yixing xinwei leeshing refractory materials co.,Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | 10000 Metric Ton/Metric Tons per Month |
| Delivery Time | To be negotiated |
| Packaging Details | International wooden pallet. Or According to customer's demands |
| product name | Magnesia Refractory Bricks |
| CaO Content (%) | customizable |
| Fe2O3% | ≤0.2-≤0.5 |
| Feature | Good thermal shock resistance |
| Bulk density,g/cm3 | 3.63 |
| Shape | Brick |
| Brand Name | CRE |
| Model Number | XZM |
| Certification | ISO9001,ISO14001,ISO50001,ISO45001 |
| Place of Origin | JIANGSU,CHINA |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 10000 Metric Ton/Metric Tons per Month |
| Delivery Time | To be negotiated | Packaging Details | International wooden pallet. Or According to customer's demands |
| product name | Magnesia Refractory Bricks | CaO Content (%) | customizable |
| Fe2O3% | ≤0.2-≤0.5 | Feature | Good thermal shock resistance |
| Bulk density,g/cm3 | 3.63 | Shape | Brick |
| Brand Name | CRE | Model Number | XZM |
| Certification | ISO9001,ISO14001,ISO50001,ISO45001 | Place of Origin | JIANGSU,CHINA |
| High Light | Silicate Bonded Magnesia Refractory Bricks ，Magnesia Carbon Bricks ISO ，thermal shock resistance Magnesia Refractory Bricks | ||
Factory Price Magnesia Carbon Bricks Refractory Brick Top Quality Custom Made
Since there are many varieties of magnesia-chromium refractory bricks, some literatures have classified and summarized them:
(1) Silicate-bonded magnesia-chromium refractory bricks (ordinary fired magnesia-chromium bricks). This kind of brick is made of common chrome ore with high content of impurities (SiO2 and CaO) and brick-making magnesia, and the firing temperature is about 1550 ℃. The structural characteristics are: the refractory grains are combined by silicate, the apparent porosity is high, the resistance to slag erosion is poor, and the high temperature volume stability is poor.
(2) Pre-reacted magnesia-chromium refractory bricks. The magnesia (light-burned magnesia powder) and the chrome ore are co-milled and fired in a kiln, and the synthetic magnesia-chrome sand is used as the raw material to make bricks to form "pre-reacted magnesia-chrome bricks". Pre-reacted magnesia-chrome bricks are an improved type of silicate-bonded magnesia-chrome bricks.
(3) Directly combine magnesia-chromium refractory bricks. The direct-bonded magnesia-chromium refractory is made of chromium concentrate with low impurity content and relatively pure magnesia, and the firing temperature is above 1700 ℃. Its structural characteristics are: the refractory grains are mostly in direct contact, and the direct bonding degree of periclase (solid solution)-periclase (solid solution) and periclase (solid solution) spinel (solid solution) in the brick is high, so Its high temperature performance, good slag corrosion resistance, and high temperature volume stability are better than ordinary magnesia-chrome bricks.
(4) The molten grains are combined with magnesia-chromium refractory bricks (electro-dissolved and then combined with magnesia-chromium). The magnesia and chrome ore (light burnt magnesia powder or magnesite and chrome ore) are fully and uniformly reacted by the electrofusion method to synthesize periclase solid solution and spinel solid solution magnesia-chromium raw materials with more ideal structure, and then combine magnesia-chromium The brick is made of this raw material, which is called molten grain recombined magnesia-chrome brick. Since the raw materials for making refractory bricks are relatively pure, they all need to be fired at a high temperature or ultra-high temperature above 1750 °C. Its microstructure is characterized by uniform distribution of spinel and other components, low porosity, direct contact between refractory grains, high compressive strength, good corrosion resistance, and high temperature strength, but the disadvantage is thermal shock stability. poor.
| 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 |
| AL2O3% ≥ | 510 | 510 | 815 | 815 | 815 | 510 | 510 | 510 |
| 0.2MPa refractoriness under load 0C ≥ | 1600 | 1580 | 1700 | 1650 | 1600 | 1620 | 1600 | 1700 |
| cold crushing strength MPa ≥ | 45 | 40 | 35 | 35 | 35 | 39.2 | 39.2 | 35 |
| apparent porosity % ≤ | 18 | 20 | 17 | 18 | 19 | 18 | 18 | 16 |
| thermal shock resistance (11000C-water) times ≥ | 20 | 15 | 10 | 7 | 5 | |||
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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 1,000 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.
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Company Details
Business Type:
Manufacturer
Year Established:
1984
Total Annual:
100000000-120000000
Employee Number:
1500~2000
Ecer Certification：
Verified Supplier
Yixing Xinwei Leeshing Refractory Material Co., Ltd Refractory Industry is one of pillar industries in China Rare-Earth Holding Group. Beneath its 100% holding, there are two subsidiaries: Yixing Xinwei Leeshing Refractory Material Co., Ltd and Wuxi Xinwei Pan-Asia High-Temperature Cera... Yixing Xinwei Leeshing Refractory Material Co., Ltd Refractory Industry is one of pillar industries in China Rare-Earth Holding Group. Beneath its 100% holding, there are two subsidiaries: Yixing Xinwei Leeshing Refractory Material Co., Ltd and Wuxi Xinwei Pan-Asia High-Temperature Cera...
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