I-brake fluid iba yiqhwa ngaliphi izinga lokushisa?
Okuqukethwe
Iphuzu lokuqandisa uketshezi lwamabhuleki ngokwezinga
Kubalulekile ukuqonda ukuthi ayikho iresiphi eqinile yokukhiqiza uketshezi lwamabhuleki. Izinga elakhiwe futhi lasetshenziswa uMnyango Wezokuthutha wase-US (DOT) lichaza izidingo zoketshezi ezimbalwa zamasistimu amabhuleki asebenza ngogesi. Kodwa azikho izilinganiso eziqinile noma amafreyimu.
Isibonelo, endaweni yokubilisa ye-brake fluid, kuboniswa umkhawulo ophansi kuphela. Ngomkhiqizo ovame kakhulu we-DOT-4 e-Russian Federation, lesi sibalo asikho ngaphansi kuka-+230 ° C. Empeleni, iphoyinti lokubilisa langempela le-premium DOT-4 brake fluid elinganothiswanga ngamanzi livamise ukudlula +260°C.
Isimo esifanayo sibhekwa ngendawo yokuthela. Izinga elijwayelekile alilawuli indawo yokuqandisa ngokwalo, kodwa i-viscosity ku -40 ° C nesithwathwa. Ithebula elingezansi lifingqa ubukhulu be-viscosity obuvumelekile kuleli zinga lokushisa loketshezi lwamabhuleki lwamanje.
| IDOTI-3 | 1500 cSt |
| IDOTI-4 | 1800 cSt |
| IDOTI-5 | 900 cSt |
| IDOTI-5.1 | 900 cSt |
Wonke lawa manani ayamukeleka ekusebenzeni kwamasistimu amabhuleki adizayinelwe uketshezi oluthile emazingeni okushisa afika ku -40°C. Ngokusebenza emazingeni okushisa aphansi, indinganiso yama-DOT avamile ayinasibopho. Ezimweni zezulu ezinzima kakhulu, kuthuthukiswe izinguqulo eziguquliwe zoketshezi lwamabhuleki, lapho kugcizelelwa ezimfanelweni zezinga lokushisa eliphansi.
Izinga lokushisa eliqandayo langempela kanye nencazelo yalo engokoqobo
I-brake fluid idlala indima yomthwali wamandla ukusuka ku-master brake cylinder ukuya kubasebenzi. Uma ucindezela i-pedal ye-brake, ingcindezi yenziwa ku-torus cylinder eyinhloko, esakazeka emgqeni, isebenza kuma-pistons amasilinda asebenzayo futhi icindezela ama-pads kuma-discs.
Lapho i-viscosity ethile ifinyelelwa, uketshezi ngeke lukwazi ukudabula imigqa emincane nemide. Futhi amabhuleki azohluleka, noma umsebenzi wabo uzoba nzima kakhulu. Ngokwezilinganiso ezihlukahlukene, kumasistimu ahlukahlukene, lo mkhawulo usebangeni lama-2500-3000 cSt.
I-brake fluid iba yiqhwa ngaphansi kwaliphi izinga lokushisa ezimweni zangempela? Inethiwekhi inokuhlolwa okuningi ngokupholisa ama-brake fluids ahlukahlukene ngaphansi -40 ° C. Umkhuba umi kanje: wonke uketshezi, lapho edlula ezingeni lokushisa elibucayi, asagcina uketshezi, futhi ngokombono azosebenza ngokujwayelekile ohlelweni lwamabhuleki. Kodwa-ke, i-viscosity yoketshezi olubiza kancane kanye nezinketho eziphansi ze-DOT kukhula ngokushesha okukhulu ngesikhathi sokupholisa.
Lapho ifinyelela uphawu -50 ° C, iningi le-DOT-3 ne-DOT-4 liphenduka uju noma libe lukhuni ku-tarry mass (izinketho ezishibhile). Futhi lokhu kuhambisana nesimo sokuthi uketshezi lusha, alunothiswa ngamanzi. Ukuba khona kwamanzi kwehlisa umkhawulo wokumelana neqhwa ngo-5-10°C.
Uketshezi lwamabhuleki e-Silicone kanye nokwakheka okusekelwe kuma-polyglycols (DOT-5.1) amelana kakhulu nokubanda. Kodwa-ke, ngisho nalolu ketshezi lujiya lusondele kakhulu ku- -50°C. Futhi kunzima ukusho ukuthi bazosebenza yini kumasistimu aklanyelwe ngokukhethekile okukhethwa kukho kwamabhuleki e-low-viscosity.
Ngakho-ke, isiphetho esisodwa kuphela esingafinyelelwa: kuqinisekisiwe ukuthi i-brake fluid ngeke iqhwa emazingeni okushisa kuze kufike ku--40 ° C, njengoba kubonisiwe esilinganisweni.
