How to extend the service life of breathable bricks?

The main damage method of air-permeable bricks is thermal shock damage. With the continuous increase of the tapping temperature, there is a large temperature difference between working and intermittent work on the working surface of the ventilating brick, which requires the material to have high thermal shock resistance. The spinel phase is introduced into the castable, and the thermal shock resistance of the air-permeable brick will be improved.

The oxide or non-oxide added in the ventilated brick forms a solid solution phase with the aggregate at high temperature, increases the high-temperature strength of the brick, improves the permeability of the brick, and resists the erosion of the ventilated brick by the molten slag in the ladle. After the high temperature heat treatment of the air-permeable brick, its performance is improved to meet its use requirements.

Our company develops and produces impermeable ladle bottom argon-blowing slit-type ventilating bricks. Because there is less or no cleaning during use, manual intervention is reduced, which can effectively reduce the abnormal melting loss of ventilated bricks caused by oxygen burning and purging. . Due to its scientific and reasonable formula, it can effectively reduce the loss of breathable bricks caused by thermal stress, mechanical abrasion and chemical erosion. Through personalized customization on the customer site, it can meet the different on-site process requirements of different customers, effectively extend the service life of the ventilating brick, reduce customer costs, and increase customer profits.