真空凝壳炉电源稳定性影响因素的分析  

Analysis of the Influencing Factors on the Stability of Vacuum Skull Furnace Melting Energy Supply

作　　者：孙堂敏[1] 

机构地区：[1]北京百慕航材高科技股份有限公司,北京100094

出　　处：《冶金设备》2014年第1期46-49,共4页Metallurgical Equipment

摘　　要：针对真空熔炼钛合金精密铸件大功率电源电流不稳定的现状,通过调试上位机的工艺曲线及示波器电流变化曲线,分析了弧电压和弧电流之间的耦合关系及其对熔速控制的影响、坩埚比对电源稳定性的影响,得到了弧电流的平稳调节是减小耦合的主要手段的结论及提出了合理的坩埚比建议。该研究成果为真空凝壳炉安全操作提供了理论依据。In view of the present situation of vacuum melting titanium alloy precision castings of high power current is not stable , through debugging the curve process of computer and oscilloscope current change , analyzing the influence the coupling relationship between arc voltage and arc current and the melting speed control on the stability of power supply of the crucible ratio , the stable control of arc current is the main way to reduce the coupling of the conclusions and put forward reasonable suggestion for the crucible ratio .The research results provide the theoretical basis for the safe operation of the vacuum skull furnace .

关 键 词：真空凝壳炉电源 弧电流 熔速 坩埚比 稳定性影响 

分 类 号：TG232.6[金属学及工艺—铸造]