Stave cooling device having unwelded double tube

Details Stave cooling device having unwelded double tube Stave cooling device having unwelded double tube

1980-04-03

1982-05-04

Rosenberg, P.D.

Metallurgical apparatus

Means for treating ores or for extracting metals

By means applying heat to work, e.g., furnace

165 70, C21B 710

Patent

active

043278990

ABSTRACT:
A stave cooling device includes a double drawn steel tube cast-mounted in a castable metal main body, and the double tube includes an inner tube which serves as a passage for a coolant. The inner tube of the double tube contains 0.20 to 0.38% of equivalent carbon and an outer tube of the double tube contains 0.15 to 0.25% of equivalent carbon. The outer tube has on its outer surface an alumina coating of 0.08 to 0.25 mm thick, and the main body is formed by casting a spheroidal graphite cast iron. The double tube is cast-mounted in the main body such that the double tube and the main body are not welded together.

REFERENCES:
patent: 1090574 (1904-03-01), Shannon
patent: 2743089 (1956-04-01), Gardnier
patent: 3706343 (1972-12-01), Saiga
patent: 4150818 (1979-04-01), Buhler
patent: 4162061 (1979-07-01), Buhler
patent: 4217954 (1980-08-01), Vincent

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