Refractory bricks,Insulating materials,Refractory castable,Customized refractory shapes,Precast refractory shapes
Magnesia Chrome brick
Characters of Magnesia Chrome brick:
MgO and Cr2O3 are the main components of Magnesia Chrome brick. Cr2O3 can increase the refractory bricks erosion resistance ability to mirabilite (salt cake). The main raw material are sintered magnesite and chromite. Magnesia’s purity should be as high as possible, chromite chemical composition requirement is: Cr2O3:30 ~ 45%, CaO: 1.0 ~ 1.5% or less.
Applications of the Magnesia Chrome brick:
The Magnesia Chrome bricks are mainly used as chequer bricks of the regeneration zone.
The chequer bricks are working in conditions of air and coal gas, oxidation and revivifications reaction, high temperature changes and condensation of alkali smoke. So the checker brick which is made of alkali refractory materials is the best choice to work for such atmosphere.
Magnesite-chrome bricks are wildly applied in metallurgical industry, such as constructing open hearth furnace top, electric furnace roof, refining furnace outside the furnace and various non-ferrous metal smelting furnace.
Fused magnesite chrome brick are used on the high temperature parts of the ultra high power electric furnace wall, magnesia chrome brick made from synthetic materials are used on the high erosion area of the refining furnace outside the furnace. In addition, magnesia-chrome brick is also used in cement rotary kiln burning zone and regenerator of glass kilns etc.
Physical and Chemical Index.
Index & Item
Cold crushing strength,MPa,≥
Zhengzhou Juda Refractories Co., LTD., headquartered in Xinmi county, Zhengzhou city, Henan province, adjacent to Beijing-guangzhou railway, Longhai railway so the transportation is convenient which providing an excellent condition for the high temperature industry. We have our own import and export rights. After years of operation and development, we have now formed a set of metallurgy, electric power, chemical, steel, cement and other high temperature refractory materials used in industrial production and sales of integrated enterprises. Our Company has a staff of 211 people, including 31 engineering and technical people, 8 architects. The annual production capacity is 33000 tons, with 3 fully automatic production line. We also have a scientific research and development center, a product quality supervision and inspection center with modern production equipment and strict process control method. With the implementation of ISO9000 international quality management system, customers can be really easy to purchase. At present the company has three branches, five construction departments which passed the qualification examination by Henan Construction Department. We are qualified to undertake the designing, building of a variety of large and medium-sized high temperature industrial kilns. From August to October, 2013, our company undertook the a large package engineering of 8 units of 40500 kva-arc furnace refractory material for the metallurgical branch of Ningxia Tianjing Metallurgy co., LTD., . We have rich experience and professional team in designing and building the the submerged arc furnace. Welcome both new and old customers to negotiate! Our Main Products : High aluminum products: universal high alumina brick, high alumina brick for blast furnace, hot blast stove furnace, Electric furnace roof, Phosphate combined with high alumina brick for cement kiln, anti-stripping alumina brick, Low Creep High Alumina Bricks etc. Siliceous products: siliceous refractory brick for hot blast stove furnace, glass kiln stove, coke oven etc. Alkaline products: magnesium brick, magnesite chrome brick, magnesia spinel brick and magnesia alumina brick, etc. Clay products: universal clay brick, low porosity clay brick and low creep clay brick, etc. Carbon products: magnesium carbon brick, silica carbide brick, carbon materials, thick seam (fine) paste, etc Special products: silicon mo brick, Alumina mullite composite bricks, Alpha Alpha alumina powder, Alumina hollow brick, etc Heat insulation products: argillaceous, high aluminium, siliceous, diatom clay soil thermal insulation brick, rock wool, aluminum silicate cotton, asbestos, aluminum silicate tube, aluminum silicate fiber blanket, acupuncture blankets, etc. Unshaped refractory materials:Corundum mullite, silicon carbide, high aluminum refractory castable material, corrosive-proof plastic material, micro expansion plastic material, high alumina, high strength refractory castable, Steel fi