temperature resistance sintered spinel for refractory
Advanced lightweight periclase-magnesium aluminate spinel
The dense periclase-magnesium aluminate spinel refractory (named as DPSR) was prepared by using 70 wt sintered magnesia aggregates 22 wt magnesia powder 5.2 wt spinel powder 2.0 wt corundum powder 0.8 wt α-Al 2 O 3 micro-powder. In addition 5 wt pulp waste liquid (the mass ratio of lignin sulfonate to water was 6 5) based on the dry mass was added as a binder.
Good Flexibility Magnesia Spinel Bricks Corrosion
· MgO ≥ 85 SiO2 ≤ 1.0 Bulk Density(g/cm3) 2.95 Na Good Flexibility Magnesia Spinel Bricks Corrosion Resistance High Temperature Brick
Investigation of a spinel-based refractory as a carrier
· Investigation of a spinel-based refractory as a carrier for a steel melt temperature sensor materials that were sintered at the higher temperature of 1650°C. concluded that a resistance temperature detector (RTD) made of platinum wires embedded in an alumina-rich lance could provide temperature measurements in molten steel3. Although
A STUDY ON SPINEL FORMATION AND SINTERING
· properties of the refractory body 8 . The in situ spinel formed in the alumina ramming mix at service temperature has a defective structure with a tendency of tional solid solutions while in contact with molten steelmaking slag 9 . When Fe2 and Mn2 cations migrate into A-site of spinel they form (Mg Mn Fe)O(Al Fe) 2 O 3
High Temperature Refractory Castable for Heat Treatment
· High temperature refractory castable for heat treatment furnace lining can also be used. The heat treatment furnace is composed of three parts furnace wall furnace top and furnace bottom. Materials such as refractory bricks refractory castables and refractory fiber cotton are
Alumina Magnesia Refractory CastablesRS Kiln Refractory
The characteristics of alumina-magnesia spinel refractory castables are high-temperature resistance strong structural spalling resistance resistance to chemical corrosion of steel slag resistance to rapid cold and rapid heat non-sticking to molten steel and resistance to erosion. Use the pouring vibration method for construction.
An Introduction to Refractory Aggregates
· Spinel (Mg.Al 2 O 3) as well as dichromite (MgO.Cr 2 O 3) are employed in refractory castable formulations.Their melting points are 2135 °C and 2350 °C respectively. At high temperature spinel is more neutral than alumina but its corrosion resistance against standard slags is high.
Investigation of a spinel-based refractory as a carrier
· Investigation of a spinel-based refractory as a carrier for a steel melt temperature sensor materials that were sintered at the higher temperature of 1650°C. concluded that a resistance temperature detector (RTD) made of platinum wires embedded in an alumina-rich lance could provide temperature measurements in molten steel3. Although
China High Temperature Castable Refractory Cement
High chemical and physical stability flame retardant shock resistance insulation heat Applicable temperature between -40 °C to 80 °C.
PREMIUM ALUMINA FOR REFRACTORY APPLICATIONS
· High temperature calcium aluminate cements Magnesium aluminate spinel has excellent refractory properties with a melting point of sot ichiometric spinel of 2135 °C. All spinels have erties especially creep resistance of high purity sintered spinel.
SUNDAR METALLURGY REFRACTORY CO. LIMITED
Sundar Fused Spinel using alumina and high purity light-burnt magnesia as main starting materials fusing in electric arc furnace and cooled is a new kind of high purity synthesized refractory raw material. Sundar Fused Spinel is characterized by high bulk density good thermal shock resistance and corrosion resistance.
Alumina Magnesia Refractory CastablesRS Kiln Refractory
The characteristics of alumina-magnesia spinel refractory castables are high-temperature resistance strong structural spalling resistance resistance to chemical corrosion of steel slag resistance to rapid cold and rapid heat non-sticking to molten steel and resistance to erosion. Use the pouring vibration method for construction.
Chapter 3 Steel Plant Refractories
· sia is then briquetted or pelletized for firing into dense refractory-grade magnesia usually in shaft kilns which reach temperatures around 2000°C (3630°F). The end product is sintered magnesia. Fused magnesia is produced by melting a refractory grade magnesia or other magnesia precursor in an electric arc furnace.
Investigation of a spinel-based refractory as a carrier
· Investigation of a spinel-based refractory as a carrier for a steel melt temperature sensor materials that were sintered at the higher temperature of 1650°C. concluded that a resistance temperature detector (RTD) made of platinum wires embedded in an alumina-rich lance could provide temperature measurements in molten steel3. Although
A STUDY ON SPINEL FORMATION AND SINTERING
· properties of the refractory body 8 . The in situ spinel formed in the alumina ramming mix at service temperature has a defective structure with a tendency of tional solid solutions while in contact with molten steelmaking slag 9 . When Fe2 and Mn2 cations migrate into A-site of spinel they form (Mg Mn Fe)O(Al Fe) 2 O 3
Raw materials for refractory products
In addition to alumina-rich spinels we also offer magnesia-rich spinels which are used in magnesite refractory bricks for example. High strength resistance to changes in temperature and slag resistance make alumina-rich spinels particularly attractive for the iron and steel industry.
Sintered-MA-Spinel Refractory Industry erzkontor
The firing temperature is approx. 1 800°C. The briquettes have a size of approx. 30mm and can be crushed and milled in order to achieve the required grain sizes. Processing method
Influence of MgAl2O4 Spinel Addition on Properties of
pressed and sintered at 1500 °C with 22h soaking. The refractory with 5wt MgAl 2O 4 exhibited the best properties in terms of bulk density and apparent porosity. In all the refractory samples new phases were formed as a result of slag-refractory and copper-refractory interaction. With the addition of MgAl 2O 4 spinel the corrosion resistance of
Investigation of a spinel-based refractory as a carrier
· Investigation of a spinel-based refractory as a carrier for a steel melt temperature sensor materials that were sintered at the higher temperature of 1650°C. concluded that a resistance temperature detector (RTD) made of platinum wires embedded in an alumina-rich lance could provide temperature measurements in molten steel3. Although
PREMIUM ALUMINA FOR REFRACTORY APPLICATIONS
· High temperature calcium aluminate cements Magnesium aluminate spinel has excellent refractory properties with a melting point of sot ichiometric spinel of 2135 °C. All spinels have erties especially creep resistance of high purity sintered spinel.
Products SUNDAR METALLURGY REFRACTORY CO.
Sundar Fused Spinel using alumina and high purity light-burnt magnesia as main starting materials fusing in electric arc furnace and cooled is a new kind of high purity synthesized refractory raw material. Sundar Fused Spinel is characterized by high bulk density good thermal shock resistance and corrosion resistance.
A STUDY ON SPINEL FORMATION AND SINTERING
· properties of the refractory body 8 . The in situ spinel formed in the alumina ramming mix at service temperature has a defective structure with a tendency of tional solid solutions while in contact with molten steelmaking slag 9 . When Fe2 and Mn2 cations migrate into A-site of spinel they form (Mg Mn Fe)O(Al Fe) 2 O 3
Aggregate Effects on the Thermal Shock Resistance of
Aggregate Effects on the Thermal Shock Resistance of Spinel-Forming Refractory Castables M.A.L. Braulio G.B. Cintra Y.W. Li V.C. Pandolfelli The performance of spinel forming refractory castables is mainly re-lated to their slag corrosion and thermal shock behaviors. Concern-ing the thermal shock resistance the aggregate selection is an im-
SUNDAR METALLURGY REFRACTORY CO. LIMITED
Sundar Fused Spinel using alumina and high purity light-burnt magnesia as main starting materials fusing in electric arc furnace and cooled is a new kind of high purity synthesized refractory raw material. Sundar Fused Spinel is characterized by high bulk density good thermal shock resistance and corrosion resistance.
Products SUNDAR METALLURGY REFRACTORY CO.
Sundar Fused Spinel using alumina and high purity light-burnt magnesia as main starting materials fusing in electric arc furnace and cooled is a new kind of high purity synthesized refractory raw material. Sundar Fused Spinel is characterized by high bulk density good thermal shock resistance and corrosion resistance.
Magnesium Aluminate Spinel Raw Materials for High
· Magnesium aluminate spinel is a highly refractory material with a melting point of 2135 o C. Table 1 shows a comparison of the density thermal expansion coefficient and thermal conductivity of the end-members (MgO Al 2 O 3 ) compared to the spinel phase.
Luoyang i Refractory Co. Ltd.
Luoyang i Refractory Co. Ltd. is located in Luoyang a capital of thirteen dynasties. It was founded on April 24 2014. The company is mainly engaged in supplying refractory raw materials bricks castables dry ramming mix etc. for industrial kilns and furnaces in high temperature industries such as iron and steel building materials
Improvement of Resistance of MgO-Based Refractory to
· Improvement of Resistance of MgO-Based Refractory to Slag Penetration by In Situ Spinel Formation HUIJUN WANG BJO¨RN GLASER and DU SICHEN MgO-in situ spinel substrate was prepared at 1773 K (1500 C) using colloidal alumina sus-pension and coarse MgO as raw materials. While the addition of 10 mass pct colloidal alumina
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Fused Spinel Alumina-Magnesia Spinel Spinel Refractory
Fused Spinel Alumina-Magnesia Spinel is one of the most resistant refractory compounds. It has great features such as low thermal working temperature outstanding refractoriness thermal stability and chemical stability. Fused Spinel Alumina-Magnesia Spinel is a highly recommended refractory
PREMIUM ALUMINA FOR REFRACTORY APPLICATIONS
· High temperature calcium aluminate cements Magnesium aluminate spinel has excellent refractory properties with a melting point of sot ichiometric spinel of 2135 °C. All spinels have erties especially creep resistance of high purity sintered spinel.
