Uma kuziwa epayipini lensimbi elicwilisiwe elishisayo, inqubo yokufaka i-hot-dip galvanizing iholela kusibopho se-metallurgical phakathi kwe-zinc nensimbi enochungechunge lwama-alloys e-iron-zinc ahlukile. Ulayini we-hot-dip galvanizing ojwayelekile usebenza kanje:
◆Insimbi ihlanzwa kusetshenziswa ikhambi le-caustic. Lokhu kususa amafutha/amafutha, ukungcola, nopende.
◆Isixazululo sokuhlanza i-caustic siyahashazwa.
◆Insimbi ifakwe emanzini anomuncu ukuze kukhishwe isikali sokugaya.
◆Ikhambi lokukha amanzi liyahlanzwa.
◆I-flux, ngokuvamile i-zinc ammonium chloride isetshenziswa ensimbi ukuze kuvinjelwe i-oxidation yendawo ehlanziwe lapho ichayeka emoyeni. I-flux ivunyelwe ukuba yome phezu kwensimbi kanye nezinsiza ohlelweni lokumanzisa kwe-zinc nokunamathela ensimbi.
◆Insimbi icwiliswa kubhavu we-zinc oncibilikisiwe futhi igcinwe lapho kuze kube yilapho izinga lokushisa lensimbi lilingana nelokugeza.
Ngobuchwepheshe, uthayela kuyinqubo yokumboza insimbi nensimbi ngongqimba lwezinc ngokucwilisa insimbi kubhavu we-zinc encibilikisiwe ezingeni lokushisa elicishe libe ngu-840 °F (449 °C). Lapho itholakala emkhathini, i-zinc ehlanzekile (Zn) ihlangana ne-oxygen (O2) ukuze yakhe i-zinc oxide (ZnO), ephinde ihlangane ne-carbon dioxide (CO2) yakhe i-zinc carbonate (ZnCO3), ngokuvamile okumpunga okufiphele, okuqinile. impahla evikela insimbi ngaphansi ekugqwaleni okwengeziwe ezimweni eziningi. Ngokuvamile, ipayipi elifakwe uthayela elishisayo linenani eliphakeme lentengo yamapayipi ensimbi kunezinye izinhlobo ezijwayelekile zamapayipi asetshenziswayo ngenxa yezindleko zawo eziphezulu zokukhiqiza emakethe.
Ezisetshenziswa ezingokoqobo, njengezinye izinhlelo zokuvikela ukugqwala, ukwenza uthayela kuvikela ikakhulukazi imikhiqizo yensimbi ngokusebenza njengesithiyo phakathi kwensimbi nomoya. Kodwa-ke, i-zinc iyinsimbi enamandla kakhulu e-electronegative uma iqhathaniswa nensimbi. Lesi yisici esiyingqayizivele sokwenza ama-galvanizing. Ikakhulukazi, lapho uthayela lonakalisiwe futhi umkhiqizo wensimbi uvezwe emkhathini, i-zinc ingaqhubeka nokuvikela insimbi ngokugqwala kwe-galvanic. Ngaphandle kwalokho, ngenxa yokuqina kwayo kanye nezindawo zokunqanda ukugqwala, amapayipi amaningi ensimbi abandayo angagaywa kabusha futhi asetshenziswe kabusha, okuthi ngokwezinga elithile onge imali eningi ngesikhathi somsebenzi wokulungisa okuthunyelwe.
Ngongqimba lokuvikela, amapayipi angasetshenziswa ezindaweni ezingaphandle, futhi angakwazi ukumelana nokulimala kweminye yemiphumela yemvelo. Ukuhlola nocwaningo kuveze ukuthi isilinganiso seminyaka yokuphila kwezinsimbi ezithathiwe ezisetshenziswa njengempahla yesakhiwo esijwayelekile singaphezu kweminyaka engama-50 endaweni yasemaphandleni kanye neminyaka engama-20-25 noma ngaphezulu endaweni yasemadolobheni noma esogwini ngokwedlulele. Kulokho, osonkontileka bangasebenzisa ngokuzethemba lo mkhiqizo kuphrojekthi. Njengomkhiqizi ochwepheshe wepayipi lensimbi e-China, sizibophezele ekukhiqizeni izinhlobo ezahlukene zamapayipi ensimbi kumaphrojekthi akho. Ukuze uthole ulwazi olwengeziwe, ungasithinta noma nini.
Thumela umlayezo wakho kithi:
Isikhathi sokuthumela: Sep-14-2018
