Cov kev cai tshwj xeeb rau cov txheej txheem tsim cov electrodes graphite ultra-high power yog dab tsi?

Cov txheej txheem tsim cov electrodes graphite muaj zog heev yuav tsum ua tau raws li cov kev cai nruj rau qhov ceev tam sim no, kev ntxhov siab thermal siab, thiab cov khoom siv physicochemical nruj. Nws cov kev cai tshwj xeeb tseem ceeb tau pom hauv tsib theem tseem ceeb: kev xaiv cov khoom siv raw, kev siv tshuab molding, cov txheej txheem impregnation, kev kho graphitization, thiab kev ua haujlwm precision, raws li qhia hauv qab no:

I. Kev Xaiv Khoom Siv Raw: Kev Sib Npaug Siab Purity thiab Cov Qauv Tshwj Xeeb

Cov Khoom Siv Raw Tseem Ceeb
Cov tshuaj coke koob yog cov khoom siv tseem ceeb vim nws qib graphitization siab thiab coefficient qis ntawm thermal expansion (α₀-₀: 0.5–1.2 × 10⁻⁶/℃), ua tau raws li qhov xav tau thermal stability ntawm cov electrodes ultra-high power. Cov ntsiab lus ntawm cov tshuaj coke koob yog siab dua li ntawm cov electrodes fais fab ib txwm, suav txog ntau dua 60% hauv cov electrodes ultra-high power, thaum cov electrodes fais fab ib txwm siv cov roj av coke feem ntau.

Kev Txhim Kho Cov Khoom Siv Pabcuam
Cov suab hloov kho kub siab siv ua cov khoom sib txuas vim nws cov pa roj carbon ntau thiab cov ntsiab lus tsawg volatile, ua kom lub electrode qhov ceev ntawm cov khoom loj (≥1.68 g / cm³) thiab lub zog kho tshuab (lub zog flexural ≥10.5 MPa). Tsis tas li ntawd, cov coke metallurgical tau ntxiv rau hauv los kho qhov loj me ntawm cov khoom me me, ua kom zoo dua qhov conductivity thiab thermal shock tiv taus.

II. Kev Siv Tshuab Moulding: Kev Siv Tshuab Moulding Thib Ob Kov Yeej Qhov Txwv Loj

Kev co-Extrusion Composite Molding
Cov txheej txheem ib txwm siv cov extruders loj rau cov electrodes loj, thaum cov electrodes muaj zog heev siv txoj kev molding thib ob:

• Kev Tsim Kho Thawj Zaug: Lub tshuab extruder uas muaj qhov sib txawv ntawm qhov sib txawv yog siv los nias cov khoom sib xyaw ua ntej rau hauv cov compacts ntsuab.
• Kev Moulding Thib Ob: Kev siv tshuab vibration molding ntxiv tshem tawm cov qhov tsis zoo sab hauv ntawm cov compacts ntsuab, txhim kho qhov ceev sib xws.
  Txoj kev no ua rau muaj peev xwm tsim cov electrodes loj (piv txwv li, txog li 1,330 hli) siv cov khoom siv me dua, kov yeej cov kev txwv ntawm cov txheej txheem ib txwm muaj.

Daim Ntawv Thov ntawm Cov Khoom Siv Extrusion Txawj Ntse
Lub tshuab extruder graphite electrode 60 MN uas muaj kev teeb tsa qhov ntev ntse, kev txiav sib dhos, thiab cov tshuab xa khoom txhim kho qhov tseeb ntawm qhov ntev los ntawm 55% piv rau cov txheej txheem ib txwm muaj, ua rau muaj kev tsim khoom tsis siv neeg tag nrho thiab txhim kho kev ua haujlwm zoo thiab kev sib xws ntawm cov khoom.

III. Cov Txheej Txheem Impregnation: Kev Impregnation Siab Siab Ua Rau Kom Qhov Ceev Thiab Lub Zog Zoo Dua

Ntau Lub Voj Voog Impregnation-Baking
Cov electrodes muaj zog heev yuav tsum tau siv 2–3 lub voj voog siab siab siv lub suab hloov kho qhov kub nruab nrab ua lub impregnant, nrog rau qhov hnyav nce tswj ntawm 15%–18%. Txhua qhov impregnation raug ua raws li kev ci thib ob (1,200–1,250 ℃) kom puv cov qhov hws, ua tiav qhov kawg ntawm qhov ceev tshaj 1.72 g/cm³ thiab lub zog compressive ntawm ≥26.8 MPa.

Kev Kho Mob Tshwj Xeeb ntawm Cov Khoom Txuas Blanks
Cov ntu txuas raug kev sib xyaw ua ke nrog lub zog siab (≥2 MPa) thiab ntau lub voj voog ci kom ntseeg tau tias qhov tiv taus kev sib cuag ntawm ≤0.15 mΩ, ua tau raws li qhov yuav tsum tau ua ntawm kev xa hluav taws xob siab.

IV. Kev Kho Mob Graphitization: Kev Hloov Kub Siab Heev thiab Kev Txhim Kho Zog

Kev Ua Haujlwm Kub Heev ntawm Acheson Furnace
Qhov kub ntawm kev ua graphitization yuav tsum ncav cuag ≥2,800 ℃ kom hloov cov pa roj carbon los ntawm kev teeb tsa ob-seem mus rau hauv cov qauv graphite peb-seem, ua tiav qhov tsis kam tiv taus qis (≤6.5 μΩ·m) thiab kev ua kom sov siab. Piv txwv li, ib lub tuam txhab tau luv lub voj voog graphitization mus rau tsib lub hlis thiab txo kev siv hluav taws xob los ntawm kev ua kom zoo dua cov khoom siv rwb thaiv tsev.

Cov Txuj Ci Txuag Hluav Taws Xob Ua Ke
Cov thev naus laus zis txuag hluav taws xob uas hloov pauv tau zaus thiab cov qauv txuag hluav taws xob dynamic ua rau muaj kev saib xyuas lub sijhawm tiag tiag ntawm cov khoom siv thiab hloov pauv hom kev ua haujlwm tsis siv neeg, txo cov twj tso kua mis siv hluav taws xob los ntawm 30% thiab txo cov nqi ua haujlwm ntau heev.

V. Kev Ua Haujlwm Zoo: Kev Tswj Xyuas Kom Zoo Ua Kom Muaj Kev Ua Haujlwm Zoo

Cov Kev Cai Rau Kev Ua Kom Raug ntawm Kev Siv Tshuab
Qhov kam rau ntawm lub electrode txoj kab uas hla yog ±1.5%, qhov ntev tag nrho yog ±0.5%, thiab qhov tseeb ntawm cov xov txuas mus txog Chav Kawm 4H/4h. Kev tswj hwm geometric siab raug ua tiav los ntawm kev siv CNC machining thiab online detection systems, tiv thaiv kev hloov pauv tam sim no los ntawm electrode eccentricity thaum lub sijhawm ua haujlwm ntawm lub cub hluav taws xob arc.

Kev Txhim Kho Qhov Zoo Ntawm Qhov Chaw
Kev siv tshuab extrusion uas tsis muaj khib nyiab txo qhov kev siv tshuab, ua kom siv cov khoom siv raw tau zoo dua. Cov qauv nozzle nkhaus ua kom muaj kev sib kis tau zoo dua, ua rau cov khoom tsim tau ntau dua 3% thiab ua kom muaj kev sib kis tau zoo dua 8%.