Cov ntaub ntawv txhawb zog hauv cov ntaub ntawv sib txhuam feem ntau muab cov khoom sib txhuam siab ua kom muaj zog, ua rau lawv tuaj yeem tiv taus lub zog thauj khoom los ntawm kev siv tshuab thaum lub sij hawm tsim cov khoom sib txhuam nrog rau kev cuam tshuam quab yuam, shear force, thiab compressive kev nyuaj siab generated los ntawm braking thaum siv. , kom tsis txhob tawg thiab puas.
Cov kev cai yooj yim ntawm cov ntaub ntawv sib txhuam rau cov khoom siv ntxiv muaj xws li: qhov tseem ceeb ntawm cov khoom siv ntxiv dag zog; zoo kub tsis kam; tsim nyog thiab ruaj khov kev sib txhuam coefficient; nruab nrab hardness; thiab kev ua haujlwm zoo. Minerals siv los txhawb cov ntaub ntawv feem ntau yog fiber ntau cov zaub mov, feem ntau cov ntxhia fibers, asbestos fibers, basalt fibers, thiab lwm yam.
Hebang Fiber yog cov chaw tsim khoom tshwj xeeb hauv kev tsim cov asbestos-dawb cov ntxhia fibers thiab basalt fibers. Cov fibers yog yaj thiab spun ntawm qhov kub ntawm 1450 ° C thiab muaj qhov kub thiab txias tsis kam. Qhov sib piv ntawm qhov ntev-rau-ntev yog ntau dua 30 npaug thiab muaj cov txheej txheem zoo heev.