High alumina brick users have questions about whether high alumina bricks can be drenched in water. Can high alumina bricks be used after soaking in water? High alumina bricks are a kind of refractory materials, and the main component of such high alumina bricks is Al2O3.
The production process of high alumina bricks and multi-clinker clay bricks are similar. The difference is that the proportion of clinker in the ingredients is higher, which can be as high as 90-95%. The clinker needs to be sorted and sieved to remove iron before crushing, and the firing temperature Higher, such as Ⅰ, Ⅱ high alumina bricks are generally 1500～1600℃ when they are fired in a tunnel kiln.
So soaking in water will not have any effect on its appearance, but it can affect the interior of the high alumina brick, and some changes may occur during the soaking process, which affects our use.
Although that is said, the essence depends on its material composition. For alkaline clay refractory bricks, especially magnesia-calcium bricks, they cannot be exposed to damp water, otherwise they are easily hydrated and scrapped, because calcium oxide reacts with water at room temperature and pressure. The reaction becomes calcium hydroxide. For magnesia-chromium bricks, there is no covalent bond between the crystals of this high alumina brick, and there will be no liquid phase reaction. It is very stable under normal temperature and pressure, so it is not afraid of water drenching. In comparison, most pure non-metal compounds are not afraid of water after being fired at high temperature. Therefore, there is no need to worry about the high alumina bricks that have undergone a heat treatment.
Whether the high alumina brick will be affected after being soaked in water has a lot to do with our production and the choice of raw materials. The choice of high alumina brick should be considered from the aspects of its material, whether it has been heat treated in its production process, etc. select.
