Ngingakwazi yini ukuhlanganisa uketshezi lwamabhuleki oluvela kubakhiqizi abahlukene?

Izinhlobo zama-brake fluids nezici zazo

Njengamanje, uketshezi lwamabhuleki olusetshenziswa kakhulu luhlukaniswa ngokwezinga loMnyango Wezokuthutha wase-US (uMnyango Wezokuthutha). Okufushane kwe-DOT.

Ngokwalesi sigaba, ngaphezu kwe-95% yazo zonke izimoto namuhla zisebenzisa enye yalezi ziphuzo ezilandelayo:

• I-DOT-3;
• I-DOT-4 nezinguqulo zayo;
• I-DOT-5;
• I-DOT-5.1.

Uketshezi lwasekhaya "Neva" (olufana nokwakheka kwe-DOT-3, oluvame ukushintshwa ngezithasiselo ezikhulisa indawo yokuqandisa), "i-Rosa" (efana ne-DOT-4) nokunye okunjalo kuya ngokuya kuncipha. Isizathu salokhu kwaba uguquko olucishe lufike emhlabeni wonke lwabakhiqizi baseRussia ekulebulani ngokwezinga laseMelika.

Cabangela kafushane izici eziyinhloko kanye nobubanzi bamabhuleki angaphezulu.

1. I-DOT-3. I-glycol fluid ephelelwe yisikhathi. Isetshenziswa kakhulu ezimotweni zakwamanye amazwe ezingaphezu kweminyaka eyi-15-20 nakuma-VAZ classics. Iqukethe i-hygroscopicity ephezulu (ikhono lokuqongelela amanzi ngevolumu). Indawo yokubilisa yoketshezi olusha icishe ibe ngu-205°C. Ngemva kokunqwabelana kwamanzi angaphezu kuka-3,5% wevolumu yoketshezi oluphelele, indawo yokubilisa iyehla ifike ku-140°C. Iziphatha ngendlela enolaka kumapulasitiki athile namarabha.
2. I-DOT-4. Isetshenziswa ezimotweni ezintsha. Isisekelo yi-polyglycol. Inokumelana okukhulu nokumuncwa komswakama endaweni ezungezile. Okusho ukuthi, ihlala isikhathi eside (ngokwesilinganiso, izinyanga eziyisithupha noma unyaka). Kodwa-ke, izithasiselo ezinciphisa i-hygroscopicity kanye ne-level chemical aggression zalujikisa kancane lolu ketshezi. Ku-40°C, i-viscosity iphakeme kancane kunolunye uketshezi lwe-DOT. Indawo yokubilisa yoketshezi "owomile" ngu-230°C. Umswakama (ngaphezu kuka-3,5%) wehlisa izinga lokubila libe ngu-155°C.
3. I-DOT-5. uketshezi lwe-silicone. Ayimunyi umswakama endaweni. Okunye ukuqoqwa komswakama kungenzeka ngendlela ye-condensate. Kodwa-ke, amanzi awahlangani nesisekelo se-silicone kanye ne-precipitates (okungase futhi kubangele imiphumela engemihle). I-DOT-5 fluid ayithathi hlangothi ngokwekhemikhali. Ibilisa ezingeni lokushisa elingekho ngaphansi kuka-260°C. Ine-fluidity enhle emazingeni okushisa aphansi.

1. 4. I-DOT-5.1. Ilungiselwe izimoto zezemidlalo (noma izimoto ezintsha) ukwakheka kwe-glycol. I-liquid ine-viscosity ephansi kakhulu. Izobila kuphela ngemva kokudlula iphuzu lama-260 ° C (kumswakama ongu-3,5%, iphoyinti elibilisa lehla liye ku-180 ° C). Inokumelana okuhle namazinga okushisa aphansi.

Uketshezi olubili lokugcina lusetshenziswa kuphela uma lokhu kunqunywa ngokunembile imiyalelo yokusebenza kwemoto. Lokhu ketshezi kungaphazamisa kabi amasistimu amabhuleki amadala, lapho i-viscosity ephansi ingabangela isistimu ukuthi ingasebenzi kahle futhi kubangele ukuvuza kwe-brake caliper nokuvuza kwepiston.

Ukungezwani koketshezi lwamabhuleki oluvela kubakhiqizi abahlukene

Ngokushesha mayelana nento esemqoka: zonke izinto ezibhekwa njenge-brake fluid, ngaphandle kwe-DOT-5, zingaxutshwa ngokwengxenye, kungakhathaliseki ukuthi umenzi. Yisigaba esibalulekile, hhayi umenzi.

Okuhlukile okunezisekelo ezihlukene azihambelani ngokwezigaba. Uma uhlanganisa i-silicone (DOT-5) nezisekelo ze-glycol (ezinye izinketho), ukuhlukaniswa kuzokwenzeka nayo yonke imiphumela elandelayo. Ngenxa ye-heterogeneity, uketshezi luzosabela ngendlela ehlukile lapho lufudunyezwa futhi lupholile. Amathuba okwakhiwa kwamapulaki egesi endawo azokhula izikhathi eziningi.

Uketshezi i-DOT-3, i-DOT-4 ne-DOT-5.1 ngokombono ingaxutshwa ndawonye okwesikhashana. Vele uqiniseke ukuthi uhlola ukuthi lezi zinto eziwuketshezi zenzelwe ukusebenza ne-ABS uma unalolu hlelo olufakiwe. Ngeke kube nemiphumela ebucayi. Nokho, lokhu kungenziwa kuphela ezimweni ezimbi kakhulu nangesikhathi esifushane. Futhi kuphela lapho uketshezi olufunayo lungatholakali ngesizathu esisodwa noma esinye. Kodwa uma imoto yakho isebenzisa i-DOT-4 brake fluid evela embonini, futhi kungenzeka ukuyithenga, akufanele ulondoloze futhi uthathe i-DOT-3 eshibhile. Ngokuhamba kwesikhathi, lokhu kuzoholela ekubhujisweni ngokushesha kwezigxivizo zesistimu noma izinkinga ohlelweni lwe-ABS.

Futhi, awudingi ukuthenga i-DOT-5.1 ebizayo uma isistimu ingaklanyelwe yona. Akuwenzi umqondo. Ukwakheka kwegesi kanye nokuhluleka kwamabhuleki kungazelelwe ngeke kwenzeke uma uhlelo lusesimweni esihle. Kodwa-ke, umehluko cishe izikhathi ezi-2 ku-viscosity yezinga lokushisa eliphansi ungacindezela uhlelo lwamabhuleki. Kwenzeka kanjani lokhu? Emazingeni okushisa amabi, izimpawu zenjoloba zilahlekelwa ukunwebeka kwazo. Ezimotweni eziklanyelwe i-DOT-3 noma i-DOT-4, uketshezi luphinde lube lukhulu ngokulinganayo. Futhi "i-brake" eqinile, uma igeleza ngezimpawu eziqinile ezinikezwayo, khona-ke ngenani elincane. Uma ugcwalisa i-low-viscosity DOT-5.1, khona-ke ebusika udinga ukulungiselela ukuvuza kwayo. Ikakhulukazi uma kuneqhwa.

Ukuguqulwa okuhlukahlukene kwe-DOT-4 (DOT-4.5, DOT-4+, njll.) kungaxutshwa ngaphandle kwemingcele. Endabeni ebalulekile njengokwakheka kwe-brake fluid, bonke abakhiqizi banamathela ngokuqinile ezindinganisweni. Uma kubhalwe ku-can ukuthi i-DOT-4, ngakho-ke, ngaphandle kokuncane, ukwakheka kuzoqukatha izingxenye ezifanayo, kungakhathaliseki ukuthi umenzi. Futhi umehluko ekubunjweni kwamakhemikhali akufanele kuthinte ukuhambisana nganoma iyiphi indlela.

Ingabe kungaxutshwa uketshezi lwamabhuleki? UKUBUKELA KUYIMANDLA!