Fasteners yog cov feem ntau yooj yim, feem ntau kuj hu ua "standard parts".Rau qee cov fasteners nrog lub zog siab thiab precision, kev kho saum npoo yog qhov tseem ceeb tshaj li kev kho cua sov.Txhua yam ntawm fasteners siv nyob rau hauv ib tug loj tus naj npawb ntawm cov cuab yeej siv, yuav luag tag nrho cov yuav tsum tau sib sau ua ke tom qab kev kho deg, thiaj li yuav ua tau anticorrosion, kho kom zoo nkauj, hnav tsis kam, txo kev sib txhuam coefficient thiab lwm yam teebmeem, thiab inorganic nto kho electrogalvanizing thiab kub galvanizing yog. cathodic tiv thaiv txheej tshuab.
Lub hauv paus ntsiab lus ntawm electrogalvanizing steel fastener cov khoom yog kev siv cov electrolysis, tsim cov uniform, ntom, zoo-combined hlau los yog alloy deposition txheej nyob rau saum npoo ntawm lub workpiece, tsim ib txheej txheej ntawm cov hlau nto, thiaj li. ua tiav kev tiv thaiv ntawm steel txheej txheem corrosion.Yog li ntawd, electrogalvanized txheej yog kev taw qhia txav los ntawm qhov zoo electrode mus rau qhov tsis zoo electrode siv tam sim no.Zn2 + nyob rau hauv cov electrolyte yog nucleated, zus thiab tso rau ntawm lub substrate nyob rau hauv qhov kev txiav txim ntawm lub peev xwm los tsim ib tug galvanized txheej.Hauv cov txheej txheem no, tsis muaj txheej txheem diffusion ntawm zinc thiab hlau.Los ntawm kev soj ntsuam microscopic, nws yuav tsum yog txheej zinc ntshiab.Nyob rau hauv cov ntsiab lus, kub dip galvanized hlau-zinc alloy txheej thiab ntshiab zinc txheej, thiab galvanized tsuas yog ib txheej ntawm ntshiab zinc txheej, yog li, nrog hlau-zinc alloy txheej los ntawm txheej yog tsuas yog raws li kev txheeb xyuas ntawm txheej txheej, haum rau galvanized fasteners, steel hlau, steel yeeb nkab thiab lwm yam khoom.Metallographic method thiab XRD method yog siv los xyuas cov txheej txheem kom paub qhov txawv ntawm electrogalvanizing thiab kub galvanizing, thiab muab kev taw qhia rau kev tsom xam tsis ua hauj lwm.
Muaj ob txoj hauv kev los txheeb xyuas electrogalvanizing thiab kub galvanizing txheej.Ib qho yog txoj kev metallographic: txoj kev metallographic tsis txwv los ntawm cov ntsiab lus ntau thiab cov qauv loj, thiab tsim nyog rau txhua yam khoom siv electrogalvanizing thiab kub galvanizing.Lwm qhov yog X-ray diffraction txoj kev: muaj feem xyuam rau txoj kab uas hla ntawm ntau tshaj 5 hli plating bolts thiab ceev hauv lub dav hlau hexagonal;Sab nraud txoj kab uas hla yog ntau dua 8 hli steel yeeb nkab nto radian cov khoom, kom ntseeg tau tias cov qauv tuaj yeem ua rau qhov tsawg kawg nkaus ntawm 5mm × 5mm nto tiaj tus qauv, thiab txhua yam khoom siv txheej.Muaj peev xwm paub meej tias cov qauv siv lead ua ntawm cov ntsiab lus txheej ≥5% theem.Cov qauv nrog tuab tuab ntshiab zinc deposits tsis haum rau X-ray diffraction.
electrogalvanizing
kub galvanizing txheej
Post lub sij hawm: Sep-15-2022