Ntawm cov kab ntau lawm ntawm lub Hoobkas, yeej ib txwm muaj qee yam khoom siv uas "nqa hnyav" - xws li cov kav xa dej rau kev thauj cov ore thiab cov tso tsheb hlau luam rau cov khoom sib xyaw, uas yuav tsum tau cuam tshuam nrog cov khoom siv hluav taws xob nrawm thiab cov ntaub ntawv nyuaj txhua hnub. Cov ntaub ntawv no zoo li suav tsis txheeb cov pob zeb sib tsoo me me, rub tawm rau sab hauv phab ntsa ntawm cov khoom siv niaj hnub. Nyob rau tib lub sijhawm, cov cuab yeej siv yuav ua rau hauv av rau "bruised", uas tsis yog tsuas yog yuav tsum tau kaw ntau zaus rau kev saib xyuas, tab sis kuj tseem tuaj yeem cuam tshuam rau kev ua haujlwm zoo. Covsilicon carbide hnav-resistant hauv ob sab phluyog ib qho kev lag luam "cov ntaub thaiv npog" tshwj xeeb tsim los daws qhov "cov teeb meem hnav".
Qee tus neeg yuav xav paub, dab tsi yog silicon carbide? Qhov tseeb, nws yog ib qho khoom siv hluavtaws uas tsis muaj tshuaj lom neeg uas zoo li lub zog grey tsaus thiab xav tias nyuaj dua li cov pob zeb zoo tib yam, thib ob tsuas yog pob zeb diamond hauv qhov tawv nqaij. Cias muab tso, los ntawm kev ua cov khoom siv nyuaj no rau hauv cov duab uas haum rau cov phab ntsa sab hauv ntawm cov khoom siv, xws li daim ntawv lossis thaiv, thiab tom qab ntawd kho nws hauv qhov chaw hnav yooj yim, nws dhau los ua silicon carbide hnav-tiv taus hauv ob sab phlu. Nws txoj haujlwm yog ncaj qha heev: nws "thaiv" kev sib txhuam thiab kev cuam tshuam ntawm cov khoom siv rau cov khoom siv, ib yam li muab ib txheej ntawm "cov ris tsho hnav-tiv taus" rau ntawm phab ntsa sab hauv ntawm cov khoom siv.
Raws li "tus kws tshaj lij hnav-tiv taus" hauv kev lag luam, silicon carbide hauv ob sab phlu muaj ob qhov zoo. Ib qho yog nws muaj zog hnav tsis kam. Tau ntsib nrog kev yaig mus ntev ntawm cov ntaub ntawv nyuaj xws li thee, ore, thiab quartz xuab zeb, nws qhov chaw nyuaj rau khawb lossis tev tawm, ua rau nws hnav-tiv taus ntau dua li cov hlau thiab cov ceramics zoo tib yam. Qhov thib ob yog hloov mus rau qhov chaw hnyav. Hauv qee qhov xwm txheej, cov khoom siv tsis yog tsuas yog zom xwb tab sis kuj muaj qhov kub thiab txias (xws li hauv kev lag luam smelting) lossis corrosiveness (xws li hauv kev lag luam chemical). Cov ntaub ntawv hnav-tiv taus zoo ib yam tuaj yeem "ua tsis tiav", tab sis silicon carbide hauv ob sab phlu tuaj yeem tswj kev ruaj ntseg hauv ib puag ncig, ua rau nws nyuaj rau deform vim qhov kub thiab txias thiab corrode los ntawm acidic thiab alkaline cov ntaub ntawv.
Txawm li cas los xij, txhawm rau txhawm rau qhov no ' hnav-tiv thaiv tus tiv thaiv ' kom ua tau zoo, txheej txheem kev teeb tsa yog qhov tseem ceeb. Nws yuav tsum tau kho raws li qhov loj thiab cov duab ntawm cov cuab yeej, thiab tom qab ntawd tsau rau ntawm phab ntsa sab hauv ntawm cov khoom siv hauv kev ua haujlwm kom muaj kev sib haum xeeb ntawm ob - yog tias muaj qhov khoob, cov khoom siv yuav "xws li" thiab hnav cov khoom siv lub cev. Txawm hais tias thawj zaug peev hauv silicon carbide hauv ob sab phlu yog siab dua li ntawm cov hlau zoo tib yam, nyob rau lub sijhawm ntev, nws tuaj yeem txo qhov zaus ntawm cov khoom siv tu thiab hloov, thiab hloov pauv cov tuam txhab txuag nqi ntau.
Niaj hnub no, hauv kev lag luam hnav siab xws li mining, hluav taws xob, thiab cov khoom siv hauv tsev, silicon carbide hnav-tiv taus hauv ob sab phlu tau dhau los ua "kev xaiv" rau ntau lub lag luam. Nws tsis pom tseeb, tab sis nws ntsiag to tiv thaiv kev ruaj ntseg ntawm cov khoom siv ntau lawm nrog nws tus kheej "hardness", tso cai rau cov khoom siv yooj yim hnav "ua haujlwm" rau lub sijhawm ntev - qhov no yog tus nqi ntawm nws raws li kev lag luam "tus neeg saib xyuas hnav-tiv taus".
Post lub sij hawm: Sep-26-2025