Injection of substances into high temperature liquids

Details Injection of substances into high temperature liquids Injection of substances into high temperature liquids

1988-06-17

1990-02-13

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 53, 75 58, 75 591, 266 45, 266 47, C21C 700

Patent

active

049003577

ABSTRACT:
Gas injection into a metal melt, accompanied if desired by powdered or solid treatment substances, is by way of a nozzle inserted into the wall of a melt-containing vessel. The nozzle bore initially has a stopper at its inner end and a delivery pipe smaller than the bore is movable therein. Before injection, the pipe and bore adjacent the stopper are cooled by gas. By thrusting the pipe against the stopper while sufficient gas flow and pressure is maintained, the stopper is dislodged and the gas will enter the melt as a jet which leaves the pipe at a injection cooling, then when injection is completed allowing the melt to enter and rapidly freeze locking the pipe safely in the bore.

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