METHOD OF MANUFACTURING SOFT-DILUTE-COPPER-ALLOY-MATERIAL
A method of manufacturing a soft-dilute-copper-alloy material includes a plastic working of a soft-dilute-copper-alloy including an additional element selected from the group consisting of Ti, Mg, Zr, Nb, Ca, V, Ni, Mn and Cr, and a balance consisting of copper and inevitable impurity, and a subsequent annealing treatment of the soft-dilute-copper-alloy. A working ratio in the plastic working before the annealing treatment is not less than 50%.
1 . A method of manufacturing a soft-dilute-copper-alloy material, comprising:
a plastic working of a soft-dilute-copper-alloy comprising an additional element selected from the group consisting of Ti, Mg, Zr, Nb, Cu, V, Ni, Mn and Cr, and a balance consisting of copper and inevitable impurity; and
a subsequent annealing treatment of the soft-dilute-copper-alloy,
wherein a working ratio in the plastic working before the annealing treatment is not less than 50%.
2 . The method according to claim 1 , wherein the soft-dilute-copper-alloy material has a linear shape having a diameter of less than 1.0 mm, and
wherein the annealing treatment is continuously performed by passing the material through a tubular furnace at a temperature of 250° C. to 550° C. for 0.6 seconds to 5.0 seconds.
3 . The method according to claim 1 , wherein the soft-dilute-copper-alloy material has a linear shape having a diameter of less than 1.0 mm, and
wherein the annealing treatment is continuously performed by an electric annealer at an applied voltage of 21V to 33V and a velocity of 300 m/min to 600 m/min.
4 . The method according to claim 1 , wherein the soft-dilute-copper-alloy material has a linear shape having a diameter of less than 1.0 mm, and
wherein the annealing treatment is performed by a batch processing at a temperature of 150° C. to 550° C. for not more than 3 hours.
15 . The method according to claim 1 , wherein the soft-dilute-copper-alloy material has a linear shape having a diameter of not less than 1.0 mm, and
wherein the annealing treatment is continuously performed by passing the material through a tubular furnace at a temperature of 300° C. to 800° C. for 1.0 second to 10.0 seconds.
6 . The method according to claim 1 , wherein the soft-dilute-copper-alloy material has a linear shape having a diameter of not less than 1.0 mm, and
wherein the annealing treatment is continuously performed by an electric annealer at an applied voltage of 25V to 35V and at a velocity of 100 m/min to 500 m/min.
7 . The method according to claim 1 , wherein the soft-dilute-copper-alloy material has a linear shape having a diameter of not less than 1.0 mm, and
wherein the annealing treatment is performed by a batch processing at a temperature of 170° C. to 700° C. for not more than 3 hours.
8 . The method according to claim 1 , wherein the soft-dilute-copper-alloy comprises 2 to 12 mass ppm of sulfur, more than 2 mass ppm and not more than 30 mass ppm of oxygen and 4 to 55 mass ppm of titanium as the additional element.