1. Before the test, it is necessary to check whether the test machine is in the working condition, and the working parts and fasteners must be safe and reliable.
2, according to the expected impact energy of the specimen, determine the appropriate pendulum, make the impact testing machine in the range of 10% to 90% of the maximum energy of the pendulum, check and adjust the corresponding position of the sample bearing and the impact pendulum.
3, before the experiment, the pointer to the maximum value, empty once, check whether the pointer back to zero, or should be corrected.
4, slightly lift the pendulum, put the test pieces on the support of the impact machine, the specimen should be placed close to the support, and the back of the specimen notched on the pendulum blade. The specimen notch should be located in the symmetrical center of the two support, and the deviation should not be greater than 0.5 mm.
5, press the "set" button, raise the pendulum, to hear the sound after the lock, can slowly let go. During the experiment, the "shock" button, pendulum drop, thrust test piece, and let it continue to swing forward, until it reaches the highest point swing back, then the pendulum swinging brake, read pendulum thrust test pieces energy loss from the dial.
6, the pendulum is laid down in the plumb position, and the specimen is removed.
7, in the process of test to Caution!, pendulum and forbidden to stand.
8. Under non working condition, the handle handle should be placed under the condition of "preparation".
Ji'nan platinum Testing Technology Co., Ltd.
Scan濟南鉑鑒試驗機
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