Cobalt as a binder in powder metallurgy can ensure a certain toughness of the carbide

Overview of Cobalt Co Powder

Cobalt is a crispy metal, an appearance is similar to iron and nickel, and its magnetic permeability is about two-thirds of iron. It is often obtained as a by-product of nickel, silver, lead, copper and iron ore and exists in a meteorite. Cobalt is often used in electroplating due to its special magnetic strength and is used in electroplating due to its appearance, hardness, and oxidation resistance.

Cobalt powder is also known as fine cobalt powder, ultrafine cobalt powder. Molecular formula: CO. The gray irregular powder is dissolved in acid, magnetic properties, which is easy to oxidize in the humid air. Widely used in aviation, aerospace, electrical, mechanical manufacturing, chemical and ceramic industries. Cobalt-based alloys or cobalt-containing alloy steels are used as blades of fuel turbines, impeller, catheter, jet engine, rocket engine, components of the cobalt, and various high-load heat-resistant components and atomic energy industries in the chemical equipment. Cobalt is also an important part of a permanent magnetic alloy. In the chemical industry, cobalt is used for high alloy and anti-corrosion alloys and is also used in colored glass, pigments, enamel and catalysts, desiccants, and the like.

Cobalt powder can be prepared by water mist. The water atomization method refers to a method of using a pressure of 5 to 50 mP, crushed the metal fluid flow in a state of melting, and produces a metal powder. Since the impurity content, extremely low cobalt sheet is used as raw material, water as an atomizing medium is also purified, so the purity of metal cobalt powder produced is high. Its production process is rough: the cobalt plate is allowed to stand for a while in the intermediate frequency induction melting furnace, and the high-pressure water atomization powder device is activated, and then the metal cobalt liquid is poured into the leakage, and the bottom portion is packed. Used to control the size of the metal fluid stream. The metal cobalt liquid passes through the vulnerability, and the fused seal enters the atomizing device, under the impact from the high-pressure water stream from the loop, crushed into a small liquid bead and quickly condensed, forming water Under the action of the powder mixture, under the action of the chosen, the hydraulic cyclone is entered, and a swirling of about 2000 r / min is formed, and the solid-liquid separation is separated under the action of centrifugation. After the cobalt powder is concentrated, the water is discharged, and the water flows back to the reservoir through the overflow tube. The collected wet powder is dehydrated, dried and screened for finished cobalt powder.

Applications of Cobalt Co Powder

Cobalt powder is one of the main raw materials of cemented carbide. As a binder in powder metallurgy, cobalt can guarantee the toughness of cemented carbide. Magnetic alloy is an indispensable material in the modern electronic and electromechanical industry, used to make various components of sound, light, electricity and magnetic equipment. In addition, cobalt powder can also be used in the following aspects.

Catalytic aspects

Cobalt powder is used in the petroleum industry in lead cracking, mainly as a catalyst for dehydrosulfur of petroleum. In the field of polyester fiber used as a terephthalic acid purification agent. For example, the average sulfur content in gasoline in the United States has dropped from 0.03% to 0.003%, and cobalt catalysts have played a big role.

With the development of nanotechnology, nano cobalt powder has been found to have a catalytic effect on the pyrolysis process of polycarbosilane and can reduce the pyrolysis temperature. The addition of cobalt promotes the growth of β-SiC microcrystals during pyrolysis.

Cobalt oxide nano-catalyst has a good catalytic effect on the decomposition of N2O=N2+O2, and Co2O3 has the best catalytic effect. Co-Mo nanocrystals and gold powders have higher catalytic activity of hydrogen evolution, and their overpotential of hydrogen evolution is lower than that of Ni-Mo nanocrystalline alloy composite electrode prepared by the same method.

Battery industry

The application of cobalt in batteries is remarkable, especially the widespread use of lithium-ion batteries has greatly increased the use of cobalt. In nickel-metal hydride batteries, the foam nickel electrode doped with ultrafine cobalt powder has high discharge capacity and high current charge-discharge cycle stability. In recent years, due to the rapid development of the battery industry, the amount of ultrafine cobalt powder has increased sharply.

Special tools

Ultrafine cobalt powder can be made into special functional materials. For example, it is widely used in special molds and lining of bearing bushes and wear-resistant parts. Armor materials are usually made of various alloys to improve their toughness and impact resistance to withstand the attack of artillery shells. A new type of high-strength superhard material can be made from ultrafine cobalt powder by sintering with new technology, which can be used for armor protection. It can also be made into anti-corrosion coating with high-temperature resistance, heat dissipation and electrical conductivity, which can be widely used in aerospace aircraft, airports, military docks, military oil depots, ammunition depots, ships and other special occasions for protection.

Magnetic materials

With the development of information technology, the main requirements for magnetic recording components and recording equipment are to improve their recording density, recording capacity and becoming smaller. Ni-Co alloy with critical magnetocrystalline anisotropy and the characteristics of low coefficient of thermal conductivity, become a kind of important magnetic materials, especially in terms of magnetostrictive transducer materials, using the alloy powder preparation of magnetic recording materials with high recording density, coercive force, good signal-to-noise ratio, good oxidation resistance, and a series of advantages, become a kind of important magnetic material production of computer hard disk. Nickel-cobalt magnetic-controlled shape memory alloy has the advantages of fast response frequency and good temperature control shape memory effect of piezoelectric ceramics and magnetostrictive materials, and is expected to be a key material for a new generation of actuators and sensors, and is a new type of functional material.

Cobalt Co Powder Price

Cobalt Co Powder price will vary randomly with the production cost, transportation cost, international situation, exchange rate, and market supply and demand of Cobalt Co Powder. Tanki New Materials Co.,Ltd Aims to help All industries and Chemical Wholesalers to find high-quality, cheap price Nanomaterials and chemicals by providing turn-key customize manufacturing services. If you are looking for Cobalt Co Powder, please feel free to send an inquiry for the latest price of Cobalt Co Powder.

Cobalt Co Powder Supplier

As a global Cobalt Co Powder supplier, Tanki New Materials Co.,Ltd has rich experiences in the properties, applications, and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metal, etc.), high-purity targets, functional ceramics, and structural devices, OEM service is available.

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