Anti Corrosive Of Fused Cast AZS Brick
2015-07-14
Anti-corrosive property of fused cast azs brick means the ability to resist various kinds of corrosive medium corrosion and erosion under high temperature, such as slag, fuel, glass melting liquid, acid, alkali, electrolyte liquid and gaseous substances. Anti-corrosive property is a very important index to measure the chemical corrosion and mechanical wear of fused cast azs brick, so it has important meaning for choosing proper production process.
There are many kinds of factors that can affect the anti-corrosive property of fused cast azs brick, explaining from the following several aspects for your reference.
1. The chemical and mineral composition: the different chemical composition of a refractory brick is, the different ability of anti-corrosive property is, the acid resistant brick has good corrosion resistance to acid corrosion medium, and alkaline refractory brick is very weak to against acidic corrosive medium corrosion. The refractory brick is a group of multi - gathering which is composed of main crystal phase and matrix. High refractoriness, large grains, and less grain boundaries of Main crystal phase is, relatively better corrosion resistance is; if the impurity content is high in the matrix, it is easy to form a liquid phase, if the liquid phase viscosity is low, the corrosion resistance is poor.
2. The bulk density, apparent porosity, thermal shock resistance, oxidation resistance: refractory brick of high bulk density and low porosity is more corrosive than relatively loose brick; A refractory brick with bad thermal shock resistance will appear crack when thermal shock time, so that the corrosion medium will get into the interior of the refractory brick, resulting in the corrosion resistance drop. Carbon refractory brick with poor antioxidant will loose its layout and fall easy after the surface being oxidation, then corrosion resistance will decrease.
3. Corrosive medium: Mainly refers to the chemical composition of the corrosive medium, pH, viscosity, medium temperature, activity speed (static or dynamic), etc.
4. Application conditions: Mainly contains temperature and shake the situation, pressure, atmosphere, touching moment and area. The temperature is high, the shake is big, the pressure is big, the air is corrosive, the touch is long and the area is big, the corrosion of the material is more severe.
In a word, the factor affect the corrosion resistance factor of a refractory brick is complicated; it is also adaptive to fused cast azs brick.
Zhengzhou Sunrise Refractory Co., Ltd can provide fused cast azs brick which have passed the ISO international certified. With reliable quality, competitive price and prompt delivery, Sunrise has established long-term business and cooperation relationship with many customers in different countries and regions. For any further information, Contact us, Sunrise are sincerely looking forward to establishing a long-term mutually beneficial relationship with you.
