摘要
以MFT(Minimum Filling Time)法自主开发了涉及高真空压铸的相关关键技术,包括真空截止阀、真空系统、模具的密封结构、涂料、浇注系统等。并以ZL101合金为对象,研究了高真空压铸下试样的力学性能和组织。结果表明,ZL101高真空压铸试样的力学性能比普通压铸有较大的提升,尤其是韧度显著增高,抗拉强度、伸长率分别比普通压铸提高约17.16、71.98;但T6热处理后,抗拉强度比铸态下提高了7.68,伸长率却下降了6.78。
High vacuum die casting process is a novel technology, which are mainly used to make automobiles parts due to lightweight trends. Key technologies including shut-off valve, vacuum system, sealing structure of die, release agent and gating system are investigated based on the MFT process(Minimum Filling Time) in the paper. Microstructure and properties of ZL101 were analyzed in the high vacuum die casting process. The results demonstrated that the developed high vacuum die casting process can meet the needs ...
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2008年第11期858-861,共4页
Special Casting & Nonferrous Alloys
基金
清华大学先进成形制造重点实验室开放基金资助项目(2006002)
关键词
高真空压铸
压铸铝合金
强度
韧性
组织
high vacuum die casting
Al-Si-Mg alloys
strength
ductility
microstructure
