博文

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The application of alumina ceramic packing balls

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Inert alumina ceramic balls are versatile industrial materials composed primarily of aluminum oxide (Al₂O₃), with content ranging from 17% to 99.5%. Based on composition and structure, they are mainly categorized into packing balls and grinding balls. Inert ceramic balls include ordinary ceramic balls, inert alumina ceramic balls, medium-alumina balls, and high-alumina balls, widely used in petroleum, chemical, fertilizer, natural gas, and environmental protection industries as covering support materials for catalysts in reactors and tower packing. Grinding balls serve as grinding media in fine crushing equipment like ball mills. These balls are manufactured through high-temperature sintering processes, exhibiting characteristics of high temperature and pressure resistance, strong chemical stability, and low water absorption, enabling them to withstand corrosion from acids, alkalis, other organic solvents, and adapt to temperature variations during production. The performance of Inert...

99% Alumina Bulletproof Ceramics: An Analysis of High-Performance Protective Materials

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99% alumina bulletproof ceramic is a high-performance protective material widely used in personal bulletproof equipment, vehicle armor, and aviation protection systems due to its exceptional hardness and energy dispersion capabilities. Classified under the standard alumina ceramic series (with Al2O3 content ranging from 98% to 99.7%), this material is an ideal choice for ballistic protection because of its high melting point, high hardness, and excellent mechanical properties. Material Properties and Ballistic Mechanism: 99% alumina ceramic boasts high hardness (Mohs hardness 9) and density (≥3.9 g/cm³), enabling it to effectively blunt or destroy incoming projectiles. Upon projectile impact, the ceramic fractures and comminutes, absorbing the projectile's kinetic energy and dispersing the impact force over a larger area. Research indicates that higher purity alumina ceramics (99.5%) exhibit superior ballistic performance, with a higher ballistic efficiency factor compared to 95% a...

Technical Analysis of the Ceramic-Rubber-Steel Triple-Composite Wear Liner

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The Wear-Resistant Ceramic-Rubber-Steel Triple-Composite Wear Liner is a high-performance composite material engineered through vulcanization to integrate the high hardness of alumina ceramic, the high elasticity of rubber, and the mechanical strength of steel into a unified structure. Its design enables synergistic protection: the ceramic layer resists abrasion, the rubber layer absorbs impact energy, and the steel plate provides structural support and easy installation. The typical manufacturing process involves pre-bonding ceramic blocks (Al₂O₃ content ≥95%) to a rubber layer using high-strength adhesive, followed by vulcanization with a steel plate under high temperature and pressure, ensuring an interlayer peel strength ≥30 N/mm². This material is designed for severe abrasion and high-impact conditions, such as material handling systems in mining, power, and metallurgical industries. The liner's performance is defined by precise metrics of each component. The ceramic layer typ...