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Preparation Of No Silicon Steels With Columnar Microstructure Using Temper Rolling Process At Elevated Temperature

Published: 2014
Authors: Frantisek Kovac, Ivan Petryshynets

Non-oriented electrical steels belong to important group of the soft magnetic materials. The soft magnetic characteristics of these materials strongly rely on the ability to control the grain size and texture as well as chemistry of the final steel sheets products. In the present work, we have used an adjusted temper rolling process at elevated temperature for development columnar grain growth with enhanced rotation textures {100}<0vw> in NO steels.

Material Resources / Publications

Physical Metallurgy Behavior Of Ti Containing High Strength Steel Sheet Under Intensive Cooling

Published: 2014
Authors: PEI Xinhua, Tang Shuai

In this paper, the physical metallurgy behavior of Ti containing high strength steel sheet under intensive cooling process after hot-rolling was studied. The results show that the intensive cooling broaden the bainite transformation field. The phase transformation incubation period are shorten and the CCT curve moves to bottom left.

Material Resources / Publications

Influence Of Various Heating Rates And Ceoi Addition On The Pulverized Coal Combustion

Published: 2014
Authors: Chai Yifan, Zhang Jianliang, Qi Chenglin, Ning Xiaojun, Zheng Changle

For more details about the rule of pulverized coal combustion with CeO2 as its catalyst, this article illustrated the influence of the experiment on anthracite coal combustion under different heating rates( 5°C/min^ 10°C/mim 15°C/mim 20°C/min ) and with different addition of CeO2 (0.5%^ 1%^ 2% respectively) by thermal analysis technique.

Material Resources / Publications

Thermal Test And Heat Transfer Analysis Of Nodular Cast Iron Cooling Stave

Published: 2014
Authors: ZUO Haibin, HONG Jun, ZHANG Jianliang, SHEN Meng, TIE Jinyan

The 1:1 thermal tests are carried out, including the naked cooling stave and cooling stave with 20 mm slag skull, in order to determine the actual cooling performance of the nodular cast iron cooling stave produced by lost foam casting (LFC) process. Heat resistance analysis method is also used to calculate the integrated heat transfer coefficient between cooling water and cooling stave.

Material Resources / Publications

Optimization Of Nodular Cast Iron Stave With Elliptical Cooling Pipe

Published: 2014
Authors: Jun Hong, Hai-bi1n Zuo, Jian-liang Zhang, Meng Shen, Jin-yan

The three-dimensional steady-state heat transfer model of a cast iron cooling stave is built based on the commercial CFD software FLUENT, to calculate the temperature field of the cooling stave with circular pipe as well as elliptical pipes. Cooling effects of different kinds of elliptical pipes are analyzed. The results show that compared with a circular cross section, the elliptical cross section can increase the circumference of the cooling pipe under the same water velocity and the same cross-sectional area, thereby increasing cooling ability of the stave.

Material Resources / Publications

New Steel For Fabrication Of The Forged Forming Rolls

Published: 2014
Authors: Potapov A. A, Orlov G. A, Shestakova E. N

The article present high-carbon hypereutectoid steel for the production of hot rolling forged rolls. The steel contains 1.2 - 1.4 % carbon, carbide forming alloying elements Cr, Mo, V and Nb to improve the wear resistance of the roll, and Ni to increase the hardenability. Hot ductility of the steel has been investigated considering segregation of chemical elements in ingots weighing up to 20 tons.

Material Resources / Publications

The Influence Of Semicharcoal Used As Sintering Fuel On Sinter Performance

Published: 2014
Authors: Zhe WANG, Tao YU, Run-bo WANG, Bing GAO

In this paper, the effect of semicharcoal property on sinter performance was investigated by using pot-grate sintering test. Emphasis was mainly focused on the influence of the substitution ratio and particle size on sinter productivity and quality.

Material Resources / Publications

Effect Of Stamp-Charging Technology On Coke Properties

Published: 2014
Authors: Gao Bing, Zhang Jianliang, Zuo Haibin, Wang Zhe, Wang Peng

Two kinds of stamp charging coke and two kinds of top charging coke were chosen and the microstructures and properties were investigated. It is shown that stamp charging cokes were more easily to react with C 0 2 at high temperature. Without alkalis, the weight loss ratio of stamp charging cokes were obviously more than top charging coke.

Material Resources / Publications

A Kinetic Model Of Hot Metal Desulphurization By Injecting Mg And Its Application

Published: 2014
Authors: Liang-cai Zhong, Huang Li, Shan Wei, Bo-yu Chen, Can-rong Wang

A kinetic model of desulfurization with magnesium injection from hot metal was built and the unknown kinetic parameters in this model, that is, volumetric mass transfer coefficients of sulphur and magnesium, Vs and VMg, and magnesium dissolution mass fraction, RMs were determined by a try and error method with industrial data in a steelmaking plant.

Material Resources / Publications

Experimental Research On The Corrosion Inhibition Of The Compound Formula For Bf Soft Water

Published: 2014
Authors: Jiao Ke-xin, Zhang Jian-liang, Zou Hai-bin, Guo Jian, Zheng Changle

The life of blast furnace would be shorten if the soft water couldn't be controlled strictly. The blast furnace cooling water for different regions of A, B, C were studied.

Material Resources / Publications

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