Inoculant Is An Indispensable Material For Metallurgy

Fused Alumina is the tooth of industry and is widely used in various industries. TAOANG is committed to sharing information on the upstream and downstream industries of fused alumina. There is more water vapor in the sky, and no dust can form raindrops. Similarly, although there are graphite and impurities as the crystal core in the molten iron, in order to improve the crystal type and graphite morphology, the new inoculant has become a high-strength gray cast iron, ductile iron, vermicular cast iron, etc., which changes the metallographic structure, mechanical properties and Additive materials that are indispensable for physical properties.The main element of the silicon inoculant is Si, followed by Ca, Ba, Sr, AJ, Ti, zr, Mn, Cr, B,C, Bi, Sb, Ce, La, the content of elements other than Si is only a few percent, and the amount of inoculant added is 0.5%, so the amount of alloy entering the molten iron is greater than the amount of alloying into molten iron. It is less than one or two orders of magnitude, so it is difficult to analyze the effects of inoculation with the increase of alloy composition. Some elements are not detected after solidification of the cast iron, which is enough to show that these elements do not play a role in intergranular occupation.The data show that the molten iron contains trace amounts of O, N and H, of which dissolved oxygen and dissolved nitrogen are closely related to the gestation. Oxygen in molten iron reacts with silicon to form silica crystals, which act as a foreign crystal nucleus of graphite crystals to promote graphitization. In the inoculant, ca, Mg, Mn, Al, Ce, and La form sulfides, si, Mg, ca, Al, Ba form oxides, and si, Al, ca, sr, Ba form carbides, and si, Al, Ti Zr, ce form nitrides, reduce excessive dissolved nitrogen content, prevent white mouth tendency; ce, La and Bi, Pb, sb, Te, As, sn form intermetallic compounds, inhibit the negative effects of trace interference elements.In short, sulfides, oxides, nitrides, carbides, rare earth compounds, etc. in molten iron are all substances in the graphite core. The inoculant adds the above-mentioned metal, and its function is to improve the mechanics, physics, processing and other properties. New inoculants and inoculation methods are important means for modern casting to improve the performance of cast iron. Unfortunately, until now, there are still many foundry companies in the gray cast iron, ductile iron gestation, but also stayed in the 0.6-0.8% increase in the number of 75 # ferrosilicon as the inoculant. TAOANG also expects all viewers to share your insights and look forward to your information.