ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
In the present study, the influence of the slurry temperature and the gate velocity on theapparent density of molded products was investigated using a thixomolding machine and a die havinga rectangular parallelepiped cavity. Magnesium alloy of AZ91D was injected into the cavity through arectangular gate. The gate velocity was varied from 0.4 m/s to 6.0 m/s and the slurry temperature waschanged between 853K and 903K, respectively. The die temperature was fixed at about 513K. Theresults were as follows. The apparent density of the molded products at a constant gate velocity wasdecreased gradually with an increase in the slurry temperature in cases the slurry temperature waslower than 863K, however, it decreased suddenly at around the slurry temperature of 873K, and thenit took an almost constant value when the slurry temperature was over 873K. The apparent density ofthe molded products at a constant slurry temperature was decreased greatly with an increase in thegate velocity in the case the slurry temperature was over 873K, however, it decreases slowly as thegate velocity increased for cases the slurry temperature was under 863K
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/22/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.116-117.468.pdf
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