DG7-CO2gasshieldedfluxcoredwirewelding Specifications:1.6mm,15Kg/plate Hardness:52 55HRC(welded),58 60HRC(afterimpact) Maincomponent(wt.%):C0.1 0.3;Cr6 10;Ni1 3,Mo<1;Mn:1 3;Si<1 Weldingshieldconstructiontooledge.Beijinggeologicalconditionsforthisproduct(containingabout50%gravel)surfacingtooledgeR&Dshieldfluxcoredwire(BeijingScienceandTechnologyCommissionProject),depositedmetalhasagoodstrong,toughcombination,butalsohasgoodresistancetowearresistance,impactloadcanbeappliedtoacaseofhighstressabrasivewear.Currently,theapplicationoftheshielddomesticproductpreparedbythetool,inthetestsectionofBeijingSubwayLineConstructionofdouble-trackShield(geologicalconditionsthesame)aboring420m,fortheimporttool2to3times.Atthesametime,theproductcanalsobeusedforcoal,oreloaderhopperandedgeweldingrepair.