Henan Rongsheng Xinwei New Materials Research Institute Co., Ltd
High Quality Industrial Refractory Material Manufacturer And Supplier
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Description of Alumina Magnesia Carbon Bricks With 55%-75% Alumina Content Are Used in Electric Arc Furnaces And Converters
The magnesia-carbon bricks produced by our company use high-purity, high-density fused magnesia, large crystal magnesia, and high-purity flake graphite as the main raw materials, add an appropriate amount of antioxidants, and use phenolic resin as a binder. to make. The series of alumina-magnesia-carbon bricks produced are mainly made of corundum, super-high alumina bauxite, fused magnesia and high-purity flake graphite, with phenolic resin as a binder, and are produced by high-pressure forming and low-temperature baking processes. It has good thermal strength and slag resistance, and is suitable for the wall and bottom of small and medium ladles.
Parameters of Magnesia Carbon Brick:
| Item | Index | ||||
| LMT75 | LMT70 | LMT65 | LMT60 | LMT55 | |
| Al2O3 % | ≥75 | ≥70 | ≥65 | ≥60 | ≥55 |
| Al2O3+MgO % | ≥81 | ≥77 | ≥80 | ≥75 | ≥72 |
| C % | ≥5 | ≥5 | ≥7 | ≥7 | ≥8 |
| Apparent porosity % | ≤7 | ≤7 | ≤7 | ≤7 | ≤7 |
| Bulk density g/cm3 | ≥3.2 | ≥3.15 | ≥3.1 | ≥3.0 | ≥2.9 |
| Cold Crushing Strength MPa | ≥60 | ≥60 | ≥60 | ≥50 | ≥50 |