工程设计学报Issue(6)：507-511,5.DOI:10.3785/j.issn.1006-754X.2013.06.010
压力和温升速率对摩擦提升机衬垫线膨胀系数的影响
Effect of load and heating rate on the coefficient of linear expansion of f riction lining in a mine hoist
摘要
Abstract
In view of the serious high speed slide of a mining friction hoist ,aiming at calculating the lining's thermo-stress accurately ,the most commonly used lining G was studied on thermal mechanical analyzer(ZRPY-300) ,and the effect of load(0-10 N) and heating rate(1-5 ℃/min) on coefficient of linear expansion were analyzed .Experimental results show that the coefficient of linear expansion increases with the temperature increasing under the certain load and heating rate ,and w hen the temperature reaches to 120 ℃ ,the curve occurres transition and then decrea-ses gradually .When the temperature reaches to 195 ℃ ,the curve occurres the second transition and then increases again .The coefficient of linear expansion is obviously with the load increasing under a certain heating rate ,and the coefficient of linear expansion is complexity with the heating rate increasing under a certain load .Finally the fitting equation is obtained by the multiple re-gression analysis .Based on this study ,the experiment results can supply the basic data for the design of high-performance lining .关键词
摩擦衬垫/摩擦提升机/线膨胀系数/压力/温升速率Key words
friction lining/friction hoist/coefficient of linear expansion/load/heating rate分类
矿业与冶金引用本文复制引用
李同清,彭玉兴..压力和温升速率对摩擦提升机衬垫线膨胀系数的影响[J].工程设计学报,2013,(6):507-511,5.基金项目
国家自然科学基金资助项目（51105361）；中国矿业大学青年科技基金资助项目（2010QNA25）． （）
