I-galvanizing ibhekisela kubuchwepheshe bokwelapha obungaphezulu bokunamathisela ungqimba lwezinki phezu kwensimbi, ingxubevange noma enye into ukuze kudlale umphumela wokuvikela ubuhle nokugqwala.Indlela eyinhloko esetshenziswayo i-hot-dip galvanization.
I-Zinc incibilika kalula kuma-acids kanye ne-alkali, ngakho ibizwa ngokuthi insimbi ye-amphotropic.Izinc ishintsha kancane kakhulu emoyeni owomile.Emoyeni oswakeme, kwakheka ifilimu eliminyene le-alkaline zinc carbonate endaweni engaphezulu ye-zinc.Ku-sulphur dioxide, I-hydrogen sulfide ne-Marine emkhathini, ukumelana nokugqwala kwe-zinc kubi, ikakhulukazi emazingeni okushisa aphezulu kanye nomswakama ophezulu oqukethe umkhathi we-organic acid, i-zinc enamathela kulula ukugqwala. Amandla we-electrode ajwayelekile we-zinc ngu-0.76V, we-matrix yensimbi, ukunamathela kwe-zinc kungokwe-anodic coating, kusetshenziselwa ikakhulukazi ukuvimbela ukugqwala kwensimbi, ukusebenza kwayo okuyisivikelo kanye nokuqina kokunamathela kuhlobene kakhulu. ukwelashwa kwe-passivation, ukugcoba noma ukumbozwa nge-ejenti yokuzivikela ekhanyayo, kungathuthukisa kakhulu ukuvikela nokuhlobisa kwayo.
Ukubanda okubandayo
I-Cold galvanizing, ebizwa nangokuthi i-electrogalvanizing, ukusetshenziswa kwemishini ye-electrolytic ngemva kukawoyela, ukucosha, usawoti we-zinc esixazululweni, nokuxhuma i-electrode engeyinhle yezinto zokusebenza ze-electrolytic, ngokuphambene nepuleti le-zinc, elixhunywe ku-electrode eqondile ye-electrolytic. amandla emishini, kusetshenziswa okwamanje kusuka kokuhle kuya kokubi kuzofaka ungqimba lwe-zinc epayipini, ipayipi lokucwenga elibandayo licutshungulwa okokuqala ngemuva kokufaka uthayela.
Umakhenikha ukhanyiswe
Esigubhini esizungezayo esifakwe i-plating, ibhola lengilazi, impushana ye-zinc, amanzi kanye nephromotha, ibhola lengilazi njengokuthinta okuphakathi lizungeza nesigubhu, ukungqubuzana nesando phezu kwendawo yokucwenga likhiqiza amandla angokomzimba.Ngaphansi kwesenzo somgqugquzeli wamakhemikhali, i-zinc powder eboshiwe "i-welding ebandayo" endaweni yokugqoka, yakha ukunamathela okubushelelezi, okufaniswayo nokunemininingwane enobukhulu obuthile.
Okushisayo-kukhanyiswe
Indlela eyinhloko yokwenza ipuleti lensimbi elicwebezelisa phezulu iwukuba ucwebezele.
Ukufakwa kukatha okushisayo kwasungulwa ngezindlela zakudala futhi sekuneminyaka eyikhulu namashumi ayisikhombisa kusukela kwasetshenziswa embonini ngo-1836.Nokho, imboni yamagalani ediphu ashisayo iye yathuthukiswa ngezinga elikhulu kanye nokuthuthukiswa okusheshayo kwensimbi egoqekayo ebandayo. eminyakeni engamashumi amathathu edlule.
Inqubo yokukhiqiza ipuleti elishisayo elinothayela ikakhulukazi lihlanganisa: ipuleti lokuqala langaphambi kokugcoba idiphu elishisayo ngemva kokwelashwa liqediwe ukuhlolwa komkhiqizo, njll.Ngokomkhuba, ngokwendlela ehlukene yokwelapha yokucwenga, inqubo yokufaka idiphu eshisayo ihlukaniswe umugqa wangaphandle. kanye ne-annealing yangaphakathi komugqa.
Isikhathi sokuthumela: May-13-2022