Khoom Taw Qhia
Cov Tar Suab Tar, tseem hu ua cov suab raj zeb, yog hom khoom siv dag ntxias uas hais txog qhov seem tshuav tom qab distillation thiab kev ua cov tar thee kom tshem tawm cov kua ntau. Nws feem ntau yog cov kua viscous, semi-zog lossis cov xim thiab ci, nrog cov ntsiab lus carbon txog li ntawm 42% thiab cov ntsiab lus hydrogen ntawm kwv yees li 4% ~ 5%.
Lub hauv paus tseem ceeb ntawm cov thee sar pitch yog polycyclic thiab polycyclic aromatic hydrocarbons thiab lawv cov derivatives. Qhov tshwj xeeb sib xyaw ua ke yog qhov nyuaj heev, thiab qhov sib txawv ntawm cov cuab yeej nyoos ntau yam thiab ua tau los sib txawv hauv kev sib xyaw. Tus txheej txheem tam sim no tsuas yog cais cov qhov sib txawv raws li qhov muag ntub dej ntawm qhov kub thiab txias.
Courl Sar Liab muaj cov yam ntxwv hauv qab no:
- Tsawg-kub qhov kub thiab ua kom yooj yim thaum ua kom sov.
- Zoo adhesion nrog ntxhia agerregates.
- Cov kev nyab xeeb huab cua tsis zoo, thiab nyob rau hauv lub sijhawm ntev ntev, thiab lwm yam, ua rau nws yooj yim rau hnub nyoog thiab dhau los ua tus xeeb ntxwv.
- Kev Txom nyem tsis zoo, nquag mus tawg vim yog kev ntxhov siab hauv kev ntxhov siab.
- Muaj phenol, anthracene, roj naphthalene, thiab lwm yam, yog li nws muaj cov tshuaj tiv thaiv corrosion.
Raws li cov ntsiab lus sib txawv, ntim cov pob zeb sib cais tuaj yeem faib ua peb pawg, thiab cov qib qis, qib qis: qib 2 thiab qib siab suav nrog:
- Siv raws li roj: vim nws cov ntsiab lus zoo, nws yog feem ntau sib xyaw nrog cov roj hnyav lossis ua rau muaj cov roj hnyav.
- Ntau lawm cov roj carbon electrodes: Theem Pallium graphitization yog qhov tseem ceeb, thiab lawv tuaj yeem raug siv los ua cov khoom siv hluav taws xob rau kev tsim khoom thiab cov chaw ntub dej.
- Pleev Ntau Lawm: Tom qab ua tiav, nws tuaj yeem siv ua cov dej tsis muaj dej rau cov tsev thiab kav dej, xws li epoxy thee tar txheej.
- Siv rau txoj kev kev tsim kho thiab cov ntaub ntawv hauv tsev: Feem ntau tov nrog roj av asphalt, kev ua tau zoo dua li siv cov tshuaj sib xyaw ntau dua thiab yuav tsum tau kho kom tsis muaj teeb meem ua ntej siv.
- Ua cov khoom lag luam muaj txiaj ntsig zoo xws li Koob Coke koob, ua kom cov pa roj carbon, carbon fiber ntau, thiab lwm yam.
Thaum siv daim av pob zeb ua kom tsis txhob raug them rau tib neeg kev noj qab haus huv, thiab kev tiv thaiv ib puag ncig kom txo cov pa phem rau ib puag ncig thiab siv.
