鞍钢冷轧厂五机架连轧机支承辊的使用与维护

(),,;,UseofBackupRollinAngang’s5-standColdTandemMillandItsMaintenanceWangJinxingYangShengtianXiaYingli(TheColdRolledStripPlantofAngangNewSteelCo.,Ltd)AbstractThehardnessvariationofthehardeninglayerontherollbodysurfaceafteruseofbackuprollin5-standcoldtandemmillinAngangColdRolledStripPlantisinvestigated,thehardeninglayerdepthonthebackuprollsurfaceafteritsuseisthusdetermined,andthenthegrindingsystemforthebackuprollismodified.Moreover,thebackuprollchangesystemisformulatedaccordingtoitsactualservicelife.KeyWordscoldtandemmillbackuprollgrindingdepthhardness1,,;,,,,,,,,,,,,2,70Cr3Mo,6672HSD,11,%CSiMnPSCrMoNi0.60.80.30.60.51.00.020.022.53.00.20.40.20.40.650.480.550.0120.0072.770.320.2132,10,(15),,,3.104ANGANGTECHNOLOGY20022©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[1]:R6N=C()(1)R:R=2.76HB-70(MPa)(2)NNs,:N=2ni=11NiniNs(3)niöNsiRi;NiRi,Ri1Ns:Ns=2ni=11QPTiUBiHi(4)TiBiHiiRi;Q;P;U,2ni=1niöNi=1,,,D=2ni=1niöNi=1,3,NNs3.2115,NNsn=NöNs1153:n=2ni=1niNi=1öD(5),D01667,,Ì344.1,,,,13Ì,mm,tD16031231525.601523.60152245822.63245312.07254551.5486695582093510858970.38450.36410.4861960212315201518.551517.7016371.45454694.50446926.56833672610535638883200.1490.46760.394396031231483.701481.70147935260.30846827.3651633.306742088492759926170.29380.37010.435614.2,6(mm)=(t)(tömm)(6)30000tömm,,,7=M+öK-MK1(7)40000tömm;M,40000t,1mm;K(4);K1(5)4,mm1400144014411480148115250.80.91.014©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:1985():2001108:,,,2000,(114021)2001NKK2000,t2001,t,%27832550-8.413491280-4.912141220+0.51040970-6.7653645-1.22000,2001,,%2750426000-5.41787216600-7.11315512400-5.71497013500-9.9137301200012.62000,2001,2640969-740-182-6258-105065-2902420022©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.