熊仲明, 宋维锡, 王明强, 金静淑, 朱文秀. 砂型离心铸造稀土灰铸铁管[J]. 工程科学学报, 1992, 14(1): 34-41. DOI: 10.13374/j.issn1001-053x.1992.01.023
引用本文: 熊仲明, 宋维锡, 王明强, 金静淑, 朱文秀. 砂型离心铸造稀土灰铸铁管[J]. 工程科学学报, 1992, 14(1): 34-41. DOI: 10.13374/j.issn1001-053x.1992.01.023
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Xiong Zhongming, Song Weixi, Wang Mingqiang, Jin Jingshu, Zhu Wenxiu. The Sand Mold Centrifugal-Casting Gray Cast Iron Pipes[J]. Chinese Journal of Engineering, 1992, 14(1): 34-41. DOI: 10.13374/j.issn1001-053x.1992.01.023
Citation: Xiong Zhongming, Song Weixi, Wang Mingqiang, Jin Jingshu, Zhu Wenxiu. The Sand Mold Centrifugal-Casting Gray Cast Iron Pipes[J]. Chinese Journal of Engineering, 1992, 14(1): 34-41. DOI: 10.13374/j.issn1001-053x.1992.01.023
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砂型离心铸造稀土灰铸铁管

The Sand Mold Centrifugal-Casting Gray Cast Iron Pipes

    摘要
  • 摘要: 用稀土硅铁处理的砂型离心灰铸铁管、管体抗拉强度可提高25.9%(冲入法)和42.4%(喷吹法),其平均管体抗拉强度达到214N/mm2(冲入法)、242N/mm2(喷吹法),都超过了国际(ISO13-78)标准所规定的砂型离心铸铁管的指标(180N/mm2),达到了金属型离心灰铸铁管的抗拉强度要求(200N/mm2)。该铸铁管管壁厚度比国际标准规定的薄2.2mm(14.1%)。

     

    Abstract: The body tensile strengh of the centrifugal-casting gray cast iron pipes treated with RE can be improved to 25.9%(pouring of ladle) or 42.4% (spraying process), while their average values are 214N/mm2, and 242N/mm2 respectively. Both surpass the (ISO13-78) specification (180N/mm2) and reach the requirement of metal mold centrifugal-casting gray cast iron pipes. The cast iron pipe thickness is 2.2mm(14.1%) thinner than the international standard.

     

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