Setlolo sa mafura ka kakaretso se loketse lits'ebetso tse tlase ho isa ho tse mahareng moo mocheso oa ts'ebetso oa bearing o leng ka tlase ho mocheso o lekanyelitsoeng oa mafura. Ha ho mafura a bearing a thibelang khohlano a loketseng lits'ebetso tsohle. Grease ka 'ngoe e na le ts'ebetso le litšobotsi tse fokolang feela. Grease e na le oli ea motheo, sethibela-khohlano le li-additives. Grease ea bearing hangata e na le oli ea motheo ea peterole e teteaneng ka sesepa se itseng sa tšepe. Lilemong tsa morao tjena, li-thickeners tsa tlhaho le tse sa tloaelehang li ekelitsoe oli ea motheo ea maiketsetso. Tafole ea 26 e akaretsa sebopeho sa mafura a tloaelehileng. Tafole ea 26. Lisebelisoa tsa Grease Base Oli Thickener Additive Grease Mineral Oil Synthetic Hydrocarbon Ester Substance Perfluorinated Oil Silicone Lithium, Aluminium, Barium, Calcium le Compound Sopo Likaroloana tse sa nkheng (tse sa tloaelehang) Sekhomaretsi (letsopa), carbon black, silica gel, PTFE soap-free (organic) polyurea compound rust inhibitor dae tackifier tšepe passivator antioxidant anti-wear extreme pressure additive based calcium and aluminium-based greases li na le ho hanyetsa metsi ho hoholo, li loketse lits'ebetso tsa indasteri tse hlokang ho thibela ho kenella ha mongobo. Mafura a thehiloeng ho lithium a na le ts'ebeliso e mengata 'me a loketse lits'ebetso tsa indasteri le li-bearing tsa wheel-end.
Lioli tsa motheo tsa maiketsetso, tse kang li-ester, li-ester tsa tlhaho le li-silicone, ha li sebelisoa le li-thickeners tse sebelisoang hangata le li-additives, mocheso o phahameng oa ts'ebetso hangata o phahame ho feta mocheso o phahameng oa ts'ebetso oa oli e thehiloeng ho peterole. Mefuta ea mocheso oa ts'ebetso ea grease ea maiketsetso e ka ba ho tloha ho -73°C ho isa ho 288°C. Tse latelang ke litšobotsi tse akaretsang tsa li-thickeners tse sebelisoang hangata ka oli e thehiloeng ho peterole. Tafole ea 27. Litšobotsi tse akaretsang tsa li-thickeners tse sebelisoang ka oli e thehiloeng ho peterole Li-thickeners tse Tloaelehileng Sebaka sa ho Theoha Mocheso o Phahameng Khanyetso ea Metsi Ka ho sebelisa li-thickeners tse ho Tafole ea 27 ka oli ea maiketsetso ea hydrocarbon kapa e thehiloeng ho ester, mocheso o phahameng oa ts'ebetso o ka finyelloa Eketsa ka hoo e ka bang 10°C.
°C °F °C °F
Lithium 193 380 121 250 e ntle
Setsi sa Lithium 260+ 500+ 149 300 se setle
Motheo oa aluminium o kopantsoeng 249 480 149 300 o motle haholo
Calcium sulfonate 299 570 177 350 e ntle haholo
Polyurea 260 500 149 300 E ntle
Tšebeliso ea polyurea e le setenya ke e 'ngoe ea lintlafatso tsa bohlokoa ka ho fetisisa tšimong ea ho tlotsa ka lilemo tse fetang 30. Grease ea Polyurea e bontša ts'ebetso e ntle haholo lits'ebetsong tse fapaneng tsa ho bea, 'me ka nako e khuts'oane, e se e tsejoa e le setlolo sa pele sa ho bea bolo. Mocheso o tlase Tlas'a maemo a mocheso o tlase, torque ea ho qala ea li-bearings tse tlotsitsoeng ka mafura e bohlokoa haholo. Grease e 'ngoe e ka sebetsa ka mokhoa o tloaelehileng feela ha bearing e ntse e sebetsa, empa e tla baka khanyetso e feteletseng qalong ea bearing. Mechining e meng e menyenyane, e kanna ea se qale ha mocheso o le tlase haholo. Tikolohong e joalo ea mosebetsi, ho hlokahala hore grease e be le litšobotsi tsa ho qala mocheso o tlase. Haeba mocheso oa ts'ebetso o le moholo, grease ea maiketsetso e na le melemo e totobetseng. Grease e ntse e ka etsa hore torque ea ho qala le ea ho sebetsa e be nyane haholo mochesong o tlase oa -73°C. Maemong a mang, grease tsena li sebetsa hantle ho feta li-lubricant ntlheng ena. Ntlha ea bohlokoa ka grease ke hore torque ea ho qala ha se hakaalo ts'ebetso ea ho tsitsisa grease kapa ts'ebetso e akaretsang. torque ea ho qala e tšoana le ts'ebetso ea motho ka mong ea grease e itseng, 'me e khethoa ke boiphihlelo.
Mocheso o phahameng: Moeli o phahameng oa mocheso oa mafura a sejoale-joale hangata ke mosebetsi o felletseng oa botsitso ba mocheso le khanyetso ea oxidation ea oli ea motheo le katleho ea lithibela-oxidation. Moeli oa mocheso oa mafura o khethoa ke ntlha ea ho theoha ha sethibela-mafura le sebopeho sa oli ea motheo. Tafole ea 28 e bontša mocheso oa mafura tlas'a maemo a fapaneng a oli ea motheo. Kamora lilemo tsa liteko ka li-bearing tse tlotsitsoeng ka mafura, mekhoa ea eona ea boiphihlelo e bontša hore bophelo ba mafura a tlotsang bo tla fokotsoa ka halofo bakeng sa keketseho e 'ngoe le e 'ngoe ea 10°C ea mocheso. Mohlala, haeba bophelo ba tšebeletso ba mafura mochesong oa 90°C e le lihora tse 2000, ha mocheso o nyolohela ho 100°C, bophelo ba tšebeletso bo fokotseha ho fihlela ho lihora tse ka bang 1000. Ka lehlakoreng le leng, kamora ho theola mocheso ho ea ho 80°C, bophelo ba tšebeletso bo lebelletsoe ho fihla ho lihora tse 4000.
Nako ea poso: Phuptjane-08-2020