Tuesday, 22 August 2017 20:45

The graphite blocks

  Graphite Blocks are widely used in the Tooling (EDM), Mould making (EDM), and General Manufacturing industries. We can make it up to 3600mm long and 850 wide and 850 tall. The blocks are available in various specifications and size are as per different construction applications. Characteristics of Graphite Blocks. Graphite Blocks features in high bulk density, low resistivity, oxidation resistance, corrosion resistance, high temperature resistance and good electrical conductivity, etc.

  Graphite blocks is the widely used graphite material and be used in many industies , from the material it can be divied into carbon blocks and graphite blocks , the difference is if the blocks is with the procedure of the graphitization . and for the graphite blocks , from the moulding method , it can be divided into three major kinds , isostatic graphite blocks , moulded graphite blocks and vibracation graphite blocks .

  Special features: High purity, fine grain, good performance of electrical conductivity and thermal conductivity, high density, good corrosion resistance, thermal shock resistance, thermal stability, high mechanical strength, low permeability, and good oxidation resistance

  The raw material is capable of producing various semiconductor molds and radio tube

  Graphite blocks used for silicon carbide furnace, graphitization furnace and other metallurgical furnace, resistance furnace lining and conductive material, and the permeability of graphite heat exchangers.Widely used in electronics, metallurgy, chemical industry, steel and other fields, products of good quality, stable performance.

Published in News

  As the graphite block materials with thermal expansion coefficient is low, good resistance to thermal shock, neutron activation properties such as excellent performance, nuclear reactor (especially in high temperature gas cooled reactor) indispensable moderated, reflection and construction materials.

  In order to use the safety, the nuclear reactor needs to be compact and uniform. Graphite although has the good performance of nuclear reaction, however, the ideal graphite crystal is the structure of two-dimensional sheet, carbon level direction strength greatly, and interlayer only weak intermolecular bonding combined showed obvious anisotropy. Therefore, the properties of the material can be adjusted by making isotropic graphite or by the method of the composite material.

  As an important material in the construction of nuclear power plants, the development and development of nuclear graphite is the key to the construction of nuclear power plants.

  Nuclear graphite is mainly the isotropic graphite manufacturing process, according to the experience of Britain, France, Germany and other countries study that can by pressing and vibration molding process technology for preparing isotropic graphite materials and nuclear graphite block.

  At present, the isotropic carbon material is mainly through the use of hot isostatic pressing technology, vibration molding technology preparation. Among them, it is representative of the two focus technology and vibration molding technology.

  Nuclear graphite can be used to make thermal structural parts, such as: supporting column, hot gas pipe, fuel element, etc.. Isotropic graphite materials are mainly used for the production of graphite balls, core materials, electrodes and other nuclear graphite products.

  According to the habit and the structure of graphite materials, used in nuclear reactors of isotropic graphite raw material selection, by selecting the hard structure of carbon materials, reduce anisotropy of graphite, improve the isotropy of nuclear graphite products, manufacturing isotropic nuclear graphite.

Published in News

  Under normal temperature and pressure, the phenolic resin impregnated carbon graphite block material can increase the weight gain rate, open porosity, hardness and bending strength of the basic performance, and through the muffle furnace and thermogravimetry analysis of its thermal stability.

  Phenolic resin impregnated graphite block has a better thermal stability from 0 to 450 centigrade, when the impregnated graphite is decomposed and the thermal stability is poor at more than 450 centigrade.

  The mechanical properties of graphite, easy to crack, fragile, limiting its use, phenolic resin has the characteristics of high thermal stability, integrity and solvent resistance and it a good binder reduce the porosity and improve the mechanical properties of graphite, and phenolic resin impregnated graphite block has become one of the most popular types of graphite chemical equipment.

  Impregnated graphite open porosity in the curing condition of 160 DEG C low, far lower than not the curing process of graphite, in the curing condition of 140 DEG C, open porosity is also improved, and in the curing condition of 180 DEG C, higher opening ratio that the curing temperature is too high, did not achieve the expected results. The flexural strength of the cured impregnated graphite and shore hardness than the performance of the original graphite has significantly improved, curing of 160 DEG C under the shore hardness of the highest, reaching 90, the flexural strength compared to the original graphite doubled, reaching 43Mpa.

  The impregnated graphite sample after curing the weight gain rate, bending strength and hardness are improved, open porosity has been effectively reduced. The basic properties of optimal impregnated graphite obtained at 160 DEG C under the curing condition.

  Under the condition of 160 degrees C, the impregnated graphite sample of the phenolic resin impregnated graphite has a high rate of impregnation and weight gain, which is 3.8%,and the basic physical properties of phenolic resin impregnated graphite sample were the best under the condition of 160 degree centigrade(open porosity, flexural strength and shore hardness).

Published in News

  Graphite blocks is the widely used graphite material and be used in many industies , from the material it can be divied into carbon blocks and graphite blocks , the difference is if the blocks is with the procedure of the graphitization . and for the graphite blocks , from the moulding method , it can be divided into three major kinds , isostatic graphite blocks , moulded graphite blocks and vibracation graphite blocks .

  Graphite Blocks are widely used in the Tooling (EDM), Mould making (EDM), and General Manufacturing industries. We can make it up to 3600mm long and 850 wide and 850 tall. The blocks are available in various specifications and size are as per different construction applications. Characteristics of Graphite Blocks. Graphite Blocks features in high bulk density, low resistivity, oxidation resistance, corrosion resistance, high temperature resistance and good electrical conductivity, etc.

Special features:

  • High purity
  • fine grain
  • good performance of electrical conductivity and thermal conductivity
  • high density, good corrosion resistance, thermal shock resistance
  • thermal stability
  • high mechanical strength
  • low permeability and good oxidation resistance

  The raw material is capable of producing various semiconductor molds and radio tube.

  Graphite blocks used for silicon carbide furnace, graphitization furnace and other metallurgical furnace, resistance furnace lining and conductive material, and the permeability of graphite heat exchangers.Widely used in electronics, metallurgy, chemical industry, steel and other fields, products of good quality, stable performance.

Published in News
Thursday, 25 June 2015 10:19

The use of graphite blocks

  Graphite blocks is the widely used graphite material and be used in many industies , from the material it can be divied into carbon blocks and graphite blocks , the difference is if the blocks is with the procedure of the graphitization . and for the graphite blocks , from the moulding method , it can be divided into three major kinds , isostatic graphite blocks , moulded graphite blocks and vibracation graphite blocks .

  Graphite Blocks are widely used in the Tooling (EDM), Mould making (EDM), and General Manufacturing industries. We can make it up to 3600mm long and 850 wide and 850 tall. The blocks are available in various specifications and size are as per different construction applications. Characteristics of Graphite Blocks. Graphite Blocks features in high bulk density, low resistivity, oxidation resistance, corrosion resistance, high temperature resistance and good electrical conductivity, etc.

  Special features: High purity, fine grain, good performance of electrical conductivity and thermal conductivity, high density, good corrosion resistance, thermal shock resistance, thermal stability, high mechanical strength, low permeability, and good oxidation resistance

  The raw material is capable of producing various semiconductor molds and radio tube.

  Graphite blocks used for silicon carbide furnace, graphitization furnace and other metallurgical furnace, resistance furnace lining and conductive material, and the permeability of graphite heat exchangers.Widely used in electronics, metallurgy, chemical industry, steel and other fields, products of good quality, stable performance.

  If you need graphite or carbon products , We interested in supplying those materials for you.As a leading Chinese graphite manufacturer and supplier, we specialize in providing high quality graphite material, carbon carbon composites and graphite parts.To buy graphite and carbon products please contact us and ask our sales manager for a quote.

Published in News