نتایج جستجو برای: metallurgical industries
تعداد نتایج: 49995 فیلتر نتایج به سال:
B. Gajdzik, The Silesian University of Technology, Faculty of Materials Science and Metallurgy, Katowice, Poland E. Michlowicz, B. Zwolińska, P. Kisiel, AGH University of Science and Technology, Cracow, Poland The publication pr esents fl ows of metallur gical waste in manufac turing metallurgical enterprise. On the basis of analysis the struc ture of wast e fl ows and the wa y of wast e manage...
The pollution emitted into the air from mining-metallurgical complex negatively affects the environment. Plants have the ability to accumulate pollutants in their tissues. The concentration of heavy metals Ni, Zn, Mn and Cu, as well as sulphur, were determined in the edible parts of fruits. The fruits of apple, pear, peach and apricot trees were sampled in rural areas in the vicinity of the ind...
Abstract—This study presents an inverse analysis for predicting the thermal conductivities and the heat flux of a high-temperature metallurgical reactor simultaneously. Once these thermal parameters are predicted, the time-varying thickness of the protective phasechange bank that covers the inside surface of the brick walls of a metallurgical reactor can be calculated. The enthalpy method is us...
L. I. Cioca, Faculty of Engineering, “Lucian Blaga” University of Sibiu, Romania, L. Ivascu, Faculty of Management in Production and Transportation, Politehnica University of Timisoara, Romania The paper presents the trends in the evolution of occupational diseases in Romania in comparison to the EU and the US, as incidence of occupational diseases, their interrelationship with the exposure to ...
This study examines both high-flux flow boiling and critical heat flux (CHF) under highly subcooled conditions using FC-72 as working fluid. Experiments were performed in a horizontal flow channel that was heated along its bottom wall. High-speed video imaging and photomicrographic techniques were used to capture interfacial features and reveal the sequence of events leading to CHF. At about 80...
It is well-known that some metals/alloys are sensitizing on skin contact, but it is not so well appreciated that sensitization is dependent on the reaction of the metal/alloy with sweat. The first step in skin sensitization by metals/alloys is a corrosion process and the formation of soluble metal ions. The nature of this process has implications with respect to occurrence of metal contact derm...
Oxygen top-blow converter is the main equipment in steel making, and its work reliability decides the security and economy of steel production. Therefore, how to design and test analysis of convertor has been an important subject of industry research. Geometric modelling and structure analysis of converter tilting device by using Pro/E program .The design Principle, basic design structure were ...
Introduction Powder metallurgy (p/M) is a rapidly expanding technology for manufacturing of structural parts. The PA4 process provides economical as well as technical benefits over conventional processing of wrought material. It is possible to fabricate high quality, complex parts to close tolerances without machining. The energy consumption is low and the material utilisation and productivity ...
joining of titanium alloys to other materials especially steels has attracted much attention in recent years due to the exceptional properties of titanium such as excellent corrosion resistance and mechanical properties and its increasing application in various industries. according to the fe-ti binary phase diagram, these two elements do not have complete solubility. this leads to difficulties...
Dept. Construccions arquitectòniques II, Universitat Politècnica de Catalunya, Barcelona, Spain, Phone: 34-934016296, e-mail: [email protected], [email protected] GREA Innovació Concurrent, Edifici CREA, University of Lleida, Lleida, Spain, Phone: 34-973003576, Fax: 34-973003575, e-mail: [email protected] Department of Materials Science & Metallurgical Engineering, University of Bar...
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