Efficient Technologies for Producing Cast Iron Billets and Products with Specified Properties and Microstructure

The article discusses the use of resonant-pulsating refining technology in order to improve the quality of cast iron products. This technology is used in the cast iron production and cast iron mold induction. It is relatively simple and easily fits into existing production. The effectiveness of this technology is at the world's best indicator level. The chemical composition and smelting modes of cast iron influences significantly on the microstructure of gray cast iron. The determining factors are the content of silicon in cast iron, carbon, manganese, titanium and vanadium. The carbon content affects significantly taking into account its content above 3.8%, since this content increases the content of large, ripe forms of graphite in cast iron. Titanium and vanadium also influence significantly on the microstructure of cast iron. These two elements, even in small amounts, affect the size and shape of graphite greatly. It also affects the amount of ferrite, perlite and cementite in the structure of cast iron. Vanadium also affects greatly the service life of cast iron products.