| 摘要 |
PURPOSE:To make it possible to perform an impact abrasion test under a uniform condition, by employing such a structure that an anvil formed into a ring shape is rotated at a predetermined speed and a test piece is collided with said anvil while rotating. CONSTITUTION:An anvil 27 is fixed in a rotary table 25 and formed into a ring shape. In addition, a cam disc 28 is attached through a shaft 29 above the rotary table 25 so as to be rotated at a predetermined speed. In this case, a test piece 32 is collided with the anvil 27 through an object to be crushed with a definite thickness, for example, a thickness of 3-5mm. while rotated by the rotary table 25. Therefore, the change of a testing condition caused by the partial abrasion of the anvil 27 is not generated and the test can be performed under the same testing condition. |
