Copper base alloys for automotive radiator fins, electrical conn

Details Copper base alloys for automotive radiator fins, electrical conn Copper base alloys for automotive radiator fins, electrical conn

1983-07-13

1985-01-08

Skiff, Peter K.

Metal treatment

Compositions

Heat treating

148 127C, 148433, 420470, 420500, C22C 902, C22F 108

Patent

active

044926022

ABSTRACT:
The present invention relates to novel tin bearing copper alloy compositions that possess a combination of high anneal resistance and high electrical cconductivity properties. These compositions contain about 0.025 to 0.15 weight percent free tin with a weight percent of combined tin that is 3.7 times the oxygen content. Selenium and/or tellurium additions of from 0.005 to 0.05 weight percent also contribute to or maintain the improved properties of the present invention.
Other aspects of the invention relate to a process for preparing these anneal resistant, high electrical conductivity copper alloy compositions and an apparatus suitable for use as radiator fin, electrical connector, or commutator segment stock which is formed by such process.

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patent: 4264360 (1981-04-01), Parikh et al.
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Woollaston et al., "High Conductivity Copper Alloy Forgings and Stampings 38 , Metallurgia and Metal Forming, Mar. 1977, pp. 100-104.
Mendenhall, Understanding Copper Alloys, Olin Corporation, East Alton, Illinois, 1977, p. 66.

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