Vansim (Dongguan)Hardware Products Co., Ltd.
Purpose of airtightness test
The liquid cooling plate is an important component of the night cooling system, and any leakage can cause serious accidents. Before shipment, the night cooling plate must undergo 100% air tightness testing to ensure its reliability during use.
At present, there are many methods for airtightness testing, including immersion leak detection, pressure leak detection, and helium mass spectrometer leak detection. Each method has its own scope of application and advantages and disadvantages. In the testing process, the appropriate leak detection method and gas source should be selected according to the actual situation and requirements.
Immersion method for leak detection
After filling the liquid cooling plate with a certain pressure of gas, seal the inlet and outlet of the liquid cooling plate, immerse the entire plate in water, and visually observe whether there are bubbles overflowing from the surface of the liquid cooling plate to determine whether the plate is leaking.
Advantages: 1. Easy to operate, low equipment and production investment costs, 2. Intuitive detection, can quickly and accurately identify leaks for repair.
Disadvantages: 1. It requires manual judgment and there is a possibility of manual omission. 2. The product may be soaked in water and requires removal of water stains.
Detection capability: 10-5Pa * m3/s
Pressure method for leak detection
For a closed circuit, compressed air is filled into its volume to achieve the required pressure for detection. Assuming there is no leakage in the closed circuit, the internal pressure of the closed circuit will remain at the detection pressure during the detection period; If the container leaks, its internal pressure will definitely not be equal to the detection pressure. By detecting the pressure changes during this period, the leakage parameters of the sealed container can be derived.
Advantages: 1. Easy to operate, high efficiency, low equipment and production input costs. 2. Dry testing does not affect the product.
Disadvantages: 1. Can only make overall judgments, unable to identify specific leakage points. 2. Easy to be influenced by the surrounding environment, leading to misjudgments.
Detection capability: 10-5Pa * m3/s
// CONTACT US
Didn'T Find The Service You Want?
For inquiries about our products, please email to us and we will be in touch within 24 hours.
We Support Customization
Continue To Create Greater Value For Customers
Contact Us
No. 10, Minying West Road, Hengli Town, Dongguan City, China 523390