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预防铝合金压铸表面产生的软斑的措施都有哪些?

来源:http://www.ok9868.com     发布时间:2020-03-30 16:20:23    点击:

  如何防止山东铝合金压铸表面的软斑
  How to prevent the soft spot on the die casting surface of Shandong Aluminum Alloy
  压铸件模具热处理后表面经常出现软点,这将影响模具的耐磨性,降低模具的使用寿命。
  Soft spots often appear on the surface of die casting die after heat treatment, which will affect the wear resistance of die and reduce the service life of die.
  原因:热处理前模具表面有氧化皮、铁锈和局部脱碳。模具淬火加热后,淬火介质选择不当,淬火介质中杂质过多或老化。
  Cause: before heat treatment, there are scale, rust and local decarburization on the surface of mould. After quenching and heating, the quenching medium is not properly selected, and there are too many impurities or aging in the quenching medium.
  预防措施:模具热处理前应清除氧化皮、锈斑,在淬火加热时要适当保护模具表面,应尽量采用真空炉、盐浴炉和保护气氛炉加热。模具淬火加热后冷却时,应选择合适的冷却介质。长期使用的冷却介质应经常过滤或定期更换。
山东铝合金压铸
  Preventive measures: before the heat treatment of the mold, the oxide skin and rust spots shall be removed, and the mold surface shall be properly protected during quenching and heating. The vacuum furnace, salt bath furnace and protective atmosphere furnace shall be used as far as possible for heating. When the mould is cooled after quenching and heating, proper cooling medium should be selected. The cooling medium used for a long time shall be filtered or replaced regularly.
  以上就是对预防铝合金压铸产生软斑的措施的详细介绍,想要了解更多请点击官网http://www.ok9868.com
  The above is a detailed introduction to the measures to prevent soft spots in aluminum alloy die casting. For more information, please click http://www.ok9868.com
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