Eniricerche S.p.a.

Henkel Kgaa

Centro Sviluppo Materiali S.p.a.

Thyssenkrupp Acciai Speciali Terni S.p.a.

Yean Demertzis

Arnaldo Roggero

Luigi Rivola

Alessandro Dulcetti

Stefano Luperi

Marco Cesari

Giovanni Vespasiani

Stefano Mantovani

Gianvincenzo Salamone

Environment-friendly process for descaling, pickling and finishing/passivating in a continuous, integrated and flexible manner, applicable to any type of stainless steel, regardless of its physical structure, chemical composition and nature of surface oxides to be removed, within a single plant in which the required chemical, electrochemical, mechanical and hydromechanical treatments are carried out, merely diversifying the operative conditions of each treatment according to the stainless steel type to be processed. The process and the plant according to the invention allow elevated reaction rate, excellent surface quality, low energy and chemical reagent consumption and total environmental compatibility. The figure shows the block diagram of an embodiment of the plant according to the invention.

Process and plant for descaling, pickling and finishing passivating stainless steel strips, and strips so obtainable

A method is disclosed for the inhibition of general corrosion, and of stress corrosion by hydrogen sulfide in manganese and low-alloy, medium-strength and high strength steels, obtained by means of the use of compounds of formula:

Inhibitors of corrosion in high-strength and medium-strength steels

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Milan, Italy

Yean Demertzis