Copper alloy for use as wiring harness terminal material and pro

Details Copper alloy for use as wiring harness terminal material and pro Copper alloy for use as wiring harness terminal material and pro

1988-04-26

1989-10-03

Rutledge, L. Dewayne

Metal treatment

Compositions

Heat treating

148 127C, 148413, 148414, C21D 806

Patent

active

048713996

ABSTRACT:
A copper alloy obtained by preparing a blank of an alloy that consists of 1.0-3.0% Ni, 0.5-1.5% Ti (the ratio of Ni/Ti in weight percent being in the range of 1-3), 0.1-2.0% Zn, 0.01-0.5% Mg, no more than 50 ppm of oxygen, and the balance being Cu and incidental impurities, all percents being on a weight basis; and reducing the thickness thereof to the final value by cold rolling, wherein at least one cycle of solution heat-treatment is applied at a temperature of not lower than 900.degree. C., followed by quenching with water with no more than 50% reduction in plate thickness being attained to the final value subsequent to the final solution heat-treatment, and at least one cycle of aging treatment is applied at a temperature of 500.degree.-600.degree. C. for a period of 5-720 minutes at a stage during the period from the final solution heat-treatment to the cold rolling effected to attain the final plate thickness, has high strength, high elasticity and good electrical conductivity and exhibits good bending properties, high reliability in plating and high resistance to stress relaxation and, therefore, is suitable for use in terminals in wiring harnesses installed in electrical automotive parts.

REFERENCES:
patent: 4605532 (1986-08-01), Knorr et al.
patent: 4728372 (1988-03-01), Caron et al.

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