Flame-cutter employing a discontinuous oxygen supply for billets

Details Flame-cutter employing a discontinuous oxygen supply for billets Flame-cutter employing a discontinuous oxygen supply for billets

1983-09-21

1985-02-26

Stallard, W.

Metal treatment

Compositions

Heat treating

266 50, B23K 702

Patent

active

045016240

ABSTRACT:
A flame-cutter for separating a moving billet produced by a continuous caster wherein the billet is supported by at least one billet supporting roller. The flame-cutter includes a burner having a nozzle supported for synchronous movement with the billet, means for supplying oxygen to the billet and means for interrupting the supply of oxygen to the burner when the burner passes over each of the billet supporting rollers. Means are also provided for reducing the amount of oxygen escaping from the nozzle after interruption of the supply of cutting oxygen thereby minimizing damage to the supporting rollers and permitting a narrow optimized groove to be cut in the billet.

REFERENCES:
patent: 4303227 (1981-12-01), Dompas
patent: 4385750 (1983-05-01), Hennecke
patent: 4441934 (1984-04-01), Kawakami

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