How to use silicon carbide crucible for metal purification?
The reason why silicon carbide crucible has strong practical application value is because of its common properties. Silicon carbide has stable chemical properties, high thermal conductivity, low thermal expansion coefficient and good wear resistance. In addition to being used as abrasive, it also has many other uses. For example, coating silicon carbide powder on the inner wall of turbine impeller or cylinder block with special process can improve its wear resistance and extend its service life by 1 ~ 2 times; The high-grade fire-resistant material made of it has the advantages of heat shock resistance, small volume, light weight, high strength and good energy-saving effect. Low grade silicon carbide (containing about 85% SiC) is an excellent deoxidizer. It can accelerate the steelmaking speed, facilitate the control of chemical composition and improve the quality of steel.
In the application of silicon carbide crucible, the role of metal exercise and purification has been highly affirmed by users. In the crucible application industry, the position of silicon carbide crucible can be said to be pivotal.
Because silicon carbide is made of quartz sand, petroleum coke, sawdust and other materials through high-temperature exercise in the resistance furnace, the silicon carbide crucible has strong fire resistance ability in metal exercise activities, so it is enough to ensure the high temperature required for exercise, greatly reduce the difficulty of metal refining, save cost and improve application efficiency.
Post time: Sep-13-2021