Press assembly for extruding a billet

Details Press assembly for extruding a billet Press assembly for extruding a billet

1992-12-10

1995-02-28

Jones, David

Metal deforming

By extruding through orifice

72272, 72 38, B21C 2300

Patent

active

053926285

ABSTRACT:
An extrusion press has a sealing and suction device (30; 230; 330) mounted around a plunger (18; 118) with the possibility of sliding axially along the same; the device creates an airtight seal against a back face (25) of a container (20) for a billet (B) when the plunger is working within an inner chamber (24) of the container. A vacuum is created inside the chamber as soon as the plunger enters the chamber before extrusion of the billet begins.

REFERENCES:
patent: 3808865 (1974-05-01), Wagner et al.
patent: 4862721 (1989-09-01), De Rush

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