Lintho tsa motheo tsa Lubricant
NLGI ea grease ke eng ha E fihla ho grease?
National Lubricating Grease Institute (NLGI) e thehile mofuta o itseng oa maemo bakeng sa mafura a tlotsang. Nomoro e tsitsitseng ea NLGI (e tsejoang e le "NLGI grade") e tloaelehileng bakeng sa tekanyo ea boima bo lekanyelitsoeng ba mafura a sebelisetsoang ho tlotsa. Nomoro e kholoanyane ea NLGI e bolelang hore mafura a tiile ho feta / a teteaneng.
Consistency ke tekanyo ea thepa ea mantlha ea grease e bonts'ang ho thatafala ha mafura, e ka fetoloang ka ho fetola litaba tse teteaneng.
Nomoro ea ho tsitsa ea NLGI feela ha ea lekana bakeng sa ho hlakisa mafura a hlokoang ke ts'ebeliso e itseng. Kamehla sheba bukana ea mong'a hao bakeng sa mofuta o khothaletsoang oa grease.
Tafole e latelang e bonts'a likarolo tsa NLGI mme e bapisa kereiti ka 'ngoe le lihlahisoa tsa lapeng tse ts'oanang.
| NLGI grade ( National Lubricating Grease Institute) linomoro tsa NLGI tse tsitsitseng | |||
| NLGI | ASTM e sebelitse (liropo tse 60) | Ponahalo | Analoge ea lijo tse lumellanang |
| ho kenella ka 25 °C | |||
| 000 | 445-475 | mokelikeli | oli ea ho pheha |
| 00 | 400-430 | semi-fluid | apole sauce |
| 0 | 355-385 | e bonolo haholo | mosetareta o mosootho |
| 1 | 310-340 | bonolo | peista ea tamati |
| 2 | 265-295 | "tloaelehileng" mafura | peanut butter |
| 3 | 220-250 | tiileng | ho khutsufatsa meroho |
| 4 | 175-205 | e tiileng haholo | yogurt e halikiloeng |
| 5 | 130-160 | ka thata | boreleli pâté |
| 6 | 85-115 | ka thata haholo | chisi ea cheddar |
NLGI Kereiti 000-NLGI 0 grease
Kopo :NLGI Grade 000-NLGI 0 e khothaletsoa bakeng sa khatello e phahameng, mosebetsi o boima le sistimi e koetsoeng.
Melemo: Ts'ebetso e ikhethang ea lubricity, pompo e ntle, phallo e ntle ea mocheso.
Go tlhoka mesola: Ho bonolo ho hlaha karohano ea oli.
NLGI 1-2
Ka tloaelo NIGI 2 ke mokhoa o tloaelehileng le o tsebahalang haholo ho li-grease tse ngata, ke ligrisi tse tloaelehileng. Empa lits'ebetsong tse sebetsang, ts'ebeliso e fapaneng kapa lisebelisoa tse fapaneng li tla hlokahala mafura a fapaneng a NLGI.
Melemo: Mefuta e mengata ea likopo, botsitso bo botle ba colloidal
Kereiti e tsitsitseng ea NLGI ≠Viscosity
Customer ask :ke batla grease e le 'ngoe e tenya...
Fektheri ea Lubircant : Na u batla mafura a "thata" kapa "grease" ho feta?
Customer: Phapang ke efe pakeng tsa tse peli?
Pele limaraka tsa NLGI (Consistency &Penetration) ke tsa lihlahisoa tsa Grease feela
'Me viscosity ke ea ho tlotsa oli kapa oli ea motheo ea lihlahisoa tsa mafura.
Limaraka tsa NLGI li khetholla mafura a bonolo kapa a thata, a emela boemo ba ponahalo ea mafura.
viscosity e beha viscosity ea oli ea botlaaseng ba grease, E khetholla viscosity ea grease, Ha viscosity e phahame, 'me mafura a khomarela ho feta.
Ka tloaelo li-grease tse 2 li ka ba le kereiti e tšoanang ea NLGI empa li-viscosity tsa oli e fapaneng haholo, athe tse ling tse peli li kanna tsa ba le viscosity e ts'oanang ea oli empa limaraka tse sa tšoaneng tsa NLGI, ke boemo bo tloaelehileng lihlahisoa tsa mafura.
Ke kahoo re ileng ra tlameha ho utloisisa hantle tlhoko ea 'nete ea bareki.