Kev txhais lus dav dav tshaj plaws ntawm cov pawm nres
Lub brake ncoo yog hais txog cov khoom sib txhuam ntawm lub nruas nres lossis nres nres uas tig nrog lub log. Kev sib txhuam hauv ob sab phlu thiab kev sib txhuam hauv nws yog raug rau sab nraud los tsim kev sib txhuam kom ua tiav lub hom phiaj ntawm lub tsheb deceleration. Kev sib txhuam thaiv yog cov khoom siv sib txhuam uas raug thawb thiab nyem rau ntawm tus nres disc los ntawm clamping piston. Vim kev sib txhuam, qhov sib txhuam thaiv yuav maj mam hnav. Feem ntau hais lus, tus nqi qis dua ntawm lub ncoo nres, qhov hnav sai dua. Kev sib txhuam thaiv tau muab faib ua ob ntu: cov khoom sib txhuam thiab cov phaj hauv qab. Cov khoom siv sib txhuam tseem tuaj yeem siv tom qab hnav thiab tsim kua muag. Tom qab siv cov khoom siv sib txhuam, cov phaj hauv qab yuav ncaj qha hu rau tus nres disc, uas thaum kawg yuav plam cov nyhuv braking thiab ua rau lub nres nres. Nres disc kho yog kim heev.
Feem ntau, cov kev cai yooj yim rau cov pawm nres feem ntau suav nrog kev hnav tsis kam, kev sib txhuam coefficient loj, thiab kev ua haujlwm zoo ntawm cov rwb thaiv tsev. Raws li txoj kev sib txawv ntawm kev sib tsoo, cov pawm nres tuaj yeem muab faib ua:
Muaj ob hom nruas nres ncoo thiab disc nres ncoo. Raws li cov ntaub ntawv sib txawv, cov pawm nres feem ntau tuaj yeem muab faib ua peb hom: asbestos hom, semi-hlau hom, thiab NAO hom (ie non-asbestos organic type) brake pads. Nrog rau txoj kev loj hlob sai ntawm cov cuab yeej siv niaj hnub no, zoo li lwm cov khoom siv ntawm lub braking system, lub nres nres lawv tus kheej tau tsim thiab hloov pauv nyob rau xyoo tas los no. Hauv cov txheej txheem tsim khoom ib txwm muaj, cov khoom siv sib txhuam siv rau ntawm lub ncoo nres yog sib xyaw ntawm ntau yam binders lossis additives, thiab fibers tau ntxiv rau nws los txhim kho nws lub zog thiab ua lub luag haujlwm txhawb nqa. Nres pad manufacturers feem ntau nruj-lipped txog cov lus tshaj tawm ntawm cov ntaub ntawv siv, tshwj xeeb tshaj yog cov qauv tshiab. Tau kawg, qee cov khoom xyaw xws li: mica, silica, roj hmab chips, thiab lwm yam yog pej xeem. Qhov kawg braking nyhuv, hnav tsis kam, kub tsis kam thiab lwm yam khoom ntawm lub nres nres yuav nyob ntawm seb tus txheeb ze ntawm cov khoom sib txawv. Cov hauv qab no yog cov lus luv luv txog cov brakes ntawm ntau yam khoom sib txawv. Asbestos-hom nres pads Asbestos tau siv los ua cov khoom siv txhawb zog rau cov pawm nres txij thaum pib. Vim muaj lub zog siab thiab kub tsis kam ntawm asbestos fibers, nws tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm cov pawm nres, clutch discs thiab liners. Cov fiber ntau no muaj lub peev xwm tensile muaj zog, uas tuaj yeem phim cov qib siab steel, thiab tuaj yeem tiv taus qhov kub thiab txias ntawm 316 degree. Dab tsi ntxiv, asbestos kuj pheej yig, thiab nws tau muab rho tawm los ntawm cov ore ntawm amphibole, uas tau pom nyob rau hauv ntau qhov ntau hauv ntau lub teb chaws. Hauv kev faib ua feem ntawm asbestos-hom nres ncoo, asbestos suav rau 40-60 feem pua, tab sis tam sim no tib neeg pom tias feem ntau asbestos muaj feem cuam tshuam. Asbestos tau lees paub los ntawm cov kws kho mob ua ib qho carcinogen. Nws cov koob zoo li cov fibers tuaj yeem nkag mus rau hauv lub ntsws tau yooj yim thiab nyob twj ywm, ua rau muaj kev txhawb nqa, tuaj yeem ua rau muaj qhov tshwm sim ntawm lub ntsws cancer, tab sis lub sijhawm incubation ntawm tus kab mob no tuaj yeem ntev li 15-30 xyoo, yog li tib neeg feem ntau tsis ua. paub txog kev puas tsuaj los ntawm asbestos. Tsuav yog cov asbestos fiber ntau kho los ntawm cov khoom sib txhuam nws tus kheej, nws yuav tsis ua rau muaj kev phom sij rau cov neeg ua haujlwm noj qab haus huv. Txawm li cas los xij, thaum cov asbestos fiber raug tso tawm nrog rau kev sib txhuam nres los ua cov plua plav nres, nws yuav dhau los ua cov khoom muaj feem cuam tshuam txog kev noj qab haus huv.
Lub brake ncoo yog hais txog cov khoom sib txhuam ntawm lub nruas nres lossis nres nres uas tig nrog lub log. Kev sib txhuam hauv ob sab phlu thiab kev sib txhuam hauv nws yog raug rau sab nraud los tsim kev sib txhuam kom ua tiav lub hom phiaj ntawm lub tsheb deceleration. Kev sib txhuam thaiv yog cov khoom siv sib txhuam uas raug thawb thiab nyem rau ntawm tus nres disc los ntawm clamping piston. Vim kev sib txhuam, qhov sib txhuam thaiv yuav maj mam hnav. Feem ntau hais lus, tus nqi qis dua ntawm lub ncoo nres, qhov hnav sai dua. Kev sib txhuam thaiv tau muab faib ua ob ntu: cov khoom sib txhuam thiab cov phaj hauv qab. Cov khoom siv sib txhuam tseem tuaj yeem siv tom qab hnav thiab tsim kua muag. Tom qab siv cov khoom siv sib txhuam, cov phaj hauv qab yuav ncaj qha hu rau tus nres disc, uas thaum kawg yuav plam cov nyhuv braking thiab ua rau lub nres nres. Nres disc kho yog kim heev.
Feem ntau, cov kev cai yooj yim rau cov pawm nres feem ntau suav nrog kev hnav tsis kam, kev sib txhuam coefficient loj, thiab kev ua haujlwm zoo ntawm cov rwb thaiv tsev. Raws li txoj kev sib txawv ntawm kev sib tsoo, cov pawm nres tuaj yeem muab faib ua:
Muaj ob hom nruas nres ncoo thiab disc nres ncoo. Raws li cov ntaub ntawv sib txawv, cov pawm nres feem ntau tuaj yeem muab faib ua peb hom: asbestos hom, semi-hlau hom, thiab NAO hom (ie non-asbestos organic type) brake pads. Nrog rau txoj kev loj hlob sai ntawm cov cuab yeej siv niaj hnub no, zoo li lwm cov khoom siv ntawm lub braking system, lub nres nres lawv tus kheej tau tsim thiab hloov pauv nyob rau xyoo tas los no. Hauv cov txheej txheem tsim khoom ib txwm muaj, cov khoom siv sib txhuam siv rau ntawm lub ncoo nres yog sib xyaw ntawm ntau yam binders lossis additives, thiab fibers tau ntxiv rau nws los txhim kho nws lub zog thiab ua lub luag haujlwm txhawb nqa. Nres pad manufacturers feem ntau nruj-lipped txog cov lus tshaj tawm ntawm cov ntaub ntawv siv, tshwj xeeb tshaj yog cov qauv tshiab. Tau kawg, qee cov khoom xyaw xws li: mica, silica, roj hmab chips, thiab lwm yam yog pej xeem. Qhov kawg braking nyhuv, hnav tsis kam, kub tsis kam thiab lwm yam khoom ntawm lub nres nres yuav nyob ntawm seb tus txheeb ze ntawm cov khoom sib txawv. Cov hauv qab no yog cov lus luv luv txog cov brakes ntawm ntau yam khoom sib txawv. Asbestos-hom nres pads Asbestos tau siv los ua cov khoom siv txhawb zog rau cov pawm nres txij thaum pib. Vim muaj lub zog siab thiab kub tsis kam ntawm asbestos fibers, nws tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm cov pawm nres, clutch discs thiab liners. Cov fiber ntau no muaj lub peev xwm tensile muaj zog, uas tuaj yeem phim cov qib siab steel, thiab tuaj yeem tiv taus qhov kub thiab txias ntawm 316 degree. Dab tsi ntxiv, asbestos kuj pheej yig, thiab nws tau muab rho tawm los ntawm cov ore ntawm amphibole, uas tau pom nyob rau hauv ntau qhov ntau hauv ntau lub teb chaws. Hauv kev faib ua feem ntawm asbestos-hom nres ncoo, asbestos suav rau 40-60 feem pua, tab sis tam sim no tib neeg pom tias feem ntau asbestos muaj feem cuam tshuam. Asbestos tau lees paub los ntawm cov kws kho mob ua ib qho carcinogen. Nws cov koob zoo li cov fibers tuaj yeem nkag mus rau hauv lub ntsws tau yooj yim thiab nyob twj ywm, ua rau muaj kev txhawb nqa, tuaj yeem ua rau muaj qhov tshwm sim ntawm lub ntsws cancer, tab sis lub sijhawm incubation ntawm tus kab mob no tuaj yeem ntev li 15-30 xyoo, yog li tib neeg feem ntau tsis ua. paub txog kev puas tsuaj los ntawm asbestos. Tsuav yog cov asbestos fiber ntau kho los ntawm cov khoom sib txhuam nws tus kheej, nws yuav tsis ua rau muaj kev phom sij rau cov neeg ua haujlwm noj qab haus huv. Txawm li cas los xij, thaum cov asbestos fiber raug tso tawm nrog rau kev sib txhuam nres los ua cov plua plav nres, nws yuav dhau los ua cov khoom muaj feem cuam tshuam txog kev noj qab haus huv.
