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目前显示的是 二月, 2026的博文

High-Efficiency and Powerful Adsorption Activated Alumina Ceramic Balls

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Activated alumina ceramic balls are a porous, highly dispersed solid material, primarily composed of transitional alumina phases (such as γ -Al2O3). They are produced through specific thermal activation processes using industrial aluminum hydroxide or aluminum salts as raw materials. Their internal structure features a developed pore network, resulting in a high specific surface area, while their surface properties exhibit high reactivity and excellent adsorption capacity. Typical physical characteristics include a porosity of approximately 45%-55%, a specific surface area usually between 200-360 m ² /g, and a bulk density ranging from 0.68 to 0.85 g/cm ³ . They possess high mechanical strength, good abrasion resistance, and strong chemical stability, maintaining structural integrity under various pH conditions and at elevated temperatures. This material finds extensive application in fields such as petrochemicals, chemical engineering, gas separation and purification, environmental pr...

Alumina Ceramic Liners: A Reliable Anti-Wear Solution for Mill Equipment

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Alumina ceramic liners are industrial ceramic products primarily made from high-purity alumina (Al ₂ O ₃ ) and sintered at high temperatures. They possess a Mohs hardness of up to 9 (second only to diamond), a Rockwell hardness (HRA) of ≥ 85, and a typical bulk density exceeding 3.6 g/cm ³ . This material offers exceptional wear resistance, good corrosion resistance, and excellent impact resistance, effectively protecting against severe abrasion and impact generated during material grinding and transportation. In mill equipment, they are primarily applied to key wear-prone areas such as cylinder shells, chutes, pipelines, and fan blades as protective layers to extend the service life of the main equipment. In practical applications, alumina ceramic liners are primarily fixed to the substrate surface of equipment via adhesive bonding or mechanical inlaying. Their extremely low coefficient of friction facilitates material flow, reducing blockages and energy consumption. Compared to trad...