77 Result(s)
within
**ng-hua Li
Materials Science, general
Metallic Materials
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Article
Heat Treatment of Die and Mould Oriented Concurrent Design
Many disadvantages exist in the traditional die design method which belongs to serial pattern. It is well known that heat treatment is highly important to the dies. A new idea of concurrent design for heat tre...
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Article
Electromagnetic Dam in Twin-Roll Strip Caster
The electromagnetic dam (EMD) in twin-roll strip caster was simulated with FEM. The results show that the direction and magnitude of Lorentz force distributing in the EMD changed in a period. The negative part...
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Article
Behavior of Transversal Crack on Slab Corner During V-H Rolling Process
The behavior of transversal cracks on the surface of the slab corner during vertical and horizontal (V-H) rolling process with flat vertical roll and groove vertical roll was simulated by explicit dynamic fini...
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Article
Analysis of Temperature Field and Thermal Crown of Roll During Hot Rolling by Simplified FEM
Thermal crown of roll is an important factor, which affects strip profile. It is necessary to analyze the temperature field and thermal crown of roll for hot strip mill. A new simplified finite element method ...
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Article
Improvement on Conventional Load Distribution Algorithm in Hot Tandem Mills
Load distribution is a key technology in strip hot rolling process, which influences the coil’s microstructure and performance. Currently, Newton-Raphson algorithm is applied to load distribution of hot tandem...
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Article
Influence of Dog-Bone Apex on Shape During Slab Horizontal Rolling Process
The deformation of slab with dog-bone shape during the horizontal rolling process was simulated using FEM, and the influences of apical dislocation of dog-bone on the slab spread as well as the minimum crop en...
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Article
High Nitrogen Austenitic Stainless Steels Manufactured by Nitrogen Gas Alloying and Adding Nitrided Ferroalloys
A simple and feasible method for the production of high nitrogen austenitic stainless steels involves nitrogen gas alloying and adding nitrided ferroalloys under normal atmospheric conditions. Alloying by nitr...
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Article
FEM Analysis of Rolling Pressure Along Strip Width in Cold Rolling Process
Using 3-D elastic-plastic FEM, the cold strip rolling process in a 4-high mill was simulated. The elastic deformation of rolls, the plastic deformation of the strip, and the pressure between the work roll and ...
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Article
Shape Setup System for 1700 Hot Strip Mill
Shape setup (SSU) system is the core technology for hot strip mill (HSM). A precise SSU system was used to improve the strip quality for HSM. The function of SSU, setup, and feedback was introduced. The main m...
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Article
Numerical Simulation of Temperature Field and Thermal Stress Field of Work Roll During Hot Strip Rolling
Based on the thermal conduction equations, the threedimensional (3D) temperature field of a work roll was investigated using finite element method (FEM). The variations in the surface temperature of the work r...
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Article
Numerical Study on Welding Line Behavior of Deep Drawing TWB Process
The FEM technology is used to analyze the welding line movement behavior of deep drawing TWB sheet with different thickness. It is found that high stress fields are concentrated around the welding line and lar...
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Article
Affecting Factors and Improving Measures for Converter Gas Recovery
To change the undesirable present situation of recovering and using converter gas in steel plants in China, the basic approaches to improving the converter gas recovery rate were analyzed theoretically along w...
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Article
Magnetic Properties and Kinetics Parameters of Electroless Magnetic Loss CoFeB Films
Electroless CoFeB films with good soft magnetic properties were fabricated on polyester plastic substrate from sodium tartarate as a complexing agent. The plating rate of electroless CoFeB films is a function ...
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Article
New Method for Evaluating Thermal Wear of Rolls in Rolling Process
A new method was developed by a thermal wear machine to evaluate the thermal wear of rolls in steel rolling process. The steel strip and rolls were simulated by upper and lower heating disks. The upper heating...
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Article
Influence of Edge Rolling Reduction on Plate-Edge Stress Distribution During Finish Rolling
Dimensions of one kind of stainless steel plate before finish rolling were obtained through analysis of the rough rolling processes by finite element method and updated geometrical method. The FE models of fin...
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Article
Long- and Short-Term Self-Learning Models of Rolling Force in Rolling Process Without Gaugemeter of Plate
Owing to a lack of gaugemeter and the variety of steel grades and standards in some plate mills, the long-and short-term self-learning models of rolling force based on gauge soft-measuring with high precision ...
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Article
Effect of Grain Size on Mechanical Properties of Nickel-Free High Nitrogen Austenitic Stainless Steel
The fine grained structures of nickel-free high nitrogen austenitic stainless steels had been obtained by means of cold rolling and subsequent annealing. The relationship between microstructure and mechanical ...
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Article
Segregation of Niobium During Electroslag Remelting Process
Experiment was carried out after the process parameters were calculated by the model previously established. The relationship between interdendritic spacing and local solidification time (LST) mainly determine...
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Article
Transformation behavior of low carbon steels containing two different Si contents
Continuous cooling transformation behaviors of low carbon steels with two Si contents (0. 50% and 1. 35%) were investigated under undeformed and deformed conditions. Effects of Si contents, deformation, and co...
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Article
Fatigue property of low cost and high strength wheel steel for commercial vehicle
The fatigue properties of the newly developed wheel steel used for commercial vehicles were studied using push-pull axial loading fatigue tests with stress ratio R= − 1. Q235B steel, which is conventionally appli...
