Cov ntaub ntawv tshwj xeeb yog siv rau cov txheej txheem tshwj xeeb. Piv txwv li, galvanized ntiv tes tiv thaiv cov khoom siv tsis tuaj yeem siv rau hauv cov txheej txheem electrophoretic, uas yuav ua rau cov khoom electrophoretic yuav tsum tau muab pov tseg. Yuav ua li cas kom paub sai sai seb puas muaj pob tshab txheej ntawm cov khoom siv galvanized yog ib qho txuj ci tseem ceeb heev.
Passivation, ntiv tes tiv thaiv thiab lwm txoj kev kho mob tom qab yog siv cov xim tsis muaj xim thiab pob tshab tom qab kho cov yeeb yaj kiab ntawm galvanized substrate, uas nyuaj rau kev txheeb xyuas qhov pom. Muaj ntau txoj hauv kev tshawb nrhiav kev tshaj lij, tab sis nrhiav tus nqi qis thiab siv tau zoo yog peb lub hom phiaj.
Cov kev sim rau kev sim tshuaj
1. Kev tsom xam
Lub ntsiab ntawm cov ntiv tes los yog cov khoom tiv thaiv passivation yog siv cov txheej txheem organic rau ntawm galvanized substrate. Vim tias muaj cov txheej txheem, peb tuaj yeem pom cov tshuaj reagent uas ua rau cov zinc txheej es tsis txhob ntawm cov txheej, thiab nws txawv raws li qhov sib txawv ntawm cov tshuaj tiv thaiv ceev.
2. Kev sim prop - 5% tooj liab sulfate tov
Tom ntej no, peb grandly tso lub protagonist ntawm qhov teeb meem no: tooj liab sulfate tov. Yog lawm, yog tias qhov concentration tsis siab dhau, 5% concentration txaus (tsis muaj xim thiab pob tshab).
3. Kev kuaj xyuas thiab kev txiav txim
Cov tshuaj tooj liab sulfate yuav hnov mob nrog zinc txheej (Zn + CuSO4 = ZnSO4 + Cu), raws li hauv qab no:
Tso 5% tooj liab sulfate tov rau ntawm cov ntiv tes resistant lossis passivation resistant khoom, thiab cia nws sawv ntsug li 3 feeb, thiab cov tshuaj tseem pob tshab.
Tso rau ntawm daim ntawv tsis muaj galvanized thiab cia nws sawv ntsug li 3 feeb. Cov tshuaj reacts nrog zinc txheej thiab tig dub.
teeb meem xav tau kev saib xyuas
Thaum lub sijhawm ua haujlwm tiag tiag, lub phaj saum npoo yuav tsum tau muab ntxuav nrog dej cawv, txwv tsis pub cov roj residual antirust tseem yuav ncua cov tshuaj tiv thaiv ceev.
Ib lub raj mis ntawm kev daws, poob los ntawm kev poob, 5 feeb, daws txhua yam teeb meem!
Fauvist solutions
Cov saum toj no yog qhov kev daws teeb meem yooj yim tshaj plaws. Tom ntej no yog cov khoom qhuav tiag tiag. Cov tub ntxhais kawm ntawv nyeem tsis tas yuav tsis tau txais txiaj ntsig no!
Qhov tseeb, Chaige nws tus kheej tau siv txoj kev yooj yim dua thiab sai dua: tus ntiv tes txhuam txoj kev
Tom qab cov qauv phaj tau muab ntxuav kom huv, siv koj cov ntiv tes kom huv si thiab rov ua dua ntawm cov phaj saum npoo (kev sib txhuam, zoo li dab ntxwg nyoog pace ~ ~).
Cov ntiv tes blackened (nrog zinc hmoov ntog) yog uncoated galvanized nplooj ntawv. Yog tias tsis muaj qhov hloov pauv pom tseeb ntawm qhov chaw, nws qhia tau tias muaj cov txheej txheem tom qab kho.
lus hais
Txoj kev no yuav tsum muaj kev paub me ntsis, tab sis nws yog pheej yig dua thiab ntau yam. Qhov chaw tsim khoom xav tau dab tsi? Fast, yooj yim, ntxhib !!!
Post lub sij hawm: Jun-11-2022