Pull-back type indirect extrusion press

Details Pull-back type indirect extrusion press Pull-back type indirect extrusion press

1981-06-09

1983-04-12

Larson, Lowell A.

Metal deforming

By extruding through orifice

Indirect extrusion

722531, 72254, 72255, 72270, 7245312, 72 40, B21C 2900, B21C 3300, B21C 3504, B21C 2321

Patent

active

043793983

ABSTRACT:
A pull-back type indirect extrusion press is designed so that the scalping of billets can be effected inside the press independently of extrusion cycles and the scalped billet is allowed to stand by in a billet extrusion standby space which is provided with a heating element to heat the standby billet to maintain the same at a required temperature and into which a billet oxidation-preventive gas is admitted to prevent oxidation of the standby billet.

REFERENCES:
patent: 3216233 (1965-11-01), Pischel et al.
patent: 3563073 (1971-02-01), Fischer
patent: 3577759 (1971-05-01), Tandler
patent: 3695081 (1972-10-01), Gartner
patent: 4165625 (1979-08-01), Wagner et al.

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