I want to know the fluidity of ZA8 ZA12 and ZA27 alloys at different temperature.
Manohar Sehgal
In general:
Lf=V.ts
For calculating fluidity , either use a spiral mould or equivalent die. So we apply two equations:
For sand mould:
Lf =V. km.S^2/ 4
For equivalent Die:
Lf =V. ki.S/ 2
Lf=fluidity distance
V=flow velocity
S=thickness
ts= solidification time
km and ki are constants whose values(if not given) can be calculated from the solidification time[ts] by applying the relations:
ts= km.S^2/4( for mould)
and
ts= ki.S/2( for equivalent die casting) .
Reference:
TALAT Lecture 3205
The Fluidity of Molten Metals
Advanced Level
prepared by John Campbell and Richard A. Harding, IRC in Materials,
The University of Birmingham
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