Quiescent Pouring Process of Vacuum Sealed Molding Casting

Abstract:

The silicon aluminum alloy casting with the large, thin wall and high surface quality requirements is produced with the inversion pouring process of vacuum sealed molding casting. The quartz sand was dried by 30 (0.425, 0.300, 0.212 screen) groups water, and the plastic film was dried to soft at 60 ~ l00 °C and the vibration frequency of the vibration worktable was 50 Hz, and the amplitude was 0.5~1mm,and the vacuum degree was 0.040 ~ 0.075 MPa. The inversion pouring was driven by Hydraulic drive with 60 ~ 90 s filling time. The inversion pouring process with smooth gas discharge, reasonable temperature distribution and good shape of casting thin wall, which improves the liquid metal liquidity, the mechanical properties and surface quality, and meets the using requirement.

• Periodical: Advanced Materials Research (Volumes 538-541)
• Pages: 1084-1087
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.538-541.1084
• Online since: June 2012
• Authors: Guo Hui Li, Hong Qi Lin, Yang Yang
• Keywords: Aluminum Casting Alloy, Quiescent Pouring, Vacuum Sealed Molding

References

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