Preparation before the tensile tester test Before the test of the tensile tester
Before the tensile testing machine is preheated, the preparation of the tensile testing machine is actually an important part. According to the long-term accumulated experience, Shanghai Enterprise Testing Instrument Co., Ltd. summarizes the following:
1. Before the test, the tensile testing machine must ensure that the system is preheated for more than 20 minutes in advance, so that the temperature influence is minimized.
2. Tensile strength Before the start of the tensile testing machine, check whether the frictional active part should be filled with lubricating oil.
3. Before the test piece is added, the brake handle must be stuck, and the test piece is added and released.
4. The main bearing of the dynamometer is not allowed to refuel. The surface of the friction wheel in the gearbox shall not be oiled or splashed with oil. The friction surface shall be absolutely clean and the slanting block on the swing arm shall not be violently impacted.
5. After the test is completed, after cutting off the power supply, the surface of the test machine should be cleaned and protected in time to prevent surface rust.
6, the average monthly maintenance of the tensile machine 2 to 3 times
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