In recent years, graphite mould has been expanding its position in the modern industrial application industry. Different from the past, the present graphite mould is already a trend in the future. The following is to explain the two special characteristics of the graphite mould of Qingdao Hi-Duratight Co., LTD.

1、Wear Resistance

The general reason for the failure of graphite mould due to wear is that when the blank material is plastic denaturated in the die cavity, it flows and slides along the surface of the cavity, resulting in intense friction between the surface of the cavity and the blank.

（1）The wear resistance is related to the quantity, size, form, type and distribution of carbides in the material.

（2） One of the more important properties of graphite mould is the wear resistance of the material.

（3）The main factor affecting wear resistance is hardness. The higher hardness of graphite parts, the smaller the wear, the better the wear resistance.

2、Obdurability

Graphite moulds are generally used in harsh environments, and some need to bear relatively large impact load, resulting in brittle fracture. It is the high purity graphite products with relatively high toughness and strength, conducive to prevent the mould parts in the work of sudden brittle break. The toughtness is mainly related to the microstructure, grain size and carbon content of the material.