There are two main aspects of the buckle in the testing process:
One: the tensile test, this test is mainly to detect the bearing capacity of the fastener, it is divided into two steps to complete:
1. Instant tension test, mainly used for buckle, D buckle, and day buckle, to test the strength of the buckle when suddenly encountering strong tension.
2. Enduring tension test, its main principle is to determine the time value of the buckle when the load is a certain weight.
Second: temperature test, this is mainly to test the endurance of the buckle at unconventional temperatures, divided into two types of tests: high temperature and low temperature
1. The high temperature is usually set at 70 degrees Celsius
2. The low temperature is usually set at minus 30 degrees. The time is 24 hours, and then the change in intensity is tested.
The third is the salt spray test. This test is mainly to monitor the salinity of the buckle. Some products can only be transported by sea. Long-term operation at sea will affect the quality of the product. This test is divided into four steps.
1. Soak the buckle in sea water for 72 hours
2. Put the soaked fasteners in the sun for 5-7 days
3. After the completion of the test, has there been any major changes in the test intensity.
4. There are also some such as acid resistance tests, which can be tested according to different needs and materials. The relevant metal fasteners should also be tested for rust resistance, corrosion resistance, and drug resistance. , If the plastic buckle has post-processing of the product, such as electroplating, water dyeing, oiling, etc., it is necessary to further test whether these additional processes are qualified.
The above is a brief introduction to the buckle. With the continuous development of products, the varieties are becoming more and more diversified, and the testing in this area is becoming more and more stringent.
