Hav nyob ntawd! Raws li tus neeg muag khoom ntawm graphite hlab, kuv feem ntau tau nug ib lo lus nug zoo nkauj: "Puas graphite raj siv tau rau hauv qhov chaw abrasive?" Zoo, cia peb khawb rau hauv lub ncauj lus no thiab nrhiav kom paub.
Ua ntej tshaj, cia peb nkag siab tias cov raj graphite yog dab tsi. Graphite yog ib daim ntawv ntawm cov pa roj carbon, thiab nws tau txais qee cov khoom zoo heev. Nws tau txais cov thermal conductivity siab, txhais tau tias nws tuaj yeem hloov cov cua sov zoo heev. Nws tseem muaj tshuaj lom neeg ruaj khov, uas ua rau nws tiv taus ntau yam tshuaj sib txawv. Thiab nws tau txais lubricity zoo, uas txhais tau tias nws tuaj yeem txo kev sib txhuam. Cov khoom no ua rau cov raj graphite muaj txiaj ntsig hauv ntau qhov kev lag luam, los ntawm metallurgy mus rau electronics.
Tam sim no, cia peb tham txog abrasive ib puag ncig. Ib puag ncig abrasive yog ib qho uas muaj ntau qhov hnav thiab tsim kua muag tshwm sim. Qhov no tuaj yeem yog vim muaj tej yam xws li siab - cov khoom nrawm, txav qhov chaw sib tsoo, lossis muaj cov ntaub ntawv ntxhib. Xav txog lub hauv paus uas cov hlau molten tau nchuav thiab muaj txhua yam ntawm cov khoom ya ncig, lossis kev ua haujlwm tsuas yog qhov chaw uas pob zeb thiab cov pob zeb tau raug crushed thiab ua tiav.
Yog li, cov graphite puas tuaj yeem tuav tau hauv cov xwm txheej nyuaj no? Cov lus teb yog, nws nyob ntawm. Graphite muaj qhov nyuaj siab ntawm Mohs nplai, tab sis nws kuj yog nkig me ntsis. Qee zaum, graphite raj tuaj yeem ua haujlwm zoo hauv qhov chaw abrasive.
Ib qho ntawm qhov tseem ceeb yog hom kev puas tsuaj. Yog tias qhov abrasion feem ntau yog vim cov khoom zoo, cov hlab graphite feem ntau tuaj yeem ua rau nws. Lubricity ntawm graphite pab txo cov kev sib txhuam ntawm cov raj thiab cov khoom, uas tuaj yeem tiv thaiv kev hnav ntau dhau. Piv txwv li, hauv qee cov tshuaj ua cov nroj tsuag uas muaj cov hmoov zoo - zoo li cov khoom ntws los ntawm cov kav dej, cov raj graphite tuaj yeem yog qhov kev xaiv zoo.
Txawm li cas los xij, yog tias qhov tawg yog tshwm sim los ntawm cov khoom loj, cov khoom tawv tawv lossis siab - cuam tshuam, cov hlab graphite yuav ntsib qee qhov teeb meem. Lub brittleness ntawm graphite txhais tau hais tias nws tuaj yeem tawg lossis tawg hauv qhov cuam tshuam hnyav. Hauv kev lag luam mining uas cov pob zeb loj tau tsiv mus nyob ib puag ncig, lub raj graphite yuav tsis yog qhov kev xaiv zoo tshaj plaws vim tias nws tuaj yeem puas tau yooj yim.
Lwm qhov yuav tsum tau xav txog yog qhov tsim thiab zoo ntawm graphite raj. Lub qhov dej zoo - ua graphite raj nrog kev txhim kho kom zoo thiab ua kom tiav qhov zoo tuaj yeem ua tau zoo dua hauv qhov chaw abrasive. Ntawm peb lub tuam txhab, peb saib xyuas zoo hauv kev tsim peb cov hlab graphite. Peb siv siab - cov ntaub ntawv graphite zoo thiab cov txheej txheem ntau lawm los xyuas kom meej tias peb cov raj muaj cov khoom zoo tshaj plaws.
Cia wb mus saib qee qhov tiag - daim ntawv thov hauv ntiaj teb. Hauv cov hlau - smelting kev lag luam, graphite raj feem ntau siv rau ntau yam txheej txheem. Lawv tuaj yeem siv rau cov khoom xws li thauj cov hlau molten lossis ua ib feem ntawm cov cua sov. Hauv kev lag luam no, muaj cov khoom abrasive tam sim no nyob rau hauv daim ntawv ntawm slag thiab hlau oxides. Peb cov raj graphite tau siv ntau lub hauv paus, thiab lawv tau pom tias muaj kev ua tau zoo hauv kev tuav cov tshuaj abrasive. Koj tuaj yeem tshawb xyuas peb cov Foundry Graphite Crucible thiab Foundry Graphite Crucibles uas ua haujlwm nrog peb cov hlab graphite hauv cov hlau abrasive - smelting ib puag ncig.
Hauv iav - ua kev lag luam, graphite raj kuj siv. Cov iav - ua txheej txheem muaj qhov kub thiab txias thiab muaj cov iav abrasive. Peb cov hlab graphite tuaj yeem tiv taus cov cua sov thiab kev puas tsuaj rau qee qhov, tso cai rau kev ua haujlwm du thiab ua haujlwm tau zoo.
Tab sis nws tsis yog hais txog kev lag luam xwb. Cov xwm txheej tshwj xeeb hauv ib puag ncig kuj tseem ceeb. Piv txwv li, qhov kub thiab txias, siab, thiab tus nqi ntws ntawm cov khoom dhau los ntawm lub raj tag nrho ua lub luag haujlwm. Cov kub kub qee zaum tuaj yeem ua rau graphite nkig ntau dua, uas tuaj yeem cuam tshuam nws qhov kev ua tau zoo hauv ib puag ncig abrasive.
Yog tias koj tab tom txiav txim siab siv cov raj graphite hauv ib puag ncig abrasive, nws yog ib qho tseem ceeb uas yuav tau ua qhov kev ntsuam xyuas zoo. Koj yuav tsum nkag siab qhov xwm txheej ntawm kev puas tsuaj, kev ua haujlwm, thiab cov kev xav tau ntawm koj daim ntawv thov tshwj xeeb. Peb nyob ntawm no los pab koj nrog qhov ntawd. Peb pab neeg ntawm cov kws tshaj lij tuaj yeem ua haujlwm nrog koj los txheeb xyuas koj qhov xwm txheej thiab pom zoo rau qhov zoo tshaj plaws graphite raj tov rau koj.
Peb kuj muab lwm cov khoom siv graphite uas tej zaum yuav muaj txiaj ntsig zoo hauv qhov chaw abrasive. Piv txwv li, peb Graphite Stopper yog tsim los ua haujlwm nyob rau hauv siab - kub thiab abrasive tej yam kev mob nyob rau hauv cov hlau - smelting kev lag luam.
Hauv kev xaus, graphite raj tuaj yeem siv rau hauv qhov chaw abrasive, tab sis nws yog rooj plaub - los ntawm - rooj plaub. Nrog rau txoj kev tsim, zoo, thiab kev nkag siab ntawm ib puag ncig, lawv tuaj yeem muab kev ua tau zoo. Yog tias koj xav tau cov raj graphite lossis xav paub ntxiv txog yuav ua li cas lawv tuaj yeem ua haujlwm hauv koj qhov chaw tshwj xeeb abrasive, tsis txhob yig mus cuag. Peb ib txwm zoo siab los tham thiab sib tham txog koj cov kev xav tau.
Cov ntaub ntawv:
"Graphite: Properties and Applications" - Phau ntawv qhia txog cov khoom siv graphite
Kev lag luam qhia txog kev siv cov khoom siv graphite hauv ntau qhov chaw