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US 5,310,985 AGranted
Process for joining copper alloys
AssigneeFisk Alloy Wire, Inc.
InventorsBrian Fisk, Joseph Winter
Life of this patent
Estimating the term…
Abstract
End faces of copper alloys to be used for electrical conductors are placed in contacting relationship under a compressive force below the yield strength of the copper alloy conductor in the room temperature condition. The contacting end faces are heated under continuous compression at a temperature of at least 300.degree. C. but below the solvus temperature of the copper alloy in at least one heating cycle.
Claims16
Process for joining copper alloys to be used for electrical conductors which comprises:
- providing copper alloy conductors having butt end faces thereof to be joined with closely matching configurations;
- rigidly clamping the end faces of the alloys to be joined in contacting relationship under a compressive force but below the yield strength of the copper alloy in the room temperature condition, wherein the copper alloy to be joined contains less than about 20% alloying additions and at least 0.01% each of at least one of the alloying elements tin, iron, zirconium, cadmium, beryllium, silver and magnesium;
- applying heat to the contacting end faces while said end faces are under continuous compression at a temperature of at least 300.degree. C. but below the solvus temperature of the copper alloy in at least one heating cycle while maintaining the alloying elements out of solution;
- whereby the contacting end faces form a joined copper alloy with good strength and conductivity properties.
1 more element
Dependencies are inferred from the claim text.