Cast-Rolling Cooling Control Using Rolled Strip Temperature Profile
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Solution Overview
Problem
Combined cast-rolling plants face challenges in producing rolled products with high quality, particularly in achieving material and surface homogeneity, due to variations in temperature profiles and geometric properties.
Innovation Solution
A method and system that utilize a control device with a measuring unit and controller to detect temperature profiles of rolled products and generate control signals to adjust cooling parameters of the casting machine, ensuring consistent rolled product quality without requiring extensive process knowledge or equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional casting and rolling processes are used without real-time control, then the equipment complexity is low, but the material and surface homogeneity of the rolled product deteriorates
Solution Approach 1:
The patent implements a closed-loop feedback control system where temperature and geometric properties of the rolled product are continuously measured and fed back to the control unit. The control unit automatically adjusts casting parameters based on this feedback to maintain material homogeneity, resolving the contradiction by making the control system adaptive rather than statically complex.
Solution Approach 2:
The patent replaces manual operational control with an automated control system that uses measuring units and control algorithms. This substitution of mechanical/manual operations with automated electronic control achieves superior material homogeneity while the complexity is managed through software rather than hardware complexity.
2Ease of operation
If manual operation and empirical knowledge are required to achieve high quality, then the manufacturing process is simple, but the ease of operation deteriorates due to requiring extensive process knowledge
Solution Approach 1:
The control system performs self-adjustment by automatically measuring rolled product properties and adjusting casting parameters without requiring operator intervention or empirical knowledge. The system serves itself by using its own measurement data to optimize the process, achieving both high quality and ease of operation.
Solution Approach 2:
The automated feedback control loop eliminates the need for operator expertise by continuously monitoring and self-correcting process deviations. The control unit processes measurement signals and automatically generates control signals to maintain quality, making operation simple while ensuring high manufacturing precision.
3Stability of the object's composition
If cooling parameters are not actively controlled, then the device complexity is low, but the temperature profile uniformity and thus material homogeneity deteriorates
Solution Approach 1:
The control unit receives temperature profile measurements from the measuring unit and automatically adjusts cooling parameters based on this feedback. This closed-loop control ensures uniform temperature distribution and material homogeneity while managing cooling control complexity through integrated software control rather than complex hardware.
Solution Approach 2:
The system dynamically changes cooling parameters based on real-time temperature measurements to optimize heat extraction and achieve uniform temperature profiles. By adjusting parameters like cooling water flow rate or nozzle positioning based on measured temperature deviations, the system achieves material homogeneity without requiring overly complex cooling hardware.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables the production of rolled products with high material and surface homogeneity by automatically adjusting casting parameters based on real-time measurements, maintaining high quality without needing empirical dependencies or extensive equipment.
Implementation Method 1
the measuring unit detects a property of the rolled product, generates a measurement signal dependent on this property
Implementation Method 2
a cooling device for the casting rollers is controlled to regulate the roller roll
Data Source
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AI summary
The invention relates to a method for operating a combined casting/rolling installation (2), in the case of which a casting machine (4) of the combined casting/rolling installation (2) is used to produce a cast product (40) and a rolling mill (6, 8) of the combined casting/rolling installation (2) is used to produce a rolled product (42a, 42b) from the cast product (40), wherein the combined casting/rolling installation (2) has a regulating device (12) with a measuring unit (14) and with a regulator (16), and the measuring unit (14) detects a rolled-product property, generates a measurement signal dependent on the rolled-product property and transmits the measurement signal to the regulator (16), the regulator (16) uses the measurement signal to generate a control signal for the casting machine (4) on the basis of a regulating algorithm, and transmits the control signal to the casting machine (4), and the casting machine (4) uses the control signal to set a casting parameter. In order to make it possible to produce a rolled product (42a, 42b) of high quality, it is proposed that the rolled-product property, which is detected by the measuring unit (14), be a temperature profile of the rolled product (42a, 42b) over the width direction thereof and the casting parameter, which is set by the casting machine (4) using the control signal, be a cooling parameter of the casting machine (4).