真空熔炼炉设计.docVIP

毕业设计论文 学 院 机电工程与自动化学院 专 业 机械制造及自动化(专升本) 学 号 124A1144 姓 名 郭利娜 指导教师 任伯航 日 期 二○一五年 九月十三日 摘要 目前，随着航天、航空、军工、核电、能源、化工等领域的不断向前发展，不仅特殊钢、精密合金、电热合金、高温合金等特殊合金的需求量越来越大，而且对其质量要求更加苛刻，这就促进了真空感应炉的发展与研究.与其他冶炼方法相比，真空感应熔炼炉能更精确的控制所炼钢种或合金的成分；钢或合金中气体和非金属夹杂物的含量水平圆圆低于其他熔炼方法；真空熔炼炉的温度相对来来说比较容易控制，而控制压力水平就是真空感应熔炼炉最显著的特点。 本设计研究的对象是25KG的真空感应熔炼炉装置的设计，包括此炉的总功率的热工计算、中频电源的电参数技术计算，坩埚材质的选择以及坩埚尺寸的设计，感应器材料的选择与机构设计，真空系统泵阀的选择以及真空管的布置，炉壳的强度校核，冷却系统的设计等，本课题的设计论述出来各部分的设计方法与原则以及计算设计过程和必要的强度校核。 关键词 真空 感应炉 设计 ABSTRACT At present，with the continuous development of some areas，such as acrospace，avaiation，military industry ，nuclear power，energy and chemical area，not only the demand of special alloy –heat resisting alloy ，high temperature alloy， corrosion resistant alloy—areas increasing，but the quality requirements of this special alloy are becoming more stringent.All of this promoted the development and research of vaccum induction furnace. Compared with other smelting method, vaccum induction smelting furnace is able to precisely control composition of steel or alloy, and gas and nonmetallic inclusions in steel or alloy are far below other smelting method.The temperature of the vacuum induction furnace is relatively easy to control, and control the pressure level is the most distinguishing feature of vacuum induction furnace. This research sets the target of 10 kg vacuum intermediate frequency induction furnace。 This research sets the target of 25 kg vacuum intermediate frequency induction furenace equipment design，including thermal calculation of Power，electric paremeters calculation of medium frequency power supply， The selection of crucible material and size design ，material selection and structure design of sensors，selection of vacuum pump valve and the arrangement of vacuum line，strength check of shell，cooling system design. The topics addressed in the design of the various components of the design principles and