Nodulizers are some metals or alloys added to molten iron to obtain spherical graphite cast iron. The nodulizers commonly used in my country are ferrosilicon rare earth magnesium alloys, and most foreign countries use magnesium-based nodulizers (pure magnesium and magnesium alloys). , a few countries use calcium nodulizers.
Spheroidal graphite in ductile cast iron is formed by spheroidizing molten cast iron, making it much stronger than gray cast iron and tougher than malleable cast iron, while maintaining a series of advantages of gray cast iron. However, the “spheroidizer” used in the casting of ductile iron can increase the tendency of the weld to produce “white mouth” and hardened structure, and induce cracks in the weld and heat-affected zone (especially the fusion zone). Therefore, the weldability of ductile iron is worse than that of gray cast iron.
Nodulizer ingredients: magnesium, rare earth, silicon, calcium, barium, iron, etc.;
Nodulizer model: 3-8 nodulizer, 5-8 nodulizer, 7-8 nodulizer;
Nodulizer particle size: 5-30mm (can also be processed according to customer requirements), gray-black solid thickness not exceeding 100mm!
Post time: Jul-12-2023
