Graphite is a gray black opaque solid with stable chemical properties and corrosion resistance. Chemical formula: C CAS accession No. 7782-42-5 Melting point 1300 ℃ to 3500 ℃ Boiling point 4830 ℃ Density 1.5g/cm --- 2.5g/cm
Graphite is a gray-black, opaque solid with stable chemical properties and corrosion resistance. It is not easy to react with acid, alkali, and other agents.
Graphite has the following special properties due to its special structure:
1) High-temperature resistant type: the melting point of graphite is 3850 ± 50 ℃ and the boiling point is 4250 ℃. Even if it is burned by ultra-high temperature arc, 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. At 2000 ℃, the strength of graphite is doubled.
2) Conductivity and thermal conductivity: the conductivity of graphite is 100 times higher than that of general non-metallic minerals. Thermal conductivity exceeds that of steel, iron, lead, and other metal materials. The thermal conductivity decreases with the increase of temperature. Even at extremely high temperatures, graphite becomes an insulator.
3) Lubricity: the lubrication performance of graphite depends on the size of the graphite scale. The larger the scale, the smaller the friction coefficient, and the better the lubrication performance.
4) Chemical stability: graphite has good chemical stability at room temperature and can resist acid, alkali, and organic solvent corrosion.
5) Plasticity: graphite has good toughness and can be connected into very thin sheets.
6) Thermal shock resistance: when graphite is used at room temperature, it can withstand the drastic change of temperature without damage. When the temperature changes suddenly, the volume of graphite changes little and cracks will not occur.
Micro powder graphite Lubricating oil graphite powder Cast graphite
Type: FS. F specification: particle size 1-38 μ m
Performance: it has oxidation resistance, self-lubrication, and plasticity at high temperatures, and has good conductivity, electrothermal, and adhesion at high temperature.
Parameters:
Graphite powder, with following specifications:
|
|
(%) |
(%) |
(%) |
(ml/g) |
|
32 |
99 |
1 |
1 |
300 |
|
32 |
99 |
1 |
1 |
280 |
|
32 |
85 |
15 |
1 |
150 |
|
50 |
99 |
1 |
1 |
250 |
|
50 |
95 |
5 |
1 |
250 |
|
50 |
85 |
15 |
1 |
250 |
|
50 |
85 |
15 |
1 |
180 |
|
80 |
99 |
1 |
1 |
200 |
|
80 |
95 |
5 |
1 |
200 |
|
80 |
85 |
15 |
1 |
150 |
|
120 |
85 |
15 |
1 |
120 |
|
100 |
85 |
15 |
1 |
100 |
