Kev hloov pauv thiab kev txhim kho ntawm cov khoom siv sib txhuam semi-hlau
Semi-metallic brake pads yog ib hom tshiab ntawm kev sib txhuam cov khoom tsim los ntawm cov khoom siv sib txhuam organic thiab cov khoom siv hmoov metallurgy kev sib txhuam. Hlau fibers yog siv los hloov cov asbestos fibers. Nws yog cov khoom siv tsis-asbestos kev sib txhuam tsim los ntawm American Bendis tuam txhab nyob rau hauv thaum ntxov 1970s. Khoom siv.
"Semi-hlau" hybrid brake pads feem ntau siv cov ntaub plaub hlau ntxhib los ua cov fiber ntau thiab cov khoom tseem ceeb. Asbestos thiab non-asbestos organic brake pads (NAO) tuaj yeem yooj yim sib txawv ntawm cov tsos (zoo fibers thiab hais), thiab lawv kuj muaj qee yam khoom sib nqus.
Tebchaws Asmeskas, Tebchaws Europe, Nyiv thiab lwm lub tebchaws tau txhawb nqa kev siv cov khoom sib txhuam ib nrab ntawm cov hlau loj txij li xyoo 1960. Kev hnav tsis kam ntawm daim ntawv ib nrab hlau yog ntau dua 25 feem pua siab dua li ntawm daim ntawv asbestos, thiab tam sim no nws nyob hauv txoj haujlwm tseem ceeb hauv kev lag luam nres tsheb hauv kuv lub tebchaws. Hauv cov tsheb feem ntau hauv Tebchaws Meskas, tshwj xeeb tshaj yog cov tsheb thiab cov tsheb thauj khoom, cov khoom siv hluav taws xob semi-metallic muaj ntau dua 80 feem pua.
Txawm li cas los xij, cov khoom tseem muaj qhov tsis zoo ntawm cov hlau fibers ua kom yooj yim rau xeb, siab thermal conductivity, siab hardness, thiab siab ceev.
Txawm hais tias "semi-hlau" muaj ntau yam tsis txaus, nws tseem yog thawj qhov kev xaiv rau lub tsheb nres tsheb vim nws cov khoom ruaj khov thiab tus nqi qis. Txawm li cas los xij, raws li kev lag luam thoob ntiaj teb tau nce siab ntxiv rau cov khoom siv asbestos-dawb thiab hlau-tsis tshua muaj kev sib txhuam ib puag ncig, qhov no txwv cov ntsiab lus ntawm cov hlau tsis zoo thiab tooj liab hauv cov ntaub ntawv sib txhuam. Nws tuaj yeem pom tias cov khoom sib txhuam "semi-hlau" kuj tseem yuav maj mam thim. theem keeb kwm.
