Powder Metal

picture info	Powder Metal Metal powder is a metal that has been broken down into a powder form. Metals that can be found in powder form include aluminium powder, nickel powder, iron powder and many more. There are four different ways metals can be broken down into this powder form: * Direct reduced iron, Direct Reduction * Gas wikt:atomization, Atomization * Liquid Atomization * Centrifugal Atomization Processes The following processes can be used to produce metal powder: # Direct reduction is the result of blending carbon with iron oxide ore, heating the mixture, removing the sponge iron from the carbon, grinding it, annealing (metallurgy), annealing it, and regrinding to make the powder form usable for manufacturing. # Gas atomization occurs when a molten metal is passed through a passageway to a gas-filled chamber that cools the metal. As it falls, it is collected and annealed into a powder. # Liquid atomization is similar to gas atomization, but instead the metal is sprayed with high-pressure liquid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Iron Powder Iron powder has several uses; for example production of magnetic alloys and certain types of steels. Iron powder is formed as a whole from several other iron particles. The particle sizes vary anywhere from 20-200 μm. The iron properties differ depending on the production method and history of a specific iron powder. There are three types of iron powder classifications: reduced iron powder, Atomizer nozzle, atomized powder, and electrolytic iron powder. Each type is used in various applications depending on their properties. There is very little difference in the visual appearances of reduced iron powder and atomized iron powder. Applications Automobiles Most iron powders are used for automobile parts. Engine parts Cam shaft pulley Cam shaft sprocket Crank shaft pulley Crank shaft sprocket Cap crank bearing Valve guide Valve seat Rocker arm chip Oil pump inner rotor Oil pump outer rotor Steering parts, suspension, and brake parts Power steering rotor cam ring Pres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Metal A metal (from Greek μέταλλον ''métallon'', "mine, quarry, metal") is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. Metals are typically ductile (can be drawn into wires) and malleable (they can be hammered into thin sheets). These properties are the result of the ''metallic bond'' between the atoms or molecules of the metal. A metal may be a chemical element such as iron; an alloy such as stainless steel; or a molecular compound such as polymeric sulfur nitride. In physics, a metal is generally regarded as any substance capable of conducting electricity at a temperature of absolute zero. Many elements and compounds that are not normally classified as metals become metallic under high pressures. For example, the nonmetal iodine gradually becomes a metal at a pressure of between 40 and 170 thousand times atmospheric pressure. Equally, some materials regarded as metals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Aluminium Powder Aluminium powder is powdered aluminium. This was originally produced by mechanical means using a stamp mill to create flakes. Subsequently, a process of spraying molten aluminium to create a powder of droplets was developed by E. J. Hall in the 1920s. The resulting powder might then be processed further in a ball mill to flatten it into flakes for use as a coating or pigment. Characteristics The melting point of aluminium powder is 660 °C. Usage * autoclave aerated concrete * cosmetic colourant * fingerprint powder * metallic paint * pyrotechnics (including the M-80 firecracker) * refractory * rocket and missile fuel such as the solid rocket boosters of the Space Shuttle * thermite Depending on the usage, the powder is either coated or uncoated. Safety Aluminium is insoluble. If the powder or dust is breathed in then little of it will be absorbed but it may interfere with the clearance mechanism of the lung. High levels of exposure over many years may result in alu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Iron Powder Iron powder has several uses; for example production of magnetic alloys and certain types of steels. Iron powder is formed as a whole from several other iron particles. The particle sizes vary anywhere from 20-200 μm. The iron properties differ depending on the production method and history of a specific iron powder. There are three types of iron powder classifications: reduced iron powder, Atomizer nozzle, atomized powder, and electrolytic iron powder. Each type is used in various applications depending on their properties. There is very little difference in the visual appearances of reduced iron powder and atomized iron powder. Applications Automobiles Most iron powders are used for automobile parts. Engine parts Cam shaft pulley Cam shaft sprocket Crank shaft pulley Crank shaft sprocket Cap crank bearing Valve guide Valve seat Rocker arm chip Oil pump inner rotor Oil pump outer rotor Steering parts, suspension, and brake parts Power steering rotor cam ring Pres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Direct Reduced Iron Direct reduced iron (DRI), also called sponge iron, is produced from the direct reduction of iron ore (in the form of lumps, pellets, or fines) into iron by a reducing gas or elemental carbon produced from natural gas or coal. Many ores are suitable for direct reduction. Direct reduction refers to solid-state processes which reduce iron oxides to metallic iron at temperatures below the melting point of iron. Reduced iron derives its name from these processes, one example being heating iron ore in a furnace at a high temperature of in the presence of the reducing gas syngas, a mixture of hydrogen and carbon monoxide. Process Direct reduction processes can be divided roughly into two categories: gas-based, and coal-based. In both cases, the objective of the process is to remove the oxygen contained in various forms of iron ore (sized ore, concentrates, pellets, mill scale, furnace dust, etc.), in order to convert the ore to metallic iron, without melting it (below ). The dir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Atomization Atomization refers to breaking bonds in some substance to obtain its constituent atoms in gas phase. By extension, it also means separating something into fine particles, for example: process of breaking bulk liquids into small droplets. Atomization may also refer to: Science and technology * The making of an aerosol, which is a colloidal suspension of fine solid particles or liquid droplets in a gas * An apparatus using an atomizer nozzle * Sprays, mists, fogs, clouds, dust clouds and smoke, which appear to be atomized * A nebulizer, which is a device used to administer medication in the form of a mist inhaled into the lungs * An electronic cigarette atomizer is a component which employs a heating element to vaporize a flavored solution, that may or may not contain nicotine, for inhalation into the lungs * The conversion of a vaporized sample into atomic components in atomic spectroscopy Sociology * Atomization is frequently used as a synonym for social alienation Social alie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]