去氢退火工艺的设计及应用

1,1,1,2,2(11,014010;21,014030):,,,,,:;;:TG156125:A:025426051(2003)0320051203DesignandApplicationofDehydrogenationAnnealingProcessLIUZong2chang1,YANGHui1,LIWen2xue1,HUYong2ping2,CUIYu2jun2(11DepartmentofMaterial,BaotouUniversityofIronandSteelTechnology,Baotou014010,China;21NorthHeavyIndustryGrop.,Baotou014030,China)Abstract:Byanalyzingthestateofhydrogeninsteel,andexpoundedtherelationbetweenthesolubilityandthediffusioncoefficientofhydrogen,optimunparametersofdehydrogenationannealingprocesswereobtained,whichcouldbebroughtaboutremarkableeconomicbenefits.Keywords:hydrogen;flakes;dehydrogenationannealing:(194019),,,,,,120:2002212228,,(VHD),,,:;,,,,,1Fe2H1[1]Fe2H,,2Fe2Fe,905,,,2Fe+H2905,2Fe2Fe+H2,12,905,010003%,,,,,,,,,,,2[1],90021810-4%,1Fe2H()Fig.1ApartofFe2Hstatediagramunderoneatmosphericpressure2H[1]Fig.2Thesolubilityofhydrogeninferrite15200328301510-4%,0125610-4%/100,Ni,,2,,117810-4%[2],,2Fe2Fe,2Fe[3],,+,,,A1,,,2Fe2Fe,,,,,2FeD2FeD[3],,2Fe,:1300,D/D1;700,D/D8;600,D/D14;400,D/D71;300,D/D180,,2Fe,32Fe32FeFig.3Therelationshipofthediffusioncoefficientofhydrogenin2Feandtemperature3311150,0187810-4%(46)10-4%,VHD21510-4%,J=-Ddcdx,,D,dcdxDdcdx,,:Ms(300),,112610-4%,,,112610-4%,,,,,A1(700),D700212910-4%,,,,,,[H],600,[H]210310-4%,,,,,,:210-4%,,1540/h,150200,11810-4%,,,,,,,,,312,,[3],142CrMo252003283142CrMoTable1Theparameterofdehydrogenationannealingprocessfor42CrMosteel/mm/h()21510-631510-641510-6610-6710-6/h-1/300812152220404060457050400300500122022406060110701404020300500800203222806018011029514036030152004,5CrNiMo5CrMnMo[4,5],,:5CrNiMo5CrMnMo550mm135h,21810-4%,680,[3],200,30%,35%45Cr2NiMoVSi600mm226h,910720650,4002040/h,4002001520/h,40%5(1),,,,(2),(A1150)(3)[H],,(4),1040/h,,,:[1],,..()[M].:,1984:1972199.[2].[M].:,1981:2952299.[3],,.[M].:,1999:64274[4],.5CrNiMo5CrMnMo[J].,1992,11(2):46250.[5],.[R].,2001.5:992101.,(,200331):9CrSi,,:;;;:TG156133:B:025426051(2003)0320053204ImprovementonDistortionofRoll2teethMouldbySupersonicFrequencyInductionHardeningCHENMing,CAIZhi2qiang(ShanghaiLiangfangTextileMachinerySpecialPartsCo.,Ltd,Shanghai200331,China)Abstract:Thedistortionof9CrSisteelroll2teethmouldinheattreatmentwasanalyzedinthispaper.Bysupersonicfrequencyinductionhardening,thedistortionofthemouldwilldecreaseandtheservicelifecouldbeprolonged.Thedistortionreasonisdiscussedandthemethodofdistortioncontrolofthemouldisalsogiven.Keywords:supersonicfrequencyinductionhardening;roll2teethmould;distortion;servicelife:(195511),,,,,,,:021266955450:2002209216352003283