Customer in Columbia ordered 128 tons refractory fire silica bricks
In November. 128 tons refractory fire silica bricks are packed for delivering to customer in Columbia. High quality refractory fire brick in Topower Refractory.
Silica brick is a refractory product with a SIO2 content of more than 92%. The higher the SiO2 content in the silicon material, the higher the fire resistance of the product, and the strong ability to resist acid resistance.
Silica brick is a semi -silicon brick produced by leaf wax stones as the main raw material, which is greater than 1700 ° C. The heat shock resistance is good, it can withstand the impact of steel residue and metal, and has a strong ability to resist.
Silica bricks are a variety in acidic refractory materials. They have a strong ability to resist acid residue or acid melting liquid erosion. They have poor resistance to alkaline substance erosion, and the expansion coefficient of silicon bricks is very large. The volume of the range of silicon bricks above 300 ° C to close to the melting point is stable. When heating to 1450 ° C, 1.5%to 2.2%of volume expansion will be generated. The biggest disadvantage of silica bricks is that the heat shock resistance is poor, and the fire resistance is not high (generally 1690 ~ 1730 ° C), and its application scope is limited.
Silica brick made of wax stones. Micro expansion will occur. Because the minerals of the wax stones are heated, the crystal structure in the crystal structure changes small in size, so it shrinks when baking, and sometimes it will swell slightly. During the use of high -temperature use, the leaf wax and acid slag reaction will form a layer of viscosity with large viscosity on the surface of the semi -silicon brick to prevent acid slag from penetrating into the brick. The ability to erode is also quite good.
The amount of silica bricks is large and there are many varieties. It is mainly used in the carbonization room, combustion room and partition wall of the coke oven, and the kiln top and kiln pool of the glass pond kiln. There are also kiln of high temperature load -bearing parts, carbon roasting furnaces such as hot air furnace, and carbon roasted furnaces. There are many varieties of silica bricks. They are divided into coke furnaces, silicon bricks for hot air stoves, silicon bricks for electric furnaces, and silicon tiles for glass kiln.
The range and amount of semi -silica bricks do not have a large amount of silicon brick, which is extremely restricted. Although it can be used in the bottom lining of the steel bag, the inside of the iron water bag, and the flue, the amount of semi -silica brick is small.
