Warm-rolling working roll and control method of internal and external temperature field

Abstract

The invention relates to the technology of temperature-controlled rolling of the working roll. The warm-rolling working roll is characterized in that a long hole is formed in an operation side of the end part of a working roll (1), and a rotary joint (7) and a pipeline are installed. The control method of the internal and external temperature field comprises following steps: firstly, using a temperature signal of a temperature monitor (8) at the roller shoulder of the roll as a first target without affecting the temperature field of a roll surface of the roll such that temperature data of the roll shoulder of the roll monitored in a real-time mode can be sent to an intelligent processing unit and the intelligent processing unit is used for sending a calculation result to a PLC control system; secondly, using temperature measured by a return water temperature monitor (10) and a water inlet temperature monitor (6) as a second target such that water temperature data monitored in a real-time mode can be sent to the intelligent processing unit and the intelligent processing unit is used for calculating temperature differences and sending the result to the PLC control system and the a water inlet flow control valve (4) is used for regulating water inlet flow according to an instruction sent by the PLC control system such that reasonable in-roll temperature can be controlled.

Description

technical field [0001] The invention relates to a temperature-controlled rolling work roll technology, in particular to a temperature-rolled work roll and a method for controlling the internal and external temperature fields thereof. Background technique [0002] In the field of rolling, if the workpiece is heated and then rolled, it is called "hot rolling" (steel materials are generally rolled at an austenitic temperature above 900°C); Rolling at room temperature is called "cold rolling". [0003] However, the word "cold rolling" is only relative to "hot rolling". In the actual continuous cold rolling production process, due to the generation of deformation heat, after the rolling speed is greatly increased, the temperature of the roll surface will far exceed the normal temperature. , sometimes reaching hundreds of degrees. [0004] Generally, iron and steel materials are not sensitive to the "cold rolling" temperature at room temperature. However, silicon steel and other...

AI Technical Summary

Problems solved by technology

In addition, as a transmission roller table, the roller itself bears little force and has no special requirements for strength, rigidity and mechanical precision.

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