Process of manufacturing killed steel ingots of superior quality

Details Process of manufacturing killed steel ingots of superior quality Process of manufacturing killed steel ingots of superior quality

1975-06-16

1977-09-06

Hayes, Lorenzo B.

Metal founding

Process

Shaping liquid metal against a forming surface

106 3822, 106 3823, 106 3828, 164123, 249197, 249202, B28B 736

Patent

active

040461874

ABSTRACT:
A process of manufacturing killed steel ingots of superior quality by forming the sound hot top portion and reducing the concentration of nonmetallic inclusion in the mushy zone of ingot bottom, characterized by arranging on the molten steel surface immediately after the pouring of the molten steel into a mold, a board-like molded heat-retaining material in which lining of a layer consisting of easily-flammable material is made to an exothermic, diabatic layer consisting of crushed flat charcoal, a refractory material expansible by heating and a binder.

REFERENCES:
patent: 2513602 (1950-07-01), Udy
patent: 2821758 (1958-02-01), Vallak
patent: 3344838 (1967-10-01), Nouveau
patent: 3612155 (1971-10-01), Matsuyama et al.
patent: 3713852 (1973-01-01), Wiley
patent: 3848655 (1974-11-01), Sato et al.
patent: 3923526 (1975-12-01), Takashima

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