Nov yog cov xwm txheej tseem ceeb uasyuav tsum tau hloov lub nruas nres:
1. Kev hnav ntau dhau thiab muab qhab nia
- Deep Grooves/Scoring:Sij hawm dhau mus, kev sib txhuam los ntawm cov khau khau khiab tsim cov qauv hnav ntawm sab hauv kev sib txhuam. Lub teeb, tus qhab nia yog qhov qub, tab sistob, nyuaj -edged groovestuaj yeem tiv thaiv cov khau khau los ntawm kev sib cuag kom raug, txo qis kev ua haujlwm ntawm braking.
- Qhov siab tshaj plaws:Txhua lub nruas muaj ibMaximum nyob rau hauv txoj kab uas hla (ID)specification stamped rau nws (feem ntau yog "MAX DIA" lossis "DISCARD"). Raws li nruas hnav, lawv yog machined ("tig") mus rau ib tug du nto. Yog tias lub nruas twb nyob ntawm lossis dhau nws txoj kab uas hla, nws yuav tsum tau hloov. Ib lub nruas uas nyias dhau tsis tuaj yeem tso cua sov kom zoo thiab ua rau tawg lossis tawg.
2. Cracks los yog Thaum tshav kub kub checks
- Loj Cracks:Txhua qhov pom kev tawg, tshwj xeeb tshaj yog ib qho uas khiav los ntawm kev sib txhuam saum npoo mus rau sab nrauv los yog lub voj voog bolt, yog ib qhokev nyab xeeb tam sim ntawdthiab yuav tsum tau hloov. Lub nruas tuaj yeem ua tsis tau raws li kev ntxhov siab braking.
- Thaum tshav kub kub Checks (Craze Cracking):Ib qho kev sib txuas ntawm ntau qhov zoo, qhov khoob khoob khoob ntawm qhov sib txhuam. Qhov no yog tshwm sim los ntawm overheating hnyav (piv txwv li, los ntawm kev rub brakes lossis kev tsav tsheb hnyav). Thaum lub teeb hluav taws xob kuaj xyuas qee zaum tuaj yeem raug txiav tawm, cov qauv dav dav txhais tau tias cov qauv hlau raug cuam tshuam, thiab lub nruas yuav tsum tau hloov.
3. Hnyav overheating (Blueing / Discoloration)
Yog lub nruas qhia abluish los yog purplish discoloration, nws tau raug tshav kub heev. Qhov no overheats hlau, ua rau nws poob nws temper (ua softer), warp, thiab tawg yooj yim dua. Cov nruas zoo li no muaj kev pheej hmoo siab - thiab yuav tsum tau hloov.
4. Tawm ntawm - ntawm - Round or Severe Warpage
Lub warped los yog tawm - ntawm - lub nruas puag ncig ua rau apulsating nres pedal(zoo ib yam li warped rotor) uas koj tuaj yeem hnov thaum siv lub brakes. Txawm tias me me warpage tej zaum yuav raug kho los ntawm machining, mob hnyav, los yog machining yuav tshaj qhov siab tshaj plaws txoj kab uas hla, yuav tsum tau hloov.
5. Kev puas tsuaj los yog hnav Mounting Hubs
- Damaged Lug Studs:Yog hais tias cov studs uas tuav lub log yog stripped, puas, los yog tawg, lub nruas yuav tsum tau hloov ntau zaus, raws li cov studs feem ntau nias rau hauv lub nruas / hub sib dhos.
- Kev puas tsuaj Pilot Qhov lossis Bolt Qhov:Kev puas tsuaj rau qhov chaw tsav tsheb lossis lub voj voog ntawm lub voj voog tuaj yeem ua rau lub log tsis zoo thiab kev co.
6. Tawg los yog puas Cooling Fins (ntawm Vented Drums)
Qee lub nruas muaj cov fins sab hauv lossis sab nraud rau cov cua sov dissipation. Yog tias cov no tsis zoo los yog tawg, lub nruas lub peev xwm ua kom txias yog txo, ua rau muaj kev pheej hmoo ntawm overheating.
7. Corrosion thiab Pitting
Nto xeb yog feem ntau thiab feem ntau txhuam tawm thaum braking. Txawm li cas los xij,tob, pitted corrosionuas npog ib feem tseem ceeb ntawm kev sib txhuam nto tuaj yeem txo lub zog braking thiab ua rau cov khau nres. Yog tias nws tsis tuaj yeem raug machined yam tsis muaj kev nyab xeeb, yuav tsum tau hloov pauv.
Qhov Tseem Ceeb Ntawm Kev Ua:
- Machining ("Tig"):Feem ntau, cov nruas yog resurfaced ntawm lub tshuab dhos nres kom rov qab zoo, qhov tseeb.Qhov no tsuas yog ua tau yog tias, tom qab machining, lub nruas txoj kab uas hla tseem nyob hauv qhov "MAX DIA" specification.
- Ib txwm Hloov hauv Axle Sets:Rau kev sib npaug braking, nws yog tus qauv coj los hloov (lossis tshuab) nres nruasnyob rau tib lub qag (ob lub log tsheb) tib lub sijhawm, txawm tias tsuas yog ib qho tshwm sim tsis zoo.
- Tshawb xyuas thiab Hloov Kho Hardware:Thaum hloov cov nruas, nws raug nquahu kom kuaj xyuas thiab feem ntau hloov cov khoom siv sib xws (nres nkawm khau, caij nplooj ntoos hlav, lub tog raj kheej log) kom ua tiav thiab txhim khu kev qha.
Hauv cov ntsiab lus: Hloov lub nruas nres yog tias nws tawg, sib sib zog nqus grooved, warped, overheated, tau puas mounting cov ntsiab lus, los yog hnav tshaj nws lub siab tshaj plaws txoj kab uas hla.Ib tug kws kho tsheb tuaj yeem ua cov kev ntsuam xyuas no kom raug nrog cov cuab yeej tsim nyog.
