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Search Results: 1 - 10 of 223842 matches for " R. Budzik "
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The Balance of Titanium and Vanadium in the Blast Furnace with the Use of Sinter Containing a Titanium-Vanadium-Magnetite Concentrate
Budzik, R.
Metalurgija , 2007,
Abstract: The investigation concerned the use of sinter containing a titanium-vanadium-magnetite concentrate for the production of pig iron. Sinter containing 0,46 to 0,51 % TiO2 and 0,056 to 0,060 % vanadium was used for pig iron production in the blast furnace. Introducing 200 kg of this concentrate to the1 Mg sinter mix did not cause any deterioration of sinter quality.
Sintering of Ore Mixes Containing Iron Concentrates of a Low SiO2 Concentration of Below 1,0 %
Budzik, R.,Pirikow, A.
Metalurgija , 2007,
Abstract: The investigation concerned the production of ore sinter from sinter mixes containing a concentrate of a very small grain size of below 0,1 mm and a low silicon content of below 1,0 % with an addition of 0,69 %, 8,5 % and 16 % of calcium (CaO) and 11,5 %, 16 % and 21 % of coke, respectively. The obtained sinter of a low Si content of below 1,0 % is partially metallised and may be used as an iron ore substitute for the steelmaking process.
Contemporary elements of quality management system in the metallurgical enterprise
Z. Skuza,R. Prusak,R. Budzik
Metalurgija , 2011,
Abstract: In this paper authors submit a method of quality estimation for metallurgical products. The method include three aspects: product’s fulfillment of appointed properties (essential sense of quality), product’s fulfillment of requirements of environmental protection (liquidation quality, level of waste management, energetic quality), onerousness of production process for health of workers.
The Synergy of the Surface Layer after Carburizing of Tool Steel as a Measure of Operational Quality
Wencel, Z.,Budzik, R.,Kri?ani?, R.,Kolmasiak, C.
Metalurgija , 2007,
Abstract: In the paper the results of the investigation on surface layer of carburized X150CrMoV12-1 tool steel are presented. Abrasive wearing of the surface was determined according the ASTM G77-98 method. The microstructure of the matrix and distribution of carbides were observed in a Scanning Electron Microscope (SEM). A correlation between the investigated parameters (microstructure/carbides distribution) was found.
The Physical Flow of Materials and the Associated Costs in the Production Process of a Rolling Mill
Holisz-Burzyńska, J.,Staniewska, E.,Budzik, R.
Metalurgija , 2007,
Abstract: Efficiency of resources use is, in a large extent, determined by the organization of production flow and the way of their control. The optimization of materials flow in the production process requires the identification of physical flows of goods and it cost. In the article the physical flow process of materials stream in the production process in one of Polish rolling mill and also its logistics analysis and cost analysis are presented.
The influence of changes of combustion gas temperature during flow around the horizontal cylinder on local Nu number
M. Górska,L. Szecówka,R. Budzik
Metalurgija , 2009,
Abstract: The article the influence of changes of combustion gas temperature during flow around of horizontal cylinder on local Nu number was presented. In order to test an influence of effect waste gas temperature cycle of experimental investigations were conducted. Experimental tests were carried out on a properly designed measuring cylinder furnished with a number of thermocouples embedded along the cylinder perimeter. The cylinder was made from stainless steel of known thermal conductivity, and was cooled on the outer side through a water cooling system. The cylinder was placed horizontally in a heating chamber equipped with an axially positioned gas burner fired with natural gas. Gas and air feeds were regulated with control valves, based on combustion gas analyzer data.
Possibilities of utilizing 3DP technology for foundry mould making
G. Budzik
Archives of Foundry Engineering , 2007,
Abstract: Possibilities of application of three-dimensional printing (3DP) technology for making casting prototypes are discussed. Three-dimensional printing enables making of foundry moulds for elements of complex shapes. The mould presented in the paper was printed with the use of Z510 Spectrum unit in the Car Technology Sp. z o.o. (Ltd. Co.) in Kraków. The basic material for printing foundry moulds is the ZCast 501 powder. This powder is a mixture of traditional molding sand, gypsum and supplementary ingredients. The mould is made in ZCast technology, and it enables casting of zinc, magnesium and aluminum alloys at max. pouring temperature of 1100°C. The paper describes research on the possibility to utilize a standard ZP14 powder for building a rotor blade casting moulds. The research has showed that the ZP14 powder may serve for printing foundry moulds, which should then be subjected to thermo-chemical treatment. Application of the basic ZPrint system powder permits a reduction in mould manufacturing costs.
Properties of made by different methods of RP impeller foundry patterns
G. Budzik
Archives of Foundry Engineering , 2007,
Abstract: This article presents the tests of properties of foundry patterns of turbocharger turbine impeller. Impellers prototypes were predestinated for casting by method losing patterns. There were carried out tests of these prototypes made by different methods of Rapid Prototyping (RP). Two impeller were made by growth methods: stereolitography (SLA) and three dimensional printing (3DP). One prototype was made by the method of Vacuum Casting as a wax casting. Tests were executed in the Department of Machine Design of Rzeszow University of Technology in cooperation with WSK PZL Rzeszow and Car Technology Krakow. First impeller was carried out by method of stereolitography on SLA 250 plant. That pattern was also used to carry out silicon matrix for casting of wax pattern. Next pattern was printed by three dimensional printer Z510 from the powder ZP14. Good removability of the pattern from the mould is particularly essential for impellers of small turbines with blades of small thickness of their section. All pattern were tested on their removability from the ceramic mould. The best melting properties had the wax pattern. Patterns made from resin SL5170 (SLA) and powder ZP14 (3DP) were removed in the process of burning but about 1% of soot was left in the mould.
The analysis of the possibility of the application of the casting waxes in the process RP
G. Budzik
Archives of Foundry Engineering , 2009,
Abstract: The article presents analysis of possibility of application of casting waxes in process of rapid prototyping of casting models in silicone the matrices. The researches were made on casting waxes applied to the manufacturing of precise casting models and also the model system. Testing waxes are intended nominally to the processing in process of the injection. The determining of possibility processing of waxes in silicone forms was purpose of researches. Researches concerned of whole manufacturing process i.e. the preparation of the form and wax, the filling of form and also the deforming. As a result of made researches the temperature of filling of matrix was determined. The main part of research process concerned determining of temperature of deforming for every with kinds of waxes. This is especially important in case of manufacturing of casting models of precise elements, which can be destroyed easily. In this purpose researches of the bending of waxen forms were made in the range of temperature 20-37oC. The processing parameters of casting waxes were determined as a result of made researches.
Geometric accuracy of wax bade models manufactured in silicon moulds
G. Budzik,H. Matysiak
Archives of Foundry Engineering , 2010,
Abstract: The article presents the test results of the geometric accuracy of wax blade models manufactured in silicon moulds in the Rapid Tooling process, with the application of the Vacuum Casting technology. In batch production casting waxes are designed for the manufacture of models and components of model sets through injection into a metal die. The objective of the tests was to determine the possibility of using traditional wax for the production of casting models in the rapid prototyping process. Blade models made of five types of casting wax were measured. The definition of the geometric accuracy of wax blade models makes it possible to introduce individual modifications aimed at improving their shape in order to increase the dimensional accuracy of blade models manufactured in the rapid prototyping process.
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