The production procession point of silica brick

The technological process of silica brick is generally similar to technological process of clay bricks. The difference is that the former increased the lime and the preparation system of

mineralizer.

1. The choice of particle composition

When siliceous heated, its loose body and sintering ability depends on the nature and quantity of the two kinds of particle about thickness of particle composition.

The critical particle size of silica brick generally in 2 ~ 3mm is suitable

2. The molding
 
The silica brick molding is reflected in silica brick billet molding characteristics and the big difference in complex shape and quality , etc.

Siliceous billet formability affected by the composition of particles, water and the influence of the addition. Adjusting these factors can improve the formability of billet. For any of billet,

increasing the molding pressure can improve the density of silica brick. In order to ensure that made the dense tile, the molding pressure shall be not less than 100 ~ 150 mpa.
 


3. Burning

Silica brick phase change in the sintering process, and has a large volume change. The burning system of silica brick and brick in burning process occurred a series of physical and

chemical change, add to the number and nature, the shape of the blank size and the characteristics of calcining kiln, etc