8～15mm厚钢板对接焊缝超声检测探头的选择

815mm(,138008)SELECTIONOFPROBESFORULTRASONICINSPECTIONOFTHEBUTTWELDEDSEAMSINTHESTEELPLATESWITHTHICKNESSOF815mmLIDe2jiu(BoilerandPressureVesselTestStation,QianguoOilRefinery,SongyuanJilin138008,China):TG115.28:B:100026656(2002)1120500202K,L815mm11,,,L,13mm13mmL=1820mm,9mm9mmL=1012mm,K,K2.53.0,,,,,,,,,,,,,KL,,,,1GB1501998,23mm,,:20012072063mm,,3mm;2mm,,4mm,,3mm(1),(T-3)Kb2+L(1)Tb1V(2),bb=2Ttg+4mm30(1)1,L=8mm5MHz6mm6mm,L5mmK215;L=10mm5MHz6mm6mm,L6mmK2;L=12mm215MHz7mm9mm,L7mmK2;L=0052411200211NDTVol.24No.11Nov.2002©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.21(1)KmmbTK4567891482.22.42.62.83.03.216101.71.852.02.142.282.718121.441.551.661.771.882.020141.271.361.451.541.631.7221151.21.291.371.451.541.6214mm215MHz7mm9mm,L6mmK1.5;L=15mm2.5MHz7mm9mm,L7mmK1.5,3mm,1,KT,KT2,,3mm(3),(T+3)K=b2+L(2)(T+3)KbP2+L,,434(T+3)KbP2+L,,,(2)22(2)KmmbTK45678914811.091.181.271.361.4516100.9211.071.151.231.318120.860.9311.061.21.2620140.820.880.9411.051.1121150.80.860.910.971.021.08,L=8mm5MHz6mm6mm,L=4mmK1;L=10mm5MHz6mm6mm,L=5mmK1;L=12mm2.5MHz7mm9mm,L=6mmK1;L=1415mm2.5MHz7mm9mm,L=7mmK1,T-3mm,2,,(T+3)K2TK2TK3(1),T,b,KL,KL(2),(3),,2003,20034856,,6P,72()2003,42237105:815mm©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.