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| Influence of initial temperature difference on high strength strip buckling in laminar cooling |
| SONG Xiao-fang，HE An-rui，QIU Zeng-shuai |
| （Engineering Research Institute，University of Science and Technology Beijing，Beijing 100083，China） |
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Abstract Because of bilateral wave on high strength strip after laminar cooling for high temperature difference between edge and central area，initial temperature difference experimental devices were built up to measure residual stress in the length direction under different conditions. Then，the model of strip stability analysis was built，and analytical method was used to calculate the critical residual stress when the buckling of strip happens. According to the critical residual stress and fit result of initial temperature difference and residual stress，the critical initial temperature difference was calculated，which is 40 ℃ and the result is important to guide the production.
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Received: 22 July 2015
Published: 26 April 2016
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2016, Vol. 51 
