Expandable, consumable stopper plug for steel making and handlin

Details Expandable, consumable stopper plug for steel making and handlin Expandable, consumable stopper plug for steel making and handlin

1982-10-22

1984-09-18

Rutledge, L. Dewayne

Metallurgical apparatus

Means sealing or opening aperture in vessel

By means plugging aperture

266 45, 266271, C21B 712

Patent

active

044719507

ABSTRACT:
A stopper plug for sealing the tap hole of a molten metal receptacle is formed of refractory materials, fibrous substances, and consumable-disintegrable materials in a hollow conical plug that is expandable in a tap hole by movement of a wedge-shaped member therein, the expanded stopper plug being capable of effectively sealing the tap hole for a predetermined time.

REFERENCES:
patent: 3124854 (1964-03-01), Dore
patent: 3398945 (1968-08-01), Walpole
patent: 3540627 (1970-11-01), Armstead
patent: 4010936 (1977-03-01), Takashima
patent: 4030709 (1977-06-01), Shepard et al.

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