Extruder

Details Extruder Extruder

1996-05-31

1997-10-21

Larson, Lowell A.

Metal deforming

By extruding through orifice

Container and/or support therefor

72273, 723423, B21C 2700

Patent

active

056784422

ABSTRACT:
An extruder has a cylindrical container into which a billet is loaded; a two-piece seal block disposed on an end surface of the container at an extruding stem side; a vacuum deaerating hole formed in the seal block; and a fixed dummy block, having an internal cooling function, fixed to an end of the extruding stem, wherein the seal block is allowed to be opened and closed in a direction perpendicular to the axial direction of the container and the seal block comes in close contact with an outer surface of the extruding stem and the end surface of the container when the seal block is closed.

REFERENCES:
patent: 3360975 (1968-01-01), Edgecombe
patent: 3364707 (1968-01-01), Foerster
patent: 3455137 (1969-07-01), Edgecombe
patent: 4399676 (1983-08-01), Noyori et al.
patent: 4475372 (1984-10-01), Ostlinning et al.
patent: 4606211 (1986-08-01), Noyori et al.
patent: 5445004 (1995-08-01), Nannini et al.
patent: 5461899 (1995-10-01), Sorheim et al.
"Speciale Feature on Section", Current Technological Situation, Sepbermber Edition, pp. 76-76.

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