Self-opening closure for a casting crucible used in aluminotherm

Details Self-opening closure for a casting crucible used in aluminotherm Self-opening closure for a casting crucible used in aluminotherm

1983-03-03

1985-06-11

Skaggs, H. Grant

Dispensing

Molten metal dispensing

Flow controllers or assists

266236, 222 54, B22D 4108

Patent

active

045223220

ABSTRACT:
A self-opening closure for casting crucibles used in aluminothermic reactions and made of a high mechanical-strength, high boiling point inorganic material producing no gases when heated, the closure being composed of one or more sealing disk(s) made of a fibrous aluminum silicate, the ratio of the total thickness of the sealing disk(s) to its (their) diameter being 1:5 to 1:1, the melting point of the aluminum silicate being equal to or exceeding 1650.degree. C., and a metal plate between 0.1 and 3 mm thick mounted on the sealing disk(s).

REFERENCES:
patent: 3831915 (1974-08-01), Guntermann
Allgemeinen Thermit Gesellschaft MBH, 1902, pp. 271-285.

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