Filler graphite, azaman babban abin rufewa{0}aiki, ana amfani dashi sosai a cikin sinadarai, man fetur, da masana'antar wuta. Tsarinsa na samar da shi kai tsaye yana rinjayar da yawa kayan, juriyar lalata, da ƙarfin injina. Wannan labarin zai tattauna daki-daki game da tsarin samar da filler graphite da mahimman abubuwan fasaha.
Ayyukan filler ɗin graphite da farko sun haɗa da latsawa, extrusion, da gyare-gyaren matsawa. Matsi gyare-gyare ita ce hanyar da aka fi sani da ita, ta dace da albarkatun foda ko granular graphite raw kayan. Wannan tsari yana amfani da na'ura mai aiki da karfin ruwa ko injin inji don haɗa foda graphite tare da ɗaure sannan a danna shi cikin siffar da ake so a ƙarƙashin matsanancin zafi da matsa lamba. Yayin aiwatar da latsawa, matsa lamba iri ɗaya yana da mahimmanci ga yawa da ƙarfin samfurin ƙarshe. Yawanci ana sarrafa matsa lamba tsakanin 10 zuwa 30 MPa, kuma ana kiyaye yanayin zafi tsakanin digiri 150 zuwa 300 don haɓaka laushi da haɗin kai na ɗaure.
Extrusion gyare-gyaren ya dace da ci gaba da samar da sandunan graphite ko bututu. Tsarin ya haɗa da haɗaɗɗen albarkatun ƙasa, durƙusa, extrusion, da bushewa. Ana gauraya foda da abin ɗaure (kamar phenolic resin ko kwalta) sosai a cikin ƙullu don samar da slurry na roba iri ɗaya. Ana fitar da wannan slurry ta hanyar mutuwa zuwa wani takamaiman siffa - sashe. Extrusion gyare-gyare yana buƙatar ƙira mai girma don tabbatar da kwararar slurry iri ɗaya da guje wa lahani na ciki. Samfurin da aka ƙera yana fuskantar ƙididdige yawan zafin jiki don cire abubuwan da ba su da ƙarfi daga abin ɗaure da haɓaka zane-zane.
Yin gyare-gyaren matsi ya dace da hadadden hatimin graphite mai siffa{0}, kamar gaskets ko fakitin shekara-shekara. Wannan tsari ya haɗa da haɗa foda mai graphite da mai ɗaure a cikin rabo mai dacewa, cika cakuda a cikin ƙirar ƙarfe da aka riga aka rigaya, sa'an nan kuma amfani da matsi zuwa ƙirar ta amfani da latsa. Makullin gyare-gyaren matsawa shine sarrafa ƙimar dumama da lokacin zama don tabbatar da tsari mai yawa na ciki ba tare da lalata ba. Matsakaicin ƙididdiga yawanci tsakanin digiri 800 zuwa digiri 1200 don ƙara haɓaka juriyar yanayin zafi da kwanciyar hankali na graphite filler.
Zaɓin ɗaure kuma yana taka rawa a cikin tsarin gyare-gyaren gyare-gyaren graphite. Abubuwan ɗaure gama gari sun haɗa da resins, ƙarfe oxides, da kwalta. Masu ɗaure daban-daban suna shafar ƙayyadaddun yanayin zafi na kayan, juriyar lalata, da ƙarfin injina. Misali, resin phenolic ya dace da matsakaita{3}} da ƙananan{4}} muhallin zafin jiki, yayin da masu ɗaure ƙarfe (kamar foda na jan ƙarfe) na iya inganta juriyar lalacewa da zafin jiki na filler.
A taƙaice, dole ne a inganta tsarin gyare-gyaren filler ɗin graphite dangane da halayen albarkatun ƙasa, buƙatun aikace-aikacen, da yanayin kayan aiki. Ta daidai sarrafa matsa lamba, zafin jiki, da rabo mai ɗaure, za a iya samar da kayan aikin hatimin graphite mai girma don biyan buƙatun masana'antu don lalata{2}, tsayin{3}}zazzabi{4}}mai jurewa, da kuma dogon{5} mafita na rufe rayuwa.
