多次返修对16MnR板焊接接头性能影响的试验及分析

Rewelding may effect a change in performance of the welding joint.The more the time of rewelding is,the more serious the influence is.But,it is different to the different steels in different range of thickness.In this paper based on tests,an analysis on the performance for the welding joint of 16MnR steel under different time of rewelding is presented.

自动联锁装置在X射线探伤安全防护中的应用

《放射性同位素与射线防护条例》第十一条中明确规定,射线探伤场所'其入口处必须设置放射性标志和必要的防护安全联锁、报警装置或者工作信号'。以此确保射线探伤人员及周围群众的人身安全。