| 申请日期 | 2025-09-19 | 申请号 | WOCN16103198 |
| 公开（公告）号 | WO2018076165A1 | 公开（公告）日 | 2018-05-03 |
| 公开国别 | WO | 申请人省市代码 | 全国 |
| 申请人 | GUANGDONG WEIQIANG COPPER INDUSTRIAL SCIENCE AND TECHNOLOGY CO LTD | ||
| 简介 | Provided are a free-cutting brass alloy and a manufacturing method therefor. The copper alloy comprises, by weight percentage : 62% - 65% of copper, 0.01% - 0.15% of iron, 0.2% - 0.6% of tin, 0.2% - 0.6% of aluminum, 0.02% - 0.2% of nickel, 0.06% - 0.15% of arsenic, 0.3% - 1.2% of bismuth, 0.03% - 0.15% of antimony, 0.0005% - 0.0025% of boron, 34% - 37% of zinc and 0.01% - 0.1% of a mixed rare earth modificator. | ||
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