Thermal Path Adjustment for Consistent Steel Sheet Microstructure
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Solution Overview
Problem
Existing methods for thermally treating steel sheets do not account for individual steel sheet characteristics, leading to non-personalized cooling treatments and resulting in inconsistent mechanical properties and poor quality steel products.
Innovation Solution
A dynamical adjustment method that detects deviations during the thermal treatment process and calculates a new thermal path to achieve a specific microstructure target, taking into account the steel sheet's chemical composition and microstructure, using a control step, calculation step, and new thermal treatment step to ensure precise cooling paths are applied.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a standardized cooling treatment is applied to all steel sheets, then the manufacturing process is simple and fast, but the mechanical properties show big dispersion and quality is poor
Solution Approach 1:
The patent implements a dynamic adjustment method where cooling parameters are continuously modified based on real-time detection of steel sheet characteristics and temperature deviations. The system calculates and applies personalized cooling paths for each steel sheet, transforming the static standardized process into a dynamic adaptive process that maintains both efficiency and precision.
Solution Approach 2:
The system changes cooling parameters (cooling rate, duration, temperature thresholds) based on detected steel sheet properties and process deviations. By dynamically adjusting these parameters rather than applying fixed values, the system achieves consistent mechanical properties across different steel sheets while maintaining productive throughput.
2Manufacturing precision
If a personalized cooling treatment is applied to each steel sheet, then the mechanical properties are consistent and quality is high, but the calculation time and process complexity increase
Solution Approach 1:
The system performs preliminary detection of steel sheet characteristics (chemical composition, initial microstructure, thickness) before the cooling process begins. This advance information gathering allows the calculation of personalized cooling paths to be prepared in advance, reducing real-time calculation time and enabling quick application of precise cooling treatments.
Solution Approach 2:
The system continuously monitors temperature deviations and steel sheet characteristics during processing, using this feedback to dynamically adjust cooling parameters. This real-time feedback mechanism allows the system to maintain precision without requiring excessively long calculation times, as adjustments are based on actual measured data rather than extensive theoretical computations.
3Manufacturing precision
If cooling parameters are adjusted based on steel sheet characteristics, then the desired microstructure is achieved, but the process requires complex detection and calculation systems
Solution Approach 1:
The system uses the steel sheet's own characteristics (chemical composition, initial microstructure, thickness) as input data to determine its own optimal cooling path. This self-service approach minimizes the need for complex external control systems, as the steel sheet's inherent properties guide the cooling parameter selection rather than requiring complex algorithms to determine them.
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
This method ensures steel sheets achieve desired mechanical properties with minimal dispersion, adapting to each steel sheet's unique characteristics and improving the quality of thermally treated steel by providing personalized heat treatments.
Implementation Method 1
a cooling step, characterized by a cooling path, from the soaking temperature to a final temperature
Data Source
AI summary
The present invention provides a method of dynamical adjustment for manufacturing a thermally treated steel sheet.