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Discussion on the development process of packaging sealing performance testing

Date: 2021-12-28 13:04
Views: 760
Abstract:

Discussion on the development process of packaging sealing performance testing

Development of sealing test at home and abroad
Sealing test has long been used in military products. Sealing is one of the important measures to ensure the reliability of military products after long-term storage. Sealing test is an effective test to check product leakage For military products with poor sealing, especially for those with chemical agents, after being exposed to the harmful environmental effects such as humidity, salt fog and mold during transportation and storage, the following adverse effects will occur: the product charge decomposes after moisture absorption, which makes the function unreliable, and even leads to misfire: long term contact with moisture, salt spray, mold and other harmful environmental effects Salt spray accelerates the electrochemical process of metal parts: mold invasion affects product safety; explosion or abnormal leakage of combustion gas affects the combat power of weapons
Like other environmental tests, sealing test is necessary for highly reliable components and military equipment. Therefore, the international standard has carried out the research on the test method of this project very early. IEC standard 68-2-17 tests q-seal, which specifies that t tests are applicable to different applications and test procedures under different conditions. Sealing test is widely carried out in the electronic industry in China, such as sealing test for various semiconductor devices, integrated circuits, relays and other vacuum components. However, in the packaging industry, the sealing test is rarely carried out. Generally, it only depends on manual detection or immersion test. In recent years, with the development of economy and the progress of science and technology, people put forward higher and higher requirements for the performance and quality of packaging parts. Some products also put forward corresponding national standards for their sealing, and some organizations have also carried out research work in this field