Vol.2, No 4, 2002 pp. 215 - 221
UDC 665.7.038.5 : 661.862
THE STUDY OF STEEL PROTECTION EFFECT
BY APPLICATION OF MOLTEN ACTIVE MICROALLOYED
ALUMINUM AND BY COVERING THAT COMPOSITION
BY ORGANIC COATING
Milovan Purenović, Milena Miljković, Aleksandra Zarubica
Faculty of Natural Sciences and Mathematics, Department of Chemistry,
University of Niš, Višegradska 33, 18000 Niš, Serbia and Montenegro
Abstract. In this paper, the steel active-passive anticorrosive
protection was done. Steel plates samples with dimensions 40x100x2 millimeters
were used. Samples surfaces preparation was done by degreasing, then by
sandblasting by pneumatic pistol. The metallising by molten metal was done
by hand pistol, which worked with metal vein "Protector" (? 3,18 millimeters)
of electrochemical active anode material on the basis of microalloyed aluminum.
The mentioned application was done twice and obtained layer thickness was
150-200 micrometers. After this operation, organic coating "Vinilpom",
the product of Coatings Industry "Pomoravlje", was applied. Coating quality
was followed by measuring of coating thickness, of dried film hardness,
level of connecting with a base and of gloss. Whole composition steel -
"Protector" -organic coating electrochemical study was done by measuring
of galvanic team electrochemical potential change in 20% NaCl solution,
during the time.
Key words: active-passive protection, active microalloyed
aluminum, steel samples, organic coating
ISPITIVANJE EFEKTA ZAŠTITE ČELIKA
PRIMENOM AKTIVNOG MIKROLEGIRANOG ALUMINIJUMA PREKRIVANJEM KOMPOZITA ORGANSKIM
PREMAZOM
U ovom radu je izvršena aktivno-pasivna antikoroziona zaštita čelika. Korišćeni
su uzorci čelika-pločice dimenzija 40x100x2 milimetara. Preprema površina
uzoraka je izvršena odmašćivanjem, a zatim peskarenjem pneumatskim pištoljem.
Metaliziranje tečnim metalom je urađeno ručnim pištoljem, koji je radio
sa metalnom žicom "Protector"(? 3.18 mm) elektrohemijski aktivnog anodnog
materijala na bazi mikrolegiranog aluminijuma. Pomenuti postupak je izvršen
dva puta a dobijena debljina sloja je 150-200 mikrometara. Posle ove operacije,
naneto je organsko premazno sredstvo "Vinilpom", proizvod Industrije boja
i lakova "Pomoravlje". Kvalitet premaza je praćen merenjem debljine prevlake,
tvrdoće suvog filma premaza, adhezije i sjaja. Elektrohemijsko ispitivanje
celog kompozita čelik-"Protector"-organski premaz je urađeno merenjem promene
elektrohemijskog potencijala galvanskog sprega u 20 % rastvoru NaCl sa
vremenom.
Ključne reči: aktivno-pasivna zaštita, aktivni mikrolegirani
aluminujum, uzorci čelika, organski premaz
