What is the working principle of Shenzhen sealing test equipment?Details!

Whether it is electronic equipment, the pharmaceutical industry, or automotive components, sealing testing is an indispensable part.In Shenzhen, a city of technological innovation, Hiraysi Company has received widespread attention for its excellent sealing testing equipment.So, how exactly does this device work?This article will give you an in-depth understanding and explain in detail the working principle of Shenzhen sealing testing equipment, so that you will not only have fun but also benefit a lot from the understanding process.

1. Test principle of differential pressure method

The differential pressure method is the most common among many sealing test methods.It detects the sealing performance of the equipment by measuring the pressure difference between the inside and outside of the equipment.Hirays pressure differential method sealing test equipment mainly consists of pressure sensors, test chambers and control systems.

When the test starts, the equipment first evacuates the air inside the test chamber and stops exhausting after reaching a certain vacuum level.Next, the internal pressure changes are monitored by the control system stabilization pressure sensor.If the pressure difference in the chamber remains constant within the specified time, it means that the sealing performance of the item being tested is good.On the contrary, if an obvious pressure drop is found, it indicates that the equipment has an air leakage problem.

2. Water immersion method test principle

The water immersion method is another commonly used tightness testing method.It detects tightness by immersing the test object in water and observing whether any air bubbles escape.Hiraysi's water immersion test equipment mainly includes water tanks, airtight chambers and observation windows.

During the test, the object to be tested is fixed in an airtight chamber, and then its whole body is immersed in a water tank.After applying a certain positive pressure, observe whether bubbles are generated on the surface of the object.Specifically, if there are no bubbles on the surface of the object, it means that the object has good sealing properties; if there are bubbles, it reflects that the object has air leakage points.

3. Nitrogen test principle

The nitrogen method is a high-precision sealing test method that evaluates the sealing performance of the equipment by detecting the penetration of nitrogen.Hai Ruisi's nitrogen method tightness testing equipment includes nitrogen supply system, measurement unit and data processing system.

During the test, the outside of the test object is first filled with nitrogen, and the nitrogen pressure is accurately controlled through the nitrogen supply system.Next, the measurement unit monitors the concentration difference of nitrogen inside and outside the equipment. If the nitrogen concentration inside the equipment does not change significantly, it means that the sealing performance of the equipment is good.

4. Test principle of vacuum attenuation method

The vacuum decay method mainly performs sealing testing by measuring the change in vacuum degree within the container.This method is particularly suitable for efficiently detecting small air leaks.Hiraysi's vacuum attenuation method sealing test equipment mainly consists of vacuum pumps, vacuum gauges and data processing systems.

Use a vacuum pump to evacuate the air inside the test object to a certain degree of vacuum, and then maintain it for a period of time.During this time, the device will continue to monitor changes in internal vacuum.If it is found that the vacuum degree remains stable, it indicates that the sealing is good; if the vacuum degree gradually returns to atmospheric pressure, it indicates that there is a leak.

5. Test principle of mass flow method

The mass flow method uses the mass flow of gas to detect the leakage location and amount.Hirays' mass flow method tightness testing equipment consists of mass flow meter, control valve and data processing system.

At the beginning of the test, air is introduced into the object under test through the mass flow meter, and the fluid inflow is adjusted through the control valve.During the measurement process, changes in gas flow are monitored in real time to determine the tightness.If the gas flow remains stable, it means there is no leakage in the equipment; on the contrary, if the gas flow increases significantly, it means there may be a leak in the equipment.

in conclusion

Shenzhen's sealing test equipment, especially the series of products launched by Hirays, has exquisite working principles behind its rich technologies, from differential pressure method, water immersion method, nitrogen method, to vacuum attenuation method and mass flow method. Each method has its own merits and can cope with different application needs.If you are interested in Shenzhen sealing testing equipment, or have any specific needs, you can contact Hirays Company for more professional advice and quality services.I hope that the detailed explanation in this article will give you a more comprehensive and in-depth understanding of tightness testing equipment.