When constructing corundum silicon carbide composite bricks, they must be constructed with refractory cement , that is, corundum silicon carbide refractory clay, because refractory clay of the same material has the same performance, and under the same high temperature or erosion, Can withstand the same furnace atmosphere.
1. There are many kinds of corundum silicon carbide composite refractory bricks
There are also many kinds of corundum silicon carbide composite bricks, including prefabricated bricks and sintered corundum silicon carbide bricks. If they are prefabricated bricks, there is no need to use fire mud, because prefabricated bricks are generally very small in quantity and are based on special parts. It is cast in a special brick type and does not require refractory mud for masonry.
Sintered corundum silicon carbide composite firebricks are sintered at high temperatures and are generally used in areas with high furnace lining temperatures and severe corrosion and wear. The required quantity is larger than that of prefabricated bricks. Therefore, fire mud of the same material must be used for masonry. Refractory cement is used as a bonding material to bond the gaps between bricks.
2. What will happen to refractory mud under high temperature conditions?
When making corundum silicon carbide refractory mud, the amount of silicon carbide added to the corundum silicon carbide composite brick should be considered. Generally, the proportion of silicon carbide powder added to the refractory bricks is the same proportion of powder added to the refractory mud. In this way, the performance is basically the same under the same material. If the silicon carbide is added too much, the bonding condition will not be good during construction, and construction will not be possible. If you forcibly add a binding agent to adjust, the later use intensity will be affected. If silicon carbide is not added in the same proportion, or refractory mud without silicon carbide is used for masonry, the refractory mud will dry out and fall off at high temperatures. If it falls, the brick layer during construction will settle, causing the furnace to shut down. Maintenance delays production.
3. Equipped with corundum silicon carbide refractory cement
Therefore, corundum silicon carbide composite bricks must be constructed with corundum silicon carbide refractory mud. In this way, the materials are the same, the atmosphere is the same, the temperature used and the corrosion resistance and wear resistance are the same.
