| 摘要 |
PROBLEM TO BE SOLVED: To provide a copper-base alloy which contains at least either Zn or Sn and has superior hot workability, and to provide a method for easily manufacturing the copper-base alloy. SOLUTION: The copper-base alloy, superior in hot workability and containing at least either 0.2-12 wt.% Sn and 8-45 wt.% Zn, is produced by using, as the raw material, a copper-base alloy with a large surface area and with C adsorbed on the surface, a copper-base alloy with a liquidus line temperature of 1,050°C or lower, a copper-base alloy surface-treated with Sn, or a copper-base alloy containing 20-1,000 ppm C. If necessary, the raw material may be melted in a vessel coated with a solid substance containing 70% or more C; and a solid deoxidizer having a stronger affinity with O than with C in an amount of 0.005-0.5 wt.% based on the weight of the molten metal may be added to the molten metal. COPYRIGHT: (C)2004,JPO&NCIPI
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