I-Electrogalvanizing VS. I-Hot-dip Galvanizing

Ngokwezibalo, insimbi kulula ukugqwala emoyeni, emanzini noma enhlabathini, futhi ukulahlekelwa konyaka okubangelwa ukugqwala kubala cishe i-1/10 yengqikithi yokukhiqizwa kwensimbi. Ukuze wenze ubuso be-fasteners bube nemisebenzi ethile ekhethekile futhi bunikeze ukubukeka kokuhlobisa, ngokuvamile baphathwa nge-electrogalvanizing.

I-Electrogalvanizing

I-Electrogalvanizing inqubo efaka i-zinc coating ensimbi noma yensimbi ngokusebenzisa amandla kagesi. Umgomo uhilela ukucwiliswa kwengxenye ezogcotshwa ibe yisisombululo esiqukethe ama-zinc ions. Lapho amandla kagesi edlula ku-electrolyte, ama-ion e-zinc ayancishiswa ebusweni be-cathode, abeke ungqimba oluncane lwe-zinc ehlanzekile. Ukujiya nokufana kwe-coating kungalawulwa ngokunembile ngokulungisa ubude benqubo, ukuminyana kwamanje, nokwakheka kwe-electrolyte. Le ndlela ivumela isiphetho esikhanyayo, esibushelelezi, futhi esibukeka kahle, esinezimbozo ngokuvamile ezisukela kuma-micrometer angu-5 kuya kwangu-30.

Izici zokusebenza ze-electrogalvanized coatings zifaka ukunamathela okuhle kwesisekelo sensimbi, okunikeza ukumelana nokugqwala okuhle, ikakhulukazi ezindaweni ezinolaka olungatheni. Iyunifomu nokuqina okulawulwayo kuqinisekisa ukubukeka okungaguquki, okuyenza ifaneleke ezingxenyeni lapho kudingeka khona ukuqedwa kwekhwalithi ephezulu. Kodwa-ke, ukunamathela okuzacile uma kuqhathaniswa kusho ukuthi i-electrogalvanizing ingase inganikezi izinga elifanayo lokuvikelwa komshini njenge-hot-dip galvanizing, futhi ingase ibe lula ekulimaleni okubangelwa ukuhuzuka nomthelela. Naphezu kwalokhu, le nqubo iyaziwa ngekhono layo lokukhiqiza inhlawulo, ngisho nokugqoka okuthuthukisa ukukhanga okubonakalayo komkhiqizo ophelile.

Izinkambu ezihilelekile ekwenzeni i-electrogalvanizing ziya ngokuya ziba zibanzi. Ukusetshenziswa kwemikhiqizo yezinsimbi sekusabalele ekukhiqizeni imishini, izinto zikagesi, amathuluzi anembayo, amakhemikhali, ezokuthutha, i-aerospace, njll., okubaluleke kakhulu emnothweni wezwe.

I-hot-dip galvanizing

I-Hot-dip galvanizing iyinqubo yokuvikela ukugqwala lapho izingxenye zensimbi ezihlanziwe futhi ezilungisiwe noma zensimbi zicwiliswa kubhavu we-zinc encibilikisiwe cishe ku-450°C (842°F). I-zinc ihlangana ne-iron, yakhe uchungechunge lwezingqimba ze-zinc-iron alloy ebusweni bensimbi, kulandelwa ungqimba lwezinc ehlanzekile. Lesi sibopho se-metallurgical sidala ukunamathela okuqinile nokunamathela ngokuqinile. Ugqinsi lwe-zinc enamathela luyazilawula futhi ngokuvamile lusuka kuma-micrometer angu-45 kuya ku-275, kuye ngokujiya kwezinto eziyisisekelo. Isikhathi sokucwiliswa kanye nezinga lokupholisa ngemva kokususwa ebhavini kungathonya ukubukeka nokuthungwa kwe-coating yokugcina, ngokuvamile okuholela kusici sephethini e-spangled noma yekristalu.

Izici zokusebenza zamathayela we-hot dip zihlanganisa ukuqina okukhethekile kanye nokumelana nokugqwala kwesikhathi eside, okungahlala amashumi eminyaka ngisho nasezimweni ezinzima. Isendlalelo se-zinc esiwugqinsi sinikeza ukuvikeleka okuqinile ekulimaleni komshini, okufana nokuklwebheka nemihuzuko, futhi kusebenza njenge-anode yomhlatshelo, ukugqwala ngokukhethekile ukuze kuvikelwe insimbi engaphansi. Ukugqoka nakho kunokumelana okuhle kwezinga lokushisa, nakuba kungase kuthinteke amazinga okushisa aphezulu kakhulu. Ukubukeka okumpunga kokuqala okukhanyayo, okwensimbi kwe-coating kuzoba nesimo sezulu ngokuhamba kwesikhathi ku-patina ye-matte grey, engakhihlisi izakhiwo zayo zokuzivikela. Ukwengeza, le nqubo ingabizi kakhulu ezintweni ezinkulu nezisindayo, njengoba inikeza isisombululo esihlala isikhathi eside esidinga ukulungiswa okuncane.

I-hot-dip galvanizing isetshenziswa kakhulu ezinhlelweni ezahlukahlukene, ikakhulukazi lezo ezibandakanya izakhiwo zangaphandle nengqalasizinda, lapho ukuchayeka kuzinto kubalulekile. Ivamise ukusetshenziselwa insimbi yesakhiwo, amabhuloho, izinsimbi zokuqapha zomgwaqo onguthelawayeka, izigxobo ezisetshenziswayo, nezinye izinto zokwakha. Le ndlela idumile futhi ekukhiqizeni izinto zokusebenza zezolimo, imishini yezimboni, nezinhlelo zokuthutha, okuhlanganisa amathrekhi kaloliwe neziqukathi zemikhumbi. Ngenxa yekhono lakhona lokunikeza isiphetho esiqinile, esihlala isikhathi eside, futhi esamukelekayo ngobuhle, i-hot-dip galvanizing iyinketho ekhethwayo yanoma yiluphi uhlelo lokusebenza oludinga ukuvikeleka okuthembekile nokuhlala isikhathi eside ekugqwaleni.

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