What types of cast silicon carbide are there?
The most widely used cast silicon carbide is 70# silicon carbide, 88# silicon carbide, and 90# silicon carbide. When casting, different grades of cast silicon carbide are put in according to the control of product performance, which can produce different chemical responses and effects. For casting products of different qualities, when the temperature is lower than 1620°C, the carbon in the cast silicon carbide will act as a deoxidizer, allowing less fixed oxides such as iron oxide and manganese oxide to be reduced through a chemical response. When the temperature is higher than 1620°C (such as during smelting), the silicon in silicon carbide will take on all deoxidation tasks, while the carbon will act as a carburizing agent, and its yield can reach 100%.
Cast silicon carbide plays a vital role in the casting technology. Casting veterans are also familiar with the fact that using 70# silicon carbide, 88# silicon carbide, and 90# silicon carbide in the casting process can often greatly reduce the phenomenon of casting white spots, and It greatly improves the flow performance of molten iron and reduces the casting time. Cast silicon carbide also has pre-inoculation characteristics. Selecting 70# silicon carbide, 88# silicon carbide, and 90# silicon carbide in the production method of ductile iron can often promote graphite At the beginning of chemical transformation, changing the distribution pattern of graphite can effectively update and iterate the product quality of cast iron.
Cast silicon carbide plays an indispensable role in the casting production method. Common cast silicon carbide is 70# silicon carbide, 88# silicon carbide, and 90# silicon carbide. The cast silicon carbide grades selected when making different casting products They are not all the same. By applying the appropriate and correct cast silicon carbide products, you can better produce the highest quality cast products!
