The particle size of ferrosilicon inoculant agent for casting is 0mm-1mm, 1mm-3mm, 3mm-8mm, usually the manufacturer will crush ferrosilicon according to the user’s demand, and filter through the sieve, so as to make uniform particle size of ferrosilicon inoculant agent. The silicon content of ferrosilicon inoculant suitable for casting mainly has Si≥75%, Si≥72%, Si≥65%, Si≥45%, and other grades, different silicon element content of ferrosilicon inoculant no matter in price or in the use, the effect is different. ferrosilicon inoculant Introduction
Application of ferrosilicon inoculant in casting
Ferrosilicon inoculants are used in casting to enhance graphitization, which is three times more capable than nickel and five times more capable than copper. Whether in liquid or solid cast iron, silicon works better with iron than carbon. When casting with higher silicon content in the molten iron, it makes its internal carbon dissolution ability lower, so the higher the silicon content in the molten iron, then the lower the carbon content. When producing graphite castings, the addition of ferrosilicon inoculant will enhance the silicon element in the iron, which will lead to more carbon precipitation during the solidification process, thus producing more graphite forms, thus effectively enhancing the speed and number of graphite nuclei formation and improving the graphite distribution form.
In the production process of gray cast iron and graphite cast iron, ferrosilicon inoculant is a very economical metallurgical material, which can effectively reduce production costs in casting, and can better inhibit the content of oxygen, nitrogen, and other harmful elements in castings, and significantly improve the quality of castings.