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首页> 外文期刊>Materials science forum >Melt Refining Technology of Highly-Contaminated Magnesium Alloy Scraps via a Sequential Refining Process
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Melt Refining Technology of Highly-Contaminated Magnesium Alloy Scraps via a Sequential Refining Process

机译：通过顺序精炼工艺对高污染镁合金废料进行熔炼技术

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摘要

Steering wheel and headlamp housing scrap are chosen as targets for the development of a refining technology for highly contaminated magnesium melt, because they contain abundant foreign materials, which have high potential to form non-metallic inclusions and to deteriorate the corrosion resistance of recycled alloys. A sequential melt treatment technology has been investigated for refining old scrap. The headlamp housing scrap composed of AZ91D magnesium alloy covered with phosphating and Al-Si deposition layers was successfully refined by repeating gas bubbling without flux addition, whereas prefiltering and fluxing were necessary to refine the steering wheel scrap composed of AM50A magnesium alloy containing 1% polyurethane. However, the corrosion rates of the recovered ingots from the headlamp housing were relatively higher than those from the steering wheel, likely due to the greater concentration of iron with the increased amount of flux.
机译：选择方向盘和前灯​​外壳废料作为开发高污染镁熔体的精炼技术的目标，因为它们含有大量的异物，这些异物极有可能形成非金属夹杂物并降低回收合金的耐腐蚀性。已经研究了一种顺序熔体处理技术来精炼旧废料。在不添加助熔剂的情况下，通过重复起泡，成功地精制了覆盖有磷化和Al-Si沉积层的AZ91D镁合金组成的前照灯外壳废料，而精制由含1％聚氨酯的AM50A镁合金组成的方向盘废料则需要进行预过滤和助熔剂处理。但是，从前照灯外壳中回收的铸锭的腐蚀速率相对高于从方向盘中回收的铸锭的腐蚀速率，这可能是由于铁的浓度越高，而助焊剂的用量却越多。

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  • 来源
    《Materials science forum》 |2015年第2015期|82-86|共5页
  • 作者

    KI-HO Koh; BYOUNG-Gi Moon; BONG Sun You; KWANG Seon Shin; NACK Joon Kim; KEUN Yong Sohn;

  • 作者单位

    Inje University, 197 Inje-ro, Gimhae, Gyeongnam, Republic of Korea 621-749;

    Korea Institute of Materials Science (KIMS), 797 Changwondaero, Seongsan-gu, Changwon, Gyeongnam, Republic of Korea 642-831;

    Korea Institute of Materials Science (KIMS), 797 Changwondaero, Seongsan-gu, Changwon, Gyeongnam, Republic of Korea 642-831;

    Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea 151-742;

    Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, Republic of Korea 790-784;

    Inje University, 197 Inje-ro, Gimhae, Gyeongnam, Republic of Korea 621-749;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    magnesium; recycling; melt refining; contamination; old scrap;

    机译：镁;回收;熔炼污染;旧废料;

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