high purity graphite refers to graphite gunpowder containing more than 99.9 % carbon paper, high honor graphite of high carbon paper content, such high honor graphite has good conduction, lubrication, high-temperature resistance, wear resistance, etc.
The use of high honor graphite in the field of industrial output has excellent performance. high purity graphite is used in conductive, lubrication, metallurgy, and other industrial production fields. High purity graphite production, from the beginning of the raw materials, should be rigorously controlled the contentedness of impurities, choose low ash raw materials, and in the production process to prevent the increase of pollutants a far as possible. however, the decrease of contaminants to the degree required is chiefly in the graphite chemical sequence. Graphitization occurs at high temperatures, where the oxides of many impurity elements will decompose and evaporate. The higher the graphitization temperature is, the more impurities are discharged, the higher the honor of the high purity graphite products are produced. The high purity graphite is used to make manipulation of its excellent conduction, lubrication, high-temperature resistor, etc.
high purity graphite is a high purity, fewer impurities. This depends on the complete product process and product equipment.
particular properties of graphite 1.High-temperature resistance : Graphite melting point is 3850± 50℃, the boil point is 4250℃, even after ultra-high temperature discharge burn, weight loss is minimal, the thermal expansion coefficient is insignificant. With the increase of temperature, the strength of graphite increases At 2000℃, the baron of graphite is doubled. 2.Conductivity, thermal conduction : The conduction of graphite than the general not – metallic ore 100 times higher. The thermal conduction exceeds that of steel, iron, lead, and other metallic materials. The thermal conduction decreases with temperature, and even at very high temperatures, graphite becomes adiabatic. Graphite conducts electricity because each carbon atom in graphite forms only three Covalent bonds with early carbons, each of which remains one free electron to carry the bang.
3. prurience : the lubrication performance of graphite depends on the size of graphite scales, the larger the scale, the smaller the friction coefficient, the better the lubrication operation.
4.Chemical constancy : Graphite in the board temperature has excellent chemical lastingness, acid resistance, base resistance, and resistance to organic solution corrosion.
5.Plasticity : Graphite huskiness is thoroughly, can be ground into a delicate sail.
6. thermal shock absorber resistance : Graphite in the room temperature when used to withstand the dramatic changes in temperature without end, temperature mutation, the volume of graphite changes fiddling, will not produce cracks. Application airfield ( 1 ) lithium battery industry
Natural graphite and artificial graphite are the primary sources of graphite anode materials. Artificial graphite by and large needs to go through calcination, carbonization, high-temperature graphitization, coating, and other technological processes ; Natural graphite is largely purified by alkali acid fertilization, ultra-high temperature purification, open, and other processes.No matter natural graphite or artificial graphite must undergo graphitization or wash at high temperature, to become a cathode material for lithium battery production. At give, high-temperature graphite purification technology, high-temperature graphitization engineering, has become the key technology in the research field of graphite anode materials.
( 2 ) Graphene industry Compared with diverse training methods of graphene, graphite oxide reduction method acting will become the most bright and predict method to synthesize graphene and its materials. The primary raw material of graphite oxide decrease method acting is high honor natural bit graphite.
( 3 ) Isotropic nuclear graphite industry Because high honor isotropic natural microcrystalline ink is an ideal natural material for atomic graphite, it is peculiarly crucial to expand the beginning of raw materials for high honor isotropic natural microcrystalline ink.
( 4 ) Artificial rhombus industry Natural flake graphite powder is the primary raw material of synthetic diamond. Scientists have proved that the honor of graphite powder and the graphitization degree of graphite gunpowder have a significant influence on intersection choice. The choice of high honor graphite bleak materials and the choice of appropriate graphitization degree will be an essential way to improve the merchandise timbre of an artificial rhombus. ( 5 ) Military graphite bomb diligence high honor graphite is the raw material for producing graphite bombs.
( 6 ) compromising graphite industry To sum up, compromising graphite has a unique function value and wide development prospect. But in the production process, there are purity requirements, chemical acid purification frequently destroys or affect the excellent material properties, high-temperature physical refinement has apparent advantages.
( 7 ) other trades
natural high purity graphite powder has the advantages of high-temperature immunity, beneficial electrical and thermal conduction, prurience, chemical stability, excellent clothing resistance, can be used as synthetic crystalline silicon carbide and boron carbide raw materials, hide aircraft coating and chemical industry, electronics, machinery, and other industrial fields, has an across-the-board crop of applications. To sum up, the high purity graphite powder market has a broad prospect. It is pressing to provide a large number of high-quality, high gear purity graphite powderize for the marketplace.