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Seo U Lokelang ho se Tseba: Grease Consistency

Ho khetha ho lumellana ho nepahetseng hamafura bakeng sa kopoKe ntho ea bohlokoa, kaha mafura a bonolo haholo a ka tloha sebakeng se hlokang ho tlotsoa, ​​athe mafura a thata haholo a ka 'na a se ke a fallela libakeng tse hlokang ho tlotsoa.

Ka tloaelo, ho satalla ha mafura ho bontšoa ke boleng ba eona ba ho kenella 'me ho lekoa ho sebelisoa chate ea kereiti ea National Lubricating Grease Institute (NLGI).Nomoro ea NLGI ke tekanyo ea ho tsitsa ha grease joalo ka ha ho bonts'itsoe ke boleng ba eona bo sebelitseng.

Theteko ya ho kenae lekanya hore na khoune e tloaelehileng e oela joang ka har'a sampole ea mafura karolong ea leshome ea limilimithara.Kereiti e 'ngoe le e 'ngoe ea NLGI e tsamaellana le mofuta o ikhethileng oa boleng ba ho kenella.Maemo a phahameng a ho kenella, joalo ka a fetang 355, a bontša palo e tlase ea kereiti ea NLGI.Sekala sa NLGI se tloha ho 000 (semi-fluid) ho isa ho 6 (boloko bo tiileng joalo ka chisi ea cheddar e phatlalalitsoeng).

Botlaaseng ba viscosity ea oli le bongata ba botenya bo susumetsa haholo boemo ba NLGI ba mafura a tlotsang a phethiloeng.Li-thickeners ka har'a mafura li sebetsa joalo ka seponche, li ntša mokelikeli o tlotsang (oli ea motheo letlatsetso) ha ho sebelisoa matla.

Ha mafura a ntse a phahama, 'me mafura a hanyetsana le ho ntša lero ka tlas'a matla.Setlolo se nang le sebopeho se tlase se tla lokolla maro a tlotsang habonolo.Tšebeliso e nepahetseng ea mafura ke ea bohlokoa bakeng sa ho netefatsa hore palo e loketseng ea mokelikeli oa ho tlotsa e fanoa le ho bolokoa tsamaisong bakeng sa ho tlotsa hantle. 

A chart that lists the worked penetration scores of different NLGI grades as well as an analogy of the consistency of each grade. Grade 000 is like ketchup, Grade 00 is like yogurt, and Grade 0 is like mustard.

NLGI Mephato 000-0

Li-grease tse oelang tlas'a limaraka tsena li arotsoe ka mokelikeli ho isa ho halofo ea mokelikeli 'me li na le ponahalo e nyane ho feta tse ling.Limaraka tsena tsa grease li ka ba molemo lits'ebetsong tse koaletsoeng le tse bohareng, moo ho falla ha mafura e seng taba.Ka mohlala, lebokose la lisebelisoa le hloka mafura ka har'a sebaka sena sa NLGI ho tsoela pele ho tlatsa oli sebakeng sa ho kopana.

A chart that lists the worked penetration scores of different NLGI grades as well as an analogy of the consistency of each grade. Grade 1 is like tomato paste, Grade 2 is like peanut butter, and Grade 3 is like margerine spread.

NLGI Mephato 1-3

Setlolo se nang le sehlopha sa NLGI sa 1 se na le ts'ebetso e ts'oanang le pente ea tamati, moo mafura a nang le sehlopha sa NLGI sa 3 a nang le ts'ebetso e tšoanang le botoro.Mafura a sebelisoang haholo, joalo ka a sebelisoang ho bering ea likoloi, a ka sebelisa mafura a NLGI grade 2, a nang le ho satalla ha peanut butter.Likereiti tse ka har'a sebaka sena li ka sebetsa maemong a phahameng a mocheso le ka lebelo le holimo ho feta limaraka tsa NLGI 000-0.Litlolo tsa liberinghangata ke NLGI grade 1,2, kapa 3.

A chart that lists the worked penetration scores of different NLGI grades as well as an analogy of the consistency of each grade. Grade 4 is like hard ice cream, Grade 5 is like fudge, and Grade 6 is like cheddar cheese.

NLGI Mephato 4-6

Limaraka tsa NLGI tse arotsoeng ho 4-6 li na le botsitso joalo ka ice cream, fudge kapa cheddar chisi.Bakeng sa lisebelisoa tse tsamaeang ka lebelo le phahameng (lipotoloho tse fetang 15,000 ka motsotso) ho lokela ho nahanoa ka mafura a NLGI grade 4.Lisebelisoa tsena li na le likhohlano le mocheso o eketsehileng, kahoo ho hlokahala mafura a thata, a tsamaisang.Li-greases tse tsamaisang li sutumetsoa habonolo hole le element ha li ntse li potoloha, kahoo li lebisa ho fokotseng ho fokotseha le ho fokotseha ha mocheso.Mohlala, Nye's Rheolube 374C ke grease ea NLGI grade 4 e sebelisoang lits'ebetsong tse nang le lebelo le phahameng le mocheso o pharaletseng oa -40°C ho isa ho 150°C.Li-grease tse nang le NLGI Grade 5 kapa 6 hangata ha li sebelisoe lits'ebetsong.

 


Nako ea poso: Dec-30-2020
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