Fused corundum brick is mainly composed of α-Al2อ3, which has high-temperature resistance, strong alkali resistance, โครงสร้างที่กะทัดรัด, excellent chemical stability, ทนต่อการสึกหรอได้ดี, and is far more resistant to various slags than other aluminum silicates. It is an ideal material for metallurgical electrolytic cells and sliding rail bricks for heating furnaces.
The production process of fused corundum brick
Fused corundum bricks are melted alumina in arc aluminum and then cast into a specific model, so the customization of fused corundum bricks needs to change different molds; through diamond abrasive processing, the required fused corundum bricks can be obtained.
Fused corundum brick parameter
รายการ | ดัชนี | ||
Fused Cast α Corundum Bricks | Fused Cast β Corundum Bricks | Fused Cast α-β Corundum Bricks | |
อัล2อ3 % | 98 | 92 | 94.0 |
เรียบร้อยแล้ว2อ % | 1.0 | 6.5 | 4.0 |
ซีโอ2+CaO+Fe2อ3+ทีโอ2 % | ≤1.0 | ≤1.5 | ≤2.0 |
α-Corundum % | 90 | 2 | 44 |
β-Corundum % | 4 | 97 | 55 |
Glass Phase % | 6 | 1 | 1 |
ความหนาแน่นเป็นกลุ่ม (Dense part) กรัม/ซม3 | 3.3 | 3.1 | 3.3 |
ความแรงของการบดเย็น MPa | 200 | 50 | 200 |
0.2Mpa Refractoriness Under Load ℃ | 1700 | 1700 | / |
Static Resistance To Liquid Glass Erosion Depth mm/24h Ordinary Soda Lime Glass 1350℃×48h | / | / | 0.3 |
Advantages of sintered corundum bricks
- High temperature and pressure resistance.
- Fire and heat insulation.
- High-density, anti-oxidation.
- High wear resistance.
- ทนต่อการกัดกร่อนได้ดี.
- เสถียรภาพทางความร้อนที่ดี.
- Low coefficient of thermal expansion.
- รองรับการปรับแต่ง.
Application fields of fused corundum bricks
- อุตสาหกรรมเหล็กและเหล็กกล้า: Fused corundum bricks are often used in the lining of high-temperature containers such as ladles, iron ladles, and converters in the iron and steel industry.
- อุตสาหกรรมแก้ว: Fused corundum bricks are suitable for high-temperature parts such as glass steel sheets and furnace throats in glass furnaces.
- อุตสาหกรรมเคมีภัณฑ์: Fused corundum bricks can be used as refractory materials for high-temperature reaction kettles, high-temperature storage tanks, and high-temperature pipelines in the chemical industry.
- Aluminum smelting industry: Fused corundum bricks can be used in the lining of high-temperature containers such as aluminum electrolytic cells in the aluminum smelting industry.
- Powder metallurgy industry: Fused corundum bricks can be used for lining high-temperature sintering furnaces in the powder metallurgy industry.
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Corundum brick factory
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One-to-one customized refractory production plan
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