三位一体真空焊接炉的设备开发及研究

发布时间：2018-03-09 18:03

本文选题：三位一体　切入点：真空　出处：《长安大学》2017年硕士论文　论文类型：学位论文

【摘要】：材料的加工,成型总是离不开热处理,同种金属、不同种金属之间的焊接也离不开加热设备。随着加速器技术、Feedthrough焊接技术的快速发展,对它们焊接质量提出了更高的要求,装备的设备要求达到高真空指标,同时焊缝表面要求光洁,因此加热焊接设备的研究就显得十分有意义。目前钎焊、扩散焊、氢焊三种焊接方法,分别是三台功能不同真空焊接炉来实现的,而且设计焊接工艺、工装复杂,效率比较低,每台设备焊接材料有局限性,设计生产成本高,因此对于真空钎焊、真空扩散焊和氢焊三种焊接技术集于一身的多功能的自动化焊接炉设计与研究具有广阔的发展前景。本文对市场上的真空焊接设备进行了初步的调查与分析,在其研究的基础上重新进行设备的设计与分析。首先本文对设计三位一体真空焊接设备作了简介。然后利用Inventor对炉体进行了三维模型的建立,结构特点分析,关键真空获得设备的选型,真空焊接工艺的研究和关键部位设计的应力计算分析与校核。结果表明,炉体设计的结构和材料选择合理。其次,为了更形象直观了解设备稳定运行时,炉体强度和隔热屏传热的情况,基于ANSYS做了炉体强度分析和隔热屏在热辐射传递情况下的温度分布情况。进一步验证了设备设计合理性。另外,以PLC为主控制器,进行了三位一体真空设备控制系统的搭建,结合实际对控制系统的各组成部分作了介绍、器件选择的原则、控制系统方案的确定,利用硬件平台对设计的真空机组部分程序进行了调试,结果表明,满足三位一体真空设备的动作要求。最后,利用了STEP7对真空机组部分程序做了在线模拟和联合设计的监控画面做了远程控制模拟仿真,结果同样满足系统要求。
[Abstract]:The processing and forming of materials are always inseparable from heat treatment, and the welding between the same metal and different metals is also inseparable from the heating equipment. With the rapid development of the accelerator technology and the technology of Feedthrough welding, the quality of their welding has been put forward higher requirements. The equipment of the equipment must meet the high vacuum index and the weld surface should be smooth and clean, so the research on the heating welding equipment is of great significance. At present, there are three welding methods: brazing, diffusion welding and hydrogen welding. It is realized by three different vacuum welding furnaces with different functions, and the welding process is designed, the tooling is complex, the efficiency is relatively low, the welding material of each equipment is limited, the design and production cost is high, so for vacuum brazing, The design and research of vacuum diffusion welding and hydrogen welding multifunctional automatic welding furnace have broad development prospects. This paper makes a preliminary investigation and analysis of vacuum welding equipment in the market. On the basis of its research, the design and analysis of the equipment are redone. Firstly, the design of the trinity vacuum welding equipment is introduced in this paper. Then, the three-dimensional model of the furnace body is built by using Inventor, and the structural characteristics of the furnace body are analyzed. The selection of key vacuum acquisition equipment, the study of vacuum welding process, and the stress calculation analysis and verification of key parts design. The results show that the structure and material selection of furnace body design is reasonable. Secondly, In order to understand the strength of furnace body and heat transfer of heat insulation screen more vividly and intuitively when the equipment is in stable operation, Based on ANSYS, the strength analysis of furnace body and the temperature distribution of heat insulation screen under the condition of heat radiation transfer are done. The rationality of the design of the equipment is further verified. In addition, the trinity vacuum equipment control system is built with PLC as the main controller. The components of the control system are introduced, the principle of device selection, the scheme of the control system are determined, and some programs of the vacuum unit are debugged by using the hardware platform. The results show that, Finally, the STEP7 is used to simulate part of the vacuum unit program online and the monitoring screen of joint design is simulated by remote control simulation. The results also meet the requirements of the system.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG43

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