Inkqubo yokuvelisa ii-electrode ze-graphite ezinamandla aphezulu kakhulu kufuneka ihlangabezane neemfuno ezingqongqo zoxinano oluphezulu lwamandla, uxinzelelo oluphezulu lobushushu, kunye neempawu eziqinileyo ze-physicochemical. Iimfuno zayo ezikhethekileyo eziphambili zibonakaliswa kwizigaba ezihlanu eziphambili: ukukhethwa kwezinto eziluhlaza, iteknoloji yokubumba, iinkqubo zokufaka, unyango lwe-graphitization, kunye nomatshini wokulungisa ngokuchanekileyo, njengoko kuchaziwe ngezantsi:
I. Ukukhethwa kwezinto eziluhlaza: Ukulinganisela ubunyulu obuphezulu kunye nolwakhiwo olukhethekileyo
Iimfuno eziphambili zezinto eziluhlaza
I-Needle coke isebenza njengesixhobo esiphambili ngenxa yeqondo layo eliphezulu le-graphitization kunye ne-coefficient ephantsi yokwandiswa kobushushu (α₀-₀: 0.5–1.2×10⁻⁶/℃), ehlangabezana neemfuno eziqinileyo zozinzo lobushushu lwee-electrodes zamandla aphezulu kakhulu. Umxholo we-needle coke uphezulu kakhulu kunowokwii-electrodes zamandla eziqhelekileyo, ubalwa ngaphezulu kwe-60% kwii-electrodes zamandla aphezulu kakhulu, ngelixa ii-electrodes zamandla eziqhelekileyo zisebenzisa i-petroleum coke.
Ukuphuculwa kwezixhobo ezincedisayo
I-pitch eguqulweyo yobushushu obuphezulu isetyenziswa njenge-binder ngenxa ye-carbon residue yayo ephezulu kunye nomxholo ophantsi we-volatible, ophucula uxinano olukhulu lwe-electrode (≥1.68 g/cm³) kunye namandla oomatshini (amandla e-flexural ≥10.5 MPa). Ukongeza, i-coke ye-metallurgical yongezwa ukulungisa usasazo lobungakanani be-particle, ukuphucula i-conductivity kunye nokumelana nobushushu.
II. Itekhnoloji yokubumba: Ukubumba kwesibini kuyoyisa imida yobukhulu
Ukubumba iComposite yokungcangcazela
Iinkqubo zemveli zixhomekeke kwii-extruders ezinkulu kwii-electrodes ezinkulu, ngelixa ii-electrodes zamandla aphezulu kakhulu zisebenzisa indlela yesibini yokubumba:
- Ukubumba Okuphambili: I-extruder ejikelezayo eqhubekayo engalinganiyo isetyenziselwa ukucinezela izinto ezixutyiweyo kuqala zibe zii-compacts eziluhlaza.
- Ukubumba Kwesibini: Itekhnoloji yokubumba ngokungcangcazela isusa ngakumbi iziphene zangaphakathi kwi-compacts eziluhlaza, iphucula ukufana koxinano.
Le ndlela ivumela ukuveliswa kwee-electrode ezinkulu (umz., ukuya kuthi ga kwi-1,330 mm) kusetyenziswa izixhobo ezincinci, ukoyisa imida yenkqubo yesiqhelo.
Ukusetyenziswa kweZixhobo zoBuchule bokuNgcakaza
I-extruder ye-graphite electrode ye-60 MN exhotyiswe ngokuseta ubude obukrelekrele, ukucheba okuhambelanayo, kunye neenkqubo zokuhambisa ziphucula ukuchaneka kokuseta ubude nge-55% xa kuthelekiswa neenkqubo zemveli, okuvumela imveliso eqhubekayo ezenzekelayo ngokupheleleyo kwaye iphucula kakhulu ukusebenza kakuhle kunye nokuhambelana kwemveliso.
III. Inkqubo yokufunxa: Ukufunxa okunoxinzelelo oluphezulu kuphucula uxinano kunye namandla
Imijikelo emininzi yokubhaka nge-Impregnation
Ii-electrode ezinamandla aphezulu kakhulu zifuna imijikelo yokufunxa uxinzelelo oluphezulu emi-2-3 kusetyenziswa i-pitch eguquliweyo yobushushu obuphakathi njenge-impregnant, apho ukutyeba kulawulwa kwi-15%-18%. Ukufunxa ngakunye kulandelwa kukubhaka okwesibini (1,200–1,250℃) ukuzalisa ii-pores, ukufikelela kubuninzi bokugqibela obungaphezulu kwe-1.72 g/cm³ kunye namandla okucinezela angama-≥26.8 MPa.
Unyango oluKhethekileyo lweeConnector Blanks
Amacandelo okudibanisa afakwa kwi-impregnation enoxinzelelo oluphezulu (≥2 MPa) kunye nemijikelo yokubhaka emininzi ukuqinisekisa ukumelana nokudibana kwe-≤0.15 mΩ, ukuhlangabezana neemfuno zothumelo oluphezulu.
IV. Unyango lweGraphitization: Ukuguqulwa kobushushu obuphezulu kakhulu kunye nokuphucula ukusebenza kakuhle kwamandla
Ukucubungula i-Acheson Furnace kwi-Ultra-High Temperature
Amaqondo obushushu e-graphitization kufuneka afikelele kwi-≥2,800℃ ukuguqula ii-athomu zekhabhoni ukusuka kwilungiselelo elidibeneyo elinamacala amabini ukuya kwisakhiwo se-graphite esicwangcisiweyo esinamacala amathathu, ukufikelela kwi-resistivity ephantsi (≤6.5 μΩ·m) kunye ne-thermal conductivity ephezulu. Umzekelo, elinye ishishini lanciphisa umjikelo we-graphitization ukuya kwiinyanga ezintlanu kwaye lanciphisa ukusetyenziswa kwamandla ngokuphucula iifomyula zezinto zokugquma.
Iiteknoloji eziHlanganisiweyo zoKonga uMandla
Iiteknoloji zokonga amandla eziguquguqukayo kunye neemodeli zokusebenzisa amandla ngendlela eguquguqukayo zivumela ukujonga imithwalo yezixhobo ngexesha langempela kunye nokutshintsha ngokuzenzekelayo iindlela zokusebenza, kunciphisa ukusetyenziswa kwamandla eqela leempompo ngama-30% kwaye kunciphisa kakhulu iindleko zokusebenza.
V. Umatshini Ochanekileyo: Ulawulo Oluchanekileyo Luqinisekisa Ukusebenza Komsebenzi
Iimfuneko zokuChaneka koMatshini woMatshini
Ukunyamezelana kobubanzi be-electrode yi-±1.5%, ukunyamezelana kobude bubonke yi-±0.5%, kwaye ukuchaneka komsonto wesixhumi kufikelela kwiKlasi ye-4H/4h. Ulawulo lwejometri oluchanekileyo kakhulu lufezekiswa kusetyenziswa iinkqubo zomatshini we-CNC kunye neenkqubo zokufumanisa ezikwi-intanethi, ukuthintela ukuguquguquka kwamandla angoku okubangelwa kukungangqinelani kwe-electrode ngexesha lokusebenza kwesithando somlilo se-arc sombane.
Ukuphuculwa koMgangatho woMphezulu
Itekhnoloji yokukhupha ngaphandle kwenkunkuma inciphisa izibonelelo zoomatshini, iphucula ukusetyenziswa kwezinto eziluhlaza. Uyilo lwe-nozzle olugobileyo luphucula ukuhanjiswa kwemveliso, lunyusa isivuno semveliso nge-3% kwaye luphucula ukuhanjiswa kwemveliso nge-8%.
Ixesha leposi: Julayi-21-2025