The equipment is used to optimally set the cooling collector, which is necessary for the cooling system to function correctly. By optimizing cooling, the service-life of the cylinder can be extended and thus considerable economic benefits achieved.

Firstly, let’s decode the technical terms ‘jet’, ‘cooling medium’ and ‘collector’:

• A jet is a device which allows the characteristics of a stream of a medium leaving a particular piece of equipment to be determined. The jet forms the outlet part of various spraying or atomizing devices, thrust motors and other equipment.

• The most frequently used cooling medium is water. Its high heat capacity and low price makes it a suitable heat-exchanging medium. It is usually supplemented with additives, for example corrosion inhibitors or anti-freeze agents.

• A collector is a component in electronics or electrotechnics which is used as a collecting electrode in an electron tube or transistor, or as a current collector.

The equipment is used to precisely set the angles and positions of cooling systems intended for cooling the working cylinders of rolling mills. The jet trace is pinpointed onto the cooled surface using laser beams. This enables the required position of the jet impact trace to be set very precisely.

The main advantage of the new device compared to previously known solutions is the very precise setting of cooling jets and collectors. This guarantees effective cooling with the smallest possible consumption of the cooling liquid. By optimizing the cooling we also extend the service-life of the rolling mill cylinder, which has a positive economic effect.

The device for precisely setting the angles of the cooling system jets is protected as utility model.

PETR KOTRBÁČEK is an expert in the experimental research and mathematical modelling of steel moulding in a semi-liquid state. Since 2001 he has been working at the Faculty of Mechanical Engineering of the Brno University of Technology as a research specialist in the Heat Transfer and Fluid Flow Laboratory. He is engaged in science-research activities mainly in the field of measuring heat transfer on moving surfaces, hydraulic descaling and heat processing. He is an author of a range of scientific papers in Czech and international science and technical journals. He participates in research tasks as part of larger scientific projects, and in successful cooperation with prominent Czech and foreign companies.