Nres khau thiab cov hlua nres yog cov kev sib txuam uas siv rau kev qis, kev tawm dag siv thiab kev nres tsheb ntawm ntau yam tsheb thiab khoom siv dag zog. Tsuas siv cov khoom sib txawv thiab muaj cov npe txawv, xws li: tsheb ciav hlau, khau iav nres tsheb, nres tsheb nres, kev lag luam thiab kev ua qoob loo siv tshuab qe, siv nyob rau ntau qhov chaw, thiab txhua tus nyias muaj nyias tus qauv. Nres povtseg yog cov kws ntaus txhuam hab ntaus nruas.
Lub
Lub tsheb npav yuav tsum tau siv thaum lub sijhawm khiav tsheb ciav hlau. Cov ntiv taw uas rub tawm ncaj qha mus rau lub log tsheb kom nres tsheb ciav hlau yog nres khau. Lub khau ntaub ua los ntawm cov cam khwb cia hlau los yog lwm cov khoom tuav lub lauj kaub thaum siv nres thiab nres lub log ntawm kev sib txhuam.
Nyob rau hauv txoj kev no, lub tshuab ntaus ntawv ua rau cov hluav taws xob loj loj rau hauv thermal energy dissipated hauv qhov chaw. Qhov zoo ntawm no braking nyhav nyob ntawm tsuas yog nyob rau hauv lub peev xwm dissipate frictional tshav kub zog. Thaum siv txoj kev siv braking no, qhov kev sib txhuam ntawm cov khau nres me me, thiab feem ntau ntawm cov thermal load yog khoom los ntawm lub log. Qhov siab tshaj ntawm lub tsheb ciav hlau, qhov ntau dua thermal load rau hauv lub log thaum lub sijhawm siv cov braking. Yog hais tias lub khau nres ua los ntawm cov cam khwb cia hlau, cov khau brake yuav yaj los ntawm qhov kub; txawm tias muaj cov khoom siv hluav taws xob ntau dua los siv, qhov kub yuav siab npaum li 400-450 ° C. Thaum lub laub kub kub nce mus rau ib qho twg, nws yuav ua rau lub looj coj, tawg los tev, cuam tshuam rau kev pab cuam lub neej tseem cuam tshuam kev nyab xeeb ntawm tsheb khiav. Nws tuaj yeem pom tias cov kev cai nres tsheb tsis sib haum xeeb tsis tuaj yeem hloov cov kev xav tau ntawm kev kub ceev.
Nrig nplais pawg: cam khwb cia hlau nres khau thiab hluavtaws nres cov khau. Cov hlau cam khwb cia muab faib ua cov hlau cam khwb cia hlau, khau nruab nrab phosphorus nres khau, cov fosforus hlau nres cov khau thiab cov hlau thawv ntim hlau nres tsheb. Khoom siv hluav taws xob khau, raws li nws cov lus qhia yooj yim, tau muab faib ua cov khoom hluav taws xob ua ke nres cov khau thiab roj hmab raws lub khau nres. Raws li kev txhuam coefficient, nws yuav raug muab faib ua cov kev sib txhuam coefficient dua lub khau thiab kev sib txhuam coefficient dua lub khau. Nruab nrab-phosphorus cam khwb cia hlau nres khau, phomphorus cam khwb cia hlau nres nres khau thiab tsis muaj kev sib tsoo hluavtaws nres cov khau khiab dav dav dav dav nkawm khau.
Cov nyhuv ntawm hluavtaws nres khau rau ntawm lub log:
1. Kub nti ----- Vim tias kev txom nyem tsis zoo ntawm lub tshuab khau thiab lub log, lub zos overheating tshwm sim rau lub log tread, tsim cov pob kub, thiab thermal cracking yuav tshwm sim rau ib leeg.
2. Txo daim ntawm lub log - Siv cov khoom hluav taws xob khau rau hauv seem uas nquag txhuam braking kom nce lub ntsuas cua. Vim lub zos kev sib txhuam thiab thermal expansion ntawm cov khoom siv hluav taws xob txhuam khoom, lub log tread tuaj yeem siv daim nplaum. Qhov siab tshaj qhov kub, qhov yooj yim dua qhov hnav tau tsim rau sab nraub ntawm lub log tread, thiab cov nplhaib hnav yog tshwm sim los ntawm qhov kev sib txhuam ntawm lub ntug kev khau.
3, cov khoom siv khi hlua khau - thiab hluav taws xob rau hauv lub caij ntuj no, qhov sib txeeb no yuav tshwm sim. Qhov no yog vim muaj qhov tseeb tias dej yog nkag tau rau hauv qhov kev sib txhuam saum npoo ntawm lub tshuab khau.
