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Design of the Vacuum Feedthrough for the EAST ICRF Antenna
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作者 杨庆喜 宋云涛 +1 位作者 武松涛 赵燕平 《Plasma Science and Technology》 SCIE EI CAS CSCD 2011年第2期252-256,共5页
Detailed design of the vacuum feedthrough for the ion cyclotron radio frequency (ICRF) antenna in EAST, along with an electro-analysis and thermal structural analysis, is pre- sented. The electric field, the voltage... Detailed design of the vacuum feedthrough for the ion cyclotron radio frequency (ICRF) antenna in EAST, along with an electro-analysis and thermal structural analysis, is pre- sented. The electric field, the voltage standing wave ratio (VSWR) and the stresses in the vacuum feedthrough are studied. A method using the rings of oxygen-free copper as the cushion and macro- beam plasma arc welding is applied in the assembly to protect the ceramic from being damaged during welding. The vacuum leak test on the prototype of vacuum feedthrough is introduced. 展开更多
关键词 vacuum feedthrough ICRF antenna RF macro-beam plasma arc welding vacuum leak test
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拱顶储罐单盘式内浮盘更换施工工艺改进 被引量:2
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作者 王益铭 王海军 彭志刚 《焊管》 2022年第8期61-64,共4页
拱顶罐区检修施工现场一般远离厂区道路,且由于内浮盘板较薄,大跨距吊运浮盘易造成构件变形,不仅影响内浮盘焊接质量,而且影响内浮盘接液能力。通过设计临时通道倒运工装和改变浮顶临时胎具的搭设方式,提高了单盘板铺设的平整度;将环形... 拱顶罐区检修施工现场一般远离厂区道路,且由于内浮盘板较薄,大跨距吊运浮盘易造成构件变形,不仅影响内浮盘焊接质量,而且影响内浮盘接液能力。通过设计临时通道倒运工装和改变浮顶临时胎具的搭设方式,提高了单盘板铺设的平整度;将环形船舱在厂房内进行分段模块化制造,控制内浮盘组装及焊接顺序,采用细丝熔化极半自动气体保护焊对单盘板及环舱搭接角焊缝进行焊接等工艺措施,有效控制了内浮盘的焊接变形。通过经济效益对比分析,改进后的施工工艺高效、快捷,经济效益显著。 展开更多
关键词 拱顶储罐 内浮盘 检修更换 焊缝真空试漏
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