Plastic anti-theft caps are the common packaging forms of bottle packaging, especially in the beverage field. According to their use, they can be divided into carbonated beverage caps and non-gas beverage caps. Generally, polyolefin is used as the main raw material, and it is processed by injection molding, hot pressing and the like. Plastic anti-theft caps are required to avoid leakage problems caused by poor sealing performance, and need to be easy for consumers to open. How to properly control the opening performance of the cap is the focus of the production unit inspection, and the small series will focus on the opening performance of the plastic anti-theft cap.
According to the provisions of the national standard GB/T17876-2010 packaging container plastic anti-theft cap, the plastic anti-theft cap is made of plastic, after being packaged, it cannot be restored to its original packaging form. The opening torque is the maximum torque required to open the packaged anti-theft cover. The torsion torque is defined as the maximum torque required to break the burglar ring. The opening torque performance requirements for plastic anti-theft caps are as follows:
The opening torque test requirement is to use a capping machine to cover the rated torque that meets the capping requirements, and to stand at room temperature for 24 hours, and test the torque with a torque meter with an accuracy greater than 0.1 N•m.
For the selection of the torque meter, firstly, it must meet the accuracy requirement of 0.1N•m specified in the standard. Secondly, from the perspective of enterprise use, it is recommended to choose the program control, and can cover the dual mode of opening force and locking force, and Print function for easy recording of test results. In addition, while selecting the torque meter, it is necessary to confirm whether the test range and clamping range of the torque meter can meet the actual conditions of the torque meter and ensure the normal use of the torque meter.
The above content is organized by Jinan Pu Chuang, and we hope to help you in the quality control of enterprise products.
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