Corundum brick has high refractoriness under load, good chemical stability, strong resistance to acidic or alkaline slag, โลหะ, และของเหลวแก้ว, ฯลฯ, and has a dense structure.

Parameter of corundum bricks
รายการ | ดัชนี |
อัล2โอ3 % | ≥99 |
SIO2 % | ≤0.15 |
เฟ2โอ3 % | ≤0.12 |
ความหนาแน่นจำนวนมาก g/cm3 | ≥3.2 |
รูพรุนที่ชัดเจน % | ≤16 |
MPA ความแข็งแรงบดเย็น | ≥100 |
0.2การหักเหของ MPA ภายใต้โหลด℃ | ≥1700 |
อัตราการเปลี่ยนแปลงเชิงเส้นถาวร % 1600 ℃× 3H | ±0.2 |
วงจรความต้านทานแรงกระแทกด้วยความร้อน 1100 ℃การระบายความร้อนด้วยน้ำ | ≥5 |
Characteristics of high-purity corundum bricks


- ความต้านทานอุณหภูมิสูง
- High compressive strength
- Highly dense structure
- Good thermal shock resistance
- Strong resistance to acid and alkali residue erosion
- good chemical stability
- Good resistance to metal and molten glass
Application scope of high-purity corundum bricks

Refractory materials industry: High-purity corundum bricks are treasures in the field of refractory materials. They are widely used in the lining of high-temperature industrial equipment such as furnaces, converters, เตาไฟฟ้า, and crucibles, effectively ensuring long-term stable operation of equipment in high-temperature environments.
Steel smelting: In the steel smelting process, high-purity corundum bricks are an indispensable lining material. They have excellent fire resistance and corrosion resistance and can withstand harsh environments at high temperatures.
Aluminum electrolytic cell: In the aluminum electrolysis industry, high-purity corundum bricks can be used as lining materials for electrolytic cells. Because of their stability at high temperatures, they can effectively resist high-temperature erosion during the aluminum electrolysis process.
Glass furnace: High-purity corundum bricks can be used as the lining of glass furnaces. Its high melting point and excellent heat resistance enable it to withstand the corrosion of high-temperature molten glass in the glass furnace.
Chemical industry: In high-temperature, highly corrosive chemical environments, high-purity corundum bricks also play an important role and are used to manufacture the linings of reactors, catalyst carriers, and other equipment.
High-purity corundum brick video
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