The performance of bottle cap mainly includes opening torque, thermal stability, drop resistance, leakage and sealing performance. The evaluation of sealing performance and the opening and tightening torque of the bottle cap is an effective way to solve the sealing performance of the plastic anti-theft bottle cap. According to different purposes of bottle caps, there are different provisions on the measurement methods of non gas cap and gas cap. Cut off the anti-theft ring (strip) of the bottle cap without air cap to seal it with a rated torque of not less than 1.2NM, test it with a seal tester, pressurize it to 200kPa, keep the pressure under water for 1 minute, and observe whether there is air leakage or tripping; Pressurize the cap to 690kPa, keep the pressure underwater for 1 minute, observe whether there is air leakage, raise the pressure to 1207kPa, keep the pressure for 1 minute, and observe whether the cap is tripped.
Post time: Jun-25-2023