Ukusebenza kokuvalwa kokupakishwa kwe-graphite kuthintwa imingcele ehlukahlukene yokusebenza, ikakhulukazi okuhlanganisa:
• Ingcindezi Emaphakathi:{0}}Izindawo zokucindezela okuphezulu (isb., ezingaphezu kuka-10 MPa) zidinga{4}}isakhiwo sokupakisha esiyinhlanganisela yezendlalelo eziningi (isb, izingqimba ezishintshayo zegraphite ne-PTFE) ukuze kulinganiswe amandla okuvala kanye namandla okushintsha.
• Isivinini Somugqa: Uma isivinini somugqa weshafu ezungezayo sidlula i-10 m/s, ukuhanjiswa kwe-thermal yokupakisha kufanele kuthuthukiswe (isb, ngokungeza impushana yethusi ukuze kuthuthukiswe ukuchithwa kokushisa) ukuze kuvinjelwe ukushisa okweqile kwendawo kanye nokwehluleka kwe-carbonization.
• Izinga Lokushisa: Emazingeni okushisa aphansi (<-20°C), graphite may become more brittle, requiring flexibility treatment or composite with other materials (e.g., asbestos matrix) to improve its toughness.
• Ukuhambelana Okumaphakathi: Uma okuphakathi kuwuketshezi olukhipha i-oxidizing (isb., i-fuming sulfuric acid), i-graphite ene-anti{2}}oxidation treatment (isb, ukumiliswa ngosawoti wensimbi noma izinhlanganisela eziphilayo) kufanele kukhethwe.
Izimo zohlelo lokusebenza ezijwayelekile nezikhombisi-ndlela zokuthuthukisa
Ukupakishwa kwe-graphite kusetshenziswa kakhulu emikhakheni ye-petrochemical, amandla, ukwakhiwa kwemikhumbi, kanye nokukhiqiza imishini. Izinhlelo zokusebenza ezijwayelekile zifaka:
• Ama-valve seal: Asetshenziswa-emazingeni okushisa aphezulu,{1}}aphezulu{1}}amavalvu esitimu sokucindezela noma amavalvu okulawula uketshezi olubolayo, esikhundleni se-asbestos evamile noma amaphakethe enjoloba;
• Amaphampu: Asetshenziswa njengamaphampu e-shaft seal kumaphampu amaphakathi kanye namaphampu aphindaphindayo, alungele kakhulu ukudlulisa izixazululo ezine-asidi ne-alkaline;
• Ama-Agitator nama-reactors: Kuma seal-esivinini esikhulu se-agitator shaft, idizayini yebhokisi lokugxusha elihlanganisiwe lifinyelela ukuvala okunamandla nokulawula ukuvuza.
Ukuthuthukisa kwamanje kobuchwepheshe kugxile ekuthuthukisweni okuthuthukisiwe kokusebenza nokuthembeka ngokuguqulwa kwe-nanomaterial (njengokungeza i-molybdenum disulfide ukuze kuncishiswe ukushwiba), ukwakheka okusha (okufana namaringi okupakisha amadala ukuze kuthuthukiswe ukuzivumelanisa nezimo), nokuqapha okuhlakaniphile (okufana nezinzwa ezihlanganisiwe zokushisa/zengcindezi-yesimo sesikhathi sangempela).
Ukupakishwa kwe-graphite, ngenxa-yokuzigcoba,{1}}ukumelana kwayo nezinga lokushisa eliphezulu, kanye nokuzinza kwamakhemikhali, sekuyinto ebaluleke kakhulu emkhakheni wokuvala izimboni. Umgomo wayo wokusebenza uwukuthola ukuvaleka ngebhalansi eguquguqukayo phakathi kokonakala kwezinto kanye nokungqubuzana phakathi kobuso. Ukusebenza kwangempela kuncike ekufanisweni kwamapharamitha okusebenza kanye nokuba nengqondo komklamo wesakhiwo. Ngokuthuthuka kwesayensi yezinto zokwakha kanye nobuchwepheshe bonjiniyela, imingcele yokufakwa kwezicelo zama-graphite fillers izoqhubeka nokukhula, inikeze izixazululo ezingcono zokubeka uphawu ngaphansi kwemingcele ephezulu nezimo zokusebenza eziyinkimbinkimbi.
