METHOD FOR MANUFACTURING MINI-SPANGLE GALVANIZED STEEL WITH AN EXCELLENT DETACHABILITY OF AGEING RESISTANCE

The method includes the steps of; (a) galvanizing the steel plate in galvanizing solution bath containing 0.006-0.06 wt% Pb; (b) making mini spangle by spraying dihydrogen ammonium phosphate with pH 4.5-5.5 before solidifying molten zinc on the steel plate. The treated steel shows below 0.65 Pm lumi...

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Bibliographic Details
Main Authors SHIN, JUNG - CHOL, CHON, SUN - HO, YUN, JAE - WOONG, KIM, JONG - SANG
Format Patent
LanguageEnglish
Korean
Published 20.06.1996
Edition6
Subjects
CHEMICAL SURFACE TREATMENT
CHEMISTRY
COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
COATING MATERIAL WITH METALLIC MATERIAL
COATING METALLIC MATERIAL
DIFFUSION TREATMENT OF METALLIC MATERIAL
INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL
METALLURGY
SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Summary:The method includes the steps of; (a) galvanizing the steel plate in galvanizing solution bath containing 0.006-0.06 wt% Pb; (b) making mini spangle by spraying dihydrogen ammonium phosphate with pH 4.5-5.5 before solidifying molten zinc on the steel plate. The treated steel shows below 0.65 Pm luminous intensity and above 120 gloss intensity, has good peeling resistance.
Bibliography:Application Number: KR19930028645