Abstract
Driven by the demands for contactless stress detection, technologies are being used for shape control when producing cold-rolled strips. This paper presents a novel contactless stress detection technology based on a magnetoresistance sensor and the magnetoelastic effect, enabling the detection of internal stress in manufactured cold-rolled strips. An experimental device was designed and produced. Characteristics of this detection technology were investigated through experiments assisted by theoretical analysis. Theoretically, a linear correlation exists between the internal stress of strip steel and the voltage output of a magneto-resistive sensor. Therefore, for this stress detection system, the sensitivity of the stress detection was adjusted by adjusting the supply voltage of the magnetoresistance sensor, detection distance, and other relevant parameters. The stress detection experimental results showed that this detection system has good repeatability and linearity. The detection error was controlled within 1.5%. Moreover, the intrinsic factors of the detected strip steel, including thickness, carbon percentage, and crystal orientation, also affected the sensitivity of the detection system. The detection technology proposed in this research enables online contactless detection and meets the requirements for cold-rolled steel strips.
Highlights
Cold-rolled strip steel, as an important industrial raw material, has been extensively applied in the automotive, home appliance, hardware, and other important manufacturing industries.The manufacture of cold-rolled strip steel requires strong and advanced technologies in the steel industry to produce products with high quality and geometric accuracy [1]
To address the problems mentioned above, this study proposes a stress detection technology based on a magneto-resistance sensor and the magnetoelastic effect for cold-rolled strip steel
This study proposed a novel contactless stress detection technology for cold-rolled strip steel based on a magneto-resistive sensor and the magneto-strictive effect that satisfy industrial requirements for accurate detection of strip steel internal stress
Summary
Cold-rolled strip steel, as an important industrial raw material, has been extensively applied in the automotive, home appliance, hardware, and other important manufacturing industries. Zhang [16] and Yu et al [17] conducted theoretical and experimental research on internal stress detection method for cold-rolled strips based on the magnetoelastic effect, which was motivating research for this study. To address the problems mentioned above, this study proposes a stress detection technology based on a magneto-resistance sensor and the magnetoelastic effect for cold-rolled strip steel. The results showed that using a steady-state magnetic field as the excitation field of ferromagnetic materials contributes to obtaining a greater detection depth of internal stress and facilitates signal processing. Using a magnetoresistive sensor with high sensitivity and resolution to capture weak variations in magnetic induction contributes to improving sensitivity and resolution of internal stress detection, which can satisfy industrial requirements for accurate detection of internal stress for strip steel
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
