Silicon carbide for foundry

When it comes to casting, many people are still very strange, in daily life we often see most of the iron products are made from steel mills, but in fact, with the gradual shrinkage of scrap resources, casting products slowly began to popularize our lives, such as our use of valves, knives are many of the products of casting, now casting products not only in the instrument,
Medical devices have emerged, in aviation, automobiles, machine tools, ships, steam turbines and other aspects of the casting products everywhere visible!



Casting is popular mainly because of its unique advantages, compared to steelmaking, the simple service life of the casting process is more durable than steelmaking products, in the casting cost compared to the cost of steelmaking greatly reduced, effectively enhance the efficiency of manufacturers, but the casting process or the need for a certain smelting materials silicon carbide is one of the indispensable raw materials!
Not all silicon carbide is suitable for casting process, in the purchase of silicon carbide should be based on the requirements of the products produced for the procurement of special casting silicon carbide products, such as casting gray cast iron, ball iron, graphite cast iron when the use of casting silicon carbide is different.



What models are cast silicon carbide? Casting Silicon carbide is the most widely used for 70# silicon carbide, 88# silicon carbide, 90# silicon carbide, in the casting according to the product process of Ferroalloy requirements into different grades of cast silicon carbide can produce different chemical reactions and effects of casting products of various quality, when the temperature is less than 1620 ℃,
The carbon in the cast Silicon carbide will act as a deoxidizer, so that less stable oxides such as iron oxide and manganese oxide are reduced by chemical reactions, and when the temperature is higher than 1620 ℃ (e.g. smelting), silicon in silicon carbide will assume all the deoxygenation tasks, while carbon acts as a carbon additive and its yield can reach 100%. Casting silicon carbide in the casting process played a vital role, casting old drivers also know that in the casting process using 70# silicon carbide, 88# silicon carbide, 90# silicon carbide can often greatly reduce the phenomenon of casting white mouth, and a good increase in the fluidity of molten iron can effectively reduce the casting time.



Casting silicon Carbide also has pre-bred characteristics, in the production of ductile iron process using 70# silicon carbide, 88# silicon carbide, 90# silicon carbide can often promote the initial gestation of graphite, improve the distribution of graphite form effectively improve the quality of cast iron products. Casting silicon carbide plays an indispensable role in the casting process, the common casting silicon carbide for 70# silicon carbide, 88# silicon carbide, 90# silicon carbide, in the production of different casting products at the same time the use of casting silicon carbide grades are not the same, through the use of reasonable and correct casting silicon carbide products can better produce high-quality casting products !

Henan Star Metallurgy Material Co.,Ltd.
Email:star15@alloyssi.com
www.sino-stargroup.com

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