Maelectrode eGraphite ndiwo chinhu chikuru chinoshandiswa muchoto chemagetsi che arc, nzira yekugadzira simbi apo marara kubva mumotokari dzekare kana midziyo yemagetsi anonyungudutswa kuti pagadzirwe simbi itsva.
Zvitofu zvemagetsi zvinodhura zvishoma kuvaka pane zvitofu zvemazuva ano zvinoputika, izvo zvinogadzira simbi kubva musimbi uye zvinofambiswa nemarasha ekukocha. Asi mutengo wekugadzira simbi wakakwira sezvo vachishandisa simbi dzakasara uye dzinofambiswa nemagetsi.
Maelectrode acho chikamu chechivharo chechoto uye anounganidzwa kuita makoramu. Magetsi anobva apinda nemaelectrode, oita arc yekupisa kwakanyanya inonyungudutsa simbi yakapwanyika. Maelectrode akasiyana zvakanyanya muhukuru asi anogona kusvika mamita 0.75 (mamita maviri nehafu) mudhayamita uye anosvika mamita 2.8 (mamita mapfumbamwe). Chikuru chacho chinorema kupfuura matani maviri.
Zvinotora kusvika 3 kg (6.6 lb) yema graphite electrodes kugadzira tani imwe chete yesimbi.
Musoro we electrode uchasvika 3,000 degrees Celsius, hafu yekupisa kwezuva. Ma electrode anogadzirwa ne graphite nekuti graphite chete ndiyo inogona kutsungirira kupisa kwakanyanya kudaro.
Choto chinozoiswa parutivi kuti chidururire simbi yakanyungudutswa mumabhaketi makuru anonzi madhishi. Madhishi acho anobva atakura simbi yakanyungudutswa kuenda kuchinhu chinogadzirwa simbi, icho chinogadzira zvigadzirwa zvitsva kubva muzvimedu zvakadzokororwa.
Magetsi anodiwa pakuita izvi akakwana kupa simba muguta rine vanhu 100,000. Kunyunguduka kwega kwega muchoto chemagetsi chemazuva ano kunowanzo tora maminetsi angangoita makumi mapfumbamwe uye kunoita matani zana nemakumi mashanu esimbi, inokwana mota dzinosvika zana nemakumi maviri neshanu.
Needle coke ndiyo chinhu chikuru chinoshandiswa muma electrodes ayo vagadziri vanoti anogona kutora kusvika mwedzi mitanhatu kugadzira nemaitiro anosanganisira kubheka nekubikazve kuti coke ishandurwe kuita graphite.
Kune needle coke yakagadzirwa nepetroleum uye needle coke yakagadzirwa nemarasha, uye imwe neimwe inogona kushandiswa kugadzira ma electrode e graphite. 'Pet coke' inobuda mukugadzirisa mafuta, nepo needle coke yakagadzirwa nemarasha inogadzirwa netara yemarasha inoonekwa panguva yekugadzira coke.
Pazasi pane vagadziri vepamusoro-soro vema electrode e graphite pasi rose vakarongwa zvichienderana nekukwanisa kwavo kugadzira muna 2016:
Zita reKambani Huwandu hweMigove yeHofisi yeHofisi
(,000 matani) YTD %
GrafTech US 191 Yakavanzika
pasi rose
Fangda Kabhoni China 165 +264
*SGL Carbon Germany 150 +64
*Showa Denko Japan 139 +98
KK
Graphite India India 98 +416
Ltd
HEG India 80 +562
Tokai Kabhoni Japan 64 +137
Co Ltd
Nippon Kabhoni Japan 30 +84
Co Ltd
SEC Kabhoni Japan 30 +98
*SGL Carbon muna Gumiguru 2016 yakati ichatengesa bhizinesi rayo re graphite electrode kuShowa Denko.
Manyuko: GrafTech International, UK Steel, Tokai Carbon Co Ltd
Nguva yekutumira: Chivabvu-21-2021