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气体介质
    The Ceramic-to-Metal Seal Production Technology and Gas Media
    陶瓷-金属封接生产技术与气体介质——降低封接成本的一种有效方法
    Study on the Plasma Channel of Ultrasonic Vibration Aided Gas Media Electrical Discharge Machining
    超声振动辅助气体介质电火花加工放电通道的研究
    In this dissertation, the charge forming and moving process in the gas media EDM is analyzed on the basis of Tangseng theory. The theory that ions collision in gas media between the electrodes will change to bright light is introduced.
    本文从离子碰撞理论出发,分析了气体介质从离子碰撞电离理论开始,进而转化为流光击穿的过程,系统分析了气体介质的电导和击穿的全过程;
    Electric field strength and electric displacement, for the electrically permeable slit crack, have types of singularity at the crack tip. Electric field strength and electric displacement are all constants along crack face and not relate to the dielectric constant of gas media in the cavity.
    对平面电渗透型裂纹,切向电场强度和法向电位移沿裂纹面为常数,在裂纹尖端有奇异,电弹性场与孔洞内气体介质的介电常数无关.
    This paper is reviewed for importance of gas media used in ceramic-to-metal seal technology,it point out that increasing N 2 content of working Gas media made c eramic-to-metal seal safe production,decreaing cost and guarantee quality.
    叙述了气体介质在陶瓷 金属封接技术中的重要性 ,提出增加工作气体中的N2 含量可以增加其安全生产指标、降低封接成本 ,并保证金属化质量。
    Research and application of technology and equipment of gas purge of Al melt have been eviewed. Influence of gas media,gas purge process on purification of Al melt as well as development tendency of such equipment have been expounded with discussion about comprehensive guarantee measures for increasing refining quality.
    综合分析铝液吹气精炼工艺与设备的研究及使用状况,阐述了气体介质、吹气精炼工艺对铝液除气、除杂的影响,以及吹气精炼设备的发展趋势,探讨了提高铝液精炼质量的综合保障措施。
    Analyzed the machining performance of different gas media on base of physical characteristics of different gases media and found that the MRR machining in oxygen medium is the highest.
    使用氧气介质能够实现快速电火花加工,并根据不同气体的物理性能对不同气体介质的加工性能进行了分析。
    Dielectric constant of solid and gas media was tested with microcontroller technology. Its measure principle,method and electrocircuit were introduced. The experimental data collection and process program were realized with Delphi 7.0 under Windows and the intelligentized experimental measure system based on USB interface.
    利用单片机技术测量了固体和气体介质的介电常数,给出了测量原理、实验测量方法以及测量电路原理图,并且在W indow s环境下利用D e lph i 7.0可视化编程语言,实现了U SB接口通讯的实验数据上位机采集与处理过程,构成了基于U SB接口的智能化实验测量系统,并通过实验测试了该系统的可靠性。
    This paper is reviewed for importance of gas media used in ceramic-to-metal seal technology, it point out that increasing N2 content of working Gas media made ceramic-to-metal seal safe production, decreeing cost and guarantee quality.
    叙述了气体介质在陶瓷-金属封接技术中的重要性,提出增加工作气体中的N_2含量可以增加其安全生产指标、降低封接成本,并保证金属化质量。
 

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