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Preparation device and preparation method of metal powder for 3D printing

A metal powder and 3D printing technology, applied in the field of 3D printing, can solve the problems of non-continuous production, low yield of fine powder, limited structural design, rotating speed and preparation process, etc., to improve production efficiency, high fine powder Yield effect

Pending Publication Date: 2020-04-07
SHENZHEN WEINA ADDITIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing rotary centrifugal pulverization method is limited by the structural design, rotational speed and preparation process of the rotary platform, and there are still the following defects: pulverization according to heat cannot be continuously produced, and the yield of fine powder is not high

Method used

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  • Preparation device and preparation method of metal powder for 3D printing
  • Preparation device and preparation method of metal powder for 3D printing
  • Preparation device and preparation method of metal powder for 3D printing

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Such as figure 1 with figure 2As shown, Example 1 of the present application provides a preparation device for metal powder for 3D printing. The metal powder is prepared in the chamber 1, and the metal replenishment liquid required for the continuous powder making of the powder making chamber 1 is prepared in the liquid making chamber 2; A powder tank 3, a first melting crucible 4 is provided inside the powder making chamber 1, a powder making device is arranged above the first melting crucible 4, and the powder making device includes a rotating disk 5 and a liftable and reversible electric spindle 6, The rotating disk 5 is arranged above the first smelting crucible 4 near the powder collecting tank 3, and the electric spindle 6 is arranged above the rotating disk 5 to drive the rotating disk 5 to rotate at a high speed. The rotating speed of the electric spindle 6 can be 0-100000 rpm rev / min) range, the rotating shaft of the electric spindle 6 is connected to the ce...

Embodiment 2

[0051] Example 2 of the present application provides a method for preparing metal powder for 3D printing, the preparation method adopts such as figure 1 The preparation device for the metal powder for 3D printing shown in is used to prepare the metal powder for 3D printing, which specifically includes the following steps:

[0052] Putting the metal to be melted into the first melting crucible and the second melting crucible;

[0053] Vacuum the preparation apparatus to 6.63×10 -3 After Pa, the metal is smelted in the first smelting crucible to prepare metal powder making liquid, and the metal is smelted in the second smelting crucible to prepare metal feed liquid;

[0054] Control the electric spindle to move to the side close to the first melting crucible, and turn over to the side close to the powder collecting tank, so that the tangential edge of the rotating disk is in contact with the liquid surface of the metal powder making liquid;

[0055] The electric spindle drives...

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PUM

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Abstract

The invention discloses a preparation device and a preparation method of metal powder for 3D printing. A furnace body comprises a powder preparation chamber and a liquid preparation chamber. A powdercollection tank is arranged outside the powder preparation chamber, and a first smelting crucible is arranged inside the powder preparation chamber; a powder preparation device is arranged above the first smelting crucible; the powder preparation device comprises a rotating disc and a liftable and turnable electric main shaft; the rotating disc is arranged above one side, close to the powder collection tank, of the first smelting crucible; the electric main shaft is arranged above the rotating disc and used for driving the rotating disc to rotate, and the rotating shaft of the electric main shaft is connected with the center of the rotating disc; and a second smelting crucible which can translate and turn over and is used for smelting metal supplementing liquid is arranged in the liquid preparation chamber. The technical problems in the prior art that powder is prepared according to the heat number, continuous production cannot be achieved and the yield of fine powder is low are solved.

Description

technical field [0001] The present application relates to the technical field of 3D printing, in particular to a preparation device and method of metal powder for 3D printing. Background technique [0002] With the development and innovation of processing technology, powder materials are more and more widely used in the fields of automobile, aerospace, aviation, transportation, biomedicine, etc. needs are more urgent. At present, the main method of producing metal spherical powder at home and abroad is the high-pressure gas atomization method. This method uses high-pressure airflow to break up the metal liquid flow into small droplets, and then cools and solidifies it into metal powder. It is precisely because of the high-pressure airflow that As a result, the prepared metal powder has a certain amount of defects such as hollow powder and satellite balls on the surface of the particles, which seriously restricts the development of the domestic metal 3D printing additive man...

Claims

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Application Information

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IPC IPC(8): B22F9/10
CPCB22F9/10
Inventor 孔令鸿高玉来
Owner SHENZHEN WEINA ADDITIVE TECH CO LTD