刘伟,胡丹丹,王法超,黄腾,沈守稳,马帅,柴胜利

• 1:铜基新材料山西省重点实验室
• 2:宁波长振铜业有限公司

摘要(Abstract)：

近年来铜价持续飙升，为降低黄铜合金的生产成本，低铜含量黄铜产品的市场需求呈现出蓬勃增长的态势。采用废杂铜直接利用法生产了Cu50-52Zn48-50黄铜合金棒线材，即通过废杂铜原料成分设计→合金熔铸→挤压→热处理→加工成型的工艺路线，得到了质量稳定合格的低铜含量合金棒线材。结果表明：在热处理温度为450～600℃范围内，随着温度的升高和保温时间的延长，合金的抗拉强度和伸长率均显著提高，同时发生再结晶软化及时效强化；挤压坯在550℃保温4 h后，可制造出抗拉强度≥650 MPa、伸长率≥3%、直线度≤0.5 mm/m的高精密棒线材；在低铜含量合金棒线材的生产过程中，通过发挥热处理作用改善材料加工性能，开发出了一条质量稳定的工艺路线，降低了黄铜合金的使用成本。

关键词(KeyWords)： 废杂铜;热处理;微观组织;抗拉强度

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 刘伟,胡丹丹,王法超,黄腾,沈守稳,马帅,柴胜利

DOI: 10.13289/j.issn.1009-6264.2024-0523

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