Txheej txheem cej luam
Galvanizing, tseem hu ua kub-dip galvanizing lossis kub-dip galvanizing, yog ib txoj hauv kev zoo ntawm kev tiv thaiv kev xeb hlau, feem ntau yog siv rau cov khoom siv hlau hauv ntau qhov kev lag luam. Nws yog cov txheej txheem thev naus laus zis uas tso cov hlau xws li hlau, stainless hlau, cam khwb cia hlau, thiab lwm yam rau hauv molten kua hlau lossis alloy kom tau cov txheej txheem. Nws yog qhov siv dav tshaj plaws thiab raug nqi - txoj kev kho saum npoo zoo rau cov hlau hauv ntiaj teb niaj hnub no. Kub dip galvanized cov khoom ua si lub luag haujlwm tsis tuaj yeem thiab hloov tsis tau hauv kev txo qis corrosion, ua haujlwm ntev, thiab txuag lub zog thiab cov khoom siv rau hlau. Nyob rau tib lub sijhawm, cov hlau coated kuj yog tus nqi siab - ntxiv luv luv - cov khoom lag luam txhawb nqa thiab tseem ceeb los ntawm lub tebchaws rau kev txhim kho.
Keeb Kwm ntawm Kev Txhim Kho
Kub dip galvanizing tau tsim nyob rau hauv nruab nrab- xyoo pua 18th thiab tsim los ntawm kub-dip tin plating txheej txheem. Tam sim no nws tau nkag mus rau nws lub xyoo pua plaub. Txog tam sim no, kub-dip galvanizing tseem yog qhov feem ntau siv thiab ua haujlwm zoo rau kev tiv thaiv corrosion steel.
Xyoo 1742, Dr. Maroin tau ua qhov kev sim ua qhov kub thiab txias -dip galvanizing ntawm hlau thiab nthuav tawm lawv ntawm Royal Academy hauv Fab Kis.
Xyoo 1837, Sauriel ntawm Fabkis tau thov daim ntawv patent rau kub -dip galvanizing thiab tau thov lub tswv yim ntawm kev siv galvanic cell txoj kev los tiv thaiv hlau, uas yog txheej txheem ntawm galvanizing thiab xeb tiv thaiv ntawm hlau nto. Nyob rau hauv tib lub xyoo, Crawford nyob rau hauv UK tau thov rau ib tug patent rau galvanizing siv ammonium chloride raws li ib tug hnyav, thiab txoj kev no tau raug txhim kho tsis tu ncua mus rau niaj hnub no.
Xyoo 1931, tus kws tshaj lij tshaj lij hauv kev lag luam metallurgical niaj hnub no, tus txiv neej Polish Sengemir, tau tsim lub ntiaj teb thawj hydrogen txo qis nruam kub -dip galvanizing ntau lawm kab rau sawb hlau hauv tebchaws Poland. Txoj kev no tau patented nyob rau hauv lub tebchaws United States thiab industrial kub-dip galvanizing ntau lawm kab muaj npe tom qab Sengemir tau tsim nyob rau ntawm Maubeuge steel cog nyob rau hauv lub tebchaws United States thiab Fabkis los ntawm 1936 mus rau 1937, ushering nyob rau hauv ib tug tshiab era ntawm tas mus li, siab -ceev, thiab siab -zoo kub-dip galvanizing hlau.
Nyob rau xyoo 1950 thiab 1960, lub teb chaws xws li Tebchaws Meskas, Nyiv, Tebchaws Askiv, Lub Tebchaws Yelemees, Fabkis, thiab Canada tau ua tiav ua cov ntawv txhuas plated steel.
Thaum xyoo 1970s, Lub Tuam Txhab Bethlehem Steel tau tsim ib qho txhuas zinc silicon txheej txheej hu ua Galvalume, uas muaj kev tiv thaiv corrosion 2-6 npaug ntawm cov zinc txheej ntshiab.
Nyob rau xyoo 1980, kub-dip galvanizing nickel alloy tau nce sai heev hauv Tebchaws Europe, Amelikas, Australia thiab lwm thaj chaw, thiab nws cov txheej txheem tau hu ua Technigalva. Tam sim no, Zn Ni Si Bi tau tsim los ntawm lub hauv paus no, uas tuaj yeem cuam tshuam cov tshuaj tiv thaiv Saintelin thaum kub -dip galvanizing ntawm silicon steel.
Nyob rau xyoo 1990, Nyiv Nippon Steel Corporation tau tsim cov zinc aluminium magnesium txheej txheej hu ua ZAM, uas muaj kev tiv thaiv corrosion 18 npaug ntawm cov txheej txheem galvanized thiab yog lub npe hu ua plaub tiam ntawm cov khoom siv corrosion heev-cov ntaub ntawv txheej.
Txheej Txheem Fow
Workpiece → degreasing → dej ntxuav → acid ntxuav → dej ntxuav → immersion nyob rau hauv plating pab hnyav → ziab preheating → kub-dip galvanizing → xov → txias → passivation → yaug → ziab → tshuaj xyuas
Daim ntawv thov
Cov txheej txheem kub -dip galvanizing yog dav siv nyob rau hauv steel daim hlau, steel strips, steel hlau, steel kav, cov khoom siv, thiab cov khoom siv, thiab nws daim ntawv thov teb yog heev nthuav, xws li lub teeb kev lag luam, khoom siv hauv tsev, tsheb, kev tsim kho kev lag luam, thiab lwm yam. Nyob rau hauv lub automotive kev lag luam, nws yuav siv tau nyob rau hauv lub tsheb vaj huam sib luag, pem teb, plhaub, thiab lwm yam. Yuav siv tau rau lub plhaub thiab hauv pem teb ntawm ntau yam khoom siv hauv tsev hauv cov khoom siv hauv tsev thiab kev lag luam teeb; Hauv kev tsim kho kev lag luam, lub teeb steel keel, vaj huam sib luag hauv pem teb, corrugated board, dov lub qhov rooj, thiab lwm yam yog siv rau ntau yam kev lag luam thiab pej xeem vaj tse.
