Title:
HIGH-STRENGTH CORROSION-RESISTANT MAGNESIUM ALLOY COMPOSITE MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/004851
Kind Code:
A1
Abstract:
A high-strength corrosion-resistant magnesium alloy composite material and a preparation method therefor. A formula comprises Mg, Al, Sn, Mn, WC, La and Ca. The preparation method comprises: step 1: weighing raw materials; step 2: melting the raw materials; step 3: ultrasonic stirring; step 4: casting molten liquid; and step 5: heat treatment, wherein in step 2, the volume ratio of nitrogen to argon is 1 : 1; in step 2, the smelting temperature is 700ºC, and the heating rate is 200ºC/30 min; and in step 5, the homogenization treatment temperature is 300-400ºC, and the homogenization treatment time is 5-10 h. Compared with an existing magnesium alloy, the alloy composition proportion is improved, the strength of the magnesium alloy is increased, and the magnesium alloy also has good corrosion resistance; the raw materials are smelted in a vacuum and under a protective gas, such that the generation of impurities is reduced; and in addition, ultrasonic stirring is used, such that the raw materials can be mixed more evenly, and therefore, the quality of the finished magnesium alloy is guaranteed.
Inventors:
TAO CHENG (CN)
FU XIAO (CN)
FU XIAO (CN)
Application Number:
PCT/CN2021/110656
Publication Date:
February 02, 2023
Filing Date:
August 04, 2021
Export Citation:
Assignee:
GUANGDONG MINGLIDA TECH CO LTD (CN)
International Classes:
C22C23/00; C22C1/02
Domestic Patent References:
| WO2015126054A1 | 2015-08-27 |
Foreign References:
| CN110777288A | 2020-02-11 | |||
| CN107236884A | 2017-10-10 | |||
| CN111519074A | 2020-08-11 | |||
| CN112981202A | 2021-06-18 | |||
| CN112442620A | 2021-03-05 | |||
| CN109972008A | 2019-07-05 | |||
| GB596102A | 1947-12-29 |
Attorney, Agent or Firm:
DONG GUAN SHI SHENZHOU ZHONGDA PATENT AND TRADEMARK AGENCY (CN)
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