%0 Journal Article
%T ANALYSIS OF LIQUID FRICTION MECHANISM FOR SLAB CONTINUOUS CASTING MOLD WITH HIGH CASTING SPEED<br>高拉速板坯连铸结晶器液体摩擦机理分析
%A MENG Xiangning
%A ZHU Miaoyong
%A <br>孟祥宁
%A 朱苗勇
%J 金属学报
%D 2008
%I 
%X On the basis of laws of momentum and mass conservation of liquid flux, a mathematical model to represent the liquid friction force in meniscus under non-sinusoidal oscillation was established, and a new liquid friction mechanism was proposed by solving extremum equations of liquid friction force as 2.0 m min-1 casting speed. The results show that liquid friction force was mainly influenced by the shape of flux channel, depth of molten flux pool and relative motion between oscillating mold and strand and varies with oscillation waveform. Maximum liquid friction force occurs nearby the moment of oscillation velocity equal to casting speed under an ideal state. Surface cracks formed in the positive strip time adjacent to negative strip time, and healed during the negative strip time.
%K continuous casting mold
%K high casting speed
%K liquid friction force
%K surface cracks
%K non-sinusoidal oscil<br>连铸结晶器
%K 高拉速
%K 液体摩擦力
%K 表面裂纹
%K 非正弦振动
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=F4315BCD11CC0304061FB7318EA60870&yid=67289AFF6305E306&vid=1AE5323881A5ECDC&iid=F3090AE9B60B7ED1&sid=8339CA1DD1F3C6AB&eid=839CF8520FE9DA44&journal_id=0412-1961&journal_name=金属学报&referenced_num=1&reference_num=18