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目前显示的是标签为“fire bricks”的博文

The application of fused zirconia corundum brick

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Fused zirconia corundum brick is also called AZS, which is abbreviation of zirconia corundum brick . The zirconia corundum is kind of white solid, made by pure aluminum oxide, 65% purity zirconium oxide and silicon dioxide 34% purity, cooled in the model after melting into the electric melting furnace. Its petrographic structure is consisted of zirconium corundum and plagioclase eutectoid and glass phase. From the phase of speaking, it is eutectoid phase zirconium corundum and oblique stone body. The glass phase is filled between their crystals. Fused zirconia corundum brick is mainly used in glass industry kiln. Wanhao is a manufacturer who is specialized in designing various kinds of furnace and making refractory products for electric furnace, ladle, tundish, blast furnace, AOD furnace, IF furnace, etc. Article Source: The application of fused zirconia corundum brick Company name: Wanhao Refractory Email:sales100@wanhaorefractory.com Website: http://www.wanhaor...

The main factors affect the performance of magnesia carbon bricks

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The main factors affect the performance of magnesia-calcium brick include MgO / CaO ratio, chemical purity and density etc. The MgO / CaO ratio of magnesia-calcium brick can increase high temperature resistance, chemical erosion resistance of slag,high temperature corrosion resistance and hydration resistance. But it will decrease the magnesia-calcium brick ’s spalling resistance, resistance to the slag penetration and molten steel purification performance. Adding some additives in the production of magnesia-calcium brick can improve some performances of the magnesia-calcium brick . Add appropriate amount of ZrO2 can improve the performance of spalling resistance,  high temperature corrosion resistance and hydration resistance of the magnesia-calcium bricks . ZrO2 is called the “multi-functional” additives of magnesia-calcium brick . At abroad, eye bricks of AOD furnace generally use high-purity, high density sintered magnesia dolomite brick with 1% content of Zr...

The application of unfired brick

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The unfired brick is a kind of refractory which is can directly used for constructiion use without adobe firing. Its production process is very simple. It is made by different refractory material after resonable gradation,then bonded with organic or inorganic cementing agent that has strong binding capacity. The main type of unfired brick (1) High alumina brick with the combination of aluminate cement  (2) Clay brick Combined with Portland cement (3) High alumina bricks with the combination of industrial phosphoric acid and aluminium phosphate (4) High alumina brick with sulfate binding (5) Ordinary brick with water glass combination (6) Magnesia brick with combination of magnesium chloride and Magnesium Sulfate. The advantage of unfired brick is good shock resistance. The defect is lower high temperature crushing strength than fired brick. So it can’t be used in the load-bearing part. Wanhao Refractory is a manufacturer who is specialized in designing vario...

The application of high alumina brick

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High alumina brick is a kind of refractory , whose main component is Al2O3. For example, Al2O3 is high than 90$, called as corundom brick. Because of different resources, different countries have different standards. For example, European countries regulate that the lowest limit of Al2O3 is 42%. And in China, high alumina brick is divided into three classes based on Al2O3 component. Ⅰclass──Al2O3 >75%;Ⅱclass──Al2O3 is about 60~75%;Ⅲ class──Al2O3 is about 48~60%. Mainly used for masonry blast furnace, hot stove, furnace top, blast furnace, reverberatory furnace, rotary kiln lining. In addition, high alumina brick is also widely used as open hearth regenerative checker bricks, gating system with plug head, outlet brick. But the price of high-alumina brick clay brick than high, so with clay brick to meet the requirements of the place do not have to use high-alumina brick. Article Source:  The application of high alumina brick Company name: Luoyang Wan...