Agriculture

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High purity molded graphite is a kind of high-quality graphite carbon material. When it is made, an organic compound with strong acid resistance is added. After a series of processes such as high-pressure forming and high-temperature heat treatment, it can effectively reduce the porosity of graphite products, improve the volume and density of the products, and has good acid resistance and wear resistance. Because of its good physical and chemical properties, it is also gradually used as the main material for mold making. Advantages of High Purity Graphite Material 01 High-temperature resistance: the melting point of graphite is 3850 ± 50 ℃, and the boiling point is 4250 ℃. Even if it is burned by an ultra-high temperature arc, the weight loss is very small, and the coefficient of thermal expansion is also very small. The strength of graphite increases with the increase of temperature. At 2000 ℃, the strength of graphite is doubled. 02 Conductivity and thermal conductivity: the conductivity of graphite is 100 times higher than that of non-metal. The thermal conductivity exceeds that of steel, iron, lead, and other metal materials. The coefficient decreases with the increase of temperature. Even at very high temperatures, graphite becomes an insulator. It can conduct electricity because each carbon atom in graphite only forms three covalent bonds with other carbon atoms, and each carbon atom still retains one free electron to transfer charge. 03 Lubricity: the lubricity of graphite depends on the size of the graphite scale. The larger the scale is, the smaller the friction coefficient is, and the better the lubricity is. 04 Chemical stability: graphite has good chemical stability at room temperature, and is resistant to acid, alkali, and organic solvent corrosion. 05 Plasticity: graphite has good toughness and can be rolled into thin sheets. 06 Thermal shock resistance: when graphite is used at room temperature, it can withstand the drastic change of temperature without damage. When the temperature changes suddenly, the volume of graphite changes little, and there will be no cracks. Characteristics of High Purity Graphite Material Excellent self-lubrication and low ash content; Good chemical corrosion resistance; High thermal conductivity and thermal stability; Sufficient mechanical strength and impact resistance; It is easy to machine and can be processed into products with various geometric shapes as required. As one ot the most reliable high purity graphite manufacturers, Zhongtai graphite provides graphite raw material, graphite sheets plates, high purity graphite powder, processed graphite ultra high purity, carbon and graphite products and etc. Want to know high purity graphite price or more? Please contact us.

In the field of sealing, many types of seals used to be unsuitable for the problem of liquid medium. Now we find a successful answer from graphite sealing ring, including the dynamic or static sealing parts in machinery, automobile, and other assemblies. Advantages of Wear-resistant Sealing Graphite Ring 01 The friction between graphite sealing ring equipment and moving parts should be small and the friction coefficient should be stable. 02 The graphite sealing ring has a good sealing function in the working pressure and certain temperature range and can move forward automatically with the increase of pressure. 03 The graphite sealing ring has a strong anti-corrosion ability, is not easy to aging, has a long service life, good wear resistance, and can automatically compensate to a certain extent after wear. 04 Simple structure, easy to use and protect, so that the seal ring life is longer. Application of Wear-resistant Sealing Graphite Ring The wear-resistant graphite sealing ring has the advantages of flexibility, good self-lubricating resistance, high rebound coefficient, chemical stability, good corrosivity, and effective sealing effect. Wear-resistant graphite ring seal is suitable for packing sealing of organic pumps and valves, as well as compressors, pumps, valves, chemical instruments, and meters. Wear-resistant graphite packing seal is suitable for petroleum equipment, power plant, chemical industry, steel plant, and other departments. As one of the graphite seal ring manufacturers, we also provide carbon graphite seal rings for customers. As a reliable graphite material supplier, Zhongtai graphite provides graphite raw material, highly oriented pyrolytic graphite, die formed graphite rings, carbon graphite products and etc. Want to know more? Please contact us.

High purity graphite plate is made of high-quality high-purity graphite. The carbon content of graphite is more than 99.99%. Petroleum coke is used as raw material, advanced production technology and equipment are used to produce it. It is widely used in refractory and coating in metallurgical industry, stabilizer of military industry pyrotechnics, pencil core of light industry, carbon brush of electrical industry, electrode of battery industry, catalyst additive of chemical fertilizer industry, etc. Application of High Purity Graphite Plate In industry, it can be used to make a high-temperature crucible for smelting, protective agent for steel ingot, lubricant for mechanical industry, electrode and pencil lead, advanced refractory and coating for metallurgical industry, pyrotechnic stabilizer for military industry, carbon brush for the electrical industry, and catalyst for the chemical fertilizer industry. In addition, it is widely used in solar cells, sensors, high-performance nanoelectronic devices, and other fields. Make refractory in metallurgical industry; Make anticorrosive materials in the petroleum industry; Making conductive materials in the electronic industry. Advantages of High Purity Graphite Plate 01 The fuel cell composed of graphite plate has more advantages than lithium battery in terms of long life, charging time, and service life; 02 As an independent power generation system, graphite plate fuel cell generates electrochemical reaction through oxygen and hydrogen, so the discharged water will not cause environmental pollution; How To Prolong The Service Life Of Graphite Plate The high-purity graphite plate is of good quality, so it should be handled with care when using. If it falls from a high altitude many times, the graphite plate will crack and affect the use effect; The surface temperature of graphite plate will increase with the increase of current, so the current with low power should be used as far as possible; Parallel resistance should be used as much as possible. The graphite plate with high series resistance has concentrated load, which easily leads to short growth life of single graphite plate resistance; Increasing resistance slowly can prolong the service life of graphite plate When the graphite plate is heated, the outside contact with air will form a silicon oxide film and evolve into an anti-oxidation protective film, which is helpful for prolonging the use. As one of the most reliable high purity graphite manufacturers, Zhongtai graphite provides graphite raw material, graphite plate, high purity graphite powder, carbon graphite materials and etc. Want to know more? Please contact us.

Isostatic pressing graphite plate is pressed by a high-purity stone mill. It is closely connected with today's high technology. It is not only the material for manufacturing single crystal furnace, metal continuous casting graphite crystallizer, and graphite electrode for EDM but also the important material for manufacturing deceleration material and reflection material for rocket nozzle and graphite reactor. Application of Isostatic Pressing Graphite Plate 01 Such isomolded graphite plates are widely used in cemented carbide, aerospace, graphite reactor, and other fields. 02 Isostatic Pressing Graphite Plate is a new product developed in the world in recent 50 years. It not only has great achievements in civil use but also occupies an important position in the cutting-edge of national defense. It is a new material and attracts people's attention. 03 Isomolded graphite plate is mainly used in large copper production lines. Since 1985, China has introduced more than 30 production lines from Austria, France, Switzerland, Japan, and other countries, while more than 100 production lines have been designed and manufactured in China, all of which use graphite crystallizers. Characteristics of Isostatic Pressing Graphite Plate The isomolded graphite plate is named after its production process. The isostatic pressing forming method is applied. Due to the uniform pressure of liquid pressure in the forming process, the isostatic pressing graphite also has isotropic characteristics. The second characteristic of isomolded graphite plate is that it has large specification and fine structure. In the isostatic pressing mode, the transmission effect of pressure along the pressing direction is the same, so it can overcome the disadvantage of uneven product volume density caused by molding, greatly reduce the probability of product cracking, and promote the production of large-size and fine structure products. Isomolded graphite plate has the characteristics of homogeneity at the same time. That is, the internal structure is relatively uniform, and the bulk density, resistivity, and strength properties of each part are not different. It belongs to homogeneous graphite material. As a reliable graphite material supplier, Zhongtai graphite provides graphite raw material, highly oriented pyrolytic graphite, die formed graphite rings and etc. Want to know more? Please contact us.

It is a new product developed in the world in recent 50 years, which is closely related to today's high technology. It has the properties of high-temperature resistance, corrosion resistance, high strength, good conductivity, and thermal conductivity, self-lubrication, low coefficient of thermal expansion, and good strength at high temperature. It is widely used in high-tech fields such as machinery, chemical industry, electronics, aerospace, and nuclear industry. Excellent properties of isostatic graphite material 01 Uniform particle size and good quality stability; 02 Excellent self lubrication, chemical corrosion resistance, high thermal conductivity and thermal stability; 03 Sufficient mechanical strength and impact resistance; 04 Uniform structure, dense and strong antioxidant capacity; 05 Good isotropy, and the characteristics are independent of size, shape and sampling direction; 06 It is easy to machine and can be processed into products with various geometric shapes as required. Main Uses of Isostatic Graphite Heater for Czochralski monocrystalline silicon thermal field and polycrystalline silicon ingot furnace In the thermal field of Czochralski monocrystalline silicon, there are about 30 kinds of isostatic press graphite components, such as crucible, heater, electrode, heat insulation shield plate, seed crystal holder, the base for rotating crucible, various round plates, heat reflection plates, etc. Among them, 80% of isostatic graphite is used to manufacture crucibles and heaters. In the manufacturing process of the polycrystalline silicon wafer of the solar cell, polycrystalline silicon fragments must be melted and cast into a polycrystalline silicon square ingot. The heater of the ingot furnace needs to be made of isostatic pressure graphite. Atomic energy industry Nuclear fission reactor (high-temperature gas-cooled reactor): graphite is a moderator and excellent reflector of neutrons; Nuclear fusion reactor: graphite material with good thermal conductivity and high mechanical strength is used as wall material facing the plasma. EDM electrode EDM with graphite or copper as the electrode is widely used in metal molds and other processing fields. Graphite crystallizer for non-ferrous metal continuous casting Isostatic pressing graphite has become the main material for making crystallizers because of its good properties in heat conduction, thermal stability, self-lubrication, anti-wetting, and chemical inertia. Other uses Isostatic graphite is also used to make sintering molds of diamond tools and cemented carbide, thermal field components of optical fiber wire drawing machine (heater, insulating cylinder, etc.), thermal field components of vacuum heat treatment furnace (heater, bearing frame, etc.), heat exchanger, mechanical seal components, piston ring, bearing, rocket nozzle, etc. As one of the most reliable graphite products suppliers, Zhongtai graphite provides graphite raw material, highly oriented pyrolytic graphite, die formed graphite rings and etc. Want to know more? Please contact us.

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