US 8,950,227 B2 · Method and device for preparing hot-rolling stock

Abstract

A method and a device have high energy efficiency and high descaling performance, with which high-quality rolling stock can be produced. In a method in which the rolling stock is heated in an induction furnace and subsequently descaled, before the rolling stock is rolled in a rolling stand or rolling relay, the heated rolling stock is descaled by at least one rotating water jet from a rotary descaler; then at least one temperature of the descaled rolling stock is respectively recorded by a temperature measuring instrument and delivered to a controller; and the controller determines at least one control parameter with the aid of a control rule and by taking into account a setpoint temperature, and delivers it to a control component, at least one inductor of the induction furnace being driven so that the temperature of the descaled rolling stock corresponds as far as possible to the setpoint temperature.

Claims19

Dependent claims

A method for preparing hot-rolling stock, the method comprising the steps of:

heating a rolling stock in an induction furnace;
descaling the heated rolling stock;
rolling the descaled rolling stock in a rolling stand or a rolling relay,
wherein the heated rolling stock is descaled by at least one rotating water jet from a rotor of a rotary descaler;
recording, by a temperature measuring device, at least one temperature of the descaled rolling stock, and delivering the at least one temperature to a controller;
and
determining, by the controller, at least one control parameter with the aid of a control rule and by taking into account a setpoint temperature, and providing the at least one control parameter to a control component, at least one inductor of the induction furnace being driven so that the temperature of the descaled rolling stock corresponds as far as possible to the setpoint temperature.

4 more elements

A device for preparing hot-rolling stock before shaping in at least one rolling stand or rolling relay, the device comprising:

an induction furnace comprising at least one inductor, a descaler and at least one rolling stand,
wherein the descaler is configured as a rotary descaler and comprises at least one rotor including at least one rotating nozzle configured to receive water;
a temperature measuring instrument for measuring a temperature of the rolling stock, the temperature measurement instrument positioned before the at least one rolling stand or rolling relay;
and
a control instrument for controlling the temperature of the rolling stock, the control instrument being connected to the temperature measuring instrument and the at least one inductor of the induction furnace,
wherein the control instrument determines at least one control parameter with the aid of a control rule and taking into account a setpoint temperature, and provides the at least one control parameter to a control component, and
wherein the at least one inductor of the induction furnace is driven so that the temperature of the descaled rolling stock corresponds to the setpoint temperature.

4 more elements

Dependencies are inferred from the claim text.

Method and device for preparing hot-rolling stock

Life of this patent

Method and device for preparing hot-rolling stock

Life of this patent

Abstract

Claims19