Quenching Stress of Hot-Rolled Seamless Steel Tubes under Different Cooling Intensities Based on Simulation

Rui, Zhang; Chen, Dong; Quan, Xie; Kang, Jian; Yuan, Guo; Wang, Guodong

doi:10.3390/met12081363

Cited by 4 publications

(2 citation statements)

References 24 publications

(29 reference statements)

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“…Thus, the combination of microband-induced plasticity together with twinning-induced plasticity (TWIP) leads to a continuous strain hardening behavior and, consequently, to superior mechanical properties. Li et al [6] investigated the quenching residual stress of hot-rolled seamless steel tubes with different cooling intensities by using ANSYS simulation software. Their results offered data support and theoretical reference for the heat treatment process design of seamless steel tubes.…”

Section: Contributionsmentioning

confidence: 99%

Deformation, Fracture and Microstructure of Metallic Materials

Chen

2023

Metals

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Section: Contributionsmentioning

confidence: 99%

Deformation, Fracture and Microstructure of Metallic Materials

Chen

2023

Metals

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“…Compared to the conventional PID algorithm, the overshoot was reduced, and the stability and self-adaptive ability were improved. In [ 13 ], the ANSYS software for finite element simulation is used, using full simulation to study the product quality problems caused by large residual stress in the heat treatment process of seamless steel pipe rolling. Using this approach can shorten research time and reduce research costs.…”

Section: Introductionmentioning

confidence: 99%

Optimization Strategy of Rolling Mill Hydraulic Roll Gap Control System Based on Improved Particle Swarm PID Algorithm

Zeng

Xue²,

Zhao

2023

Biomimetics

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Medium and heavy plates are important strategic materials, which are widely used in many fields, such as large ships, weapons and armor, large bridges, and super high-rise buildings. However, the traditional control technology cannot meet the high-precision control requirements of the roll gap of the thick plate mill, resulting in errors in the thickness of the medium and heavy plate, thereby reducing the quality of the product. In response to this problem, this paper takes the 5500 mm thick plate production line as the research background, and establishes the model of the rolling mill plate thickness automatic control system, using the Ziegler–Nichol response curve method (Z-N), particle swarm optimization (PSO) algorithm and linear weight particle swarm optimization (LWPSO) algorithm, respectively, optimizes the parameter setting of the PID controller of the system, and uses OPC UA communication technology to realize the online semi-physical simulation of Siemens S7-1500 series PLC (Siemens, Munich, Germany) and MATLAB R2018b (The MathWorks, Natick, Massachusetts, United States). Comparative studies show that when the same roll gap displacement step signal is given, the overshoot of the system response using the LWPSO algorithm is reduced by 14.26% and 10.18% compared with the Z-N algorithm and the PSO algorithm, and the peak time is advanced by 0.31 s and 0.05 s. The stabilization time is reduced by 3.71 s and 4.31 s, which effectively improves the control accuracy and speed of the system and has stronger anti-interference ability. It has certain engineering reference and application value.

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Study on the control of post-roll bending deformation and residual stress in hot-rolled L-beam based on rapid cooling

Li,

Zhao

2024

Proceedings of the Institution of Mechanical Engineers, Part L:

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The bending deformation problem and internal residual stress of hot-rolled L-beams affect the quality and subsequent use performance of L-beams. In this paper, the computational model of the L-beam air-cooling process is established by using ABAQUS finite element software, which reveals the reasons for three times deformation of the L-beam from the perspectives of phase change expansion and metal cooling contraction. In order to control the deformation and residual stress of the L-beam, four experimental schemes were determined with the cooling method, water pressure, and the opening and closing state of the cooling unit of the cooler as variables. The temperature distribution, deformation before straightening, warping deformation after cutting, and magnetic field distribution curves of L-beams before and after rapid cooling under different experimental schemes were examined, and the microstructure and properties of L-beams were examined and the results were analyzed. The results show that the cooling uniformity of the L-beam can be improved by rapid cooling, which can effectively reduce the amount of bending per meter of the L-beam before straightening, the amount of warping deformation after cutting, and reduce the level of residual stress inside the L-beam, and at the same time can refine the microstructure and improve the properties. In this study, the amount of bending per meter and warpage deformation after cutting of L-beams were reduced by up to 67.3% and 85.7%, respectively, and the maximum value of the magnetic field gradient associated with the stresses in the L-beams was reduced by up to 80.2%.

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Quenching Stress of Hot-Rolled Seamless Steel Tubes under Different Cooling Intensities Based on Simulation

Cited by 4 publications

References 24 publications

Deformation, Fracture and Microstructure of Metallic Materials

Deformation, Fracture and Microstructure of Metallic Materials

Optimization Strategy of Rolling Mill Hydraulic Roll Gap Control System Based on Improved Particle Swarm PID Algorithm

Study on the control of post-roll bending deformation and residual stress in hot-rolled L-beam based on rapid cooling

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