Habka wax-soo-saarka walxaha kaarboonku waa injineernimada nidaamka si adag loo xakameeyo, wax soo saarka elektiroonigga graphite, qalabka kaarboonka ee gaarka ah, kaarboon aluminium, agab cusub oo kaarboon ah oo heersare ah ayaa ka go'an isticmaalka alaabta ceeriin, qalabka, tignoolajiyada, maaraynta afar arrimood oo wax soo saar ah iyo lahaanshaha la xidhiidha. farsamada.
Maaddooyinka cayriin ayaa ah qodobbada muhiimka ah ee go'aamiya sifooyinka aasaasiga ah ee alaabta kaarboonka, iyo waxqabadka alaabta ceeriin ayaa go'aamisa waxqabadka alaabta kaarboonka ee la soo saaray. Wax soo saarka UHP iyo HP graphite electrodes, coke irbad tayo sare leh ayaa ah doorashada koowaad, laakiin sidoo kale tayada sare leh asphalt binder, asphalt wakiilka impregnating. Laakiin kaliya alaabta ceeriin oo tayo sare leh, qalab la'aanta, tignoolajiyada, arrimaha maaraynta iyo tignoolajiyada la xidhiidha, sidoo kale ma awoodaan inay soo saaraan UHP tayo sare leh, electrode graphite HP.
Maqaalkani waxa uu diiradda saarayaa sifooyinka coke cirbadaha tayada sare leh si loo qeexo qaar ka mid ah aragtida shakhsi ahaaneed, loogu talagalay soo-saareyaasha coke-ga irbadda, soo-saareyaasha korantada, machadyada cilmi-baarista sayniska si ay uga hadlaan.
In kasta oo wax-soo-saarka coke-ga irbadda ee Shiinaha uu ka dambeeyo kan shirkadaha shisheeye, si xawli ah ayuu u horumaray sannadihii u dambeeyay oo wuxuu bilaabay inuu qaab yeesho. Marka la eego wadarta mugga wax-soo-saarka, waxay asal ahaan dabooli kartaa baahida kookaha irbadda ee UHP iyo HP graphite electrodes oo ay soo saaraan shirkadaha kaarboonka ee gudaha. Si kastaba ha ahaatee, weli waxaa jira farqi gaar ah oo tayada coke irbadda marka la barbar dhigo shirkadaha shisheeye. Isbeddelka waxqabadka Dufcaddii wuxuu saameeyaa baahida loo qabo coke irbado tayo sare leh ee wax soo saarka cabbirka weyn ee UHP iyo HP graphite electrode, gaar ahaan ma jiro kookaha irbad wadajir ah oo tayo sare leh oo buuxin kara soosaarka wadajirka graphite electrode.
Shirkadaha kaarboonka ee ajnabiga ah ee soo saara qeexitaanno waaweyn oo UHP, HP graphite electrode inta badan waa doorashada koowaad ee tayada sare ee coke coke batroolka sida kookaha alaabta ceeriin ee ugu weyn, shirkadaha kaarboon ee Japan waxay sidoo kale isticmaalaan qaar ka mid ah coke irbado taxane ah oo dhuxul ah sida alaabta ceeriin, laakiin kaliya kuwan soo socda φ Tilmaamaha 600 mm ee wax soo saarka graphite electrode. Waqtigan xaadirka ah, kookaha irbadda ee Shiinaha ayaa inta badan ah kookaha irbado taxane ah. Wax soo saarka tayada sare leh ee cabbirka UHP graphite electrode ee shirkadaha kaarboon waxay inta badan ku tiirsan yihiin batroolka taxanaha batroolka laga keeno, gaar ahaan wax soo saarka wadajirka tayada sare leh ee la soo dhoofiyo Suishima saliidda saliidda ee Japanese Suishima iyo British HSP saliid taxane irbad coke sida kookaha alaabta ceeriin.
Waqtigan xaadirka ah, kookaha cirbadda ee ay soo saaraan shirkado kala duwan ayaa sida caadiga ah la barbar dhigaa tusmooyinka waxqabadka ganacsiga ee coke cirbadda shisheeye ee tusmooyinka waxqabadka caadiga ah, sida content ash, cufnaanta dhabta ah, maadada baaruudda, content nitrogen, qaybinta cabbirka qaybinta, iskudhafka ballaarinta kuleylka iyo wixii la mid ah. on. Si kastaba ha ahaatee, waxaa weli jira la'aanta darajooyin kala duwan oo kala soocidda coke irbadda marka la barbar dhigo dalalka shisheeye. Sidaa darteed, wax soo saarka coke irbadda si wadajir ah sidoo kale loogu talagalay "alaabta midaysan", ma muujin karto heerka tayada sare ee coke coke.
Marka lagu daro isbarbardhigga waxqabadka caadiga ah, shirkadaha kaarboonku waa inay sidoo kale fiiro gaar ah u yeeshaan sifada coke irbadda, sida kala-soocidda isku-dhafka fidinta kulaylka (CTE), xoogga qaybta, shahaadada anisotropy, xogta ballaarinta ee gobolka aan la xannibin iyo gobolka xannibay, iyo heerkulka u dhexeeya fidinta iyo foosha. Sababtoo ah kuwan guryaha kulaylka coke irbadu waa mid aad muhiim u ah in la xakameeyo habka graphitization ee habka wax soo saarka ee electrode graphite, dabcan, saamaynta guryaha kulaylka ee kookaha daamur sameeyey ka dib markii la dubay ee binder iyo asphalt wakiilka impregnating aan laga saaray.
1. Isbarbardhigga anisotropy ee coke irbadda
Ultra power graphite electrode soo saarka falanqaynta waxqabadka anisotropic degree waa qiyaasta irbad coke tayada alaabta ceeriin ama aan hab falanqayn muhiim ah, size ee heerka anisotropy, dabcan, sidoo kale waxay leeyihiin saamayn gaar ah habka wax soo saarka electrode, heerka anisotropy of koronto waxqabadka shoogga heer sare ah oo aad u kulul marka loo eego heerka anisotropy ee celceliska awoodda korantada yar ayaa wanaagsan.
Waqtigan xaadirka ah, wax soo saarka coke cirbadda dhuxusha ee Shiinaha ayaa aad uga weyn tan coke cirbadda batroolka. Sababtoo ah qiimaha alaabta ceeriin ee sarreeya iyo qiimaha shirkadaha kaarboon, way adagtahay in la isticmaalo 100% coke coke gudaha gudaha wax soo saarka UHP electrode, iyadoo lagu darayo qayb gaar ah oo ah kookaha batroolka la kariyey iyo budada graphite si loo soo saaro electrode. Sidaa darteed, way adag tahay in la qiimeeyo anisotropy ee coke cirbadda guriga.
2. Tilmaamaha toosan iyo mugga ee kookaha irbadda
Waxqabadka isbeddelka toosan iyo mugga ee kookaha cirbadda ayaa inta badan ka muuqda habka garaafyada ee ay soo saarto elektrodka. Iyada oo isbeddelka heerkulka, coke cirbadda mari doonaa toosan iyo volumetric ballaarinta iyo foosha inta lagu guda jiro geedi socodka geedi socodka garaafyada kululaynta, taas oo si toos ah u saameeyaa toosan iyo volumetric isbedelka billet duban electrode ee habka graphite. Tani isku mid maaha isticmaalka guryaha kala duwan ee kookaha cayriin, heerarka kala duwan ee coke cirbadaha ayaa isbeddelaya. Waxaa intaa dheer, kala duwanaanshaha heerkulka tooska ah iyo isbeddelka mugga ee darajooyinka kala duwan ee coke irbadda iyo kookaha batroolka ee calcined ayaa sidoo kale ka duwan. Kaliya adoo sifadan kookaha ceeriin ah ayaanu si fiican u xakameyn karnaa una wanaajin karnaa soosaarka isku xigxiga kiimikaad garaafka. Tani waxay si gaar ah uga muuqataa habka garaafaynta taxanaha ah.
Balaadhinta tooska ah waxay dhacdaa marka hore marka kookaha cirbadda saliiddu ay bilowdo inay kululaato, laakiin heerkulka bilowga foosha toosan wuxuu caadi ahaan ka dambeeyaa heerkulka ugu sarreeya ee calcination. Laga soo bilaabo 1525 ℃ ilaa 1725 ℃, balaadhinta tooska ah ayaa bilaabmaysa, iyo kala duwanaanta heerkulka qandho toosan oo dhan waa cidhiidhi, kaliya 200 ℃. Heerkulka heerkulka xariiqda oo dhan ee kookaha batroolka ee caadiga ah ee daahista ayaa aad uga weyn kan kookaha irbadda, iyo kookaha irbadda dhuxusha ayaa u dhaxaysa labada, wax yar ka weyn kookaha cirbadda saliidda. Natiijooyinka tijaabada ee Machadka Tijaabada Tiknoolajiyada Warshadaha ee Osaka ee Japan waxay muujinayaan in ka sii darnaanta waxqabadka kulaylka ee kookaha, ay ka weyn tahay kala duwanaanta heerkulka xariijinta, ilaa 500 ~ 600 ℃ heerkulka xariijinta xariijinta, iyo bilowga heerkulka hoos u dhaca khadka ayaa hooseeya. , at 1150 ~ 1200 ℃ bilaabay inuu dhaco line yaraynta, taas oo sidoo kale ah sifooyinka kookaha batroolka caadiga ah.
Sida ugu wanaagsan ee guryaha kulaylka iyo weynaanta anisotropy ee coke irbadda, way sii yaraanaysaa heerkulka heerkulka ee foosha toosan. Qaar ka mid ah irbad saliideed oo tayo sare leh oo keliya 100 ~ 150 ℃ heerkulka heerkulka toosan. Aad bay faa'iido u leedahay shirkadaha kaarboonka si ay u hagaan wax soo saarka habka garaafyada ka dib markii ay fahmaan sifooyinka fidinta tooska ah, foosha iyo dib u balaarinta kookaha alaabta ceeriin ee kala duwan, taas oo ka fogaan karta qaar ka mid ah alaabta qashinka tayada aan loo baahnayn ee ay keento isticmaalka habka khibradda dhaqameed.
Waqtiga boostada: Oct-08-2021