ALTERNATIVE STEEL PRODUCTION DIRECT REDUCTION PROCESSES MIDREX DIRECT REDUCTION AT: ARCELORMITTAL HAMBURG
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By Mohammad Safi
SIGNIFICANCE AND CHANGES OF THE STANDARD ISO 9001
ISO 9001 is an international standard that includes requirements for a quality management system in a business organization that it must meet in order to operate in compliance with internationally recognized standards. Benefits of implementing this standard in organizations are large and besides the ability to sell and produce t...
By Mirsada Oruč, Dragana Agić, Fuad Klisura, Neira Delić
IMPROVEMENT OF SECONDARY METALLURGY TREATMENT DURING PRODUCTION OF STEEL FOR THE FORGINGS IN STEELWORK ZENICA
The practical objective of this paper was based on improving the cleanliness of forging ingots, improving the ingots yield by the reduction of ingot head, taking the example carbon steels produced in Steelwork Zenica In that sense, the modification of existing technologies has been done in the segment of secondary metallurgy dur...
By Omer Kablar, Aida Mahmutović, Menzur Plaćo, Šaban Žuna
THE INFLUENCE OF ZIRCONIUM ON THE MACHINABILITY AND IMPACT ENERGY OF AUSTENITIC STAINLESS STEEL
Stainless steel plays an important role in all emerging technologies. Detrimental effects of inclusions in steel do not only depend on their sizes, shape, distribution, but also on their chemical composition and mechanical properties. For this reason, the control of formation of non metallic inclusions and the characterization presen...
By Derviš Mujagić, Aida Mahmutovic, Mustafa Hadžalić, Amna Karić
THE EFFECT OF THE AMOUNT OF MAP ON THE COMPRESSIVE STRENGTH OF THE CHEMICALLY BOUNDED REFRACTORY MATERIALS
In recent decades the production of chemically bonded refractory materials has been clearely increased. In this paper was examined the added amount effection of 50% solution of mono aluminum phosphate (MAP) as a binder in refractory concretes. Quartz, sand and chamotte are used as fillers. Research has shown that the bond between the filler and the...
By Nadira Bušatlić, Ilhan Bušatlić, Mitar Perušić
THE PRELIMINARY EXAMINATION OF THE PRODUCTION POSSIBILITY OF LOW HEAT HYDRATATION CEMENT IN CF KAKANJ
Cement is a mineral hydraulic binder which is formed by sintering (heat treatment) primary minerals of cement clinker at a sintering temperature. In the cement composite only cement releases heat by reaction with water, and image about the amount of heat or about temperature of solid concrete is obtained by determination of the heat of hydration of...
By Ilhan Bušatlić, Nevzet Merdić, Nedžad Haračić, Amna Karić, Sumeja Hibović
SELECTIVE OXIDATION OF METALLIC ELEMENTS FROM THE MELT USING CONTROLLED INTERACTION OF PARAMETERS
Just connect thermodynamic and kinetic factors, mechanisms and flow of process parameters in heats ferrous possible to plan , outline and guide the process of selective oxidation of certain metal elements, if necessary, non-metallic elements , estimate changes of the heat with thermodynamic and kinetic point of view. The above proced...
By Derviš Pihura, Jakob Lamut, Derviš Mujagić
USE OF FINITE ELEMENTS METHOD FOR DETERMINING ELASTO-PLASTIC FRACTURE MECHANICS PARAMETERS
The paper presents numerical procedure for determining fracture mechanics parameters in elasticplastic conditions aroundthe crack tip. Applied to this instance, the analysis included the determination of contour J integral by the energy domain integral method. Both, numerical model of standard dimensions SENB specimen and network of finite element...
By Bahrudin Hrnjica, Fadil Islamović, Dženana Gačo, Zijah Burzić
EFFECT OF GRANULATED BLAST FURNACE SLAG ON DEVELOPMENT COMPRESSIVE STRENGTH OF SLAG CEMENT CEM III
Today there is a growing research activity in order to investigate the possibility of using various waste or alternative materials in the cement and other industries. In this regard, granulated blast furnace slag is a significant addition to the metallurgical cement type CEM III. Cements based on blast furnace slag consist of a mixture of cement cl...
By Nedzad Haračić, Nevzet Merdic, Ilhan Bušatlić, Zehrudin Osmanović, Jelica Zelić
EFFECT OF ROAD TRAFFIC ON AIR POLLUTION
The expansion of the transport sector has produced a number of negative factors that constantly threaten the quality of life and economy of the country. Studies have shown that motor vehicles can pollute the environment and economy of country with more than 50% compared to other pollutants. Also, automobile traffic reduces the quality of the enviro...
By Dragana Agić, Fuad Klisura, Muhamed Barut