In the hydraulic press system and its components, the role of the design and placement of the sealing device and the sealing element is to prevent the leakage of the working medium and the intrusion of external dust and foreign matter. Therefore, the selection of O-ring seals and their sealing effect directly affect the performance of the product. The O-ring is sealed by mounting in the groove and being compressed by the mating part to generate elastic contact pressure. Therefore, the compression rate is the main design parameter, and its size directly affects the sealing performance and life. The compression rate is small, the sealing is not good, and it is easy to turn over and bite the edge under the action of oil pressure. Large compression rate, increased friction resistance, increased contact pressure, easy to produce fracturing, deformation, distortion, assembly difficulties.
SKL frame type guide rail precision hydraulic forming machine
In the hydraulic press system, there are often many process holes, especially to design and manufacture the whole box or valve block process holes, and there are two situations when it must be blocked after the completion of manufacturing: one is that it does not need to be opened forever, and the other is that it often needs to be opened after sealing. The former is blocked by welding. If the process hole is 8mm, the process mouth is expanded, the small cylindrical head is filled, and the welding is dead, and the direct burning and welding of the hydraulic press is easy to drop debris into the process hole; If the process is 10mm, the hole will be properly expanded, do a small cylinder with a step into the process hole, if often open the process hole can be threaded, metal pad plug, threaded ball plug, cone plug, etc.
O-shaped rubber sealing ring has the advantages of simple structure, good sealing performance, low friction, small groove size, easy manufacturing, etc., so it is widely used in hydraulic and pneumatic components, hydraulic press system O-ring high-pressure sealing joint valve block process orificium high-pressure sealing.
