HL-2M真空室制造中的焊接与磁导率控制技术

Welding and permeability control technology in HL-2M vacuum vessel manufacturing

以HL-2M真空室研制实践为基础,介绍了Inconel625材料的高气密性焊接工艺措施,该工艺措施能有效减少焊缝漏点的出现,保证了真空室运行时的极限真空度能稳定达到10-6Pa;另外,介绍了316L奥氏体不锈钢在加工过程中的磁导率控制技术,使加工后的零部件相对磁导率保持在μ<1.04。

Based on the development practice of HL-2M vacuum vessel,this paper introduces the high air tightness welding process of Inconel625,which can effectively reduce the occurrence of weld leakage and ensure that the ultimate vacuum of the vacuum vessel can reach 10-6Pa.In addition,the permeability control technology of 316L in the manufacturing process is introduced,so that the relative permeability of parts after processing is kept atμ<1.04.