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The amount of water added to 5A molecular sieve depends on the moisture content of the product. Molecular sieves have a relatively high adsorption capacity, with a typical adsorption capacity of 22%.

There is a wide variety of alumina balls, and different types are applicable to distinct scenarios. For instance, activated alumina balls can serve as desiccants, while inert alumina balls are used as bedding and filling materials in hydrocracking refining equipment and catalytic reforming equipment. The Media Department of Moku Network will elaborate on alumina packing balls, a type of alumina ball.

Inert alumina balls possess the characteristics of high strength, high chemical stability, low water absorption, and thermal stability. They can resist high temperatures, high pressures, corrosion from acids, alkalis, salts, and various organic solvents, and can withstand temperature changes occurring during the production process. Widely used in petroleum, chemical, chemical fertilizer, natural gas, environmental protection and other industries, they serve as supporting and covering materials for catalysts in reactors. They can buffer the impact of liquids and gases entering the reactor on the catalyst, support and protect active catalysts with low strength, and improve the distribution of liquids and gases in the reactor.

In the development and application of engineering ceramic products, ceramic ball bearings stand out as a typical example of the widespread industrial application of engineering ceramics, attracting great attention from many countries. In high-speed precision bearings, hybrid ceramic ball bearings are the most widely used type—their rolling elements are hot-pressed silicon nitride (Si₃N₄) ceramic balls, while the bearing rings remain made of steel. These bearings feature a high degree of standardization, require minimal modifications to machine tool structures, and facilitate easy maintenance, making them particularly suitable for high-speed operation scenarios. High-speed electric spindles assembled with such bearings offer advantages including high rotational speed, high rigidity, high power output, and long service life.

Zirconia balls have higher density and hardness compared with other abrasives. Moreover, zirconia balls vary in chemical composition, which leads to differences in their density and hardness. Below, Sainuo Zirconia Beads will discuss the density and hardness parameters of zirconia balls with you.

Common dental crowns are ceramic crowns made from zirconium powder, which shares the same raw material as zirconium beads. The sintering of dental crowns is typically carried out in a sintering furnace—a sealed unit classified as a small-scale laboratory furnace. 

The performance of alumina grinding balls is determined by their alumina content (purity). Different purity levels correspond to different application scenarios, and their suitability for ultra-fine grinding is also classified accordingly. 

Zirconium silicate beads are a specialized material composed of zirconium silicate (ZrSiO₄), alumina, and silica, with a specific gravity of approximately 4.1, a bulk density of 2.4, and a Vickers hardness of up to 1000. With a zirconia content of around 65%, they are also known as 65% zirconia beads and classified as a variant of zirconia-based grinding media. The primary advantage of zirconium silicate beads lies in their uniform and dense internal structure. Fabricated via specialized manufacturing processes, they feature an exceptionally homogeneous and compact internal matrix, which ensures consistent quality of the ground materials.

Zirconia beads are predominantly composed of zirconia, with specific types varying by composition—including yttria-stabilized zirconia beads, ceria-stabilized zirconia beads, and composite zirconia beads.

1. Check Wear Rate

 It reflects the quality of zirconia beads or results of actual wear tests. Each batch of products must pass quality inspection.

Zirconia beads can not only be used for grinding and dispersing material slurries and powders but also as polishing abrasives in vibratory finishing machines, mainly for mirror polishing to achieve a bright and glossy finish on workpieces.

Zirconia ceramic balls require a smooth and glossy surface. The smoother the surface of the media, the lower the wear rate. The factor determining whether the surface of zirconia beads has a glossy finish is the smoothness of the spherical surface; a smooth spherical surface yields an excellent mirror effect, while a rough one results in a poor mirror effect.