Experimental investigation of polyurethane seal failure used in hydraulic system

Mahankar, Prasanna S.; Dhoble, Ashwinkumar S.; Prabhu, Raghavendra

doi:10.1016/j.engfailanal.2023.107319

Cited by 10 publications

(2 citation statements)

References 64 publications

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“…It has been established that a hydraulic drive with a combined piston seal is less sensitive to load changes than a hydraulic drive with an o-ring. In [8], experiments were conducted to study the durability of the seal on a new unit for reciprocating shaft movement with a pneumatic drive by changing the pressure from 100 to 400 bar at a shaft rotation speed of 0.15 m/s. It was found that surface temperature generated by frictional heat in the seal area was responsible for seal failure.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the tribological properties of fluoroplastics operating in a hydraulic fluid environment

Alisin,

Roshchin,

Lukyanov

2023

E3S Web of Conf.

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The issues of an increasing the wear resistance of fluoroplastics under conditions of dry friction against steel and in the environment of hydraulic fluids are discussed in this article. The statement about the prospects of radiation treatment for strengthening fluoroplastics is substantiated. Comparative tribological tests were carried out on a laboratory friction machine according to the friction scheme of the end of a cylindrical sample made of steel 40X13 on a fluoroplastic plate. It has been established that radiation-modified fluoroplastic has increased wear resistance. The antifriction properties of strengthened fluoroplastic during friction in a hydraulic fluid environment are investigated. The influence of load and speed on the friction coefficient is analyzed. Based on the study, a radiation modification of fluoroplastic rod seals of hydraulic cylinders and hydraulic piston machines is proposed, with a possible increase in wear resistance up to 4 times.

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Section: Introductionmentioning

confidence: 99%

Enhancing the tribological properties of fluoroplastics operating in a hydraulic fluid environment

Alisin,

Roshchin,

Lukyanov

2023

E3S Web of Conf.

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show abstract

“…A range of operating state parameters has been set, in which the capacity of the pump is sharply reduced. In [14], an analysis was made of the parameters that cause the destruction of the polymer seal on the shaft reciprocating movement unit by changing the pressure from 100 to 400 bar at a shaft rotation speed of 0.15 m/s. It is noted that the maximum wear and deformation was observed at a pressure of 400 bar.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of fluoroplastic seals of axial-piston pumps in relation to the operating conditions of a hydraulic drives

Alisin

2023

E3S Web Conf.

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The article considers the issues associated with the elastic and plastic properties of fluoroplastic in the state of delivery and radiation hardened. The statement about the radiation hardening of fluoroplastic improves thermal deformation characteristics is substantiated. The results of kinetic microindentation are studied in comparison with the initial state in the temperature range of 80 - 400 0C. The effect of temperature on the ratio of the work of the elasticity and plasticity forces is analyzed. Particular attention is paid to the elastic properties of fluoroplastic. The assumption is substantiated that it is possible to improve the elastic properties of fluoroplastic by radiation treatment at elevated temperatures, which are typical for high-speed axial piston pumps. On the basis of the study, it was found that the use of radiation hardening treatment of fluoroplastic is promising for increasing the durability of movable seal rings.

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Failure of protection against particle invasion in hard/soft dynamic seal: Modeling and observation

Zhou,

Zhang

et al. 2024

Engineering Failure Analysis

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Experimental investigation of polyurethane seal failure used in hydraulic system

Cited by 10 publications

References 64 publications

Enhancing the tribological properties of fluoroplastics operating in a hydraulic fluid environment

Enhancing the tribological properties of fluoroplastics operating in a hydraulic fluid environment

Mechanical properties of fluoroplastic seals of axial-piston pumps in relation to the operating conditions of a hydraulic drives

Failure of protection against particle invasion in hard/soft dynamic seal: Modeling and observation

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