区域炼用于有效地去除杂质,并从7000系列计算机数控加工废料中回收高纯度的
Minsu Heo1, Se-Jun Kim1, Young-Woo Kim1
1Department of Materials Science and Engineering, University of Seoul, Seoul 02504, South Korea.
Waste management (New York, N.Y.)
|January 29, 2025
概括
区域化 (ZM) 通过在真空下去除杂质,有效地回收7000系列合金废料. 这种创新的回收方法实现了高纯度的,促进了电子制造业的可持续资源管理.
科学领域:
- 材料科学 材料科学 材料科学
- 金工程 金工程 金工程
- 可持续制造 可持续制造 可持续制造
背景情况:
- 7000系列合金被广泛使用,但由于等合金元素存在回收挑战.
- 传统的回收方法难以有效地去除杂质,限制了废料的再利用.
- 智能手机生产中的计算机数控 (CNC) 加工产生了大量的合金废料.
研究的目的:
- 研究真空大气区化 (ZM) 作为回收7000系列合金废料的新方法.
- 评估ZM在去除杂质和提高纯度方面的效率.
- 评估ZM在电子行业可持续资源管理方面的潜力.
主要方法:
- 具有高杂质含量 (>2.27 wt.%) 的废料的预处理.
- 化废料以形成一个金条.
- 应用真空大气区化 (ZM) 来精炼.
- 优化ZM参数 (大气,区域行驶速度,通过次数).
- 测量导热率以评估纯度.
主要成果:
- 真空ZM成功地通过蒸发和分离去除了Zn和Mg杂质.
- 的纯度显著增加到99.5%的重量,相当于1000系列合金.
- 优化的ZM参数增强了的分布均性和整体纯度.
- 精炼的导热率 (99.5%重量%Al) 达到155W/m-K,证实了其高纯度.
结论:
- 真空ZM是回收7000系列合金废料的高效方法.
- 该工艺产生适合各种应用的高纯度.
- ZM回收有助于可持续的资源管理和电子制造业的循环经济.
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