Carbon block has the properties of superior electric and thermal conductivity; better chemical stability; better bulk stability, as well as high strength in high temperature. It is widely used as refractory materials in the blast furnace, the ferroalloy furnace, the calcium carbide furnace, and the aluminum electrolyte tank. The main products include normal cathode blocks for the submerged-arc furnace and the blast furnace.
Properties of Cathode Block for Aluminum Electrolysis
项目 Items | 单位 Unit | 指标 Index |
TKL-1 | TKL-2 | TKL-3 |
灰份 ≯ Ash Content | % | 8 | 10 | 12 |
抗压强度 ≮ Compressive Strength | Mpa | 30 | 30 | 30 |
体积密度 ≮ Bulk Density | g/cm3 | 1.54 | 1.52 | 1.52 |
电阻率 ≯ Specific Resistance | μΩm | 55 | 60 | 60 |
破损系数 ≯ Breakage |
| 1.5 | 1.5 | 1.5 |
真密度 ≮ Real Density | g/cm3 | 1.88 | 1.86 | 1.84 |
Properties of Carbon Block for Blast Furnace
项目 Items | 单位 Unit | 指标 Index |
炭块 Carbon Block |
灰分 ≯ Ash Content | % | 8 |
抗压强度 ≮ Compressive Strength | Mpa | 35 |
气孔率 ≯ Porosity | % | 20 |
体积密度 ≮ Bulk Density | g/cm3 | 1.50 |
耐碱性 ≮ Anti-alkalescence | grade | LC |
抗折强度 ≮ Bending Strength | Mpa | — |
Note: ① Thermal conductivity and porosity are only for reference.
② Thermal conductivity （800℃、400℃、200℃）and porosity will be supplied to the user when produce all blocks for the whole blast furnace.
Properties of Carbon Block for Submerging-arc Furnace
项目 Items | 单位 Unit | 电炉炭块 Carbon Block for electric furnace |
灰分 Ash Content ≯ | % | 8 |
抗压强度 Compressive Strength ≮ | Mpa | 30 |
气孔率 Porosity ≯ | % | 25 |
体积密度 Bulk Density ≮ | g/cm3 | — |
耐碱性 Anti-alkalescence ≮ | grade | — |
