| 摘要 |
PURPOSE:To make the apparatus compact and intensive and to process many test simultaneously in a concentrated manner, by inserting the test piece holding part of a loading device into an atmospheric chamber under the closely sealed state so that the holding part can be attached and detached. CONSTITUTION:A first rod 12 is inserted into an upper frame 11. A second rod 17 is inserted into a load frame 15. Under this state, a test piece 20 is attached by a holding means 19 between both rods 12 and 17. Then, a loading spring 22 is inserted at the upper part of the upper frame 11. A load correcting means 24 is provided on the upper part of the rod 12 and fixed by an adjusting screw. A chamber 14 is formed in a box form by an upper surface plate 37, a lower surface plate 38 and side surface plates 40. An atmospheric space is formed by the adjustment of inner temperature and humidity, sealing of special gas and the like. The lower part of the upper frame 11 is inserted into a hole part 41 of the upper surface plate 37 of the chamber 14 and fixed. Under this state a specified load is applied to the test piece 20, and elongation in time and fracture time are measured. |
