of ingot casting

1975-09-02

1977-07-19

Weidenfeld, Gil

Metal founding

Process

Shaping liquid metal against a forming surface

B22D 2700

Patent

active

040362825

ABSTRACT:
The surface quality of ingots may be improved by bottom-pouring molten metal into an ingot mould wherein there is located in the ingot mould, prior to the commencement of pouring, a multi-layered board having a first layer which is a preformed slab comprising an anti-piping composition including an exothermic material and a second layer adjacent the first layer which is a preformed slab comprising a fluxing agent, a fibrous material and a binder, the second layer having a central cavity therein filled with a preformed refractory slab comprising a refractory material, a fibrous material and a binder, the slabs being arranged such that the refractory slab is enclosed within the board, and the board being located in the mould with the first layer uppermost. The board acts as both a mould additive and as an anti-piping compound.

REFERENCES:
patent: 2462256 (1949-02-01), Charman et al.
patent: 3672918 (1972-06-01), Rocher et al.
patent: 3876420 (1975-04-01), Phoenix et al.

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