Fix the assembled bottle or jar on the special fixture […]
Fix the assembled bottle or jar on the special fixture of the torque meter, rotate the cover by hand, and take the displayed data on the torque meter as the standard to achieve the required test force; the corresponding torque value of the thread diameter should conform to the normative appendix Table of rules. There is no slipping in the vacuum bottle and lotion bottle where the screw teeth are subjected to the specified rotational torque.
Low temperature test requirements:
Vacuum bottles and lotion bottles filled with water (particle size of insolubles should not be greater than 0.002mm), put them in the refrigerator at -10 ° C ~ -15 ° C, take them out after 24 hours, and test for no cracks or deformation after 2 hours of recovery at room temperature. , Discoloration, leakage of paste, water leakage and other phenomena.
High temperature test requirements
Vacuum bottles and lotion bottles filled with fresh water (particle size of insolubles should not be greater than 0.002mm), placed in a thermostat + 50 ° C ± 2 ° C, removed after 24 hours, and tested at room temperature for 2 hours without cracking or deformation , Discoloration, leakage of paste, water leakage and other phenomena.
Plastic container strength:
Plastic container at room temperature 20 ° C ± 5 ° C, filled with fresh water and dropped freely from a height of 1.0m once, on the cement floor, no leakage; PP, PET, PET-G, SAN, PMMA materials, After the drop test, 15% of the appearance is allowed to break without any functional impact. (Except for PMMA lotion bottles)
Ejection volume, volume, first liquid discharge:
The bottle contains 3/4 colored water or solvent. The pump head is locked with the bottle. Press the pump head 3 to 9 times to produce liquid. The discharge volume and volume are within the set requirements.
(1) Dispensing amount: Put the measuring cup on the electronic scale smoothly. After returning to zero, spray the liquid in the container. The weight of the ejected liquid ÷ the number of ejections = the amount of ejection. Deviation, the average allows 5-10% deviation. (The discharge amount is based on the type of pump selected by the customer or the customer's explicit requirements)
(2) Bottle capacity: Put the product to be tested on the electronic scale steadily. After returning to zero, pour water in the container, and use the electronic scale to display the data as the test volume. The test data must meet the design requirements