Black silicon carbide micropowder is usually used in the foundry industry, because the metallurgical quality of molten iron cannot be well guaranteed in the casting process, which aggravates the difficulty of processing, and the cost cannot meet the needs of customers. Adding silicon carbide can reduce the amount of molten iron Oxidation improves the metallurgical quality of molten iron, so it is widely used in the foundry industry to ensure the quality of the product.
Product features:
1. Increase graphite nucleation core and enhance graphite nucleation ability. Reduce the degree of subcooling of molten iron and reduce the tendency of casting white.
2. Black silicon carbide powder has a good deoxidation effect and can purify molten iron.
3. Extend the service life of furnace lining.
4. Reduce supercooled graphite in gray cast iron and promote the formation of A-type graphite.
5. Adding in the production of nodular iron can increase the number of graphite balls, improve the nodularization rate, make the graphite balls more round and finer, and reduce the amount of nodularizing agent added.
6. Black silicon carbide powder is used instead of ferrosilicon smelting, which can reduce aluminum content and reduce subcutaneous pores.
Black silicon carbide powder is now gradually used more and more widely in the steelmaking and foundry industry. It can not only increase the carbon content, but also increase the quality of the product, enhance the reducibility of iron, and reduce the appearance of impurity castings.
The role of black silicon carbide micropowder in use: it can better improve the mechanical properties of a grade, thereby reducing the shortage of cast iron, reducing the waste rate outside processing, reducing the tendency of shrinkage cavity, and can completely replace ferrosilicon, so as to have a better economy. benefit. Especially the black silicon carbide used in the cupola reduces the sulfur content, thereby ensuring the water quality, reducing the shutdown time and the consumption of auxiliary materials, and has better utilization value.
Although the amount of black silicon carbide micropowder used in the foundry industry is not large, it is not enough without it. It can improve the quality of the product and ensure that the product can meet the needs of customers. When the product is good, customers will naturally trust the manufacturer more. At this time It can bring better benefits to the manufacturers, but in the process of use, everyone should pay attention to its usage, do not use a large amount, and prevent excessive oxidation.
