| 摘要 |
<p>Fully hydraulic mould-closing cylinder for compression or injection moulding machine for duro-or thermoplastic materials has piston and piston rods with boreholes for the front of an axially movable hydraulically lockable stepped piston with a continuous longitudinal bore and whose rear is in the cylinder housing. An after-suction oil tank is connected to the piston pressure chamber, the pressure and conterpressure chamber of the stepped piston being connectable to the oil line or the return pipe via a check valve and control slide.</p> |
