Njira yopangira ma electrode a graphite ndi njira yovuta komanso yosamala kwambiri yokhala ndi masitepe angapo ofunikira, iliyonse ikukhudza kwambiri ubwino ndi magwiridwe antchito a chinthu chomaliza. Nazi masitepe ofunikira pakupanga ma electrode a graphite:
Kusankha Zinthu Zopangira ndi Kusamalira Zinthu Zopangira:
- Kusankha Zinthu Zopangira: Zipangizo zazikulu zopangira ma electrode a graphite ndi monga petroleum coke, needle coke, ndi coal tar pitch. Petroleum coke, yomwe imachokera ku coking ya mafuta otsala ndi phula, imakhala ndi phulusa lochepa; needle coke, yomwe imadziwika ndi kapangidwe kake ka ulusi komanso coefficient yochepa ya kutentha, ndi yofunika kwambiri popanga ma electrode a graphite amphamvu kwambiri kapena amphamvu kwambiri; coal tar pitch imagwira ntchito ngati chomangira.
- Kukonza zinthu zisanakonzedwe: Zipangizo zopangira zimayikidwa mu calcium kuti zichotse chinyezi ndi zinthu zosakhazikika, zomwe zimapangitsa kuti zikhale bwino. Kutentha kwa calcium nthawi zambiri kumayendetsedwa pakati pa 1250-1350°C kuti zitsimikizire kuti zipangizozo zikukwaniritsa miyezo yapamwamba.
Kuphwanya, Kupera, ndi Kuwunika:
Zipangizo zopangira calcium zimaphwanyidwa, kuphwanyidwa, ndikufufuzidwa kuti tipeze tinthu ta mafupa ndi ufa wokhala ndi kukula kwa tinthu tomwe timafunikira. Gawo ili ndilofunika kwambiri pa njira zosakanikirana ndi kusakaniza pambuyo pake, kuonetsetsa kuti zinthu zopangirazo zimagwirizana komanso zimakhala zofanana.
Kusakaniza ndi Kusakaniza:
- Kusakaniza: Kutengera zomwe zimafunika pa chinthucho, zinthu zopangira zomwe zasankhidwa zimasakanizidwa m'njira inayake kuti zigwire bwino ntchito. Kuyeza bwino komanso kuwongolera bwino nthawi yosakaniza ndikofunikira kuti zinthuzo zikhale bwino nthawi zonse.
- Kusakaniza: Zipangizo zopangira zosakaniza zimasakanizidwa bwino ndikukanda kuti zikhale zosakaniza zofanana. Kutentha ndi nthawi zimayendetsedwa panthawi yosakaniza kuti zitsimikizire kusakaniza koyenera komanso kusinthasintha komwe kukufunika kwa zipangizo zopangira.
Kuumba:
Zipangizo zophwanyidwazo zimakanikizidwa kuti zipange mawonekedwe oyamba a electrode ya graphite. Kulamulira bwino kuthamanga ndi kutentha panthawi yopangira ndikofunikira kuti zitsimikizire kuti mawonekedwe ndi kukula kwake ndi olondola. Njira zopangira zinthuzo zikuphatikizapo kukanikiza, kutulutsa, ndi kugwedeza, zomwe zimasankhidwa kutengera mtundu wa chinthucho ndi zomwe zafotokozedwa.
Kuphika:
Magetsi a graphite opangidwa ndi ulusi amatenthedwa ndi kutentha kwambiri kuti akhazikitse kapangidwe kake. Pophika, phula la malasha m'thupi lobiriwira limakoka, kutulutsa zinthu zosinthasintha pamene likuchepa mphamvu ya voliyumu ndi kutayika kwa unyinji. Magetsi ophikawo amasonyeza bwino kwambiri mphamvu za physicochemical, monga kuchepa kwa kuchuluka kwa unyinji, kuchepa kwa mphamvu yamagetsi, komanso mphamvu ya makina yowonjezera.
Kubereka (Mwasankha):
Pa ma electrode omwe ali ndi kuchuluka kwakukulu kwa zinthu, chithandizo cha impregnation n'chofunikira. Impregnation cholinga chake ndi kuchepetsa porosity ya chinthucho, kuwonjezera kuchuluka kwake kwakukulu ndi mphamvu ya makina, ndikuwonjezera mphamvu yake yamagetsi ndi kutentha. Ma parameter monga kutentha koyambirira, nthawi yopumira, kutentha kwa jakisoni wa asphalt, ndi kupanikizika zimayendetsedwa panthawi yopumira.
Kusintha kwa zithunzi:
Elekitirodi imakonzedwa pa kutentha kwakukulu kuti isinthe kapangidwe ka zinthu za kaboni kukhala kapangidwe ka kristalo wa graphite, zomwe zimapangitsa kuti magetsi aziyenda bwino komanso kuti asatenthe. Kutentha ndi nthawi zimayendetsedwa panthawi ya graphitization kuti zitsimikizire kuti elekitirodiyo yafika pamlingo woyenera wa graphitization. Elekitirodi yojambulidwayo imakhala ndi mphamvu yotsika kwambiri yamagetsi komanso mphamvu yoyenda bwino kwambiri.
Kupanga Machining:
Ma electrode opangidwa ndi grafiti amapangidwa pogwiritsa ntchito makina, kuphatikizapo kupotoza, kutembenuza, kumaliza kumapeto, kupukuta ulusi, ndi masitepe monga kudula, kupyapyala kumapeto, kutembenuza pang'ono, ndi kuboola zolumikizira. Kuwongolera mwamphamvu kulondola kwa makina ndi khalidwe la pamwamba ndikofunikira panthawi yokonza kuti zitsimikizire kulondola kwa electrode ndi magwiridwe antchito ake.
Kuyendera ndi Kulongedza:
Electrode yomalizidwa imayesedwa mokwanira, kuphatikizapo magawo monga kulondola, kulemera, kutalika, m'mimba mwake, kuchuluka kwa zinthu, kukana kwa magetsi, komanso kulondola koyenera kwa chinthucho. Pambuyo poyesedwa, electrode imapakidwa kuti inyamulidwe ndikusungidwa.
Nthawi yotumizira: Julayi-14-2025