Metal powder material preparation device and method

Abstract

The invention provides a metal powder material preparation device and method. The device comprises a tank, a rotating motor and an annular water pipe; a melting furnace is arranged at the top of the tank, and circulating water is contained in the bottom of the tank; the rotating motor is fixedly connected to the inner wall of the tank, a rotating shaft is arranged on the rotating motor, the upperend of the rotating shaft is connected with a rotating table, a rotating barrel is fixedly arranged on the rotating table, and screen holes are distributed in the barrel wall of the rotating barrel; and a circle of drainage holes are formed in the lower edge of the annular water pipe, the annular water pipe communicates with the upper end of a circulating water pipe, the lower end of the circulating water pipe extends into circulating water, and a circulating booster pump is arranged in the middle of the circulating water pipe. The device has the beneficial effects that the screen holes are distributed in the barrel wall of the rotating barrel of the device, the screen holes can prevent liquid drops of metal liquid thrown out of the rotating barrel from being too large, and therefore the quality of metal solid powder materials is improved; and the annular water pipe can spray impact water flow downwards, and the impact water flow further crushes the metal liquid drops and enables the metal liquid drops to be rapidly cooled to form metal powder.

Description

technical field [0001] The invention relates to the technical field of metal preparation materials, in particular to a metal powder material preparation device and method. Background technique [0002] Because of its small particle size, metal powder materials are easily heated quickly to a molten state and solidified into solids of different shapes. Therefore, metal particle powder materials are widely used in the fields of 3D printing and coating. The preparation methods of metal particle powder materials are mainly based on The plasma rotating electrode method is the main method. The principle of preparing metal powder by the plasma rotating electrode method is to liquefy the rotating metal rod by emitting high-energy electron beams from the plasma electron gun, and throw the metal liquid in the form of droplets by centrifugal force to make metal powder; The problem with the existing devices using the ion rotating electrode method is that the plasma electron gun can only ...

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Problems solved by technology

[0002] Because of its small particle size, metal powder materials are easily heated rapidly to a molten state and solidified into solids of different shapes. Therefore, metal particle powder materials are widely used in the fields of 3D printing and coating. The preparation methods of metal particle powder materials are mainly based on The plasma rotating electrode method is the main method. The principle of the plasma rotating electrode method to prepare metal powder is to liquefy the rotating metal rod by emitting high-energy electron beams from the plasma electron gun, and throw the metal liquid in the form of droplets by centrifugal force to make metal powder; The problem with the existing device using the ion rotating electrode method is that the plasma electron gun can only heat a very small amount of metal to the liquid state, which greatly limits the preparation efficiency of the metal particle powder material; In the process of throwing out, solid powder needs to be re-solidified, so the volume of the device for preparing metal powder materials is usually relatively large. In order to improve the preparation efficiency of metal powder materials and reduce the volume of the device for preparing metal powder materials, the present invention provides a A kind of metal powder material preparation device and method

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