| 摘要 |
PURPOSE:To test the toughness against breakdown at a high temperature and a high pressure with a miniaturized device, by leading a fluid to a test piece storing part having a heating means and a load part continuously and pressing a piston of the load part by this fluid to apply a load to a test piece. CONSTITUTION:After a test piece 9 is grasped by grasping materials 10 and 14, an aperture part is closed by a cover 25, and the cover 25 is fixed by a nut 27. Electric power is supplied to a heater 26 to heat the inside of a storage chamber 4 and the test piece 9 to a prescribed temperature, and high-pressure gaseous hydrogen is supplied as atmospheric gas from a fluid supply tube 20, thus making the inside of the storage chamber 4 high-temperature and high-pressure. The pressure of gaseous hydrogen acts upon a piston 7 in a load part 3, and this force is measured through a connecting rod 15, the grasping material 14, the test piece 9, the grasping material 10, and a connecting rod 11 by a load cell 12. The piston 7 falls in accordance with the fatigue of the test piece 9, and this fall is measured by a displacement meter 16, thus testing the toughness against breakdown at a high temperature and a high pressure. |
