Graphite crucible which includes (1), the static pressure molding silicon carbide - graphite crucible, (2) plastic forming (3) the plastic forming of molten copper, (4) lead cast special clay graphite crucible.

　　(1) The static pressure forming silicon carbide - graphite crucible series

　　It can also be divided into high temperature copper and copper alloy, special crucible for melting zinc and special crucible for melting. This series of crucible by isostatic pressure shaping, high density, high intensity. The material of the high purity natural flake graphite, high purity silicon carbide is used as main material and add advanced antioxidant and anti - corrosion agent, using resin as binder, the product has quick heat conduction, using ordered taller efficiency energy-saving features, has been widely used by many high-end melting, casting used by customers. Under the same condition, the average operating life is about four times of the ordinary clay crucible, and the same as the conventional crucible, which saves energy by 1/3. Energy saving crucible.

　　(2) plastic forming molten aluminium crucible

　　The series products are made of advanced formula, special equipment for forming equipment. The domestic leading level of melting aluminum crucible with plastic molding. Product thermal conductivity, corrosion resistance, oxidation resistance characteristics. For about three months to melt aluminum. And cost is high, the current has been used by the molten aluminum customers.

　　(3) a special crucible for plastic forming

　　This series of products is a common clay graphite crucible. Our company has accumulated decades of experience in the production, and after a series of transformation and upgrading, so that the series of products, stable performance, antioxidant, thermal shock resistance and corrosion resistance are better than similar products in the same industry. Simply referred to as the common crucible.

　　(4) lead cast special clay graphite crucible.

　　Lead cast products, is our company's patented product. This product is used for copper, copper processing, has one's own knack in. Life in the domestic lead, can be as long as three to five months. And the performance of the non domestic other manufacturers can be stable.

　　The carbon/graphite felt have the characteristics of light weight, high tensile, abrasion resistance and excellent eletctrical and are widely used in semiconductor, energy , machinery and other inductrial fields as thermal insulation material.. Since these furnaces work at extremely high temperatures, it is necessary to have insulation material that can withstand such high temperatures. Moreover, for energy conserving purposes, quality heat insulation material is the best choice. We pride ourselves in the ability to offer first class technical backup to our customer base. we produce all of our own carbon and graphite thermal insulation materials under the strictest quality standards.Flat, board and cylindrical shapes of products are available, it’swidley used in high vacuum and furnace f inert gas..

　　The rayon based rigid graphite felt and pan based rigid graphite felt are processed for inert or vacuum furnaces up to 2500 D.C. Graphite foil or paint can be covered on surfaces to reduce dusting,out gassing,or applied as heat reflection.

　　The graphite felt is normally classified into asphaltic based graphite felt, PAN based graphite felt &rayon-based graphite felt. The mainly application is electric conduction in the photovoltaic industry, as the heat retaining material, thermal insulation material for the smelting furnace and vacuum furnace, and in chemical industry it could be the filtration material, it can be used for Vacuum Furnace, High Temperature Sintering Furnace, Solar Silicon Furnace, crystal growth furnace, inert atmosphere furnaces, semiconductor furnace, multicrystalline DSS, Directional Solidification System(DSS) furnaces.

　　Graphite rigid felt is a shaped machined insulating material made of graphite fiber or felt and carbon binding.It is new material based on PAN-Carbon and graphite felt and bonded with special binding agent. With properties of rigid, smooth surface, low specific gravity,good anti-bending and compression strength, it can be used in vacuum furnace for heat insulation,in order to prevent fluffing, the felt can be surface-treated by special coating, graphite paper/cloth liner,etc.

　　The conductive and thermal conductivity of graphite is one hundred times higher than that of ordinary non-metallic minerals and the heat conductivity exceeds steel, iron, lead and other metal materials. The thermal conductivity decreases with the increase of temperature, even in high temperature, the graphite is adiabatic.

　　The lubrication of graphite depends on the size of the larger scale, the lower friction coefficient, and the smaller the friction coefficient the better lubricating performance.

　　The graphite has good toughness, it can be made into very thin sheets; violent change at room temperature when using can withstand temperature without damage, sudden temperature, volume change of graphite is small, no crack.

　　The melting point of the high temperature resistant graphite is 3850 + 50 DEG C, and the boiling point is 4250 DEG C. Even though the arc is burnt by ultra high temperature, the weight loss is very small, and the coefficient of thermal expansion is very small. The strength of graphite increases with the increase of temperature, and the strength of graphite is doubled at 2000 degrees centigrade.

　　Acid and alkali resistance of graphite has good chemical stability at room temperature, acid resistance, alkali and high pure graphite rods: corrosion resistance to organic solvents is commonly used in high pure graphite material processing, the graphite material after impregnation, roasting, extrusion with graphite rods with high function and characteristics. Pure graphite rod is also used for processing of graphite products, graphite parts etc.

　　Our company can provide all kinds of the graphite material for different application. The molded graphite and isostatic pressing graphite. The main physical and chemical performance index is up to standard. The compressive strength is up to 1 2 5 MPa, Shore hardness reaches 6 5 and the resistivity reaches 1 2 μ Ω m. we have applied for 10 patents including isostatic graphite producing method invention patent. Dedicated to strict quality control and thoughtful customer service, our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction. Selling well in all cities and provinces around China, our products are also exported to the clients around the world. please feel free to contact us If you are interested in any of our products or would like to discuss a custom order. We are looking forward to forming successful business relationships with new clients around the world in the near future!

　　1. status quo of isostatic graphite produced by foreign enterprises

　　Russia, Poland: two countries isostatic graphite development level, the development time of about 20 years later, due to the lack of investment, the quality of products, far falls in the USA and Germany, behind France and Japan and other countries Chinese, is still in the stage of development and perfection.

　　Japan: Japan attaches great importance to the development of isostatic graphite.

　　At present, the Japanese isostatic graphite in the yield, quality, variety, specifications and development should have reached the advanced level in the world, mainly in: in isostatic graphite developed up to the enterprise, the products most varieties, specifications, the most widely: Japan isostatic graphite is not only used in semiconductor, solar energy, metallurgy, mechanical processing, atomic energy industry, but also applied to biological engineering and motor manufacturing etc..

　　2. status quo of isostatic graphite production in domestic enterprises

　　The development of isostatic graphite (isotropic graphite) in China. At the beginning of 60s, our country began to study the isostatic pressing technology, and carried out the trial production of various kinds of carbon, graphite and other kinds of powder. According to preliminary statistics, at present, domestic companies involved in the development and production of isostatic graphite are about 9 enterprises capable of producing independently

　　3. domestic and foreign isostatic graphite industry gap

　　Looking at the quality of products at home and abroad, especially the user feedback information, we realized that compared with foreign manufacturers, we still have a big gap, mainly in the following aspects: (1) the mechanical strength of products needs to be improved Carbon graphite products are brittle materials, but their mechanical strength is restricted, but it is an important index. The use of this unit has more stringent requirements, and compared with foreign products, there is indeed a big gap. Improving the volume density of products is one of the effective measures to improve the mechanical strength, but it has the limit. In order to improve mechanical performance, comprehensive measures should be taken. The content of ash (impurity) in carbon graphite products is an important technical index, and each product has a definite requirement. This is especially true for isostatic graphite. Because it is mostly used in high temperature or vacuum conditions, in order to prevent ash pollution of the surrounding environment and products, the ash content is often more stringent requirements. Under special conditions, not only the ash content is required, but also the components in ash are required. Many properties of carbon graphite materials are related to the degree of graphitization. The higher the graphitization degree, the better the conductivity and thermal conductivity, the higher the thermal stability, oxidation resistance, corrosion resistance and lubricity. The degree of graphitization is closely related to the ash content and is generally determined by the highest temperature of graphitization. That is to say, under the same process conditions, the higher the graphitization temperature, the lower the ash content and the higher graphitization degree. The application scope and isostatic graphite more widely, the use conditions are different, the graphite material requirements, will therefore not have focused on a variety of the world, maintaining the status quo, development of varieties is a pressing matter of the moment. The carbon graphite material under vacuum or protective medium, can work stably, the highest up to 3000 DEG C. But in reality, there are many occasions, requiring it to work in the air, high temperature conditions, such as continuous casting graphite, purification aluminum electrode. We know that the biggest defect of carbon graphite material is high temperature oxidation. In order to improve service life, One is to improve the oxidation resistance of carbon matrix, The second is to prevent oxidation, such as surface coating, plasma spraying, chemical vapor deposition, solid phase impregnation, etc.. Carbon graphite material under high temperature use conditions, undergo high temperature changes and not destroyed by the performance, known as thermal shock resistance, or referred to as thermal stability. Carbon graphite is a better material, but it also has some limitations. (4) product specifications need to be improved As mentioned earlier, with the rapid development of science and technology, the size of equal pressure static graphite also requires large scale development. The cylinder diameter of isostatic pressing machine by a few years ago with the diameter of 850 mm in recent years to the development of home purchase cylinder with the diameter of 1250 mm (maximum 2150 mm) isostatic pressing machine, the manufacturing of diameter 1000mm and larger specifications may become isostatic graphite. Products to large specifications, in addition to hardware (such as static press, baking furnace, etc.), the biggest bottleneck is the manufacturing process, to prevent product cracking is the key to baking, worthy of in-depth study of peers.

　　High purity graphite refers to the carbon content of >99.99% graphite, widely used in metallurgical industry of high-grade refractory materials and coatings, military industrial explosive materials stabilizer, light industry, electrical industry pencil brush, industrial battery electrode, additives and catalyst in chemical fertilizer industry.

　　Introduction to high purity graphite

　　Performance: the flake is of crystalline integrity, thin and good toughness, excellent physical and chemical properties, good thermal conductivity, temperature resistance, self lubrication, conductivity, thermal shock resistance, corrosion resistance and so on.

　　Description: high pure graphite (also known as: flake high thermal conductivity toner) has the advantages of high strength, good thermal shock resistance, high temperature resistance, oxidation resistance, resistance coefficient, corrosion resistance, easy machining and other advantages, is the ideal inorganic non-metallic materials. For the manufacture of electric heating elements, the structure of die casting, high pure metal smelting crucible boat, crystal furnace heater, EDM graphite, sintering mold, tube anode, metal coating, semiconductor technology with graphite crucible, electron tube, thyratron and mercury arc rectifier with graphite anode, grid etc..

　　The characteristics and application of high pure graphite with high strength, high density, high purity, high chemical stability, high temperature resistance, compact and uniform structure, high conductivity, good wear resistance, self lubrication and easy processing characteristics, widely used in metallurgy, chemical, aerospace, electronics, machinery, nuclear power and other industrial areas. In particular, high purity graphite with large size and high quality, as an alternative material, has a wide application space in high-tech and new technology fields, and has broad application prospects. [1]

　　Purification method

　　They are divided into two categories: one is wet purification, including flotation, acid-base and hydrofluoric acid; two is the purification by fire, including roasting by chlorination and high temperature.

　　High purity graphite applications

　　Widely used in metallurgical industry of high-grade refractory materials and coatings, military industrial explosive materials stabilizer, light industry, electrical industry pencil brush, industrial battery electrode, additives and catalyst in chemical fertilizer industry. High purity graphite after processing, and production of graphite, graphite sealing material and composite material, graphite products, graphite antifriction additives and other high-tech products, various industrial sectors become important non-metallic mineral raw materials.

　　Graphite sheet is a new kind of heat conduction and heat dissipation material. It can transmit heat evenly in two directions. It can shield the heat source and components and improve the performance of consumer electronic products.

　　With the acceleration of the upgrading of electronic products and the growing demand for thermal management of mini, high integration and high performance electronic equipment.

　　This new solution of natural graphite, high radiation efficiency, small space occupation, light weight, uniform heat conduction along two directions, eliminate the "hot spots", performance of shielding heat sources and components and improvement of consumer electronic products.

　　Heat dissipation principle of graphite sheet:

　　A typical thermal management system consists of an external cooling device, a radiator, and a thermal cross section.

　　The important function of the fins is to create the most effective surface area on which the heat is transferred and the external cooling medium is removed. The graphite heat sink is used to distribute heat evenly over the two-dimensional surface, which effectively transfers the heat and ensures that the component operates at the temperature under which it is applied.

　　Features: the surface can be combined with metal, plastic, self-adhesive and other materials to meet more design functions and needs.

　　Excellent thermal conductivity: 150 ~ 1200W/m.k, better than metal heat conduction.

　　Light quality, only 1 to 1.3 of the proportion of soft, easy to operate.

　　Low thermal resistance. Black color. The thickness of the graphite sheet: 0.012-1.0mm glue: 0.03 mm ultrathin 0.012MM

　　Thermal conductivity; planar conduction; 300-1200W/m.k; vertical conduction; 20-30 W/m.k

　　Temperature resistance 400 DEG C

　　Low thermal resistance: thermal resistance is 40% lower than aluminum, 20% lower than copper

　　Light: 25% lighter than aluminum, 75% lighter than copper

　　High thermal conductivity: graphite heat sink can be smoothly attached to any flat and curved surface, and can be cut in any form according to the needs of customers.

　　Graphite flake main use:

　　Applied to notebook computers, high-power LED lighting, flat panel display, digital cameras, mobile phones and personal assistant equipment, etc..

　　Graphite cloth is a kind of antifriction material developed in China on the basis of foreign samples on 90s, because of the widespread use of sander. It is also called carbon cloth abroad, and is also called Graphite Ribbon and graphite band in china.

　　Alias

　　Graphite lubricating belt.

　　brief introduction

　　graphene nanoribbon

　　Graphite cloth is a kind of antifriction material developed in China on the basis of foreign samples on 90s, because of the widespread use of sander. It is also called carbon cloth abroad, and is also called Graphite Ribbon and graphite band in china.

　　Graphite cloth is a simple process, manual production began, after years of research and development has become a clear classification, application of mature products, at present, can replace foreign products, and have been exported abroad.

　　classification

　　Graphite cloth, as a solid lubricating material, with blankets and temperature resistant foam pad applied to the sanding machine, to reduce friction between the steel plate and the belt sander sanding belt protection, improve the quality of.

　　Can be divided into: GC and HD, ultra-thin, backing, self-adhesive type.

　　Type GC and type HD

　　GC graphite cloth Graphite, Coated, Canvas - Standard, Type (GC) is the main raw material using 99.99% natural flake graphite. Flake graphite is dipped in coated liquid glue (which makes it easier to immerse graphite scale after heating), enters water, solidifies, dries, and finally cuts into customer size. GC graphite cloth has high lubricity, and is suitable for all kinds of light ordinary sanding machines.

　　The characteristics of GC type of stone Mobu:

　　In the selection of graphite, GC graphite cloth all use lubricating best natural flake graphite, with flexible glue, made into a flexible graphite coating and lubrication, good cheap, can apply to various sanding machine, compared with heavy graphite cloth, only used in the heavy sanding machine, because heat resistance is weak, so life is short.

　　HD type

　　HD graphite cloth Graphite, Coated, Canvas - Heavy, Duty (HD) is the main raw material using solid graphite particles and 99.99% natural flake graphite. First, the adhesive is applied on the base cloth, and the graphite particles are permeated into the adhesive by extrusion to dry. The final cut is made to the size required by the customer. HD graphite cloth has a strong abrasion resistance, and high temperature resistance, long service life, suitable for sanding, particleboard, MDF heavy sanding machine.

　　The friction coefficient of HD graphite cloth is GC type graphite cloth, therefore, does not recommend the use of ordinary sand machine type HD graphite cloth.

　　The characteristics of HD type of stone Mobu:

　　In the selection of graphite materials, using the technology of flake graphite and graphite particle composite, graphite particles due to expensive and complex production process is difficult, so the cost is high, the high price of the HD graphite cloth, HD graphite cloth in the production process, the use of high temperature resistance and higher bonding strength of glue, therefore, this type of the product is especially suitable for heavy sanding machine, also can be applied to other kinds of sanding machine.

　　Ultra-thin

　　Ultra-thin stone Mobu is mainly applied to the requirements of sanding surface finish.

　　Backing adhesive type

　　Backing adhesive is mainly used in simple flat sander.

　　Graphite carbon plate is made of high-quality graphite carbon material, and organic compound with strong acid resistance is added. After high pressure molding, vacuum impregnation and high temperature heat treatment

　　The process is refined and has excellent acid resistance and temperature resistance. It is an ideal lining material for phosphoric acid reaction tank and phosphoric acid storage tank in chemical industry.

　　Excellent corrosion resistance

　　Products using carbon graphite material quality, adding organic compound with strong acid, effectively reducing the product porosity increases, the bulk density of the products, so the product has strong corrosion resistance and excellent wear resistance.

　　Stable performance, strong durability

　　The product adopts high strength organic adhesive as binder and introduces high and new technology additive, so the product has strong strength, good abrasion resistance, very stable structure, and the structure of product does not change with the change of temperature.

　　Accurate size

　　It adopts pressing molding, the quality of the product is good, the dimension of the product is accurate, and the special product can be produced according to the requirements of the user, and the requirements of the masonry process can be fully satisfied.

　　The graphite carbon plate has the characteristics of wear resistance, temperature resistance, pressure resistance, corrosion resistance, creep resistance, no oil self lubrication, small expansion coefficient, superior sealing performance, etc..

　　Use: pump, valve, fan, compressor, mixer, reactor, hydraulic pneumatic, electrical components, glass instrument, rotary joint, mechanical seal, pipe flange, petrochemical equipment, drying equipment, finishing equipment, chemical equipment, chemical machinery, rubber machinery, food machinery, machinery, machinery and other rotating fluid separation and the sealing member.

　　The graphite material can be divided into coarse grain structure, fine grain structure and fine grain structure from the structure , distinguished from molding method, it mainly can be divided into vibration molding graphite ,extruded molding graphite , molded graphite and isostatic pressing graphite.

　　As all we known , the molded graphite material with high purity, low ash content , its carbon content is over 99.9%, it is a good choice of making crucible and other high quality products.at the same time, it has low ash,high thermal stability and high thermal conductive.It could be used in arc furnace as heat element. The using life is longer than the metal. And it has good oxidation resistance. It is easy to install and reduce the cost. Our graphite block also could used as raw material. It could be make crucible,mould and other graphite products.

　　The advantages of the graphite material:Fine grain,the grain size of our isostatic graphite material can be several micron; Homogeneous structure; High density; Excellent thermal conductivity; High mechanical strength; Proper electrical conductivity; Minimum wettability to molten metals; Grain size, ash content, bulk density, electrical resistivity, bending strength, compressive strength, all can be customized.

　　The application of the our graphite materials:Molds, chutes, sleeves, sheathes, linings, etc; in continuous casting systems for making shaped steel, cast iron, copper, aluminum; Sintering molds for cemented carbides and diamond tools; Sintering molds for electronic components; Electrodes for EDM; Heaters, heat shields, crucibles, boats in some industrial furnaces (such as furnaces for pulling monocrystalline silicon or optical fibers); Bearings and seals in pumps, turbines and motors.

　　Our company can provide all kinds of the graphite materials which are in different applications.please feel free to contact us if you are interested in any of our products or would like to discuss a custom order. We are looking forward to forming successful business relationships with new clients around the world in the near future.

　　All countries in the world attach great importance to carrying out basic research on graphene and actively develop related industries. The study of graphene into 2008-2014 years earlier, total investment has exceeded 50 million US dollars; Singapore study of graphene, invested more than $150 million; South Korea plans to invest $350 million to carry out the study of graphene and the development of the business development, a detailed roadmap; the European Union early in 2013 started the "graphene flagship project". And the 10 year plan to invest 1 billion euros for research and development, industrialization and application of graphene to explore, to maximize the promotion of technological innovation. In addition, the EU has laid graphene based energy storage and conversion of graphene as one of the next four important research directions.

　　China's research on graphene is also very active, has formed a government, research institutions and enterprises collaborative innovation research cooperation docking mechanism, greatly promoting the graphene technology research. The 2015 introduction of the "2025" key areas China manufacturing technology roadmap "has been included in one of the graphene in 13th Five-Year" focus on the development of new materials, clearly pointed out the future direction and path of the development of graphene industry for 10 years, and the development of the industry scale reached tons of goals, put forward new material "package" action and breakthrough graphenemonolayer "one-stop" application program.

　　In 2016 the national key research project "nanotechnology" special focus on graphene will approved two graphene related special focus: macroscopic graphene bulk materials controllable preparation and its application in optoelectronic and other aspects of the key technologies of industrial carbon nano materials and science. All these measures listed graphene as an advanced basic material, key strategic materials and cutting-edge new materials.

　　Graphene project will continue to increase in China in graphene research in the field of original exploration and forward-looking technology research and development efforts, and strive to strengthen the basic and key technology accumulation, industrial transformation, transformation of the timely implementation of the important application of the results, the gradual expansion of graphene materials application.

　　It is worth noting that the scientific community and industry agree that graphene will first achieve industrial applications in energy storage devices. Believe that in the next 10 years, by building a number of graphene industry chain and set up a number of industrial agglomeration areas, more and more graphene products will continue to flow in the market.

　　From the current market products, in energy storage, graphene mainly used as conductive additives in lithium ion battery electrode material and heat material, enhance the fast charging battery fast performance, cycle stability and safety performance. In the field of supercapacitors, graphene has the appropriate technical reserves, but the cost is much higher than activated carbon is a major obstacle.

　　In order to meet the requirements of long life electronic devices need to be developed, high energy density, high power density, long cycle life of super capacitor, the need of the development of advanced preparation technology of synthesis of multi-level, the pore structure of graphene materials, and introducing more electrochemical active sites, improve the graphene stacking density, reduce ion the transmission distance, so as to obtain high performance electrode material.