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Current location: homepage > news information > Testing machine industry information >Purpose and principle of low temperature impact test

Purpose and principle of low temperature impact test

Article source: Jinan HuiFu testing machine factory popularity: Time of publication: 08:39, July 10, 2019

Purpose and principle of low temperature impact test
So far, the purpose of testing materials under impact load is to determine the impact resistance of materials under low temperature
The principle of low temperature impact test is the law of conservation of energy. The specimen with specified shape, size and notch type is placed on the specimen support of impact testing machine to make it in the state of simply supported beam. Then, a pendulum with a specified height is used to strike the specimen at one time. In essence, it is to measure the work absorbed by the specimen when it breaks under such impact through the process of energy conversion.

The low temperature impact test steps of metal materials should be formulated according to the specific testing machine, and the overall steps are as follows:
1. Preparation of samples
2. Sample inspection, the key point is to check the sample gap
3. Low temperature treatment of sample (if necessary)
4. Start up and debug the testing machine (different methods may be different)
5. Install the sample on the impact testing machine and conduct the impact test
6. Issue report
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