Mvura yebhureki inogarwa netembiricha yakadini?
Zviri mukati
Brake fluid inotonhora nzvimbo zvinoenderana neyakajairwa
Izvo zvakakosha kuti unzwisise kuti hapana yakasimba resipi yekugadzirwa kwebrake fluid. Chiyero chakagadzirwa uye chakaitwa neUS Dhipatimendi Rezvekutakurwa (DOT) chinotsanangura akati wandei emvura zvinodiwa kune hydraulic brake system. Asi hapana kuenzana kwakasimba kana mafuremu.
Semuenzaniso, kune iyo yekubikira yebhureki fluid, chete muganho wakaderera unoratidzwa. Kune yakajairika chigadzirwa cheDOT-4 muRussian Federation, nhamba iyi haina kuderera kupfuura +230 ° C. Mukuita, iyo chaiyo yekubikira poindi yepremium DOT-4 brake fluid iyo isina kupfumiswa nemvura inowanzopfuura +260 ° C.
Mamiriro akafanana anocherechedzwa nenzvimbo yekudira. Iyo chiyero inotonga kwete iyo inotonhora pachayo, asi iyo viscosity pa -40 ° C chando. Tafura iri pazasi inopfupikisa iyo yakanyanya kubvumidzwa viscosity pane ino tembiricha yezvino mabhureki fluid.
| DOT-3 | 1500 sSt |
| DOT-4 | 1800 sSt |
| DOT-5 | 900 sSt |
| DOT-5.1 | 900 sSt |
Zvese izvi zvakakosha zvinogamuchirwa pakuita kwemabhureki masisitimu akagadzirirwa imwe mvura patembiricha inodzika kusvika -40 ° C. Nekuita pane tembiricha yakaderera, chiyero cheyakajairwa DOTs haina mhosva. Kune mamwe mamiriro ekunze akaoma, shanduro dzakagadziridzwa dzemabhureki fluid dzakagadzirwa, umo kusimbiswa kuri pane yakaderera-tembiricha hunhu.
Tembiricha yechando chaiyo uye zvazvinoreva
Brake fluid inoita basa rekutakura simba kubva kune master brake cylinder kuenda kuvashandi. Paunodzvanya brake pedal, kudzvanywa kunogadzirwa mune hombe torus cylinder, iyo inopararira pamwe nemutsara, inoshanda pamapistoni emasilinda anoshanda uye inodzvanya mapedhi kune discs.
Kana imwe viscosity yasvikwa, mvura yacho haizokwanisi kutyora mitsetse yakamanikana uye yakareba. Uye mabhureki achakundikana, kana kuti basa ravo richava rakaoma zvikuru. Zvinoenderana nekufungidzira kwakasiyana-siyana, kune akasiyana masisitimu, chikumbaridzo ichi chiri pakati pe2500-3000 cSt.
Iri papi tembiricha iyo brake fluid inotonhora mumamiriro chaiwo? Iyo network ine yakawanda yekuedza nekutonhora kweakasiyana mabhureki fluid pazasi -40 ° C. Mamiriro acho ndeaya anotevera: zvese zvinwiwa, kana zvichipfuura nemutembiricha yakaoma, zvichiri kuchengetedza fluidity, uye mukufungidzira ivo vanozoshanda zvakajairika mubhureki system. Nekudaro, iyo viscosity yemvura inodhura yakaderera uye yakaderera DOT sarudzo inowedzera nekukurumidza panguva yekutonhora.
Pakusvika pa -50 ° C mucherechedzo, DOT-3 neDOT-4 yakawanda inoshanduka kuita uchi kana kutoomesa kune tarry mass (masarudzo akachipa). Uye izvi ndezvemamiriro ekuti mvura yakachena, isina kupfumiswa nemvura. Kuvapo kwemvura kunodzikisira kutonhora kwechando ne5-10°C.
Silicone brake fluids uye magadzirirwo anobva papolyglycols (DOT-5.1) anonyanya kushingirira kutonhora. Zvisinei, kunyange zvinwiwa izvi zvinokora zvakanyanya kusvika -50°C. Uye zvakaoma kutaura kuti vachashanda mumasisitimu akagadzirirwa yakaderera-viscosity brake fluid sarudzo.
Saka, mhedziso imwe chete inogona kutorwa: inovimbiswa kuti iyo brake fluid haizoomese kune tembiricha kusvika -40 ° C, sezvakaratidzwa muchiyero.
