Title:
METHOD OF ELIMINATING HOLLOWNESS DEFECT IN ATOMIZED ALLOY POWDER
Document Type and Number:
WIPO Patent Application WO/2016/141870
Kind Code:
A1
Abstract:
A method of eliminating a hollowness defect in an atomized alloy powder, in which a ball-milling process is performed on an atomized alloy powder to eliminate a hollowness defect at an interior of a powder particle. The method comprises: controlling a milled ball diameter, a mass ratio and a ball material ratio of milled balls having different diameters, combining the same with a control of a ball milling time to perform a multi-directional 3-dimensional impact on the powder, thus achieving a control over a spherical degree of the powder, achieving solid spherical powder, improving a powder utilization ratio, shortening the ball milling time and simplifying the process.
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Inventors:
LIU ZUMING (CN)
SU PENGFEI (CN)
HUANG BOYUN (CN)
DUAN QINGLONG (CN)
MA MENGMEI (CN)
GUO YANG (CN)
CHEN SHIQI (CN)
SU PENGFEI (CN)
HUANG BOYUN (CN)
DUAN QINGLONG (CN)
MA MENGMEI (CN)
GUO YANG (CN)
CHEN SHIQI (CN)
Application Number:
PCT/CN2016/075835
Publication Date:
September 15, 2016
Filing Date:
March 08, 2016
Export Citation:
Assignee:
UNIV CENTRAL SOUTH (CN)
International Classes:
B02C17/20; B02C25/00
Foreign References:
| CN105344436A | 2016-02-24 | |||
| CN103433480A | 2013-12-11 | |||
| CN103551568A | 2014-02-05 | |||
| CN1358593A | 2002-07-17 | |||
| US20040042922A1 | 2004-03-04 | |||
| JP2001073012A | 2001-03-21 |
Attorney, Agent or Firm:
RONG ZHI PATENT AGENCY (CN)
长沙市融智专利事务所 (CN)
长沙市融智专利事务所 (CN)
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