Ferro silicon magnesium is an alloy nodulizer, Nodulisation is a process of controlling the structure and properties by changing the graphite shape from flakes to spheroidal in cast iron during solidification. A nodulizer is a material that contains spheroidal graphite-forming elements such as Mg, Ce, Ca, Ba, etc. The content percentage of each component of ferro silicon magnesium is magnesium 5-15%; silicon 37-52%; the balance is iron.
What are the advantages of ferro silicon magnesium？
ferro silicon magnesium nodulizers is used to play the strengths of various spheroidizing elements, improve the nodular effect, and adjust the content of nodular elements to meet the needs of castings with different production conditions and structures. And the reaction is stable, easy to operate, so that the spheroidization process is stable. At the same time, due to the increase of crystal cores, the grain size of the casting is relatively small, which not only plays a strengthening role, but also reduces the whitening tendency.
Zhenxin’s ferro silicon magnesium
Generally, the lower the magnesium content in the nodulizer, the more stable the nodulization reaction and the higher the recovery rate of magnesium. But the low-magnesium nodulizer increases the amount of silicon in molten iron. The nodulizer is suitable for treating molten iron with low content of sulfur and anti-spheroidizing elements, and pouring castings with medium section thickness.
When using the above-mentioned nodulizers, first of all, care should be taken not to allow direct contact between magnesium and scrap steel. After the magnesium with a low melting point is melted, it first reacts with silicon to form a Mg-Si phase, so as to reduce the burning loss of magnesium. Secondly, it is also necessary to manually stir in time to make the nodulizer alloy components homogeneous during the smelting process. Zhenxin’s ferro silicon magnesiu can give full play to the strengths of various nodular elements, improve the nodular effect, and meet the requirements of castings with different production conditions and structures by adjusting the content of nodular elements. And the reaction is stable, easy to operate, and the spheroidization process is stable. At the same time, due to the increase of crystal cores, the grain size of the casting is relatively small, which not only plays a strengthening role, but also reduces the tendency of whitening, improves the mechanical properties of the product, and increases the toughness and pull-out strength of the product.