Superfine powder product is a spherical micron alumina powder, with a high temperature, wear, corrosion resistance, high hardness, high insulation, high thermal conductivity and other properties. Spherical alumina with high purity, good appearance, good stability and narrow particle size distribution, with a minimum fill volume with a higher thermal conductivity and other characteristics of spherical alumina products are mainly used for electronic materials, thermal conductivity insulation materials, special ceramics and other fields. 
 1, the high filling 

 The high rate of spherical particles, particle size distribution width, they can be of rubber, plastic, high density padding, get low viscosity, good fluidity of the mixture. 

 2, thermal conductivity 

 Because of its high density can be filled, compared with the crystalline silicon can be obtained high thermal conductivity, heat dissipation and good mixture. 

 3, low wear 

 Because of their spherical appearance of mixing machines, molding machines and molds and other equipment greatly reduce wear, extend equipment life. 

 Use 

 (1) heat sink, cooling the substrate with a filler (MC substrate), thermal grease, phase change film 

 (2) semiconductor packaging resin filler 

 (3) silicone adhesive and heat the mixture with the filler 

 (4) ceramic filter 

 In the heat resistant filler, electronic ceramics, and polishing materials, high-grade abrasive, rare earth phosphor powder, high pressure sodium lamp, transparent ceramics, ceramic chip, ceramic fiber, synthetic gems, is widely used catalyst support and other fields, can be used as micro- hole ceramic, ceramic membrane materials, especially for rubber, plastic filler, with a low viscosity, good fluidity, high filling, low wear, high purity and other characteristics. 

 Main functions: polishing silicon wafers and alumina glass bulb Features: grains were spherical, narrow size distribution, easy to produce scratches. Product is pure α-Al2O3 phase, high hardness (Mohs hardness 9), and suspension stability, has good polishing properties. Purposes: (1) Electronic Materials Grinding: monocrystalline silicon wafers and other semiconductor materials, wafer grinding; (2) optical glass polishing: imaging bulb, computer hard drives, optical lens surface polishing. (3) Decoration Materials polishing: Suitable for high-grade stone, decorative materials, metal polishing. Alumina polishing abrasive characteristics: appearance white powder, particle size uniformity, chemical stability, good polishing performance. Uses: used as a mirror-polished stainless steel, wax, polishing fluid, or the aggregate polishing paste, and various high-grade polishing stone and other aggregates.