Xa ukhetha indawo efanelekileyo yangaphandleitreyi yentambo, kukho izinto ezimbini eziqhelekileyo ezihlala ziqwalaselwa: itreyi yekhebula egqunywe nge-hot-dip kunye netreyi yekhebula yentsimbi engagqwaliyo. Isixhobo ngasinye sineempawu zaso ezizodwa, izibonelelo kunye neengxaki, kwaye sifanelekile kwiindawo ezahlukeneyo kunye nokusetyenziswa.
Iitreyi zekhebula ezishushu ezifakwe kwi-galvanizedzenziwe ngentsimbi egqunywe kusetyenziswa inkqubo ye-hot dip galvanizing. Le ngubo inika ukumelana nokugqwala okuhle kakhulu, okwenza ukuba ilungele ukusetyenziswa ngaphandle apho kufuneka ikwazi ukusingatha ukufuma kunye neemeko zemozulu ezimbi. Umaleko we-zinc usebenza njenge-anode yokuzinikela, ukhusela intsimbi engaphantsi kumhlwa kunye nokubola. Ukongeza, iitreyi zekhebula ze-hot dip galvanised zihlala zibiza kakhulu kuneetreyi zekhebula zentsimbi engagqwaliyo, nto leyo eyenza ukuba zibe lukhetho oludumileyo kwiiprojekthi ezinkulu.
Kwelinye icala, iitreyi zekhebula zentsimbi engagqwaliyo zibonelela ngokuqina okuphezulu kunye nokumelana nokugqwala, ingakumbi kwiindawo apho kunokwenzeka ukuba zichaphazeleke kwiikhemikhali okanye ityuwa. Intsimbi engagqwaliyo ngokwemvelo ayimelani nokugqwala kwaye inokumelana nobushushu obugqithisileyo, nto leyo eyenza ukuba ibe lolona khetho lufanelekileyo kumashishini afana nolwandle, ukucubungula iikhemikhali, kunye nemveliso yokutya. Nangona iitreyi zekhebula zentsimbi engagqwaliyo zidla ngokubiza ngaphezulu kuneetreyi zekhebula ezishushu eziditywayo, ubomi bazo obude kunye nokugcinwa kwazo okuncinci kwenza zifanele utyalo-mali oluphambili.
Ngamafutshane, ukhetho phakathi kwe-hot-dip galvanized kunye ne-iitreyi zekhebula zentsimbi engagqwaliyokuxhomekeke kakhulu kwiimeko ezithile zokusingqongileyo kunye nemida yohlahlo-lwabiwo mali yeprojekthi. Kwiinkqubo zangaphandle ngokubanzi apho iindleko zibalulekile, iitreyi zekhebula ezifakwe i-hot-dip galvanized zinokuba lolona khetho lubalaseleyo. Nangona kunjalo, kwiindawo ezifuna ukumelana nokugqwala okuphezulu kunye nokuqina, iitreyi zekhebula zentsimbi engagqwaliyo zezona zilungileyo. Ekugqibeleni, ukuqonda iimpawu ezizodwa zesixhobo ngasinye kuya kunceda ukwenza isigqibo esinolwazi ukuqinisekisa ukuba inkqubo yolawulo lwekhebula ihlala ixesha elide kwaye ithembekile.
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Ixesha leposi: Julayi-10-2025