| 摘要 |
PURPOSE:To press samples under a uniform pressure by the cushion effect of the fluid on the rear of the samples by feeding a fluid between the upper and lower samples and sample fixing base plates to detach the samples from the fixing base plates and pressing the samples. CONSTITUTION:An upper sample 15 is attached along locating pins 9 on an upper sample fixing base plate 1, and the space between the sample 15 and the plate 1 is evacuated to a vacuum through a mouthpiece 11 for air to fix the sample 15. A lower sample 16 is similarly attached to a lower sample fixing base plate 3 and the space therebetween is evacuated to a vacuum through a mouthpiece 12 for air to fix the sample 16. When air is fed to a mouthpiece 14 for force feeding, a vertical driving part 5 ascends and the plate 3 contacts with a timing sensor 17. Then the space between the samples 15, 16 is evacuated to a vacuum through a mouthpiece 13 for evacuation; at the same time the samples 15, 16 are released from the attracted state and this time the air is fed through the mouthpieces 11, 12 to exert a uniform pressure on the rear of the samples. The pressure combined with the suction between the samples 15 and 16 is then exerted on the samples and the samples are pressed. |
