Product detail
SiC Mullite Brick
Product Parameters
Silicon – Mullite Refractory Brick Product Introduction
Manufacturing Materials and Process
Silicon – mullite refractory bricks use ordinary andalusite, silicon carbide micropowder, and industrial alumina as core raw materials. Ordinary andalusite transforms into mullite at high temperatures, endowing the brick body with high – temperature stability and mechanical strength. Silicon carbide micropowder improves wear resistance and thermal shock resistance, and industrial alumina enhances high – temperature resistance.
During production, weigh and proportion the raw materials accurately according to the pre – set formula to ensure consistent product composition. Then add binders like phenolic resin to bond the raw materials tightly and additives such as boric acid to promote sintering. Mix them well with efficient stirring equipment to form a uniform and stable mixture.
Next, pour the mixture into conventional molds and form it with friction brick presses or small hydraulic presses. Send the green bodies to a drying room, control the temperature and time strictly to remove moisture and prevent quality issues during subsequent sintering. Finally, sinter in a 1400℃ – 1500℃ high – temperature kiln, allowing the raw materials to react and form stable crystal – phase structures, endowing the product with reliable performance.
Product Features
Good Refractory Performance: The refractoriness is about 1650℃, remaining stable in certain high – temperature environments and meeting the needs of high – temperature equipment with lenient temperature requirements.
Certain Erosion Resistance: Resists medium – and low – temperature furnace slags and general corrosive gases, slowing equipment damage, extending service life, and reducing maintenance frequency.
Fair Thermal Shock Stability: Withstands a certain degree of temperature changes, maintaining structural integrity under non – severe temperature fluctuations and reducing thermal – shock damage.
Moderate Strength: Has moderate compressive and flexural strengths at medium – and high – temperatures, able to withstand furnace pressure and slight mechanical impacts, ensuring equipment structural safety.
Certain Wear Resistance: Due to silicon carbide micropowder, it can resist slight material scouring and friction, ensuring stable performance during long – term use and extending service life.
Main Application Areas
Non – critical Parts of Small – scale Cement Kilns: Such as pre – heaters and coolers, meeting medium – and low – temperature usage needs and helping enterprises control costs.
Ordinary Industrial Kilns: Suitable for small – scale ceramic and brick – tile kilns, able to withstand relatively low temperatures and less complex chemical erosion, providing an economical and practical fire – resistant solution.
Auxiliary Equipment in the Metallurgical Industry: Can be used in small – scale hot – air pipelines and flue ducts, exerting basic fire – resistant performance and ensuring normal metallurgical production.
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