137 Result(s)
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Article
Critical Content of MgO in Spheroidisers
Magnesium oxide in spheroidiser is harmful to the production of ductile iron for decreasing active magnesium content. To obtain quality ductile iron, the effects of magnesium oxide content in spheroidisers on ...
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Article
Study and Application of Heat Treatment of Multi-Element Wear-Resistant Low-Alloy Steel
The effects of heat treatment on the properties of multi-element wear-resistant low-alloy steel (MLAWS) which is used to make the liner of rolling mill torus were researched. The results show that when quenchi...
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Article
Effects of Mineral Composition and Microstructure on Crack Resistance of Sintered Ore
Vickers indentation test was used to study the effects of mineral composition and microstructure on crack resistance of sintered ore, and the initiation and propagation of cracks in different minerals containe...
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Article
Effect of Alloying Elements on Thermal Wear of Cast Hot-Forging Die Steels
The effect of main alloying elements on thermal wear of cast hot-forging die steels was studied. The wear mechanism was discussed. The results show that alloying elements have significant influences on the the...
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Article
Development of Glass Ceramics Made From Ferrous Tailings and Slag in China
A great amount of ferrous tailings and slag cause severe damage to the ecological environment, which must be reclaimed and utilized. The composition, type, and characteristics of ferrous tailings and slag in C...
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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
Perturbation Solutions for Thermal Process of Honeycomb Regenerator
A parameter perturbation for the unsteady-state heat-transfer characteristics of honeycomb regenerator is presented. It is limited to the cases where the storage matrix has a small wall thickness so that no te...
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Article
High Efficient Technology of Steelmaking With Low Silicon Hot Metal on Large Converter
To resolve the difficulty in slag formation during steelmaking with low silicon hot metal and to increase productivity, a new 5-hole lance was developed by increasing oxygen flow from 50 000 m3/h to 60 000 m3/h. ...
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Article
Effects of AlMnCa and AlMnFe Alloys on Deoxidization of Low Carbon and Low Silicon Aluminum Killed Steels
To confirm the effects of AlMnCa and AlMnFe alloys on the deoxidization and modification of Al2O3 inclusions, experiments of 4-heat low carbon and low silicon aluminum killed steels deoxidized by AlMnCa and AlMnF...
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Article
Research and application of expert system skeleton for controlling sintering process
An expert system skeleton tool of sintering process was constructed using object-oriented method, which can actualize two functions, i. e., the shell function and the program function. The skeleton tool offere...
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Article
A New Mathematical Model for Description of the Liquid Discrete Flow Within a Packed Bed
The molten liquid discrete flow inside a packed bed is a typical transport phenomenon in the blast furnace. As for the reported mathematical models presenting the liquid discrete flow within the packed bed, th...
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Article
Effect of surface mechanical attrition treatment on corrosion behavior of 316 stainless steel
The nanocrystalline microstructure of the surface of 316 stainless steel (316SS) induced by surface mechanical attrition treatment (SMAT) was determined by X-ray diffraction (XRD) and scanning electron microsc...
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Article
Double slag operation dephosphorization in BOF for producing low phosphorus steel
A study on the production of low phosphorus steel by double slag operation in 210 t converter was carried out. A phosphorus content of less than 0.005% (mass percent) was obtained before tap**. About 80% pho...
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Article
Columnar to equiaxed transition during solidification of small ingot by using electric current pulse
A new approach to applying the electric current pulse (ECP) with parallel electrodes to the promotion of the transition from columnar crystal to equiaxed crystal and the improvement of macrosegregation was int...
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Article
High efficient blowing technique for large and medium converters
The high efficient blowing technique includes increasing oxygen supply intensity and optimizing slag forming. The oxygen supply intensity on 300 t converters of No. 1 steelmaking shop at Baosteel reaches 3.83m3/(...
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Article
Model software package development for laminar cooling process in hot mill
The use of computer simulation techniques in the control system design of the laminar cooling process in a hot mill can significantly reduce the development cost while ensuring maximum production safety. The c...
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Article
Calcination of Slags for Electroslag Remelting
The hydrides in industrial lime, alumina, magnesia, and calcium fluoride were investigated through differential thermal analysis and X-ray diffraction, and their mass losses during heating up were studied by t...
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Article
Exergy Analysis and Optimization of Ladle Furnace Refining Process
To decrease energy consumption of ladle furnace, exergy analysis and optimization were conducted based on the ladle furnace refining process of modern clean steelmaking. Exergy analysis results showed that exe...
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Article
Characteristic Analysis of Solidified Crust for Basic Tundish Flux With Al-Killed Steel Casting
The solidified crust was harmful to Al-killed steel casting using a basic tundish flux. After sampling from an actual tundish, XRD, SEM and EDX examinations were carried out to analyze the microstructure of so...
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Article
Effects and Mechanisms of RE on Impact Toughness and Fracture Toughness of Clean Heavy Rail Steel
Clean high carbon heavy rail steel was prepared by the process of vacuum induction furnace smelting, forging and rolling. Mechanisms of RE on the impact toughness and fracture toughness for clean high carbon s...
