Mechanical carbon seal muaj keeb kwm ntev. Graphite yog ib qho isoform ntawm cov pa roj carbon. Xyoo 1971, Tebchaws Meskas tau kawm txog qhov ua tau zoo ntawm cov khoom siv graphite sealing, uas tau daws qhov xau ntawm atomic zog valve. Tom qab kev sib sib zog nqus ua tiav, cov graphite hloov tau dhau los ua cov khoom sib khi zoo heev, uas tau ua rau ntau yam carbon mechanical seals nrog cov txiaj ntsig ntawm cov khoom sib khi. Cov pa roj carbon mechanical seals no yog siv rau hauv kev lag luam chemical, roj av, hluav taws xob fais fab kev lag luam xws li kub kub kua nplaum.
Vim tias cov graphite saj zawg zog yog tsim los ntawm kev nthuav dav ntawm cov graphite tom qab qhov kub thiab txias, tus nqi ntawm intercalating tus neeg sawv cev tseem tshuav nyob rau hauv cov graphite saj zawg zog yog tsawg heev, tab sis tsis tag nrho, yog li lub hav zoov thiab muaj pes tsawg leeg ntawm intercalation tus neeg saib xyuas muaj kev cuam tshuam zoo rau qhov zoo. thiab kev ua haujlwm ntawm cov khoom.
