Primetals Technologies Austria Gmbh

Sieglinder Ehgartner

Alois Seilinger

Erich Opitz

Florian Poeschl

Reinhard Karl

Jian Chen

Thomas Trickl

A cooling section for flat rolling stock () has a working region (), through which the flat rolling stock () is guided. The working region () can be supplied with a liquid coolant () by means of a number of spray beams (). The liquid coolant () is fed from a reservoir () for the liquid coolant () to the spray beams () by means of a pump () and a supply system (). Valves () are arranged upstream of the spray beams () in the supply system (). Opening positions (si) of the valves () are set by a control unit () of the cooling section according to a respective sub-flow (fi) that is to be applied to the flat rolling stock () by means of each spray beam (). Also, the delivery rate (M) of the pump () and/or a line pressure (p) generated by the pump () in the supply system () are set by the control unit () according to the total flow (F) that is to be applied to the flat rolling stock () by means of all the spray beams ().

Cooling section comprising power cooling and laminar cooling

A flat rolled article () passes through a cooling device () in a transportation direction (x) at the level of a passline (). Spray bars () extend transversely with respect to the transportation direction (x). The spray bars () have, as viewed perpendicular to the transportation direction (x), in each case two outer regions () and a central region () in between. A liquid cooling medium () can be fed into the regions () via respective dedicated, individually controllable valve devices (). Flow rate profiles, pertaining to each region may be set, wherein each region () is triangular in shape. The central triangle and the two outer triangles combine to form a rectangle.

Cooling device with breadth-dependent cooling action

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Linz, Austria

Sieglinder Ehgartner