Apparatus for controlling the temperature of rods in a continuous rolling mill

DETAILED DESCRIPTION Accordingly, it is an object of the present invention to provide an apparatus for controlling the temperature of a material being rolled at a laying head so as to comform to a target temperature in the longitudinal direction of the material, by determining the flow rate of cooling water through water cooling units according to a rolling schedule for the material, and correcting the rate of water flow dependent on the difference between the temperature at an inlet of a continuous rolling mill and an expected temperature and the difference between the reading on a laying head thermometer and a target temperature.
According to the present invention, there is provided an apparatus for controlling the temperature of a material being rolled into a rod in a rod rolling line having a continuous rolling mill with a first thermometer located at an inlet thereof, a plurality of water cooling units located behind the rolling mill and having an adjustable rate of flow of cooling water flow rate, and a laying head for winding the rod, the laying head having a second thermometer located at an outlet thereof, the apparatus comprising an arithmetic device for computing the flow rate of cooling water based on a rolling schedule for the continuous rolling mill, an expected temperature at an inlet of the continuous rolling mill, and a target temperature at the laying head, and a control device responsive to a result of computation by the arithmetic device for controlling the rate of flow of the cooling water.
The above and other objects, features and advantages of the present invention will become more apparent from the following description when taken in conjunction with the accompanying drawings in which a preferred embodiment of the present invention is shown by way of illustrative example.