Supercharge Your Innovation With Domain-Expert AI Agents!

A kind of screening method of metal powder

A technology of metal powder and metal powder, which is applied in the field of metal powder screening to achieve the effects of low equipment cost, avoiding pollution, and high screening efficiency

Active Publication Date: 2018-10-02
OPTIMAL MATERIAL TECH CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that this method uses ultrasonic high-frequency vibration screening equipment for screening. In order to obtain a better screening effect, it is necessary to improve the screening equipment and add a uniform disc to the screening equipment, which cannot be used in ordinary ultrasonic screening. The sieving effect of the method is realized in the equipment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of screening method of metal powder
  • A kind of screening method of metal powder
  • A kind of screening method of metal powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment 1 sieves the titanium alloy powder of 15~45 μm

[0053] (1) The metal powder raw material of 0-250 μm is prepared by an atomization method.

[0054] (2) The fine screen is 15μm, the coarse screen is 45μm, and the screen area is 0.2m 2 .

[0055] (3) Fill the screening system with high-purity Ar at a rate of 9 L / min, which corresponds to the outlet pressure of the pressure reducing valve at 0.5 MPa. Monitor the oxygen content and stop aerating when the oxygen content is lower than 0.8vol%.

[0056] (4) Turn on the feed switch to let the powder flow into the silo evenly. The weight of a feed is controlled at 10kg.

[0057] (5) Control the feed rate to 0.8kg / min, that is, the corresponding pneumatic pressure of the feeder is controlled at 0.2MPa.

[0058] (6) The high-frequency vibration screening process is used for screening, the vibration frequency is 35kHz, and the vibration deviation angle is 10°.

[0059] (7) Sieve for 60 minutes, and when the sievin...

Embodiment 2～9

[0064] Using the method of Example 1, the control parameters were adjusted for screening, and the adjusted parameters and conclusions are shown in Tables 1-3.

Embodiment 10

[0073] Embodiment 10 Sieve the titanium alloy powder of 15~53 μm

[0074] (1) The metal powder raw material of 0-250 μm is prepared by an atomization method.

[0075] (2) Use 15 μm for the fine screen and 53 μm for the coarse screen. Screen area is 0.2m 2 .

[0076] (3) Fill the screening system with high-purity Ar at a rate of 9 L / min, which corresponds to the outlet pressure of the pressure reducing valve at 0.5 MPa. Monitor the oxygen content and stop aerating when the oxygen content is lower than 0.8vol%.

[0077] (4) Turn on the feed switch to let the powder flow into the silo evenly. The weight of a feed is controlled at 10kg.

[0078] (5) Control the feed rate to 1.0kg / min, that is, the corresponding pneumatic pressure of the feeder is controlled at 0.2MPa.

[0079] (6) The high-frequency vibration screening process is used for screening, the vibration frequency is 35kHz, and the vibration deviation angle is 10°.

[0080] (7) Sieve for 60 minutes, and when the si...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a screening method of metal powder, in particular to a screening method of metal powder applicable to additive manufacturing, and belongs to the technical field of the additive manufacturing. The screening method of the metal powder is characterized in that the metal powder is screened by adopting an ultrasonic high frequency vibrating screen, the screening is carried outin an inert gas atmosphere by adopting a two-stage screening mode, the feed rate of the metal powder on per square meter of screen mesh is controlled at 2.66-6 kg / min, the ultrasonic vibrating frequency is 33-37 kHz and the vibrating deviation angle is 5-15 degrees; and after the screening, the metal powder on a fine screen mesh meets the particle size requirement of target metal powder. Accordingto the screening method, the screening is carried out in the ultrasonic high frequency vibrating screen, the metal powder with the particle size being below 250 micrometers can be screened, the screening efficiency is high, screen meshes are not prone to blocking during the screening, the probability of generating a dust cloud is low, and the screening method is applicable to industrial mass screening.

Description

technical field [0001] The invention relates to a metal powder screening method, in particular to a metal powder screening method suitable for additive manufacturing, and belongs to the technical field of additive manufacturing. Background technique [0002] Metal additive manufacturing is an emerging technology that is rapidly developing in the manufacturing industry, and is known as "the manufacturing technology with industrial revolution significance". The technology is developing and maturing day by day, and has been widely used in aerospace, biomedical, military, metallurgy, construction, automobile, electronics, jewelry, mold and other industries. As an important raw material, metal powder used in additive manufacturing plays a vital role in the development of this technology. The metal powder used in additive manufacturing needs to meet the following requirements: fine powder particle size, narrow particle size distribution, less satellite balls, high sphericity, goo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B22F9/04
CPCB22F9/04
Inventor 邹善方吴利苹刘睿诚王强曾益伟
Owner OPTIMAL MATERIAL TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com