The thermal shock tester is widely used in plastics, electronics, metals, rubber and even the defense industry. It is one of the common material testing equipment. The thermal shock tester is generally used to test the degree to which a material structure or composite material can withstand in an instantaneous environment of high temperature and low temperature. Applicable to scientific research, quality inspection and measurement, schools, factories, military and other units for electrical, electronic products, semiconductors, electronic circuit boards, metal materials, bearings and other materials in the environment of rapid changes in temperature adaptability test. Through the equipment test of the thermal shock test machine, the reliability of the product and the quality control of the product can be effectively enhanced.
Although many companies have already purchased and used the thermal shock test machine, there are still many unclear places. Now, the operation process of the thermal shock test machine is briefly introduced.
Step 1: Sample Pretreatment: Place the sample to be tested under normal test atmospheric conditions until temperature stability is achieved.
Part II: Initial sample test: The sample to be tested is compared with the standard requirements. After meeting the requirements, it is directly placed in the thermal shock test machine for testing.
The third step: sample test: This is a formal test, the most important step in testing the product by the thermal shock test machine.
First of all, the test sample of the thermal shock test machine needs to be placed in the test chamber in strict accordance with the requirements of the thermal shock box implementation standard, and the temperature in the test chamber (chamber) is raised to the designated test point, and sufficient time is maintained until the test sample The temperature is stable, which is based on the length of time.
Secondly, after the test in the high temperature test chamber is completed, the test sample should be transferred to the low temperature test chamber (chamber) adjusted to -55 ° C within 5 minutes for 1 hour or until the test sample reaches temperature stability for a period of time. quasi.
Again, after the low temperature test chamber is completed, the test sample is transferred to a high temperature test chamber (chamber) adjusted to 70 ° C for 5 minutes or until the test sample reaches temperature stability, whichever is longer.
Finally, in order to ensure the accuracy of the high and low temperature thermal shock test results of the material, please repeat the above steps by repeating the above three steps. Because the time may vary slightly depending on the size of the sample and the size of the space.
Step 4: Recovery: After the test sample is taken out of the test chamber, it should be restored under normal test atmospheric conditions until the test sample reaches temperature stability.
Final test: The degree of damage in the standard of the thermal shock tester and other methods were used to evaluate the test results.
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