This article is provided by Jinan Saicheng Electronic Technology***.
Tightness tester is a commonly used testing equipment to test the sealing performance of films and sheets, and the following is a detailed introduction from the test principles and test methods.
The test principle of the leak tester:
After the gas of a certain pressure is filled into the sample by setting the parameters, the pressure sensor is used to detect the air pressure change inside the test sample to judge the overall sealing performance of the sample, and the pressure resistance and burst performance of the sample are tested with the specified air pressure.
Test Methods for Leak Testers:
1.Prepare the specimen. According to the requirements of the standard, the sample that meets the standard is formulated.
2.The non-acid machine is added to 200 kpa according to the rated torque sealing test test to meet the requirements of the cap, and the pressure is maintained under water for 1 min to observe whether it is gas, and then the pressure is increased to 35 pa, the pressure is maintained for 1 min, and the cover is observed to be ejected for 3
3.The carbonated cap was capped with a capping machine according to the rated torque that meets the capping requirements, the anti-theft ring was cut off, tested with a seal tester, pressurized to 690 kpa, the pressure was maintained under water for 1 min to observe whether it was gas, and then the pressure was increased to 1 207 kpa, and the pressure was maintained for 1 min to observe whether the cap was loose and popped out.
The design of the leak tester takes into account a variety of factors, such as the size, material, and structure of the film. At the same time, this equipment also has the advantage of high precision, which can meet the needs of mass production. In addition, the leak tester is easy to operate and has a wide range of applications in the industrial and food industries.
Summary. The tightness tester uses the detection method of positive pressure method to detect the sealing performance of packaging materials, which greatly improves the accuracy and precision of the test results and provides very important support for the development of the industry.