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Product Details:
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| HS CODE: | 69022000 | Al2O3 Content (%): | ≤38-≤80 |
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| Fe2O3%: | ≤0.2-≤0.5 | Feature: | Good Thermal Shock Resistance |
| Bulk Density,g/cm3: | 3.63 | Shape: | Brick |
| High Light: | Fused Rebonded Magnesia Refractory,fire resistant bricks ISO9001,Magnesia Refractory RH Furnace |
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Factory price magnesia refractory series products fused rebonded magnesia refractory brick for RH furnace
Technological Development of RH Furnace and Influence on Refractories
Steel furnace external refining, also known as secondary metallurgy, is one of the main development directions of steel metallurgy technology. The purpose of external furnace refining is to remove the inclusions and impurities in the steel water. deaerate. Adjust the chemical composition of water steel and alloy homogenization, measures include blowing inert gas mixing. vacuum degassing. decarbonization. deoxidize. Feed the silk. Powder spraying and alloying, etc.
In recent years, with the rapid development of the metallurgical industry, the requirements for steel quality are getting higher and higher, and the demand for pure steel is increasing, thus promoting the rapid development of RH refining technology. So far, RH refining technology has been transformed from the original single degassing purification to include vacuum decarburization. Oxygen decarbonization. Powder desulfurization. Temperature compensation. Multifunctional out-of-furnace refining technology for uniform temperature and composition.
The increase of RH vacuum cycle degassing furnace top gun mode, the expansion of function is below the middle groove. The lower groove wall and groove bottom working lining refractory material is a test.
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index item |
magnesia-alumina brick |
magnesia-alumina spinel brick |
Periclase-spinel brick |
high-purity mag-alumina brick |
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MgO% ≥ |
80 |
80 |
80 |
75 |
70 |
82 |
80 |
86 |
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AL2O3% ≥ |
510 |
510 |
815 |
815 |
815 |
510 |
510 |
510 |
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0.2MPa refractoriness under load 0C ≥ |
1600 |
1580 |
1700 |
1650 |
1600 |
1620 |
1600 |
1700 |
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cold crushing strength MPa ≥ |
45 |
40 |
35 |
35 |
35 |
39.2 |
39.2 |
35 |
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apparent porosity % ≤ |
18 |
20 |
17 |
18 |
19 |
18 |
18 |
16 |
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thermal shock resistance (11000C-water) times ≥ |
20 | 15 | 10 | 7 | 5 |
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FLow chart
Company Profile
China Rare Earth Holdings Co., Ltd. is a large cross-regional company with its headquarter registered in Hong Kong. It is a company listed on the Hong Kong Stock Exchange (name: China Rare Earth, code: 0769). Yixing Xinweilicheng Refractories Co., Ltd. is a wholly-owned subsidiary of China Rare Earth Holdings Co., Ltd. and one of the pillar industries of the holding company. The company covers an area of 360,000 square meters and a building area of 240,000 square meters. It has more than 2,000 employees, of which scientific and technological personnel account for 30% of the total number of employees.
Over the years, the company has closely followed the development pace and trend of the international and domestic refractory material markets, invested heavily in expansion and reconstruction, adjusted the industrial structure, and constantly pursued and surpassed development. With the support and help of many close partners at home and abroad, and the sincere unity and hard work of all employees, the company has become one of the important bases for domestic production of medium and refractory materials.
Company advantage
Commencement Ceremony and Signing Ceremony of Technical Trade Cooperation with Japan Krosaki Harima Corp.
Packing
Contact Person: Cathy
Tel: 13901538890
Fax: 86-510-87459052
