Tsis muaj asbestos nres nres
Kuv ntseeg tias ntau tus phooj ywg uas hnov lub npe asbestos thawj zaug yuav xav tias nws yog hom paj rwb. Tab sis qhov tseeb, nws yog cov ntxhia silicate nrog cov qauv fibrous crystalline. Nws cov fibers me me heev uas lawv tsis tuaj yeem pom los ntawm qhov muag liab qab, thiab tau yooj yim nqus mus rau hauv cov pa hauv qab, ua rau pneumoconiosis, mob ntsws cancer, thoracic thiab peritoneal mesothelioma, thiab lwm yam qog nqaij hlav malignant. , tau teev tseg tias yog cov kab mob carcinogen thawj zaug los ntawm World Health Organization, thiab ntau lub tebchaws tau txwv tsis pub siv cov asbestos.
Asbestos brake pads raug txwv thoob ntiaj teb vim hais tias thaum asbestos brake pads raug rubbed, nano-scale hnyav hlau hais yuav raug tso tawm. Kev nqus pa ntawm tib neeg lub ntsws tuaj yeem ua rau mob qog noj ntshav xws li mob ntsws cancer. Nyob rau tib lub sijhawm, asbestos kuj tseem suav tias yog qhov tseem ceeb ntawm huab cua phem. Hauv kev faib ua feem ntawm asbestos-hom nres ncoo, asbestos suav txog 40 feem pua -60 feem pua. Cov microparticles tsim los ntawm kev hnav ntawm asbestos nres pads tau teev tseg raws li rau 6 tus neeg ua txhaum loj ntawm PM2.5 ua ke nrog cov pa phem xws li cov pa hluav taws xob hauv tsheb, cov pa pa tawm ntawm cov khw noj mov tsis tsim nyog, thiab kev lag luam thee combustion.
Txawm hais tias nws yog cov chaw tsim khoom ntawm asbestos brake pads, tus neeg yuav khoom ntawm asbestos brake pads, lossis tus kws kho mob tom qab muag, vim kev sib cuag thiab siv ntau zaus, suav tsis txheeb asbestos fibers yuav nqus tau, uas yuav ua rau muaj kev phom sij rau lawv txoj kev noj qab haus huv.
Tsis tas li ntawd, vim tias asbestos yog adiabatic, nws cov thermal conductivity yog qhov tsis zoo. Feem ntau, rov siv cov brakes yuav ua rau cov cua sov tuaj rau hauv cov pawm nres. Tom qab cov brakes kub, lawv cov kev ua haujlwm ntawm lub braking yuav hloov. Yuav kom tsim tau tib yam Kev sib txhuam thiab braking quab yuam yuav xav tau ntau lub sijhawm braking. Qhov tshwm sim no hu ua "brake shrinkage". Yog hais tias lub brakes ncav cuag qhov kub thiab txias, nws yuav ua rau lub brakes tsis ua haujlwm.
