Gabatarwa, aikace-aikace da tsarin samar da farin corundum
Farin Fused Alumina (WFA)shi ne abrasive wucin gadi da aka yi da masana'antu alumina foda a matsayin babban kayan albarkatun kasa, wanda aka sanyaya da crystallized bayan babban zafin jiki narke. Babban bangarensa shine aluminum oxide (Al₂O₃), tare da tsafta fiye da 99%. Fari ne, mai wuya, mai yawa, kuma yana da kyakkyawan juriya na zafin jiki, juriya na lalata da kaddarorin rufewa. Yana daya daga cikin abubuwan da ake amfani da su na ci-gaba.
1. Gabatarwar Samfur
Farin corundum wani nau'in corundum ne na wucin gadi. Idan aka kwatanta da corundum mai launin ruwan kasa, yana da ƙananan ƙazanta na ƙazanta, mafi girma taurin, launi mafi fari, babu silica kyauta, kuma ba shi da lahani ga jikin mutum. Ya dace musamman don lokuttan tsari tare da manyan buƙatu don tsabtace tsabta, launi da aikin niƙa. Farin corundum yana da taurin Mohs har zuwa 9.0, na biyu kawai zuwa lu'u-lu'u da siliki carbide. Yana da kyawawan kaddarorin kai-da-kai, ba shi da sauƙi don mannewa saman aikin aiki yayin niƙa, kuma yana da saurin zafi. Ya dace da duka busassun da hanyoyin sarrafa rigar.
2. Babban Aikace-aikace
Saboda kaddarorinsa na zahiri da sinadarai na musamman, farin corundum ana amfani da shi sosai a fagage da yawa na ƙarshe, gami da amma ba'a iyakance ga abubuwan masu zuwa ba:
Abrasives da kayan aikin niƙa
Ana amfani da shi don kera ƙafafun niƙa yumbu, ƙafafun niƙa, Emery zane, sandpaper, scouring pads, pastes, da sauransu.
Yashi da goge goge
Ya dace da tsaftacewar ƙarfe na ƙarfe, cire tsatsa, ƙarfafawa da jiyya na matte. Saboda tsananin taurin sa da mara guba da mara lahani, galibi ana amfani da shi don tarwatsa yashi da gogewa na madaidaicin gyare-gyare da samfuran bakin karfe.
Refractory kayan
Ana iya amfani da shi azaman tara ko ƙura mai kyau na bulogi na ci gaba, siminti, da kayan siminti. Ana amfani da shi sosai a cikin yanayin zafi mai zafi kamar karfe, rufin da ba na ƙarfe ba na ƙarfe, murhun gilashi, da sauransu.
Masana'antar lantarki/na gani
Ana amfani da shi don kera yumbu mai tsafta, niƙa gilashin gani, polishing sapphire substrate polishing, semiconductor silicon wafer tsaftacewa da niƙa, da dai sauransu, kuma ana buƙatar high-tsarki ultrafine farin corundum foda.
Filler mai aiki
An yi amfani da shi a cikin roba, filastik, sutura, yumbu glaze da sauran masana'antu don inganta juriya na lalacewa, kwanciyar hankali na thermal da kayan aiki na kayan aiki.
3. Tsarin samarwa
Tsarin samar da farin corundum yana da tsauri da kimiyya, galibi gami da mahimman matakai masu zuwa:
Shirye-shiryen albarkatun kasa
Zaɓi babban-tsarki masana'antu alumina foda (Al₂O₃≥99%), allo da chemically gwada albarkatun kasa don tabbatar da cewa ƙazanta abun ciki ne musamman low kuma barbashi size ne uniform.
Arc narkewa
Saka alumina foda a cikin tanderun baka mai kashi uku kuma a narke shi a babban zafin jiki na kusan 2000 ℃. A lokacin aikin narkewar, na'urorin lantarki suna dumama don narkar da alumina gaba ɗaya kuma a cire ƙazanta don samar da narke corundum mai tsabta.
Yin sanyaya crystallization
Bayan narkewar ta yi sanyi, ta dabi'a tana yin crystallizes don samar da lu'ulu'u masu toshe fararen corundum. Jinkirin sanyaya yana taimakawa haɓakar hatsi da kwanciyar hankali, wanda shine maɓalli mai mahimmanci don tabbatar da ingancin farin corundum.
Crushing da Magnetic rabuwa
Ana murƙushe lu'ulu'u na corundum da aka sanyaya kuma an murƙushe su ta hanyar kayan aikin injiniya, sannan ana cire ƙazanta irin su baƙin ƙarfe ta hanyar rarrabuwar maganadisu mai ƙarfi don tabbatar da tsabtar samfurin da aka gama.
Murkushewa da nunawa
Yi amfani da injin ƙwallon ƙwallon ƙafa, niƙan iska da sauran kayan aiki don murkushe farin corundum zuwa girman da ake buƙata, sannan yi amfani da kayan aikin tantance madaidaicin ƙima don ƙima girman barbashi bisa ga ƙa'idodin ƙasashen duniya (kamar FEPA, JIS) don samun yashi ko micro foda na ƙayyadaddun bayanai daban-daban.
Fine grading da tsaftacewa (dangane da manufar)
Ga wasu high-karshen aikace-aikace, kamar lantarki sa da Tantancewar sa fari corundum foda, iska kwarara rarrabuwa, pickling da ultrasonic tsaftacewa ake da za'ayi don kara inganta tsarki da barbashi size iko daidaito.
Ingancin dubawa da marufi
The ƙãre samfurin bukatar sha wani jerin ingancin sarrafa matakai kamar sinadaran bincike (Al₂O₃, Fe₂O₃, Na₂O, da dai sauransu), barbashi size ganowa, fari ganowa, da dai sauransu, da kuma bayan wucewa gwajin, an kunshe ne bisa ga abokin ciniki bukatun, kullum a cikin 25kg bags ko ton jaka.
A matsayin kayan masana'antu tare da kyakkyawan aiki, farin corundum yana taka rawar da ba za a iya maye gurbinsa ba a yawancin masana'antu. Ba wai kawai wakili mai mahimmanci na abrasives masu girma ba, amma har ma da mahimmancin kayan aiki a cikin manyan fasahohin fasaha irin su kayan aiki na ainihi, yumbu mai aiki, da kayan lantarki. Tare da ci gaba da ci gaban fasaha na masana'antu, ƙimar ingancin kasuwa don farin corundum kuma ana ci gaba da haɓakawa, wanda kuma ke haifar da masana'antun su ci gaba da haɓaka tafiyar matakai, haɓaka aikin samfur, da haɓaka cikin jagorar mafi girman tsabta, girman ƙarancin barbashi, kuma mafi inganci.