Tungsten Powder

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Fine Particle Tungsten Carbide Powder 386

Fine particle tungsten carbide powder has smaller particle size, high specific surface area and good catalytic activity. It can replace precious metal as catalyst, but also can be used as raw material for the production of tungsten carbide. Particle The main influencing factors of fine particle tungsten carbide powder are the particle size and the composition of the tungsten powder. Due to the carbonization process is mainly achieved by the reaction of the surface of the tungsten powder particles with…

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Nanometer Tungsten Carbide Powder 359

Nanometer tungsten carbide powder is a kind of tungsten carbide powder with a particle size <100nm, which has the properties of the abnormal tungsten carbide powder. It can make the tungsten carbide with more excellent properties. Particle When the particle size of the tungsten carbide powder varies greatly, the characteristic of the powder is obviously different. Especially when the particle size reaches the nanometer level, it often shows the abnormal performance of the conventional tungsten carbide powder. Applications Nanometer tungsten…

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Ultrafine Tungsten Carbide Powder 381

Ultrafine tungsten carbide powder is tungsten carbide powder with particle size ≤0.5μm. It is the basic raw material for the production of ultrafine-grained tungsten carbide. It should be sealed in vacuum and cannot be stored for more than 8 months. Particle The particle size of the ultrafine tungsten carbide powder can be measured by using the microscope (SEM, TEM), the laser particle size method, the X-ray line width method and the specific surface area method. The combination of several measurement…

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Fine Tungsten Carbide Powder 388

Fine Tungsten carbide powder has high purity, uniform particle size and good dispersibility. It has the surface electronic properties of platinum, which can be used as a catalyst in some organic reactions. Preparation Use metal tungsten powder and carbon black as raw materials, mixture in a certain proportion, the mixture into graphite boat, placed on a carbon tube furnace or high sense of intermediate frequency electric furnace, carbonized under a certain temperature, then through ball mill, screening. Finally, fine tungsten…

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Tungsten Carbide Powder 387

The chemical formula of tungsten carbide powder is WC. It is a good electric conductor with stable chemical properties. It is suitable for machining at high temperature and is the main raw material for the production of cemented Carbide. Characteristic Tungsten carbide powder is a black hexagonal crystal, with metallic luster, similar hardness to diamond, good conductor for electricity and heat. Melting point is 2870 ℃, the boiling point is 6000 ℃, the relative density is 15.63 (18 ℃). The…

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Tungsten Slurry 384

Tungsten slurry is composed of tungsten powder, inorganic binder phase and organic carrier, which has extremely high melting point, good conductivity and thermal conductivity. It is widely used in high temperature co-firing technology. Tungsten powder provides the premise for good sealing. The role of inorganic binder phase is to help sinter and provide sealing strength. The organic carrier is divided into three parts: resin, solvent and additive. Surfactant, leveling agent, antifoaming agents and other organic additives. Applications Melting point of…

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Waste Tungsten Powder 397

Waste tungsten powder is a tungsten powder that cannot meet the requirements of the follow-up production dingally and may be recycled during production, logistics transportation, storage and use. Recycling waste tungsten powder can improve economic efficiency and reduce environmental pollution. In the process of powder metallurgy, a lot of waste tungsten powder is produced for various reasons. In the process of logistics transportation, storage and use, oxidation may occur, or other substances, it may be adulterated to cause insufficient purity,…

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Ready to Press Tungsten Powder 377

Ready to press tungsten powder is a kind of powder used for cemented carbide sintering. It has excellent physical and chemical properties, good fluidity and compressibility, high chemical content and good carbon control. Characteristics Ready to press tungsten powder has stable apparent density, good liquidity and compressibility. Its chemical content is high, and amount of carbon control is good. Applications Ready to press tungsten powder is a raw material sintered in cemented carbide. During sintering, a series of physicochemical processes…

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Nano Scandium Oxide Doped Tungsten Powder 417

The scandium oxide of nano scandium oxide doped tungsten powder is evenly distributed and has small particles. It can produce excellent performance of the scandium tungsten matrix, improve the anti-ion bombardment performance, and help to improve cathode emission uniformity. Preparation Nano scandium oxide doped tungsten powder can be liquid-solid doping method by the decomposition of the reduction process. Scandium oxide evenly covered the surface of tungsten particles, pinning the role of inhibiting grain growth. Applications Nano scandium oxide doped tungsten…

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Tungsten Aluminum Powder 394

Tungsten aluminum powder is a kind of doped tungsten powder, which is prepared by tungsten powder mixed with aluminum. Its aluminum content is very low, and the oxygen content can be determined by the pulse heating coulometry. Aluminum is volatile at high temperatures, which may affect the determination of oxygen content. So It usually adopts the pulse heating coulombic oxygen method, this method is accurate, reliable, sensitivity and the minimum detection limit of the instrument can meet the production and…

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