Method and equipment for performing continuous extrusion

Details Method and equipment for performing continuous extrusion Method and equipment for performing continuous extrusion

2007-08-21

2007-08-21

Tolan, Ed (Department: 3725)

Metal deforming

By extruding through orifice

By rotating impeller means

C072S038000

Reexamination Certificate

active

10563542

ABSTRACT:
The invention relates to a method for performing continuous extrusion of a metallic material, such as copper, so that the material to be extruded (1) is fed in the extrusion member (4) by means of a feed member (3) provided with a groove on its peripheral wall (2) and by an abutment (5) arranged in said groove, so that the groove (8) is protected against oxidation by arranging for at least part of the peripheral wall (2) of the feed member (3) a gas-protecting member (7). The invention also relates to said equipment.

REFERENCES:
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patent: 4650408 (1987-03-01), Anderson et al.
patent: 5133126 (1992-07-01), Matsuoka
patent: 5782120 (1998-07-01), Wright
patent: 6637249 (2003-10-01), Heikkila
patent: 2241660 (1991-09-01), None
patent: 61-195969 (1986-08-01), None
patent: 6-226335 (1994-08-01), None
patent: 09-323104 (1997-12-01), None
patent: 10-166035 (1998-06-01), None
patent: WO90/14176 (1990-11-01), None
International Search Report for PCT/FI2004/000365, dated Oct. 28, 2004.

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