The role of silicon-barium inoculant

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, and it has a good effect in a short time (about 5-8 minutes) after inoculation treatment. It is mainly applicable to the general nature of various situations or the later instantaneous inoculation.

Silicon-barium inoculant is mainly used in the inoculation of ductile iron and gray cast iron. The silicon-barium inoculant strongly increases the graphitization core, refines graphite, promotes the formation of A-type graphite in gray cast iron, and improves the strength. For nodular cast iron, it can make the graphite in nodular iron fine, round and improve the grade of spheroidization. Strong recession-resistance, while preventing the associated spheroidizing recession. The wall thickness sensitivity is small and the tissue is uniform. It can significantly reduce the tendency of white mouth, reduce the relative hardness and improve the machinability of castings. Used as inoculant and spheroidizing agent in the cast iron industry.

1, strongly increase the graphitization core, refine graphite, promote gray cast iron to get A graphite, improve strength, for nodular cast iron can make the graphite in nodular iron fine, round, improve the spheroidization grade.


2. It can effectively reduce the undercooling degree of hot metal, promote the precipitation of graphite, significantly reduce the tendency of white mouth, reduce the relative hardness, and improve the cutting performance of castings.


3, strong anti-recession ability, anti-recession time is twice as long as 75 silicon, the addition of silicon barium inoculant is less than half of 75 ferrosilicon inoculant while preventing the associated spherospheric recession.


4, the wall thickness sensitivity is small, improve the uniformity of the section, reduce the tendency of shrinkage.


5. Stable chemical composition, uniform processing particle size, small deviation of composition and quality.


6, low melting point (less than 1300°), gestate treatment is easy to absorb melting, scum is very little;