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unidirectional cylinder Sold to Australia

Release time:2023-11-07 17:47:52 Hits: Current position: Home > News

This article mainly introduces:

Australia hydraulic cylinder,unidirectional cylinder manufacturer,unidirectional cylinder

Australia unidirectional cylinder

(Australia unidirectional cylinder,produced by Hebei Hengyu company)

unidirectional cylinder are widely used in Australia,because of clever hydraulic energy conversion,simple structure and reliable operation,excellent temperature resistance.So our company has designed unidirectional cylinder for customers from Australia.

Introduction to unidirectional cylinder:

The commonly used buffer structure of the unidirectional cylinder is composed of a piston boss and a unidirectional cylinder head groove. When the piston moves close to the unidirectional cylinder head, it gradually enters the groove, and the oil in the groove is extruded through the gap between the boss and the groove, which increases the oil return resistance, produces the braking effect and realizes the buffer. Generally, a buffer mechanism should be used when the pressure is above 10MP.

Under normal circumstances, the unidirectional cylinder is composed of the rear end cover, body, piston, piston rod and front end cover and other main parts. In order to prevent the working medium from leaking out of the unidirectional cylinder or from the high pressure chamber to the low pressure chamber, a sealing device (sealing ring) is arranged between the unidirectional cylinder and the end cover, the piston and the piston rod, the piston and the unidirectional cylinder, the piston rod and the front end cover. A dustproof device is also provided on the outside of the front end cover. In order to prevent the piston from impacting the end cap when it moves rapidly to the end of the stroke, the end of the unidirectional cylinder can also be provided with a buffer device. If necessary, the exhaust device should be set in order to exhaust.

Analysis of commonly used seals: The wear ring and slip ring commonly used on the unidirectional cylinder are generally made of polytetrafluoroethylene + graphite, because pure polytetrafluoroethylene is easy to produce plastic creep, which is only suitable for low pressure and low wear resistance conditions. If the sealing ring used is a composite material formed after adding graphite filler, the performance can be effectively improved, the ability to resist plastic creep is increased by 2 to 3 times, the initial deformation caused by the load is reduced by 30 to 60% : the rigidity is increased by 2 to 3 times: the dimensional stability under heat is increased by 2 times, and the hardness is increased by l0 to 15%.

In order to ensure the service life of the unidirectional cylinder, the hydraulic system must be set up effective filtration to prevent pollution, the cleanliness of the oil should meet the ISO4406 standard, and the quality of the filtration should also meet the corresponding standards in ISO. The grade requirements of the filter are performed according to the actual working conditions of the system, but the minimum requirements are not less than 19/15 in ISO4406, that is, 24μ (β10≥75) in ISO4572.

Answers to some questions about unidirectional cylinder:

What are the requirements for hydraulic cylinder assembly? ① The installation of the cylinder should be solid and reliable. In order to prevent the influence of thermal expansion, in the case of large stroke and hot working conditions, one end of the cylinder must be kept floating.② pipe connection shall not be relaxed.③ The mounting surface of the hydraulic cylinder and the sliding surface of the piston rod should maintain sufficient parallelism and perpendicality.④ The central axis of the moving cylinder should be concentric with the center line of the load force, otherwise it will cause lateral force, which is easy to wear the seal And piston damage. The greater the distance between the supporting points of the piston rod, the smaller its wear. For the hydraulic cylinder of the moving object, the installation should keep the cylinder parallel with the moving object, and the degree of non-parallelism is generally not greater than 0.05mm/m. ⑤The sealing ring should not be installed too tightly, especially the U-shaped sealing ring.

Why the injection cylinder retreating after the injection molding machine is started?
It is likely that the projected area of the molded plastic parts is large or the injection pressure set is relatively large, resulting in the expansion force exceeding the clamping force of the injection molding machine, so the mold is backward. You can do the following attempts: 1, reduce the injection force of the injection molding machine; 2, if the injection molding part can not be well formed by reducing the injection force, it is recommended to install the mold to a larger injection molding machine.

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