学术
粉末冶金态铍在北京谱仪束流管中的应用
郑莉芳[1,2] 纪全[2] 王立[1] 李勋锋[1,2] 刘建平[3,1]
[1]北京科技大学机械工程学院,北京100083 [2]中国科学院高能物理研究所,北京100049 [3]天津大学,天津300072
摘 要:
根据北京谱仪（BESⅢ）束流管对材料物理性能的要求,对几种材料的物理性能进行比较后,选择粉末冶金态铍作为BESⅢ束流管的中心管材料。采用失重法对粉末冶金态铍在1号电火花加工油中的耐腐蚀性能进行研究,结果表明：粉末冶金态铍在1号电火花加工油中具有较好的耐蚀性,其腐蚀速率由初始的4.18×10^-7kg2·m^-2·h^-1逐渐变小,并稳定为1.54×10^-7kg·m^-2·h^-1;在束流管10 a的设计寿命内,粉末冶金态铍的最大腐蚀深度估算值为19.9μm,该值是BESⅢ束流管中心管最小厚度600μm的3.32%,满足BESⅢ的工程运行要求。[著者文摘]
文章出处:
《原子能科学技术》-2008年42卷1期 -87-91页
栏目信息:
文献标识码:
A
文章编号:
1000-6931（2008）01-0087-05
相关文章:
Application of Powder Metallurgy Beryllium in Beijing Spectrometer Ⅲ Beam Pipe
ZHENG Li-fang,JI Quan,WANG Li,LI Xun-feng,LIU Jian-ping（1.Mechanical Engineering School,University of Science and Technology Beijing,Beijing 100083,China;2.Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;3.Tianjin University,Tianjin 300072,China）
Abstract:
According to the requirements of Beijing Spectrometer Ⅲ（BESⅢ） beam pipe,the physical properties of several materials were compared and powder metallurgy beryllium was chosen as the material for the central pipe of the BESⅢ beam pipe.Weight-loss method was used to study the corrosion of powder metallurgy beryllium in No.1 oil for electron discharge machining（EDM-1）.The result shows that the anticorrosive property of powder metallurgy beryllium in EDM-1 is high.The corrosion rate,4.18×10^-7 kg·m^-2·h^-1 in initial stage,becomes small with the lapse of the time and stabilizes at 1.54×10^-7 kg·m^-2·h^-1 at last.It can be estimated that the powder metallurgy beryllium will be corroded 19.9 μm in the depth in 10 years and it accounts for 3.32% of the smallest thickness of the central pipe,which satisfies the requirements of the BESⅢ.[著者文摘]
Key words:
beryllium;corrosion;beam pipe;Beijing Spectrometer Ⅲ
基金资助:
中国科学院重大基金资助项目（KJ95T-03）
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