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Screening system and screening method for reactive metal powder

A technology for active metal and powder, applied in the field of metal powder screening system, can solve the problems of low screening efficiency and screening accuracy, cumbersome screening process, etc., to improve screening efficiency and screening accuracy, screening The process is simple and the effect of solving the cumbersome screening process

Active Publication Date: 2019-10-08
中航迈特粉冶科技(北京)有限公司
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  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a screening system and screening method for active metal powder. The screening system integrates the advantages of vibrating screen screening and airflow classifier screening. The screening process is simple and can complete different particles at one time. The powder screening in the diameter range improves the screening efficiency and screening accuracy, so as to solve the technical problems of the screening device screening process in the prior art, and the screening efficiency and screening accuracy are not high

Method used

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  • Screening system and screening method for reactive metal powder
  • Screening system and screening method for reactive metal powder
  • Screening system and screening method for reactive metal powder

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Embodiment 1

[0079] (1) The original titanium alloy TC4 powder is packed in the powder storage device, and the powder storage device is placed upside down on the first sieving frame, and the inversion height is 0.5 meters away from the feeding port of the first vibrating screen;

[0080] (2) Turn on the protective gas circulation system;

[0081] (3) The discharge port of the powder storage device is connected to the feed port of the first feeder, and the above-mentioned powder is input into the first vibrating screen at a constant speed by the first feeder, and the first vibrating screen is an ultrasonic vibrating screen;

[0082] (4) The screen mesh number on the first vibrating screen is set to be 60 mesh, which is used to remove the bulk metal slag in the TC4 powder, so as to prevent the bulk metal slag from jamming the feeding device during the feeding process, causing heat damage, Then turn on the first vibrating screen. The power of the motor on the first vibrating screen is 500W, a...

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Abstract

The invention provides a screening system and screening method for reactive metal powder. The screening system comprises a first vibrating screen device, an airflow grading device, a second vibratingscreen device and a protective gas circulating system, wherein the airflow grading device comprises a spiral feeder and a grading bin, a discharging port of the first vibrating screen device is connected with the spiral feeder, the spiral feeder is connected with the grading bin through a conveying pipe, and a discharging port of the grading bin is connected with the second vibrating screen device. According to the screening system and screening method, the screening process of the screening system is simple, powder screening among different particle size ranges can be completed at one time, screening efficiency and screening precision are improved, and then the technical problems that the screening process of a screening device in the prior art is tedious, and the screening efficiency andthe screening precision are not high are solved.

Description

technical field [0001] The invention relates to the technical field of powder metallurgy, in particular to a metal powder screening system and method. Background technique [0002] Gas atomization technology is a technology that uses high-pressure and high-speed inert gas (nitrogen or argon) to impact and break metal liquid into metal droplets. Under the action of surface tension, metal droplets gradually tend to form spherical shapes, and finally cool to form Spherical metal powder. Metal 3D printing technology is a process that uses 15-53μm metal powder materials to melt under laser scanning and finally form complex structural parts. The metal powder selected by the metal 3D printing technology requires certain fluidity to facilitate powder spreading, and for the consideration of the density and surface roughness of the parts, the powder with a particle size above 53 μm and a particle size below 15 μm is generally removed from the powder. Use the powder with a particle s...

Claims

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Application Information

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IPC IPC(8): B07B9/00B07B1/28B07B7/083B22F9/08
CPCB07B1/28B07B7/083B07B9/00B07B2230/04B22F9/082B22F2009/0896
Inventor 王山高正江张国军马腾陈欣
Owner 中航迈特粉冶科技(北京)有限公司
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