23 Result(s)
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Article
Influence of oxygen-rich hot air composite gas medium on sintering performance and function mechanism
Hot air sintering technology is used to improve the quality and production efficiency of sintered ore. However, the current thick layer condition highlights the disadvantage of the low oxygen potential of the ...
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Article
Corrosion behavior of as-cast Al0.75CoFeCr1.25Ni high entropy alloy in 0.5 mol/L NaOH solution
The corrosion behavior of an Al0.75CoFeCr1.25Ni high-entropy alloy (HEA) in 0.5 mol/L NaOH solution was investigated using a series of electrochemical and analytical techniques, including X-ray photoelectron spec...
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Article
Effect of blade tilt angle on fluid flow characteristics in spray-blowing agitation composite process: a simulation
Aiming at the paddle tilt angle of the spray-blowing agitation composite process, the four-blade stirring and blowing composite desulfurization agitator was chosen as the research object, and the computational...
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Article
Propagation form of internal cracks induced by continuous casting soft reduction and control strategy for internal quality
The propagation form of internal cracks induced by continuous casting soft reduction and the control strategy for enhancing the internal quality of 45 steel through industrial trials and a three-dimensional fl...
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Article
DLF-YOLOF: an improved YOLOF-based surface defect detection for steel plate
Surface defects can affect the quality of steel plate. Many methods based on computer vision are currently applied to surface defect detection of steel plate. However, their real-time performance and object de...
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Article
Migration behavior of solid fuel particles during granulation process and its influence on combustion property
Iron ore sintering process is the main CO2 emission source throughout the integrate steelworks, which primarily comes from the combustion of solid fuels. Improving the combustion efficiency and reducing the solid...
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Article
Effect of rare earth content on microstructure and corrosion resistance of hot-dip Zn–5Al alloy coated steel wire for bridge cables
The effects of the content of rare earth elements on the microstructure and properties of hot-dip Zn–5Al alloy steel wire for bridge cables were investigated. The microstructure of the hot-dip coating was anal...
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Article
Simulation of bubble breaking process in a jet mixing reactor for desulfurization of molten iron
The gas–liquid flow behavior of the stirred flow field, the different positions of a single bubble, the initial velocity, the surface tension and the agglomeration of multiple bubbles were studied by CFD numer...
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Article
Influence of cooling rate on phase transformation and precipitation behavior of Ti-bearing steel in continuous cooling process
The influence of cooling rate on microstructural evolution and precipitation behavior in Ti, Ti–Nb and Ti–Mo low-carbon steels during the continuous cooling process was studied by dilatometer method, optical m...
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Article
Multi-class classification method for steel surface defects with feature noise
Defect classification is the key task of a steel surface defect detection system. The current defect classification algorithms have not taken the feature noise into consideration. In order to reduce the advers...
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Article
Unbalanced classification method using least squares support vector machine with sparse strategy for steel surface defects with label noise
Least squares support vector machine (LS-SVM) plays an important role in steel surface defects classification because of its high speed. However, the defect samples obtained from the real production line may b...
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Article
Oxygen transfer phenomenon between slag and molten steel for production of IF steel
FeO-containing slag originated from the basic oxygen furnace to the ladle is a major reoxidation source during the following secondary refining. Ladle slag reduction treatment (slag treatment) is one of the co...
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Article
End-point dynamic control of basic oxygen furnace steelmaking based on improved unconstrained twin support vector regression
In order to improve the end-point hit rate of basic oxygen furnace steelmaking, a novel dynamic control model was proposed based on an improved twin support vector regression algorithm. The controlled objects ...
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Article
Effect of volume fraction and mechanical stability of austenite on ductility of medium Mn steel
A hot-rolled medium Mn (0.2C5Mn) steel is annealed at 650 °C to produce an ultrafine-grained duplex microstructure with different austenite volume fractions by austenite reverted transformation (ART) annealing...
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Article
Effects of gelation behavior of PPC-based electrolyte on electrochemical performance of solid state lithium battery
Polypropylene carbonate (PPC)-based solid state electrolyte was fabricated by using a cellulose membrane as a skeleton. The gelation behavior of the PPC-based solid electrolytes in solid-state lithium batterie...
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Article
Multi-class classification method for strip steel surface defects based on support vector machine with adjustable hyper-sphere
Focusing on strip steel surface defects classification, a novel support vector machine with adjustable hyper-sphere (AHSVM) is formulated. Meanwhile, a new multi-class classification method is proposed. Origin...
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Article
Investigations into the slip behavior of zirconium diboride
The slip systems in ZrB2 flexural tested at 1000 °C and 1500 °C have been quantified. The dislocations in both samples were long and straight with a dislocation density of approximately 1013 m−2. The structure of...
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Article
Arc Behavior and Droplet Transfer of CWW CO2 Welding
Cable-type welding wire (CWW) CO2 welding is an innovative process arc welding with high quality, high efficiency and energy saving, in which CWW is used as consumable electrode. The CWW is composed of seven wire...
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Article
Multi-class Classification Methods of Enhanced LS-TWSVM for Strip Steel Surface Defects
Considering strip steel surface defect samples, a muli-class classicaton method was proposed based on enhanced least squares twin support vector machines (ELS-TWSVMs) and binary tree. Firstly, pruning region s...
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Article
Fatigue Property of Hot Rolled and Cold Rolled Strips
Tension-tension fatigue properties of hot rolled and cold rolled strips with same contents and sizes were measured by using group test method at room temperature in air. The results showed that the fatigue pro...
