| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a component for carrying medium water or drinking water (especially a joint, valve, pipe, press-coupled part, eaves gutter or drainage gutter), and the component for carrying medium water or drinking water (especially a joint, valve, pipe, press-coupled part, eaves gutter or drainage gutter). SOLUTION: In the method for manufacturing the component for carrying medium water or drinking water, especially the joint, the valve, the pipe, the press-coupled part, the eaves gutter or the drainage gutter, an ingot or a rod is continuously cast from a copper alloy. The copper alloy comprises 2-4.5 wt.% Si, 1-17 wt.% Zn and 0.05-0.6 wt.% Mn as alloy components, up to 0.5 wt.%, preferably up to 0.3 wt.% of unavoidable accompanying elements in total and the balance being copper. In the method, the ingot or the rod for manufacturing the component is at least once subjected to cold- and/or hot-forming. COPYRIGHT: (C)2007,JPO&INPIT
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