Novel Analytical Model of Mean Temperature and Experimental Research on the Rail Universal Rolling

作     者：DONG Yonggang ZHANG Wenzhi SONG Jianfeng 

作者机构：College of Mechanical Engineering Yanshan University Qinhuangdao 066004 China 

出 版 物：《Chinese Journal of Mechanical Engineering》 (中国机械工程学报（英文版）)

年 卷 期：2009年第22卷第3期

页      面：376-383页

核心收录：

学科分类：080503[工学-材料加工工程] 07[理学] 0817[工学-化学工程与技术] 08[工学] 070601[理学-气象学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0706[理学-大气科学] 0802[工学-机械工程] 0811[工学-控制科学与工程] 0801[工学-力学（可授工学、理学学位）] 080201[工学-机械制造及其自动化] 

基　　金：supported by National Natural Science Foundation of China (Grant No. 50775196) Doctor Foundation of Ministry of Education of China (Grant No. 20070216006) Special Sponsored Item of Hebei Provincial Natural Science Foundation of China (Grant No. 08B017) 

主　　题：mean temperature light rail universal mill rolling experiments surface temperature 

摘      要：For building the analytical model of mean temperature in rail universal rolling, the cross-section of workpieces and the profile of horizontal roll and vertical roll are simplified rationally. The mean temperature of the web of rail, the top of rail and the base of rail are considered individually. The temperature rises for plastic deformation and friction incorresponding deformation zone, the temperature drop for contact is calculated on the base of variation principle and energy conservation law. Then the mean temperature is obtained. For verifying the theoretical model, the 18 kg/m light rail universal rolling experiments are accomplished in Yanshan University Rolling Laboratory, China and the surface temperature is measured. The surface temperature is not exact enough to express the true temperature and the mean temperature can show the status of the true temperature basically. So the mean temperature can be used to express the true temperature and this theoretical model and its results can be applied as an important reference to control the temperature of rail universal rolling and the heat treatment of the rolled rail.