Nkag siab Automotive nres rau - cov ntaub ntawv, ua haujlwm, thiab kev hloov zuj zus

Tub ntxhais muaj nuj nqi: lub physics ntawm kev nres

Thaum tus tsav tsheb nias lub nres pedal, hydraulic siab zog nres rau cov khoom sib txhuam (lossis qee zaum sib xyaw) nres Disc (rotor). Qhov kev sib tw no tsim kev sib txhuam, ua kom cua sov (upwards ntawm 500 ° C / 932 ° F nyob rau hauv loj braking). Lub zog kev hloov pauv ntawm cov tsheb txav tau hloov mus rau lub zog thermal, dissipated rau hauv huab cua ntawm lub rotor thiab cov ntaub qhwv. Txoj kev no tso rau ntawm cov khoom sib txhuam cov khoom thiab nws cov kev sib cuam tshuam nrog lub rotor nto.

Anatomy ntawm lub ncoo nres:

1. Cov khoom sib txhuam: kev lag luam xaus. Ib txoj kab sib xyaw ua ke sib xyaw ua ke rau lub thawv thaub qab. Kev sib xyaw sib txawv sib txawv txav rau hom thiab daim ntawv thov.

2. Backing phaj: feem ntau ua los ntawm cov hlau. Muab cov qauv kev txhawb nqa, kev hloov chaw clamping yuam, thiab ua raws li lub dab dej sov. Feem ntau coated los tiv thaiv corrosion.

3. Shims (anti {{{{{rattle / cov kua ntses (feem ntau stainless hlau lossis roj hmab- Coated thiab pontiper piston / ntiv tes. Dampen dibrations kom txo lub suab nres tsheb (squeal).

4. Kev coj tus taw qhia: ib qho me me hlau tsim los hu rau lub rotor thiab emit lub siab- pitched squeal thaum cov khoom siv yuav luag hnav. Qee lub tsheb niaj hnub siv tshuab hluav taws xob.

Tus yuam sij nres Khoom Siv Khoom Khoom & Lawv Cov Yam ntxwv:

Qhov kev sib txhuam cov khoom siv cov txheej txheem dictionates kev ua tau zoo, suab nrov, plua plav, thiab rotor hnav. Cov pawg loj muaj xws li:

1. Tsis -} Asbestos Organic (Nao):

Composition: Blend of organic fibers (glass, rubber, Kevlar), fillers (barium sulfate, cashew particles), binders (resins), and friction modifiers.

Pros: Feem ntau ntsiag to ua haujlwm, maj ntawm rotors, tus nqi qis.

Cons: qis dua siab high - kub ua tau (nquag hnav tus nqi, tsim cov plua plav (feem ntau tsaus ntuj nti).

Siv rooj plaub: zoo tagnrho rau txhua hnub ua haujlwm hauv cov tsheb neeg nrog caij tsheb, qis {- kev ntxhov siab tsav.

2. Semi - nws yog xim hlau:

Kev sib xyaw: 30-65% ferrous hlau (hlau, hlau, tooj liab) tov nrog cov roj nplua nyeem graphs, fitters, thiab hloov kho. Ntau cov ntsiab lus nws yog xim hlau dua ceramic.

Pros: Kev kub zoo heev tsis txaus, zoo - kub fade tsis kam, ruaj, zoo pib tom.

Cons: tuaj yeem tsis muaj peev xwm (squeal), ntau lub rotor hnav, tsim cov hmoov av tseem ceeb (feem ntau muaj kev xav), nyuaj siab.

Siv rooj plaub: sib xws hauv cov tsheb hnyav (SUVs, tsheb thauj khoom), kev siv txoj hauv kev hauv txoj kev, towing. Keeb kwm nrov heev.

3. Ceramic:

Composition: feem ntau cov ceramic fibers thiab fillers (zoo li silicon carbide, tsis yog {{} steel hlau me, kev sib khi nrog siab- temp resins. Nco tseg: Tsis yog tais diav Ceramic.

Pros: Tsawg tsawg plua plav (lub teeb txho, tsawg dua nplaum), maj mam ua tau zoo dua qhov kub thiab txias, maj mam ntawm rotors, ntev - kav.

Cons: Feem ntau tus nqi siab dua, "pib tom" tuaj yeem xav tias tsis tshua muaj kev ntxhov siab dua li kev nruj me ntsis tau muaj dua tshiab), tab tom ua tau zoo niaj hnub tau txo qis me ntsis thaum pib.

Siv rooj plaub: tseem ceeb hauv OE rau cov neeg caij tsheb niaj hnub, tshwj xeeb yog khoom kim heev thiab evs. Heev nrov hwm hwm cov kev xaiv tom qab.

4. Tsawg - nws yog xim hlau thiab cov hlau (10 {}}

Kev Ntsuas Cov Lus Qhia Tseem Ceeb:

Kev ntsuam xyuas cov nres nres cuam tshuam nrog kev sib tw feem ntau sib tw yam:

Kev sib txhuam coefficient (μ): ntsuas siv fais fab. Ntau Dua μ {{{= sheetter nres tsis nrug, tab sis xav tau ruaj khov. OE pads feem ntau phiaj yog lub hom phiaj μ=0.35-0.45. Kev ua yeeb yam ntaub qhwv tau {}}

Fade Kuj: muaj peev xwm los tswj kev sib txhuam coefficient li kub nce ntxiv. Qhov tseem ceeb rau kev tsav tsheb lossis taug qab siv. Semi - nws yog xim hlau thiab kev ua tiav ceramics excel ntawm no.

Hnav Yaus: Ntev npaum li cas lub ncoo ntev. Ceramic perts feem ntau muab lub neej ntev tshaj plaws hauv kev tsav tsheb ib txwm. Txhoj puab sib xyaw ua kom nrawm dua.

Rotor cov phooj ywg: yuav ua li cas kev ntaus pob khoom siv cov khoom siv nres nres. Nao thiab tej hub muaj feem ntau gentlest; Qee qhov kev txhoj puab heev sidi - meters me me yuav ua hnyav.

Suab nrov yuav co kev ua nruj ua tsiv (nvh): tsis kam mus rau squeal, ntsaj, txiav txim. Nao thiab ceramic feem ntau zoo tshaj. Shims yog qhov tseem ceeb.

Ntau tiam: tus nqi thiab hom khib nyiab tso tawm. Ceramic ntaub ua cov hmoov av tsawg tshaj plaws; semi - Nws yog xim hlau ua qhov feem ntau (thiab nws feem ntau hnyav rau lub log).

Pib tom: teb rau saum toj kawg nkaus ntawm txoj kev pedoke. Semi - Nws yog xim hlau feem ntau xav tias muaj zog pib.

Pedal xav / hloov: Tus tsav tsheb lub siab ntawm kev tswj hwm thiab linearity li pedal siab nce. High -} Cov Pad zoo ua kom zoo sib xws, twv tau zoo.

Cov txheej txheem tsim khoom: Precision nyob rau hauv lub siab

Niaj hnub nres ncoo tsim yog muaj ntau heev:

1. Kev sib xyaw: kev sib xyaw ua ke ntawm cov khoom siv raw (mus txog 20+ cov khoom xyaw) hauv cov khoom xyaw loj.

2. Ua ntej {- Txoj kev sib sau: Cov sib tov yog feem ntau tau cog rau hauv pre- cov ntawv.

3. Moulding: Pre6 {{- cov ntawv tau muab tso rau hauv cov pwm ua kom sov nrog lub thawv thaub qab. Kev siab siab thiab kub siab (thermosetting) kho lub cob thiab daim ntawv sib txhuam ntawm cov khoom sib txhuam rau lub thawv thaub qab.

4. Kev kho cua sov (post {{{{1} Kho): pads yog ci ntawm kev tswj hwm kub los ua kom tiav cov khoom kho thiab ruaj khov cov khoom siv.

5. Sib tsoo / chamfering: qhov sib txhuam yog cov av ncaj qha tiaj thiab chamfers (beveled npoo) tau ntxiv los txo suab nrov.

6. SLOTTING (YOOJ YIM): Slots txiav mus rau hauv kev sib txig sib txig roj av, khib nyiab, thiab qoj ib ce txo.

7. Txuas ntawm shims / hnav sensors: ntxiv raws li yuav tsum tau ua.

8. Kev tswj hwm zoo: nruj npaum li cas cov kev sim ua kom muaj zog, ntom, hardness, qhov ntev, thiab feem ntau zynamometer kev twv xyuas rau kev sib txhuam thiab hnav ua tau zoo.

Yav tom ntej evolution:

Lub ncoo nres tsis zoo li qub. Cov neeg tsav tsheb tseem ceeb rau kev txhim kho yav tom ntej muaj xws li:

Euro 7 & dhau: Ultra - Qhov qis emission formulations xav tau cov ntaub ntawv tshiab los hloov cov ntaub ntawv tshiab los hloov cov ntaub ntawv tshiab los hloov cov ntaub ntawv tshiab los hloov cov khoom siv tshiab

EV OP OPPECTION: Txuj ci rau txo kev xeb, txhim kho kev ua tau zoo tom qab lub sijhawm tsis sib haum, thiab compatibility nrog siab regen braking.

Kev Nyab Xeeb: Kev siv tau ntau dua / siv cov khoom siv (steel, kev sib txhuam plua plav), bio {{}} raws binders thiab fibers.

Cov khoom siv txhim kho: txuas ntxiv tshawb qhia txog nanomaterials, advanced ceramics, thiab composite qauv qauv rau kev ua tau zoo / hnav / lub neej sib npaug.

Ntse Kev Sib Tw: Muaj peev xwm rau cov sensors ntse dhau ntawm cov khoom siv hnav kom muaj qhov ntsuas (piv txwv li, kub, kev sib txhuam, kev sib txhuam, kev sib txhuam, kev sib txhuam ua kom muaj kev soj ntsuam).

Xaus:

Nres rau hauv cov ntaub ntawv yog ib qho zoo nkauj ntawm cov ntaub ntawv kev tshawb fawb thiab kev ntsuas thiab feem ntau sib cav sib ceg thiab feem ntau tsis sib haum xeeb kev ua tau zoo. Nkag siab txog qhov sib txawv hauv cov ntaub ntawv, lawv cov lag luam-}}}}}}}}}}} tus tswv, kho tsheb, lossis tus tswv tsheb. Raws li lub tsheb hloov zuj zus, tshwj xeeb nrog rau hluav taws xob txoj cai thiab ua kom pom kev siv tshuab ib puag ncig, nres ntsuas tshuab yuav txuas ntxiv thiab kev txhim kho tseem ceeb.