Amakhoyili ensimbi ayizinto ezibalulekile ezisetshenziswa kabanzi ekwakhiweni, ezimotweni, ezintweni zikagesi, kanye nezinye izinhlobo zezimboni. Phakathi kwezinhlobo ezithandwayo zamakhoyili ensimbi ahlanganisiwe kukhona amakhoyili ensimbi ye-GI (Galvanized Iron) kanye ne-GL (Galvalume). Ukuqonda umehluko phakathi kwezinto ezimbili lezi kubalulekile kumabhizinisi ahlose ukuthuthukisa ukusebenza, ukuqina, kanye nokonga izindleko emaphrojekthi abo. Lesi sihloko sihlinzeka ngokuqhathanisa okuningiliziwe phakathi kwe-GI vs GL steel coil, sigqamisa izici ezibalulekile njengokwakheka, ukuqedwa kwezindawo, ukusebenza kwemvelo, izindleko, kanye nezincomo zokusebenzisa.

Ukukhetha uhlobo olufanele lwe-coated steel coil kungathinta kakhulu ukuqina kwezindleko zokugcinwa komkhiqizo wokugcina. Ngokuhlola izici nokusebenza kwe-GI ne-GL steel coils, leli bhukwana lihlose ukusiza abakhiqizi, abakhi, nabathengi ukuthi benze izinqumo ezinolwazi. Ngaphezu kwalokho, sizoxoxa ngezingozi ezihlobene nokunamathela kwe-coating futhi sinikeze izeluleko ezisebenzayo ezihambisana nezimo ezahlukahlukene zemvelo.

I-GI steel coil, noma i-galvanized iron steel coil, ingeyensimbi egcotshwe ngongqimba lwe-zinc ngenqubo ye-hot-dip galvanizing. Le ngqimba ye-zinc inikeza ukumelana nokugqwala ngokusebenza njengongqimba oluzidela, ivikela insimbi engaphansi ngaphansi ekugqwaleni nasekulimaleni kwemvelo. Ubukhulu bengqimba kanye nobumsulwa be-zinc kuthinta izinga lokuvikela nokuphila kwe-GI steel.

Ngokungafani, insimbi ye-GL, eyaziwa njenge-Galvalume steel coil, inengubo eyenziwe ngokuhlanganiswa cishe u-55% we-aluminium, u-43.5% we-zinc, kanye no-1.5% we-silicon. Le ngubo eyihlukile yensimbi ihlanganisa izinzuzo zokumelana nokugqwala ze-aluminium nokuvikelwa kwe-zinc, kanye nokumelana okuthuthukisiwe nokushisa nokubola. Ubukhona be-aluminium bunikeza insimbi ye-GL isiphetho esihlukile esifana nesiliva neziphetho ezihlukile uma kuqhathaniswa ne-GI steel.

Zombili izinsimbi ze-GI neze-GL ziqala kusimbi esifanayo esibandayo, kodwa ukwakheka kwengubo yazo kanye nezindlela zokuyisebenzisa kunikeza amandla nobuthakathaka obuhlukile. Ukuqonda lezi zinto ezihlukile kuyisisekelo sokuhlola ukufaneleka kwazo ezindaweni nasezinhlelweni ezithile.

Enye yezinto ezibonakala kakhulu phakathi kwezinsimbi ze-GI ne-GL yindlela ezingaphezulu kanye nokuthungwa kwazo. Izinsimbi ze-GI ngokuvamile zinomumo ongacwebezi noma oqine kancane obangelwa ukwakheka kwe-zinc ngesikhathi senqubo ye-galvanizing. Lokhu kuthungwa kunikeza ukubambelela okungcono kwezinto zokupenda nama-coatings, okwenza insimbi ye-GI ilungele lapho izinqubo zokuqedela ezilandelayo zidinga amandla aqinile okubambelela kwe-coating.

Ngakolunye uhlangothi, amashaladi ensimbi e-GL anendawo ebushelezi, ebonakalisa kakhulu ngenxa yokugqoka okucebile nge-aluminium. Ubushle obunjalo bukhulisa ukumelana nokugqwala kanye nokubukeka okuhle, kodwa bungadala izinselele kumagqoko adinga ukubambelela okuphezulu. Imidwebo ekhethekile noma amagqoko empuphu angase angabambeleli kahle ezindaweni zensimbi ye-GL ngaphandle kokulungiswa kahle, okuyinto ebalulekile ezicelo ezidinga imiqedelo enemidwebo.

Lelihlukile ekuqedeleni libuye lithinte ikhwalithi yokuthinta kanye nokufana okubonakalayo kwensimbi, okwenza insimbi ye-GL ikhethwe ezimbonini lapho ukubukeka kubalulekile khona nokumelana nokugqwala kubaluleke kakhulu.

Izimo zemvelo lapho ama-steel coils achayeka khona zithinta kakhulu ukuphila kwawo nokusebenza kwawo. I-GI steel coil yenza kahle ezindaweni ezinomswakama ophakathi lapho ukugqokwa komshini kucatshangelwa khona. Ukugqoka kwe-zinc kuvikela kahle ukugqwala ezindaweni eziningi zezimboni nezamadolobha, kodwa ukuvikelwa kwayo kungancipha ezindaweni ezinokubola kakhulu noma zasolwandle.

Insika yensimbi ye-GL igqama ekumeleni ukugqwala ezindaweni ezinzima njengezindawo ezisogwini, izindawo zezimboni ezinokungcola okune-asidi, noma izifunda ezinezinguquko zokushisa. I-aluminium esengozini yakha ungqimba oluqinile, olunamathiselwe lwe-oxide oluvikela insimbi engaphansi ekugqwaleni nasezintweni ezonakalisa. Insimbi ye-GL iphinde yenze kangcono ekumeleni ukushisa, okuyenza ilungele izicelo ezivezwe izinga lokushisa eliphezulu.

Nokho, ezindaweni lapho ukunamathiselwa upende kubaluleke kakhulu, insimbi ye-GI ingase ibe ngcono naphezu kokumelana kwayo nokugqwala okuphansi kancane. Lokhu kuhlanganiswa phakathi kokumelana nokugqwala nokuguquguquka kokunamathiselwa kwe-coating kufanele kucatshangelwe ngokucophelela lapho ukhetha phakathi kwezinsimbi ze-GI neze-GL ngokusekelwe ezimweni zendawo.

Izindleko zivame ukuba yisici esinqumayo ekukhetheni phakathi kwe-GI ne-GL steel coils. Ngokuvamile, i-GL steel coil ibiza kakhulu ngenxa yokuthi inqubo yayo yokufaka i-coating iyinkimbinkimbi futhi inezici zokusebenza eziphezulu. Izinto zokwakha ze-Galvalume coatings, kuhlanganise ne-aluminium, zibhakabhaka kakhulu kune-zinc kuphela, okwenza kube nezehlakalo ezihlukene kwezindleko.

Ngenkathi izindleko zokuqala ze-GL steel ziphakeme, impilo yayo yokusebenza ende kanye nok maintenance okuncishisiwe kuvame ukufakazela le mali, ikakhulukazi ezindaweni ezidinga kakhulu. I-GI steel coil, enenani layo lokuqala eliphansi, ingase ibe nentshisekelo enkulu kumaphrojekthi abiza kakhulu noma lapho izimo zemvelo zingezinzima kakhulu.

Kubhalulekile ukuhlola izindleko eziphelele zokuba nempahla, kuhlanganise nokugcinwa, ukuhlela kabusha, noma ukufaka esikhundleni, ukuze wenze isinqumo esinengqondo ngokwezimali mayelana ne-GI vs GL steel coils.

Ukukhetha i-steel coil efanele kuncike ezidingweni ezithile zokusebenza okuhlosiwe. I-GI steel coils ikhethwa uma ukuhlanganiswa okuqinile kokumboza kudingeka, njengokwakhiwa kwephepha lokumboza elidinga ukugqokwa kwepende okusezingeni eliphezulu noma izinto zokusebenza zangaphakathi lapho ukuhlanganiswa kwemishini kokumboza kubalulekile. Ukuhluka kwabo ekusetshenzisweni kwepende kubenza babe ne-flexibility ezinhlelweni ezahlukene zokuphetha.

Amakhoyili ensimbi ye-GL alungele izindawo zangaphandle ezivezwe imvula enkulu, ukungcola kwezimboni, noma izimo zasolwandle ngenxa yokumelana kwawo okungcono nokubekezelelana nokushisa. Izicelo zihlanganisa uphahla lwangaphandle, izindonga, namaphaneli ezimboni lapho ukuqina nokubukeka ngokuhamba kwesikhathi kuyizinto ezibalulekile.

Emiklimeni enomswakama omkhulu noma ukuchayeka osaweni, insimbi ye-GL yehlisa izindleko zokugcinwa kwesikhathi eside naphezu kwentengo ephakeme yezinto. Ngokuphambene, ezifundeni ezinesimo sezulu esithambile noma ezomile, insimbi ye-GI ihlinzeka ngendlela enye engabizi kakhulu ngokusebenza okwamukelekayo.

Isici esibalulekile esivame ukunganakwa yingozi ehlobene nokubambelela kwesigqoko ku-GI vs. amakhoyili ensimbi ye-GL. Indawo ebushelelezi, ecwebezelayo yensimbi ye-GL ingavimbela ukubambelela kwezinhlelo ezithile zopende, okwandisa ingozi yokwehluleka kwesigqoko, ukukhuphuka, noma ukubila. Lokhu kungaholela ekugqwaleni ngaphambi kwesikhathi ngaphansi kwesigqoko nokwanda kwezindleko zokugcinwa.

Ukuqeda okungafani kahle kwensimbi ye-GI kukhuthaza ukubopha okungcono komshini ngepeyinti nezendlalelo zempuphu, okunikeza ukwethembeka okwengeziwe kwemikhiqizo enezendlalelo ebekwe ekucindezelweni komshini noma ukugoqeka. Kodwa-ke, isendlalelo se-zinc sivuleleke kakhulu ekulimaleni komhlaba okungaholela ekugqwaleni okungapheli uma izendlalelo zilimazekile.

Abakhiqizi kufanele bakhethe ngokucophelela izinto ezihambisanayo zezendlalelo nezindlela zokulungisa umhlaba ngokusekelwe ohlotsheni olukhethiwe lwe-steel coil ukuze kuncishiswe lezi zingozi ngempumelelo.

Ngokufingqiwe, ukukhetha phakathi kwe-GI ne-GL steel coils kuncike kubhalansi phakathi kokumelana nokugqwala, izidingo zokubopha izendlalelo, izimo zemvelo, nemikhawulo yebhajethi. Insimbi ye-GI inikeza ukubopha okuguquguqukayo kwezendlalelo kanye nezindleko zokuqala eziphansi kodwa ukumelana okuncane nezindawo ezinzima. Insimbi ye-GL ihlinzeka ngokumelana okungcono nokushisa nokugqwala ngokuqeda okubushelela kakhulu kodwa ngentengo ephakeme kanye nezinselelo ezingenzeka zokubopha izendlalelo.

Graceful Wise, etholakala eShenyang, esifundazweni saseLiaoning, iyona ehamba phambili ngokudayisa imikhiqizo ye-galvanized eNyakatho-mpumalanga yeChina futhi ilungele ukuhlinzeka ngama-GI nama-GL steel coils enziwe ngokwezidingo zamakhasimende ahlukahlukene. Ngolwazi olunzulu kanye namanani ancintisanayo, iGraceful Wise iyisihambeli esithembekile samabhizinisi adinga imikhiqizo yensimbi esezingeni eliphezulu eyenziwe ngokwezimo zemvelo zasekhaya.

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