Abstract
Abstract Vacuum die casting can reduce the “air entrapment” phenomenon during casting process. Based on the temperature measurements at metal–die interface with different processing parameters, such as slow shot speed (VL), high shot speed (VH), pouring temperature (Tp) and initial die temperature (Tm), inverse method was developed to determine the interfacial heat transfer coefficient (IHTC). The results indicate that a closer contact between the casting and die could be achieved when the vacuum system is used. It is found that the vacuum could strongly increase the values of IHTC and decrease the grain size in castings. The IHTC could have a higher peak value with increasing the Tp from 680 to 720 °C or the VL from 0.1 to 0.4 m/s. In addition, the influence of the VH and Tm on IHTC could be negligible.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Transactions of Nonferrous Metals Society of China
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
