板坯连铸结晶器及振动装置的研究  

Study on slab continuous casting mould and vibration equipment

作　　者：艾厚庄[1] 张德臣[2] 

机构地区：[1]本溪钢铁(集团)有限责任公司冷轧薄板厂,辽宁本溪117021 [2]鞍山科技大学机械工程与自动化学院,辽宁鞍山114044

出　　处：《鞍山科技大学学报》2006年第3期235-238,共4页Journal of Anshan University of Science and Technology

摘　　要：从传热学和结构力学角度,分析了结晶器的温度场和应力场,采用解析法和有限元法计算了结晶器的热应力和变形。针对原来的正弦振动机构存在的问题,提出了改进方案:采用椭圆齿轮变速器实现非正弦振动,并分析了改造后的结晶器的振动规律。同时,对结晶器与板坯之间的摩擦力加以分析。采用非正弦振动使负滑脱时间短,正滑脱时间长,结晶器向上运动速度与铸坯运动速度差较小。振痕深度大为减轻,减少坯壳与结晶器的摩擦力,减少粘结漏钢,提高连铸机拉坯速度,铸坯表面质量明显提高。The temperature and stress distribution of mould was analyzed based on heat-transfering and structive mechanics. The thermal stress and strain of mould were calculated by analysis and finite element method. The improved method was developed for the deficiencies of sinusoidal vibration devices. Variable speed device of elliptical gears was used to complete the sinusoidal vibration and the vibrative regular of the improved mould was analyzed. At the .same time, the friction between the mould and the slab was analyzed by using non-sinusoidal vibration. The positive strip time is long, the negative strip time is short. The speed discrepany between the up-moved mould and the moved slab is little,the depth of the vibration mark is reduced, the friction between the mould and the slab is reduced. Molten steel leakage by binding is reduced. The withdrawing speed of the mould is increased,and the surface quality of the slab is increased obviously.

关 键 词：结晶器 热应力 非正弦振动 摩擦力 

分 类 号：TB123[理学—工程力学] TF341.6[理学—力学]