METHOD FOR PREPARING ALUMINUM-BASED COMPOSITE MATERIAL

WIPO Patent Application WO/2021/035775

A1

Disclosed is a method for preparing an aluminum-based composite material, wherein same is carried out according to the following steps: (1) preparing an aluminum ingot as a raw material and preparing a salt flux and a reinforcement; (2) placing the salt flux in a crucible and heating same to prepare a salt flux melt, adding the reinforcement thereto and stirring same to prepare a liquid-solid mixture; (3) pouring same into a normal temperature crucible for cooling to obtain a precursor; (4) preheating a smelting crucible to 573-673 K, wherein the raw material is added and melted to form a raw material melt; (5) placing the precursor in the raw material melt and stirring same, and then standing at 993-1023 K to form a dross and a composite material melt; and (6) lowering the temperature to 983±5 K after the removal of the dross, and then casting same. The method of the present invention has a simple process, a low cost and can greatly improve the strength of the aluminum-based composite material, and the method can be used to prepare an aluminum-based composite material structural component with a large volume, and can achieve automatic production, and this is of great significance to the development of the aluminum industry.

LE QICHI (CN)
REN LIANG (CN)
LI XIAOQIANG (CN)
CHENG CHUNLONG (CN)
ZHAO DAZHI (CN)
JIANG YANCHAO (CN)

PCT/CN2019/104190

March 04, 2021

September 03, 2019

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UNIV NORTHEASTERN (CN)

C22C1/10; C22C1/03; C22C1/06; C22C21/00; C22C47/08; C22C49/06

CN109576520A	2019-04-05
CN108772568A	2018-11-09
CN108048676A	2018-05-18
CN106032563A	2016-10-19

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

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