椭圆型封头拼接焊缝的射线探伤

(,215007)RADIOGRAPHICINSPECTIONOFTHEWELDSINELLIPSOIDALSEALINGHEADSWangJianguoMaoPeiyuan(JiangsuChemical&PesticideGroupCo.,Suzhou)1()GB150-89100%2Pw,,,,(1)13ab,(2)2BC=a2+b2-(a-b)2+(a-b)=a2+b2+(a-b)2(1)B=H=arctgab(2)A=P2-arctgab(3)R=BD=BCcosH=a2+b2+(a-b)2cosarctgab(4)r=a-(R-b)tgA(5)S1=2AõR(6)S2=Bõr(7)JB4730-94,ABK1.1,(3),S1RN131422920009NDTVol.22No.9Sep.2000©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.3N1=180H1-G1(8)H1S1G1S1S1L31L31=2PRN1(9)H1=cos-11+(K2-1)T2RK(10)TG1=sin-12R2R+2L1õsinH1(11)S1N1N1=S1L31(12)S2rN2N2=180H2-G2(13)H2S2G2S2S2L32L32=2PrN2(14)H2=cos-11+(K2-1)T2rK(15)G2=sin-12r2r+2L1õsinH2(16)S2N2N2=S2L32(17)NN=N1+2N2(18)41Cr18Ni9Ti,12mm,h=40mm,d=1800mm,44,1CC(0,656,334),AA(718,561,0),a=xA=718mm,b=(xC-xA)2+(yC-yA)2+(zC-zA)2=347mm(1)(7),BC=584mm,R=1342mm,r=237mm,A=25.8,B=64.2(8)(18),L1=600mm,H1=24.5,G1=16.6,N1=23,L31=330mm,N1=4,H2=23.95,G2=6.6,N2=11,L3=135mm,N2=2,N=8180kV,15mA,612mm,1.5min,,,Leff140,140,330,330,330,336,140146mm:1999212213,,(),,414:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.