What is the air tightness testing principle of hirays seal detection system?What are the advantages of this method
Physics research has yielded the "equation of state of an ideal gas" based on the state change rules of an "ideal gas", that is: where P is the gas pressure, V is the volume of the gas, T is the temperature of the gas, and R is the gas universal constant, that is, a constant that is universally applicable to all gases (explanation: air is close to an ideal gas).The stability is very good. This equation shows that when the temperature is constant, after a certain period of time (generally greater than 20s), its inner cavity volume does not change, and if the pressure in the cavity drops by a certain value △P, it can be determined that the workpiece "leaks", and the sealing performance of the product can be determined based on the amount of leakage.This is the basic principle of using gas to test the sealing performance of workpieces.The electronic air leak detector that uses this principle for seal testing has become the fastest, most effective and most practical automatic seal testing instrument to date.
Of course, whether a workpiece is sealed or not is a relative concept. Each workpiece has a certain amount of air leakage, and absolute "no leakage" does not exist.When we say that the workpiece has no liquid leakage, we can define an air leakage rate accordingly.We use air as the medium to test most of the spare parts to ensure that there is no liquid leakage. Therefore, we cannot define that these workpieces do not leak air or other gases. We can only say how much leakage there is at a specific pressure. Air is compressible and has low viscosity, and can be collected at will, which means that the speed of air passing through the leakage point is 200-400 times higher than that of liquid.Air has essentially no surface tension and viscosity, making it easier than liquid to pass through small leaks.However, a leak that allows air to pass through is not necessarily a leak for liquids.This is why it is necessary to define a maximum allowable air leakage when using air as the medium for seal leak detection.To determine the sealing degree of the product.
Hai Ruisi'sSeal detection systemAfter years of development and running-in, it has become very mature. Now it has launched a series of specialized air-tightness testing equipment such as IP waterproof level testing equipment, wire sealing testing equipment, camera IP waterproofing level testing equipment, sports speaker waterproof testing equipment, etc. We can provide customized waterproofing, sealing, IP, and testing solutions for free.
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