Ho tlotsa ka mafura ka kakaretso ho loketse lits'ebetso tsa lebelo le tlase ho isa bohareng moo mocheso o sebetsang oa bering o ka tlase ho mocheso o lekantsoeng oa grease. Ha ho na mafura a thibelang khohlano a loketseng lits'ebetso tsohle. Setlolo se seng le se seng se na le ts'ebetso le litšobotsi tse fokolang feela. Grease e na le oli ea motheo, thickener le additives. Hangata ho na le oli ea motheo ea petroleum e teteaneng ka sesepa se itseng sa tšepe. Lilemong tsa morao tjena, li-thickeners tsa organic le tsa inorganic li kentsoe oling ea maiketsetso. Letlapa la 26 le akaretsa sebopeho sa mafura a tloaelehileng. Letlapa la 26. Metsoako ea Grease Base Oil Thickener Additive Grease Mineral Oil Synthetic Hydrocarbon Ester Substance Perfluorinated Oil Silicone Lithium, Aluminium, Barium, Calcium le Compound Sesepa E sa nkhang hamonate (inorganic) likaroloana Sekhomaretsi (letsopa), carbon black, silica sesepa-free, PTFE (organic) polyurea compound rust inhibitor dae tackifier metal passivator antioxidant anti-wear feteletseng khatello ea additive calcium-based le aluminium-based greases li na le ho hanyetsa metsi ka tsela e babatsehang, E loketse lisebelisoa tsa indasteri tse hlokang ho thibela ho kenella ha mongobo. Li-grease tse thehiloeng ho lithium li na le ts'ebeliso e mengata 'me li loketse lits'ebetso tsa indasteri le li-bearings tsa mabili.
Lioli tse entsoeng ka maiketsetso, tse kang esters, organic esters le silicones, ha li sebelisoa le li-thickeners le li-additives tse sebelisoang hangata, mocheso o phahameng oa ho sebetsa hangata o phahametse mocheso o phahameng oa ho sebetsa oa oli e entsoeng ka petroleum. Thempereichara ea ho sebetsa ea mafura a maiketsetso e ka tloha ho -73°C ho ea ho 288°C. Lintlha tse latelang ke litšoaneleho tse akaretsang tsa li-thickeners tse sebelisoang hangata ka oli e thehiloeng ho petroleum. Letlapa la 27. Litšobotsi tse akaretsang tsa li-thickeners tse sebelisoang ka oli e entsoeng ka oli ea petroleum Thickeners Tloaelo ea ho Lahla Boemo bo phahameng ba Mocheso Ho hanyetsa Metsi Ho sebelisa li-thickeners ho Lethathamo la 27 ka li-synthetic hydrocarbon kapa oli ea ester-based, mocheso o phahameng oa ho sebetsa o ka finyelloa Eketsa hoo e ka bang 10 ° C.
°C °F °C °F
Lithium 193 380 121 250 e ntle
Lithium complex 260+ 500+ 149 300 e ntle
Composite aluminium base 249 480 149 300 e ntle haholo
Calcium sulfonate 299 570 177 350 e ntle haholo
Polyurea 260 500 149 300 E ntle
Tšebeliso ea polyurea joalo ka motenya ke e 'ngoe ea lintlafatso tsa bohlokoahali tšimong ea ho tlotsa ka lilemo tse fetang 30. Mafura a polyurea a bonts'a ts'ebetso e ntle haholo lits'ebetsong tse fapaneng tsa ho jara, 'me ka nako e khuts'oane, e se e tsejoa e le bolo e nang le mafura a pele. Mocheso o tlase Tlas'a maemo a tlase a mocheso, torque ea ho qala ea li-bearings tse tlotsitsoeng ka grease e bohlokoa haholo. Mafura a mang a ka sebetsa ka mokhoa o tloaelehileng feela ha ho beleha ho ntse ho sebetsa, empa ho tla baka khanyetso e feteletseng ho qala ho beha. Mechineng e meng e menyenyane, e ka 'na ea se ke ea qala ha mocheso o le tlaase haholo. Sebakeng se joalo sa ho sebetsa, ho hlokahala hore grease e be le litšobotsi tsa mocheso o tlase o qalang. Haeba mocheso oa mocheso o sebetsang o pharaletse, mafura a maiketsetso a na le melemo e totobetseng. Mafura a ntse a ka etsa hore torque e qalang le e tsamaeang e be nyane haholo mochesong o tlase oa -73°C. Maemong a mang, mafura ana a sebetsa hantle ho feta mafura tabeng ena. Ntlha ea bohlokoa ka grease ke hore ho qala torque ha se hakaalo hore ke ts'ebetso ea ho lumellana ha mafura kapa ho sebetsa ka kakaretso. Ho qala torque ho tšoana le ts'ebetso ea ts'ebetso ea motho ka mong ea mafura a itseng, 'me e khethoa ke boiphihlelo.
Mocheso o phahameng: Moeli o phahameng oa mocheso oa likhalase tsa morao-rao hangata ke mosebetsi o pharaletseng oa botsitso ba mocheso le ho hanyetsa oxidation ea oli ea motheo le katleho ea li-oxidation inhibitors. Mocheso oa mocheso oa mafura o khethoa ke sebaka se theohelang sa mafura a mafura le ho hlophisoa ha oli ea motheo. Letlapa la 28 le bonts'a mefuta e fapaneng ea mocheso oa mafura tlas'a maemo a fapaneng a oli. Ka mor'a lilemo tsa liteko tsa li-bearings tse tlotsitsoeng ka mafura, mekhoa ea eona ea matla e bontša hore bophelo ba mafura a tlotsang bo tla fokotseha ka halofo bakeng sa keketseho e 'ngoe le e 'ngoe ea 10°C ea mocheso. Ka mohlala, haeba bophelo ba tšebeletso ea mafura ka mocheso oa 90 ° C ke lihora tse 2000, ha mocheso o nyolohela ho 100 ° C, bophelo ba tšebeletso bo fokotsehile hoo e ka bang lihora tse 1000. Ka lehlakoreng le leng, ka mor'a ho theola mocheso ho 80 ° C, bophelo ba tšebeletso bo lebeletsoe ho fihla lihora tse 4000.
Nako ea poso: Jun-08-2020