Rotary ventilating brick, intermediate frequency furnace ventilating brick

product description:

Breathable bricks are our company’s leading high-tech products. The material is chromium corundum or corundum-spinel, and the brick type is a directional slit type. After the product is formed, it is made by advanced technology such as special curing and high-temperature firing. It has the characteristics of high stability, high repeated blowing rate, long life, large air permeability, etc. It is the preferred structure for bottom blowing argon in ordinary ladle, LF, LF-VD, VOD, CAS-OB and other equipment, and is ideal for replacing imports. product.

The product has the characteristics of stable structure, large air permeability, high blowing rate, erosion resistance, erosion resistance, and long life. Conducive to purifying molten steel, uniform composition and temperature, suitable for refining furnaces for long-term treatment or special treatment of molten steel.

The breathable bricks produced by our company have always been of stable quality and complete varieties. It can be produced according to user requirements, and can provide matching supply of related refractory materials such as set bricks, seat bricks, and joint materials. At the same time, it can design and select breathable brick products for users to ensure the smooth implementation of the bottom argon process.

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 cleaning or no cleaning during use, manual intervention is reduced, which can effectively reduce the abnormal melting loss of ventilating 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.