Yam dab tsi cuam tshuam rau kev sib txig ntawm Zinc Txheej Thickness?

Yam dab tsi cuam tshuam rau kev sib txig ntawm Zinc Txheej Thickness?
Qhov kev sib txuam ntawm Zinc Txheej Thickness yog qhov taw qhia tseem ceeb rau kub - dip galvanizing (xws li SGCC cov ntawv txheeb). Nws cov kev sib tw yog cuam tshuam los ntawm ntau yam, suav nrog cov txheej txheem tsis, substrate mob, thiab cov khoom siv. Tshwj xeeb, lawv muaj raws li hauv qab no:
1. Substrate Degrectment Zoo
Nto huv: yog tias lub substrate (txias {{{rolled steel ntawv, "" (xeb, "lossis" npuas). Piv txwv li, yog tias nplai tsis tshem tawm tag nrho, cov tshuaj tiv thaiv ntawm zinc thiab substrate yog tab sis ua rau muaj qhov zinc co nruj me me hauv qee thaj chaw.
Deg nto fab: ntau dhau kev du lossis tsis ncaj roughened substrate thaj chaw tuaj yeem cuam tshuam zinc wettability thiab adhesion. Ntau dhau smoontness tuaj yeem ua rau tsis ncaj zinc coating txuam rau qee thaj chaw; kev ntxhib ntau dhau los yog lub pits tuaj yeem ua rau zinc txheej rau hauv cov no xaim- kub galvanizing txheej txheem
Zinc da dej kub: Ntau dhau molten zinc Kub (qib 440-460 degree) accelerly cov tshuaj tiv thaiv ntawm kev loj hlob thiab tsis xwm yeem txheej txheej kev loj hlob. Ntau dhau ntawm cov zinc kub tsawg hauv cov tsis txaus ntseeg, ua rau nws nyuaj rau cov npoo av, ua rau "sagging" lossis permning "lossis permning" lossis permning "lossis ib cheeb tsam li thinning.
Lub sijhawm DIP: Lub sijhawm luv luv tiv thaiv txaus zinc {{}} substrate cov tshuaj tiv thaiv, uas ua rau tag nrho cov txheej toinc txheej thiab muaj peev xwm tsis sib xws zinc txheej. Ntev dhau ib lub sij hawm ua rau cov txheej alloy los ua kom nruj dhau, muaj peev xwm ua rau emnenly ua rau sawv los yog cov ces kaum vim muaj kev xav ntau dua.
Zinc da dej lub kaum sab xis thiab nrawm: tsis txaus siab qaij (piv txwv li ntau dhau lawm tuaj yeem ua rau muaj kev cuam tshuam saum npoo av, tiv thaiv kom zoo admesion ntawm zinc txheej. Qaum dhau nrawm tuaj yeem ua rau muaj cov zos tshaj - dip galvanizing thiab ntau} dinc cov kua muaj zog thiab flucity
Zinc kua kua purity: ntau dhau ntawm impurities xws li hlau (fe), thiab tin) nyob rau hauv cov kua dinc muaj peev xwm txo nws cov xim. Piv txwv li, cov ntsiab lus hlau ntau tshaj li 0.03% tuaj yeem yooj yim tsim tau yooj yim, ua rau cov kab mob khov kho, ua rau "gradey" txheej los yog ib cheeb tsam tuab voliations.
Alloying Elixing Ntxiv: Qee cov txheej txheem ntxiv cov ntsiab xws li txhuas (al) los txhim kho cov zinc kua cov khoom (piv txwv li, kom txo cov hlau sib cais). Txawm li cas los xij, ntau cov ntsiab lus ntau dhau (saum 0.2%) tuaj yeem inhibit zinc txheej nplaum, tshwj xeeb yog pom ntawm cov npoo ntawm cov hlau phaj lossis Welds.
4. Hlau phaj zoo thiab qhov ntev
Geometry: Thaum lub sij hawm plinc txheej yog feem ntau thicker ntawm cov npoo, lub qhov ntawm cov steel phaj vim yog "ntug ntom ntom ntom lossis cov tshuaj tiv thaiv kab mob). Tsis tas li ntawd, huab cua cuab sab hauv grooves thiab fab tiv thaiv cov zinc kua los ntawm cov txheej, ua rau muaj cov thincesized thinning. Thickness thiab dav: thaum cua sov tuab cov paib, qhov ntsuas kub yuav tsis sib xws (piv txwv li cov txheej txheem kub ua ntej cov txheej txheem kub, ua rau sib txawv ntawm cov txheej txheem zinc. Yog tias cov phiaj hlau dav dav los yog tso tseg tsis ruaj khov nyob rau hauv da dej
5. Post -} galvanizing txheej txheem
Cov riam cua tswj: Tom qab kub} {}}}}}}} kub siv los tswj cov txheej zinc ntau. Tsis sib haum siab, lub kaum ntse ntse, lossis ntau dhau los ntawm cov phaj steel tuaj yeem ua rau qhov tsis sib xws rau qhov chaw, thinner hauv cov npoo, lossis streaky variations).
Tus nqi cua txias: ntau dhau sai lossis tsis sib xws tom qab galvanizing ntawm zinc txheej ntawm cov solicness Impurities nyob rau hauv cov dej txias kuj tseem ua raws li lub zinc txheej saum npoo, cuam tshuam tuab kev txiav txim thaum xeem ntawv thiab kev ua haujlwm ruaj khov thiab kev ua haujlwm
Cov ntawv ntau lawm ua haujlwm ruaj khov: yog tias cov khoom siv dab dej tsis khov, qhov no tuaj yeem ua rau cov khoom siv tog zaum zinc
Kev ua haujlwm yam ua haujlwm: Thaum lub sijhawm ua haujlwm hloov kho kom yooj yim, thiab lwm yam kev tsis sib xws, thiab tuaj yeem ua rau kev hloov pauv ntawm Zinc Txheej Txheej Txheem.
Hauv cov ntsiab lus, zinc txheej thickness uniformity yog qhov tshwm sim ntawm tag nrho kub - dip pretreatment mus rau postrecticment mus rau postrecticment mus rau postrecieting {}} galvanizing kho). Kev tswj nruj txheej txheem cov txheej txheem, cov khoom siv kom zoo, thiab ua kom cov qauv corrosion thiab kom cov ntawv txheeb ntawm SGCC cov ntawv txheeb.