Ts'ebetso ea tlhahiso ea li-electrode tsa graphite tse matla haholo e tlameha ho fihlela litlhoko tse thata bakeng sa boima bo phahameng ba hona joale, khatello e phahameng ea mocheso, le thepa e thata ea fisik'hemik'hale. Litlhoko tsa eona tse ikhethang tsa mantlha li bontšoa mekhahlelong e mehlano ea bohlokoa: khetho ea thepa e tala, theknoloji ea ho bopa, lits'ebetso tsa ho kenya, kalafo ea graphitization, le machining e nepahetseng, joalo ka ha ho hlalositsoe ka tlase:
I. Khetho ea Lisebelisoa tse Tala: Ho Leka-lekanya Bohloeki bo Phahameng le Sebopeho se Ikhethang
Litlhoko tsa mantlha tsa thepa e tala
Coke ea nale e sebetsa e le thepa ea mantlha e tala ka lebaka la tekanyo ea eona e phahameng ea graphitization le coefficient e tlase ea katoloso ea mocheso (α₀-₀: 0.5–1.2×10⁻⁶/℃), e fihlelang litlhoko tse thata tsa botsitso ba mocheso tsa li-electrode tsa matla a phahameng haholo. Bokahare ba coke ea nale bo phahame haholo ho feta ba li-electrode tsa motlakase tse tloaelehileng, bo etsang karolo e fetang 60% ho li-electrode tsa motlakase tse phahameng haholo, athe li-electrode tsa motlakase tse tloaelehileng li sebelisa coke ea petroleum haholo-holo.
Ntlafatso ea Thepa e Thusang
Sekontiri se fetotsweng mocheso o phahameng se sebediswa e le sehokelo ka lebaka la tlhahiso e phahameng ya masala a khabone le dikahare tse fokolang tse feto-fetohang, e leng se eketsang bongata ba electrode (≥1.68 g/cm³) le matla a mechini (matla a ho tenyetseha ≥10.5 MPa). Ho feta moo, coke ya metallurgical e eketswa ho lokisa kabo ya boholo ba dikarolwana, ho ntlafatsa ho tsamaisa le ho hanyetsa ho thothomela ha mocheso.
II. Theknoloji ea ho Bopa: Ho Bopa ha Bobeli ho Hlōla Meeli ea Boholo
Ho thothomela le ho ntsha metsoako e kopaneng
Mekhoa ea setso e itšetlehile ka li-extruder tse kholo bakeng sa li-electrode tse bophara bo boholo, athe li-electrode tse matla haholo li sebelisa mokhoa oa bobeli oa ho bopa:
- Ho Bopa ka Sehloho: Sesebelisoa sa ho ntsha mokelikeli o sa lekanang se sebediswang ho hatella thepa e tswakilweng hore e be dikotwana tse tala pele.
- Ho Bopa ha Bobedi: Theknoloji ya ho bopa ka ho thothomela e tlosa diphoso tsa ka hare ho dikotwana tse tala, e ntlafatsa ho lekana ha bongata.
Mokhoa ona o nolofalletsa tlhahiso ea li-electrode tse bophara bo boholo (mohlala, ho fihlela ho 1,330 mm) ho sebelisoa lisebelisoa tse nyane, ho hlola meeli ea ts'ebetso ea setso.
Tšebeliso ea Lisebelisoa tsa Bohlale tsa Extrusion
Sesebelisoa sa ho ntša motlakase sa graphite electrode sa 60 MN se nang le litsamaiso tsa bolelele bo bohlale, ho kuta ka tsela e lumellanang, le ho fetisa thepa se ntlafatsa ho nepahala ha litlhophiso tsa bolelele ka 55% ha ho bapisoa le lits'ebetso tsa setso, se nolofalletsa tlhahiso e tsoelang pele e iketsang ka botlalo le ho ntlafatsa haholo bokhoni le botsitso ba sehlahisoa.
III. Ts'ebetso ea ho Enta: Ho Enta ka Khatello e Phahameng ho Ntlafatsa Botebo le Matla
Mekhahlelo e mengata ea ho baka ka ho kenngoa ha metsi
Li-electrode tse matla haholo li hloka lipotoloho tse 2-3 tsa ho kenya ka khatello e phahameng ho sebelisa molumo o fetotsoeng mocheso o mahareng e le moimana, 'me keketseho ea boima e laoloa ho 15%-18%. Ho kenya ka 'ngoe ho lateloa ke ho baka habeli (1,200–1,250℃) ho tlatsa li-pores, ho fihlela bongata ba ho qetela bo fetang 1.72 g/cm³ le matla a ho hatella a ≥26.8 MPa.
Kalafo e Ikhethileng ea Li-Connector Blanks
Likarolo tsa sehokelo li kenngoa ka khatello e phahameng (≥2 MPa) le ka makhetlo a mangata a ho baka ho netefatsa khanyetso ea ho kopana ea ≤0.15 mΩ, li fihlela litlhoko tsa phetiso ea motlakase o phahameng.
IV. Kalafo ea Graphitization: Phetoho ea Mocheso o Phahameng ka ho Fetisisa le Ntlafatso ea Tšebeliso e Botle ea Matla
Ts'ebetso ea Mocheso o Phahameng oa Acheson Furnace
Dithempereichara tsa graphitization di lokela ho fihla ho ≥2,800℃ ho fetola diathomo tsa khabone ho tloha tokisetsong e sa tsitsang ya mahlakore a mabedi ho ya sebopehong sa graphite se laetsweng mahlakore a mararo, ho fihlella resistivity e tlase (≤6.5 μΩ·m) le conductivity e phahameng ya mocheso. Mohlala, kgwebo e nngwe e ile ya kgutsufatsa potoloho ya graphitization ho ya ho dikgwedi tse hlano mme ya fokotsa tshebediso ya matla ka ho ntlafatsa diforomo tsa thepa ya insulation.
Mahlale a Kopaneng a ho Boloka Matla
Mahlale a ho boloka matla a maqhubu a feto-fetohang le mehlala e matla ea ts'ebetso ea matla e nolofalletsa ho beha leihlo meroalo ea lisebelisoa ka nako ea sebele le ho fetola mekhoa ea ts'ebetso ka boiketsetso, ho fokotsa tšebeliso ea matla a sehlopha sa pompo ka 30% le ho fokotsa litšenyehelo tsa ts'ebetso haholo.
V. Ho Sebetsa ka ho Nepahala: Taolo e Nepahetseng e Netefatsa Tshebetso
Litlhoko tsa ho nepahala ha mechini ea mechini
Mamello ea bophara ba li-electrode ke ±1.5%, mamello ea bolelele bohle ke ±0.5%, 'me ho nepahala ha khoele ea sehokelo ho fihla ho Sehlopha sa 4H/4h. Taolo ea jiometri e nepahetseng haholo e fihlelleha ka ho sebelisa litsamaiso tsa CNC tsa ho sebetsa le tsa ho lemoha inthaneteng, ho thibela ho feto-fetoha ha hona joale ho bakoang ke ho se tšoane ha li-electrode nakong ea ts'ebetso ea onto ea motlakase ea arc.
Ntlafatso ea Boleng ba Bokaholimo
Theknoloji ea ho ntša litšila e fokotsa litumello tsa ho sebetsa ka machining, e ntlafatsa tšebeliso ea thepa e tala. Meralo ea li-nozzle tse kobehileng e ntlafatsa ho khanna, e eketsa chai ea sehlahisoa ka 3% le ho ntlafatsa ho khanna ka 8%.
Nako ea poso: Phupu-21-2025