Magnesia zirconia brick
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Magnesium zirconium brick is a kind of magnesia composite refractory made of magnesia and zirconium as the main raw materials. The main chemical components are MgO, ZrO2 and SiO2.The main mineral composition is calcite, magnesium olivine and plagic zircon
During sintering, zirconite in the matrix reacts with coarse magnesium oxide particles to form magnesium olivine and plagioclase zircon (ZrO2) surrounding the magnesium oxide particles, protecting the magnesium oxide particles from erosion.Due to the difference of thermal expansion between zrO2 and zrO2, fine cracks are formed inside the brick, which can disperse the stress.Therefore, magnesia-zirconium brick has good thermal shock stability and good corrosion resistance to metal oxides and sulfides.
Magnesium zirconium brick is mainly used in the upper and middle part of the regenerative chamber of glass kiln, and its service life is much higher than that of burnt magnesia brick, and its service life can reach more than 6 years in the kiln producing sodium-calcium glass.
Physical properties and chemical compositions
Item | Magnesia-Zircon Brick | ||
TY-MZ8 | TY-MZ10 | TY-MZ13 | |
MgO% ≥ | 80 | 75 | 70 |
ZrO2 %≥ | 8 | 10 | 13 |
Apparent Porosity%≤ | 19 | 18 | 18 |
Bulk Density (g/cm3)≥ | 3.95 | 3.00 | 3.05 |
Cold Crushing Strength (MPa)≥ | 50 | 45 | 40 |
Refractoriness Under Load°C≥ | 1600 | 1550 | 1600 |
Thermal Shock Resistance(950-wind cold)≥ | 10 | 10 | 10 |
Production capacity: Our factory actively response to government environmental protection policy, we designed and built the fully automatic controlled high temperature gas tunnel kiln (1700℃), and got capacity of annual output 70,000 tons of high quality refractory products.
Packing details:
★Bricks: Fumigated wooden pallet with log paperboard covered and stainless steel band strapping, the whole outside is wrapped with thermoplastic film. Or carton packaging.
★Wooden pallet size: usually 92*92cm (standard brick)
★Castable: Ton bag with rain film and 25kg bags inside
★Or according to customer’s requirements
Transportation
★Port of dispatch: Tianjin port; Qingdao port
★Delivery time: According to customer’s demand or two sides negotiate
We provide you
★Timely response: Timely response to your inquiry within 24 hours and provide solution.
★Competitive Price: Make the products competitive in your market.
★Free sample: Free sample are offered, trial order are accepted for quality evaluation.
★Strict quality control: We set Quality Management System, from the raw material to finished products, produce high quality products according to chemical & physical specifications strictly to satisfy customers’ needs.
★Fast delivery time: Within 3-30 days according to your quantity after receiving your advance payment.
★ Professional services: Provide pictures from order to delivery. Inspect report by our country’s designated authority and oversea services if necessary.
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Certification: (ISO 9001:2015)
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