Cov txheej txheem ntau lawm ntawm cov coil lojgalvanized hlauyog qhov yooj yim.Cov hlau tom qab ntxuav yog muab tso rau hauv cov tshuaj electroplating ua ntej.Tau kawg, cov tshuaj plating yuav tsum muaj zinc oxide, ib qho ncaj qha tam sim no ntawm cov hlau, lwm cov zinc phaj hauv cov tshuaj plating.Cov zinc yog pauv mus rau saum npoo ntawm cov hlau ua ib qho molecule.Yog tias nws pom cov xim ci thiab zoo nkauj, cov hlau yog coated nrog zinc.
Lub sijhawm tiv thaiv ntawm galvanized hlau hlau yog ze ze rau lub thickness ntawm galvanized hlau hlau.Feem ntau, zinc txheej thickness yuav tsum siab heev nyob rau hauv qhuav lub ntsiab gas thiab sab hauv tsev siv, tab sis nyob rau hauv ib puag ncig hnyav.Yog li ntawd, nyob rau hauv kev xaiv ntawm galvanized txheej thickness, qhov cuam tshuam ntawm ib puag ncig yuav tsum tau xav txog.Yog hais tias galvanized hlau hlau cov khoom ntawm txawv diameters yuav tsum tau, cov khoom xaiv thiab txheej yuav tsum tau tswj kom tsim nyog.
Peb lub teb chaws kev lag luam xaiv cov pa roj carbon tsawg nrog cov khoom zoo li cov khoom siv raw, thiab tom qab ntawd tsim cov hlau zoo galvanized hlau los ntawm kev kos duab, galvanizing thiab lwm yam txheej txheem.Tam sim no cov khoom siv technology ntawmgalvanized hlau hlaucov khoom tuaj yeem muab faib ua kub plating thiab electroplating ob hom kev.Tsis muaj teeb meem dab tsi yog xaiv, nws yuav tsum tau ua raws li cov lus qhia ua haujlwm sib xws, txhawm rau ua kom zoo dua cov khoom lag luam zoo.Rau qhov tseem ceeb thiab qhov tseem ceeb nrog lub zog tensile ntau dua 1034mpa ua ntej plating, qhov kev ntxhov siab yuav tsum raug tso tawm ntawm 200 ± 10 ℃ rau ntau tshaj 1 teev thiab 140 ± 10 ℃ ua ntej plating.
Tus neeg saib xyuas siv los ntxuav tsis muaj kev cuam tshuam rau qhov adhesion ntawm txheej thiab tsis muaj corrosion ntawm cov khoom siv hauv paus.Acid activation Acid activation tov yuav tsum muaj peev xwm tshem tawm cov khoom siv corrosion thiab oxide zaj duab xis los ntawm qhov chaw ntawm qhov chaw uas tsis muaj corrosion ntau dhau ntawm cov matrix.Zinc plating tej zaum yuav zinc plated nrog zincate lossis chloride thiab cov khoom siv ntxiv yuav tsum tau siv kom tau txais cov txheej txheem uas ua tau raws li cov qauv no.Tom qab lub teeb plating, kev kho lub teeb yog nqa tawm.Passivated qhov yuav tsum tau tshem tawm hydrogen yuav tsum passivated tom qab tshem tawm hydrogen.Ua kom muaj 1% H2SO4 lossis 1% hydrochloric acid rau 5 ~ 15s ua ntej passivation.
Post lub sij hawm: 20-07-22