This article mainly introduces:

Slovakia hydraulic cylinder,pressure retaining cylinder manufacturer,pressure retaining cylinder

(Slovakia pressure retaining cylinder,produced by Hebei Hengyu company）

pressure retaining cylinder are widely used in Slovakia，because of simple structure and reliable operation，excellent temperature resistance，no transmission clearance.So our company has designed pressure retaining cylinder for customers from Slovakia.

Introduction to pressure retaining cylinder:

Most of the failure of the pressure retaining cylinder is because there is a foreign body in the pressure retaining cylinder into the failure of the pressure retaining cylinder, the most problematic is that it is difficult to determine when the foreign body is into the pressure retaining cylinder. After a foreign body enters, if the outer side of the sliding surface of the piston is equipped with a seal with a lip edge, then the lip edge of the seal can scrape the foreign body when working, which is beneficial to avoid scratching. However, the piston equipped with 0-shaped sealing ring has a sliding surface at both ends, and foreign bodies are sandwiched between this sliding surface, which is easy to form scars.

The pressure retaining cylinder should be used as far as possible to avoid the transverse force, sometimes the piston rod to bear the transverse load is too large, especially do not force or pull the pressure retaining cylinder, bite. Elimination method: When installing the pressure retaining cylinder, ensure that the axis position of the pressure retaining cylinder is consistent with the direction of movement; Make the load borne by the pressure retaining cylinder as far as possible through the pressure retaining cylinder axis, to avoid the phenomenon of eccentricity.

When the pressure retaining cylinder is repaired, its inner and outer diameter and roundness should be accurately measured. If the inner hole of the pressure retaining cylinder is badly worn, it can be repaired by grinding the mandrel or honing on the boring machine. If the piston is worn, it can be repaired by electroplating, and serious wear should be replaced.

The cavitation of the pressure retaining cylinder has a great influence, and to avoid it, it is necessary to use the hydraulic oil reasonably and ensure the quality of the hydraulic oil. If the anti-foam property of the oil is poor, it is easy to produce foam, resulting in cavitation. Secondly, the change frequency of oil pressure is too fast and too high, which will also directly cause the formation of bubbles and accelerate the rupture rate of bubbles. The test shows that the speed of cavitation will be accelerated in the part with high frequency of pressure change. For example, at the inlet and outlet of the pressure retaining cylinder, due to the relatively high frequency of pressure changes, the degree of cavitation is also relatively higher than that of other parts. In addition, overheating of the oil will also increase the probability of cavitation.

Answers to some questions about pressure retaining cylinder:

How to calculate the hydraulic cylinder pressure? How much pressure can put up how much weight?
If you want to calculate the pressure of the cylinder, you must know the inner diameter of the cylinder, if the piston rod is needed to lift the weight, it should be: cylinder (no piston rod end) pressure = load (4000N) ÷{(PI /4)X the square of the cylinder diameter (mm) ", it has nothing to do with the piston rod diameter, the rod diameter of the piston rod is only related to the stability of the cylinder. The pressure inside the cylinder should be p=F/S=400×10/(3.14×(0.5×25)×(0.5×25))=8.15MPa which means that you need to provide at least that much pressure to complete the operation.

What is the cause of the deep scratch of the cylinder?
The following reasons can cause the cylinder to be scratched. 1: Hydraulic oil containing particulate impurities into the hydraulic cylinder, these particulate impurities stuck between the piston rod and the guide ring (or stuck between the piston and the inner wall of the cylinder), when the piston movement in the cylinder will scratch the piston rod, the phenomenon of the inner wall of the cylinder, the more particles, the larger the scratch marks the deeper and more obvious. 2: The body of the cylinder itself. Due to assembly or design reasons, the coaxial error between the piston rod, piston, cylinder, guide ring and other parts is too large, or the cylinder, piston rod straightness error is too large, so that the piston rod and the guide ring interference between the cylinder, this mechanical interference will certainly lose the piston rod or cylinder wall.