Abstract
This paper describes a basic study of gas-liquid phase-change actuator for high-force characteristics. A fablicated actuator was structured by stainless steel bellows, which were contained C_5F_<ll>N0 as operating liquid. For the high pressure and high axial force, the bellows was made from many coned disc springs, which were welded each other for an inner edge and an outer edge by YAG laser. The actuator has a lO Ω heater, a V-shield and a thermistor for measuring operating liquid. We confirmed two kinds of results, which were a force of l00N at 1mm displacement and 20N at 7mm under pulse controlling on 353K with 12W. We also confirmed a quickly arising motion by the V-shield.
