In China, the production process of white fused alumina is mature (the smelting method currently used in China has the fixed furnace and the tilting furnace smelting method), the production cost of the fixed furnace is lower than tilting furnace. Especially in the current domestic and international fixed abrasives, coated abrasives manufacturing and refractory production play an important role.
The fixed smelting technology was first introduced in China. The tilting method was only developed in the last two decades. Relatively speaking, the tilting furnace has high production efficiency and low energy consumption. In terms of chemical composition, the tilting furnace contains lower silica, and the price of the corundum product is slightly higher.
Although the chemical composition difference between the fixed furnace and the tilting furnace corundum is extremely small, there are large differences in crystallization rate and crystal size due to the difference in the smelting process, and the price is different too.
