连铸结晶器振动阻力在线监测的应用研究
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摘要
铸坯与结晶器之间的摩擦力是反映连铸过程中结晶器润滑情况的重要参数,它主要从力的方面来研究铸坯与结晶器之间的相互作用。研究表明,结晶器摩擦力与铸坯质量、生产操作以及结晶器振动台的寿命等有很大的关系。当摩擦力的变化达到一定程度时,将会导致裂纹甚至漏钢等事故的发生。
     本文在已开发的摩擦力在线监测系统的基础上,通过大量的实践积累,从软、硬件两方面完善该系统,使它运行稳定、数据可靠、准确。同时通过对摩擦力的实时监测,进行离线研究此系统应用于实际生产的可能性,在结晶器振动系统的设备诊断和连铸生产过程的产品质量监控等方面,寻找出可应用的项目和方法,提出利用摩擦力相对值的变化规律来判定或预报铸坯表面缺陷、漏钢和设备事故等及其预防措施;利用摩擦力绝对值的变化规律为预测结晶器振动台寿命提供了一种可行的检测方法;定量或半定量地明确影响摩擦力的相关因素,如调宽、B.0报警、铸坯质量的异常事件等等。这些研究结果为将来在线应用奠定了扎实的基础。
The friction between the mold and the slab in the continuous casting is a very important parameter to reflect the continuous casting machine running well or not. It mainly studies the interaction between the mold and slab from the point of mechanics. The study shows that the mold friction has a close relationship with the strand quantities, operation and the life of quick mould change equipment. The friction, when excessive, may lead to crackle and sticking breakout.
    In the paper, based on the old on-line monitoring system, a new system has been built. And, with the in-time detection on friction force and a great deal of data analysis, the rule of friction data relative change and precautions are presented. It offers a feasible detecting method for predicting the life of quick mould change equipment. The related parameters of influence friction are determined. These results will offer a good foundation for on-line use.
引文
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    附件:在读硕士期间发表的论文如下:
    1.陈亚贤等,连铸结晶器振动阻力在线检测技术的应用研究,2001年中国钢铁年会论文集(上卷),北京,2001.10,682-685
    2.陈亚贤,姚曼,方大成,等,板坯连铸机结晶器摩擦力在线监测技术开发研究,第六届连续铸钢全国学术会议论文集,1999.8,新疆乌鲁木齐,61-69
    3.姜苍华,姚曼,杨建华,陈亚贤等,宝钢2#板坯连铸机结晶器拉坯阻力在线监测系统的设计和应用,冶金自动化,2001,Vol.25,P37-39
    4.姚曼,方大成,陈亚贤等,功率法用于板坯连铸机结晶器摩擦力在线监测的实验研究,钢铁,2001.5,Vol,36.No.5 P29-31

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