What are the uses of barium silicate inoculants?
Silicon barium inoculant lumpiness to ensure uniform particle size, moderate size, so as not to affect the inoculation effect, inoculated hot iron to be fully stirred and then slag scraping treatment.
The addition amount of barium silicate inoculant is generally controlled at 0.3-0.6%. Do not blindly increase the inoculation amount. Too high inoculation amount will increase the viscosity of liquid iron and the tendency of slag inclusion, keyhole and shrinkage and porosity.
Silicon barium inoculant can promote graphitization, reduce the tendency of white mouth, improve the morphology and distribution of graphite, increase the number of eutectic groups, refine the matrix structure. It has a good effect in a short time (about 5-8 minutes) after inoculation. It is mainly applicable to the general occurrence or the late instantaneous inoculation of various situations.
Silicon barium inoculant is mainly used in the inoculation of ductile iron and gray cast iron. Silicon barium inoculant strongly increases graphitization core, refines graphite, promotes the obtaining of A-type graphite in gray cast iron, improves the strength, for ductile iron can make the graphite in ductile iron fine, round, and improve the grade of spheroidization. Strong recession-resistant capability, while preventing the associated spherification recession. Small sensitivity to wall thickness and uniform tissue. Significantly reduce the white tendency, reduce the relative hardness, improve the machining performance of casting. Used as inoculant and spheroidizer in the cast iron industry.
