At present, the main raw material of graphite crucible used in graphite hot field in China is crystalline natural graphite. Therefore, it maintains various physical and chemical characteristics of the original natural graphite. That is: it has good thermal conductivity and high temperature resistance, small thermal expansion coefficient in the process of high temperature use, and has certain anti-strain performance to rapid heat and cold. Many people may have only heard of the graphite crucible thing, about the specific use of graphite crucible is not very well understood, together to understand what the graphite crucible is to do!

Graphite crucible is a kind of heating container, in our daily life, we may encounter some items melting when heating, so it will bring great trouble to our life, for example, we can't use aluminum container when making iron, because the melting point of iron is higher than aluminum, the things we want to melt don't melt, and the container melts first. So at this time graphite crucible appeared, people can smelt some metal by this graphite crucible, and it can avoid the accident of scalding while ensuring the smooth production, which is very helpful for our life. Graphite crucible has been widely used now, because it has the characteristics of high temperature without melting and corrosion resistance, that's why it is widely used in the smelting of alloy tool steel and the melting of non-ferrous metals and their alloys. And has a good technical and economic effect.

Graphite crucible has excellent performance, small coefficient of thermal expansion in the process of high temperature use, and has certain strain resistance to rapid cold and heat, so it is widely used in alloy tool steel smelting and smelting of non-ferrous metals and their alloys. Generally graphite crucible can be used for smelting non-ferrous metals such as copper, brass, gold, silver, zinc and lead and their alloys. The inner wall of graphite crucible is smooth, so the melted metal liquid is not easy to leak and adhere to the inner wall of the crucible, which makes the metal liquid have good fluidity and castability, and it is suitable for casting and molding in different molds, so it is very good for smelting alloys.