板坯连铸结晶器/铸坯瞬态摩擦行为的实验研究

来源期刊：钢铁2009年第6期

论文作者：臧欣阳 王旭东 马勇 姚曼 张立

文章页码：43 - 47

关键词：结晶器摩擦力； 瞬态检测； 非正弦振动； 板坯连铸

Key words：mould friction； transient measurement； non-sinusoidal oscillation； slab continuous casting

摘    要：合理控制结晶器与铸坯间的润滑和摩擦状况是实现高效连铸技术的关键环节之一,摩擦力作为表征润滑效果的重要参数已受到广泛关注。以板坯连铸机为研究对象,对液压振动条件下结晶器和铸坯间的瞬态摩擦力进行测试和分析。探讨了瞬态摩擦力及相关参数的变化特点,并对正弦、非正弦振动方式下的摩擦力检测结果进行了对比分析,同时讨论了正常工况与漏钢发生前摩擦力的变化特点。为结晶器/铸坯摩擦行为的深入研究和优化连铸工艺等提供了实验基础和技术支持。

Abstract: It plays a key role for achieving the high speed casting to control the lubrication and friction status between mould and strand shell rationally.As an important parameter used to characterize lubrication effect,friction force has been widely obtained attention.Based on a slab caster which is equipped by hydraulic oscillators,the transient friction force between mould and strand shell was measured and analyzed.The characteristics of the transient friction force and the correlative parameters were studied,and the comparison of the friction force in sinusoidal and non-sinusoidal oscillation mode was analyzed.The variations of the friction force during normal state and before breakout were discussed.This research provided the test foundations and technical supports for deeply investigating friction behavior between mould and strand shell,and optimizing the casting variables.