Cov khoom zoo ntawm cov graphite nthuav dav yog dab tsi?

Cov khoom zoo ntawm cov graphite nthuav dav yog dab tsi?

1, Kev ua haujlwm txhua yam:
1.1Kev sib zog thiab kev ywj pheej siab: rau cov khoom graphite nthuav dav, tseem muaj ntau qhov chaw me me uas kaw tau uas tuaj yeem nruj raws li qhov kev ua ntawm lub zog sab nraud. Tib lub sijhawm, lawv muaj kev ywj pheej vim yog qhov nro ntawm huab cua hauv qhov chaw me me.
1.2Kev ywj pheej: qhov nyuaj yog qis heev. Nws tuaj yeem txiav nrog cov cuab yeej ib txwm, thiab tuaj yeem raug mob thiab khoov arbitrarily;
2, Lub cev thiab tshuaj lom neeg ua haujlwm:
2.1 Kev Huv Si: cov pa roj carbon ruaj khov yog li 98%, lossis ntau dua 99%, uas txaus kom ua tau raws li qhov yuav tsum tau ua ntawmsiab-puritycov ntsaws ruaj ruaj hauv lub zog thiab lwm yam kev lag luam;
2. Qhov Ceev: tusqhov ceev ntawm cov khoom lojntawm cov flake graphite yog 1.08g / cm3, qhov ceev ntawm cov graphite nthuav dav yog 0.002 ~ 0.005g / cm3, thiab cov khoom ceev yog 0.8 ~ 1.8g / cm3. Yog li ntawd, cov khoom siv graphite nthuav dav yog lub teeb thiab yas;
3. Kev tiv thaiv kub: raws li kev xav, cov graphite nthuav dav tuaj yeem tiv taus - 200 ℃ txog 3000 ℃. Ua ib lub foob pob, nws tuaj yeem siv tau zoo ntawm - 200 ℃ ~ 800 ℃. Nws muaj cov haujlwm zoo heev ntawm tsis muaj embrittlement, tsis muaj kev laus ntawm qhov kub qis, tsis muaj softening, tsis muaj deformation thiab tsis muaj decomposition ntawm qhov kub siab;
4. Kev tiv thaiv xeb: nws muaj tshuaj lom neeg tub nkeeg. Ntxiv rau qee qhov kub tshwj xeeb ntawm cov oxidants muaj zog xws li aqua regia, nitric acid, sulfuric acid thiab halogen, nws tuaj yeem siv rau feem ntau cov xov xwm xws li kua qaub, alkali, ntsev daws, dej hiav txwv, pa thiab cov kuab tshuaj organic;
5. Kev ua tau zoo heev ntawm cov thermal conductivitythiab cov coefficient thermal expansion me me. Nws cov kev ntsuas yog ze rau tib qho kev txiav txim ntawm qhov loj ntawm cov ntaub ntawv ob ntu ntawm cov khoom siv sealing dav dav. Nws kuj tseem tuaj yeem kaw zoo nyob rau hauv cov xwm txheej ua haujlwm ntawm qhov kub siab, cryogenic thiab hloov pauv kub ntse;
6. Kev tiv thaiv hluav taws xobe: raug rau cov teeb neutron γ Ray α Ray β X-ray irradiation ntev yam tsis muaj kev hloov pauv pom tseeb;
7. Kev tsis nkag: zoo rau roj thiab kua. Vim yog lub zog loj ntawm cov graphite nthuav dav, nws yooj yim los tsim cov roj nyias nyias lossis cov kua kom cuam tshuam qhov nkag mus ntawm cov khoom nruab nrab;
8. Kev siv lubrication tus kheej: cov graphite uas nthuav dav tseem tswj tau cov qauv txheej hexagonal. Nyob rau hauv qhov kev ua ntawm lub zog sab nraud, cov txheej txheej dav hlau yooj yim rau kev swb thiab tus kheej lubrication tshwm sim, uas tuaj yeem tiv thaiv kev hnav ntawm lub qhov lossis lub valve pas nrig.