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Bulk Raw Materials Handling and Blending Techniques of Sinter Plant:A Case Study of Ajaokuta Steel Company Limited,Kogi State,Nigeria

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Journal of Metallic Material Research 2020年第2期3卷 19-36页

作者： Cyril Ocheri HebertAObiorah romanus egwuonwu njoku Nnaemeka AnthonyUrama Joseph Babalola Agboola Christopher Nwankwo Mbah Johnson Nwaemezie Ezeanyanwu Chikezie Walter Onyia Department.of Metallurgical and Materials Engineering University of NigeriaNsukka Department of Metallurgical and Materials Engineering Federal University of TechnologyMinnaNiger State Department of Metallurgical and Materials Engineering Enugu State University of Science and TechnologyEnugu

Bulk raw materials handling plant and sintering plant preparatory plants are established to receive,blend,stockpile,prepare and supply specified grades of raw materials for smooth operations of iron making plant(Blast furnace),steel making plant(Basic oxygen converter)and lime Plant(calcinations plant).The study discusses bulk raw materials handling and some general problem of scientific analysis and documentation of basic equipment details,stockyard facilities,bulk materials transport systems and sinter processes,for the general knowledge and operational procedures of these plant for effective and efficient operational processes for optical *** ore concentrate supplied from the mines to some extent fluctuate in their chemical composition as a result of the nature of the deposit with various factors controlling beneficiation processes and addition of metal-bearing materials collected as a waste product from the Rolling Mills,Blast Furnace and Sinter Plant which must be recycled through Iron ore concentrate *** part of the sinter mixture is melted at a temperature about 1300-1480°C and a sequence of reactions shaping the sinter cake to be loaded into the blast furnace to produce iron from a pig.

关键词： Blast furnace Iron concentrate Sinter Plant Stockpile Stockyard facilities

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The Study on the Corrosion Behaviour of Welded and Unwelded Medium Carbon Steel in Sodium Chloride(Nacl)Solutions

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Journal of Metallic Material Research 2020年第2期3卷 1-16页

作者： Cyril Ocheri Hebert A.Obiorah romanus egwuonwu njoku Nnaemeka Anthony Urama Joseph Babalola Agboola Christopher Nwankwo Mbah Johnson NwaemezieEzeanyanwu Chikezie Walter Onyia Department of Metallurgical and Materials Engineering University of NigeriaNsukka Department of Metallurgical and Materials Engineering Federal University of TechnologyMinnaNiger State Department of Metallurgical and Materials Engineering Enugu State University of Science and TechnologyEnugu

The research work was based on the study of the corrosion behaviour of the welded and un-welded medium carbon steel in sodium chloride *** Sodium chloride solutions used are 1ml,2ml,3ml and 4ml for both welded and un-welded medium carbon steel in *** experiments were conducted in two ways,the weight loss analyses of measurements and using the electrochemical analyzer workstation to determine the potential dynamic of the *** samples for the weight loss measurements were prepared from rolled products obtained at the foundry *** medium carbon steel materials were sourced with different chemical compositions as sample A and *** materials were prepared to accommodate the experiments for the determination of welded and un-welded medium carbon steel.A total of sixty-eight(68)samples were produced,prepared and used for the weight loss measurements/analyses the ***-four of the samples each were prepared for both the welded and un-welded *** the samples were produced and prepared through the use of various machining processes with the use of a lathe machine for planning,***-four(34)of the sample preparation were further welded in readiness of the ***-eight breakers were sourced for and ***(10)other samples were used for the determination with the use of the electrochemical *** chemical compositions of the medium carbon steel were determined with the use of SPECTRO Analytical Instruments.A metallurgical inverted optical microscope was used to determine the microstructures of the *** Scanning Electron Microscopy with EDS was used to determine the morphologies of the *** thirty-four of the samples were welded this process was performed to determine the effects of welding on the material surrounding the *** materials were made into sizes with the use of power hacksaw(i.e.2cm by 2cm).Other materials were prepared to 1cm x 1cm thickness from the same mater

关键词： Corrosion behaviour Welded Un-welded Medium carbon steel Sodium chloride solution

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