宽铅带连铸技术及其实验研究

发布时间：2018-08-27 10:26

【摘要】：宽铅带双辊连铸设备是铅蓄电池新生产工艺关键设备之一。虽然,从连铸原理上来说与近年发展起来的薄板连铸技术没有本质上区别,但是,由于铅的性质与其他金属材料不同,加上对连铸板厚和质量的要求不同,多年来国内一直未能很好的解决“宽铅带连铸技术”设计问题。课题组受江苏三环实业有限公司委托,就“宽铅带连铸技术及其实验研究”问题展开研究。课题主要研究内容如下： (1)课题首先探讨了与本课题相关的国内外研究发展现状,在分析研究的基础上确立了本课题的主要研究内容及解决问题的基本思路。 (2)根据企业对产品设计要求,依据国内外研究现状,对宽铅带连铸技术进行了方案比较设计,最终确立了宽铅带双辊连铸技术优选方案。并对其成型辊、侧封板等关键结构进行了方案设计。 (3)针对优选方案,对宽铅带双辊连铸过程连铸区进行了温度场和流体场的分析,并构建了其三维温度场和流体场的耦合数学模型。 (4)利用Flow Simulation软件对宽铅带双辊连铸过程连铸区内的热流场进行了有限元分析,通过数值模拟方法获得了工艺参数对连铸区内流场和温度场的影响规律,为铸轧工艺参数的确定奠定了理论基础。 (5)研发制备了具有自主知识产权的宽铅带双辊连铸设备,以数值模拟给出的工艺参数规律为基础,确定了合理的铸轧工艺参数,并通过宽铅带双辊连铸实验,获得了符合商业要求的铅带坯,同时验证了数值模拟结果的准确度。课题主要创新点： (1)根据企业要求,首先构建了国内首台,铸带宽320mm、带厚10mm的宽铅带双辊连铸机设备方案。 (2)根据双辊连铸技术要求,通过对双辊连铸机传热学和流体力学的分析,构建了其热流数学耦合模型,为宽铅带双辊连铸设备的设计、生产和运行奠定了理论基础。
[Abstract]:The wide lead belt two-roll continuous casting equipment is one of the key equipments in the new production process of lead storage battery. Although the principle of continuous casting is not fundamentally different from the thin plate continuous casting technology that has been developed in recent years, since the nature of lead is different from that of other metal materials and the requirements for thickness and quality of continuous casting plates are different, For many years, the design problem of wide lead strip continuous casting technology has not been solved well in our country. Entrusted by Jiangsu Sanhuan Industrial Co., Ltd, our research group is concerned with the problem of "wide lead strip continuous casting technology and its experimental study". The main contents of the research are as follows: (1) the current situation of research and development at home and abroad related to this topic is discussed in the first place. On the basis of the analysis and research, the main research contents and the basic ideas of solving the problem are established. (2) according to the requirements of the enterprise for product design, according to the current research situation at home and abroad, The scheme comparison and design of wide lead strip continuous casting technology was carried out, and the optimum selection scheme of wide lead strip double roll continuous casting technology was finally established. The key structures such as forming roll and side sealing plate are designed. (3) the temperature field and fluid field in the continuous casting area of wide lead belt double roll continuous casting process are analyzed for the optimal selection scheme. The coupled mathematical model of 3D temperature field and fluid field is constructed. (4) finite element analysis of heat flow field in continuous casting area of wide lead strip two-roll continuous casting process is carried out by using Flow Simulation software. The influence of process parameters on flow field and temperature field in continuous casting is obtained by numerical simulation. It lays a theoretical foundation for determining the technological parameters of casting and rolling. (5) A wide lead strip double-roll continuous casting equipment with independent intellectual property rights has been developed, which is based on the rule of process parameters given by numerical simulation. The reasonable technological parameters of casting and rolling were determined, and the commercial lead strip billet was obtained by the experiment of wide lead strip double roll continuous casting, and the accuracy of the numerical simulation results was verified at the same time. The main innovations of this paper are as follows: (1) according to the requirements of the enterprise, the first domestic equipment scheme of the wide lead belt double roll continuous casting machine with thick 10mm is first constructed. (2) according to the technical requirements of double roll continuous casting, Based on the analysis of heat transfer and hydrodynamics of two-roll continuous casting machine, the mathematical coupling model of heat flux is constructed, which lays a theoretical foundation for the design, production and operation of two-roll continuous casting equipment with wide lead belt.
【学位授予单位】：苏州大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TG249.7;TG291

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