Wan Li1, Zhao Yunyun2, Pan Huan1, et al. Development and Application of High Vacuum Die Casting in Aluminum Alloy. [J]. Special Casting & Nonferrous Alloys (11):858-861(2008)
Wan Li1, Zhao Yunyun2, Pan Huan1, et al. Development and Application of High Vacuum Die Casting in Aluminum Alloy. [J]. Special Casting & Nonferrous Alloys (11):858-861(2008)DOI:
Development and Application of High Vacuum Die Casting in Aluminum Alloy
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。
Abstract
We have developed some key unites related to high vacuum die casting process based on MFT(minimum filling time) method
including shut-off valve
vacuum system
sealing structure of die
releasing agent and gating system.The mechanical properties and microstructure of ZL101 alloy in high vacuum die casting process were researched.The results indicate that
compared with those of one in conventional die casting
tensile strength and elongation of the ZL101 alloy in high vacuum die casting reach up to 204.55 MPa and to 8.41%
increased by 17.16% and by 71.98%
respectively
showing the great improvement of mechanical properties
especially ductility.However
compared with as-cast one
T6 treated ZL101 alloy after high vacuum die casting are increased by 7.68% in tensile strength and decreased by 6.78% in elongation.
关键词
高真空压铸压铸铝合金强度韧性组织
Keywords
High Vacuum Die CastingAl-Si-Mg AlloyStrengthDuctilityMicrostructure
State Key Laboratory of Materials Processing and Die & Mold Technology, Huazhong University of Science and Technology ,Wuhan 430074,China.2. College of Mechanical Engineering,Wuhan Institute of Technology
武汉工程大学机电学院
华中科技大学材料成形与模具技术国家重点实验室
National Engineering Research Centre of Near-net Shape Forming for Metallic Materials,South China University of Technology
National Engineering Research Center of Near-Net-Shape Forming for Metallic Materials, South China University of Technology