are semi-siliceous bricks produced with pyrophyllite as the main raw material, and their refractoriness is greater than 1700 degree . It has good thermal shock resistance, can withstand the impact of steel slag and metal, and has strong creep resistance.
are a type of acidic refractory material. They have strong resistance to erosion by acidic slag or acidic melt, but poor resistance to erosion by alkaline substances. Moreover, the expansion coefficient of silica bricks is very large. The volume of silica bricks is stable from above 300 degree to close to the melting point. When heated to 1450 degree , it will produce a volume expansion of 1.5% to 2.2%.
HC-Si Briquette 50
are used in large amounts and in many varieties. They are mainly used in the carbonization chamber, combustion chamber and partition walls of coke ovens, as well as the kiln roof and kiln pool of glass tank kilns. The high-temperature load-bearing parts of hot blast furnaces, carbon roasting furnaces and other kilns are also lined with silica bricks. There are many varieties of silica bricks, including silica bricks for coke ovens, silica bricks for hot blast furnaces, silica bricks for electric furnaces, silica bricks for glass kilns, etc.
The use range and dosage of semi-siliceous bricks are not as large as those of silica bricks, and are extremely limited. Although it can be used in ladle bottom linings, hot metal ladle linings and flues, due to the improvement in steel quality requirements, the amount of semi-siliceous bricks is very small.
