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论文类型：期刊论文

发表时间：2010-02-01

发表刊物：IRONMAKING & STEELMAKING

收录刊物：SCIE、EI、Scopus

卷号：37

期号：2

页面范围：112-118

ISSN号：0301-9233

关键字：Continuous casting; Slab; Hydraulic oscillator; Mould friction

摘要：It is very important to obtain reliable lubrication from casting powder both at the meniscus and in the gap between strand and mould as it affects slab surface quality and caster productivity. With knowledge of mould friction, a quantitative insight into the behaviour of powder during caster operation is possible. In the present research, the friction was studied based on a slab continuous caster equipped with hydraulic oscillators. The effects of mould oscillation and the abrupt change of casting speed on mould friction force were evaluated, and the characteristics of lubrication behaviour in a casting sequence were investigated. In particular, a comparison between the mould friction force between sinusoidal oscillation mode and non-sinusoidal oscillation mode was made. Finally, the characteristics of friction before a breakout are discussed. The experimental and analytical results may contribute to the development of mould friction online measurement and more clearly learn the lubrication behaviour in different conditions.