Corundum Brick

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  • Fireclay Brick

    Fireclay Brick

    Fireclay bricks are made of 50% soft clay and 50% hard clay clinker, which are batched according to certain particle size requirements. After molding and drying, they are fired at a high temperature of 13001400. Fireclay bricks are weakly acidic refractory products, which can resist the erosion of acidic slag and acid gas, and have a slightly weaker resistance to alkaline substances, good thermal performance, and resistance to rapid cold and heat

    Fireclay bricks are one of the main varieties of silica-alumina series products. They are refractory products with 30-48% Al2O3 content made of clay clinker as aggregate and refractory clay as binder.

  • Silica Brick

    Silica Brick

    Silica brick is an acidic refractory material with good resistance to acid slag erosion. The softening temperature of the silica brick under load is as high as 1640~1670°C, the volume is relatively stable at high temperature, and it can be used for a long time.

    An acidic refractory material mainly composed of tridymite, cristobalite and a small amount of residual quartz and glass phase. The silicon dioxide content is above 94%, the true density is 2.35g/cm3, it has resistance to acid slag erosion and higher high temperature strength. It will not deform after long-term use at high temperature. Low thermal shock stability (1~4 times of heat exchange in water) Natural silica is used as the raw material, and an appropriate amount of mineralizer is added to promote the conversion of quartz in the body to tridymite. Slowly fired at 1350~1430℃ under reducing atmosphere. When heated to 1450℃, there will be about 1.5~2.2% of the total volume expansion. This residual expansion will make the cut joints close and ensure that the masonry has good air tightness and structural strength.

  • Corundum Brick

    Corundum Brick

    The alumina content of corundum brick is more than 90% and the main crystal phase is corundum. It has high compressive strength at room temperature (up to 340MPa), high load softening start temperature (more than 1700℃), good chemical stability, and strong resistance to acidic or alkaline slag, metal and molten glass, etc. Resistance.
    Thermal shock stability is related to its structure, and the corrosion resistance of dense products is good. There are two types of sintered corundum bricks and fused corundum bricks. Sintered alumina and fused corundum can be used as raw materials, or bauxite clinker with high Al2O3/SiO2 ratio can be combined with sintered alumina and made by sintering method. Phosphoric acid or other bonding agents can also be used to make non-fired corundum bricks.

  • Special Alumina Brick

    Special Alumina Brick

    Special alumina bricks are made of high-grade sillimanite, pyrite, mullite, and corundum as raw materials, and have a refractoriness of 1750~1790. Among them, Al2O3 is high, and the amount of impurities is small, and the formation of fusible glass is small. Therefore, the load softening temperature is higher than that of clay bricks. Special alumina bricks contain more Al2O3, which is close to neutral refractory materials and can resist the erosion of acid slag and alkaline slag.

  • High Alumina brick

    High Alumina brick

    High alumina brick is an alumina silicate refractory material, in which alumina content exceeds 55%, and it is calcined from high content alumina raw materials. It has high heat resistance and high temperature resistance at 1770°C and above. High alumina bricks have good slag resistance and are mainly used for masonry of steel-making electric furnaces, glass furnaces, cement rotary furnaces, etc.

  • Good Quality Shape Refractory - Tundish Stopper – Topower

    Good Quality Shape Refractory - Tundish Stopper – Topower

    Description Tundish stopper is a refractory rod that is installed in the steel bucket to control the opening and closing of the nozzle and the flow of molten steel by lifting displacement, also known as pottery stopper. It is composed of rod core, sleeve brick and plug brick. The rod core is usually made of plain carbon steel round steel with a diameter of 30-60mm. The upper end is connected with the cross arm of the lifting mechanism by bolts, the lower end is connected with the plug br...
  • Manufacturing Companies for Chrome Magnesite Bricks - Silica Brick – Topower

    Manufacturing Companies for Chrome Magnesite Bricks - Silica Brick – Topower

    Description Silica brick is an acidic refractory material with good resistance to acid slag erosion. The softening temperature of the silica brick under load is as high as 1640~1670°C, the volume is relatively stable at high temperature, and it can be used for a long time. An acidic refractory material mainly composed of tridymite, cristobalite and a small amount of residual quartz and glass phase. The silicon dioxide content is above 94%, the true density is 2.35g/cm3, it has resistance...
  • Chinese wholesale Silica Brick - Fireclay Brick – Topower

    Chinese wholesale Silica Brick - Fireclay Brick – Topower

    Description Fireclay bricks are made of 50% soft clay and 50% hard clay clinker, which are batched according to certain particle size requirements. After molding and drying, they are fired at a high temperature of 1300~1400℃. Fireclay bricks are weakly acidic refractory products, which can resist the erosion of acidic slag and acid gas, and have a slightly weaker resistance to alkaline substances, good thermal performance, and resistance to rapid cold and heat Fireclay bricks are one of...
  • Best Price on Chromite Bricks - Zircon Nozzle – Topower

    Best Price on Chromite Bricks - Zircon Nozzle – Topower

    Description Zircon nozzle is made of high-temperature refractory materials, and can also be used to connect the process, which plays a great role in controlling the flow of molten steel. The zirconium sizing nozzle has good shock and heat resistance, very high stability, and has a certain anti-corrosion function. The zirconium sizing nozzle can effectively ensure the stability of molten steel inflow and ensure the normal processing of the processing procedure. The zirconium sizing nozzle...
  • High Quality Alumina Silica Refractory Brick - Magnesia Dolomite Brick – Topower

    High Quality Alumina Silica Refractory Brick - Magnesia Dolomite Brick – Topower

    Description Magnesia dolomite bricks are made of high-purity and dense magnesia and sintered magnesia dolomite sand or dolomite sand as raw materials. According to different use environments, select the appropriate ratio of MgO and CaO, use anhydrous binder, and form at a suitable temperature. , High temperature firing. Magnesia dolomite bricks have strong resistance to low iron and low alkalinity refining slag outside the furnace, and are beneficial to desulfurization and dephosphorizat...
  • Hot Selling for Dolomite Bricks - Magnesia Carbon Brick – Topower

    Hot Selling for Dolomite Bricks - Magnesia Carbon Brick – Topower

    Description Magnesia carbon bricks are made of high melting point alkaline oxide magnesium oxide (melting point 2800°C) and high melting point carbon materials that are difficult to be infiltrated by slag as raw materials, and various non-oxide additives are added. A non-burning composite refractory material combined with a carbon binder. The main raw material for the production of magnesia carbon bricks, the quality of magnesia has an extremely important influence on the performance of...
  • Factory Price Grade 28 Firebrick - Alumina bubble brick – Topower

    Factory Price Grade 28 Firebrick - Alumina bubble brick – Topower

    Description Alumina bubble brick is one of the ultra-high temperature material energy-saving insulation materials. It uses alumina hollow spheres as the main raw material and combines with other binders to fire alumina hollow spheres in a high temperature furnace at 1750℃. Alumina bubble brick has the characteristics of low thermal conductivity, good heat preservation, high compressive strength, and can work at temperatures below 1800°C. It has excellent heat resistance and heat insulati...