What is the role of pig iron in precision casting?

Pig iron is the raw material for iron castings and plays an important role in casting. It is an iron alloy material obtained by refining and reducing iron ore at high temperatures. Its composition mainly includes iron and carbon. The carbon content is usually Between 2% and 4%. In casting, pig iron can improve the fluidity, lubricity and adhesion of castings, while also improving the mechanical properties and mechanical properties of castings, so that castings have sufficient strength and hardness. In addition, Pig iron can also increase the toughness, corrosion resistance and fatigue resistance of castings, thereby improving the quality and service life of castings.