Wat zijn de classificaties van korundstenen?

Als hoogwaardig vuurvast materiaal, korundstenen worden veel gebruikt in industriële velden. Dit artikel introduceert de twee hoofdcategorieën korundstenen: gesmolten korundstenen En sintered corundum bricks, and discuss their application scope, characteristics, and production processes.

Introduction to fused corundum bricks

Het productieproces van gesmolten korundbaksteen

Fused corundum bricks are refractory products made from alumina powder through a high-temperature electric fusion process. In the preparation process, the alumina ore is first crushed and ground, then subjected to high-temperature electric fusion in an electric arc furnace, and finally solidified by cooling to form a hard corundum brick.

Characteristics of fused corundum brick

Due to their high density, hoge druksterkte, weerstand op hoge temperatuur, corrosieweerstand, and other characteristics, fused corundum bricks are widely used in the lining and insulation layer of high-temperature industrial equipment such as electrolytic aluminum tanks and glass furnaces.

Introduction to sintered corundum bricks

Production process of sintered corundum bricks

Sintered corundum brick is a refractory product made of alumina powder sintered in a high-temperature environment. During the preparation process, the alumina powder is molded or extruded, and then placed in a high-temperature baking oven for sintering, so that the particles are combined to form a solid brick.

Characteristics of sintered corundum brick

Sintered corundum bricks are widely used in industrial fields such as high-temperature furnaces, steel smelting furnaces, and cement kilns due to their excellent thermal shock stability, slijtvastheid, and impact resistance.

Application scope of corundum refractory brick

Corundum brick is widely used in many industrial fields due to its fire resistance, weerstand op hoge temperatuur, corrosieweerstand, and other properties:

• Metallurgische industrie: used in the lining and heat insulation layer of blast furnaces, elektrische ovens, converters, ladles, and other smelting equipment.
  
• Glas industrie: As the lining of glass furnaces, its high-temperature resistance and corrosion resistance are fully utilized.
  
• Cement industry: In high-temperature areas such as cement kiln linings, it can effectively withstand high temperatures and chemical corrosion.
  
• Ceramic industry: It has good wear resistance on the inner wall, isolatielaag, and other parts of ceramic kilns.