7-8 rare earth magnesium silicon deoxidizer

What is a spheroidizing agent Spheroidizing agents （Rare Earth Magnesium Silicon Alloy）are certain metals or alloys added to molten iron to obtain spherical graphite cast iron. It is an additive that can promote the flow of substances on the surface of castings and form spherical particles. Its working principle includes: 1. Reduce the surface tension of liquid metal: Spheroidizing agents can reduce the surface tension of liquid metal, thereby reducing the generation of burrs, holes, and delamination, making it easier for the metal to flow and fill the mold cavity 2. Improve the flowability of liquid metal: Adding an appropriate amount of spheroidizing agent to liquid metal can improve its flowability and promote the formation of spherical particles on the surface of castings. 3. Improve the surface quality of castings: Spheroidizing agents can make it easier for bubbles in liquid metal to rise and be expelled, thereby reducing the generation of pores and other defects, making the s…