Quality inspection items
Quality inspection project process
We have professional quality inspection equipment. Adhering to the principle of ensuring customer satisfaction, we carefully handle each product with a sense of social responsibility.
1.Humidity and heat resistance aging performance test
Set specific temperature and humidity conditions and duration for the test.
2.Negative pressure sealing test
Start the vacuum machine, evacuate the sealed tank to the preset negative pressure (such as -0.08 MPa) and maintain it for a certain period of time.
3.High-temperature cooking performance test
Seal the bag opening with a heat sealing machine and place it in the high-temperature steaming pot. Set the steaming conditions.
4.Peel strength test
Manually peel off a small section of the composite layer, then stretch it at a constant speed, and record the separation value of the composite layer.
5.Heat sealing strength test
Place the unsealed ends of the strip sample on the fixture, so that the edge seal is in the middle. Stretch until the edge seal is torn.
6.Hot sealing parameter process verification
Identify the optimal combination of temperature, pressure and time that can achieve the best sealing effect.
7.Impact toughness test
By systematically increasing the quality of the dart heads or the drop height, the energy required to break 50% of the samples was measured.
8.Dynamic friction coefficient test
Place the film sample flat on the instrument platform, and move the dedicated slider forward uniformly on it.
9.Positive pressure sealing test
Immerse the inflated bag in water or monitor the pressure retention through sensors.
10.Inspection machine
Automatically identify and mark defects such as stains, knife marks, registration deviations, holes, and edge sealing foreign substances.
