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| Effect of Horizontal Roll Straightening on Cross Section Dimensions of Heavy Rail |
| ZHOU Jianhua1,WU Di1,ZHAO Xianming1,LIN Gang2,WANG Yongming3 |
| 1.The State Key Lab. of Rolling and Automation Northeastern University, Shenyang 110004, Liaoning, China; 2.Panzhihua New Steel and Vanadium Co., Ltd., Panzhihua 617000, Sichuang, China; 3.Rail and Section Plant of Baotou Steel Union, Baotou 014010, Nei Monggol, China |
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Abstract The horizontal straightening of 60 kg/m rail on a straightening machine with eight rollers was simulated by ANSYS/LSDYNA software, the change of width at rail head and rail base and the height of rail were calculated and the practical cross section dimensions of rail were measured before and after straightening. Width increment at rail head was in the range of 0.10.5 mm with a probability of 82.9%. Width increment at rail base was in the range of 0.10.4 mm with a probability of 68.6%. Height reduction of rail was in the range of 0.20.6 mm with a probability of 71.4%. Reasonable agreements were achieved between simulated and measured results. The decrease in reduction and camber of rail could reduce the straightening effect on the cross section dimensions of rail.
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Received: 01 January 1900
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| [2] |
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| [3] |
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| [4] |
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| [5] |
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| [6] |
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2009, Vol. 44 
