Ho paka graphite, joalo ka-e tiisang tšebetso e phahameng le ho tsamaisa mocheso, ho phetha karolo ea bohlokoa ho petrochemical, power, aerospace, le mafapha a mang. Bokhabane ba eona bo ikhethang-ho hanyetsa mocheso, ho tsitsa ha lik'hemik'hale, le{3}}mekhoa ea ho itlotsa ka botsona e etsa hore e be sebaka se loketseng ho fapana le lipakete tsa tšepe kapa polymer. Sengoliloeng sena se tla hlahloba melemo ea mantlha ea tekheniki ea ho paka graphite le tharollo e tloaelehileng ea ts'ebeliso.
I. Melemo ea Ts'ebetso ea Graphite Packing
graphite ea tlhaho ea tlhaho, ka ts'ebetso e khethehileng, e ka fetoloa hore e be graphite e atolositsoeng kapa graphite e feto-fetohang e nang le sebopeho se entsoeng ka lera. Boitsebiso bona bo boloka mocheso o pharaletseng oa likhato tse 200 ho isa ho tse 600 libakeng tse nang le oxidizing 'me ha li kenelle ho mecha ea litaba ea acidic le alkaline. Ha ho bapisoa le sephutheloana sa setso sa asbestos kapa polytetrafluoroethylene (PTFE), packing ea graphite e na le coefficient e tlase ea likhohlano (hoo e batlang e le 0.1-0.15), ka katleho e fokotsa ho apara holim'a libaka tsa ho tiisa lisebelisoa tsa mechine. Ho feta moo, conductivity ea eona ea mocheso e ka fihla ho 100-150 W / (m·K), e fana ka ho senya mocheso lits'ebetsong tse matla tsa ho tiisa le ho ntlafatsa haholo botšepehi ba tsamaiso.
II. Maemo a Tloaelehileng a Kopo le Litharollo
1. Sistimi ea Ho Tiisa{1}E Phahameng ea Khatello ea Balofo
Sebakeng sa li-valve tsa mantlha tsa mochini o futhumatsang o matla haholo,-maseli a mangata a lohiloeng a graphite a nang le terata ea nickel e matlafatsang a sebelisoa ho mamella khatello ea MPa e 45 le ho fumana ho lutla ha zero. Moralo oa-pele oa ho hatella oa 30%-50% oa khatello ea pele ea ho instola o lefa bakeng sa phomolo ea ho paka e bakoang ke ts'ebetso ea nako e telele.
2. Tšebeliso ea Lik'hemik'hale Pump Shaft Seal
Bakeng sa mecha ea litaba e senyang haholo (joalo ka concentrated sulfuric acid le hydrofluoric acid), carbon fiber-reinforced graphite packing e ntlafalitsoe, e eketsa matla a eona ho feta 12 MPa. Ha e kopantsoe le ente{3}}mofuta oa seal lubrication system, nako ea ho lokisa e ka atolosoa ka makhetlo a fetang a mararo ho feta a tharollo ea setso.
3. Thepa e Phahameng{1}}Mocheso oa Mocheso o Phahameng
Lits'ebetsong tsa polokelo ea mocheso oa letsoai le qhibilihisitsoeng, graphite e atolositsoeng le silicon carbide composite packing e tiisa ts'ebetso ea ho koala mocheso o fetang likhato tse 300 ha e ntse e fokotsa tahlehelo ea mocheso ka 15% -20% ka lebaka la graphite e sebetsang hantle haholo.
III. Mekhoa ea Ntlafatso ea Theknoloji
Lipatlisiso tsa hajoale li tsepamisitse maikutlo ho nano-mahlale a ntlafatso a nano, joalo ka tlatsetso ea molybdenum disulfide (MoS₂) kapa graphene, ho ntlafatsa ho tsoela pele ho ntlafatsa ho se sebetse ha li-filler le conductivity ea mocheso. Ho feta moo, khatiso ea 3D ea mekhoa ea ho bopa li-filler e hlophisitsoeng e ntse e le mohato oa teko, e nolofalletsang ho tiisa ka nepo tlas'a maemo a thata a ts'ebetso.
Litharollo tsa graphite filler, ka boqapi ba thepa le ntlafatso ea boenjiniere, li tsoela pele ho nts'etsapele nts'etsopele ea indasteri ho isa katlehong e phahameng, polokeho le bophelo bo bolelele. Ka tlhokahalo e ntseng e hola ea tlhahiso e tala, tekhenoloji e tlase-ea sebabole, e baballang tikoloho ea graphite le eona e tla fetoha sebaka sa bohlokoa sa katleho indastering.
