High-carbon cast iron (typically containing >2.5% carbon) yog qhov kev xaiv zoo dua rau siab -kev ua haujlwm nres discs vim tias nws cov qauv graphite txhim kho kev hnav tsis kam, thermal conductivity, thiab tsis kam mus rau kub ploj, thaum tswj kev sib txhuam ruaj khov thiab kev tswj tus nqi.
- Zoo heev thermal conductivity thiab kub dissipation:Lub flake lossis spherical graphite nyob rau hauv siab - carbon cam khwb cia hlau ua raws li tus kheej -lubricating thiab cua sov- ua channel, sai thiab sib npaug dispersing cov cua sov uas tsim los ntawm kev sib txhuam braking, txo cov thermal stress, thiab txo qhov kev pheej hmoo ntawm tshav kub ploj thiab deformation.
- Zoo hnav tsis kam thiab thermal qaug zog tsis kam:Cov ntsiab lus carbon siab txhawb nqa graphite nag lossis daus, tsim lub microporous nti cia qauv, txo tus nres nres -disc hnav; graphite kuj absorbs kev co, suppressing nres shudder, ua rau nws haum rau nquag hnyav braking scenarios (xws li roob txoj kev thiab racetracks).
- Stable coefficient ntawm kev sib txhuam:Graphite tuav interfacial lubrication thiab kev sib txhuam sib npaug ntawm qhov kub thiab txias, zam kev hloov pauv sai ntawm "mos hauv lub xeev txias mus rau qhov nyuaj hauv lub xeev kub," muab qhov kev xav ntawm kev sib tsoo; piv rau cov hlau cam khwb cia zoo tib yam lossis carbon steel, nws qhov kev ua tau zoo yog ruaj khov nyob rau hauv 400-600℃kev khiav hauj lwm ntau.
- Qhov sib npaug ntawm qhov kev ua haujlwm casting thiab tus nqi:High- carbon cam khwb cia hlau muaj fluidity zoo, yog ib qho yooj yim rau tsim complex ventilated disc lug, thiab tsis xav tau cov txheej txheem kim ntawm carbon ceramics; Txawm hais tias me ntsis hnyav dua li cov hlau los yog alloy discs, nws tag nrho cov thermal-kev sib txhuam- kev lag luam ua rau nws xaiv qhov tseem ceeb rau tsev neeg lub tsheb thiab cov tsheb ua haujlwm.
- Cov kev txwv ntawm kev sib piv:Cov pa roj carbon steel (<2% C) has high hardness but poor thermal conductivity and is prone to hot cracking; carbon ceramics have even higher temperature resistance (>1000℃) tab sis kim thiab tsis muaj zog txias - lub xeev braking, ua rau lawv tsis haum rau kev siv txhua hnub; siab - carbon cam khwb cia hlau ua tiav qhov kev pom zoo ntawm cov "kub muaj peev xwm + tshav kub dissipation + nqi" daim duab peb sab.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias "siab-carbon cam khwb cia hlau" ≠ "siab- carbon steel"- tom kawg muaj cov ntsiab lus carbon tsawg (tsawg dua lossis sib npaug li 2%), yog cov khoom siv forged, thiab tsis zoo thermal poob siab thaum siv hauv cov nres discs; cov ntaub ntawv nyiam tiag tiag yog grey cam khwb cia hlau lossis alloy- cog cam khwb cia hlau (xws li HT250+Ni/Cu), uas ua tiav kev txhim kho tseem ceeb los ntawm kev tswj hwm ntawm graphite morphology.
