Magnesia Carbon 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.

  • Magnesia Dolomite Brick

    Magnesia Dolomite Brick

    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 dephosphorization to remove impurities in steel, and have the effect of purifying molten steel. Used in cement kilns, magnesia dolomite bricks have a great affinity with cement clinker, are easy to hang on the kiln, and have uniform thickness.

  • Magnesia Hercynite Brick

    Magnesia Hercynite Brick

    Magnesia hercynite bricks have the advantages of chromium-free environmental protection, good thermal shock stability, good kiln skin hanging ability, good corrosion resistance, low thermal expansion and low thermal conductivity, and better structural flexibility. In practical applications, the brick has a service life of more than 1 year, the kiln skin is hung quickly in the firing zone, the thickness of the kiln skin is uniform and stable, the refractory bricks have no large flaking phenomenon, and there is no flaking phenomenon of refractory bricks when the kiln is stopped. The temperature of the kiln barrel is low, and the heat energy less loss.

  • Magnesia Spinel Brick

    Magnesia Spinel Brick

    Magnesia spinel bricks use high-purity magnesia and magnesia alumina spinel as the main raw materials. The firing temperature and firing atmosphere are strictly controlled to make it have good flexibility and thermal shock stability, kiln skin performance and corrosion resistance The performance exceeds that of high-quality magnesia chrome bricks.

  • Magnesia Carbon Brick

    Magnesia Carbon Brick

    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 magnesia carbon bricks. The purity of magnesia has a significant impact on the slag resistance of magnesia carbon bricks. The higher the magnesium oxide content, the lower the relative impurities, the lower the degree of silicate phase separation, the higher the degree of direct bonding of periclase, and the higher resistance to slag penetration and slag melting loss. The impurities in magnesia mainly include calcium oxide, silicon dioxide, and iron oxide. If the content of impurities is high, especially boron oxide compounds, it will adversely affect the refractoriness and high temperature performance of magnesia.

  • 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.

  • Magnesia Chrome Brick

    Magnesia Chrome Brick

    Magnesia chrome brick is made of high-grade magnesite clinker and chromium oxide as raw materials, through high-pressure molding and high-temperature firing, the maximum allowable ambient temperature is 1700°C. Magnesia chrome brick has good heat peeling resistance, high alkali corrosion resistance and high thermal shock resistance characteristics, and it is environmentally friendly and has a long service life.

  • Magnesia Brick

    Magnesia Brick

    The magnesium oxide content of magnesia brick is 90%-98%. Magnesia brick has good fire resistance and corrosion resistance. It uses magnesium oxide or fused magnesia as raw materials and is fired at a high temperature of 15501600°C. It is the firing of high purity products. The temperature is above 1750℃. They are corrosion resistant and are widely used in various high temperature furnaces.

  • 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.

  • 2021 Good Quality High Alumina Brick - insulation firebrick – Topower

    2021 Good Quality High Alumina Brick - insulation firebrick – Topower

    Description The density of insulation firebrick is 0.60~1.25g/cm3, and the working temperature is 900°C to 1600°C. Insulation firebrick can reduce the cost of the foundation, reduce the cross-section of the frame, and save reinforced concrete can significantly save the comprehensive cost of the building. Compared with solid clay bricks, the overall cost of using lightweight bricks can be reduced by more than 5%. Lightweight bricks have good work ability and are easy to construct. Feat...