Extruder

Details Extruder Extruder

1998-02-19

1999-04-27

Hail, III, Joseph J.

Metal deforming

By extruding through orifice

Container and/or support therefor

72273, B21C 2700

Patent

active

058967729

ABSTRACT:
An extruder is formed of a container having a container liner for receiving a billet therein, an extrusion stem situated near the container for disposing the billet into the container, and a two-piece seal block installed between the container and the extrusion stem for sealing therebetween. The seal block is formed of two seal block sections for sandwiching the extrusion stem therebetween. Each seal block section includes a base piece having a press member, and a holding block detachably attached to the base piece to be moved by the press member and having a first sealing member facing the extrusion stem and a second sealing member facing the container. A moving device is attached to the seal block sections for moving the seal block sections relative to the extrusion stem. The holding block is urged to the extrusion stem by the moving device, and to the container by the press member to thereby seal between the container and the extrusion stem.

REFERENCES:
patent: 5392628 (1995-02-01), Cristiani
patent: 5445004 (1995-08-01), Nannini et al.
patent: 5461899 (1995-10-01), Sorheim et al.
patent: 5613393 (1997-03-01), Bessey
patent: 5678442 (1997-10-01), Ohba et al.

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