Raw materials for producing high-purity graphite, including aggregates, adhesives, and impregnating materials. Aggregates are usually made from needle shaped petroleum coke and asphalt coke; This is because needle shaped petroleum coke has a low ash content (usually less than 1%), is prone to graphitization at high temperatures, good conductivity and thermal conductivity, and a small coefficient of linear expansion.

For asphalt coke, even graphite obtained at the same graphitization temperature has higher electrical resistivity and mechanical strength. Therefore, in general graphitization product production, in addition to petroleum coke, there is also a certain proportion of asphalt coke to improve the mechanical strength of the product. Binders usually use coal tar, which is a product of the distillation process of coal tar. It is a black solid at room temperature and has no fixed melting point.

According to the different equipment conditions and process requirements of various graphite product manufacturers, the softening point of coal tar asphalt is between 50 ℃ and 250 ℃. Usually, high-purity or high-temperature coal tar asphalt is chosen to produce high-purity graphite products. The impregnating agent and adhesive are basically the same. Need to increase the stacking density, impermeability, lubricity, strength, and other special properties of the product. Require the addition of impregnating materials after baking, graphitization, or mechanical processing.

Choose high-purity or high-temperature coal tar asphalt to produce high-purity graphite products. The impregnating agent and adhesive are basically the same. Need to increase the stacking density, impermeability, lubricity, strength, and other special properties of the product. Require the addition of impregnating materials after baking, graphitization, or mechanical processing. Choose high-purity or high-temperature coal tar asphalt to produce high-purity graphite products. The impregnating agent and adhesive are basically the same. Need to increase the stacking density, impermeability, lubricity, strength, and other special properties of the product. Require the addition of impregnating materials after baking, graphitization, or mechanical processing.