Argillaceous brick is the argillaceous simple product that shows Al203 content is aluminous material of 30% one 40% silicon acid. Argillaceous brick is to use the soft qualitative clay of 50% and grog of 50% horniness clay,
By certain size the requirement has burden, via shaping, dry hind, firing below the high temperature of 1300-1400 ℃ . The mineral composition of argillaceous brick basically is kaolinite is mixed the 6% one impurity of 7% (the oxide) of potassium, natrium, calcic, iron, iron. Of argillaceous brick firing process, advocate the course that if kaolinite breaks moisture solution ceaselessly,builds Molaishi to crystallize. The Si02 in argillaceous brick and Al203 are in firing form with foreign matter in the process in all the silicate of brilliant low melting point, surround what crystallize in Molaishi all round. Argillaceous brick belongs to weak acidity and refractory products, can counteractive acidity is slaggy with acidity gas erode, a bit poor to the counteractive ability of basic material. The hot performance of argillaceous brick is good, be able to bear or endure urgent cold urgent heat. Of argillaceous brick fireproof degree be about the same with silica brick, be as high as 1690-1730 ℃ , but loading bate temperature is lower than silica brick however 200 ℃ above. Because be divided in argillaceous brick,contain tall fireproof outside spent Mo Laishi crystallization, still contain the photograph of glass of noncrystalline of low melting point that approachs an in part. Inside the temperature limits of 0-1000 ℃ , the bulk of argillaceous brick lifts as temperature and expand equably, linear expansion curve is approximate at linear, linear expansion rate is 0.6%-0.7% , only the half of silica brick is controlled. When after temperature amounts to 1200 ℃ , continueing to warm up again, its bulk will by expand great value begins systole. The leftover systole of argillaceous brick brings about the pine that ash of body of build by laying bricks or stones seams to crack, this is the one big drawback of argillaceous brick. After temperature exceeds 1200 ℃ , the content of low melting point in argillaceous brick fuses gradually, because grain suffers exterior tension to make,lean very closely each other, produce bulk systole thereby.
Zhengzhou flourish fills fireproof material to regard manufacturer of the adventitious of high quality fireproof material as the home, have rich manufacturing experience and practice base, stand in the forward position that the industry expands from beginning to end, pay attention to innovation of science and technology, increase the development strength to new product ceaselessly, in ensuring flourish fills material to be able to apply to more furnace kiln projects, bring good news for more projects.
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