Introduction:

In industrial production and daily life, the importance of sealing testing cannot be ignored.Good sealing can ensure the quality and function of the product and prevent problems such as leakage and damage.However, how to perform leakage testing?This article will introduce several common sealing testing methods to help you understand and choose the appropriate testing method.

Table of contents:

1. Pressure method sealing test

1.1 High-pressure bubble method

1.2 Pressure leakage test (water bridge pressure method)

2. Vacuum method sealing test

2.1 Vacuum belly method

2.2 Vacuum negative pressure test

3. Particle tracking method sealing test

3.1 Via device

3.2 Particle simulation

3.3 Light loss method

1. Pressure method sealing test

1.1 High-pressure bubble method

The high-pressure bubble method is suitable for sealing testing of flat or glass containers.By loading liquid and passing high-pressure gas, observe whether there are bubbles escaping from the sealing position.

1.2 Pressure leakage test (water bridge pressure method)

The pressure leakage test method is called the water bridge pressure method. It injects pressure into the object to be tested and applies auxiliary agents such as water or soapy water to the sealed area to observe whether there is leakage.

2. Vacuum method sealing test

2.1 Vacuum belly method

The vacuum belly method generates negative pressure and observes whether there is gas passing through the sealing body to detect its tightness.

2.2 Vacuum negative pressure test

The vacuum negative pressure test is to create a vacuum low pressure and use observation methods to check the vacuum status to detect leaks.

3. Particle tracking method sealing test

3.1 Via device

The particle tracking method uses special equipment to inject particle detection areas into the sealed area to observe whether particle escape occurs.

3.2 Particle simulation

Particle simulation injects particles of a specific color or texture into the system, and then observes the movement path of the particles to determine whether there is a leak.

3.3 Light loss method

The light loss method uses transparent materials to observe changes in the intensity of the incident light, and detects abnormalities to determine whether the control that causes the attenuation of the incident light has been leaked.

Summarize:

Sealing testing is a necessary step to ensure product quality, and a variety of methods can be used in different scenarios.The pressure method is suitable for material containers, the vacuum method is suitable for detecting the fitting parts, and in some special cases, the particle tracking method can be used for detection.Reasonable selection of testing methods will effectively improve the reliability and service life of the product.