Impermeable brick
- Description
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High strength impermeable brick is a kind of high performance refractory material specially used for the lining of aluminum electrolyzer. It has the characteristics of high strength, permeability resistance, erosion resistance and high temperature resistance, which can effectively protect the inner wall of aluminum electrolyzer and extend its service life.
As an aluminum electrolyzer blocking layer, it can prevent Na, NaF and crolyte melt from further penetrating into the thermal insulation layer, prevent the protective layer from being eroded, make its thermal insulation ability lasting, so as to protect the normal use of the electrolyzer and improve the service life of the aluminum electrolyzer.
1. High strength: high strength impermeable brick of aluminum electrolytic cell is made of high quality raw materials and fired at high temperature. It has high strength and can withstand high temperature and high pressure generated in the process of aluminum electrolysis to ensure the stability of the electrolytic cell.
2. Permeability resistance: aluminum electrolytic cell high-strength impermeable brick has good permeability resistance, can effectively prevent electrolyte erosion of electrolytic cell wall, reduce electrolyte loss, improve electrolytic efficiency.
3. Corrosion resistance: aluminum electrolytic cell high-strength impermeable brick has high corrosion resistance, can resist electrolyte erosion under high temperature and high pressure environment, extend the service life of the electrolytic cell.
4. High temperature resistance: aluminum electrolytic cell high-strength impermeable brick has a high melting point, can maintain stability in high temperature environment, will not be deformed or damaged because of temperature changes.
5. Good wear resistance: aluminum electrolytic cell high-strength impermeable brick has good wear resistance, which can keep the surface smooth during long-term use and reduce the number of maintenance.
General Properties
Standard Chemical Analysis Al2O3 ≥30% SiO2+SiC ≥70% Physical Properties
Item Unit Standard Apparent Porosity % ≤20 Bulk Density g/cm³ ≥2.0 Cold Crushing Strength MPa ≥35 Refractoriness Under load T0.6
℃ ≥1380
Keywords：
Impermeable brick
Nonferrous
Refractory materials
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