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Flexible graphite is a soft sheet form of compressed natural graphite made from exfoliated mineral flake(crystalline) graphite. Due to its flexible texture, it is referred to as flexible graphite to distinguish it from other forms of graphite materials: flake graphite, amorphous graphite, artificial graphite (hard graphite), graphite electrodes, graphite/carbon fiber, etc. Sometimes flexible graphite is also referred to by a manufacturer's brand name like grafoil. Flexible graphite sheet is made with pure expanded graphite. standard flexible graphite sheet product has a high purity of 99.0% carbon content. Higher carbon content gives the flexible graphite foil better chemical resistance, better thermal conductivity, and better sealing ability. Standard flexible graphite sheet product suitable for most industry applications. As gasket material, it is…
The graphite is made of natural flake graphite,after oxide intercalation, the thermal expansion, compression molding. Graphite sheet is one kind of flexible graphite,and it’s invented in 1963. after that,it’s widely used in The United Kingdom,German,Franch and Japan. The natural flake graphite is rich in China,and it’s our advantage to do the research and development on the graphite sheet. The production method of graphite sheet: Graphite is belong to the hexagonal crystal system,and it has a laminated structure,the Interlayer bonding force is very weak,so we could insert some Molecules and atoms into the interlamination by oxidation,and intermetallic compounds is formed, meanwhile expanding the spacing of layers at this step.then heat to about 1000℃ instantly after water scrubbing the compounds,the compounds between…
The crucible made of graphite material is called graphite crucible.It has a long history to use the graphite crucible.At first the graphite crucible consists of natural graphite (flake graphite and amorphous graphite) and clay,sand,using the pottery manufacturing process to produce.it used to melt metal(copper,iron,steel etc.) The graphite has a high mechanical strength, refractoriness, Thermal conductivity,could withstand repeated smelting and Erosion of high temperature solution.with the development of modern industry, the development of metal casting in electric furnace makes the natural graphite limited. Since the advent of artificial graphite by the end of nineteenth Century,the artificial graphite crucibles are widely used. High purity fine structure graphite,high strength graphite,glassy carbon material broaden the application range of graphite crucible.the graphite crucibles start to…
