Alumina Grinding Beads

The quality of alumina grinding beads depends on the control of raw materials and production processes. We strictly control the quality from the source to the finished product throughout the entire process to ensure stable performance of each batch of products.
Raw material pretreatment: Ultra fine high-purity alumina powder is selected, and after entering the factory, it is screened to remove impurities, tested for purity, and the particle size of the powder is strictly controlled.
Ingredient mixing: Mix raw materials and additives according to different purity ratios, accurately control mixing time, and ensure uniform distribution of raw materials without clumping.
Roll forming: Using roll forming and mechanical pressing processes, the roundness of the bead body is strictly controlled to ensure a smooth and spherical surface of the finished product.
Low temperature drying: constant temperature gradient drying, slowly removing moisture from the billet to avoid cracking and deformation during high-temperature sintering.
High temperature sintering: Adjust the sintering temperature (1400 ℃ -1600 ℃) according to the purity, and perform insulation sintering to make the bead structure completely dense.
Screening and polishing: Precision equipment grading particle size, slight polishing to remove burrs, full inspection to remove broken and deformed beads. 

1. Mining industry: suitable for grinding non-metallic minerals such as kaolin, calcium carbonate, silicon dioxide, zirconium silicate, as well as metal minerals such as gold, silver, nickel, zinc, and lead.
2. Paint pigments: used for grinding and dispersing water-based and oil-based coatings, pigments, and dyes, improving the fineness and uniformity of coatings, enhancing pigment color and adhesion, without color mixing or pollution.
3. Chemical industry: In the chemical industry, alumina grinding beads are used as catalyst carriers and fillers to improve the efficiency and selectivity of chemical reactions. Aluminum oxide balls with different aluminum contents (such as 17-20%, 45% -70%, 90% -99%) have different temperature resistance and strength, and are suitable for different chemical processes.
4. Ceramic industry: Grinding ceramic raw materials and glazes, refining powder particle size, high hardness and wear resistance significantly improve grinding efficiency, while ensuring the quality of finished ceramics. In addition, the strong corrosion resistance of alumina grinding balls to acid and alkali ensures that ceramic raw materials will not be contaminated during the grinding process.