机翼主梁螺栓孔磁粉探伤-橡胶铸型法探伤中磁化方法的研究

2(,712201)::;;;:TG115.28+4:A:100026656(2001)0120026203RESEARCHONMAGNETIZINGMETHODFORMT-RCINSPECTIONOFTHEBOLTHOLESINTHEMAINBEAMSOFJETWINGSGUOHai-ou(StateSidaMachineBuildingCorporation,Shanxi712201,China)Abstract:Theeffectsofmagnetizingmethodsontheeffectivemagneticfieldstrengthshowingthedefectsintheholeswithshortdistancesinmagneticparticleinspectionwerestudiedbycalculation.Keywords:Magneticparticleinspection;Magneticfieldstrength;Jet;Bolthole,(30mm),110327,2(MT2RC),1()1CY220001mm(:20002022282),,,I45D(D,)1.13(123),36223120011NDTVol.23No.1Jan.2001©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,[1]H=I2PRH,AömR(3),,mR=3mm,H=I2PR=45D2PR=453223.140.003=14331.2H1=H2=H3=H=14331.2(H,,)H=14331.233=14331.21.24(,),31,H34A,AH33B,B2(3)4l=0.027m,,H33=I2PR=4562PR33=27023.14(2l+R)=27023.14(20.027+0.003)754.34H34=I2PR=4562PR34=27023.14(2l+30.003)682.41H=H1+H34-H33=14331.2+682.4-754.3=14259.33H=H3=14331.2213,23(4),2H=H2=14331.2H=14259.3+14331.2+14331.23=14307.24,171.9Aöm(14331.2-14259.3),23,24Aöm(14331.2-14307.2)1.35,123(1)23H22H341A,H21H33BH322C,H31D23,23572:2©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.H21=I2PR=4562PR21=2702Pl=27023.140.0271592.4H22=I2PR=4562PR22=2702P(l+2R)=27023.14(0.027+0.006)1303H31=I2PR=4562PR31=2702P(l-R+R)1592.4H32=I2PR=4562PR32=2702P(l+2R)13031H=H1+H22+H34-H21-H33=14331.2+1303+682.4-1592.4-754.3=13969.92H=H2+H32-H31=14331.2+1303-1592.414041.83H=H3=14331.2H=13969.9+14041.8+14331.23=14114.3,,12361.3Aöm(14331.2-13969.9)289.4Aöm(14331.2-14041.8),3216.9Aöm(14331.2-14114.3)1.466,,:1H=H1+H34-H22+H21-H33=14331.2+682.4-1303+1592.4-754.3=14548.72H11=H31H12=H32H=H2+H11+H31-H32-H12=14331.2+1592.4+1592.4-1303-1303=149103H14=H34H13=H33H=H3+H14+H21-H22-H13=14331.2+682.4+1592.4-1303-754.3=14548.7H=14548.7+14910+14548.73=14669.1,,13217.5Aöm(14548.7-14331.2),578.8Aöm(14910-14331.2)217.5Aöm(14548.7-14331.2)337.9Aöm(14669.1-14331.2)2(1)(50mm),;;(7),MT2RC71.2.(36)82:2©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(,453002)DISCRIMINATIONOFFALSEFLAWLITong-chao(LiminMachineryIndustrialCo.,Henan453002,China):TG115.28+1:B:100026656(2001)01200362011X,,,1,,,,12,X,,X,,,,X,:2000208221,,,3,,,,,,,,,,,,(28)(2)MT2RC(1mm0.5mm0.12mm),,,(MT2RC)(3)MT2RC,MT2RC,1mm[2],:[1].[M].:,1987.[2]HB5370-1987,2[S].6323120011NDTVol.23No.1Jan.2001©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.