文献类型：期刊文献

中文题名：钢水流动与型筒振动耦合对离心铸造炉管壁厚的影响

英文题名：Influences of Coupling of Mould Vibration and Molten Metal Flow on Wall Thickness of Horizontal Centrifugal Casting Furnace Tubes

作者：李柳湘[1];李正美[1];展益彬[2];安琦[1]

机构：[1]华东理工大学机械与动力工程学院,上海200237;[2]卓然(靖江)设备制造有限公司,江苏靖江214500

年份：2017

卷号：43

期号：6

起止页码：878

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：北大核心:【北大核心2014】；CSCD:【CSCD_E2017_2018】；

基金：国家自然科学基金(51505148)

语种：中文

中文关键词：离心铸造;型筒;振动;钢水流动;炉管壁厚

外文关键词：centrifugal casting;mould;vibration;molten metal flow;wall thickness of furnace tubes

摘要：建立了离心铸造炉管时的钢水流动与型筒振动的耦合模型,结合传递矩阵法,利用MATLAB编程对模型进行求解,得到了各个时刻型筒的振动和内部的钢水分布情况。计算结果表明,离心铸造时的钢水分布与型筒振动相互影响。钢水倒入型筒之后,整个系统的振动性能受到影响,包括振幅和共振转速等。型筒振动会使炉管壁厚产生不均现象:型筒的偏心量越大,炉管壁厚不均程度越严重;倒入的钢水量越大,炉管壁厚不均程度越严重。
A model of coupling of mould vibration and molten metal flow is established,and the modified transfer matrix is used to solve this model.With the programming by use of MATLAB,the vibration magnitude and the molten metal flow pattern at different moments are obtained.The numerical simulating results show that the coupling between the mould vibration and molten metal flow indeed exists,and it influences the vibration characteristics of the maximum amplitude and the resonance speed when the mould rotates with filling molten metal.Unevenness of the wall thickness of the casting furnace tube occurs because of the mould vibration.The unevenness of the wall thickness becomes more severe with the increasing of mould eccentricity and the mass of molten metal filled.