超声波水浸探伤中探头距工件的最佳距离及调整

:2006-04-20:(1960-),,,Adjustinganddeterminingaboutoptimaldistancefromprobetoworkpieceintowaterultrasonicexamination,,,ZHANGLi,YANGJian2wei,CHENGHui,ZHANGLei(,150060):,,:;;;:TG115.281;TG146.21:B:1007-7235(2006)10-0047-02,,100%,,,,1,,,1,,1,,,,212;22;32;42;52;622,:F=RP(1-C2PC1)(1):F,m;R,m;C1,mPs;C2,mPs3,:742006,Vol.34,10LAFTF1=F-h(C3PC2):F1,m;h,m;C3,mPs32,,H,:H=F1-h-[R-(R2-D2P4)1P2](3):R,m;D,mm,,,,,44:,p;p=tiQbP360(4):t,mm;i;Qb,()HN,,N={F1-h-[R-(R2-D2P4)]}Pp(5):,,,FC3hDR,N,,,,,,,33.1,,,,,Hp,,,663.2,,q,APDf(MHz),TAD(s),(57)84LAFT2006,Vol.34,10(48)q:tk=TADq10-6(s)(6):ts2=tB1+th(s)(7):tB1,s;th,s,th=2tk,ts2=4HpPC2(8):Hp,m(7)(8):4HpPC2=tB1+2tk(9):tB1=2(HpPC2+h1PC3)(10):h1,m;C3,m,Hp=(h1PC3+TADq10-6)C2(11)p,HpNp:Np=HpPp(12),,,4,J11,,,,201025kt0.009mm,0.00635mm,()0.5g1500mm,,,2006,2007,2008200510kt,201028kt20022005725ktPa,(Scottsboro)(McCook)(SanAntonio),,,,2005(Hannibal),(Aleris)(Carson),2005(FRPs)5500ktPaUS6908590B2,SPX(SPXCorporation),(,%):6.58.5Si,0.61.0Fe,0.00.5Mn,0.350.6Mg,0.01.0Zn,0.00.2Ti,2.02.5Cu,0.15752006,Vol.34,10LAFT