奥氏体不锈钢带极电渣堆焊用烧结焊剂的研制

ElectricWeldingMachineCaF2－MgO－SiO2－Al2O3BIIW3．5～3．8。5s。FA。。TG423A1001－2303(2011)02－0091－0341220112Vol．41No．2Feb．2011ElectricWeldingMachine(213022)AtypeofsinteredfluxforelectroslagcladdingweldingwithausteniticstainlesssteelstripXIEXiangBAOYe-fengYANGKeJIANGYong-fengLILi(CollegeofMechanicalandElectricalEngineering，HohaiUniversity，Changzhou213022，China)Abstract：OnthebasisofslagsystemCaF2－MgO－SiO2－Al2O3ofwhichthebasicityis3．5～3．8atypeofsinteredfluxforelectroslagcladdingweldingwithausteniticstainlesssteelstriphasbeendeveloped．Theweldingproceduretestshowedthatelectroslagweldingprocesswasestablishedin5swithgoodstabilityandlittlespatter．Bothslagdetachabilityandweldappearanceofoverlaywereexcellent．Themicrostructureandchemicalcompositionoftheoverlayweretested．AsaresultthemicrostructureofweldoverlayisausteniteandlittleferriteandsolidificationmodeisFAmodewithgoodsolidificationcrackresistance．Theoverlayhasalowdilutionandburningloss．Keywords：austeniticstainlesssteel；electroslagstripcladding；sinteredflux：2010－07－02：(1985—)。01971Seidel·GHess·H。。[1]。[2]。、。、、、。。11．191··ElectricWeldingMachine1w()50～70w()10～25w()10～35w()15～35／％、、。。CaF2－MgO－SiO2－Al2O3。1．2CaF2。CaF2、。w(CaF2)50％CaF2[2－3]。CaF250％～70％。Al2O3。SiO2SiO2[3]。。Al2O3SiO215％～35％10％～35％。MgO。MgO10％～25％。、、、1∶13．0CaF2－MgO－SiO2－Al2O3。。CaF2－MgO－SiO2－Al2O31。BIIW()BIIW＝CaO＋MgO＋K2O＋Na2O＋CaF2＋BaO＋0．5(MnO＋FeO)SiO2＋0．5(TiO2＋ZrO2＋Al2O3)BIIW＝3．5～3．8。224mm×0．5mm10mmQ23525～28V350～400A4～10m／h20～25mm。2．1。(CaF2)[4]。(5s)。2．2。。[3]。Cr2O3。1。SiO2。12．3、、。4192··ElectricWeldingMachine2w(C)0．040／％w(Mn)1．580w(Si)0．620w(S)0．025w(P)0．028w(Cr)17．200w(Ni)8．600。。1。33．12＋。。δFA。FA。[5]。。ab23．2HXD－1000TC3。3229．0HV－0．043～0．067。3(HV)3．32．5mm2．5～3．0mm2。2w(Cr)＝17．2％w(Ni)＝8．6％。4(1)CaF2－MgO－SiO2－Al2O3。。(2)FA。。[1]SusanPakSolveigRigdal．Electroslagandsubmergedarcstainlesssteelstripcladding[J]．Anti-CorrosionMethodsandMaterials1998．45(1)41－47．[2]DiplingR．Paschold．ElectroslagStripCladdingforCorrosionResistance[J]．Svetsaren2001(6)62－63．[3]．[M]．1989．[4]StigForsburg．Resistanceelectroslag(RES)surfacing[J]．WeldingJournal198564(8)41－48．[5]JohnCLDamianJ．[M]．2008．293··