Nodular cast iron casting process is the use of nodular casting process, nodular cast iron can also like steel, through such a process as heat treatment to improve the performance. Nodular cast iron in the formation of molten iron in the process of graphite spheroid, but also because of spherical graphite, so that nodular cast iron has many advantages. The following small series of Furuite graphite details how spherical graphite is formed:
The spherical graphite
Spherical graphite in the formation of the process through two stages, the first is graphite nucleation, molten iron in the process of melting into liquid, there are a lot of non-metal and some impurities in the process of swimming, collision, and finally will be aggregated together to become graphite ball nucleus. After the graphite nucleates, many carbon atoms begin to accumulate on top of the graphite core. As more and more carbon atoms accumulate, they eventually become spherical. This is the second growth process of spherical graphite. Therefore, to obtain spherical graphite in the casting process, the control of graphite in the growth process is very important.
Furuite graphite research found that spherical graphite has a high charge and discharge capacity and electrochemical stability, is an ideal lithium battery anode material and an important ultra high capacitor material, with a high performance-to-price ratio. At the same time, it has excellent electrical conductivity and chemical stability, high charge and discharge capacity, long cycle life, green environmental protection.
Post time: Mar-21-2022