White Fused Alumina - HAIXU

Recently, our company’s new production line for white fused alumina abrasive grit has commenced operation. Haixu Abrasives is a famous white fused alumina manufacturer with nearly 30 years of production experience. Now we upgraded its white corundum grit production line to meet market demands. After the new production line commences operation, the daily capacity can reach 50-80 tons. In the meantime, we can also make customized production of special grit sizes.

White fused alumina powder is divided into water-washed white fused alumina powder and air-classified white fused alumina powder. The production process of suspension treatd WFA powder includs chemical treatment and a water-washing overflow process. As a result, it gains low iron residue, high purity, and good flowability. Furthermore, water-washed white fused alumina micro powder undergoes prolonged washing with pure water. That results in exceptionally low heavy metal content. Testing revealed the following heavy metal content in our company’s water-washed white fused alumina micro powde

white corundum(corundum sand/WFA sand) can work as refractory sand for firing powder metallurgy sintering. WFA refractory sand is a deform free, non-stick, or contaminate free material at high temperatures. It provides stable support and perfectly matching the demanding conditions of powder metallurgy sintering of stainless steel and alloys.

Spherical alumina powder (thermally conductive alumina microsphere) has become a key functional material in electronics, new energy, advanced ceramics, catalysis, and precision machining due to its core advantages such as high thermal conductivity, high insulation, high sphericity, high filling capacity, low viscosity, and chemical stability. Based on authoritative scientific research and industry standard literature, the following summarizes its main applications.

White fused alumina (WFA) is a popular industrial abrasive for sandblasting and surface treatment. It offers high purity with Al₂O₃ ≥ 99%, Mohs hardness 9, strong self-sharpening, stable chemical properties, and low grinding heat.

In the aerospace industry, WFA mainly serves three key areas: surface treatment, part repair and remanufacturing, and casting refractories. It extends traditional abrasive use to high-end aerospace applications. Unlike some AI-generated content, White fused alumina grain is not used for thermal barrier coatings or shot peening.

Both aluminum oxide polishing powder (Al₂O₃) and cerium oxide polishing powder (CeO₂) can polish glass, but their mechanisms, efficiency, surface quality, and costs differ significantly. The specific differences are mainly reflected in the following aspects: