Temat: odlewnictwo - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Impact of Higher Temperature on Quartz Moulding Sand with Gypsum Binders
Autorzy:: Paduchowicz, P.
Stachowicz, M.
Granat, K.
Powiązania:: https://bibliotekanauki.pl/articles/382554.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: foundry
building gypsum
gypsum putty
pH
LOI
odlewnictwo
gips
spoiwo gipsowe
Opis:: This paper presents initial findings from research into the possibility of using gypsum binders in quartz moulding sand that could be used in the production of casting moulds and cores. For the purposes of the research two commercial types of gypsum were used as binders: building gypsum and gypsum putty. Dry components of moulding sand i.e. medium quartz sand and gypsum were mixed in proportion of 89/11 parts by weight. In order to achieve bonding properties for the binders, 5 parts by weight of water was added to the mixture of dry components. After 24 hours of adding water and mixing all the components, the moulding sand, naturally hardened, was subjected to high temperature. The moulding sand thus produced, i.e. with cheap and environmentally-friendly gypsum binders, was eventually analysed after heating (at temperatures of 300^oC, 650^oC and 950^oC) and cooling in order to determine changes in the following parameters: LOI – loss on ignition, chemical composition and pH. Moreover, investigated were bonding bridges, before and after the moulding sand was roasted. The research results revealed differences in the structure of bonding bridges and the occurrence of automatic adhesive destruction for both types of gypsum binders. For two types of moulding sands under the investigation of the LOI exceeded 2.59wt.% (with building gypsum) or 2.84wt.% (with putty gypsum) and pH increased to ca. 12 as a result of increasing roasting temperature from 300^oC to 650^oC. Next, roasting at 950^oC decrease value of LOI in both types of moulding sands. Moulding sand with builoding gypsum roasted at 950^oC revealed a return to the value of pH parameter measured prior to annealing.
Źródło:: Archives of Foundry Engineering; 2018, 18, 1; 81-86
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The Influence of Pressure Die Casting Parameters on the Mechanical Properties of AlSi11/10 Vol.% SiC Composite
Autorzy:: Konopka, Z.
Pasieka, A.
Powiązania:: https://bibliotekanauki.pl/articles/383001.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: composites
pressure die casting
mechanical properties
kompozyty
odlewnictwo ciśnieniowe
właściwości mechaniczne
Opis:: The paper presents the method of preparing a composite slurry composed of AlSi11 alloy matrix and 10 vol.% of SiC particles, as well as the method of its high-pressure die casting and the measurement results concerning the tensile strength, the yield point, the elongation and hardness of the obtained composite. Composite castings were produced at various values of the piston velocity in the second stage of injection, diverse intensification pressure values, and various injection gate width values. There were found the regression equations describing the change of mechanical properties of the examined composite as a function of pressure die casting process parameters. The conclusion gives the analysis and the interpretation of the obtained results.
Źródło:: Archives of Foundry Engineering; 2014, 14, 1; 59-62
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Tribological Properties of AlSi11-SiCp Composite Castings Produced by Pressure Die Casting Method
Autorzy:: Konopka, Z.
Pasieka, A.
Powiązania:: https://bibliotekanauki.pl/articles/379787.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: composites
pressure die casting
tribological properties
kompozyty
odlewnictwo ciśnieniowe
właściwości tribologiczne
Opis:: The measurement results concerning the abrasive wear of AlSi11-SiC particles composites are presented in paper. The method of preparing a composite slurry composed of AlSi11 alloy matrix and 10, 20% vol.% of SiC particles, as well as the method of its high-pressure die casting was described. Composite slurry was injected into metal mould of cold chamber pressure die cast machine and castings were produced at various values of the piston velocity in the second stage of injection, diverse intensification pressure values, and various injection gate width values. Very good uniform arrangement of SiC particles in volume composite matrix was observed and these results were publicated early in this journal. The kinetics of abrasive wear and correlation with SiC particles arrangement in composite matrix were presented. Better wear resistance of composite was observed in comparison with aluminium alloy. Very strong linear correlation between abrasive wear and particle arrangement was observed. The conclusion gives the analysis and the interpretation of the obtained results.
Źródło:: Archives of Foundry Engineering; 2014, 14, 3; 37-42
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Implementation of Nanoparticles in Materials Applied in Foundry Engineering
Autorzy:: Kmita, A.
Roczniak, A.
Powiązania:: https://bibliotekanauki.pl/articles/381634.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innovative technologies
nanoparticles
materials
foundry
innowacyjne technologie
nanocząsteczki
materiały odlewnicze
odlewnictwo
Opis:: The ceaseless progress of nanotechnology, observed in the last years, causes that nanomaterials are more and more often applied in several fields of industry, technique and medicine. E.g. silver nanoparticles are used in biomedicine for disinfection and polymer nanoparticles allow insulin transportation in pharmacology. New generation materials containing nanoparticles are also used in the chemical industry (their participation in the commercial market equals app. 53 %). Nanomaterials are used in electronics, among others for semiconductors production (e.g. for producing nanoink Ag, which conducts electric current). Nanomaterials, due to their special properties, are also used in the foundry industry in metallurgy (e.g. metal alloys with nanocrystalline precipitates), as well as in investment casting and in moulding and core sand technologies. Nanoparticles and containing them composites are applied in several technologies including foundry practice, automotive industry, medicine, dentistry etc. it is expected that their role and market share will be successively growing.
Źródło:: Archives of Foundry Engineering; 2017, 17, 3; 205-209
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Evaluation of 2D and 3D Surface Roughness of Die Castings from Alloy AlSi9Cu3
Autorzy:: Pałyga, Ł.
Stachowicz, M.
Granat, K.
Powiązania:: https://bibliotekanauki.pl/articles/382625.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: die casting
roughness
surface parameters
SEM
odlewnictwo ciśnieniowe
chropowatość
parametry powierzchniowe
Opis:: This paper presents the possibility of evaluating the 3D surface roughness of a raw die castings made from alloy AlSi9Cu3, group EN AB- 46000. Castings were produced on BUHLER H630-B die casting machine with various piston speed. The study was conducted on casting bracket for seatbacks office chair, whose surface do not require further machining to obtain adequate surface quality. In order to reduce the impact of possible surface mold roughness wear, the specimen has been taken from the places furthest away from the supply system. Evaluates of 3D surface roughness of specimens was performed on specialized software delivered with scanning electron microscope. After conducting a series of test on surface topography was evaluated roughness of raw castings produced with variable parameters of process control, such as piston speed during II Phase. It was found that the method used to measure 2D and 3D roughness parameters could be more practical in evaluating the quality of die castings, but it should be combined with the way their manufacturing and other destructive and non-destructive evaluation.
Źródło:: Archives of Foundry Engineering; 2015, 15, 1 spec.; 75-80
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: The Stand Adopted For Process Investigations Thermal Reclamation
Autorzy:: Łucarz, M.
Powiązania:: https://bibliotekanauki.pl/articles/380528.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: thermal reclamation
used sand
foundry engineering
regeneracja termiczna
masa zużyta
odlewnictwo
Opis:: The paper presents the analysis of construction solutions of some thermal reclamation equipment applied in used sand reclamation treatment as well as the experimental appliance constructed according to the author`s own idea. The experimental apparatus enables the sand grains to be regained when the machine works in either the horizontal or the vertical position. Different construction versions of the apparatus were prepared to provide a variety of working conditions for thermal reclamation treatment in order to obtain the reclaimed sand in the most efficient way. The possibility of choosing from among various set points of the appliance, such as the temperature of reclamation process, the time of thermal treatment cycle, the method of fluidization (cold or hot air) and other individual parameters characteristic of particular construction versions create the conditions for comparative research.
Źródło:: Archives of Foundry Engineering; 2013, 13, 1 spec.; 103-106
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Assessment of Core Sands Properties in Blowing Process
Autorzy:: Dańko, R.
Powiązania:: https://bibliotekanauki.pl/articles/381670.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: foundry
core
blowing process
core sand
odlewnictwo
rdzeń odlewniczy
masa rdzeniowa
Opis:: The effects of filling the core box cavity and sand compaction in processes of core production by blowing methods (blowing, shooting) depend on several main factors. The most important are: geometrical parameters of cavity and complexity of its shape, number, distribution and shape of blowing holes feeding sands as well as the venting of a technological cavity. Values of individual parameters are selected according to various criteria, but mostly they should be adjusted to properties of the applied core sand. Various methods developed by several researchers, including the authors own attempts, allow to assess core sands properties on the basis of special technological tests projecting the process into a laboratory scale. The developed criteria defining a degree or a filling ability factor provide a better possibility of assessing the core sand behaviour during flowing and core box filling, which indicate the value and structure of the obtained compacting decisive – after hardening – for strength and permeability. The mentioned above aspects are analysed – on the basis of authors’ own examinations - in the hereby paper.
Źródło:: Archives of Foundry Engineering; 2015, 15, 2 spec.; 13-16
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Evaluation of the Microwave Absorbing Effectiveness by the Selected Molding Sands Matrixes
Autorzy:: Stachowicz, M.
Granat, K.
Więcławek, R.
Powiązania:: https://bibliotekanauki.pl/articles/382514.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: foundry
microwaves
quartz sand
absorption
water
odlewnictwo
mikrofale
piasek kwarcowy
absorpcja
woda
Opis:: The paper presents the results of the absorption effectiveness measured for electromagnetic waves with a frequency of 2.45 GHz penetrating selected quartz mold and core sands matrixes. Research was conducted with a usage of the unique microwave slot line for assessing, on the basis of the measured parameters of looseness, the effectiveness of microwaves absorbing capacity by the matrixes of molding sands. Examinations were focused on the high-silica quartz matrixes from various mines with a different grain size composition and humidity. Usage of the unique measuring device, designed especially for this type of research, has made possibility to systematize knowledge of the dynamics and efficiency of microwaves absorption while penetrating humid matrix of molding sands. Analysis of the study results indicate, that the process of microwaves absorbing is affect, in addition to water located on the matrix grains surfaces, by the grain size distribution and the origin of the quartz sand.
Źródło:: Archives of Foundry Engineering; 2013, 13, 1 spec.; 175-180
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Overview of activities on the internet devoted to casting technology
Autorzy:: Wilk-Kołodziejczyk, D.
Regulski, K.
Dziaduś-Rudnicka, J.
Kluska-Nawarecka, S.
Powiązania:: https://bibliotekanauki.pl/articles/382912.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: komponent wiedzy
proces produkcyjny
odlewnictwo
metalurgia
media społecznościowe
wyszukiwanie internetowe
odlewnictwo metali
technologia odlewnicza
knowledge components
production process
foundry
metallurgy
social media
searching on internet
metal casting
casting technology
Opis:: Article present various forms of transfer of information available on the Internet. An attempt was made to show the possibility of such a selection of the knowledge sources that, taking into account user preferences, would arouse his interest, showing in parallel the intended substantive content. This commitment is shown in the context of the current assumptions of building a platform dedicated to support the needs of production processes in foundry and metallurgy.
Źródło:: Archives of Foundry Engineering; 2012, 12, 2; 245-250
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Studies on Aluminosilicate of Palygorskites Group Used as a Binder in Green Sands System
Autorzy:: Grabowska, B.
Drożyński, D.
Kaczmarska, K.
Mrówka, N.
Powiązania:: https://bibliotekanauki.pl/articles/382461.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: foundry engineering
binders
green sand system
aluminosilicates
palygorskite
attapulgite
odlewnictwo
spoiwo
glinokrzemiany
Opis:: The possibility of application of aluminosilicate from the palygorskite (attapulgite) group as a potential substitute for bentonite in green sand system application were evaluated. The effectiveness of the application of this aluminosilicate as a binder in sand grains was determined based on the results of the determination flowability, apparent density, permeability, compacability, wear resistance and compressive, tensile and shear strength of the green sands with attapulgite participation or with a mixture of bentonite-attapulgite. The results with the properties obtained for the green sand bonded by bentonite were compared. Based on these results, it was found that attapulgite as a main binder material in the green sand does not guarantee the respective properties of moulding (e.g. it was observed low green strength properties, high apparent density of mixture, low compaction and very low wear resistance). It was recognized that the natural form of attapulgite require modification in order to obtain the appropriate properties of moulding sands, which is the subject of future work within the scope of the development application of aluminosilicate in foundry industry.
Źródło:: Archives of Foundry Engineering; 2015, 15, 1 spec.; 31-36
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: The assessment of bell casting producibility based on computer simulation of pouring and solidification
Autorzy:: Nadolski, M.
Zyska, A.
Konopka, Z.
Łągiewka, M.
Karolczyk, J.
Powiązania:: https://bibliotekanauki.pl/articles/381931.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: bell casting
artistic casting
computer simulation
odlewanie dzwonu
odlewnictwo artystyczne
symulacja komputerowa
Opis:: The work estimates the possibility of modification of the traditional production method of bell castings taking into account calculations performed by NovaFlow&Solid simulation program. Changes are evaluated with regard to the arrangement of the shrinkage defects in castings, which are of influence on the acoustic and mechanical properties of castings.
Źródło:: Archives of Foundry Engineering; 2011, 11, 3 spec.; 141-144
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Badania nad możliwością modernizacji systemu sterowania odlewniczych maszyn ciśnieniowych
Research on Control System Modernization Possibilities of Pressure Die Casting Machines
Autorzy:: Pałyga, Ł.
Stachowicz, M.
Granat, K.
Powiązania:: https://bibliotekanauki.pl/articles/383330.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: odlewnictwo ciśnieniowe
modernizacja
sterowanie
pomiar parametrów zalewania
pressure die casting
modernization
control system
Opis:: W artykule przedstawiono efekty modernizacji systemu sterowania maszyny ciśnieniowej firmy BÜHLER, typ H630-B, w której zmieniono typ sterownika PLC na wydajniejszy i przystosowany do akwizycji danych pomiarowych. Do oceny korzyści wynikających z przeprowadzonej modernizacji posłużono się urządzeniem pomiarowym, które dzięki swojej specyficznej budowie pozwala na określenie wpływu stanu technicznego kokilarki na jakość odlewów wytwarzanych w technice modernizacji i diagnostyki maszyny. Na podstawie analizy wyników przeprowadzonych badań niszczących i nieniszczących wykonanych odlewów, możliwe było powiązanie parametrów ich wytwarzania z aktualnym stanem technicznym odlewniczej maszyny ciśnieniowej.
The article presents the effects of the modernization of the BÜHLER pressure casting machine control system, Type H630-B, in which the PLC controller was changed to more efficient and suitable for data acquisition. To assess the benefits of the modernization diagnostic device was used, which due to their specific elements allows to determine the impact of the technical state of die casting machine on the quality of castings made with an alloy EN AB-46000 (AlSi9Cu3). The possibilities of modernization and diagnostic equipment were shown. Based on the analysis of destructive and non-destructive research results of made castings, it was possible to determine a relation between the parameters of their production and the current technical condition of the pressure die casting machine.
Źródło:: Archives of Foundry Engineering; 2014, 14, 3 spec.; 55-60
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Stan zagadnienia w zakresie odlewania dużych odlewów strukturalnych ze stopów aluminium
The State of Art of Production of Automotive Structural Die Casted Elements
Autorzy:: Łuszczak, M.
Dańko, R.
Powiązania:: https://bibliotekanauki.pl/articles/380775.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: odlewnictwo ciśnieniowe
odlew strukturalny
stop aluminium
pressure die casting
structural casting
aluminium alloy
Opis:: Wobec wprowadzenia coraz bardziej rygorystycznych norm emisji spalin, współczesne samochody muszą cechować się coraz mniejszym spalaniem paliwa. Jedną z możliwości osiągnięcia tego celu jest zmniejszenie całkowitej masy auta, co może być uzyskane poprzez wykorzystanie aluminiowych odlewów strukturalnych, stanowiących odpowiedzialne części zawieszenia, stref zgniotu czy też karoserii samochodów. W artykule przedstawiono zarówno przyczyny, dla których odlewy strukturalne stają się coraz bardziej pożądane przez największych producentów motoryzacji na świecie, jak również aktualny stan zagadnienia na temat ich produkcji w procesie ciśnieniowego odlewania aluminium.
The paper presents the reasons for structural castings are becoming necessary by major automotive manufacturers in the world, as well as current issues regarding their production by the aluminum die-casting process.
Źródło:: Archives of Foundry Engineering; 2013, 13, 3 spec.; 113-116
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Analiza rozwoju systemów dozowania stopów aluminium w zimnokomorowych maszynach ciśnieniowych
Analysis of the Development of Dosing Systems of Aluminium Alloys in the Cold Chamber Die Casting Machines
Autorzy:: Kowalczyk, W.
Dańko, R.
Powiązania:: https://bibliotekanauki.pl/articles/381900.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: odlewnictwo ciśnieniowe
maszyna ciśnieniowa
stop aluminium
die casting
die casting machine
aluminum alloy
Opis:: W publikacji poddano analizie tradycyjne i automatyczne systemy dozowania stopów aluminium w zimnokomorowych maszynach ciśnieniowych dominujące w europejskim odlewnictwie. Omówiono ogólne cechy istniejących, automatycznych rozwiązań systemów dozowania oraz nowych rozwiązań, powiązanych z maszyną ciśnieniową. Przedstawiono także podejmowane przez producentów działania w zakresie dalszego rozwoju tych systemów.
The analysis of traditional and automated dispensing systems of aluminium alloys in cold-chamber die casting machines, prevalent in European foundries is presented in paper. The general characteristics of existing automated dispensing systems solutions, characterizing the functionality of new solutions in cooperation with the die casting machine, as well as the actions taken to further their development is presented.
Źródło:: Archives of Foundry Engineering; 2015, 15, 4 spec.; 73-78
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: The analysis of the influence of the polystyrene patterns shaping parameters on the resistance properties
Autorzy:: Pacyniak, T.
Buczkowska, K.
Bogus, W.
Powiązania:: https://bibliotekanauki.pl/articles/382906.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: odlewnictwo
tracona piana
styropianowy model odlewniczy
odlew
foundry
lost foam
polystyrene patterns
casts
Opis:: This work presents the technology of making foam plastics patterns used in casting as well as the final shaping stand. The analysis of the sintering process was carried out aiming at determining the influence of the pressure and the time of sintering on the flexural strength properties. The analysis of the research results confirmed that when the sintering pressure grows to the value of Pa =1,7 bar the flexural strength also increases, when the pressure value is higher than that, the degradation of the material takes place and the strength properties decrease.
Źródło:: Archives of Foundry Engineering; 2012, 12, 2; 227-234
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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