Production of nickel-powder by electromechanical modification self-formative process

A forming process and electrochemical technology, applied in electroforming, electrolysis process and other directions, can solve the problems of high production cost, backward process method, complicated process, etc., and achieve the effect of reducing production cost, shortening process flow, and being beneficial to environmental protection.

Inactive Publication Date: 2007-01-17
HEZE TIANYU TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The demand for nickel powder in powder metallurgy products (tungsten carbide, diamond tools, nickel-iron alloy products, nickel-based products, etc.) and stainless steel products is increasing year by year. High, unable to meet market demand in terms of output or quality

Method used

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  • Production of nickel-powder by electromechanical modification self-formative process
  • Production of nickel-powder by electromechanical modification self-formative process

Examples

Experimental program
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Embodiment Construction

[0017] This embodiment comprises the steps:

[0018] 1) Conductivity of the mold core

[0019] The mold core can be polyurethane, polyester or polyether, and the material is polyester polyol or polyether polyol with two or more hydroxyl groups at the end and diisocyanate, water, surfactant, catalyst and other additives for polymerization The polymer compound formed later contains many repeated -NH-C-O-groups on the main chain, commonly known as polyurethane sponge; the mold core can also be a mesh material of chemical fibers such as nylon and polypropylene or cotton fiber textiles.

[0020] The conductive treatment process of the mold core is as follows:

[0021] The belt-shaped mold core is nickel-plated by magnetron vacuum sputtering on the mold core to form a conductive mold core. Coating power = 80-100 kilowatts, voltage = 400-600 volts, line speed = 0.5-10m / min, thickness of the object to be plated = 0.05-10mm.

[0022] 2) Electrochemical modification of nickel

[002...

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Abstract

An electrochemical modifying and self-forming process for preparing nickel powder includes such steps as making the mould core to be electrically conductive, electrochemical modifying of Ni, thermodecomposing, oxidizing, pulverizing, sieving, reducing, and sieving.

Description

(1) Technical field [0001] The invention relates to a production method of nickel powder, in particular to a method for producing nickel powder by an electrochemical modification self-forming process. (2) Background technology [0002] Nickel powder can be widely used in powder metallurgy products (tungsten carbide, diamond tools, nickel-iron alloy products, nickel-based products, etc.), stainless steel products, rechargeable batteries and chemical products, etc. In recent years, due to the rapid development of mobile phones, laptops, computers and other telecommunication equipment, the market demand for nickel powder has been increasing. According to statistics, the world's demand for nickel-metal hydride batteries grows by 20% annually. In order to meet the rapidly growing demand of the market, the United States, Japan and other countries continue to invest huge sums of money to expand the production of nickel powder. Like other countries in the world, the development of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/00B22F9/18C25D1/08
Inventor 王乃用毕研文宋小斌江衍勤苏衍宪李常兴孟国强
Owner HEZE TIANYU TECH DEV CO LTD
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