Hardware UV paint curing pH test

1.1 Before the test, check whether the paint and coating of the sample test position are intact

1.2 Put the sample into 0.5mol/L NaOH solution and soak for 60min

1.3 After the test sample is taken out and cleaned, wipe it clean with a dust-free cloth, and check whether the sample is peeling off or paint off (both the inner and outer surfaces of the aluminum tube need to be checked)

1.4 Put the sample in the ORP solution and soak for 60 minutes

1.5 After the test sample is taken out and cleaned, wipe it clean with a dust-free cloth, and check whether the sample is peeling off or paint off (both the inner and outer pipe surfaces of the aluminum pipe need to be checked)

1.6 Put the sample in deionized water and soak for 4h (the deionized water starts to cool to room temperature from 80℃)

1.7 After the test sample is taken out and cleaned, wipe it clean with a dust-free cloth, and check whether the sample is peeling off or paint off (both the inner and outer pipe surfaces of the aluminum pipe need to be checked)

Remarks: When inspecting the appearance, if the sample has peeling off or the paint is peeled off, it will be regarded as bad, and the test fails