AlSi17Cu5Mg ALLOY AS FUTURE MATERIAL FOR CASTINGS OF PISTONS FOR INTERNAL COMBUSTION ENGINES
ثبت نشده
چکیده
J. Piątkowski, The Silesian University of Technology, Faculty of Materials Science and Metallurgy, Katowice, Poland The paper presents chosen properties and microstructure of AlSi17Cu5Mg alloy as future material for casting pistons in automotive industry. Tests were conducted to elaborate technology of preparation, assessment of crystallisation parameters and shaping the primary structure of the silumin with the aim to improve the working parameters and the functioning efficiency in cylinder-piston system. Refinement of Si crystals, achieved due to overheating above the temperature Tliq. causes that the alloy reaches satisfactory properties in working chamber of the engine are optimised. Such condition of material characteristics causes that hypereutectic silumins, for chosen applications in transport, may serve as an alternative to Al Si alloys of hypoeutectic and near eutectic type.
منابع مشابه
Thermoeconomic comparison between the performance of small-scale internal combustion engines and gas turbines integrated with a biomass gasifier
Recently, many countries have paid substantial attention to power generation from biomass gasification, particularly through small-scale plants. A number of power plant models have been suggested and analyzed; however, certainly, desirable configurations have not been identified yet. Moreover, their performances are ordinarily difficult to compare, especially owing to the fact that working ...
متن کاملDetermination of Optimal ValveTiming for Internal Combustion Engines Using Parameter Estimation Method
متن کامل
Crystallization and Structure of Cast A390.0 Alloy with Melt Overheating Temperature
The paper presents the research on the infl uence of melt overheating temperature on crystallization parameters and primary structure of cast AlSi17Cu5Mg (A390.0) alloy overheated to temperature: 820 °C, 880 °C, 940 °C and 1 000 °C. It was found that the degree of overheating infl uences the change of microstructure signifi cantly and morphologies of primary silicon of the castings from Al-Si a...
متن کاملNumerical Simulation of Combustion with Porous Medium in I.C. Engine
Porous media has interesting features in compared with free flame combustion due to the extended of the lean flammability limits and lower emissions. Advanced new generation of internal combustion (IC) engines are expected to have far better emissions levels both gaseous and particulate matter, at the same time having far lower fuel consumption on a wide range of operating condition. These c...
متن کاملAir-fuel Mixture Preparation for Internal Combustion Engines:Optical Techniques for Diagnosis of the Spray Developments
Nobody escapes the importance of the air/fuel mixture preparation in internal combustion engines, whatever is the thermodynamic cycle they work on and the adopted fuel. The short time between the fueling and the start of the combustion is crucial for the best mixture formation and its burning for energy optimization and the pollutant production. The always stringent vehicle emissions rules led ...
متن کامل