Ingabe Udidekile Mayelana Nesakhiwo Sensimbi Sokugqwala? Izinketho Ezijwayelekile Nemihlahlandlela Yokukhetha

Isakhiwo sensimbii-anti-corrosion ibalulekile ukuze kunwetshwe impilo yesevisi yezakhiwo. Izikimu zokuvikela ukugqwala ziyahlukahluka kuye ngendawo ehlukene yemvelo kanye nesevisi. Ukuhlola okuphelele kuyokwenziwa kukho kokubili ukulungiswa kwendawo kanye nezinyathelo zokunqanda ukugqwala ukuze kuncishiswe izindleko zokuqala zokwakha kanye nokwelula isikhathi sokuphila kwesakhiwo.

Zonke izinhlobo zezakhiwo zingaphansi komthelela wezindawo ezonakalisayo, ezihlukaniswa ngezigaba ezihlukene zokugqwala ngokusekelwe ezimeni zesevisi.

Kuzokhethwa izikimu ezihlukene zokulwa nokugqwala ukuze kubhekwane nezindawo ezigqwalile. Kungakhathaliseki ukuthi yisiphi isisombululo esamukelwayo, ukulungiswa kwendawo kubeka isisekelo sokuvikela ukugqwala futhi kunquma ukuthi ukumboza okuyisivikelo kungenza njengoba kuklanywe yini. Ngokuvamile, ukuqhunyiswa kwesihlabathi noma ukuqhunyiswa kwesibhamu kusetshenziswa ekususeni ukugqwala kwezindawo zokusebenzela zesakhiwo sensimbi, ngebanga lokuhlanzeka elincane le-Sa2.5, elichazwa njengokuhlanza ukuqhuma okuphelele kakhulu. Ngaphezu kwalokho, izinga lokugqwala lokuqala le-substrates yensimbi kufanele licatshangelwe. Izinto ezingavuthiwe ezingakwazi ukuhlangabezana nezinga elidingekayo ngisho nangemva kokwelashwa okungaphezulu zizoshintshwa noma zilahlwe.

Lapho sekuqediwe ukulungiswa kwendawo, isinyathelo esilandelayo ukukhetha uhlelo lokulwa nokugqwala. Ukufafaza ukupenda kanye nokufaka i-hot-dip galvanizing yizixazululo ezimbili ezijwayelekile. Ngaphandle kwalokho, izindlela ezimbalwa ezivuthiwe zokulwa nokugqwala zamukelwa kabanzi kumaphrojekthi asebenzayo: 

(1) Insimbi yesimo sezulu ibhekana nezinkinga zokugqwala, ezisebenza ngaphandle kancaneizakhiwo zensimbi, nokho kunezihibe zezindleko eziphezulu nokubukeka kabi. 

(2) Ukufafaza okushisayo (ukufuthwa kwe-aluminium / ukufuthwa kwe-zinc) kuletha ukusebenza okulingana nokufaka ugesi oshisayo futhi kuveza ukuguquguquka okungcono kobukhulu bezingxenye, okulungele amalungu ensimbi akhethekile kanye nezindawo ezigqwala kakhulu.

(3) Ukuvikelwa kwe-Cathodic kuncike ezimisweni zokunqanda ukugqwala kwe-electrochemical, ezisetshenziswa kakhulu ezakhiweni zensimbi ezicwiliswe ngaphansi kwamanzi noma ezigqitshwe ngaphansi komhlaba. Izinhlelo ezintsha zokuvikela eziyinhlanganisela zisebenza njengezinye izinketho ezingaphezu kwezisombululo ezivamile, njengezingubo ezididiyelwe zokunqanda ukugqwala nokumelana nomlilo kanye nama-graphene heavy-duty anti-corrosion coatings.

Multi-Layer Spray Coating System

I-spray coating anti-corrosion system yezakhiwo zensimbi yakha izambatho zokuzivikela ezinezingqimba eziningi ezindaweni ezingaphansi kwezingxenye ezinemisebenzi ehlukene, ehlukaniswe ikakhulukazi ibe yizingqimba ezintathu: i-primer, ijazi eliphakathi kanye ne-topcoat. I-primer isebenzela ukuvikela ukunamathela nokugqwala. I-primer ecebile ye-epoxy zinc enokuqukethwe kwe-zinc engekho ngaphansi kuka-70% ivame ukusetshenziswa. I-primer ecebile nge-zinc ye-inorganic ingenye indlela, nokho ukujiya kwayo kwefilimu eyomile kudinga ukulawula okuqinile. Ijazi eliphakathi le-epoxy micaceous iron oxide lisetshenziselwa ungqimba oluphakathi, futhi i-aliphatic polyurethane topcoat noma i-fluorocarbon topcoat yamukelwa njengejazi lokuqeda. Zonke izinqubo zohlelo lokufafaza zizoqedwa efekthri efanayo ukuze kuqinisekiswe ukwakhiwa okuzinzile kanye nokusebenza okuthembekile kokunqanda ukugqwala.

I-galvanizing

I-galvanizing ihlukaniswe i-hot-dip galvanizing kanye ne-electro-galvanizing (i-galvanizing evamile). I-hot-dip galvanizing (igama eligcwele: i-hot-dip galvanization) yakha i-zinc evikelayo ngokucwilisa insimbi kubhavu we-zinc encibilikisiwe. Ifaka ungqimba oluqinile lwezinc olusuka ku-65μm kuya ku-200μm. Ngokumelana nokugqwala okuvelele, impilo ende yesevisi, ukunamathela okuqinile kanye nenqubo elula, inobubi bokubukeka okumaphakathi futhi ifanele izingxenye ezinkulu zesakhiwo. Electro-galvanizing deposits zinc coating esekelwe isimiso electrolysis. I-zinc layer yayo incane kakhulu, ngokuvamile i-20μm kuya ku-30μm. Inomphumela omuhle wokuhlobisa nokho inqubo yokukhiqiza eyinkimbinkimbi, esebenza ezingxenyeni ezincane ezinembayo noma izakhiwo ezidinga ukuvikelwa okulwa nokugqwala okukhanyayo.

Ukuvikelwa kokugqwala kweama-workshops esakhiwo sensimbiiqala ngokuqinisekisa isigaba sokugqwala sendawo yokusebenza, ukuqedela ukulungiswa kwendawo efanelekile nokukhetha ikhambi elifanele lokulwa nokugqwala. Njengomkhiqizi wesakhiwo sensimbi ochwepheshe, i-EHSS inobungcweti obujulile bazo zonke izinqubo zokulwa nokugqwala futhi ingakusiza ekukhetheni amasistimu okuvikela ukugqwala okonga izindleko kanye nokusebenza kahle kakhulu.