Knowledge about rubber gaskets

Many people do not know about rubber sealing gaskets. Today we will introduce the relevant knowledge of rubber sealing gaskets according to the sealing mechanism and deformation equation of rubber sealing gaskets.

Mechanical equipment can be divided into two parts: static seal and dynamic seal according to the relative movement of the sealing surface, and static seal is a commonly used sealing form in daily production, such as pipeline flange, threaded connection, pressure vessel and cover seal, etc., according to the work Principle, static seal can be divided into bolt flange connection gasket seal, self-tightening seal, threaded connection rubber gasket seal and sealant seal, etc. Among them, bolt flange connection gasket is currently the most widely used static seal. Sealed form. The research work on this sealing structure mainly focuses on two aspects: on the one hand, the performance test of the sealing material, focusing on the preparation method of the material and the scientificity and accuracy of the experimental instruments and methods; A lot of analysis work has been done on various causes of seal failure. For gaskets of different materials and different forms, the factors affecting the leakage rate are studied respectively. In order to prevent fluid leakage, the basic method used is to increase the resistance of fluid flow at the sealing port. When the resistance of the medium passing through the sealing port is greater than the medium pressure difference on both sides of the sealing port, the medium is sealed. The resistance of the medium passing through the sealing port is realized by the specific pressure exerted on the pressing surface. Good for sealing.

Rubber seals are a kind of universal basic element in sealing devices, which play a very important role in the contradiction between leakage and sealing. Solve leaks and seals in man's conquest of nature. It has been an important way to promote technological progress, prevent and reduce environmental pollution. Rubber seals are a type of rubber products widely used in sealing technology. Because rubber is a valuable elastic polymer material, it has a wide temperature range, and a small stress in different media will produce a large deformation. This deformation can provide contact pressure, compensate for the leakage gap, and achieve the purpose of sealing !