The magnetic memory method, through examining the leakage magnetic field on the surface of the parts, can effectively find out the defects in fillet joints, which can diminish the leakage.

• 磁记忆法通过对部件表面漏磁场的检测,可以有效检测管座角焊缝中存在的缺陷,减少泄漏现象的发生。