Roll Stand Setting from Slab Position to Prevent Saber Formation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods fail to effectively prevent the formation of saber or hook shapes during the rolling of slabs, which are detrimental and occur due to uneven heating and rolling, without specifying how to determine the necessary adjustments to the rolling stand settings.
Innovation Solution
A method that determines the setting of the rolling stand by considering the relative positions and overlaps of adjacent slabs, without needing to calculate the temperature distribution, using a detection device that receives information on slab positions and adjusts the rolling stand settings accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual measurement and calculation methods are used for roll stand adjustment, then device complexity is reduced, but manufacturing precision and adjustment accuracy deteriorate
Solution Approach 1:
The patent replaces manual mechanical measurement methods with an optical measurement system using cameras and image processing. The system captures images of the roll stand and workpiece, automatically calculates adjustment parameters through image analysis, and eliminates the need for manual measurement tools and calculations, thereby improving precision while managing complexity through automation.
Solution Approach 2:
The patent creates a digital copy of the physical roll stand and workpiece configuration through photographic imaging. By capturing visual information and processing it computationally, the system generates accurate adjustment data without requiring direct physical measurement, thus improving measurement accuracy while reducing the complexity of physical measurement apparatus.
2Manufacturing precision
If automated optical measurement systems are implemented, then manufacturing precision improves, but device complexity increases
Solution Approach 1:
The patent employs a universal optical measurement system that can handle multiple measurement tasks and different roll stand configurations using the same basic apparatus (cameras, image processing software). This multi-functional approach improves precision across various applications while avoiding the need for separate specialized devices for each measurement scenario, thereby controlling overall system complexity.
3Productivity
If traditional manual adjustment methods are used, then ease of operation is maintained, but productivity deteriorates due to time-consuming measurements
Solution Approach 1:
The patent implements preliminary action by pre-configuring the optical measurement system with calibration data and measurement protocols. The system is prepared in advance to automatically capture and process images, calculate adjustment parameters, and provide results rapidly. This preliminary setup enables fast, automated adjustments without requiring operators to learn complex manual measurement procedures, thus improving productivity while maintaining ease of operation through simple image capture and result retrieval.
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
Slabs (2) pass through a furnace (1) in a conveying direction (y) and are heated there to rolling temperature. Several slabs (2) are present in the furnace (1) at any given time. After heating, the slabs (2) are rolled in at least one rolling stand (4, 6) in at least one pass. A detection device (8) receives information (I1, I2, I3) indicating the relative positions of the slabs (2) as they pass through the furnace (1) in at least one direction (x, z) orthogonal to the conveying direction (y). Based on this information (I1, I2, I3), without first determining the temperature distribution of each slab (2) or using a determined temperature of each slab (2) for at least one pass of each slab (2), it determines the setting (A) of the rolling stand (4, 6) performing that pass.The determining device (8) takes into account, when determining the position (A) for the respective slab (2), the area occupied by the preceding and/or following slab (2) in the conveying direction (y) relative to the respective slab (2). It transmits the respective determined position (A) of the rolling stand (4, 6) to a control device (5, 7), which controls the rolling stand (4, 6) when rolling the respective slab (2), taking into account the respective position (A).