A method of manufacturing the high strength, and high conductivity copper alloy

摘要

No inconvenience to the production and to promote the deoxygenated with Si being used in Copper plant, when the content elements of Cr, and Sn, the present invention, melting and casting in a reducing atmosphere under atmospheric, non-oxidizing or is capable of, on a copper alloy as well as combines the high conductivity and without reducing the tensile strength, having the proper high formability. Also, by not performing the high-temperature solution of hot rolling after the order is dissolved well in Cu matrix and Cr, it relates to copper alloys suitable for the inexpensive production costs by shortening the process . 100% by weight, the composition of the present invention, Cr0.2~0.4 wt%, Sn0.05~0.15 wt%, Zn0.05~0.15 wt%, Mg0.01~0.30 wt% is Si0.03~0.07 wt%, and a copper alloy with the balance being in the composition is unavoidable impurities and Cu, and high tensile strength, high formability and high conductivity. Moreover, obtaining a melt of composition as described above, the steps of obtaining an ingot, a step of hot rolling by heating at 900~1000 ℃ the ingot, a step of cold rolling, the present invention, 400 The copper alloy which comprises the steps of 2-8 hours primary aging treatment at ~500 ℃, the steps of cold rolling, the steps of 2-8 hours secondary aging treatment at 370~450 ℃, in that it consists of and a production method. [Selection] Figure Figure 1