Izindaba

I-hot galvanizing, eyaziwa nangokuthi i-hot-dip galvanizing kanye ne-hot-dip galvanizing, iyindlela ephumelelayo yokuvikela ukugqwala kwensimbi, esetshenziselwa ikakhulukazi izakhiwo zensimbi nezinsiza ezimbonini ezihlukahlukene. Kuwubuchwepheshe benqubo yokuthola ukunamathela ngokucwilisa insimbi, insimbi engagqwali, insimbi ecijile nezinye izinsimbi zibe insimbi encibilikisiwe ye-liquid noma i-alloy. Kuyindlela yokwelapha yensimbi esetshenziswa kabanzi esebenza kangcono kanye nentengo emhlabeni namuhla. Imikhiqizo efakwe uthayela we-hot-dip idlala indima engenakulinganiswa nengenakushintshwa ekwehliseni ukugqwala nokwelula impilo, ukonga amandla nezinto zensimbi. Ngesikhathi esifanayo, insimbi eboshwe iphinde ibe umkhiqizo wesikhashana onenani eliphakeme elingeziwe elisekelwa futhi libekwe phambili nguhulumeni.
Inqubo yokukhiqiza
Ukukhiqizwa kanye nokucutshungulwa kwekhoyili yensimbi ethathiwe kungahlukaniswa ngezinyathelo ezintathu ezinkulu: okokuqala, yonke ikhoyili yensimbi yomugqa izocoliswa ukuze kukhishwe ukugqwala kanye nokususwa kokungcola ukuze kwenziwe ubuso bensimbi obuthathiwe bukhanye futhi buhlanzeke; Ngemva pickling, kufanele bahlanze ammonium chloride noma zinc chloride isixazululo aqueous noma ammonium chloride kanye zinc chloride exutshwe isixazululo aqueous, bese ithunyelwa okugeza ashisayo dip for inqubo galvanizing; Ngemuva kokuthi inqubo yokufaka ama-galvanizing isiqediwe, ingagcinwa futhi ihlanganiswe.

Umlando wokuthuthukiswa we-galvanizing eshisayo
I-hot galvanizing yasungulwa phakathi nekhulu le-18. Yasungulwa kusukela enqubweni yokufaka amathini ashisayo futhi isingene ekhulwini lesine. Kuze kube manje, i-hot-dip galvanizing kuseyinqubo esetshenziswa kabanzi futhi esebenza ngempumelelo ekuvimbeleni ukugqwala kwensimbi.
Ngo-1742, uDkt. Marouin wenza umzamo wokuqala wokwenza insimbi yokufaka idiphu eshisayo futhi wayifunda eRoyal College of France.
Ngo-1837, i-Sorier yase-France yafaka isicelo selungelo lobunikazi le-hot-dip galvanizing futhi yabeka phambili umqondo wokusebenzisa indlela ye-galvanic cell ukuvikela insimbi, okungukuthi, inqubo yokufaka uthayela kanye nokuvimbela ukugqwala endaweni yensimbi. Ngawo lowo nyaka, u-Crawford wase-United Kingdom wafaka isicelo selungelo lobunikazi le-zinc plating esebenzisa i-ammonium chloride njengesinyibilikisi. Le ndlela ilandelwe kuze kube manje ngemva kokuthuthukiswa okuningi.
Ngo-1931, u-Sengimir, unjiniyela ovelele kakhulu embonini yesimanje yensimbi, wakha umugqa wokukhiqiza oqhubekayo womhlaba wokucwilisa oshisayo we-strip steel ngendlela yokunciphisa i-hydrogen ePoland. Le ndlela yayinelungelo lobunikazi e-United States kanye nolayini wokukhiqiza we-hot-dip galvanizing wezimboni oqanjwe nge-Sengimir wakhiwa e-United States kanye ne-Maubuge Iron and Steel Plant e-France ngo-1936-1937, ngokulandelana, ukudala inkathi entsha yokuqhubekayo, ephezulu- isivinini kanye nekhwalithi ephezulu ye-hot-dip galvanizing ye-strip steel.
Ngawo-1950 nawo-1960, i-United States, iJapane, iBrithani, iJalimane, iFrance, iCanada namanye amazwe akhiqiza amapuleti ensimbi e-aluminiized.
Ekuqaleni kwawo-1970, iBethlehem Iron and Steel Company yasungula i-Al-Zn-Si coating enegama lokuhweba elithi Galvalume, elinokumelana nokugqwala okuphindwe izikhathi ezi-2-6 kune-zinc emsulwa.
Ngawo-1980, ingxubevange ye-zinc-nickel eshisayo yanda ngokushesha eYurophu, eMelika nase-Australia, futhi inqubo yayo yaqanjwa ngokuthi i-Technigalva Njengamanje, i-Zn-Ni-Si-Bi iye yathuthukiswa ngalesi sisekelo, engavimbela kakhulu ukusabela kweSandelin. ngesikhathi sokushisa okushisayo kwensimbi ene-silicon.
Ngawo-1990, i-Japan Nisin Steel Co., Ltd. yakha i-zinc-aluminium-magnesium-coating material enegama lokuhweba le-ZAM, ukumelana kwayo nokugqwala okuphindwe izikhathi ezingu-18 kune-zinc yendabuko, ebizwa ngokuthi isizukulwane sesine sokugqwala okuphezulu. ukumelana ne-coating material.

Izici zomkhiqizo
·Inokumelana nokugqwala okungcono nempilo ende yesevisi kuneshidi eligoqiwe elibandayo;
·Ukunamathela okuhle nokushisela;
Izinhlobonhlobo zezindawo ezikhona ziyatholakala: i-flake enkulu, i-flake encane, ayikho i-flake;
·Izindlela zokwelapha ezihlukene zingasetshenziselwa ukwehlisa, ukugcoba, ukuqeda, ukuvikela imvelo, njll;
Ukusetshenziswa komkhiqizo
Imikhiqizo efakwe idiphu eshisayo isetshenziswa kabanzi emikhakheni eminingi. Izinzuzo zabo ukuthi zinempilo ende yokulwa nokugqwala futhi zingakwazi ukuzivumelanisa nezimo ezihlukahlukene. Selokhu kwathi nhlo bekuyindlela edumile yokwelapha i-anti-corrosion. Isetshenziswa kabanzi embhoshongweni wamandla, umbhoshongo wokuxhumana, ujantshi, ukuvikelwa komgwaqo omkhulu, isigxobo sesibani somgwaqo, izingxenye zasolwandle, izingxenye zesakhiwo sensimbi, izikhungo ezisizayo, imboni yokukhanya, njll.