1. True density: refers to the mass of the substance per unit volume excluding pores, and the commonly used determination method is the solvent replacement method, and other methods include gas displacement method and X-ray diffraction method.
2. Density: that is, bulk density.
3. Porosity: There are three types: closed holes, open holes, and through holes.
4. Mechanical strength: compressive strength, tensile strength, flexural strength.
5. Modulus of elasticity: In the range of elastic deformation, the ratio of stress and strain is called modulus of elasticity.
6. Resistivity: influencing factors:
(1) Material, (2) Final heat treatment temperature of the product, (3) Density of the product, (4) Resistivity and test temperature, (5) Anisotropy of resistivity of graphite product.
7. Thermal conductivity: that is, the heat transferred by the data sample per unit area per unit time under the unit temperature gradient.
8. Thermal expansion coefficient: that is, the measurement of the degree of expansion of the data after heating.
9. Thermal shock resistance: that is, thermal stability.
10. Antioxidant properties
All kinds of carbon and graphite products have a certain size and shape after molding, but the raw products after molding have a certain degree of deformation or bending, bump or loss of corners through roasting and graphitization, and the appearance is also stained with some filler or insulation material and appears rough and uneven, and can not be used without the mechanical processing of the certain method.