Graphite na roba wani nau'in polycrystalline ne mai kama da lu'ulu'u. Akwai nau'ikan graphite na roba da yawa da kuma hanyoyin samarwa daban-daban.
A faffadan ma'ana, duk kayan graphite da aka samu bayan carbonization na kwayoyin halitta da graphitization a babban zafin jiki za a iya kiransu da graphite na wucin gadi, kamar zare na carbon (graphite), pyrolytic carbon (graphite), kumfa graphite, da sauransu.
A ma'anar kunkuntar, graphite na wucin gadi yawanci yana nufin manyan kayan ƙarfi, kamar su electrode graphite, graphite isostatic, wanda aka yi ta hanyar batching, cakuda, molding, carbonization (wanda aka sani da gasa a masana'antu) da graphitization, tare da ƙarancin ƙazanta na kayan albarkatun gawayi (coke na fetur, coke na asfalt, da sauransu) a matsayin tarawa, kuma kwal ɗin yana da mannewa.
Akwai nau'ikan graphite na wucin gadi da yawa, ciki har da foda, zare da toshewa, yayin da kunkuntar ma'anar graphite na wucin gadi yawanci tubali ne, wanda ke buƙatar a sarrafa shi zuwa wani siffa lokacin amfani da shi. Ana iya ɗaukarsa a matsayin nau'in kayan aiki masu matakai da yawa, gami da matakin graphite da aka canza ta hanyar ƙwayoyin carbon kamar coke na petroleum ko coke na asfalt, matakin graphite da aka canza ta hanyar maƙallin pitch na kwal da aka rufe a kusa da ƙwayoyin, tarin ƙwayoyin ko ramukan da maƙallin pitch na kwal ya samar bayan maganin zafi, da sauransu. Gabaɗaya, mafi girman zafin maganin zafi, mafi girman matakin graphitization. Samar da graphite na wucin gadi a masana'antu, matakin graphitization yawanci ƙasa da 90%.
Idan aka kwatanta da graphite na halitta, graphite na wucin gadi yana da rauni wajen canja wurin zafi da kuma ikon lantarki, mai danshi da kuma ƙarfin lantarki, amma graphite na wucin gadi yana da juriyar lalacewa, juriyar tsatsa da ƙarancin iskar shaka fiye da graphite na halitta.
Kayan da ake amfani da su wajen samar da graphite na wucin gadi galibi sun haɗa da man fetur coke, allura coke, asfalt coke, kwal pitch, carbon microspheres, da sauransu. Kayayyakin da ke cikinsa sun haɗa da graphite electrode, anode da aka riga aka gasa, isostatic graphite, high purity graphite, nuclear graphite, zafi exchange da sauransu.
Amfani da samfurin graphite na wucin gadi galibi yana nunawa a cikin waɗannan fannoni:
1. Electrode na Graphite: Tare da coke na petroleum da coke na allura a matsayin kayan aiki da kuma kwal a matsayin abin ɗaurewa, ana yin electrode na graphite ta hanyar calcination, batching, gaurayawa, matsewa, gasawa, graptitization da kuma injina. Ana amfani da shi sosai a cikin ƙarfe na tanderun lantarki, silicon na masana'antu, phosphorus mai rawaya da sauran kayan aiki ta hanyar sakin makamashin lantarki a cikin nau'in baka don dumama da narke cajin.
2. Anode da aka riga aka gasa: An yi shi da man fetur coke a matsayin kayan aiki da kuma kwal a matsayin abin ɗaurewa ta hanyar calcination, batching, gauraya, matsewa, gasawa, impregnation, graphitization da machining, gabaɗaya ana amfani da shi azaman anode mai sarrafa kayan aikin aluminum na electrolytic.
3. Zoben ɗaurewa, zoben ɗaurewa: jigilar kayan aikin watsa labarai masu lalata, graphite na wucin gadi da aka yi amfani da shi sosai wanda aka yi da zoben piston, zoben ɗaurewa da bearings, suna aiki ba tare da ƙara mai mai ba.
4. Mai musayar zafi, ajin matattara: Graphite na wucin gadi yana da halaye na juriya ga tsatsa, kyakkyawan yanayin zafi da ƙarancin iskar shaka. Ana amfani da shi sosai a masana'antar sinadarai don yin mai musayar zafi, tankin amsawa, mai sha, matattara da sauran kayan aiki.
5. Graphite na musamman: tare da coke mai inganci a matsayin kayan da aka ƙera, kwal ko resin roba a matsayin abin ɗaurewa, ta hanyar shirya kayan, yin batching, kurkura, matsewa, niƙawa, haɗa kurkura, molding, gasawa da yawa, shigar da yawa, tsarkakewa da graphitization, injinan da aka yi, gabaɗaya gami da isostatic graphite, graphite na nukiliya, graphite mai tsarki, ana amfani da shi a fannin sararin samaniya, lantarki, masana'antar nukiliya.
Lokacin Saƙo: Nuwamba-23-2022