High Refractoriness Magnesia Chrome Brick Moulding Crushing

MGO Magnesia Chrome Fire Refractory Brick for Cement Kiln

Natural fused ore or its selected products and sintered magnesia made of natural or synthetic raw materials are the basic raw materials for the manufacture of magnesia chrome bricks. Ordinary magnesia chrome bricks or silicates combined with magnesia chrome bricks (containing 4% to 7% SiO2) combined with a lower melting point of the cinnamate phase (calcium-magnesium olivine CMS and magnesium-scruzzo C3MS2) combined with high refractory Magnesia and chrome, iron and aluminum composite magnesium spinel are formed, so it has high high temperature plasticity and microstructure toughness. It shows stress relaxation above 800 °C and good thermal shock stability. It is most suitable for 1000t. Used in small kiln below /d. However, its load softening temperature is low, and it is easy to be damaged by overheating, so it is rarely used in large precalcining kiln (≥4000t/d).

Magnesia-chrome bricks with low silicate content (including 2.5%~4% SiO2) still have certain microstructure toughness and high temperature stability, which is suitable for use in rotary kiln of 1500~4000t/d. It can also be used on both sides of the firing zone in the larger format rotary kiln. This brick can be referred to as a semi-direct combined magnesium chrome brick.

Please contact customer service for the specific parameters.

Company Profile:

• Founded in the 1984, listed on the Hong Kong Stock Exchange on October 15, 1999 (name: China Rare Earth, code: 0769)
• The company is headquartered in Yixing, with branches in Shanghai and Hong Kong
• Professional manufacturer of Rare Earth and refractories
• The top 3 supplier of refractories in China
• covers an area of 360,000 square meters and a building area of 240,000 square meters.More than 2,000 employees, Scientific and technological personnel account for 30% of the total number of employees.
• Obtained more than 11 patent certificates
• Established a technical cooperation relationship with Japan Krosaki Harima Corp.
• Long-term supply to Japan Nippon Steel, Japan NKK, Kimizu, Aoida and Nisingkou steel Co

Testing

Strict delivery inspection, so that every product is in line with the standard.

FAQ

1. What are refractory products?

Refractory products refer to functional materials which can resist high temperature or even ultra-high temperature. They are widely used in various high temperature heat treatment equipment, such as steels-melting kiln, glass kiln and cement kiln. The quality of refractory products directly affects the usable life of kilns and the quality of the final industrial output. Refractory products are made from various natural minerals such as silica, dolomite, graphite, zircon, magnesia, high aluminium ore and chrome ore through numerous technical refining processes. They have valuable features such as high-heat insulation, high-heat resistance, high strength, high hardness, good volume stability, oxidation resistance, excellent complexity, wear resistance, corrosion resistance, etc.. Some refractory products even have special features such as high ventilation, heat conduction and extreme hardness.

2. Any differences between shaped and unshaped refractory products?

Shaped refractory products can be pressed into bricks and are, generally used in building heat treatment equipment such as metallurgical kilns. Unshaped refractory products refer to fire-resistant casting materials. They can be moulded into whatever shapes and are suitable for building different high temperature furnaces and using as the lining in different heat treatment furnaces.

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 Ceramics Co., Ltd, professionally work on medium-to-high grade refractory material research, development, produce and project construction.

The company can produce the refractory material products of 178 product brands under eight major series, the annual production capacity is up to 100,000 tons, among them, 60,000 tons of fired products medium-to-high gradly, 20,000 tons of unfired products, 20,000 tons of unshaped refractory materials. The company enjoys the power to engage in import and export trade on its own account, the products find a good sale in Japan, Korea S., Russia, Australia, U.S.A. etc. . Company refractory exported account take advanced position in domestic.

The refractory materials produced by No.2 branch of our company mainly serve metallurgical industry at home and abroad. Since the company was set up, we have established technologically cooperative relations with Japan Krosaki Harima Corp., and mastered advanced technology about refractory material production, and we have got a great achievement in improving the quality and developing new varieties of refractory materials ,which are used in refining furnaces, pouring ladle mixers, blast-furnaces, hot-air furnaces, large lime kilns, and non-ferrous metallurgy, and products, which are made in China rather than imported, have met requirement in designing and using. For instance, we provided a series of deoxided vacuum electrical-smelted re-integrated magnesia-chrome bricks for the outside of RH furnace for Baoshan steel Co., Wuhan steel Co., Taiyuan steel Co., Ma' anshan steel Co... We supplied series of directly bonded magnesia-chrome, semi-reintegrated chrome-magnesita, electrical-smelted re-bonded magnesia-chrome cast materials ,etc. for domestic large non-ferrous metal plants, such as Guixi metallurgical plant, Tongling non-ferrous metal Co, Ltd. and Jinlong copper industry plant. And we furnished low-creep mullite series products,pre-masonry cordierite-mullite bricks, sillimanite ones, micro-porous sintered Alumina-carbon ones and cast materials for ladle body, tapping landers, slaglanders, branch landers and pre-fabricated parts for Baoshan steel Co., Ma anshan steel Co., No. 1 branch of Shanghai steel Co. and ZIMBABWE Co. which is assisted by Beijing, Jiuquan steel Co., etc. And we provided NKK AL203-SiC-C products in use for torpedo cars for Japan Nippon Steel, Japan NKK, Japan Kimitsu, Japan Oita, Japan Nisshin.

In recent years, it has cooperated with Japan's Kurosaki Harima Co., Ltd. in deep technical cooperation, and has hired Japanese experts to serve as chief engineers in the company all the year round. From raw material selection to finished product production to product packaging and transportation, all links are produced and controlled according to international standards. The company's technical solutions and process lines have been optimized, and a complete set of electrofusion recombination and semi-recombination magnesia-chrome brick production processes have been developed. , high-quality high-purity magnesia bricks and non-fired aluminum silicon carbide carbon bricks and other products have entered a large number of "Nippon Steel Co., Ltd., Steel Pipe Co., Ltd. Yawata, and Hiroko Steel Works, creating a new road for my country's refractory exports and for my country's The optimization of refractory resources has laid a certain foundation.

In addition to meeting the general needs of steel mills, the eight series of refractory products produced by our company (see the company's general sample) have also developed many special products to meet the special requirements of the metallurgical industry, and matched our leading products to provide The user implements the EPC to meet the user's needs.