i-lubricant ye-graphite. Izici ezihlukile
Okuqukethwe
Ukwakheka nezici
Kuze kube manje, ukwakheka kwamafutha e-graphite akukho ngaphansi kwemithetho eqinile. Ngisho ne-GOST 3333-80, ethathe indawo ye-GOST 3333-55 ephelelwe yisikhathi, ayisunguli ukwakheka kwenani noma ikhwalithi yezingxenye ezisetshenziswa ekwenzeni igrisi yegraphite. Izinga libonisa kuphela izici ezijwayelekile zohlobo lwamafutha e-graphite "USsA" kanye nezakhiwo ezincane ezidingekayo.
Lokhu kusetshenziswa abakhiqizi, bezama ukubunjwa futhi, ngenxa yalokho, izakhiwo zokugcina zomkhiqizo. Namuhla, izingxenye ezimbili eziyinhloko zamafutha e-graphite ziyizinto ezimbili: isisekelo samaminerali aminyene (imvamisa imvelaphi ye-petroleum) kanye ne-graphite egayiwe kahle. I-calcium noma insipho ye-lithium, ukucindezela okukhulu, i-antifriction, ukuhlakazeka kwamanzi nezinye izithasiselo zisetshenziswa njengezithasiselo ezengeziwe.
Ngezinye izikhathi i-powder yethusi yengezwa ku-graphite. Khona-ke amafutha abizwa ngokuthi i-copper-graphite. Ububanzi bagrisi ye-copper-graphite bushintshela ekuvikelweni kwesikhathi eside kwezindawo ezithintanayo ekugqwaleni ezinokugudluzwa okuncane okuhlobene. Isibonelo, i-lubricant enjalo isetshenziswa kabanzi ekuxhumekeni kwentambo kanye neziqondiso ezihlukahlukene.
Izici zamafutha e-graphite, kuye ngokubunjwa, ziyahlukahluka kakhulu. Isibonelo, izinga lokushisa elincane lapho i-lubricant ingalahlekelwa khona kakhulu izakhiwo zayo iyahlukahluka kusuka ku -20 kuya ku -50 ° C. Ubukhulu: kusuka ku-+60 (kokuthambisa kwe-UssA okulula kakhulu) ukuya ku-+450 (kuma-“graphite” wesimanje wobuchwepheshe obuphezulu).
Enye yezinto ezivelele kakhulu ze-graphite grease i-coefficient ephansi yokungqubuzana. Lokhu kufinyelelwa ngenxa ye-graphite, amapuleti namakristalu awo ezingeni lamangqamuzana acwebezela kahle kokubili kuhlobene nomunye nomunye nakwezinye izindawo, kungakhathaliseki ukuthi lezi zindawo zinjani. Kodwa-ke, ngenxa yokuqina kwamakristalu e-graphite ngamanye, lawa mafutha awanconywa ukuthi asetshenziswe kumayunithi aphikisanayo ngokunemba okuphezulu kokukhiqiza kanye nezikhala ezincane phakathi kwezingxenye ezithintanayo. Isibonelo, kuye kwafakazelwa ukuthi ukubeka "i-graphite" esikhundleni samanye ama-grease afanelekile (i-solidol, i-lithol, njll.) kuma-rolling bearings kunciphisa impilo yabo yesevisi.
I-graphite iphinde inqume izici zokuqhuba ze-lubricant. Ngakho-ke, igrisi ye-graphite isetshenziselwa ukuvikela ukuthintana kukagesi ekugqwaleni nasekukhuphukeni kwenhlansi.
Isetshenziselwa ini?
Ububanzi be-lubricant ye-graphite ngokuvamile bubanzi kakhulu. I-graphite izibonakalise kahle kumapheya avulekile okungqubuzana, lapho ijubane lokunyakaza okuhlobene kwezingxenye lincane. Ayigezwa ngamanzi isikhathi eside, ayiwomi futhi ayinciphisi ngaphansi kwethonya lezinye izici zangaphandle ezimbi.
Ezimotweni ezijwayelekile namaloli, amafutha e-graphite nawo asetshenziswa kabanzi:
- ukuxhumeka okuhlanganisiwe - ukumelana nokugqwala nokunamathela kwezintambo;
- ama-ball bearings amasondo aqondisayo - njenge-lubricant eyinhloko, iphonswa emzimbeni wama-bearings futhi ifakwe ngaphansi kwama-anthers;
- izintambo zokuqondisa kanye namathiphu - asetshenziswe ngendlela efanayo nama-ball bearings;
- ukuxhumana kwe-spline - ama-spline angaphandle nangaphakathi agcotshiwe ukuze anciphise ukuguga ngesikhathi sokunyakaza kwawo;
- iziphethu - iziphethu ngokwazo kanye ne-anti-creak substrates zigcotshiwe;
- othintana nabo - njengomthetho, lawa amatheminali ebhethri, ucingo olubi olusuka ebhethri luya emzimbeni kanye nocingo oluhle olusuka ebhethri kuya kusiqalisi;
- njenge-anti-creak layer ekuthinteni izindawo zepulasitiki nezensimbi.
Naphezu kweqiniso lokuthi namuhla imakethe inikeza anhlobonhlobo lubricant athuthuke kakhudlwana futhi kwaguqulwa, graphite isadingeka phakathi abashayeli. Ibhalansi enhle phakathi kwentengo nezici. Intengo ejwayelekile yamagremu ayi-100 we-lubricant ye-graphite ishintshashintsha cishe kuma-ruble angama-20-30, ishibhile kakhulu kunezingoma zesimanje zokuthambisa ezinezici ezithuthukisiwe. Futhi lapho izinga eliphezulu lokuvikela lingadingeki, ukusetshenziswa kwe-graphite kuyoba yisixazululo esinengqondo kakhulu.
