The sealing performance test of the cosmetic pump head is an important step to ensure that the product does not leak during use and storage.

Air tightness test:

Test purpose: The air tightness test is used to verify the sealing of the pump head when pressed to ensure that gas leakage will not occur when the pump head is not in use.

Testing device: Use special air tightness testing equipment, usually including a closed test chamber, barometer, etc.

Test steps: Install the pump head on the test equipment, apply a certain pressure and observe for a certain period of time to check whether there is gas leakage.

Liquid tightness test:

Test purpose: The liquid tightness test is used to verify the tightness of the pump head in the liquid state to ensure that the liquid will not leak when not in use.

Testing device: Use special liquid tightness testing equipment, usually including a closed testing chamber, liquid storage system, etc.

Test steps: Install the pump head on the test equipment, inject liquid into the liquid storage system, apply a certain pressure and observe for a certain period of time to check whether there is liquid leakage.

pressure test:

Test purpose: The pressure test is used to verify the sealing performance of the pump head under a certain pressure to ensure that leakage will not occur under normal use conditions.

Test Apparatus: Use specialized pressure testing equipment, which usually includes a system capable of applying pressure and a mounting device for the pump head.

Test steps: Install the pump head on the test equipment, apply a certain pressure, and observe for a certain period of time to check whether there is leakage.

Temperature resistance test:

Test purpose: The temperature resistance test is used to verify the sealing performance of the pump head under different temperature conditions to ensure that stable performance can be maintained under different ambient temperatures.

Test device: Uses a dedicated temperature control system, usually an incubator or temperature change device.

Test steps: Install the pump head on the test equipment, control the temperature within a certain range, and conduct a series of tests to check whether the sealing performance of the pump head is affected by temperature changes.

Humidity test:

Test purpose: The humidity test is used to verify the sealing performance of the pump head under different humidity conditions to ensure that stability can be maintained in a humid environment.

Test setup: Use a dedicated humidity control system, usually a humidity control box or humidity changing device.

Test steps: Install the pump head on the test equipment, control the humidity within a certain range, and conduct a series of tests to check whether the sealing performance of the pump head is affected by changes in humidity.

User simulation test:

Test purpose: The user simulation test is designed to simulate the sealing performance of the pump head under actual usage conditions, taking into account the different pressing force and frequency that the user may apply.

Test device: By using a specially designed test bench, the user's pressing action is simulated, and combined with air tightness and liquid tightness testing.

Test steps: Install the pump head on the test equipment, and observe the sealing performance of the pump head under different conditions by simulating the user's pressing action.

Persistence test:

Test purpose: The durability test is used to simulate the performance of the pump head during long-term use to ensure that it can maintain excellent sealing performance throughout the product life.

Test device: simulate actual usage conditions by running the pump head for a long time.

Test steps: Repeat air tightness and liquid tightness tests within a certain period to evaluate the performance changes of the pump head during long-term use.