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CMRDI Organizes 3rd African Training Course in Minerals Processing and Extraction Technology PDF Print Email

CMRDI organized the 3rd African training course in the field of minerals processing and extraction technology in collaboration with the Arab Fund for technical assistance for African countries from 16/12/2012 to 3/1/2013. 

15 trainees attended from different related specialties (Engineers, geologists, and chemists) representing 7 African countries (Malawi, Kenya, Ghana, Liberia, Tanzania, Zambia, Zimbabwe).
The course aims at introducing an integrated program in evaluation and beneficiation (upgrading) technologies of mineral resources in Africa in addition to different extraction technologies (chemical, electrostatic, and thermal) to produce final or intermediate product of high added-value.
The program included applied training beside theoretical lectures for 3 weeks. 
 
 
STDF Project PDF Print Email

STDF Project

A new project funded by the science and technology development fund (STDF), Academy of Scientififc Research and Technology  is gained by Dr. Ibrahim Mohamed Ghayad, Assoc. Prof. in the Corrosion Control and Surface Protection Lab., Metal Technology Dept. The project aimed at developing local technology for the recovery of zinc from zinc dross of hot-dip galvanizing factories using electrorefining and pyrolytic methods
Zinc recovery from its dross will be investigated using pyrolytic and electrorefining method.  A pyrolytic system will be developed in Central Metallurgical Research and Development Institute (CMRDI) to investigate the various factors (e.g. temperature, time, refluxing chemicals) affecting the recovery of zinc in order to obtain the best recovery.  In the electrorefining experiments; ammonia-ammonium chloride electrolyte will be used. Factors like bath temperature, current density and additives will be investigated. The project is expected to offer a local developed technology for the zinc recovery from zinc dross.  The output of the project is expected to have a great economic impact on the galvanizing industry.


Dr. Ibrahim Mohamed Ghayad, Assoc. Professor

 
"A Novel Approach for Fabrication Technology of Mullite Nanoparticles from Industrial Wastes for Advanced Applications" PDF Print Email

US-Egypt Joint Research Grants For Collaborative Research between Central Metallurgical R&D Institute CMRDI, and University of Florida, , USA was recently approved. Associated professor Mohamed M. Rashad,  Head of Electronic and Magnetic Materials Division is the principal investigator from Egypt whereas  Prof.  K. Powers , Materials Science and Engineering Department is the principal investigator from USA. The project started in September 2011 for two years. The overall objective of this project is to process of silica effluents disposed from alum manufacturing in Egypt, silica fume from Ferro-silicon Alloys Company, Al dross from Egyptian Aluminum Company and aluminum effluents disposed from Egyptalum Company for production of mullite nanoparticles 3Al2O3.2SiO2 for different electronic and optical applications. The suggested technology for the conversion of wastes to the mullite nanopowders for different industrial applications is a novel and very interested. The technology depends on the formation of soluble solutions of sodium aluminate NaAlO2 and sodium silicate Na2SiO3 which is chemically treated at certain conditions using co-precipitation and hydrothermal routes. In comparison, the mullite synthesis by both two routes using pure chemicals is also investigated. The effect of synthesis conditions; temperature, time, pH, molar ratio and the crystal modifiers on the crystal structure, crystallite size and microstructure are studied and the optimum conditions are determined. Moreover, the changes in the surface area SBET, DC resistivity, optical and mechanical properties are measured. Thus, this project has the potential to transform a cheap undesirable by-products produced in Egypt into a highly value added product for the global refractory manufacturing industry, sharing in solving water purification problems through expected increase in alum production, encouraging establishment of new plants as kaolin is available in different localities in Egypt in huge reserves and solving the environmental problems arising from the disposal of acidic silica effluents and alkali disposal of aluminum etching effluents. This project also brings together the international expertise of Particles in USA with the particle technology experts in Egypt (CMRDI).

     

Mullite produced at 1000oC without and with surface active agent
 

 
A study of Ti-6Al-4V alloy modified by Si-addition PDF Print Email

Mr. Mohamed Abdel Kawy, research assistant in Casting Technology lab (CMRDI), has been awarded Master degree in Engineering from Faculty of Engineering-Cairo University for thesis entitled “A study of Ti-6 Al-4 V alloy modified by Si-addition”. This thesis was supervised by Assoc. Prof. Khaled M. Ibrahim from CMRDI and Prof. Abdel-Hamed Hussin from Faculty of Engineering-Cairo University. It aims casting Ti-6Al-4V alloy at CMRDI using vacuum induction furnace by adding 0.5% Si, hot swaging at 900 °C followed by solution treatment at 1050 °C and then aging at 500 °C for 24 hrs., and also aims at studying the effect of adding 0.5% Si as a grain refiner and applying different solution treatment processes on microstructure, mechanical properties and corrosion behavior of Ti-6Al-4V alloy. An addition of 0.5%Si to Ti-64 alloy decreases the grain size in the as-cast structure from 630 to 310 µm and reached to 80 µm after applying hot swaging at 900 °C. Finally optimum mechanical properties and corrosion resistance of this alloy was obtained. It could be used in medical implant and aerospace applications.


 

 
Training program in Hardening-Tempering of Spare Parts For United Industries Company (ELSEWEDY CABLES) PDF Print Email

Spare parts are considered as an important element in the production process. Effective and precise spare parts is leading to increase production quality and consequently, strong competition in the local and global market.
In cables industries the spare parts that used in fused polymers (PVC) extrusion are subjected to both mechanical erosion due to pressurizing the fused polymers and thermal fatigue due to long time passing of high temperature fused PVC. This issue has a negative effect on the quality of cables insulation.
Consequently, Professor Taher El-Bitar, head of metals technology department, proposed a training program for a selective group of engineers, who are responsible for processing of PVC spare parts. The training program is in the field of Hardening-tempering as a first phase, followed by constructing a heat treatment unite to serve not only the PVC spare parts but also for heat treatment process for the whole ELSWEDEY CABLES group.
The training program was dealing with the theoretical bases of heat treatment process as well as practical training to achieve hardening and tempering processes for different carbon content steel samples. Hardness, metallographic preparations and microstructural investigation are as included in the training program.
The program took place at the company and on CMRDI heat treatment unit and plastic deformation laboratory. Training started on 31st July and ended on 25th August 2011.
 

 
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