TB 2494.1-1994 轨道车辆车轴探伤方法,新制车轴超声波探伤

TB1618ZBY230AZBY231,,5MHZ,3m,TS1,80%,30dB,:12,ZBY230ZBY231TS11:TB1A:20mmB,,80%,6dB,46dB,6.23dB,6.2,80%,:20mmA,80%2.5MHZ,20mm,:,,,,0.5mm,30%:,30mm/s:TB1619:1.2R,,,,,,,,,