一方法 DC-150小能量多次冲击试验机。原来是用圆棒进行旋转弯曲多次冲击试验,近年来我们已将圆形旋转弯曲试样改成常用的一次摆锤冲击弯曲的标准方形试样,进行单向多次冲击弯曲试验,使用效果良好。方形试样安放在一个构造简单的夹具上,见图1。夹具安装在机器原有的凹形砧座内,用螺钉固定。试样水平装入夹具槽内,用试验机上原配的单头冲锤进行小能量单向多次冲击弯曲试验。 A method DC-150 small energy multiple impact testing machine. In the recent years, we have changed the circular rotating bending specimen into the commonly used standard square specimen with pendulum impact bending, and conducted one-way repeated impact bending test. The effect good. The square specimen is placed on a simple fixture, see Figure 1. Fixture installed in the machine original concave anvil, with screws. The sample level into the fixture slot, with a single head hammer on the test machine for small energy unidirectional multiple impact bending test.