Breakthrough in Silicon Carbide and Alumina Powder Granulation Technology: Precision Granulators Drive New Material Upgrades

In the precise world of modern materials science, a tiny particle of powder is unlocking immense possibilities for industrial progress.

AKW's advanced granulation equipment can produce high-quality spherical particles of silicon carbide and alumina powder with a uniform particle size meeting the 100-mesh requirement.

These precision-manufactured particles exhibit superior flowability, compressibility, and sintering performance, providing crucial material support for fields such as electronic ceramics, aerospace, and new energy.

Silicon carbide and alumina, as high-performance ceramic materials, are highly favored in various industrial sectors due to their excellent mechanical strength, high-temperature resistance, and wear resistance. However, processing these two ultrafine powders into spherical particles meeting specific particle size requirements presents numerous technical challenges.

Traditional granulation methods often struggle to simultaneously control particle size distribution, sphericity, and flowability—all critical factors affecting subsequent molding and sintering quality.

In high-end applications such as electronic ceramic substrates, carbon-ceramic brake discs, and aerospace components, even minute particle inhomogeneities can lead to significant performance degradation.

Especially for the reuse of silicon carbide micropowder, research shows that effective particle re-aggregation requires the use of binders such as water glass or silica-alumina sol for mixing, granulation, and sintering.

Pelletizing Innovation

To address these challenges, technological advancements in precision granulation equipment offer solutions. AKW has developed an intensive mixer specifically designed for the particle size distribution requirements of special materials such as electronic ceramics, alumina, zirconium oxide, and silicon carbide.

This equipment employs a three-dimensional countercurrent principle, with a granulation disc rotation speed ranging from 0 to 18,000 rpm, and is equipped with variable frequency speed control, enabling precise control of particle size distribution to conform to specific distribution curves.

Regarding the control of granulation process parameters, researchers have found that the choice and concentration of binders significantly affect the re-granulation effect of silicon carbide micropowder.

With the continuous advancement of granulation technology, the application fields of silicon carbide and alumina composite particles are rapidly expanding.

The application of granulation technology in high-end composite material preparation is evident in materials such as carbon-ceramic brake discs, carbon-ceramic hot zones, ultra-tough alumina powder, and high-purity silicon carbide powder.

These materials not only offer significant performance advantages but also possess mature industrialization capabilities, providing crucial material support for strategic emerging fields such as aerospace, low-altitude economy, rail transportation, and defense equipment.

With continuous advancements in granulation technology, the application boundaries of silicon carbide and alumina composite materials are constantly expanding. From heat-resistant components in aerospace vehicles to ceramic substrates in everyday electronic devices, from braking systems in new energy vehicles to key materials for third-generation semiconductors—these micron-sized spherical particles are supporting the backbone of modern industry.

Precision granulators are no longer merely processing tools but also key keys to overcoming material bottlenecks and unlocking future applications.