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220023HUNANMETALLURGYNo.2Mar================================================================.2002:2001-12-10(,410014):,、,。:;;:TG142.41:A:1005-6084(2002)02-0022-03STUDYONCHIEFFACTORSEFFECTINGTHEQUALITYOFCOLDFORGINGSTEELANDITSQUALITYCONTROLWURuixiang(HunanInstituteofMetallurgyandMaterials,Changsha410014,Hunan)ABSTRACT:Someapplicationofthecoldforgingsteelwasintroducedinthispapers.Therewaspointedoutthatchemicalcomposition,grainsizeandsurfacebreaksisthechieffactorseffectingthequalityofcoldforgingsteel.Thecontrolmeasuresforimprov-ingthesteelwasdiscussedtoo.KEYWORDS:coldforgingsteel;effectingfactor;controlmeasures1,。、、、、[1,2]。,(60%～70%),,。、,,,,,。、、。,,,[3,4]。,。,,。,,、、、。2,2:23:、、。2.1、、、,。,。、,,AlN,,,。,。,、、、,,,。,,,(),。2.22.2.1,,,,,。,,。2.2.2,。。,。,Y。、,;,,。,,。2.3,,,。,。,,,。,,,,。,,,。,,。,,,。,,,。。,,。,。2.41。1,、,,,。,,SWRCH35K,,,,,。1242(930～950℃),(820～840℃)(13～15m/min),,。2SWRCH35K。2C,。,,,,,,,,,。21,2-680700℃;3-10mm;F、P、B、M-、、、3,,。,,,。(1),。,,。、、、,、。(2)、,、,。(3),。,,。、、。,,,,。:[1].[M].:,1995.[2].[M].:,1984.[3],.[J].,1999,(3):40-42.[4],.[J].===============================================,2000,(3):2-4.,,(U3O8100×10-6)。,:20µm,,5µm20%。,5µm60%。:,。