US2014272445A1PendingUtilityA1

Dual-phase hot extrusion of metals

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Individually held — no corporate assignee on recordPriority: Mar 14, 2013Filed: Mar 14, 2013Published: Sep 18, 2014
Est. expiryMar 14, 2033(~6.6 yrs left)· nominal 20-yr term from priority
Inventors:Philip O. FunkDouglas S. WinnerSeth Lafountain WyseBenjamin Anthony Laemmerhirt
C22C 49/14B22F 3/20C22C 49/02B22F 2003/208Y10T428/12
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Claims

Abstract

The present disclosure provides a method of dual-phase hot metal extrusion comprising (i) providing a load carrier made of a first metal material, wherein the load carrier comprises one or more load chambers containing a second metal material, wherein the melting point of the second metal material is lower than the melting point of the first metal material, (ii) heating the load carrier to a temperature above the melting point of the second metal material and suitable for extrusion of the load carrier, and (iii) extruding the load carrier to form an extruded product. The present disclosure also provides apparatuses for accomplishing the dual-phase hot extrusion of metals and products resulting from such processes.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . An extruded composition comprising a primary metal or metal alloy and having a length, the extruded composition comprising filaments extending axially along at least a portion of the length of the extruded composition, wherein the filaments comprise a secondary metal or metal alloy and a cross-section of the extruded composition perpendicular to the length comprises at least 25 filaments. 
     
     
         2 . The extruded composition of  claim 1 , wherein the cross-section of the extruded composition perpendicular to the length comprises at least 100 filaments. 
     
     
         3 . The extruded composition of  claim 1 , wherein the cross-section of the extruded composition perpendicular to the length comprises at least 500 filaments. 
     
     
         4 . The extruded composition of  claim 1 , wherein the cross-section of the extruded composition perpendicular to the length comprises at least 1000 filaments. 
     
     
         5 . The extruded composition of  claim 1 , wherein the filaments in the cross-section of the extruded composition have an average cross-sectional surface area per filament of between about 1 nm 2  to about 10 cm 2 . 
     
     
         6 . The extruded composition of  claim 1 , wherein the filaments in the cross-section of the extruded composition have an average cross-sectional surface area per filament of between about 1 μm 2  to about 1 cm 2 . 
     
     
         7 . The extruded composition of  claim 1 , wherein the filaments in the cross-section of the extruded composition have an average cross-sectional surface area per filament of between about 25 μm 2  to about 0.1 cm 2 . 
     
     
         8 . The extruded composition of  claim 1 , wherein the primary metal is copper or a copper alloy. 
     
     
         9 . The extruded composition of  claim 1 , wherein the secondary metal or metal alloy comprises aluminum, antimony, magnesium, tin, zinc, or any combination thereof. 
     
     
         10 . An extruded composition comprising a primary metal or metal alloy and having a length, the extruded composition comprising filaments extending axially along at least a portion of the length of the extruded composition, wherein the filaments comprise a secondary metal or metal alloy and a cross-section of the extruded composition perpendicular to the length comprises at least 25 filaments, wherein at least one filament in the cross-section of the extruded composition has an average cross-sectional surface area of between about 1 nm 2  to about 10 cm 2 . 
     
     
         11 . The extruded composition of  claim 10 , wherein the average cross-sectional surface area of the at least one filament is between about 1 μm 2  to about 1 cm 2 . 
     
     
         12 . The extruded composition of  claim 10 , wherein the average cross-sectional surface area of the at least one filament is between 25 μm 2  to about 0.1 cm 2 . 
     
     
         13 . The extruded composition of  claim 10 , wherein the cross-section of the extruded composition perpendicular to the length comprises at least 100 filaments. 
     
     
         14 . The extruded composition of  claim 10 , wherein the cross-section of the extruded composition perpendicular to the length comprises at least 500 filaments. 
     
     
         15 . The extruded composition of  claim 10 , wherein the cross-section of the extruded composition perpendicular to the length comprises at least 1000 filaments. 
     
     
         16 . The extruded composition of  claim 10 , wherein the secondary metal comprises copper or a copper alloy. 
     
     
         17 . The extruded composition of  claim 10 , wherein the primary metal comprises aluminum, antimony, magnesium, tin, zinc, or any combination thereof. 
     
     
         18 . A copper extrusion product comprising filaments extending axially along at least a portion of the length of the copper extrusion product, wherein the filaments comprise aluminum, antimony, magnesium, tin, zinc, or any combination thereof, and a cross-section of the copper extrusion product perpendicular to the length comprises at least 25 filaments. 
     
     
         19 . The copper extrusion product of  claim 18 , wherein the copper extrusion product comprises at least 100 filaments. 
     
     
         20 . The copper extrusion product of  claim 18 , wherein the cross-section of the copper extrusion product has at least one filament having a cross-sectional surface area of between about 1 μm 2  to about 0.1 cm 2 .

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