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| Control of the key factors on the longitudinal crack on beam blank |
| HU Ya-lin |
| Rizhao Iron and Steel Holding Group Co.��Ltd.��Rizhao 276806��Shandong��China |
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Abstract Beam blank continuous casting is susceptible to initiate longitudinal crack�� and the factors for the initiation of this crack defect can be attributed to seven aspects. The method of orthogonal collocation is used to deal with different processing levels�� and the experiment and comparative analysis are carried out. The results show that the main factor that affects the initiation of longitudinal crack on beam blank in the current period is cooling intensity and equipment precision. By improving the cooling process and the accuracy of equipment�� as well as the problems in the production�� the initiation of the bulk longitudinal cracks is solved.
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Received: 20 July 2015
Published: 13 January 2016
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2015, Vol. 40 
