Siemens Vai Metals Technologies Gmbh

Primetals Technologies Germany Gmbh

Primetals Technologies Austria Gmbh

Manfred Eder

Klaus Weinzierl

Jian Chen

Gernot Dirisamer

Konrad Krimpelstätter

Christian Schlapak

Kurt Haller

Krzysztof Mazurowski

Jurij Razinkov

Valentin Atalla

In a cooling path, hot rolled material composed of metal is cooled. The cooling path has a pump which extracts coolant from a coolant reservoir and feeds said coolant via a line system to a number of coolant outlets which are controlled by means of valves positioned upstream of the coolant outlets. A control device of the cooling path determines activation states (Ci) for the valves for a respective point in time taking into consideration coolant flows (Wi) which are intended to be discharged via the coolant outlets at the respective point in time, in conjunction with a working pressure (pA) of the coolant prevailing at the inlet side of the valve. By adding the coolant flows (Wi), said control device determines a total coolant flow (WG).

Control of the water economy of a cooling path

A method for applying a lubricant while rolling metallic rolled stock, e.g., a rolled strip guided through a roll gap between two work rolls, may include the following steps: producing a mixture of lubricant and a carrier gas in an atomization device; supplying the mixture to individual spray nozzles of an arrangement of spray nozzles, in order to produce a continuous overall spray jet in the direction of the width of the rolled strip; and applying the mixture by means of the overall spray jet to the surface of at least one of the work rolls and/or to the surface of the rolled strip.

Method and apparatus for applying a lubricant while rolling metallic rolled stock

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Thalheim bei Wels, Austria

Manfred Eder