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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...
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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...
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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...
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How to Choose Alumina Ceramic Raschig Rings？

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Alumina ceramic Raschig rings are widely used as tower packing in chemical and environmental industries for efficient gas-liquid mass transfer and separation. Key selection criteria include alumina content, physical strength, dimensions, and operating conditions. Alumina content (typically 92%-99%) directly impacts corrosion resistance and thermal stability, with high-purity variants suitable for highly corrosive or high-temperature environments (up to 1500°C). Mechanically, compressive strength should exceed 250MPa to minimize breakage. Sizing should correspond to column diameter and operational gas velocity, with common diameters ranging from 25-100mm. Smaller sizes provide higher surface area for enhanced mass transfer but increase pressure drop. Practical selection requires comprehensive evaluation of process conditions. For acidic/alkaline environments, high-purity alumina (e.g., 99% Al₂O₃) ensures chemical inertness. Thermal shock resistance must be verified for high-temperature ...
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How to Choose Wear-Resistant Alumina Ceramic Lining Tiles

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When selecting wear-resistant alumina ceramic lining til es, key considerations include the material's physical properties, structural design, and suitability for working conditions. Alumina content is a critical indicator, typically requiring over 92% to ensure excellent hardness and wear resistance. Density should exceed 3.6 g/cm ³ , with Rockwell hardness not less than HRA85. For high-impact environments, models with alumina content above 95% are recommended, offering compressive strength over 850 MPa. Additionally, verify compliance with standards such as GB/T 5593 or ASTM C773 to guarantee performance reliability. The structural design and installation method directly affect service life. Monolithic lining plates suit flat surfaces, while mosaic-style small blocks adapt to curved equipment. Thickness selection depends on particle impact velocity: choose 15-20 mm for flows below 15 m/s, and 20-30 mm for velocities exceeding 30 m/s or with large material impact. The installation...
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A Guide to Selecting Plastic Tower Packings

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Plastic tower packings are core components in mass transfer equipment, widely used in chemical and environmental industries. Their primary function is to create efficient contact area between gas and liquid phases to enhance mass and heat transfer. Compared to metal or ceramic alternatives, plastic packings (such as PP, PE, and PVDF) offer advantages including light weight, corrosion resistance, and cost-effectiveness. This guide outlines the characteristics and applications of four common types: Pall Rings, Cascade mini   Rings, Polyhedral Hollow Ball a nd   Heilex Rings . Pall Rings feature windows and inward-directed tabs in their walls. This design optimizes gas paths and improves liquid distribution, providing a high specific surface area while significantly reducing pressure drop. Cascade mini Rings are an improved version of Pall Rings. Their height is typically only half their diameter, and they include a conical flange. This structure further minimizes gas flow resist...
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The structure of the ceramic-rubber three-in-one plate

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The ceramic-rubber three-in-one plate   consists of three layers in total: the ceramic layer, the rubber layer and the steel plate layer. Ceramic layer: Made of alumina ceramics. The ceramic is composed of imported high-quality powder and is produced through high-temperature firing to form special corundum ceramic, with a Mohs hardness of 9.   By adjusting the production formula and process, the alumina ceramics maintain high hardness and wear resistance while also having a certain impact resistance. Moreover, some ceramics adopt a unique spherical design, such as the 95 red alumina ceramic with a hemispherical protrusion. When impacted by large pieces of material, the spherical surface can disperse stress, reduce local stress concentration, and prevent the ceramic from breaking due to brittleness. Rubber layer: Usually made of highly elastic natural rubber or synthetic rubber with special properties. Rubber has excellent elasticity and deformation capacity. When subjected to ...
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