FLUX FOR CENTRIFUGAL CASTING Russian patent published in 1998 - IPC

FIELD: foundry, production of bimetal pig iron billets. SUBSTANCE: invention is related specifically to manufacture of rolls by centrifugal method with use of flux. Flux includes nonmetal and metal components. Metal component has, per cent by mass: silicon oxide 20.0-25.0; calcium oxide 25.0- 35.0; calcium fluoride 20.0-25.0; sodium fluoride 2.0-3.0; borax 10.0-15.0; aluminum oxide up to 1.5; magnesium oxide up to 1.5; potassium chloride ( sodium chloride ) 5.0-10.0. Nonmetal component includes aluminum powder up to 0.5 and ferroalloy powder 1.0-3.0 per cent by mass. Injection of aluminum powder into nonmetal component results in increased refining properties of flux and ferroalloy powder provides for modification of pig iron. EFFECT: increased refining properties of flux and modification of pig iron.