HCW轧机板形控制机能的研究

HCW,HCWFWS,F4F7,,HCW,HCWAbstractUsingdivisionmodeltoinfluencerolldeformationwhichiscalculatedwithfunctionresultsinanestablishmentofmath.model,bywhichtherelationamongHCWmillrollbendingforceFw,workingrollaxialmoveSandstripprofilehasbeensetup.TheactualpracticeintheretrofitofF4F7finishingmillinWuSteelHotRollingPlantiscorporatedtoshowthatthetheoreticalanalysisisconsistentwithpro2ductionpractice,provingthatusingHCWmillcanachievefreerolling,heightenproductqualityandrateoffinishedproducts.Inshort,itisoneofthedesiredwaysofreformingfour2highrollingmill.DescriptorsHCWmill,rollbending,axialmove1,,F4F7,HCW,2HCWHCW,1,,(D1,K,L1)13HCW,:,,34,,(430080),,1311HCW,511999No11L2n,,1,2,2n,B2m,1,22m,dx=Lö2n=Bö2m,2:2::X(1)=C+dxö2X(i)=X(i-1)+dx(1):X(1)=(L1-B)ö2+dxö2X(j)=X(j-1)+dx(2)(j=1,2,32m),,3::q(i)=q[X(i)]dx(i=1,2,2n):p(j)=p[X(j)]dx(j=1,2,2m)3312312112ni=1q(i)=2mj=1p(j)+FWL+FWr2ni=1q(i)x(j)=2mj=1p(j)X(j)+FWLX(FWL)+FWrX(FWr)31212:(E)(D)($W)($B),4(1)p(j)(j=1,2,2m)i(DPWi)(EPwi):DPwi=2mj=1Dijp(j)Dijji4EPWi=2nj=1Fijp(j)Fijji611999No11(2)q(j)(j=1,2,2m)i:DqWiEqBiDqWiEqBi:DqWi=2ni=1Dijq(i)EpWi=2ni=1Fijq(j)DqBi=2ni=1Dijq(j)EqBi=2ni=1Fijq(j)(3)DijjiFijji(3)i:$W=$WL+($WR+$WL)X(i)öL1$B=$BL+($BR+$BL)X(i)öL1(4)31213(3)(4)i:ZBB-WBiZBB-WBi=2mj=1Fijq(j)+2mj=1Dijq(j)+$BL+($BR+$BL)L1öXL(5)(3)(4)i:ZSB-WWi,ZSB-WWI:ZSB-WWi=2mj=1Dijp(j)-2mj=1Dijq(j)-2Fijq(j)+$WL+($WR+$WL)öL(6)ZSB-WWI=2nj=1Dijq(j)-2mj=1Fijq(j)-2mj=1Dijp(j)+$BL+($BR+$BL)öL1(7),,ZSB-WBiZSB-WWi:m(i)(i=1,22m);,m(i)=0(i=1,22m);,m(i)(i=1,22m)ZSB-WBi=ZSB-WWi-m(i)(8)iZSW-MWiZSW-MMi:ZSW-MMi=ZSW-MWi-m(i)(9)(6)(7)(8)(9):[A]Q=B[A]=a1,1a1,2a1,ia1,2na1,2n+1a1,2n+2an,1an,2an,ian,2nan,2n+1an,2n+2a2n+2,1a2n+2,2a2n+2,ia2n+2,2na2n+2,2n+1a2n+2,2n+2Q=[q(1),q(2),q(2n+2)]B=[b(1),b(2),b(2n+2)]:q(j)(j=1,2,3,2n)$WR,$WL(9)ZSW-MMiq(j)ZXW-MMi313h(i)=h+ZSW-MMi+ZXW-MMi(10)(i=1,2,3,2m)h(i)h,,ûh(n)(i)-h(n-1)(i)ûE5711999No11541700(),:D1=(1-010005)D,L1=(0200)+1700,K=0300mmHCW120300mm2040mm,2101250F1F2F3F4F5F6F73014191419911911513513411411314314215215210öMN25252525252525ömm7601700760170076017007601700760170076017007601700ömm---150mm---20mmös5mmös()---1ö20ös---215mm---21MPa,,1mm811999No11HCW0-1MNö0-2MNö,21MPa,26MPa,9MPa---3313(lös)20000Nö10000Nöömm15701700(AGC)5511$LL,10-5(UI),,,,,6,S,S()26(),95%30UI(+,-),90%24Lm,,,2101250512,,,HCW,,,,,,,20Lm(100)120Lm,100LmHCW,911999No1110324Lm:,300mm,513,,,,,,,,7(,2171220),,D,D,,,D,80142080,15Lm,76(1),(2)HCW,,,,,F4F7:,,(3)HCW11()1,19831211,1976131CVC1,1991(4)41CVC11,19921(:1998205210)021999No11