Qingdao Hi-Duratight Co.,Ltd.

When it comes to high purity graphite molds, I believe many people know that this product is called this name because it has good chemical and physical properties and high carbon content when it is used.

Prepare dipping tank according to graphite rotor size specification. The dipping tank can be made of various materials according to the actual conditions, but it should be made of materials with acid corrosion resistance, good sealing, can not be infiltrated by liquid, with certain hardness and good durability.

1、Preheat before use. Specific operation: Before dipping into liquid aluminum, preheat for 5 minutes to 10 minutes at about 100 mm above the liquid level to avoid the impact of acute cooling on the material. In addition, before dipping into the solution, the gas must be passed first. In order to avoid the blockage of the pores on the nozzle, the gas supply can be stopped after the rotor raises the liquid level.

What problems should be paid attention to during the use of graphite rotor?

High temperature resistance: the melting point of graphite is 3850±50℃, the boiling point is 4250℃, even after the ultra-high temperature arc burning, the component loss is very small, the coefficient of thermal expansion is very small. The strength of graphite increases with the progress of temperature. At 2000℃, the strength of graphite doubles.