| 地铁轨道用铁素体球墨铸铁垫板的开发 |
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| 引用本文： | 陈卫中,邵忠,杨明昊.地铁轨道用铁素体球墨铸铁垫板的开发[J].铸造,2011,60(6). |
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| 作者姓名： | 陈卫中 邵忠 杨明昊 |
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| 作者单位： | 1. 沈阳铁路局沈阳工务器材厂,辽宁,沈阳,110044
2. 沈阳铁道工业集团有限公司,辽宁,沈阳,110001 |
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| 摘 要： | 采用二次孕育处理和控制终硅量方法对铁路轨道用可锻铸铁垫板的生产工艺进行改进,开发地铁轨道用铁素体球墨铸铁垫板.结果表明,经过二次孕育处理后,石墨球化率增加,分布均匀.该垫板的抗拉强度460～520MPa,伸长率为12%～15%,达到国家标准,可以替代可锻铸铁垫板.
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| 关 键 词： | 球墨铸铁 二次孕育 终硅量 轨道垫板 |
The Development of Ferrite Ductile Iron Backing Plate for Subway Rail |
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| CHEN Wei-zhong,SHAO Zhong,YANG Ming-hao.The Development of Ferrite Ductile Iron Backing Plate for Subway Rail[J].Foundry,2011,60(6). |
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| Authors: | CHEN Wei-zhong SHAO Zhong YANG Ming-hao |
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| Affiliation: | CHEN Wei-zhong1,SHAO Zhong2,YANG Ming-hao1(1.The Factory of Railway Engineering Affairs and Equipment of Shenyang Railway Administration,Shenyang 110044,Liaoning,China,2.Shenyang Railway Industry Group Co.,Ltd.,Shenyang 110001,China) |
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| Abstract: | The experiment has been performed to obtain ferrite ductile iron backing plate used in subway rail by changing final silicon content and using secondary inoculation to modify the processing of malleable cast iron backing plate used in railway track.The results show that secondary inoculation and the increment of the final silicon content make the percent of spheroidization increase and nodular graphite well distribute.The tensile strength of the plate reached 460-520 MPa,elongation ratio 12%-15%.The mechani... |
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| Keywords: | ductile iron secondary inoculation final silicon content rail backing plate |
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