Are there any precautions when using mullite stone?

Time:2017/9/5 11:43:11 Click on:

A kiln furniture made of mullite stone. The main raw material is refractory clay. It has certain thermal conductivity and stability. It is used to fire ceramics to ensure the quality of ceramic products.

1. The mullite columns need to be straight and stable: The columns should be supported with fireproof clips to prevent them from tripping at high temperatures. The pillars in the outer ring must not be skewed toward the kiln wall, but can be slightly skewed towards the center of the kiln.

2. After filling the kiln, seal the kiln door: The kiln door is preferably made of two layers of refractory brick inside and outside, the inner layer should be flush with the inner wall of the kiln wall, the outer layer should be flush with the outer wall of the kiln wall, and each layer must be altered. Fire clay. When laying the door outside the kiln, it is necessary to set aside the fire observation hole. Each time the direction of the fire hole is installed, the direction of the fire hole must be fixed to avoid the sudden change of height and height, which will affect the correct temperature measurement.

3, the height of the mullite column: It should be based on the furnace structure and the temperature of the various parts of the kiln. In general, the mast near the fire mouth should be low to reduce the flame resistance. Although the height of the center pillar can be high, there must be room for satisfaction with the top of the kiln so that the rising flames can gather here and be redistributed into the fire pits of the suction holes.

The mullite stoneware is a type of kiln furniture. The main raw material is refractory clay, which has certain thermal conductivity and stability. It is used to fire ceramics to ensure the quality of ceramic products.

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