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镁合金半固态浆料制备及注射成形技术研究进展
The Research Process for the Preparation of Mg-based Semi-solid Slurry and Thixomolding Technology
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- DOI:
- 作者:
- 吴振波1，2，郭 威3，黄润华3，李 祥1，2，隋铁军1，2，赵 觅4， 王锦程5，乔彦强5，吴树森
WUZhenbo1,2, GUO Wei3, HUANG Runhua3, LI Xiang1,2, SUI Tiejun1,2, ZHAO Mi4, WANGJincheng5, QIAO Yan
- 作者单位:
- 1. 伊之密股份有限公司，广东佛山528306；2.广东省智能化模压成型装备企业重点实验室(伊之密)，广东佛山528306； 3. 华中科技大学材料成形与模具技术全国重点实验室，湖北武汉430074；4.华中科技大学航空航天学院，湖北武汉 430074；5. 西北工业大学凝固技术全国重点实验室，陕西西安710072；6.华中科技大学材料科学与工程国家级示范教 学中心，湖北武汉430074
1. Yizumi Holding Co., Ltd., Foshan 528306, China; 2. Guangdong Provincial Key Laboratory of Intelligent Molding Equipment Enterprises (Yizumi), Foshan 528306, China; 3. State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China; 4. School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; 5. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, China; 6. National Experimental Teaching Demonstration Center of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
- 关键词:
- 镁合金；半固态浆料；注射成形；研究进展
Mg-based alloys; semi-solid slurry; thixomolding technology; research process
- 摘要:
- 随着节能减排对于材料轻量化的要求不断提高，镁合金在诸多领域得到了广泛应用。 然而，镁合金熔体易 氧化燃烧，使得镁合金构件的成形方式有限。半固态成形通过将液态金属转化为球形半固态颗粒，可减少成形缺陷并提 升材料性能。半固态注射成形则结合了高压铸造与注射成形的优点，实现了半固态浆料制备和成形过程一体化，可用于 生产具有复杂形状的薄壁零部件。 本文综述了镁合金半固态浆料非树枝晶结构的形成机制，总结了相关的半固态浆料 制备工艺，并对镁合金半固态注射成形技术进行了介绍，对镁合金半固态成形技术的未来发展进行了总结与展望。
Due to the increasing requirements for lightweight materials in energy conservation and emission reduction, magnesium alloys have been widely applied in numerous fields. However, magnesium-based melts are prone to oxidation and combustion, which limits the methods used to form magnesium alloy components. Semi-solid formation can reduce defects and enhance material properties by transforming liquid metals into spherical semi-solid particles. Semi-solid thixomolding technology combines the advantages of high-pressure casting and injection molding, realizing the integration of semi-solid slurry preparation and the forming process, and can be used to produce thin-walled parts with complex shapes. This paper reviews the formation mechanism of the nondendritic structure of magnesium-based semi-solid slurries,summarizes the relevant semi-solid slurry preparation processes, introduces magnesium-based semi-solid thixomolding technology, and finally summarizes and prospects for the future development of magnesium-based semi-solid forming technology.