Title:
MG-AL MAGNESIUM ALLOY, PREPARATION METHOD FOR TUBE MADE OF MG-AL MAGNESIUM ALLOY, APPLICATION OF MG-AL MAGNESIUM ALLOY
Document Type and Number:
WIPO Patent Application WO/2022/152212
Kind Code:
A1
Abstract:
The present invention relates to the technical field of alloy materials. Disclosed are an Mg-Al magnesium alloy, a preparation method for a tube made of the Mg-Al magnesium alloy, and an application of the Mg-Al magnesium alloy. The magnesium alloy comprises, in percentage by weight, 7.0-8.6% of Al, 0.8-2.0% of RE, 0.2-0.8% of Mn, and the balance of Mg, and has an elongation of 15-22%. The preparation method for a tube made of the Mg-Al magnesium alloy comprises: mixing an Al source, an RE source, an Mn source, and an Mg source to smelt into a liquid-state mixed metal; semi-continuously casting the liquid-state mixed metal into a bar; uniformly heating the bar at 360-400°C for 6-10 h; and performing extrusion forming on the heated bar to form the tube made of the Mg-Al magnesium alloy. The Mg-Al magnesium alloy provided by the present invention has a high elongation, and can reach an elongation of 15-22% after being formed into the tube, so as to withstand a large plastic deformation; moreover, the Mg-Al magnesium alloy has excellent welding performance, and has a welding loss rate of lower than 6%, thereby greatly reducing the loss of strength of a magnesium alloy profile after welding, and ensuring the strength of the magnesium alloy profile after welding. The magnesium alloy can be used in the field of vehicle equipment and medical instruments.
Inventors:
FANG DAQING (CN)
ZHANG XIAORU (CN)
DING XIANGDONG (CN)
YANG JUN (CN)
LIU PENG (CN)
GONG BAOLUO (CN)
ZHANG XIAORU (CN)
DING XIANGDONG (CN)
YANG JUN (CN)
LIU PENG (CN)
GONG BAOLUO (CN)
Application Number:
PCT/CN2022/071812
Publication Date:
July 21, 2022
Filing Date:
January 13, 2022
Export Citation:
Assignee:
ALLITE JIANGSU MAGNESIUM TECH CO LTD (CN)
International Classes:
C22C23/02; B21C23/20; C22C1/02; C22F1/06
Domestic Patent References:
| WO2010130159A1 | 2010-11-18 |
Foreign References:
| CN112877575A | 2021-06-01 | |||
| CN102051509A | 2011-05-11 | |||
| CN109338187A | 2019-02-15 | |||
| CN102758110A | 2012-10-31 |
Attorney, Agent or Firm:
FOUNDIN INTELLECTUAL PROPERTY (CN)
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