Technology Directorate

Róbert MÓGER

Chief Metallurgist

+36 (25) 584 180

+36 (25) 583 800

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Csaba WITT

Technology Chief Engineer

+36 (25) 583 472

+36 (25) 584 772

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Hot-Dip Galvanized product sales

István SZÉP

Director of Sales CR, P+O and HDG Sales

+ 36 (25) 583 461

+ 36 (25) 581 305

+ 36 (70) 231 8812

+ 36 (25) 410 023

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András GULYÁS

Head of HDG Sales Department

+ 36 (25) 584 065

+ 36 (30) 986 5143

+ 36 (25) 584 585

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Krisztina ACZÉL

Head of HDG Export Sales Section

+ 36 (25) 582 362

+ 36 (30) 693 3191

+ 36 (25) 584 585

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Directorate of Quality and Environment Management

Zoltán ÉBERHARDT

Head of Quality Management Department

+36 (25) 581 044

+36 (25) 584 781

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Zoltán BANYÁRI

Expert

+36 (25) 582 791

+36 (25) 584 490

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Continuous hot-dip galvanized wide strip is produced only by the Galvanizing Works of ISD DUNAFERR Zrt. in Hungary.  The base material is non-annealed, so-called full hard cold rolled strip. The width of the initial material is 800-1500 mm. The thickness depending on width is 0.35-1.50 mm. The basic production technology is named after Sendzimir, who worked it out. The production line consists of several coordinated machine units that are separately of individual importance. The coils with the maximum weight of 20 tons are made endless by means of a welding machine. Then the strip is drawn through a 50-meter-long heat-treating furnace depending on the cross-section size, but with the maximum speed of 60 m/minute, which sets the suitable mechanical parameters of the finished product mainly by recrystallizing the sheet. Cleaning of the sheet surface takes place in the heat-treating furnace in a protective gas atmosphere. Applied temperature values: 750-1200°C. The sheet cooled down to almost 450°C is drawn through a bath containing 120 tons of zinc. A melt with the zinc content of minimum 99 percent is applied on the sheet surface in quantities specified in the standards. When the melt applied on the surface solidifies, the sheet is cooled down below 100°C. Final mechanical properties and good flatness of the sheet are provided by a stretcher-bender leveller. After the inhibition of corrosion of the surface with weak chromic acid, coils with the required weights are produced, the mass of which ranges from 3 to 15 tons. Then galvanized coils are cut, slit or profiled.

 

 

Hot-Dip Galvanized product catalogue

 

Product compliance certificates

1. Technical and Test Institute for Constructions Prague Czech product certificate for

galvanized products of grades DX51D+Z100 and +Z275

Certified by: ZÚS