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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100% of steel produced in the converter is cast by the continuous casting mill. Twin stand, vertical casting machines operating with crystallizers of rectangular section were commissioned in 1973, respectively 1974 in Danube Ironworks.

During continuous casting the casting ladle full of steel is lifted by cranes to the casting level, where it is turned by the ladle turning fork into casting position. When the ladle slide valve is open, liquid steel flows into the tundish, in which the level of steel is controlled by plugs. Crystallizing of the steel strand is started in the copper walled, water cooled crystallizers, while going through the back-up rolls in the secondary cooling zone the strand sets across its full cross-section with the help of water sprayed by compressed air. The strand is cut to the required length by natural gas-oxygen cutting torches. Then the slab is forwarded by the tilter to the discharging roller table, where identifying characters are painted on slab side. Keeping together the heat from which they are produced, the slabs are transferred by rail to the reheating furnaces in the Hot Rolling Mill. Continuous casting is fully automatized, liquid steel stream is protected from reoxidation. The capacity of the tundish is 20 tons. Slabs, which are the base material of sheet rolling, has the thickness of 230 mm, and width may vary from 860 to 1550 mm in eight different sizes. Length ranges that can be cut: 3000-4200 mm and 7000-8400 mm Annual casting capacity: 1.7 million ton