Factors affecting the price of graphite:
1, the origin of graphite is different: graphite ore is widely distributed at home and abroad, and many factors such as the carbon content of ore also affect the price of graphite.
2. The technical indexes of graphite production are different: the purity is the same, but the subtle differences of graphite indexes will greatly change the price of graphite, and the prices of graphite with different purity are obviously different.
3. Different production processes of graphite: There are many kinds of production processes of graphite. Different production processes increase the cost of graphite, so the price of graphite is also unstable.
4. Different transportation costs of graphite: Different transportation costs and prices in different regions will also cause more changes in graphite prices.
5. Imperfect graphite import and export policy: the state restricts imports and encourages the export of graphite, which will definitely increase the price of graphite.
6. Supply and demand of graphite: Graphite is widely used, and the shortage of supply and demand in some areas will make the price of graphite soar.
Extended data:
Application:
Graphite can be used to produce refractories, conductive materials, wear-resistant materials, lubricants, high-temperature resistant sealing materials, corrosion-resistant materials, thermal insulation materials, adsorption materials, friction materials and radiation-proof materials. These materials are widely used in metallurgy, petrochemical industry, machinery industry, electronics industry, nuclear industry and national defense.
1, refractory material
In the iron and steel industry, graphite refractories are used for the refractory lining of electric arc furnaces and oxygen converters, as well as the refractory lining of molten steel ladle. Graphite refractories mainly include monolithic castable, magnesia-carbon brick and aluminum-graphite refractories. Graphite is also used as a film-forming material in powder metallurgy and metal casting. Adding graphite powder to molten steel can increase the carbon content of steel and make high carbon steel have many excellent properties.
2. Conductive materials
In the electrical industry, it is used to make electrodes, brushes, carbon rods, carbon tubes, positive electrodes of mercury rectifiers, graphite washers, telephone parts and coatings for TV picture tubes.
3. Wear-resistant and lubricating materials
Graphite is often used as lubricant in machinery industry. Lubricating oil cannot be used at high speed, high temperature and high pressure, while graphite wear-resistant materials can work without lubricating oil at a high sliding speed of -200 ~ 2000℃. Many equipments for transporting corrosive media widely use graphite materials to make piston cups, sealing rings and bearings, and do not need to add lubricating oil during operation.
Graphite emulsion is also a good lubricant for many metal processing (wire drawing and tube drawing).
4, corrosion resistant materials
Specially treated graphite has the characteristics of corrosion resistance, good thermal conductivity and low permeability, so it is widely used to make heat exchangers, reaction tanks, condensers, combustion towers, absorption towers, coolers, heaters, filters and pumps. Widely used in petrochemical industry, hydrometallurgy, acid-base production, synthetic fiber, paper making and other industrial sectors, which can save a lot of metal materials.