旋转挤压设备的设计与研制

发布时间：2018-06-22 13:56

本文选题：旋转挤压 + 超细晶粒材料　；参考：《南京理工大学》2017年硕士论文

【摘要】：旋转挤压工艺是一种新型的制备超细晶有色金属材料的加工工艺。其制备过程简单易行且加工效果好,具有广阔的工业化运用前景。为了更好的推动这种加工技术的发展,旋转挤压设备的研制就具有非常重要的意义。本套旋转挤压实验设备采用典型的立式三梁四柱结构。根据研究的需要,确定制备材料的尺寸。分别采用上限法和有限元法得出挤压过程的公称压力和扭矩以及纯铜材料的变形情况,并用实验验证数据的正确性。根据模拟数据以及设计需求,确定旋转挤压设备的设计参数和整体结构形式。选取合适的电机后完成挤压设备整体外形的设计。之后根据模拟得到的挤压参数设计挤压模具及其主要零部件。并用有限元软件校核模具的强度和刚度,确定本套模具可以完成预期的挤压要求。对设备的关键部件进行结构设计。先依据传统力学的方法初步对设备关键部件进行强度和刚度校核。再进行有限元分析,验证设计和理论计算的正确性。分析结果表明机身和设备主要零部件均有较好的刚度,能很好的满足设计要求。随后进行液压系统设计。先进行系统的工况分析,得出负载和速度曲线,确定液压系统的压力、流量和电机型号等关键参数。确定系统的设计方案得出液压系统原理图。之后计算和选取液压泵、阀类元件、油管、油箱等,完成液压系统设计。在工厂对设备进行制造调试,设备最终可以顺利完成预期的设计要求。
[Abstract]:Rotary extrusion is a new process for preparing superfine-grained non-ferrous metals. The preparation process is simple and has good processing effect, and has a broad prospect of industrial application. In order to better promote the development of this processing technology, the development of rotary extrusion equipment is of great significance. A typical vertical three-beam four-column structure is used in the rotating extrusion experiment equipment. According to the needs of the research, the size of the prepared materials is determined. The nominal pressure and torque of extrusion process and the deformation of pure copper material were obtained by the upper bound method and the finite element method respectively, and the correctness of the data was verified by experiments. According to the simulation data and design requirements, the design parameters and overall structure of rotary extrusion equipment are determined. Select the appropriate motor to complete the extrusion equipment overall shape design. Then the extrusion die and its main parts are designed according to the extrusion parameters obtained by simulation. The strength and stiffness of the die are checked by finite element software, and the expected extrusion requirement is determined. Carry on the structure design to the key parts of the equipment. According to the traditional mechanics method, the strength and stiffness of the key parts of the equipment are checked. Then the finite element analysis is carried out to verify the correctness of the design and theoretical calculation. The results show that the main parts of the fuselage and equipment have better stiffness and can meet the design requirements. Then the hydraulic system is designed. The load and speed curves are obtained to determine the key parameters of hydraulic system, such as pressure, flow rate, motor type and so on. The schematic diagram of hydraulic system is obtained by determining the design scheme of the system. The hydraulic system is designed by calculating and selecting hydraulic pump, valve, tubing, oil tank and so on. Commissioning the equipment in the factory, the equipment can successfully complete the expected design requirements.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG375

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