连铸结晶器非正弦振动振幅的确定

特殊钢 ›› 2007, Vol. 28 ›› Issue (2): 13-15.

连铸结晶器非正弦振动振幅的确定

孟祥宁，朱苗勇，刘旭东

东北大学材料与冶金学院，沈阳110004

收稿日期:2006-09-01 出版日期:2007-04-01 发布日期:2023-03-09
作者简介:孟祥宁(1977-),男，在读博士研究生。

Determination of Non-Sinusoidal Oscillation Amplitude for Casting Mold

Meng Xiangning, Zhu Miaoyong，Liu Xudong

School of Materials and Metallurgy, Northeastern University, Shenyang 110004

Received:2006-09-01 Published:2007-04-01 Online:2023-03-09

摘要/Abstract

摘要： 利用结晶器液体摩擦力模型,结合具有最佳振动模式特点的非正弦振动形式,分析了2．0 m／min拉速时非正弦振动振幅对液体摩擦力的影响,给出了振幅选取原则和确定方法。通过对连铸1 270 mm×210 mm SPHC钢(≤0．08％C)的计算结果表明:振动采用小振幅能限制最大液体摩擦力,增大保护渣耗量,减少负滑脱时间;选定2．0m／min拉速,适宜振幅为±4 mm;随拉速提高振幅适当增大,可适时改善振动效果。

关键词: 连铸结晶器, 非正弦振动, 振幅, 液体摩擦力, 保护渣膜

Abstract: The effect of non-sinusoidal oscillation amplitude on liquid friction force in mold with casting speed 2. 0 m/min has been analyzed by a mathematical model of liquid friction combined a non-sinusoidal oscillation waveform with optimum mode virtue to get amplitude selection principle and determination method. The calculated results for 1 270 mm x 210 mm cast bloom of SPHC steel (≤0. 08C) showed that the maximum liquid friction force could be restricted by applied small amplitude, increased flux consumption, decreased negative strip time, and defined optimum amplitude ± 4 mm at cast speed 2. 0 m/min； and amplitude should be increased suitably with increasing cast speed in order to improve oscillation effect at real time.

Key words: , Concasting Mold, Non-Sinusoidal Oscillation, Amplitude, Liquid Friction Force, Flux Film

孟祥宁, 朱苗勇, 刘旭东. 连铸结晶器非正弦振动振幅的确定[J]. 特殊钢, 2007, 28(2): 13-15.

Meng Xiangning, Zhu Miaoyong , Liu Xudong. Determination of Non-Sinusoidal Oscillation Amplitude for Casting Mold[J]. Special Steel, 2007, 28(2): 13-15.

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