HIGH-PRESSURE VESSEL DEVICE

摘要

PURPOSE:To change-over easily high and low pressures under the specified axial force by forming a space between an outside cylinder and cylinder and forming respectively a means for supplying a low-pressure medium and a means for supplying and discharging a high-pressure medium so as to communicate with the space and a lower cap. CONSTITUTION:A high-pressure vessel 10 consists of the outside cylinder 11 and the cylinder 12 and is formed with an upper cap 16 and the lower cap 17 at the top and bottom open ends to form the space 13 between the cylinders 11 and 12. The means 22 for supplying the low-pressure medium is formed with a low-pressure pump 25 to an oil piping 26 so as to communicate with the space 13 through the port of the outside cylinder 11. The means 23 for supplying and discharging the high-pressure medium is provided with a high- pressure pump 29 to an oil piping 30 and is communicated with the port 17B of the lower cap 17. After the low pressure is maintained in the space 13 by such mechanism, the powder in a pressure capsule is molded under the high pressure developed by the pump 29. The easy low-pressure molding is made possible by removing the cylinder 12. The easy change-over of the high and low pressures under the specified axial force is thus made possible.