Metal refining with refractory coated pipe

Details Metal refining with refractory coated pipe Metal refining with refractory coated pipe

1987-12-21

1988-11-08

Rosenberg, Peter D.

Metallurgical apparatus

Process

75 53, 75 68R, 75 76, 266225, 266270, C21C 532, C21B 716

Patent

active

047830573

ABSTRACT:
Disclosed is a heat resistant composite comprising a refractory coating on a metal substrate. The refractory coating is provided by mixing a refractory mortar with water, impregnating a water absorbent web of fibrous material with the liquid mixture, placing at least one layer of the impregnated web on a surface of the substrate as a coating, and drying the coating to remove the water and cause the refractory mixture to chemically bond. The substrate may be a pipe protected by the coating for use in injecting a refining agent beneath the surface of a molten metal composition comprising a scrap metal such as copper or aluminum.

REFERENCES:
patent: 3681051 (1972-08-01), Takashima
patent: 4483520 (1984-11-01), La Bate
patent: 4662614 (1987-05-01), Larsson
The Making, Shaping and Treating of Steel, U.S. Steel (9th Ed.) pp. 36-65.

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