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Your search for foundry resulted in 51 matches...

THE THERMAL ANALYSIS OF POLYSTYRENE FOUNDRY MODEL


The article presents the results of thermogravimetric (TG) investigations of a polystyrene foundry model. The study was conducted for three polystyrenes - Owipian (Syntos Oświęcim), copolymer PS and PSX (France)....

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CONVERSION COATINGS ON MAGNESIUM ALLOY DIE CASTINGS PART 1: THE EFFECT OF TECHNOLOGICAL PARAMETERS OF THE PRESSURE DIE CASTING PPROCESS ON THE QUALITY OF CASTINGS MADE FROM THE AZ91 ALLOY


The article presents the results of research on the selection of optimum technological parameters of the hot-chamber die casting machine operation to make castings in AM50 magnesium alloy, coated next with the deco...

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EFFECT OF ULTRASOUNDS ON LOW-ENERGY PROCESSES AND ELECTROLYTIC CONDUCTIVITY OF MOULDING DUST WASTE SUBJECTED TO ADVANCED OXIDATION


The article presents the basic characteristics of the pollutants emitted in the process of foundry mould manufacture. A method to reduce harmful emissions through the application of advanced oxidation was described...

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DEVELOPMENT OF TECHNOLOGY TO MANUFACTURE „MODIFIED BENTONITE” USED IN PRODUCTION OF STEEL CASTINGS WITH SPECIAL REGARD TO CASTING SURFACE QUALITY


The article presents the most important results of the research, development and implementation studies carried out under one of the Target Projects as a result of cooperation between the CERTECH Technical and Comm...

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SELECTED PROBLEMS OF A TECHNOLOGY OF THE AZ91 MAGNESIUM ALLOY MELT TREATMENT


As expected, the increasing demand for magnesium alloy castings has already become a fact. Considering this situation, a rich program of the studies on this particular subject has been initiated and put into operat...

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IDENTIFICATION BY DSH POWDER METHOD OF CRYSTAL PHASES OF SILICA IN DUST EMITTED FROM SAND FOUNDRY


In view of the documented pathogenic effect on human health of dust containing crystalline silica, an attempt has been made to identify different variations of polymorphic silica in samples of dust emitted from fou...

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EFFECT OF HEAT TREATMENT ON THE MECHANICAL PROPERTIES OF GS-20Mn5 CAST STEEL ASSIGNED FOR OPERATION AT LOW TEMPERATURES


The study formed a part of industrial (applied) research executed under Target Project ROW-II-403/2008 at MAGNUS-NORD in Toruń. The aim of the study was to select the heat treatment parameters ensuring the require...

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EFFECT OF OXIDE NANOCOATING ON SURFACE TENSION MEASUREMENTS OF PURE TIN


Surface tension of liquid tin under high vacuum was measured by the technique of large drop, using a versatile set of apparatus for high temperature testing of the properties of liquid metals and alloys. Two proced...

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STUDIES ON THE PROPERTIES IMPROVEMENT AND APPLICATION OF NEW INORGANIC BINDERS USED IN THE MANUFACTURE OF ENVIRONMENT-FRIENDLY MOULDING AND CORE SANDS


The article gives the results obtained in a fragment of the studies, carried out under a statutory activity, on optimising of the foundry sand technology with new modified inorganic binders, chemically bonded and C...

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RECYCLING OF WASTE FLY ASH FORMED DURING COMBUSTION OF HARD COAL FOR USE IN MOULDING MIXTURES MANUFACTURE


The article is a compilation of the most important results obtained during execution of own research project regarding the possibility of using fly ash formed during combustion of hard coal as a base granular material ...

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EVALUATING THE FEASIBILITY OF MAKING ALUMINIUM ALLOY NANOMODIFIERS BY THE METHOD OF MECHANICAL ALLOYING


Nanomaterials extend the range of their application in human activities. The past few years have faced a considerable increase of interest in various aspects of the application of nanotechnology in liquid phase met...

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MICROADDITIONS OF BORON AND VANADIUM IN ADI. PART 2. OWN INVESTIGATIONS


In the second part of the study, describing the role of vanadium and boron microadditions in the process of structure formation in heavy-walled castings made from ADI, the results of own investigations were present...

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NEW COAL DUST SUBSTITUTES FOR BENTONITE MOULDING SANDS USED IN MANUFACTURE OF CASTINGS FROM MALLEABLE IRON AND ALUMINIUM ALLOYS


The article discusses the most important results of research, development and implementation works conducted under Target Projects in years 2006-2007 at the two Polish foundries, i.e. „Radom" Fittings Factory...

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Technical and design study of the use of rapid prototyping technique to make an art casting of Medal commemorating the 65th Anniversary of the establishment of Foundry Research Institute in Cracow


Steps have been taken to make an art casting - a medal commemorating the 65th Anniversary of the establishment of the Foundry Research Institute in Cracow, using a rapid prototyping technique. The most important technological operations from a 2D ...

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STUDY OF FILTRATION CHARACTERISTICS OF THE EXPERIMENTAL CERAMIC LAYERS


One of the main parameters determining proper course of the pattern evaporation process, which takes place in parallel with pouring of the foundry mould with metal, are properties of the ceramic coating applied on a po...

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A NOVEL METHOD FOR THE OXYGEN ACTIVITY MEASUREMENT APPLIED IN CONTROL OF THE DUCTILE IRON MANUFACTURING PROCESS


The objective of the present study was to evaluate a method for the measurement of oxygen activity in liquid cast iron to predict the cast iron properties after solidification. A series of experimental melts were made, testing the activity of oxyg...

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HIGH-QUALITY FOUNDRY BENTONITE MADE FROM THE RAW DRIED MATERIAL AND SELECTED FRACTIONS FORMED IN THE PRODUCTION OF HYGIENE SORBENTS


The paper presents the results of laboratory and industrial tests undertaken in order to develop and implement in foundry production the high-quality bentonite made from the raw dried material and selected fractions formed in the production of hyg...

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STUDIES OF ODOUR NUISANCE IN INVESTMENT FOUNDRY


The emission of odours associated with the activities of various industrial plants and facilities is treated as a nuisance, and not as a factor harmful to humans and the environment. The smell, even when subjectively perceived as pleasant, with a ...

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ANALYSIS OF THE STATE OF STRESS IN CAST BODIES, COVERS AND WEDGES OF THE WEDGE GATE VALVES USED IN GAS NETWORKS


Numerical analysis was carried out to establish the operating stress distribution in softsealed gate valves cast from ductile iron EN-GJS-400-15 for the gas network of PE pipes. The analysis was carried out with ANSYS software, based on data and d...

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SCIENTIFIC DATABASES CENTER AS A BASIS AND SUPPORT FOR RESEARCH IN THE FOUNDRY RESEARCH INSTITUTE. IMPLEMENTATION OF IT SYSTEM


The paper presents a range of functionality of a copyright application, the main objective of which was to create an information database and the database management system. The system was developed for the implementation of strategies to optimize...

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TREATMENT OF SELECTED FOUNDRY WASTE USING BIODEGRADABLE METHOD (PRELIMINARY RESEARCH)


This paper presents the applicability of Bio Activ PH biopreparation in the treatment of toxic substances (phenol, formaldehyde) in selected types of waste mouldings and core laboratory scale. This method has not been used for this type of waste s...

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THE ASSESSMENT OF CHANGES OF THE STRUCTURE OF DUCTILE CAST IRON DEPENDING ON THE TIME AND TEMPERATURE OF THE METALLURGIC PROCESS


The results of technological tests (chemical composition, solidification curves, microstructure) of ductile cast iron smelting in the Foundry Research Institute in an induction furnace. In the case of crystallization of spheroidal graphite no long...

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Reclamability of moulding sands with new inorganic binders for non-ferrous castings


The article presents results of an investigation which constitutes a section of research under the project POIG.01.01.02-00-015/09 "Advanced materials and technologies", one of the aims which is the introduction of new ecological inorganic binders...

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The application of bentonite in classical moulding sands


The article presents results of laboratory tests to develop a new generation of foundry hybrid bentonite. Hybrid bentonite is intended for use as binder for synthetic moulding sands and sandmixes. In the previous practice foundry bentonite was a p...

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The application of Integrated Computational Materials Engineering (ICME) in foundry practice


This article presents the latest tendencies within the scope of the application of computer simulation in the process of developing new solutions, including solutions in foundry practice. The functioning of Integrated Computational Materials Engin...

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The ecological aspect of moulding sands with new inorganic binders in the process of pouring moulds with liquid metal


One of the factors which influence development tendencies within the scope of moulding sands used in foundry practice is environmental protection. Hence, while assessing technologies, the composition of utilised materials and emissions of harmful ...

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The research of innovative mixtures for plaster moulds used for artistic castings


Research was carried out on the technological properties of plaster mixtures developed at the Foundry Research Institute. Developed were mixtures of ceramic compounds in which the basic material was synthetic plaster. ...

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The research of innovative mixtures for plaster moulds used for artistic castings


Research was carried out on the technological properties of plaster mixtures developed at the Foundry Research Institute. Developed were mixtures of ceramic compounds in which the basic material was synthetic plaster. ...

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The ecological and material-saving technology for producing brake blocks with stable parameters of quality. Part 1. Technology modernization using computer simulation


The presented article is the first in the series, which presents research related to the improvement of technology for producing brake blocks for the railway industry in the Spomel foundry in Lębork.The cooperation with the Foundry Research...

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Research problematics of casting technology machines and equipment


The article discusses the research problematics of machines and equipment for casting technologies, with the consideration of the scope of research performed in Poland in the second half of the twentieth century at main domestic university facilit...

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The effect of the addition of circulating scrap on the tensile properties of die cast magnesium alloy


Recycling of magnesium alloys is a complex issue not only because of their high reactivity and flammability even below melting temperature, but primarily because of a lack of equipment and experience in foundries. Nonetheless the environmental fac...

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The ecological and material-saving technology for producing brake blocks with stable parameters of quality Part 2. Verification of modernized technology under real conditions


The presented article is the second in the series, which presents research related to the improvement of technology for producing brake blocks for the railway industry in the Spomel foundry in Lębork. The cooperation with the Foundry Research Ins...

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Development of innovative method to procedure chemically active nano-coatings for moulds and cores


Tests were conducted to develop a new generation of functional nano-coatings used in the foundry industry. The research focused on the introduction of modern and innovative coatings based on nanoparticles of cast elements and active chemical compo...

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Aromatic compounds in waste gases formed during thermal decomposition of foundry binders


The paper presents the results of analysis of gases formed under the impact of high temperature acting on moulding sands with the addition of selected organic resins and hardeners, commonly used in foundries as binders for these sands. As a resear...

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Assessment of quartz wettability by the ecological foundry binder modified with nanoparticles of metal oxides


The results of studies of quartz wettability by an ecological foundry binder are presented. Water glass modified with nanoparticles of metal oxides, such as: MgO, Al2O3 and ZnO in organic solvents (methanol or propanol) was u...

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Simulation of the volume and distribution of air entrapped by liquid metal in a test mould for the pressure die casting process


Computer programs are now a common tool aiding the engineer’s work on structure design. The design of foundry moulds used in the pressure die casting process, based on the casting design and effectively utilising the ability to create 3D ima...

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Choice of material for the working parts of machines operating in municipal wastewater treatment plants


In the research part of this study, several types of materials were proposed, including ADI (Austempered Ductile Iron) subjected to four different types of heat treatment, using cast manganese steel and cast nickel-copper steel. The use of these m...

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Comparison of parameters of the granulation process of dust waste from sand reclamation


The results of studies of the process of pressure-free granulation of foundry dust were described, including dust generated in the mechanical reclamation of waste bentonite sand (Dust 1), dust generated in the dry mechanical reclamation of waste s...

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The effect of wetting agent on the parameters of dry moulding silica sands bonded with sodium water glass


An attempt has been made to determine the effect of the addition of an agent wetting the surface of silica sand grains, introduced in order to increase the hardening efficiency of selected physical methods applied to the ecological foundry sands b...

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CastExpert system for casting defect diagnostics


The investigations of the CastExpert system have been conducted at the Foundry Research Institute for many years now, including the following: perfecting the internal structure of the system and diagnostic procedures, enriching the knowledge base ...

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Processes of pyrolysis and their effect on cast quality and working conditions


The article discusses the thermal processes undergone by the sand mould in contact with the liquid casting alloy. Depending on the character of the atmosphere in the mould, this can be the process of combustion or pyrolysis (when there is no oxyge...

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Casting in ancient literature


The paper indicates the existence of many references to casting in the ancient literature. Their analysis allows one to enrich the knowledge of the beginnings and the history of the development of casting - one of the oldest technical areas of hum...

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Analysis of non-metallic inclusions in AZ91 alloy casts with process foundry return in high-pressure die casting


The article presents research results of the process foundry return influence in the AZ91 alloy charge on the change in the structure of castings made by the high-pressure casting method, with special consideration of the formation of non-metallic...

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Optimization of grain refinement and modification of the eutectic in hypo- and transeutectic Al-Si alloys


The procedures of grain refinement and modification of a silicon eutectic in hypo- and transeutectic silumins belong to important factors shaping their microstructure as well as physico-mechanical and technological properties. Due to this fact, th...

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The use of Py-GC/MS (pyrolysis/gas chromatography/mass spectroscopy) in the analysis of foundry binders: alkaline phenolic resol resin


The article presents the results of the pyrolysis of resin, the fast hardener as well as cured resin used in the ALPHASET technology. It is an alkaline phenolic resin of the resol type cured with an ester mixture. The pyrolysis was performed at 90...

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A comparison of the oxygen, nitrogen and hydrogen content in ductile iron castings and their effect on microstructure and mechanical properties


Two different spheroidization methods were compared in terms of the effect they may have on gas content (oxygen, nitrogen and hydrogen) in ductile iron castings and process efficiency.Two methods of cast iron treatment were investigated, i.e...

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High temperature wettability and reactivity between molten Mg in contact with Ni substrate


The paper focuses on the experimental investigation of high temperature wetting behaviour of liquid pure Mg during a contact heating on Ni substrate by the sessile drop method. High temperature wettability test was performed by the ...

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Selected casting processes in the aspect of their effect on the environment protection


The article discusses the impact of selected operations of the casting production technological process on the workplace environment, as well as on the external environment. The casting production is associated with technological operati...

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Application of 3D printing technology to make the core of casting mould and dimensional control using a 3D scanner


The aim of the work was to develop and model individual elements of casting technology for the casting of a ventilated brake disc using CAD program: SolidWorks, followed by printing a core using a 3D LS ONE printer from Sand Made Lt...

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Selected methods of testing protective coatings applied on casting moulds and cores


This article presents selected research methods related to protective coatings used for sand moulds and cores in the foundry industry. The research methodology has been divided into studies of the technological properties of sand moulds and cores ...

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Instructions for Authors


INSTRUCTIONS FOR AUTHORS (pdf) Copyright Statement (pdf)   ...

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