Graphite productsThere are many advantages. Due to its special structure, it has many characteristics such as high temperature resistance, thermal shock resistance, conductivity, lubricity, chemical stability and plasticity. It has always been an indispensable strategic resource in the development of military industry, modern industry and high, new and advanced technology. Graphite products, such as graphite rings and graphite boats, have a wide range of applications. An international expert predicted that "the 20th century will be the century of silicon, and the 21st century will be the century of carbon". As an important strategic non-metallic mineral product, the graphite industry will be subject to access management. The following Xiaobian will introduce the reason why the strength of graphite increases with the increase of temperature:

The strength of graphite increases significantly at high temperature. The tensile strength of graphite increases by 20% at 1000 ° C and 75% at 2000 ° C. some even double the strength at normal temperature. If the temperature further increases, the strength will decrease.

1、 Because the thermal expansion coefficient of graphite crystal has large anisotropy, large stress will be generated in the crystal after cooling at high temperature. At low temperature, the strength of graphite is low, which is caused by the superposition of external force and internal stress. However, when heated to a certain temperature, the internal stress gradually decreases, so the strength increases with the increase of temperature.

2、 Graphite will not produce local plastic deformation at low temperature, so even if a relatively low load is given, the stress will be very concentrated and it will cause fracture. However, when the temperature rises to a certain extent, local deformation will occur near the stress concentration point due to the plastic relationship, and the stress will be dispersed. Even if a relatively large load is applied, it will not cause fracture.

The above isGraphite productsDongguan Jiecheng graphite products Co., Ltd. specializes in the production of graphite products such as graphite flakes, graphite molds, graphite bearings, anti-oxidation graphite rotors, etc. the product quality is excellent and the reputation of the enterprise is guaranteed. New and old customers from all over the country are welcome to communicate with us.