Dab tsi yog cov khoom siv ceramic nres ua los ntawm?

Ceramic brake pads subvert lub tswv yim ib txwm muaj ntawm ceramic nres ncoo, ceramic nres pads yog tsim los ntawm ceramics fibers, hlau-dawb muab tub lim tshuaj, adhesives thiab ib tug me me ntawm cov hlau.

Ceramic brake pads yog ib hom nres nres, ntau tus neeg siv khoom yuav yuam kev rau ceramic thaum xub thawj, qhov tseeb, ceramic nres ncoo yog los ntawm lub hauv paus ntsiab lus ntawm cov hlau ceramics es tsis yog xim hlau ceramics, nres nres vim kev kub ceev braking, kub kub. ntawm kev sib txhuam nto, raws li kev ntsuas, tuaj yeem ncav cuag 800 ~ 900 degrees, thiab qee qhov ntau dua. Ntawm qhov kub siab no, qhov saum npoo ntawm lub nres nres yuav muaj cov tshuaj tiv thaiv zoo sib xws ntawm cermet sintering, kom lub brake ncoo muaj kev ruaj ntseg zoo ntawm qhov kub thiab txias. Cov tsoos nres nres yuav tsis tsim cov tshuaj tiv thaiv sintering ntawm qhov kub thiab txias, vim qhov kub ntawm qhov kub thiab txias yuav yaj cov khoom siv saum npoo av thiab tseem tsim cov cua cushion, uas yuav ua rau kom txo qis hauv kev ua haujlwm nres lossis nres nres tom qab nres nres.

Ceramic brake pad nta:

Tsawg plua plav ntawm lub log; Lub neej ntev ntawm platters thiab khub; Tsis muaj suab nrov / tsis muaj tshee / tsis muaj disc puas. Kev ua haujlwm tshwj xeeb yog raws li hauv qab no:

(1) Qhov sib txawv loj tshaj plaws ntawm ceramic nres ncoo thiab tsoos nres nres yog tias tsis muaj hlau. Cov hlau nyob rau hauv cov tsoos nres nres yog cov khoom tseem ceeb ntawm kev sib txhuam, lub braking quab yuam yog loj, tab sis hnav yog loj, thiab lub suab nrov yog yooj yim tshwm sim. Tom qab kev teeb tsa ntawm ceramic nres ncoo, nyob rau hauv ib txwm tsav tsheb, yuav tsis muaj suab nrov txawv txav (uas yog, khawb suab). Vim tias cov khoom siv hluav taws xob ceramic tsis muaj cov khoom siv hlau, cov hlau tsis muaj suab nrov ntawm kev sib txhuam ntawm cov tsoos hlau nres thiab ob qhov chaw (uas yog, lub nres nres thiab lub nres nres) raug zam.

(2) Kev sib txhuam coefficient. Kev sib txhuam coefficient yog qhov tseem ceeb tshaj plaws kev ua tau zoo ntawm cov khoom siv sib txhuam, uas muaj feem xyuam nrog lub peev xwm ntawm cov brakes. Nyob rau hauv cov txheej txheem braking vim kev sib txhuam generated thaum tshav kub kub, qhov nce nyob rau hauv kev ua hauj lwm kub, lub dav hlau brakes kev sib txhuam cov khoom yog cuam tshuam los ntawm kub, kev sib txhuam coefficient pib poob. Hauv kev siv tswv yim, kev sib txhuam yuav raug txo, yog li txo cov nyhuv braking. Cov khoom sib txhuam ntawm cov pawm tsis zoo no tsis paub tab, thiab kev sib txhuam coefficient siab dhau, ua rau muaj qhov tsis zoo xws li kev taw qhia poob, kub hnyiab, thiab khawb ntawm cov brake discs thaum lub sijhawm braking. Txawm hais tias qhov kub ntawm lub nres nres mus txog 650 degrees, qhov kev sib txhuam coefficient ntawm ceramic nres ncoo tseem yog 0.45-0.55, uas tuaj yeem ua kom lub tsheb muaj kev ua haujlwm zoo.

(3) Ceramics muaj thermal stability thiab thermal conductivity tsawg, zoo hnav tsis kam. Kev siv lub sijhawm ntev yog 1000 degrees, uas ua rau cov ceramic haum rau kev ua haujlwm siab ntawm ntau yam kev ua haujlwm siab, thiab tuaj yeem ua tau raws li cov kev xav tau ntawm kev kub ceev, kev nyab xeeb thiab siab hnav tsis kam ntawm cov ntaub thaiv.

(4) Nws muaj lub zog zoo txhua yam thiab lub cev muaj zog. Muaj peev xwm tiv taus siab loj thiab shear quab yuam. Kev sib txhuam cov khoom siv hauv kev sib dhos ua ntej siv, nws yog qhov yuav tsum tau xyaum, sib dhos thiab lwm yam kev ua haujlwm, txhawm rau ua kom nres nres sib dhos. Yog li ntawd, nws yuav tsum tau hais tias cov khoom siv sib txhuam yuav tsum muaj lub zog txhua yam kom ntseeg tau tias tsis muaj kev puas tsuaj thiab tawg thaum lub sijhawm ua haujlwm lossis siv.

(5) Nws muaj thermal attenuation tsawg heev. Txawm hais tias nws yog thawj tiam ntawm cov khoom siv ceramic ntawm M09 los yog lub cim thib plaub ntawm ceramic nres ncoo ntawm TD58, nws tseem tuaj yeem ua kom lub tsheb muaj kev ua haujlwm zoo braking kom muaj kev nyab xeeb, thiab qhov tshwm sim ntawm thermal attenuation ntawm lub nres nres yog me me heev. .

(6) Txhim kho kev ua haujlwm ntawm cov pawm nres. Vim hais tias ntawm cov cua kub sai sai ntawm cov ntaub ntawv ceramic, nws cov kev sib txhuam coefficient yog siab dua li ntawm cov hlau nres hauv kev tsim cov brakes.

(7) Kev ruaj ntseg. Nres ncoo yuav ua rau kub kub sai sai thaum nres, tshwj xeeb tshaj yog thaum muaj kev kub ceev lossis nres thaum muaj xwm ceev. Thaum kub kub, qhov sib txhuam coefficient ntawm cov ntawv sib txhuam yuav txo qis, uas yog hu ua thermal decay. Qhov tsis tshua muaj thermal tawg ntawm cov pawm nres zoo tib yam, lub xeev kub thiab cov roj nres kub nce thaum muaj xwm txheej ceev ua rau cov nres nres qeeb, thiab txawm tias qhov poob ntawm kev cuam tshuam kev nyab xeeb qis.

(8) Kev nplij siab. Nyob rau hauv cov lus qhia kev nplij siab, cov tswv feem ntau txhawj xeeb txog lub suab nrov ntawm cov nres nres, qhov tseeb, lub suab nrov kuj yog ib qho teeb meem uas cov nres nres tsis tuaj yeem daws tau ntev. Lub suab nrov yog tsim los ntawm qhov txawv txav ntawm kev sib txhuam ntawm cov phaj sib txhuam thiab cov kev sib txhuam disc, thiab cov laj thawj rau nws cov khoom siv yog qhov nyuaj heev, braking quab yuam, nres disc kub, tsheb ceev thiab huab cua tej zaum yuav ua rau lub suab nrov.

Tsis tas li ntawd, qhov ua rau lub suab nrov hauv peb theem sib txawv ntawm kev pib braking, kev siv braking thiab kev tso tawm ntawm braking yog txawv. Yog hais tias lub suab nrov yog nyob nruab nrab ntawm 0 thiab 550Hz, lub tsheb yuav tsis hnov, tab sis yog hais tias nws yog ntau tshaj 800Hz, tus tswv yuav pom tseeb tias lub nres nres.

(9) Cov khoom zoo heev. Ceramic brake pads siv cov khoom loj ntawm graphite / tooj dag / advanced ceramics (non-asbestos) thiab semi-hlau thiab lwm yam khoom siv high-tech nrog kub tsis kam, hnav tsis kam, nres ruaj khov, kho kev puas tsuaj nres disc, kev tiv thaiv ib puag ncig, tsis muaj suab nrov ntev. kev pab cuam lub neej thiab lwm yam zoo, kom kov yeej cov tsoos brakes ntawm cov khoom thiab cov txheej txheem tsis xws luag yog tam sim no lub ntiaj teb no sophisticated advanced ceramic nres pads. Tsis tas li ntawd, cov ntsiab lus ntawm cov pob zeb ceramic slag yog qhov tsawg, qhov kev txhim kho yog qhov zoo, thiab ob qho tib si hnav thiab lub suab nrov ntawm lub nres nres tuaj yeem txo.

(10) Lub neej ua haujlwm ntev. Kev pabcuam lub neej yog qhov qhia tau tias peb muaj kev txhawj xeeb heev, lub neej kev pabcuam ntawm cov pawm zoo tib yam yog qis dua 60,000 mais, thiab lub neej kev pabcuam ntawm cov khoom siv ceramic yog ntau tshaj 100,000 kilometers. Tias yog vim li cas cov khoom siv tshwj xeeb siv rau hauv cov khoom siv hluav taws xob ceramic tsuas yog 1 mus rau 2 hom electrostatic hmoov, thiab lwm yam ntaub ntawv yog cov ntaub ntawv uas tsis yog electrostatic, yog li cov hmoov yuav raug tshem tawm los ntawm cua nrog lub zog ntawm lub tsheb, thiab yuav tsis ua raws li lub log cuam tshuam rau kev zoo nkauj ntawm lub log. Lub neej ntawm cov khoom siv ceramic yog ntau tshaj 50% siab dua li ntawm cov hlau ib nrab. Tom qab siv cov ntaub thaiv npog ceramic, yuav tsis muaj khawb (uas yog, khawb) ntawm lub nres nres, uas txuas ntxiv lub neej kev pab cuam ntawm lub tsheb nres disc los ntawm 20%.