Abstract: Clapeyron equation has been
inferred in terms of theories of energy conservation, which is a
new method. Based on Clapeyron equation, formulae for
calculating critical specific pressure under ideal conditions
have been given. Through analysesing hydropressure in composite
body, we consider that hydropressure is in linear with specific
pressure. Such a view of point has been brought forward that "at
the final stage of liquid forging, metals solidify under ideal
condition". Furthermore, the concept of coefficient of simultaneous
solidification has been put forward. In this paper, formulae for
calculating critical specific pressure with different ratio of
height to diameter in liquid forging have been given for the
first time, they are in good agreement with experimental data.
Key words:
Liquid forging Critical specific
pressure
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