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Anshan, China

Angang Steel Company Limited or Ansteel is a joint-stock limited company parented by Anshan Iron and Steel Group, which is supervised by State Council of the People's Republic of China. It is the second largest steel maker in Mainland China.Ansteel is engaged in producing and selling steel products as billets, cold rolled sheets, color coating plates, wire rods, thick plates and heavy rails. It was incorporated in 1997 when Anshan Iron and Steel injected its cold rolling, wire rod, and thick plate operations into Ansteel. Ansteel is headquartered in Anshan, Liaoning, China. Wikipedia.

Sha Q.Y.,University of Science and Technology Beijing | Sha Q.Y.,Angang Steel | Sun Z.Q.,University of Science and Technology Beijing
Ironmaking and Steelmaking | Year: 2010

The solidification structure, austenite and precipitates in a quenched compact strip processing (CSP) medium thin slab (170 mm thick) of Nb-V-Ti microalloyed steel have been studied. It was found that secondary dendrite arm spacing and austenite grain size are slightly larger than that of similar steel produced by CSP thin slab. This is partially attributed to the slower cooling rate caused by the increased slab thickness. On the other hand, the formation of carbonitride during solidification reduces the width of secondary dendrite arm spacing, while TiN particles and alloying elements in solution may inhibit the growth of austenite grain during solidification and subsequent cooling. In addition to the semidendritic, larger cubic and fine cubic precipitates, which can be observed in CSP thin slab, dendritic precipitates were also found in CSP medium thin slab. © 2010 Maney Publishing.

Zhang H.,Angang Steel | Song C.-E.,Northeastern University China
Xitong Fangzhen Xuebao / Journal of System Simulation | Year: 2011

This system is a Creator and Vega-based platform, and a kind of the way of choosing the path of interactive roaming was designed and implemented. According to the characteristics of the campus, real texture mappings were shot, all kinds of texture mapping were produced and the texture mappings were processed applying Photoshop software, to achieve a fast modeling of real solutions, and make the theory of ergonomics cited and applied. Three-dimensional modeling key technologies were used to establish the 3D models of the campus. Then the model was imported into the simulation software. And in accordance with the requirements of the secondary development, the simulation software could be used to achieve roaming.

Li H.,CAS Institute of Process Engineering | Cao H.,CAS Institute of Process Engineering | Li Y.,CAS Institute of Process Engineering | Zhang Y.,CAS Institute of Process Engineering | Liu H.,Angang Steel
Environmental Engineering Science | Year: 2010

Coking wastewater was treated by an A-O1-O2 biofilm system composed of an anoxic bioreactor and two aerobic ones. To improve removal efficiency of organic pollutants, the anoxic bioreactor was used to investigate organic removal via anoxic process with enhanced denitrification, and the first aerobic bioreactor was used to test the feasibility of nitrogen removal via nitrite in an attached growth system. Concentrations of ammonium nitrogen(NH+ 4-N), phenols, and chemical oxygen demand (COD) in the wastewater ranged between 200 and 500, 250 and 350, and 1,700 and 2,200mg L-1, respectively. Removal of organic pollutants through anoxic process was enhanced by raising ratio in the influent of anoxic bioreactor. Removal efficiencies for total organic compounds of 17.84%, 41.78%, 82.63%, and 88.73% were obtained at ratios of 1:10, 1:5, 1:3, and 1:2, respectively. Shortcut nitrification was obtained in the first aerobic bioreactor when dissolved oxygen was 2.0-3.0L-1 at 35°C±1°C. Both ammonia oxidation ratio and nitrite accumulation ratio were maintained above 85%, with ammonia load ranging from 0.22 to 0.30g (L day)-1 by adjusting the hydraulic retention time and influent concentration. Gas chromatography/mass spectrometry analysis demonstrated that most of organic compounds were decomposed at the enhanced denitrification stage and the high removal efficiency of total organic compounds was obtained through the A-O1-O2 process. This study was presumed to provide a better option for the treatment of coking wastewater. © Mary Ann Liebert, Inc.

Ding F.,LIAONING Technical University | Wang X.,Angang Steel
Advanced Materials Research | Year: 2011

A numerical model is developed to describe the kinetics of the microstructure evolution in an atomized droplet of Mg-9wt%Al alloy. The model is coupled with the heat transfer controlling equations to simulate the solidification process of the atomized droplets. The numerical results show that the microstructure development is a result of the common action of the nucleation and growth of grains. The nucleation events take place at a critical supercooling for a given droplet. As the droplet size decreases, the critical supercooling increases significantly. The volume fractions of the phases formed during the period of the recalescence, the segregated solidification and the eutectic reaction are sensitive to the droplet size. It is demonstrated that the developed model describes the microstructure evolution process well.

Deng J.-H.,Angang Steel
Yejin Fenxi/Metallurgical Analysis | Year: 2013

The basic knowledge and related books of glow discharge optical emission spectrometry technology were briefly introduced. Its application in domestic steel industry was reviewed in detail. The bulk analysis of domestic steel industry was involved in middle-low alloy steel, stainless steel, pig iron, cast iron and high temperature alloy. The anode diameter was main 4 mm. The analytical elements were up to 24 kinds. The excitation power was 12-90 W. The data precision was mostly less than 5%. The depth profile analysis was mainly involved in galvanized sheet, tinning sheet and color-coated sheet. The determination of fluorine and preparation of scanning electron microscopy samples were bright spots of its application. The progress of international standard and national standard of glow discharge optical emission spectrometry was summarized. The repeatability and reproducibility of glow discharge optical emission spectrometry, X-ray fluorescence spectrometry, inductively coupled plasma atomic emission spectrometry and spark source atomic emission spectrometry in the determination of multi-elements in middle-low alloy steel were compared. The data indicated that the repeatability of glow discharge optical emission spectrometry was low, while the reproducibility was high. Finally, the factors limiting the development of glow discharge optical emission spectrometry were discussed.

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