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Device and method for preparing spherical rare metal powder

A rare metal and powder preparation technology, applied in the field of powder metallurgy, can solve the problems of unable to prepare rare metal spherical powder, unable to effectively melt rare metal, high powder production cost, and achieve the effects of simple structure, low cost and high energy utilization rate

Active Publication Date: 2016-07-06
XIAN SAILONG AM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The particle size of the powder prepared by this technology is smaller than that of the plasma rotating electrode atomization technology, but the current technology of high-pressure inert gas atomization powder making technology to produce molten liquid flow is mainly induction melting technology, and induction melting technology cannot effectively melt some rare metals with high melting point , such as metals and alloys of Nb, Ta, Mo or W, etc.
Therefore, this technology cannot prepare such rare metal spherical powders with high melting point
In addition, the high-pressure inert gas atomization pulverization technology requires high energy consumption and consumes a large amount of inert gas, and the overall cost of powder production is relatively high.

Method used

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  • Device and method for preparing spherical rare metal powder

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Experimental program
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Effect test

Embodiment 1

[0037] Such as figure 1As shown, the spherical rare metal powder preparation device includes a pulverizing furnace body 1 and an electron gun 3 with an electron beam control device 4, and a vacuum unit 2 for vacuumizing the inside of the pulverizing furnace body 1 and for preparing The inside of the pulverizing furnace body 1 is filled with an inert gas cylinder group 8 of high-purity inert gas; the electron gun 3 is arranged at the top center of the pulverizing furnace body 1 and extends into the pulverizing furnace body 1, and the pulverizing furnace body 1 A rotary dynamic seal 7 is provided at the center of the bottom of the rotary seal 7, and a high-speed rotary mechanism 5 for driving the rare metal bar 6 passing through the rotary dynamic seal 7 to rotate is provided below the rotary dynamic seal 7. The rare metal bar 6 It is fixedly connected with the rotating part of the high-speed rotating mechanism 5; the two ends of the bottom of the powder making furnace body 1 ar...

Embodiment 2

[0044] The preparation method of spherical rare metal powder comprises the following steps:

[0045] Step 1. Pass the rare metal rod 6 used for preparing spherical rare metal powder through the rotating dynamic seal 7 at the center of the bottom of the pulverizing furnace body 1, and send it into the pulverizing furnace body 1, and place the rare metal rod 6 The lower end of the lower end is fixedly connected with the rotating part of the high-speed rotating mechanism 5, so that the rare metal bar stock 6 stands vertically in the pulverizing furnace body 1; the rare metal bar stock 6 is a diameter of 50mm and a length of 300mm light bar, and the rare metal bar 6 has undergone surface treatment of degreasing and impurity removal using detergent and absolute alcohol; the high-speed rotating mechanism 5 is an electric spindle or a high-speed motor, and the high-speed The rotating speed of rotating mechanism 5 is 20000r / min;

[0046] Step 2: First start the vacuum unit 2, and pum...

Embodiment 3

[0050] The preparation method of spherical rare metal powder comprises the following steps:

[0051] Step 1. Pass the rare metal rod 6 used for preparing spherical rare metal powder through the rotating dynamic seal 7 at the center of the bottom of the pulverizing furnace body 1, and send it into the pulverizing furnace body 1, and place the rare metal rod 6 The lower end of the lower end is fixedly connected with the rotating part of the high-speed rotating mechanism 5, so that the rare metal bar 6 stands vertically in the pulverizing furnace body 1; the rare metal bar 6 is a diameter of 80mm and a length of 700mm light bar, and the rare metal bar 6 has undergone the surface treatment of degreasing and impurity removal by using detergent and absolute alcohol; the high-speed rotating mechanism 5 is an electric spindle or a high-speed motor, and the high-speed The rotating speed of rotating mechanism 5 is 30000r / min;

[0052] Step 2: First start the vacuum unit 2, and pump the...

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Abstract

The invention discloses a spherical rare metal powder preparation device, which comprises a powder making furnace body, an electron gun with an electron beam control device, a vacuum unit and an inert gas cylinder group; the electron gun is arranged at the center of the top of the powder making furnace body and extends into the Inside the pulverizing furnace body, there is a rotating dynamic seal at the bottom of the pulverizing furnace body, and a high-speed rotating mechanism is installed under the rotating dynamic seal, and the rare metal bar is fixedly connected with the high-speed rotating mechanism; both ends of the bottom of the pulverizing furnace body are equipped with downward The protruding powder outlet, the powder outlet is connected with a powder outlet valve, the bottom of the powder outlet is provided with a powder collection container, and the bottom wall of the powder making furnace body between the two sides of the rotating dynamic seal and the powder outlet forms a direction Downward inclined powder outlet plate; the present invention also provides a method for preparing spherical rare metal powder using the device. The powder making process of the invention is simple, and the prepared spherical metal powder has high sphericity, uniform particles, small particle size, high purity, strong practicability, wide application range, and is convenient for popularization and use.

Description

technical field [0001] The invention belongs to the technical field of powder metallurgy, and in particular relates to a spherical rare metal powder preparation device and method. Background technique [0002] High-quality spherical rare metal powder is an important raw material necessary for the production fields of powder metallurgy near-net shape, injection molding, spraying and 3D printing. Base. At present, atomization technology is mainly used to produce spherical rare metal powder, that is, liquid metal is crushed by certain means to obtain spherical powder, mainly including centrifugal atomization and high-pressure inert gas atomization. [0003] The centrifugal atomization method is to use the centrifugal force generated by the rotation to throw out the molten liquid droplets and condense them to obtain spherical powder. There are mainly plasma rotating electrode atomization and rotating disk atomization powder making technologies. The plasma rotating electrode at...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/10
Inventor 贺卫卫贾文鹏陈斌科赵培汤慧萍向长淑朱纪磊周勃延
Owner XIAN SAILONG AM TECH CO LTD