Yuav tsum hloov cov dej nres ntau npaum li cas?

Vim li cas thiaj hloov cov kua dej nres?

Cia peb pib nrog cov hauv paus. Nres kua ua lub zog xa tawm los ntawm tus tswv nres lub tog raj kheej (GTE) rau cov neeg ua haujlwm. Tus neeg tsav tsheb nias ntawm lub pedal, GTE (qhov yooj yim tshaj plaws piston nyob rau hauv lub tsev nrog lub valve system) xa lub siab ntawm cov kua los ntawm cov kab. Cov kua dej hloov siab mus rau lub tog raj kheej ua haujlwm (calipers), cov piston txuas ntxiv thiab nthuav tawm cov ntaub qhwv. Cov ntaub qhwv yog nias nrog quab yuam rau qhov chaw ua haujlwm ntawm cov discs lossis nruas. Thiab vim muaj kev sib txhuam ntawm cov khoom no, lub tsheb nres.

Cov yam ntxwv tseem ceeb ntawm cov kua brake muaj xws li:

• incompressibility;
• tsis kam mus rau qis thiab kub siab;
• nruab nrab tus cwj pwm rau cov yas, roj hmab thiab hlau ntawm qhov system;
• zoo lubricating zog.

Them mloog: cov cuab yeej ntawm incompressibility yog sau ua ntej. Ntawd yog, cov kua dej yuav tsum kom meej meej, tsis muaj ncua sij hawm thiab tag nrho hloov siab mus rau lub tog raj kheej ua haujlwm lossis calipers.

Nres kua muaj ib qho khoom tsis zoo: hygroscopicity. Hygroscopicity yog lub peev xwm los khaws noo noo los ntawm ib puag ncig.

Cov dej hauv qhov ntim ntawm cov dej nres txo nws txoj kev ua haujlwm kub. Piv txwv li, DOT-4 kua, feem ntau niaj hnub no, yuav tsis boil kom txog thaum nws nce mus txog qhov kub ntawm 230 ° C. Thiab qhov no yog qhov tsawg kawg nkaus yuav tsum tau ntawm US Department of Transportation standard. Qhov tseeb qhov kub ntawm cov dej nres zoo mus txog 290 ° C. Los ntawm kev ntxiv tsuas yog 3,5% ntawm tag nrho cov ntim dej rau cov dej nres, lub boiling point yuav poob mus rau +155 ° C. Qhov ntawd yog hais txog 30%.

Lub braking system tsim ntau lub zog cua sov thaum nws ua haujlwm. Qhov no yog qhov laj thawj, vim tias lub zog nres tshwm sim los ntawm kev sib txhuam nrog lub zog clamping loj ntawm cov ntaub qhwv thiab cov disc (nruas). Cov ntsiab lus no qee zaum kub txog 600 ° C hauv qhov sib tiv tauj. Qhov kub ntawm cov discs thiab cov ntaub qhwv yog hloov mus rau calipers thiab cylinders, uas ua rau cov kua dej ua kom sov.

Thiab yog hais tias lub boiling point yog mus txog, cov kua yuav boil. Lub roj ntsaws cov ntaub ntawv nyob rau hauv lub system, cov kua yuav poob nws incompressibility khoom, lub pedal yuav ua tsis tau tejyam thiab lub brakes yuav poob.

Hloov sijhawm

Yuav tsum hloov cov dej nres ntau npaum li cas? Qhov nruab nrab, kev pab cuam lub neej ntawm cov kua dej ua ntej kev sib sau ntawm cov dej tseem ceeb yog 3 xyoos. Qhov no muaj tseeb rau glycol variants xws li DOT-3, DOT-4 thiab nws cov kev hloov pauv, nrog rau DOT-5.1. DOT-5 thiab DOT-5.1 / ABS cov kua dej, uas siv lub hauv paus silicone ua lub hauv paus, muaj peev xwm tiv taus dej ntau dua, lawv tuaj yeem hloov pauv rau 5 xyoos.

Yog tias lub tsheb siv txhua hnub, thiab kev nyab xeeb hauv cheeb tsam yog cov av ntub, nws raug nquahu kom txo lub sijhawm ntawm kev hloov tom ntej ntawm cov dej nres los ntawm 30-50%. Glycolic kua nyob rau hauv kev ua haujlwm nyuaj ntawm lub cev yuav tsum tau hloov pauv txhua 1,5-2 xyoos, cov kua dej silicone - 1 zaug hauv 2,5-4 xyoos.

Yuav ua li cas koj paub thaum nws yog lub sij hawm los hloov koj tus brake?

Nyob rau hauv rooj plaub koj tsis paub tias thaum twg cov dej nres tau hloov kho tshiab (tsis nco qab lossis nyuam qhuav yuav lub tsheb), muaj ob txoj hauv kev los nkag siab yog tias lub sijhawm hloov pauv.

1. Siv tus brake kua analyzer. Qhov no yog cov cuab yeej yooj yim tshaj plaws uas kwv yees qhov feem pua ​​​​ntawm cov dej noo hauv ib lub ntim los ntawm cov hluav taws xob tsis kam ntawm ethylene glycol lossis silicone. Muaj ntau ntau versions ntawm no brake kua tester. Rau kev xav tau hauv tsev, qhov yooj yim tshaj plaws yog tsim. Raws li kev xyaum tau pom, txawm tias lub cuab yeej pheej yig muaj qhov tsis txaus ntseeg, thiab nws tuaj yeem ntseeg tau.
2. Visually ntsuam xyuas cov kua brake. Peb unscrew lub plug thiab saib mus rau hauv lub expansion tank. Yog hais tias cov kua yog pos huab, tau poob nws transparency, darkened, los yog nplua inclusions yog pom nyob rau hauv nws ntim, peb twv yuav raug hu hloov nws.

Nco ntsoov! Nws yog qhov zoo dua kom tsis nco qab hloov cov roj cav thiab nkag mus rau hauv lub cav kho dua li tsis nco qab txog cov dej nres thiab muaj kev sib tsoo. Ntawm tag nrho cov thev naus laus zis hauv lub tsheb, qhov tseem ceeb tshaj plaws yog cov dej nres.

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