High Temperature Resistance,Large Body Density,Low Water Absorption, Small Thermal Expansion Coefficient Fused Spinel

Fused spinel is a high purity magnesia-alumina spinel grain, which is pr oduced by fusing high purity magnesia and alumina in an exlectric arc furnace. After solidification and cooling, it is crushed and graded to desire ed sizes. It is one of the most resistant refractory compounds.Having a low thermal working temperature, are outstanding in high refractoriness thermal stability and chemical stability, magnesia-alumina spinel is a highly recommended refractory raw material. Its excellent characteris tics such as nice color and appearance, high bulk density, strong resistance to exfoliation and stable resistance to thermal shock,which e nable the product to be widely used in rotary kilns, the roof of electric furnaces iron and steel smelting, cement rotary kiln, glass furnace and me etallurgical industries etc.
send email to us

Products Details

Product introduction:Fused magnesia-aluminum spinel is made of high-quality low-sodium alumina a high-purity light-burned magnesia powder as raw materials, and is smelted in an electric arc furnace a high temperature above 2000℃. Product features: high temperature resistance,large body density,low water absorption, small thermal expansion coefficient,good thermal shock stability, strong corrosion resistance and slag resistance. Compared with the sintering method to synthesize spinel, the electrofusion method has a higher calcination temperature, about 2000°C, which makes the spinel denser, has a higher volume density, and is more resistant to hydration. The process is similar to the sintering method to synthesize spinel. The raw materials mainly use industrial alumina and high-quality light-burned magnesium oxide powder. Product use: It is widely used in steel smelting,electric furnace roof,ladle, cement rotary kiln, glass industrial furnace and metallurgical industry,etc.It is an ideal material for manufacturing continuous casting skateboards, nozzle bricks, ladle lining bricks and flat furnace bricks, as well as large-scale cement Basic raw materials for kilns, transition zone lining bricks of medium-sized cement kilns, refractory castables and high and medium temperature kiln furniture bricks.Manufactured from high purity magnesia and Bayer process alumina in large electric arc furnace. It has excellent refractory properties, and can be used to produce Bricks and Castables in areas where slag resistance is key. Such as: Roof of EAF and basic oxygen furnace, Steel ladle, intermediate zone of cement rotary kiln, etc.

ITEM

UNIT

BRANDS

AM-70

AM-65

AM-85

AM90
Chemical composition Al2O3 % 71-76 63-68 82-87 88-92
MgO % 22-27 31-35 12-17 8-12
CaO % 0.65max 0.80max 0.50max 0.40max
Fe2O3 % 0.40max 0.45max 0.40max 0.40max
SiO2 % 0.40max 0.50max 0.40max 0.25max
NaO2 % 0.40max 0.50max 0.50max 0.50max
Bulk Density g/cm3 3.3min 3.3min 3.3min

3.3min
‘S’ ----sintered ;    F-----fused ;    M------magnesia;   A----alumina;  B----bauxiteThe company's production of fused aluminum magnesium spinel has many levels, according to the requirementsof users, particle size, fineness can be produced on demand.

Previous:Green Silicon Carbide Is Suitable For Cutting And Grinding Solar Silicon Chips, Semiconductor Silicon Chips And Quatz Chips, Crystal Polishing, Ceramic And Special Steel Precision Polishing

Next:Calcined Alumina Ultrafine For High-Performance Refractories,can be used in castables with silica fume and reactive alumina powders, to reduce water addition, porosity and to increase strength, volume stability.

Alumina Abrasive, Tabular Alumina Uses, Black Aluminum Oxide, Dramix 3d Steel Fiber, Boron Carbide Steel, Hindalco Calcined Alumina, Bekaert Fiber, Brown Fused Aluminium Oxide, Magnesia Spinel, Glued Steel Fiber,

Featured Products

Contact us

Please feel free to give your inquiry in the form below We will reply you in 24 hours