Title:
NON-HEAT-TREATED HIGH-TOUGHNESS DIE-CASTING ALUMINUM-SILICON ALLOY AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/103201
Kind Code:
A1
Abstract:
Disclosed in the present invention are a non-heat-treatment high-toughness die-casting aluminum-silicon alloy and a preparation method therefor. By means of controlling a certain Mn/Fe ratio of the alloy, the adverse effect caused by Fe can be effectively restrained; and by means of introducing a certain proportion of rare earth elements, Si in the material can be effectively refined, and the rare earth elements and other elements such as Al and Cu can form a high-temperature phase to improve the deformation resistance of the material that is applied to die-cast integrated large structural parts. Under the condition of sampling the die-casting state of the body of large castings, the alloy can achieve a tensile strength of 290 MPa, a yield strength of 140 MPa, and a specific elongation of 13%, and also has an excellent die-casting forming performance; and the energy used is clean energy, and the standard for low-carbon emissions is reached.
Inventors:
WANG XIN (CN)
Application Number:
PCT/CN2022/080807
Publication Date:
June 15, 2023
Filing Date:
March 15, 2022
Export Citation:
Assignee:
SHENYUANCHUANG SHANGHAI ADVANCED MATERIAL TECH CO LTD (CN)
International Classes:
C22C21/04; B22D7/00; B22D17/00; C22C1/03
Domestic Patent References:
| WO2016161908A1 | 2016-10-13 |
Foreign References:
| CN113755722A | 2021-12-07 | |||
| CN101629258A | 2010-01-20 | |||
| CN109881056A | 2019-06-14 | |||
| US6364970B1 | 2002-04-02 | |||
| CN108754256A | 2018-11-06 | |||
| CN109881056A | 2019-06-14 | |||
| CN106636787A | 2017-05-10 |
Attorney, Agent or Firm:
TAHOTA LAW FIRM (CN)
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