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Graphite product specification
来源:隆宝山公墓   浏览时间:2014-12-29   浏览次数:3124次

  Graphite product specification

  A variety of product specifications:

  Such as -195 flake graphite refers to the particle size of 100 mesh, with a carbon content of 95%.

  The project is a unit of measurement, mesh is that the raw material particle size 200 mesh sieve size 0.074mm as a benchmark, the larger the number of the mesh, said the finer particles, the better the quality.

  And -195 and +195 in the particles are different

  100 eyes with -100 and +100 eyes, but whether it is positive or negative 100 mesh 100 mesh, the same size (equivalent grain size refers to the -100 mesh products compared to each other, +100 eye products compared to each other), the higher the price of carbon is relatively high;

  Therefore, the size of the same size of the graphite particle size 100, the amount of carbon 98% is higher than the price of carbon 95%, can not simply say 195 to 198 more expensive

  Partition standard of expandable graphite:

  Product grade

  Expandable graphite can be divided into different grades according to its purity and size. According to the size of the purity of ash I, II, III, IV and V five grades.

  Each grade according to ash, moisture, sieve allowance is divided into top grade, grade one, three grades of qualified products.

  Grade by code, particle size, purity grade. Example: KP500- II, KP for the expansion of the Chinese phonetic alphabet,

  500 represents the particle size of 500 m, II, II.

  Classification standard of natural flake graphite:

  Product category, brand

  Product classification

  According to the fixed carbon content, flake graphite is divided into four categories: high pure graphite, high carbon graphite, medium carbon graphite, low carbon graphite. his

  Fixed carbon range and code see table 1.

  Table 1

  : ---- ---- ---- kinds: ----: -

  The name of the high pure graphite, high carbon graphite, graphite carbon, low carbon graphite

  Ten ---- ---- ---- ten ten - ten -

  Fixed carbon (C%), C = 99.9, 94 = C<99.9, 80 = C<94.0, 50 = C<80.0

  Ten ---- ---- ---- ten ten - ten -

  Code / LC / LG / LZ / LD

  ---- the top - the top - the top - the top -

  Dividing standard of graphite electrode:

  Reference standard

  The provisions contained in the following standards are contained in the provisions of this standard by reference in this standard. When this standard is published, it is effective. All standards will be revised, and the parties to the use of this standard shall explore the possibility of using the latest version of the following standards.

  G B / T 1427 -1 988 carbon materials sampling method

  G B / T 1429 -1 985 carbon materials Determination of ash content

  Determination of bending strength of graphite electrodes in B -1 / T 982 G 3074.1

  Determination of elastic modulus of graphite electrode in B T / -1 982 G 3074.2

  Determination of thermal expansion coefficient (T E C) of B -1 / T 3074.4 G 982 graphite electrode

  G B / T 8170 -1 987 rounding

  Method for the determination of Y B / T 119 -1 997 carbon materials volume density

  Method for the determination of Y B / T 120 -1 997 carbon material resistivity

  B T / -1 5212 Y 993 integral graphite electrode elastic modulus test sound velocity method

  The general provisions of Y B / T 8719 -1 997 carbon materials and products, packaging, marking, transport and quality certificates

  carbon carbon composite, graphite, graphite felt http://www.cfccarbon.com/

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