微米级稀有金属箔材研究现状  

Research Status of Micron Rare Metal Foil

作　　者：张聪惠[1] 薛少博 肖桂枝[1] 颜学柏[2] 舒滢[2] ZHANG Conghui;XUE Shaobo;XIAO Guizhi;YAN Xuebai;SHU Ying(College of Metallurgical Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China;Northwest Institute For Non-ferrous Metal Research,Xi’an 710016,China)

机构地区：[1]西安建筑科技大学冶金工程学院,西安710055 [2]西北有色金属研究院,西安710016

出　　处：《材料导报》2020年第13期13139-13145,共7页Materials Reports

基　　金：国家自然科学基金(51674187,51804241);陕西省自然科学基础研究项目(2016JM5032);陕西省教育厅重点实验室研究项目(17JS065);东北大学轧制技术及连轧自动化国家重点实验室开放课题基金项目(2016004)。

摘　　要：随着航空航天、电子通讯、军事化工、核工业及海底电缆铺设等领域的快速发展,对高质量稀有金属箔材的需求日益增多。在稀有金属箔材定义中,主要是针对厚度小于0.02 mm的产品,其中将厚度小于0.01 mm的产品称为微米级产品。与此同时,对微米级稀有金属箔材的制备技术和设备也提出了更高的要求,其研究与生产成为本行业的研究热点。箔材的制备技术主要有机械轧制、电解沉积法、磁控溅射法及真空热蒸镀法等,其中机械轧制法的应用最为广泛。在微米级箔材轧制过程中,目标尺寸厚度及精度的控制、板型的选择、提高表面光洁度、减少断带、实现长卷连续轧制是关键。通过对箔材轧制中出现的问题进行了探讨,分析总结了保证箔材顺利轧制的三个工艺关键技术:(1)箔材板型控制技术;(2)箔材轧制张力稳定性控制技术;(3)轧辊磨削工艺技术。当轧件厚度小于某一厚度值时,无论是加大设备轧制力,还是提高人员对设备的操作能力,都无法再继续减小轧件的厚度,则这个厚度称为最小可轧厚度。在微米级箔材轧制过程中,目前主要分为两种轧制方式,一种是同步轧制,另一种是异步轧制,并且得到了相关的轧制模型。在对微米级稀有金属箔材进行组织与力学性能表征过程中,也发现了许多与常规尺寸材料相悖的方面,对于这些现象产生的机理,还需要进一步研究。这也为后续对稀有金属箔材的研究提供了新的方向。本文介绍了国内外箔材制备技术与设备,并分析了制备微米级稀有金属过程中的关键技术研究现状。介绍了微米级箔材轧制中同步轧制与异步轧制两种轧制条件的最小轧制厚度理论。同时简单分析了微米级箔材在微观组织与力学性能方面的特有现象。With the rapid development of aerospace,electronic communications,military chemical,nuclear industry and submarine cable laying,the demand for high quality rare metal foils is increasing.In the definition of rare metal foils,it is mainly for products with a thickness less than 0.02 mm.Among them,a product with a thickness of less than 0.01 mm is referred as a micron order.Meanwhile,higher requirements have been put forward for the preparation technology and equipment of micron rare metal foil.The research and production of micron rare metal foil has become a hot spot in the industry.The preparation technology of the foil mainly includes mechanical rolling,electrolytic deposition,magnetron sputtering and vacuum thermal evaporation,among which the mechanical rolling method is the most extensive.In the micron foil rolling process,the control of the target size thickness and precision,the good shape,the smooth surface and no defects,the reduction of the broken belt,and the realization of long-roll continuous rolling are the key control points.Through the discussion of the problems in the foil rolling,the three key technologies to ensure the smooth rolling of the foil are analyzed and summarized:(1)foil plate type control technology,(2)foil rolling tension stability control technology,(3)roll grinding technology.When the thickness of the rolled piece is less than a certain thickness value,whether the rolling force is increased or the capacity of the equipment is increased,the thickness of the rolled piece cannot be further reduced,this thickness is called the minimum rollable thickness.In the micron foil rolling process,there are currently two main rolling methods,one is synchronous rolling,the other is asymmetric rolling,and the relevant rolling model is obtained.In the process of preparing micron-sized rare metal foils,many aspects that are contrary to conventional dimensional materials have also been found,and further research is needed on the mechanism of the phenomenon.This also provides a new direction for subse

关 键 词：微米级 异步轧制 稀有金属 最小可轧厚度 

分 类 号：TG335.58[金属学及工艺—金属压力加工]