MANUFACTURING METHOD FOR RARE-EARTH MAGNESIUM ALLOY COMPOSITE MATERIAL

WIPO Patent Application WO/2021/035772

A1

A manufacturing method for a rare-earth magnesium alloy composite material, which is performed by the following steps: (1) preparing a magnesium ingot as a raw material; preparing a rare-earth magnesium intermediate alloy; and preparing a salt flux and a reinforcement; (2) placing the salt flux into a crucible, and heating same to prepare a salt flux melt; adding the reinforcement to the salt flux melt, and stirring to prepare a liquid-solid mixture; (3) pouring the liquid-solid mixture into a crucible at room temperature, and cooling to obtain a precursor; (4) pre-heating an iron crucible, adding the raw material and the rare-earth magnesium intermediate alloy to the iron crucible, melting, and uniformly stirring to form a raw material melt; (5) adding the precursor to the raw material melt, stirring, mixing, and resting at 973-1,023 K; and (6) removing scums, cooling, and casting. The method in the present invention is simple in process, is low in cost, can significantly improve the strength of the rare-earth magnesium alloy composite material, can carry out automatic production, and is significant in the development of rare earth and composite materials.

LE QICHI (CN)
REN LIANG (CN)
LI XIAOQIANG (CN)
ZHOU WEIYANG (CN)
ZHAO DAZHI (CN)
CHENG CHUNLONG (CN)

PCT/CN2019/104187

March 04, 2021

September 03, 2019

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UNIV NORTHEASTERN (CN)

C22C1/10; C22C1/03; C22C1/06; C22C23/06; C22C47/08; C22C49/04

CN108796251A	2018-11-13
CN108772568A	2018-11-09
CN108817734A	2018-11-16
CN1837412A	2006-09-27
CN109576520A	2019-04-05

SHENYANG DONGDA INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)

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