"Imakethe yomhlaba wonke ye-graphite electrode yayinenani lamadola aseMelika ayizigidigidi ezingu-9.13 ngo-2018 futhi kulindeleke ukuthi ifinyelele amadola aseMelika ayizigidigidi ezingu-16.48 ngo-2025, ngesilinganiso sokukhula saminyaka yonke esingu-8.78% ngesikhathi sokubikezela."
Njengoba ukukhiqizwa kwensimbi kukhula kanye nokuthuthukiswa kwengqalasizinda yesimanje, isidingo sezinto zobunjiniyela nezokwakha siyaqhubeka nokukhula, okuyizinye zezinto ezibalulekile eziqhuba ukukhula kwemakethe yomhlaba wonke ye-graphite electrode.
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Ama-electrode e-graphite ayizinto zokushisa ezisetshenziswa kuma-arc omlilo kagesi ukwenza insimbi ngezingcezu, izimoto ezindala kanye neminye imishini. Ama-electrode ahlinzeka ngokushisa ensimbini eyisicucu ukuze ayincibilikise ukuze ikhiqize insimbi entsha. Ama-arc omlilo kagesi asetshenziswa kabanzi embonini yokukhiqiza insimbi ne-aluminium ngoba ashibhile ukuwakhiqiza. Ama-electrode e-graphite angahlanganiswa abe amasilinda ngoba ayingxenye yesembozo sesithando sikagesi. Lapho amandla kagesi anikezwayo edlula kula ma-electrode e-graphite, kwakheka i-arc kagesi enamandla, encibilikisa insimbi eyisicucu. Ngokusho kwesidingo sokushisa kanye nosayizi wesithando sikagesi, kungasetshenziswa ama-electrode anobukhulu obuhlukene. Ukuze kukhiqizwe ithani eli-1 lensimbi, kudingeka cishe ama-electrode e-graphite angu-3 kg. Ekwenziweni kwensimbi, i-graphite inamandla okubekezelela amazinga okushisa aphezulu kangaka, ngakho-ke izinga lokushisa lesihloko se-electrode lifinyelela cishe kuma-degree Celsius angu-3000. Izinaliti kanye ne-petroleum coke yizinto eziyinhloko zokusetshenziswa ezisetshenziswa ukwenza ama-electrode e-graphite. Kuthatha izinyanga eziyisithupha ukwenza ama-electrode e-graphite, bese kusetshenziswa izinqubo ezithile, okuhlanganisa ukubhaka nokubhaka kabusha, ukuguqula i-coke ibe yi-graphite. Ama-electrode e-graphite kulula ukuwakhiqiza kunama-electrode ethusi, futhi isivinini sokukhiqiza sishesha ngoba asidingi izinqubo ezengeziwe njengokugaya ngesandla.
Ukwakhiwa kwemakethe ye-graphite electrode, isidingo esikhulayo sensimbi embonini kawoyela negesi kanye nezimoto kulindeleke ukuthi sikhuthaze intuthuko yemakethe ye-graphite electrode. Ngaphezu kwama-50% ensimbi yomhlaba wonke ekhiqizwayo isetshenziswa embonini yokwakha nengqalasizinda. Umbiko uhlanganisa izinto ezibangela, izithiyo, amathuba, kanye nemikhuba yakamuva eye yaba negalelo ekukhuleni kwemakethe ngesikhathi sokuhlaziywa. Umbiko uhlaziya ngokuningiliziwe izinhlobo kanye nokusetshenziswa kokuhlukaniswa kwesifunda.
I-graphite electrode ingenye yama-conductor, futhi iyingxenye ebalulekile yenqubo yokwenza insimbi. Kule nqubo, insimbi eqoshiwe iyancibilikiswa esithandweni se-arc kagesi bese iphinda isetshenziswe. I-graphite electrode engaphakathi kwesithando empeleni yayincibilikisa insimbi. I-Graphite inokushisa okuphezulu, futhi imelana kakhulu nokushisa kanye nomthelela. Inokumelana okuphansi, okusho ukuthi ingaqhuba imisinga emikhulu edingekayo ukuze kuncibilikiswe insimbi. I-graphite electrode isetshenziswa kakhulu esithandweni se-arc kagesi (EAF) kanye nesithando se-ladle (LF) ekukhiqizeni insimbi, i-ferroalloy, i-silicon metal graphite electrode isetshenziswa esithandweni se-arc kagesi (EAF) kanye nesithando se-ladle (LF) ekukhiqizeni insimbi, ukukhiqizwa kwe-ferroalloy, ukukhiqizwa kwensimbi ye-silicon kanye nenqubo yokuncibilikisa.
Umbiko wemakethe ye-graphite electrode yomhlaba wonke uhlanganisa abadlali abaziwayo njengeGrafTech, iFangda Carbon China, iSGL Carbon Germany, iShowa Denko, iGraphite India, iHEG India, iTokai Carbon Japan, iNippon Carbon Japan, iSEC Carbon Japan, njll. I-American GrafTech, iFangda Carbon China kanye neGraphite India zinamandla okukhiqiza angamathani angu-454,000.
Isikhathi sokuthunyelwe: Mashi-04-2021