【作者】 王康健； 王欣； 郜志英； 张清东；

【机构】 宝山钢铁股份有限公司； 北京科技大学机械工程学院；

【摘要】 高强薄带钢在高速冷连轧生产过程中,设备安全、生产效能和产品质量都受到轧机振动及轧制失稳的影响和制约,随产品规格和工艺条件的不同,振动失稳现象表现为随机和不确定性,但随着速度提升振动又表现为失稳的必然性,产品越薄问题越突出,严重影响生产效率和产品质量。本文针对某冷轧机生产现场中的不同产品规格,通过对轧件等效刚度和临界速度的计算,分析了轧件厚度和变形抗力对轧机振动及失稳的影响,并提出通过间断升速、降速以及改善润滑等工艺措施实现对振动的抑制。更多还原

【Abstract】 In the production process of cold rolling of thin steel sheets, such as automobile plate and tin plate,Equipment safety, production efficiency and product quality are affected and restricted by rolling mill vibration and rolling instability. By focusing on different production standards of a certain cold rolling machine on production site, the equivalent stiffness of the strip and the critical velocity is calculated, and the influence of rolling piece thickness and strain resistance on the vibration and instability of rolling machine is analyzed. Finally some technology strategies for suppressing vibration are presented, such as discontinuous speed lift, lowing speed and improving lubrication condition.更多还原