Lub evolution keeb kwm ntawm tsheb nres kev sib txhuam cov ntaub ntawv

Txoj kev loj hlob ntawm tsheb nres cov ntaub ntawv kev sib txhuam yog muab faib ua peb theem: thawj theem yog theem ntawm kev loj hlob ntawm cov khoom siv nres, uas yog lub nruas nres;theem thib ob yog theem ntawm kev loj hlob sai ntawm cov ntaub ntawv nres, Ntau yam khoom tshiab tau pib yug.Cov theem no yog tus nres uas feem ntau siv disc nres;Qhov thib peb theem yog theem thaum cov khoom siv nres tau nce mus rau qhov siab tshaj plaws, thiab theem no yog tus nres uas feem ntau siv cov disc brakes, ntau yam khoom siv tshiab tau tshwm sim nyob rau hauv qhov tsis muaj qhov kawg.

Technical standard thiab muaj pes tsawg leeg ntawm tsheb nres kev sib txhuam khoom

1.1 Technical Standards

Ua ntej, kom zoo thiab du los tiv thaiv kev sib txhuam.Tsim nyog thiab ruaj khov tiv thaiv kev sib txhuam tuaj yeem ua kom muaj kev sib txhuam "mos".Thib ob, zoo heev mechanical zog thiab lub cev muaj zog.Lub zog siv tshuab tuaj yeem ua kom ntseeg tau tias cov khoom siv tsis tuaj yeem tawg thiab zam qhov tshwm sim loj uas yuav tshwm sim los ntawm kev nres nres.Thib peb, qis braking nrov.Txhawm rau tiv thaiv ib puag ncig, lub tsheb nres lub suab nrov yuav tsum tsis pub tshaj 85dB.Plaub, txo qhov hnav ntawm lub chassis.Cov txheej txheem braking yuav tsum tsis txhob hnav thiab khawb ntawm qhov sib txhuam disc.

1.2 Kev sib xyaw ntawm cov khoom sib txhuam nres

Ua ntej, organic binders.Phenolic resins thiab hloov phenolic resins yog ob yam tseem ceeb heev.Thib ob, cov khoom siv fiber ntau.Hlau fibers hloov asbestos ua cov khoom tseem ceeb, thiab lubricating Cheebtsam, fillers thiab kev sib txhuam modifiers yog embedded nyob rau hauv cov hlau thiab sintered los tsim sintered nres kev sib txhuam cov ntaub ntawv.Thib peb, tus muab tub lim.Cov reagents cuam tshuam tau tsim thiab cov reagents tswj kev sib txhuam cov khoom ua rau qhov no.

1.3 Kev faib tawm ntawm Automotive Brake Materials

(1) Asbestos nres kev sib txhuam cov khoom siv: kev sib txhuam kev ua haujlwm zoo, siab melting point, siab mechanical zog thiab muaj zog adsorption quab yuam ua asbestos fibers sawv tawm.Txij li thaum xyoo 1970, nws txoj kev loj hlob tau cuam tshuam los ntawm kev ua haujlwm tsis zoo ntawm kev hloov pauv cua sov thiab cov khoom siv ntxiv.
(2) Hlau-raws li tsis-asbestos nres kev sib txhuam cov khoom siv: Cov khoom sib txhuam nres ua los ntawm cov hluav taws kub-calcined hlau thiab cov hlau sib cais zoo yog tsim los ntawm cov khoom siv no.Cov calcined hlau thiab tooj liab thiab lwm yam hlau yog qhov nyuaj rau kev sib cais thiab yooj yim rau fuse.tsis siv.Ntawm qhov tsis sib xws, cov khoom sib xyaw ua kom zoo hlau nres kev sib txhuam ntawm cov khoom siv tooj liab thiab hlau tsis yog siv dav vim nws cov nqi siab, ntau cov kauj ruam ntau lawm, thiab tsim suab nrov yooj yim.
(3) Semi-hlau-raws li tsis-asbestos nres kev sib txhuam cov khoom: ntau yam tsis-hlau fibers thiab hlau fibers zoo heev txhim kho kev sib txhuam ntawm cov khoom siv nres, yog li lawv tau siv dav.Txawm li cas los xij, nws cov hlau fibers yooj yim rau xeb thiab ua rau hnyav hnyav thiab lwm yam teeb meem tseem yog qhov tseem ceeb ntawm kev tshawb fawb los ntawm cov kws tshaj lij los ntawm txhua qhov chaw ntawm lub neej.
(4) Cov ntaub ntawv tsis-asbestos tsis-asbestos nres kev sib txhuam: ntau cov khoom siv carbon / carbon txhuam yeej nrog lawv cov kev sib txhuam zoo heev thiab kev khoov siab.Tab sis tus nqi siab kuj txwv nws txoj kev nce qib.Thoob ntiaj teb, kuv lub teb chaws yog nyob rau hauv ib txoj hauj lwm nyob rau hauv kev npaj ntawm ntau yam carbon / carbon nres cov ntaub ntawv.
(5) Ntau yam kev sib txhuam ntawm cov khoom siv hauv kev ua haujlwm ntawm engineering ceramics: cov yam ntxwv ntawm kev hnav qis, muaj peev xwm ua kom sov siab thiab tiv thaiv kev sib txhuam tau ua rau ntau tus kws tshawb fawb siv cov khoom siv tsis zoo no los tsim cov khoom siv nres, thiab kev vam meej tau ua tiav. .Txawm li cas los xij, nws qhov tsis zoo ntawm kev tawg yooj yim kuj txwv nws qhov chaw thov.

Txoj kev loj hlob ntawm domestic automotive nres cov ntaub ntawv

Tam sim no, cov khoom siv tsim qauv tseem yog qhov pib rau kev tshawb fawb ntawm cov khoom siv tsheb nres kev sib txhuam.Txawm hais tias txoj kev sib txawv ntawm lub teb chaws mus rau lub teb chaws, kev txhim kho kev ua tau zoo ntawm cov ntaub ntawv sib txhuam tshiab thiab ua tau raws li qhov xav tau ntawm kev tiv thaiv ib puag ncig tseem yog lub hom phiaj kawg.Raws li kev taw qhia ntawm txoj kev loj hlob ruaj khov, txoj kev loj hlob ntawm cov khoom siv sib txhuam nres tau tsim los ntawm kev sib txawv ntawm cov suab nrov qis thiab tsis muaj kuab paug.Txoj kev loj hlob no kuj yog ua raws li cov qauv tam sim no thiab cov kev xav tau ntawm kev sib raug zoo.Nrog rau txoj kev loj hlob sai ntawm kev tsim technology, kev txhim kho ntawm cov khoom siv tsheb nres yuav kuj qhia cov yam ntxwv sib txawv.Ntau yam khoom siv nres tuaj yeem xaiv rau cov tsheb uas muaj huab cua sib txawv, thaj chaw thiab kev ua haujlwm.Nyob rau hauv no txoj kev, lub braking kev ua tau zoo ntawm lub tsheb yuav ua tau ib tug high-kev ua tau zoo thiab high-efficiency braking nyhuv.

Nyob rau hauv ib txwm muaj xwm txheej, kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis yog qhov lav rau kev ua kom zoo dua qub thiab muaj kev sib txawv ntawm cov ntaub ntawv sib txhuam, thiab tuaj yeem ua tau raws li qhov xav tau ntawm kev lag luam tsheb.Qhov tsis txaus ntawm ib qho kev txhawb zog fiber ntau yog qhov tsis tuaj yeem zam, qhov du ntawm iav fiber ntau yog qhov nyuaj rau infiltrate nrog cob;cov khoom siv steel yog qhov nyuaj kom tsis txhob muaj teeb meem ntawm xeb;cov khoom siv carbon yog qhov nyuaj hauv cov txheej txheem, siab nqi, thiab nyuaj rau kev txhawb nqa.Yog li ntawd, hybrid fibers tau dhau los ua qhov kev tshawb fawb ntawm ntau lub teb chaws.Hlau fibers, carbon fibers, carbon fibers thiab tooj liab fibers tuaj yeem kos rau ntawm ntau yam zoo, muab kev ua si tag nrho rau qhov zoo ntawm fibers, txo nqi, thiab txhim kho kev ua haujlwm.Txhawm rau daws qhov teeb meem ntawm phenolic resin nyob rau hauv qhov kev txiav txim ntawm qhov kub thiab txias, ntau lub tuam txhab thiab cov chaw tshawb fawb tshawb fawb siv lwm cov ntaub ntawv zoo tshaj plaws xws li butylbenzene los ua phenolic resin txawv ntawm yav dhau los los ntawm lawv cov kev tshawb fawb thiab kev loj hlob.Yog li ntawd, xws li ib tug tshiab phenolic resin Resin kuj yog ib tug tshiab kev taw qhia rau kev tshawb fawb thiab kev loj hlob ntawm automotive nres kev sib txhuam cov ntaub ntawv.

Cov ntsiab lus

Piv txwv li, txoj kev loj hlob ntawm tsheb nres kev sib txhuam cov ntaub ntawv tshwm sim ib tug tom qab lwm nyob rau hauv txoj kev loj hlob ntawm lub tsheb, uas tau ua lub luag hauj lwm tsav tsheb nyob rau hauv kev txhim kho cov kev ua tau zoo ntawm tsheb braking.Nrog rau kev tsim cov thev naus laus zis tshiab thiab cov ntaub ntawv tshiab, kev txhim kho ntawm cov khoom siv tsheb nres kev sib txhuam yuav pom muaj ntau haiv neeg thiab kev siv tsawg, thiab kev txhim kho ntawm cov khoom siv thev naus laus zis kuj tseem yuav txhawb nqa txoj kev loj hlob ntawm cov khoom siv tsheb nres kev sib txhuam.