What is Platelet Calcined Alumina？
Platelet Calcined Alumina is made of high-quality industrial alumina powder as raw material, and processed by a special production process. The crystal shape of the produced alumina polishing powder is hexagonal flat like tabular shape, so it is called Platelet Alumina or Tabular Alumina.
The alumina purity of the plate alumina is more than 99%, and it has the characteristics of heat resistance, acid and alkali corrosion resistance and high hardness. Different from the traditional abrasive spherical particles, the bottom surface of the flat alumina is flat, and the particles fit the surface of the workpiece during grinding, which produces a sliding grinding effect, which avoids the sharp corners of the particles from scratching the surface of the workpiece. On the other hand, the plate alumina in grinding, the grinding pressure is evenly distributed on the surface of the particles, the particles are not easily broken, and the wear resistance is improved, thereby improving the grinding efficiency and surface finish.
