Extrusion of metals
AssigneeOlin Corporation
InventorsSankaranarayanan Ashok, Harvey P. Cheskis, Derek E. Tyler
Life of this patent
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Abstract
A metal extrusion process and apparatus in which a semisolid material is fed into a passageway formed between first and second members, with one of the members being moved toward a die such that the semisolid material is drawn through the passageway and solidifies before passing through the die means.
Claims7
The process for extruding metal in an apparatus which includes a passageway formed between a first member and a second member, said passageway having an opening for the reception of a material to be extruded and a closed end remote from said opening, and die means adjacent said closed end, said process comprising:
- a. continuously introducing a semisolid metal material into said opening of said passageway,
- b. moving said first member relative to said second member in a direction toward said die means from said open end to said closed end so that said metal is drawn through the passageway, and
- c. solidifying said semisolid material before it passes through said die means.
Dependencies are inferred from the claim text.