We annual output of 5000 tons of carbon fiber precursor project was completed and put into production in September 5, 2011,and self-developed the wet two-step spinning process has gotten national invention patent.Through continual innovation and development, by end of July 2017, the output of the carbon fiber precursor wasexpanded to 20000 tons; the quality has reached the level of T700; Sales increased exponentially year by year,, the domestic market share of more than 50%, and successfully enter the international market, and become toChina's largest carbon fiber precursor production base。The company has built an annual output of 200 tons carbonization experiment line and complete carbon fiber and precursor inspection instruments and equipment.

　　We has developed into the carbon fiber manufacturer of carbon fiber precursor, carbon fiber, preoxidized fiber, high-strength industrial fiber as a whole,with obvious advantages of industrialization due to thelarge tow low cost. Products are 1K, 3K, 6K, 12K, 24K, 48K, carbon fiber precursor, carbon fiber and related products,and has been widely used in sports, industry, construction, automobile, military, aviation, aerospace and other fields.

Product Details:

　　Graphite rotor is composed of two parts of rotor bar and nozzle. The transmission system drives graphite rotor rotation, argon or nitrogen via the rotor pole, aluminum melt blowing nozzle. High speed rotating graphite rotor into aluminum melt with argon or nitrogen scattered many small bubbles, which are dispersed in the liquid metal, and the rotation of the rotor to hydrogen and inclusions in Al melt diffusion, the bubble contact, bubbles in the melt by the gas pressure difference and surface adsorption principle, absorption melt the hydrogen adsorption and oxidation slag, and with the bubble was taken out of the melt surface, the melt will be purified.

　　Graphite rotor speed can be adjusted by frequency converter to achieve stepless regulation, up to 700 r/min. Specification for graphite rotor diameter of 70mm ~ 250 mm, specifications for the impeller diameter 85mm ~ 350 mm, high purity graphite oxidation rotor has the characteristics of high strength, high temperature resistance, corrosion resistant aluminum flow. In the gas purification process, the surface is Aluminum Alloy liquid nitrogen into the cover, the graphite rotor exposed Aluminum Alloy liquid in an inert gas and prevent the rotor of high temperature oxidation, prolong the service life of the rotor. The impeller is streamlined, can reduce the resistance of rotation, the friction between the impeller and the aluminum alloy is relatively small. So that the gas removal rate is above 50%, the smelting time is shortened, and the production cost is reduced.

　　Using graphite rotor operating technique:

　　1, before using the preheating: graphite rotor immersed in liquid aluminum, above the liquid surface is about 100mm at 5min~10min, to avoid quenching effect on material; must pass into the liquid gas rotor; rotor can be put forward in the surface after the cessation of gas supply, to prevent the rotor nozzle clogging pores.

　　2, the separation of air: in the purification tank room through the nitrogen or argon, to ensure that the box room for positive pressure, isolation of foreign air, to prevent the oxidation of graphite rotor.

　　3, the rotor immersed depth: the reasonable depth of graphite rotor immersed in molten aluminum, to strengthen the surface of aluminum exposed set below about 80mm, soaked in 60mm, which can effectively increase the rotor loss and erosion time antioxidant.

　　4, smooth transmission system: graphite rotor and transmission system is through a connecting rod (pipe) are connected, the connecting rod long deformation under high temperature, or transmission equipment related parts loosening will affect the rotor of neutral and running stability, easy to make the graphite rotor broken or bump damage.

　　5, to pure argon or nitrogen: if the pipeline, connectors and other components of gas leakage caused by argon or nitrogen gas into the aluminum melt is not pure, the upper part of the rotor is oxidized seriously, even make several jet holes at the lower part of the rotor is also oxidized, it will greatly shorten the service life of the rotor.

　　Pure graphite rod has high density, high strength, high purity graphite made, than ordinary graphite rod is to wear a little, but also relative wear resistance, some graphite products need to in the rotating device, so this requires ultra high pure graphite abrasion resistance, because there will be dust in repeated rotation friction thus, high purity graphite product itself is not very wear-resistant.

　　Gao Chunshi said the high purity materials simple ink manufactured by high purity graphite of high purity graphite rods with the same specific, high purity graphite rod belongs to artificial graphite, graphite powder is called asphalt binder or coal oil coke after high pressure extrusion molding machine, and then after several high-temperature roasting and impregnation, the inside of the graphite the adhesive has evaporated, and fill the gap by impregnation evaporation, so stomatal production and processing of high pure graphite rods, chlamydia, has the advantages of high density, high hardness, wear resistance, high strength characteristics.

　　Ordinary graphite cudgels pure graphite rod difference density and porosity of graphite rods, graphite rods without impregnation and calcination, is the use of graphite powder and binder extrusion molding, strength and density are very soft, falling dust, easy to loose. Greatly reduce the graphite conductive and lubrication characteristics. There is the use of graphite powder particles of different sizes, the graphite materials are of high purity graphite as raw materials for processing the high pure graphite graphite rod is used mostly recycled graphite powder, graphite powder is recycled some recycled graphite products used in pulverizing with binder molding, graphite powder so this impure, graphite raw materials produced graphite particles of coarse, large pores, trachoma and more. Mainly used for carbon arc gouging carbon rod cutting foundry, appearance is coated with a layer of copper to moisture conductive around.

　　Application environment of high purity graphite rod:

　　High pure graphite rod electrothermal commonly used in high temperature vacuum furnace body, a graphite rod maximum temperature is 3000 degrees centigrade, the graphite rods are easily oxidized at high temperature in vacuum, the graphite rods only in the neutral atmosphere or reducing atmosphere in use. Its lower thermal expansion coefficient, high thermal conductivity, resistance coefficient (8~13) * 10-6 Omega - m, SiC, MoSi2 processing is good, high temperature resistance, resistance to extreme heat is good, the price is cheaper.

　　Graphite crucible materials selected for high pure graphite, high purity graphite is widely used in metallurgy, casting, mold and other industries, the production of high precision CNC machining equipment for horizontal continuous casting of high purity, high strength, high density graphite graphite mould mould; electronic industry; metallurgical industry by Shi Momo and other shapes, graphite processing products all kinds of parts can be realized, the machining precision and the roughness of the graphite demand.

　　Performance of graphite crucible:

　　1, thermal stability: the use of the graphite crucible for emergency cooling, special design to ensure the reliability of product quality.

　　2, erosion resistance matrix design fine uniform, delaying the crucible erosion degree.

　　3, impact resistance: graphite crucible can withstand high heat shock intensity, so any process can be assured.

　　4, acid resistance: special materials to join a significant improvement in the quality of the crucible, in terms of the performance of excellent acid resistance, and greatly extend the life of the graphite crucible.

　　5, high heat conductivity, high fixed carbon content: to ensure good thermal conductivity, shorten the solution time, and significantly reduce the fuel consumption or other energy consumption.

　　6, metal pollution control: strict control of material composition, to ensure that the dissolution of the graphite crucible on the metal without pollution.

　　7, quality stability: high pressure forming process and quality assurance system to more fully guarantee the stability of the quality. Welcome to map sample processing, and please inform us of the use of the products you need, we will choose the right material for you to provide satisfactory products and services.

　　Graphite crucible, because of its excellent performance, so in metallurgy, casting, mechanical, chemical and other industrial sectors, is widely used in the smelting of alloy tool steel and non-ferrous metals and alloys. And has a good technical and economic results.

　　Vanadium battery is a new type of energy storage battery developed in recent years, because of its high energy efficiency and long service life.

　　Environmental friendly and cheap, operating and maintenance costs low, many of the characteristics of the rapid development of. But at present, there are some problems in vanadium battery. There are many factors that affect the performance of vanadium battery, including the electrode material performance, the positive and negative electrode reaction is an important factor.

　　Graphite felt has a series of excellent properties, such as high specific strength, high specific modulus, high temperature resistance, corrosion resistance, conductivity and thermal expansion coefficient, so it is used in the field of vanadium battery. However, it is found that the active surface area is smaller than the surface area, the surface energy is low, and the wettability is poor.

　　By low temperature liquid phase oxidation method for surface oxidation of graphite felt, with different concentration and Potassium Permanganate solution at different temperature and acid solution on Potassium Permanganate graphite felt for processing, to obtain the performance of graphite felt electrode material excellent. The graphite felt surface becomes smooth after Potassium Permanganate solution treatment.

　　The surface polar groups of the graphite felt treated by different Potassium Permanganate solution increased, and the hydrophilicity was improved. Graphite felt on the surface in the process of Potassium Permanganate solution deposition on the Potassium Permanganate, is not conducive to V (IV) in the above reaction.

　　Another way to improve the activity of graphite felt is to deposit metal or metal oxide on the surface of graphite felt. Transition metal oxide or semiconductor compound.

　　Acid graphite rod as non metal products, as carbon arc gouging cutting process in an essential pre welding cutting supplies, is composed of carbon and graphite with appropriate adhesive, through the extrusion, the temperature of 2200 DEG C after baking rotary plating a layer made from copper, high temperature resistance, good electrical conductivity, not easy to fracture, suitable for metal cutting into required shape.

　　Due to the acid resistant graphite rod using the temperature of high conductivity and good chemical stability. It has been widely used in machinery, metallurgy, national defense, chemical, foundry, non-ferrous alloy, light and other fields, especially the black acid graphite rod, was also used for the field of ceramics, semiconductors, medicine, environmental protection, laboratory analysis, become non metallic materials widely used. When cutting steel, the use of flammable, explosive gas, such as oxygen acetylene flame cutting is not required, the cost is low, operation and use of safety. You can use the method of processing a variety of arc cutting can not use gas cutting processing of metals, such as iron, stainless steel, copper, aluminum, high efficiency, and can obtain the ideal effect.

　　Performance of acid resistant graphite rod:

　　The element is hard and brittle texture, low expansion coefficient, can quench heat, not easy to deformation, good chemical stability, acid resistance is extremely strong, does not react with acid, alkali resistant ability is poor, can decompose rod under high temperature corrosion.

　　The bending strength of the acid proof graphite rod is more and more larger with the increase of the temperature of the component. The resistance value, and is reflected by the resistance, according to the standards stipulated in the 25 meters by micro ohms. The surface load current density of the element is closely related to the raw material formula and the pressing density of the black acid proof graphite bar, and can be arbitrarily adjusted according to the requirement.

　　Acid proof graphite rod:

　　1, acid resistant graphite rod must be kept dry, damp must be dried before use.

　　2, used in the DC power supply of acid resistant graphite rod connected to the positive electrode, the work of the negative electrode.

　　3, compressed air pressure to maintain 0.5-1.6MPa.

　　4, acid resistant graphite rod and the arc distance between the workpiece is about 3mm, acid proof graphite stick out of the clamp is about 100mm.

　　5, acid resistant graphite rod and the workpiece into a 45 degree angle, and along the tangent (or straight line) direction planing.

　　6, acid resistant graphite rod must be well ventilated when used. Operating current operation.

　　Application domain:

　　Graphite and graphite products are widely used in various fields of machinery, electronics, semiconductor, silicon, metallurgy, petroleum, chemical, textile, electrical appliances, motor, electric, transportation, communications, aviation, atomic energy, medicine, food, biological engineering, etc..

　　Graphite plate is widely used as bipolar plate for proton exchange membrane fuel cell due to its good electrical conductivity, thermal conductivity and corrosion resistance. But as a result of the graphite plate in the process of burning coal tar as the binder will be oxidized or volatile, cause there are holes with different sizes of graphite plate products, the porosity is about 18.2% ~ 24.3%, such a high rate of stomata use graphite plate. At present, more and more researchers in the world use organic matter such as phenol formaldehyde resin, paraffin wax, asphalt, carbon silane and other holes to fill the graphite plate, reduce the porosity, to achieve the purpose of sealing graphite plate. Organic matter has the advantages of high molecular weight, long molecular chain and good deformation performance, so it can be well sealed. But because the organic matter seems to penetrate into the graphite plate cavity, and even penetrate into the graphite sheet layer, forming the composite material, thus increasing the resistance and surface resistance of graphite plate. The theory of voltage of single proton exchange membrane fuel cell is only 1.229 V, the greater the material resistance of the battery, the output power is small, therefore, most of the organic material is not suitable for the impregnation of proton exchange membrane fuel cell with graphite bipolar plate.

　　The performance of the battery stack assembled by the dipping process is much better than the performance of the reactor without impregnation. At the same current density, the average battery voltage is higher than 40 mV, and the open circuit voltage of the battery is increased by more than 20 mV. After impregnation graphite plate used for fuel cell bipolar plates, reaction gas not in series, H2 and O2 in air is not directly in the electric catalyst reaction caused by the loss of water, fuel gas, and beneficial to uniform distribution current in the battery, ensure the battery stack performance.

　　(1) using graphite bipolar plate in the vacuum pressure immersion Na2SiO3 concentrated solution, and further add acid to heat to make it into the SiO2 method to improve the performance of fuel cell. Under the experimental conditions of keeping the vacuum degree of -0. 1 MPa and the pressure of 0.6 SiO2, the residual amount of in the graphite plate increased with time, and the maximum amount of MPa was up to 7.6%.

　　(2) the porosity of the graphite plate decreases with the increase of the SiO2 residue, and the porosity of the graphite plate is decreased from 18.2% to 3.3%, and the porosity is reduced by more than 70%. Impregnation process did not affect the resistance of graphite plate.

　　(3) after impregnation of graphite plate used as a bipolar plate of the proton exchange membrane fuel cell stack, the average voltage of the same current density increased by more than 40 mV, ensuring the performance of the fuel cell.

　　The graphite felt electrode used for vanadium redox flow battery was used in the electrochemical treatment, the activity of the electrode was improved, the voltage efficiency was increased, and the current efficiency was improved. After electrochemical treatment, the O/C ratio of graphite felt surface increases, and the main increase is COOH functional group.

　　The analysis results show that the surface of carbon fiber is etched, and the specific surface area is increased. The increase of the electrode activity is attributed to the increase of the number of COOH functional groups on the surface of carbon fiber and the increase of specific surface area.

　　The small capacity of the battery has been successfully applied in human life, further research and development of new environmentally friendly battery suitable for large-scale energy storage, development and utilization of new energy sources, will have great social and economic significance.

　　All vanadium redox flow battery can be regarded as the representative of the new energy storage battery, compared with other batteries, it has a unique advantage, and has been the attention of scientists at home and abroad, at present, the vanadium battery has been abroad applied to wind power plant, peak load regulation of power grid and solar photovoltaic power station demonstration operation. However, the development of vanadium battery is still limited, and the electrode material is a very important factor.

　　The electrode material is mainly divided into metal electrode and carbon electrode, wherein the carbon electrode with good stability reflects the greater advantage, and the carbon electrode, graphite felt materials with its advantages of real surface area is much larger than the geometric surface area and occupies the dominant position, the graphite felt were activated by concentrated sulfuric acid by liquid phase oxidation and air oxidation method, that can greatly improve the electrochemical performance of vanadium battery.

　　Although the process is simple, the process is simple, the operation is small, and the oxidation reaction is not easy to control. Concentrated sulfuric acid oxidation process is very dangerous, industrial production is very difficult. The electrochemical oxidation method, which is easy to control, easy to control, and easy to realize industrialized operation, is easy to control.

　　The graphite sintering mould used in powder sintering industry began in the early 70s, accompanied by geological exploration, coal exploration and mining, oil exploration and drilling, highway cutting, especially the rapid development of granite and marble mining and cutting industry, the demand of a substantial amount of diamond alloy material and hard alloy materials the demand for graphite sintering mould increased which is matched with the increases.

　　A wide variety of graphite sintering mould applications which used in powder metallurgy industry are from man-made diamond manufacturing industry.

　　The graphite sintering mould for diamond tools is mainly used in the two fields of building materials and exploration.

　　The graphite sintering mould used for diamond saw blade is mainly in the production of cutting marble, highway, ceramic tile and so on. It has the high demand of the physical and chemical technology properties of sintering mould. The dimensional tolerances of the machining parts are also very strict. The main products: sintering diamond cutter head combination graphite mould, sintering diamond saw blade graphite mould, diamond core drill with sintering graphite mould, diamond grinding wheel with sintered graphite mould, diamond wire saw sintered graphite mould used in petroleum drilling clay mold, gage ring and nozzle rod, sintering mold, diamond saw blade diamond grinding sintering mould, sintering diamond drilling tool with graphite mould.

　　The characteristics of the raw material of the graphite sintering mould: high temperature resistance, high oxidation resistance and high mechanical strength.

　　Our company has several imported high precision CNC machining equipments, and a group of more than 10 years of experience elites in the management, we collect the set design, development and manufacturing in one and can design new products to customers efficiently, provide the best solutions.

　　All vanadium redox flow battery (VRB battery, VRB) is a new type of green environmental protection battery, has the advantages of high efficiency, long service life, safe and reliable, can be used as a large energy storage device, the wind, hydro, solar and other unstable energy into electrical energy storage to be used as a backup power supply has a wide application prospect.

　　The hydrophilic and electrochemical activity of PAN based (PAN) graphite felt is poor and the graphite felt needs to be modified to be better used in vanadium battery. In order to improve the electrochemical activity of graphite felt, the two cerium oxide was modified on graphite felt by ethanol solution method and sol gel method. Two cerium oxide has the capability of storing and releasing oxygen and the diffusion capacity of fast oxygen vacancies, which is the most active catalyst in rare earth oxides.

　　Modified graphite felt, in the battery testing of the highest coulomb efficiency can reach 95%, energy efficiency is also close to 90%.Surface deposition method on the surface of graphite felt with catalytic activity of metal, is another kind of modified graphite felt. On the surface of graphite felt were introduced into manganese, cobalt and nickel three metals, and physical and electrochemical properties test of modified graphite felt. The results showed that the modified surface of graphite fiber functional changes, wettability of graphite felt, to improve its electrochemical activity. Battery test results show that the coulomb efficiency can reach 90%.

　　Graphite felt is a great ratio of carbon fiber surface area, can provide a larger electrochemical reaction for the electrochemical reaction, while the graphite felt has strong oxidation and corrosion resistance, and in addition to the conductive properties of itself, because the graphite felt electrode can be compressed, as battery assembly, contact resistance and bipolar in the small, compared with the metal electrode, the cost is relatively low, is a kind of ideal electrode material.