Atomized nickel powder: using pure nickel as raw material, nickel powder prepared by atomization method: Ni: ≥ 99.9%, melting point: 1455 ℃, bulk ratio: 1.8-4.8 g / cm3, fluidity: ≤ 30 s / 50g. There are spherical (aerosol preparation) and non spherical (water atomization preparation) options.
Application of atomized nickel powder: atomized nickel powder is widely used in special welding rod, surface spraying and powder metallurgy parts. Because of its high porosity and irregular shape, atomized powder is mainly used in high specific gravity alloy, diamond drilling tools and surface spraying.
Electrolytic nickel powder: the enriched sulfide ore is roasted to oxide, reduced to coarse nickel with carbon, and then electrolyzed to pure nickel. Ni：≥99.99%。 Melting point 1453 ℃. Pine ratio: 1.40 ~ 1.68 g / cm3
Executive standard: GB / t5247-2012.
Application of electrolytic nickel powder: electrolytic nickel powder is mainly used in atomic energy industry, diamond, high-energy battery materials, alkaline batteries, electrical alloys, high-temperature high-strength alloys, catalysts and powder metallurgy additives.
Micron grade high-purity ultra-fine nickel powder: after the formation of nickel sulfide ore and carbon monoxide, it is decomposed after heating to obtain high purity nickel. Ni：99.999。 Pine ratio: 1.3-1.8g/cm3.
Executive standard: GB / T 7160-2008.
Application: widely used in nickel cadmium, nickel hydrogen batteries, filters, binders for high density and high melting point materials, powder metallurgy additives, precision alloys, special steel, stainless steel welding rods, petrochemical catalysts and new compounds, getters for electron picture tubes, high frequency or ultra high frequency magnetic materials, etc.
Industrial application
Introduction of nickel powder for diamond tools (metal matrix alloy powder): metal bond is one of the key factors to determine the quality of diamond saw blade, cutter head, grinding wheel, thin-wall drill and other products. After the diamond is determined, the quality of metal bond becomes the decisive factor. Cobalt powder and nickel powder can be used as the main binder, but the price of cobalt powder is higher.
In diamond tools, matrix refers to the metal sintered body that encapsulates diamond. The function of matrix is to hold the diamond and make it cut without falling off too early. The matrix is generally composed of a variety of metal elements, mainly using low melting point metal powder as binder, such as nickel powder.
Nickel powder is mostly used as matrix bonding material of diamond thin-wall bits and cutting chips used in construction industry, mining diamond bits and cemented carbide bits used in oil and gas industry; Most of the tools used in metal material processing, automobile and motorcycle mechanical grinding are diamond abrasives, and the matrix material is mostly nickel powder. It includes ultrafine nickel powder, electrolytic nickel powder and reduced nickel powder.
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