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Impregnation graphite material is a composite material that fills impregnating agents such as resin and metal into the pores of graphite through an impregnation process and then solidifies through heat treatment. By combining graphite with matrix materials such as resin, copper, antimony, etc., the conductivity, wear resistance or corrosion resistance of the matrix material can be improved. Main types of Impregnated graphite material are: Resin impregnated graphite, Copper impregnated graphite material, antimony impregnated graphite, silver impregnated graphite and others. See some Typical types of impregnated graphite materials below: Pure graphite material will volatile due to volatile substances in the adhesive and binder aggregation, decomposition and carbide, when baking, thus appeared the pore (10% ~ 30% porosity). If pure graphite Used as sealing ring, it will be permeable or leakage, and strength is low, so we fill the gap increased, and make it not permeability after resin process, it also increased the strength. But the heat resistance and corrosion resistance have varying degrees of decline. Impregnated material use mainly 3 types of material: organic resin, inorganic substances and metal. Resin impregnated graphite: high density (up to 2.0-2.5g/cm³), but poor high temperature resistance (about 200℃ or less), suitable for corrosive environments; resin impregnated graphite material is a composite material that is impregnated with synthetic resin into the surface and internal pores of graphite and then solidified through heat treatment. Its core feature is to improve the mechanical strength and corrosion resistance of graphite through the impregnation process while retaining its excellent thermal conductivity. main grade names that we produce: M106H， M120H， M106K，M120K， M254K Metal impregnated graphite: Combines the high temperature resistance of graphite (up to 800°C or more) and the mechanical strength of metal to improve wear resistance and conductivity. Copper impregnated graphite material uses carbon graphite as the base material and impregnates copper alloy through vacuum pressure. Utilize the high hardness, good lubricity and chemical stability of carbon graphite as the base. Utilize the high melting point, ductility, high thermal conductivity and corrosion resistance of copper alloy to form a continuous, stable and high mechanical strength mechanical sealing material. Current products have been widely used in metallurgical continuous casting machine, rolling just equipment, mining machinery, shipping, steam turbine, water turbine, injection molding machine and equipment in the production line. main grade name that we produce: M106P，M120P， M254P Metal impregnated graphite also includes silver impregnated graphite, antimony impregnated graphite, aluminum impregnated graphite, Babbitt alloy impregnated graphite, etc. Antimony impregnated graphite material is a kind of excellent self-lubrication antifriction material, it can be in high temperature of 500 ° C, cryogenic – 253 ° C, high speed 20000 RPM, high pressure 10 mpa, or high viscosity medium, especially suitable for medium such as water, oil, kerosene condition under the conditions of use. Antimony metal does not dissolve in water, hydrochloric acid and strong alkali solution. Antimony in the case of increasing load and improve the speed and melting steel friction when rare phenomenon, therefore, leach antimony graphite materials can also be applied to medium such as water, hydrochloric acid, strong alkali. And leaching of antimony graphite material can be silicon carbide, tungsten carbide or stainless steel, etc. Main grade names that we produce: M106D，M120D， M254D.

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Copper impregnated graphite is a new type of mechanical graphite material prepared by impregnating molten copper alloy into the pores of graphite using carbon graphite as the matrix material through vacuum pressure impregnation. Copper impregnated graphite has excellent electrical conductivity. At the same time, copper elements can also improve its strength and hardness, enhance its wear resistance and corrosion resistance. Therefore, Copper impregnated graphite is widely used in mechanical seals, thermal management, electronic equipment, machinery manufacturing and other fields. Material composition and production process of Copper impregnated graphite: Carbon graphite is used as the matrix material, and copper alloy is impregnated by vacuum pressure. resin,copper,antimony,impregnated,mechanical,seal,bearings,carbon,graphite,material,manufacturer,factory,China (6) resin,copper,antimony,impregnated, mechanical, seal, bearings, carbon,graphite,material,manufacturer, factory, China (6) The high hardness, good lubricity and chemical stability of carbon graphite are used as the matrix. The high melting point of copper alloy: 2800℃, ductility, high thermal conductivity and corrosion resistance are used to form a continuous, stable and high mechanical strength mechanical sealing material. Copper impregnated graphite production process: The preparation of Copper impregnated graphite usually adopts vacuum pressure impregnation method. The high-purity carbon graphite matrix is prepared by cold pressing carbonization process to ensure that the matrix has an open pore structure to accommodate copper alloy impregnation. In a vacuum environment, the molten copper alloy is impregnated into the carbon graphite matrix by pressure, so that the copper alloy fully penetrates into the pores of the matrix to form a uniformly distributed, continuous, stable, and high mechanical strength copper graphite material. Performance characteristics of Copper impregnated graphite materials: Improved mechanical properties: Enhanced hardness: The mechanical strength is increased by more than 3 times after copper impregnation, and the hardness is significantly improved, which is suitable for high wear-resistant scenes; Compressive strength: Due to the supporting role of the copper alloy, the compressive performance of the mechanical graphite material is greatly enhanced. Optimized physical properties: Thermal conductivity and electrical conductivity: The thermal conductivity is close to that of metal (exceeding steel, iron, etc.), and the electrical conductivity is 100 times higher than that of non-metal; Thermal expansion coefficient: Only 1/30 of that of copper, the deformation is small when the temperature changes, and the thermal shock resistance is excellent; Reduced density: The density is only 1/5 of that of copper, which reduces weight and reduces processing energy consumption. Chemical and corrosion resistance: Corrosion resistance: The chemical properties are stable at room temperature, resistant to acid and alkali corrosion, and suitable for harsh environments such as chemical and petroleum industries; Anti-oxidation: The copper layer is not easily oxidized at room temperature, which prolongs its service life. Improved processing performance: Processability: It can be machined by turning, grinding and other mechanical processing, and parts with complex shapes can also achieve high precision; Advantages of discharge machining: Graphite has fast conductivity (2-3 times faster than copper), is suitable for EDM, and has no burrs and is easy to polish.

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