氩离子激光器阴极焊接用氩气氛保护操作箱的改进

Improvements in Argon Atmosphere Protect Box for Cathode Welding of Ar^+ Lasers

原氩气氛保护操作箱太大，有死角，空气排不尽，阴极焊接氧化严重．根据流体学原理制造的新操作箱，驱气彻底，解决了阴极焊接的氧化问题．

Analyzed the problems in the argon atmosphere protect box,Invited ways to solve them,Made a new protect box and finally solved the problems.