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Some Key Points on High Strength Grey Iron Cylinder Block Production

机译：高强度灰铁缸体生产的几个关键点

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摘要

Three key points are discussed to manufacture 300Mpa cylinder block castings. The first one is the design of grey iron chemical composition. The chemical composition used for production is as follows: C: 3.20-3.30%, Si: 1.60-1.80%, Mn: 0.70-1.00%, S: <0.10%, P: <0.06%, Cu: 0.70-0.80%, Cr: 0.25-0.35%, Ni: 0.30-0.40%, Sn: 0.06-0.08%. The stream inoculation is adopted. Another key point is to increase the chilling effect of molding material. A kind of ceramic sand is used in the experiment. The ceramic sand is mainly composed of electric fusion bauxite. The material gives much stronger chilling effect. The tensile strength can be 20 MPa higher compared with ordinary silica sand. The third key point is to use the technology of synthetic cast iron. The 300 MPa cylinder block is successfully developed.
机译：讨论了制造300Mpa缸体铸件的三个关键点。第一个是灰铁化学成分的设计。用于生产的化学成分如下：C：3.20-3.30％，Si：1.60-1.80％，Mn：0.70-1.00％，S：<0.10％，P：<0.06％，Cu：0.70-0.80％， Cr：0.25-0.35％，Ni：0.30-0.40％，Sn：0.06-0.08％。采用流接种。另一个关键点是提高模塑材料的冷却效果。实验中使用了一种陶瓷砂。陶瓷砂主要由电熔铝土矿组成。该材料具有更强的冷却效果。与普通硅砂相比，抗拉强度可以高出20 MPa。第三个关键点是使用合成铸铁技术。成功开发出300 MPa的气缸体。

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  • 来源
  • 会议地点 Luxor(EG);Luxor(EG)
  • 作者

    Li Fengjun; Cai Anke; Tang Dingxiang; Ren Fengzhang; Dong Hongli;

  • 作者单位

    Technology and material research institute of China first tractor corporation, Louyang 471004, China;

    Technology and material research institute of China first tractor corporation, Louyang 471004, China;

    Henan university of science and technology, Louyang 471003, China;

    Henan university of science and technology, Louyang 471003, China;

    Henan university of science and technology, Louyang 471003, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 铸铁;
  • 关键词

    Grey cast iron; Cylinder block; High strength;

    机译：灰铸铁；气缸体高强度;

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