Some Casting Methods of Corundum Brick
Corundum brick is fired under the situation of high temperatures to make a matrix with mullite, mullite-corundum or corundum which has excellent bulk stability and good chemical stability. corundum refractory brick is mainly used for linings of gasifier, carbon black reactor, gas-making furnace, aminolysis oven, secondary reformer in the field of petrochemical industry, super high temperature kiln in the field of refractory ceramic industry and high blast furnace in the field of metallurgy industry. There is some casting methods of corundum brick, let us realize more about corundum refractory brick.
No Shrinkage Casting
The shrinkage cavity was concentrated in a certain area. After annealing, it was cut off by diamond saw. Another kind is cutting casting self: from reducing cutting area, the casting pouring into “L” type, the shrinkage cavity in the most concentrated in the “L” small legs, the leg volume accounted for 60% of total volume of castings, the whole casting during annealing has been buried in the thermal insulation material, and keep the tilt to encourage shrinkage cavity to concentrate in the leg.
Inclined Casting
Inclined casting is before casting mold caused an Angle, and put the riser in one end of the mould for casting, such already can get a dense area in T, and can use ordinary mold in the direction of the T get high accuracy. So when you build the wall of the pool with this casting, you can use its height.
Ordinary Casting
The bricks cast in this way are low in price and are often used in the upper structure of the kiln and to clarify the wall of the pond. With ordinary riser casting, casting and root out when hot riser, its section is divided into two parts, first part curing, thin crystal, the area accounted for 40% of the thickness of the casting – 40%, another part after solidification, shrinkage cavity and bulky crystal.
Rs company as a corundum brick manufacturer has over 20 years history in production of refractory materials, which is a member enterprise of China Henan Refractory Industry Association. we have a strong technical force, advanced production process, good machine equipment and complete check methods. If you have any need about corundum brick, can contact us anytime.
