Why tungsten crucible can be used for melting metal?

The melting point of tungsten is as high as 3410℃, which makes the tungsten crucible able to withstand extremely high temperatures and can be used in vacuum inert gas under 2600 degrees, which provides a stable high-temperature environment for metal melting, and meets the melting needs of most of the metals, such as titanium, zirconium, hafnium, and other refractory metal melting.

The tungsten crucible can maintain good mechanical strength at high temperature and is not easy to be deformed or damaged, which ensures that the tungsten carbide crucible can stably carry the metal liquid in the process of metal melting, and avoids problems such as leakage of the metal liquid due to the deformation of the tungsten crucible.

Tungsten crucible has good chemical stability and is not easy to have chemical reaction with metal, which can ensure the purity of the melted metal. At the same time, its wear resistance is also good, which can extend the service life of the crucible.

The tungsten carbide  can transfer heat quickly, so that the metal material can be melted faster and the melting efficiency can be improved. When the temperature changes, its volume change is small, which can reduce the stress caused by thermal expansion and reduce the risk of crucible rupture.