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Influence of contact parameters on the tribological behaviour of various graphite/graphite sliding electrical contacts
Poljanec, Dejan (Avtor), Kalin, Mitjan (Avtor), Kumar, Ludvik (Avtor)

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URLURL - Izvorni URL, za dostop obiščite https://www.sciencedirect.com/science/article/pii/S004316481830084X?via%3Dihub Povezava se odpre v novem oknu

Izvleček
Sliding electrical contacts are used in devices for the conduction of electrical power or the electrical signals between stationary and moving parts. The most widely used electrical-sliding system is still the conventional slip ring and brush assembly. In the last decade, the lifetime of ring-brush contacts was extended through the use of better contact-material combinations and design improvements. However, the extremely rapid electrification of many more components has put severe demands on this extended lifetime. This paper presents a novel, patented design for two sliding discs that allows the use of advantageous graphite/graphite contacts. In the literature there is a serious lack of understanding the performance of sliding electrical contacts with graphite/graphite pairs, which depends on the key contact parameters, as well as the influence and potential of the different available graphite materials. The normal load, the contact velocity, the electric current, and the three self-mated graphite contacts, i.e., hard carbon, electrographite and polymer-bonded graphite, were investigated. The results indicate that the contact conditions influence the performance, which is also very dependent on the graphite materials. The polymer-bonded graphite showed the best results in this study.

Jezik:Angleški jezik
Ključne besede:sliding electrical contacts, slip-ring, graphite, friction, wear, electric current
Vrsta gradiva:Članek v reviji (dk_c)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2018
Št. strani:Str. 75-83
Številčenje:Vol. 406-407
UDK:539.92:621.8(045)
ISSN pri članku:0043-1648
COBISS.SI-ID:16085019 Povezava se odpre v novem oknu
Število ogledov:426
Število prenosov:135
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Gradivo je del revije

Naslov:Wear
Skrajšan naslov:Wear
Založnik:Elsevier
ISSN:0043-1648
COBISS.SI-ID:5374213 Povezava se odpre v novem oknu

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Številka projekta:P2-0231
Naslov:Tribologija

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:drsni električni kontakti, drsni obroči, grafit, trenje, obraba, električni tok

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