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The processing technology and sealing structure of hollow rod.
Jan 12, 2018

At present, in processing hollow rod, the main application is rolling processing technology.In the machining process, because of its surface layer have a certain amount of residual compressive stress, the reaction is advantageous to the tiny crack the surface of the hollow rod closed, at the same time also can hinder the expansion of the erosion.In this way, it is equivalent to improving the anti-corrosion resistance which is avoided, and also has a certain inhibitory effect on the fatigue crack initiation.

It can be seen that the fatigue strength of hollow rod is improved to some extent because of such processing technology.In general, the use of rolling processing technology can make its surface to form a layer of cold work hardening layer, which can reduce the grinding pair of elastic and plastic deformation of the contact surface, also strengthened the wear resistance of the piston rod.

Another advantage of using this processing technique is that it is possible to avoid burns caused by grinding.This is because the surface roughness value of the hollow rod is reduced after rolling, which can help to improve the coordination property.It can also reduce the friction damage to the sealing ring or sealing parts during the piston movement of the cylinder rod, both improve the overall service life of the equipment.

In short, this processing technique is very reasonable, and it can greatly improve the surface quality of hollow rod and make it more durable.At the same time, it should also consider its requirements for sealing.Normally the relevant factors should be taken into account when selecting the sealing ring

In fact, the determination of hollow rod seal structure mainly depends on its velocity, the pressure size, start the size of the friction, allowing leakage, temperature, viscosity of working medium, etc.In addition, it is necessary to consider the requirements of the sealing ring to the hollow rod to fit the tolerance and groove size.http://www.xhychromerod.com/