特种合金极薄带轧制工艺与技术装备的研制

doi:10.3901/JME.2024.04.357

摘要/Abstract

摘要： 特种合金极薄带在国民经济的诸多行业均有着广泛的应用。在对材料特性和边界条件系统分析的基础上,突破传统的加大轧制力以获取更薄带材的方式,完善特种合金极薄带的轧制工艺和程序控制要求并研发相应的专有轧制装备。创新张力加权轧制工艺并研发相应的高精度级联动力系统及其微张力控制算法,解决大张力输出和小张力波动的矛盾以及非稳态轧制阶段小张力波动的工艺要求。建立适用于特种合金极薄带的轧制模型,包括最小可轧厚度模型、自动厚度控制系统和自动板形控制,这为突破最小可轧厚度和实现高效精密提供了理论基础。而且开发适用于该张力加权轧制工艺的技术装备,尤其研发大张力卷取机及其锥套自适应式外支撑,相应设备具有刚度高和稳定性好的特点。基于对轧制工艺与技术装备的研究,突破带材的最小可轧厚度极限,并开发厚度0.01 mm的3系不锈钢带的稳定的张力加权轧制工艺,而且研究张应力和轧制力与带材厚度的量化关系。张应力是突破特种合金极薄带最小可轧厚度的关键因素,而且张力波动幅度对特种合金极薄带能否稳定轧制起决定性作用。

关键词: 特种合金, 极薄带, 轧制工艺, 技术装备

Abstract: Special alloy strip with ultra-thin thickness has been widely used in many industries of national economy. Based on analysis of material characteristics and boundary conditions, traditional way of increasing rolling force to obtain thinner strip is broke through. Rolling process and program control requirements for special alloy strip with ultra-thin thickness are improved and also corresponding special rolling equipment is developed. Tension weighted rolling process which includes high-precision cascade dynamical system and its micro-tension control algorithm is innovated, so contradiction between large tension output and small tension fluctuation as well as technological requirements of small tension fluctuation in unsteady rolling stage are solved. Rolling model suitable for special alloy strip with ultra-thin thickness is established, including minimum rolling thickness model, automatic thickness control system and automatic profile control, which provides theoretical basis for breaking through minimum rolling thickness and realizing efficient precision rolling. And also technical equipment suitable for this rolling process is established. In particular, high tension coiler and its cone-sleeve adaptive support are developed,and corresponding equipment has the characteristics of high rigidity and good stability. Due to research of rolling process and technical equipment, the limit of minimum rolling thickness of strip is broken through, and stable tension weighted rolling process of 3 series stainless steel strip with thickness of 0.01 mm is developed,also quantitative relationship between tensile stress, rolling force and strip thickness is researched. Tensile stress is the key factor to break through the minimum rolling thickness of special alloy strip with ultra-thin thickness, and amplitude of tension fluctuation plays a decisive role in the stable rolling of this kind of strip.

Key words: special alloy, strip with ultra-thin thickness, rolling process, technical equipment

中图分类号:

TG156

刘松, 李俊辉, 刘云飞, 计江, 谢维维, 窦锋, 刘江林, 柳宇. 特种合金极薄带轧制工艺与技术装备的研制[J]. 机械工程学报, 2024, 60(4): 357-368.

LIU Song, LI Junhui, LIU Yunfei, JI Jiang, XIE Weiwei, DOU Feng, LIU Jianglin, LIU Yu. Research on Rolling Process and Technical Equipment of Special Alloy Strip with Ultra-thin Thickness[J]. Journal of Mechanical Engineering, 2024, 60(4): 357-368.

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