Preliminary treatment of steel plates before enamelling with use of bacteria

• Main Authors: Nižník, Štefan, Kaduková, Jana, Mražíková, Anna
• Format: Patent
• Language: English; Slovak
• Published: 04.02.2020
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY

The preliminary treatment of steel plates before enameling with use of germs takes place in a pickling bath containing 0.1 - 0.2 % by weight of sulphur acid having 30 - 35 °C to which acidophilic germs are added. The pickling solutions is bubbled with air during the treatment. Spôsob predprípravy oceľových plechov a oceľových výliskov pred smaltovaním s použitím baktérií sa uskutočňuje v moriacom kúpeli 0,1 - 0,2 hmotn. % kyseliny sírovej s teplotou 30 - 35 °C, do ktorej boli pridané acidofilné baktérie Acidithiobacillus ferooxidans a Acidithiobacillus thiooxidans. Počas procesu sa moriaci roztok prebubláva vzduchom.