Applications

• Industrial Processing

• Grinding and Polishing: Widely used for fine grinding, lapping, polishing, and super-polishing of high-hardness, brittle non-metallic materials such as cemented carbide, ceramics, glass, and crystals. It also works on metal materials, achieving an extremely high surface finish.

• Abrasive Tool Manufacturing: Used to produce resin-bonded, ceramic-bonded, and electroplated abrasive tools (e.g., diamond powder grinding wheels, pastes), which are efficient and wear-resistant in cutting and grinding.

• Cutting Tools: As a key raw material for polycrystalline diamond sintered bodies and other diamond products (e.g., geological drill bits, oil drill cutting tools, wire-drawing dies), it significantly enhances tool hardness and wear resistance.

• Jewelry Making: Used in diamond inlays and diamond paintings. Diamond powder fills gaps in jewelry to enhance luster and elegance, or forms a diamond powder coating for unique surface effects.

• High-Tech Fields

• Electronic Device Heat Dissipation: Due to diamond's excellent thermal conductivity, diamond powder is used in high-performance heat-dissipating materials to improve electronic device performance and stability.

• Optical Instruments: Used to grind and polish optical lenses, ensuring high precision and finish for improved imaging quality.

• Sensors: Applied in manufacturing high-performance sensors (e.g., pressure, temperature sensors) to enhance sensitivity and stability.

• Other Fields: Nano-scale diamond powder is used in oral care products (e.g., toothpaste) for deep cleaning, gentle whitening, and safe enamel protection.

Specifications

Diamond powder is typically classified by particle size, with common specifications including W0.5 (10,000 mesh), W1 (8,000 mesh), W1.5 (5,000 mesh), W2.5 (4,000 mesh), W3 (3,000 mesh), W3.5 (2,500 mesh), W5 (2,000 mesh), W7 (1,500 mesh), W10 (1,000 mesh), W14 (800 mesh), W20 (600 mesh), W28 (400 mesh), and W40 (320 mesh). Smaller numbers indicate finer pastes, suitable for precision polishing; larger numbers indicate coarser pastes, ideal for rough grinding and initial processing.

Characteristics

• High Hardness: Diamond is the hardest substance in nature, and diamond powder retains this property with a Mohs hardness of 10, enabling it to easily grind and polish materials with lower hardness.

• High Wear Resistance: During grinding and polishing, diamond powder maintains its shape and size well, resisting wear and ensuring processing precision and efficiency.

• Good Chemical Stability: Under normal temperature and pressure, diamond powder does not react with most chemicals, boasting strong corrosion resistance and suitability for use in harsh chemical environments.

• High Melting Point: Inheriting diamond's extremely high melting point, diamond powder remains stable even in high-temperature environments.