Production method of metal powder

A manufacturing method and technology of metal powder, which are applied in the field of powdering strip base material

Inactive Publication Date: 2006-11-22
TOMONARI TECH CORP
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] Therefore, impurities such as solvents, coagulants, and neutralizing agents must be mixed in such titanium powders, and because they are processed in a liquid state, there is a limit to improving the purity.

Method used

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  • Production method of metal powder

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Embodiment Construction

[0008] The first feature of the present invention is that a strip (scrip; linear, plate-shaped, tubular, etc.) made of a non-ferrous metal or a single substance of carbon is used as a powdered starting material, that is, as a base material 10, and a further aspect of the present invention It is characterized in that the base material 10 is heated by the arc (Arc) generated by the torch 4 of the plasma generator 3 to make it plasma, and then sprayed, cooled, and collected to produce powder.

[0009] Elemental strips of non-ferrous metal or carbon as the starting material of powder metal, including titanium, cobalt, copper (Cu), aluminum, calcium tungstate ore, zirconium, high chromium steel, corrosion-resistant nickel-based alloy (hastelloy), Silver (Ag) and Carbon (C). Among them, when the base material 10 is titanium, it is ideal for productivity to set the thickness to 1.5 to 2 mm. This tendency appears particularly in the case of producing products in nm units.

[0010] J...

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Abstract

A manufacturing method of useful metallic powder which improves purity of the matrix by removing alien substances vaporized at a low temperature and slagged in a process of heating nonferrous metal scrape as a matrix of a starting material using high frequency arc, reduces manufacturing cost by simplifying the manufacturing process, and easily controls particle sizes of powder obtained by controlling pressure of compressed air and electric current of a plasma generator is provided. A manufacturing method of metallic powder comprises the processes of: preparing nonferrous metal scrap such as wire, plate and pipe as a matrix(10) of a starting material, and heating the matrix using arc generated from a torch(4) of a plasma generator(3), thereby converting the matrix into plasma; and ejecting the plasma, and cooling and collecting the ejected plasma. The matrix of the starting material is titanium, cobalt, copper, aluminum, tungsten, zirconium, high chromium steel, Hastelloy, or silver.

Description

technical field [0001] The present invention relates to a method of powdering a scrip (strip, wire, plate, tube, etc.) base material composed of a nonferrous metal such as titanium or a simple substance of carbon. Background technique [0002] In the past, in the process of manufacturing metal powder, as a physical method, the metal was first processed into a foil plate shape or a wire shape, and then made into pieces, which were put into a pulverizer (mainly using a ball mill) to pulverize and produce. A method of dispersing and producing after high-temperature compression. However, compared with products produced by chemical methods described later, the products produced by these physical production methods are far inferior in quality and productivity, so physical methods are hardly used except in special cases. [0003] In addition, as a chemical method, when the base material is titanium, ilmenite (by sulfonic acid method or hydrochloric acid method) or alkoxy titanium ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/14
CPCB22F9/14B22F2202/13B22F2301/052B22F2301/10B22F2301/205
Inventor 林在虎李松来
Owner TOMONARI TECH CORP
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