The main components of rare earth magnesium ferrosilicon spheroidizer include rare earth elements, magnesium (Mg), silicon (Si) and iron (Fe), and the content of each element will vary according to different production needs. The following is a detailed introduction to the main ingredients and their functions:
The main components of rare earth magnesium ferrosilicon spheres
1. Rare Earth (RE): General content 0.5% - 3%
Main components: cerium (Ce), lanthanum (La), neodymium (Nd), yttrium (Y), etc.
Promote graphite spheroidization, improve spheroidization rate, and make graphite evenly distributed.
Reduce the influence of harmful impurities (such as sulfur, oxygen, etc.) in cast iron and improve the quality of castings.
Enhance the oxidation resistance and heat resistance of cast iron and improve high temperature strength.
Improve the fluidity of cast iron and reduce casting defects.
The main components of rare earth magnesium ferrosilicon spheres
2. Magnesium (Magnesium, Mg): General content 5% - 10%
The main spheroidizing element inhibits the formation of sheet-like graphite and makes the graphite appear spherical.
Improve the strength, toughness, wear resistance and impact resistance of cast iron.
Control the growth method of graphite and optimize the spheroidization degree of graphite.
The main components of rare earth magnesium ferrosilicon spheres
3. Silicon (Si): General content 40% - 50%
Promote the spheroidization process and improve the stability of the spheroidizing agent.
Improve the deoxygenation effect of molten iron and improve the toughness of cast iron.
Enhance the corrosion resistance and oxidation resistance of cast iron.
The main components of rare earth magnesium ferrosilicon spheres
4. Iron (Iron, Fe): general content balance (as matrix)
As the main carrier of spheroidizing agent, rare earths, magnesium and silicon are more easily dissolved in molten iron.
Ensure that the spheroidizing agent maintains a stable alloy ratio during the casting process.
The main components of rare earth magnesium ferrosilicon spheres
5. Other trace elements
Calcium (Ca): It can stabilize the volatility of magnesium, improve the effect of spheroidizer, and reduce shrinkage and slag inclusion in castings.
Aluminum (Al): It can remove oxides from molten iron and improve the degree of molten iron purification.
Barium (Ba): Helps improve spheroidization stability and improves anti-recession ability.
The main components of rare earth magnesium ferrosilicon spheroidizer include rare earth elements (Ce, La, etc.), magnesium (Mg), silicon (Si) and iron (Fe). They work together to make the graphite in cast iron appear spherical, thereby improving the mechanical properties, wear resistance and impact resistance of the castings. In the production process of ductile iron, spheroidizing agents with different ratios can be used in different production processes and requirements to optimize the quality and performance of the castings.
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