The composition content of silicon-barium inoculants usually includes silicon (Si), barium (Ba), calcium (Ca), and aluminum (Al). Specifically, the content of silicon is 68%-72%, the content of barium is 2%-5%, the content of calcium is about 1.5%, and the content of aluminum is between 1-2%. The proportion of these components has an important effect on the performance and use of silica-barium inoculants. Silica-barium inoculant is mainly used in the casting process of nodular cast iron and gray cast iron to promote the formation of graphite balls and refine grains, thereby improving the performance of cast iron.
0.2-1mm: for on-flow inoculation (inoculation amount control is more accurate)
1-3mm, 3-8mm for in-bag inoculation (inoculation time must be controlled at more than 70% of the iron time)
Silicon barium inoculant packaging: 25kg bag packaging, plus tons of bags, can also be packaged according to customer requirements;
In the process of steelmaking, calcium is an essential element, but the calcium treatment process often produces bubbles, at the same time, there will be some inclusions in the hot metal, affecting the quality of the molten steel. Silicon-barium inoculants have been developed to solve this problem by aggregating bubbles into larger bubbles that can be removed by floatants. In addition, the silicon-barium inoculant can also adsorb on the oxide surface, reducing its adhesion and making it easier to disperse, thus effectively reducing the production of inclusions.
The application of silicon barium inoculant in steelmaking has been widely recognized, and its application effect is mainly manifested in the following aspects:
When using silicon-barium inoculants, the following points need to be noted:
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