The Influence of Temperature on the Mechanical Properties of the Surface Layer of a Radiationally Strengthened Fluoropolymer

Alisin, V. V.; Albagachiev, A. Yu.; Erofeev, M. N.; Yudkin, V. F.

doi:10.3103/s1052618823040039

Cited by 7 publications

(3 citation statements)

References 12 publications

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“…The friction pair for tests consisted of a steel hardened bushing 40X and from radiationmodified fluoroplastic F4M, obtained by thermal radiation treatment of fluoroplastic by ionizing gamma radiation according to the technology, and from carbon-containing material Hardcarb TP [16]. The test sample in the form of a disk is made of F4M and Hardcarb TP.…”

Section: Methodsmentioning

confidence: 99%

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Carbon-carbon composite material in friction units when lubricated with hydraulic fluid

Roshchin,

Alisin

2024

E3S Web Conf.

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The paper deals with the issues related to the friction of carbon-carbon composite against steel in the medium of hydraulic fluid. Variation of friction coefficient from load, speed and temperature is analyzed. Comparison of antifriction properties of Hardcarb TP material with fluoroplastic modified by radiation treatment is performed. It is established that under the conditions of the experiments, the carbon composite has a higher friction coefficient than the fluoroplastic, but acceptable (f = 0.12) for use in friction units. Hardcarb TP material is promising for application in sliding friction friction units in lubrication with AMg-10 working fluid under conditions of increased requirements for the reliability and service life of hydraulic pumps.

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Section: Methodsmentioning

confidence: 99%

“…Radiation hardening technology is used for hardening of PTFE [15]. The mechanical properties of radiation-hardened PTFE have been investigated [16]. However, the low wear resistance of PTFE compositions limits their application.…”

Section: Introductionmentioning

confidence: 99%

Carbon-carbon composite material in friction units when lubricated with hydraulic fluid

Roshchin,

Alisin

2024

E3S Web Conf.

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“…Interest in fluoroplastic-based materials is explained by their unique anti-friction properties. The mechanical characteristics of fluoroplastic can be improved by radiation treatment [15,16]. PTFE seals are used in pumps operating in hydraulic fluids and their performance depends on temperature and load.…”

Section: Introductionmentioning

confidence: 99%

Friction of fluoroplastic with steel in a hydraulic fluid medium when transient mode

Alisin

2024

E3S Web Conf.

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The article considers the issues of experimental research of the antifriction properties of fluoroplastic seals of piston pump hydraulic systems in a transient friction mode. The statement about the influence of frictional heating on the tribological properties of the seal is substantiated. Model experiments are used to study the friction coefficients at the moment of changing the direction of the contacting surfaces movement and the transient period from the moment of starting from a standstill to the steadystate friction mode. The experiments were carried out under conditions of heating the hydraulic fluid to the maximum temperature. Particular attention is paid to the change in the friction coefficient with increasing load-speed characteristics. The limiting contact pressures that ensure trouble-free operation of a seal made of radiation-modified fluoroplastic have been determined.

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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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The Influence of Temperature on the Mechanical Properties of the Surface Layer of a Radiationally Strengthened Fluoropolymer

Cited by 7 publications

References 12 publications

Carbon-carbon composite material in friction units when lubricated with hydraulic fluid

Carbon-carbon composite material in friction units when lubricated with hydraulic fluid

Friction of fluoroplastic with steel in a hydraulic fluid medium when transient mode

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

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