News Center
Hydraulic cylinder manufacturer introduces the solution for sealing ring rubber extrusion
Release time:
2023-05-30
According to the hydraulic cylinder manufacturer, one of the common problems with sealing rings is the extrusion of rubber. The current solution is to place a certain thickness of red copper pad in the circumferential direction of the back pressure surface of the sealing ring. In this way, the sealing ring is already compressed in the circumferential direction before being subjected to force, allowing it to rest on the static pressure shoe body, while the red copper pad precisely blocks the gap.
According to the hydraulic cylinder manufacturer, one of the common problems with sealing rings is the extrusion of rubber. The current solution is to place a certain thickness of red copper pad in the circumferential direction of the back pressure surface of the sealing ring. In this way, the sealing ring is already compressed in the circumferential direction before being subjected to force, allowing it to rest on the static pressure shoe body, while the red copper pad precisely blocks the gap.
The hydraulic cylinder manufacturer explained that this is mainly because the strength of the copper pad is relatively high, which can effectively prevent the occurrence of rubber extrusion problems. At the same time, due to the presence of a lubricating oil film between the copper gasket and the cylinder wall, better lubrication conditions can be achieved, which will not cause damage to the sealing ring. Of course, we not only need to add a certain thickness of red copper pad in the circumferential direction of the sealing ring, but also add a certain thickness and width of red copper material in the bottom circumference to achieve better results.
So, if we analyze the force angle at this time, we will find that in this situation, the rubber material in the circumferential direction cannot be extruded. The hydraulic cylinder manufacturer believes that this is because under the action of axial force, the sealing ring is pressed against the red copper plate, which then adheres to the extrusion shoe. At the same time, the compression force increases with the increase of axial force. This not only prevents the extrusion of the adhesive, but also improves the service life of the sealing ring.
The hydraulic cylinder manufacturer introduced that if the working environment temperature is relatively high, such as in summer, the bearing temperature will also significantly increase. If the rubber is exposed to this condition for a long time, it is likely to experience aging phenomena, such as shrinkage and cracking, which can cause sealing failure.
The hydraulic cylinder manufacturer suggests that in actual work, we should promptly cool down the axial hydraulic cylinder. Usually, the cooling water discharged from the top cylinder can be used to solve this problem, which is both simple and effective.
Related information
Quick Navigation
Company address: No.18 Jingtian Road, Hudai Industrial Park, Binhu District, Wuxi City, Jiangsu Province (Zhangshe Industrial Park)
Copyright © 2023 Jiangsu Juhongju Machinery Manufacturing Co., Ltd 丨 Business license
