Nkag siab Automotive nres PADS - cov ntaub ntawv, ua haujlwm, thiab kev xaiv
Tub ntxhais muaj nuj nqi & Anatomy:
Nyob rau hauv disc nres system, thaum tus tsav nias tus nres pedal, hydraulic siab yuam kev nres ntawm ob sab ntawm lub log (rotor) txuas nrog lub log HUB. Cov kev sib txhuam tau tsim tawm ntawm qhov interface slows lub rotor thiab, thiaj li, lub log thiab tsheb. Ib tug nres nres ncoo muaj:
1. Kev txhuam cov khoom / cov khoom sib xyaw ua ke: kev lag luam xaus, ib txoj kev sib xyaw ntawm 10-20+ Cov khoom xyaw ua ke. Qhov no txiav txim siab lub ncoo cov cwj pwm kev ua tiav (kev sib txhuam, hnav, suab nrov, plua plav).
2. Rov Qab Phaj: Tus qauv sib zog ua ke phaj muab kev ntseeg siab, hloov lub zog ua kom ncaj ncees los ntawm lub caliper piston tusyees rau cov khoom sib txhuam, thiab ua yeeb yam raws li lub tshuab cua kub.
3. Shims / Insulators: txheej (feem ntau nplaum -}} backed) nruab nrab ntawm cov khaub ncaws rov qab) ntawm cov caliper piston / ntiv tes. Lawv lub luag haujlwm tseem ceeb yog Dampen dibrations uas ua rau lub suab nres (squeal).
4. Kev ris ncauj (qee zaum): lub tshuab hluav taws xob): yog cov hluav taws xob lub tshuab hluav taws xob uas ua rau cov khoom sib txhuam uas ua rau cov ntaub qhwv uas tsis txaus ntseeg.
Qhov kev sib txhuam khoom khoom matrix: hom thiab pauv kev luam- Offs:
Cov muaj pes tsawg leeg ntawm cov khoom sib txhuam yog qhov tseem ceeb. Muaj peb hom tseem ceeb, txhua tus muaj qhov zoo sib xws thiab qhov tsis zoo:
1. Organic (tsis - Asbestos - nau}
Kev sib xyaw: keeb kwm siv Asbestos (tam sim no tau muab banned thoob ntiaj teb), hloov los ntawm cov fibers zoo li iav, roj hmab, xylar, carbon; sib raug zoo nrog cov resins; suav nrog rau cov lim thiab hloov kho.
Pros: Feem ntau ntsiag to ua haujlwm, du qhov kev xav), qis rotor hnav, pheej yig, pheej ywg dej (kev ua kom ntxov tau muaj plua plav).
Cons: qis dua siab - kub ua tau (nquag faib (nquag hnav (lub neej luv), tuaj yeem rhiab rau ya raws.
Qhov zoo tshaj plaws rau: Txhua hnub ua ntej, lub teeb {- luag tsheb tsheb, cov tsav tsheb ua ntej ntsiag to ntsiag to thiab qis rotor hnav. Ntau zuj zus sophisticated noo pads yog nrov rau cov hybrids thiab evs vim lawv lub suab qis thiab corrosion tus yam ntxwv.
2. Semi - nws yog xim hlau:
Kev sib xyaw: 30-65% hlau cov ntsiab lus (hlau, hlau, tooj liab) tov nrog cov roj av roj hmab, hloov kho cov khoom siv / cov organic.
Pros: Zoo heev siab - kub kev ua tau zoo thiab fade tsis kam, zoo txhua yam dhuav, ua tau zoo cua sov dissipation. Tus nqi zoo rau kev ua tau zoo.
Cons: Ntau lub suab nrov muaj peev xwm (squeal), nce cov roj av (ntau dua cov plua plav), feem ntau tsaus ntuj thiab muaj peev xwm ntau dua), tuaj yeem xav tau ntau dua kev siv zog thaum txias.
Qhov zoo tshaj plaws rau: kev ua tau zoo tsav tsheb, Towing, cov tsheb hnyav (SUVs, tsheb thauj khoom), xav tau cov xwm txheej. Ib qho kev ua haujlwm ntawm kev ua tau zoo tom qab.
3. Ceramic:
Composition: feem ntau coveramic fibers thiab fillers (zoo li silicon carbide, alumina), embedded nrog cov ntaub ntawv, sib khi nrog high- temp resins. Tsawg heev lossis xoom hlau cov ntsiab lus.
Pros: Tsis tshua muaj plua plav
Cons: tus nqi siab tshaj, feem ntau tsawg dua qhov "
Qhov zoo tshaj plaws rau: cov tsav tsheb niaj hnub, cov tsheb kim heev, cov plua plav qis, cov tsav tsheb tsis kam), cov tsav tsheb ua ntej kev ua haujlwm huv si thiab kev ua haujlwm nyob ntsiag to. Dominating oe kev ua lag luam.
Cov yam ntxwv tseem ceeb piav qhia:
Kev sib txhuam coefficient (μ): ntsuas qhov "tuav" ntawm ncoo thiab rotor. Siab dua μ txhais tau ntau dua siv lub zog rau ib qho kev siv zog. Txawm li cas los xij, nws yuav tsum tau ruaj khov (saib cov ploj mus). Ntsuas raws li "txias μ" thiab "kub μ".
Fade Kuj: lub peev xwm los tswj kev sib txhuam coefficiient raws li qhov kub tau nce siab dua lossis ua rau loj. Semi - metallics excel ntawm no; Organic pads yog qhov tsis muaj zog tshaj plaws. Ceramics muaj kev ua tau ruaj khov heev.
Hnav tus nqi: Yuav ua li cas nrawm nrawm cov khoom hnav kom deb. Organics hnav cov ntsiab lus ceev tshaj plaws, ceramics qeeb qeeb. Kuj cuam tshuam rotor hnav - semi- metallics feem ntau nyuaj rau rotors.
Suab nrov (NVH): squeal, nroo, lossis txiav txim rau cov neeg txiav txim los ntawm kev co. Txoj kev nyuaj rau kev tshem tawm, hnyav heev cuam tshuam los ntawm Pad tsim kev tsim, shims, rotor mob, thiab caliper tsim. Nao thiab Ceramics feem ntau yog quieter.
Ntau tiam: tus nqi thiab hom khib nyiab tsim tawm thaum lub sijhawm nres. Ceramics ua qhov tsawg tshaj plaws tau pom (lub teeb txho) plua plav; semi - metallics tsim cov feem ntau (tsaus, feem ntau nplaum) hmoov av.
Thaum pib tom: kev teb thiab kev sib txhuam cov theem kev paub hauv thawj lub sijhawm ntawm cov ntawv nres nres, tshwj xeeb tshaj yog thaum txias. Semi - metallics feem ntau muaj cov muaj zog tom; Ceramics tuaj yeem xav me ntsis kev siv zog me ntsis thaum pib.
Rotor cov phooj ywg: yog li cas maj mam muab lub ncoo hnav lub rotor. Nao thiab Ceramics yog Gentler; semi - metallics muaj ntau abrasive.
Cov Qauv Xaiv: Tshaj li tsuas yog "ua haujlwm"
Xaiv txoj cai ncoo cuam tshuam ntau yam:
1. Lub Tsheb Thov: OE specifications, qhov hnyav, qib kev ua tau zoo.
2. Kev tsav tsheb / tus cwj pwm: commerfle tsav tsheb thiab towing.
3. Kev nyab xeeb: nquag ua haujlwm huab cua ua haujlwm vs. roob toj roob hauv pes ua rau muaj cua sov tsim.
4. Cov ntsiab lus tseem ceeb: tsis tshua muaj suab nkauj / hmoov av Paramount? Puas muaj siab tshaj plaws ploj mus tseem ceeb? Puas muaj kev txhawj xeeb tseem ceeb? Cov nyiaj txiag yog qhov tseem ceeb?
5. Cov Cai: Tooj liab cov ntsiab lus txwv (piv txwv li, California SB 346).
Kev Txij Nkawm & Kev Nyab Xeeb:
Kev tshuaj xyuas tsis tu ncua (visually thiab tuab ntsuas) yog qhov tseem ceeb heev. Yuav tsum tau hloov ua ntej cov khoom sib txhuam yog hnav kom deb kom tsis txhob muaj kev puas tsuaj rotor.
Nco ntsoov hloov cov ntaub qhwv hauv qag teeb (ob sab hauv ntej lossis ob sab nraub qaum).
Lub chaw pw kom zoo -} hauv (hlawv) cov txheej txheem yog qhov tseem ceeb los hloov ib lub rotor, thiab ua tau zoo, suab nrov, thiab hnav.
Cov teeb meem tseem ceeb. Lub npe nrov nrov tau nqis peev ntau hauv R & D, kuaj, thiab kev tsim qauv sib xws.
Lub neej yav tom ntej:
Nres Pad Technology txuas ntxiv hloov zuj zus. Qhov tseem ceeb tshaj plaws xws li:
Copper Elimination:Developing high-performance, cost-effective alternatives.
EV / Hybrid Optimization: Tsim Kom Raug Kev Sau Npe Corrosion, Tsawg {{}}} -} Cov plua plav qis.
Cov khoom siv nyob: Bio -} Raws li cov resins, rov ua cov ntsiab lus.
Advanced tsim khoom: Ai {{- DRIVER COMACTIZE, txhim kho kev tswj hwm zoo.
Txo tsis - kev tso duab PM: Ultra-} Cov plua plav qis rau hauv cov huab cua hauv nroog zoo.
To taub cov kev tshawb fawb thiab kev lag luam - Offs nres kev nyab xeeb, ua kom pom kev zoo dua rau kev txiav txim siab zoo dua qub, ua tau zoo thiab kev txaus siab ua kom muaj kev cia siab.
