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Metal spherical powder separation method and application of powder

A technology of spherical powder and separation method, which is applied in the direction of cyclone device, etc., can solve the problem of low polarization rate of metal spherical powder, and achieve the effect of improved yield, good flow effect and simple separation

Active Publication Date: 2018-05-04
无锡辛德华瑞粉末新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defect of low polarization ratio of metal spherical powder in the prior art, and provide a method for separating metal spherical powder and the application of the powder

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The specific operation is:

[0023] (1) D90: 159 micron spherical aluminum alloy (AlSi 12 ) Metal powder, the spherical powder prepared by the rotating electrode is placed in the powder collection tower, the powder collection tower is connected to the suction pipe, the power is set to 25KW, the powder-containing airflow is 20m / s, and the processing capacity of the powder collection tower is 200kg / h , the air flow adopts air;

[0024] (2) In the primary classifier, the coarse powder hits the wall and the reflection cone settles, and collects the large-particle aluminum alloy spherical metal powder of 67-159 microns, of which the spherical aluminum alloy powder of 1-67 microns passes through the flow channel between the separator and the cyclone splitter , is brought into the secondary cyclone splitter by the airflow, and the flow to the wind speed is adjusted to 4m / s;

[0025] (3) In the secondary cyclone splitter, the 40-67 micron spherical aluminum alloy metal powder...

Embodiment 2

[0029] The specific operation is:

[0030] (1) Place the spherical iron-based mold steel (1.2709) metal powder with D90 of 1-150 microns, the spherical powder prepared by vacuum atomization (VIGA) in the powder collection tower, and connect the powder collection tower to the suction pipe, The power is set to 75KW, the powder-containing airflow is 60m / s, the processing capacity of the powder collection tower is 800kg / h, and the airflow adopts 50% nitrogen + 50% argon;

[0031] (2) In the primary classifier, the coarse mold steel powder hits the wall and settles through the reflection cone, and collects the large particle mold steel spherical metal powder of 60-150 microns, wherein the spherical mold steel powder of 1-60 microns passes through the middle of the separator and the cyclone splitter The flow channel is brought into the secondary cyclone splitter by the air flow, and the flow to the wind speed is adjusted to 9.7m / s;

[0032] (3) In the secondary cyclone flow divider...

Embodiment 3

[0037] The specific operation is:

[0038] (1) Place the spherical titanium alloy (TC4) spherical metal powder with D90 of 1-219 microns, the spherical powder prepared by vacuum air atomization (EIGA) in the powder collection tower, connect the powder collection tower with the suction pipe, and power The setting is 46KW, the powder-containing airflow is 39m / s, the processing capacity of the powder collection tower is 400kg / h, and the airflow adopts high-purity argon;

[0039] (2) In the primary classifier, the titanium alloy coarse powder hits the wall and the reflection cone settles, and the large particle titanium alloy spherical metal powder of 53-150 microns is collected, and the spherical titanium alloy powder of 1-53 microns passes through the middle of the separator and the cyclone splitter The flow channel is brought into the secondary cyclone splitter by the air flow, and the flow to the wind speed is adjusted to 6.9m / s;

[0040] (3) In the secondary cyclone splitter...

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PUM

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Abstract

The invention belongs to the technical field of powder separation. A metal spherical powder separation method comprises the following steps: (1) D90: 1-250 microns of spherical metal powder is put ina powder collecting tower; (2) the powder in the powder collecting tower passes through a primary classifier; coarse powder touches a wall, and a reflecting cone is settled; large-particle metal spherical powder is collected; and thinner-particle powder is taken into a secondary cyclone flow separator by air currents through a rubber between the primary classifier and a cyclone flow separator; (3)in the secondary cyclone flow separator, the metal spherical powder with larger particle size is settled down due to the gravity; the spherical metal powder with medium particle size is centrifugallysettled due to a rotating motion, and is separated to merge with the large-particle powder as standby powder; and the thinner-particle micron powder is taken out by the air currents, and is filteredand recovered through a pulse remover; and (4) the standby powder collected by the secondary cyclone flow separator is collected and detected, is dried after qualification, and is packed in vacuum orthrough nitrogen filling.

Description

technical field [0001] The invention belongs to the technical field of powder separation, and in particular relates to a metal spherical powder separation method and powder application thereof. Background technique [0002] Under the action of fan suction, the material moves to the classification area from the inlet at the lower end of the classifier with the updraft at high speed. Under the action of the strong centrifugal force generated by the high-speed rotating classifying turbine, the coarse and fine materials are separated, and the fine particles that meet the particle size requirements pass through the classification. The gap between the wheel blades enters the cyclone separator or dust collector to collect, and the coarse particles entrain some fine particles to hit the wall, and the speed disappears, and then descends along the cylinder wall to the secondary air outlet, and the strong elutriation of the secondary air separates the coarse and fine particles The part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B04C7/00B04C11/00
CPCB04C7/00B04C11/00
Inventor 康凯
Owner 无锡辛德华瑞粉末新材料科技有限公司