平整机支持辊表面振纹形成原因及控制方法研究

111223(1:100083;2:()430083;3:200092)1700,,,,,TG333.17TH113AResearchontheFormingReasonandControlofChatterMarksonBackupRollofTemperMillHouFuxiang1ZhangJie1ShiXiaolu1XieJianqiang2WangCong2HuFei3(1:SchoolofMechanicalEngineering,UniversityofScienceandTechnologyBeijing;2:WuhanIron&Steel(Group)Co.;3:SchoolofSciences,TongjiUniversityShanghai)ABSTRACTBasedonexperimentalresearchesonchattermarksofbackuprollofa1700tempermill,there2lationshipamongthevibrationfrequencyoftempermill,rollingspeedandchatterwavelengthandthePeripheralve2locitydifferencebewteenworkrollandbackuprollarefound.Thecharactersandformingreasonsofchatermarksaregrasped.Thecountermeasuresbasedonspeedcontrolareproposedandconsiderableeffectsareachieved.KEYWORDSTempermillChattermarkVibrationControl11700,,,,2510,5,,,,,,Nessler,[12];Bollinger[3];Hofmann(Thicknesswave)(Formwave)[4]73TotalNo.158August2006METALLURGICALEQUIPMENT158200684:,,1976,,,,,,,21),,,,30.3mm,1;2),,;3),,;4),;5)1233.1,18,1,,3.21a1a10a2a11a3a12a4a13a5a14a6a15a7a16a8a17a9a1883158200684,530570Hz,2,550Hz2a)b)c)d)e),550Hz,,,6,2f)3.3,,550Hz,,3.3.1,,,3.3.23,550Hz,400Hz3()4,5,,,4()54,6,4,222(Hz)f1f2f3f4f5f678.6115.3167.7324.9413.9532.72,532.7Hz6550Hz,,,,,550Hz6,,550Hz(),,,93:20068451700,,,,,,1000m/min,0.58%,0.079%,,6,v=1000m/min,550Hz,,,s:s=vf=10006055010=30.3mm,:,,,,,7,,:1000m/min,5,3.17t5.67t,78.86%,81),550Hz,,,2),,,3),[1]NesslerGL,CoryJFJr.Identificationofchattersourcesincoldrollingmills.IronandSteelEngineer,1993,Vol.70(1):4045[2]NesslerGL,CoryJFJr.Causeandsolutionoffifthoc2tavebackuprollchatteron4-hcoldmillsandtempermills.IronandSteelEngineer,1989,Vol.66(12):3337[3]BollingerLA,RapsinskiTS.Windingreelinvolvementintempermillchatter.IronandSteelEngineer,1994,Vol.71(11):2729[4]HofmannW,AignerH.Reductionofchattermarksduringthetemperrollingofsteelstrips.StahlundEisen,1998,Vol.118(3):6972(:2006-03-18):20063P55CMJ/kgK,LFKVA,kWMW,PnLFkVA,LF04158200684