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Wyszukujesz frazę "foundry technology" wg kryterium: Temat


Tytuł:
Możliwości określenia zawartości lepiszcza w masach formierskich przy użyciu pola elektromagnetycznego
Possibilities of Determination of the Binder Content in Sand Molds with the use of Electromagnetic Field
Autorzy:
Nowak, D.
Granat, K.
Opyd, B.
Więcławek, R.
Powiązania:
https://bibliotekanauki.pl/articles/382776.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
technologia innowacyjna
technologia odlewnicza
masa formierska
lepiszcze
mikrofale
innovative technology
foundry technology
moulding sand
binder
microwave
Opis:
W pracy zaprezentowano wyniki wstępnych badań nad możliwością określenia zawartości lepiszcza w klasycznych masach formierskich metodą mikrofalową. Przedstawione w pracy pomiary przeprowadzono z wykorzystaniem specjalnego stanowiska tzw. linii szczelinowej. Zawartość lepiszcza w masie formierskiej określano na podstawie badań mocy absorbowanej oraz mocy wyjściowej fali elektromagnetycznej. Jedną z głównych zalet proponowanej, nowej metody pomiaru zawartości lepiszcza jest krótki czas pomiaru.
This paper presents the results of a preliminary study of the possibility to determining binder content in conventional moulding sands using microwave method. Measurements presented in this paper were carried out using a special work station - microwave slot line. Binder content in the moulding sands was defined by analyzing power absorbed and output power of an electromagnetic wave. One of the main advantage of the suggested, new method of binder content measurement is a short measuring time.
Źródło:
Archives of Foundry Engineering; 2013, 13, 1 spec.; 121-124
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cast construction elements for heat treatment furnaces
Autorzy:
Piekarski, B.
Drotlew, A.
Powiązania:
https://bibliotekanauki.pl/articles/382333.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technology
innovative foundry material
heat treatment plant
innowacyjna technologia odlewnicza
innowacyjny materiał odlewniczy
zakład obróbki cieplnej
Opis:
The study presents sketches and photos of the cast creep-resistant components used in various types of heat treatment furnaces. The shape of the elements results from the type of the operation carried out in the furnace, while dimensions are adjusted to the size of the furnace working chamber. The castings are mainly made from the high-alloyed, austenitic chromium-nickel or nickel-chromium steel, selecting the grade in accordance with the furnace operating conditions described by the rated temperature, the type and parameters of the applied operating atmosphere, and the charge weight. Typical examples in this family of construction elements are: crucibles, roller tracks, radiant tubes and guides. The majority of castings are produced in sand moulds.
Źródło:
Archives of Foundry Engineering; 2011, 11, 3 spec.; 163-170
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electrical Properties of Multilayer Systems Composed of Foundry Tooling and Moulding Sand
Autorzy:
Gal, B.
Granat, K.
Powiązania:
https://bibliotekanauki.pl/articles/381474.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technology
microwaves
electrical properties
multilayer foundry system
innowacyjna technologia odlewnicza
mikrofale
właściwości elektryczne
system odlewniczy wielowarstwowy
Opis:
Within the research, selected multilayer technological systems created as combinations of water-glass containing moulding sand with foundry tooling, were characterised on the grounds of their electrical properties. By measuring resonance frequency and quality factor of a waveguide resonance cavity, real component of permittivity εr′ and loss tangent tgδ were determined for multilayer foundry systems with various qualitative and quantitative compositions. It was demonstrated that combination of a sandmix and foundry tooling with known dielectric properties results in a system with different physico-chemical properties, whose relation to the parameters of individual components of the system is undefined at this research stage. On the grounds of measurement results, theoretical value of microwave heating power, dissipated in unit volume of the selected multilayer foundry system, was determined. Knowledge of theoretical heating power and evaluation of physical, chemical and structural changes occurring in moulding sands exposed to microwaves in such a technological system makes a ground for empirical modelling of the process of microwave heating of foundry moulds and cores.
Źródło:
Archives of Foundry Engineering; 2017, 17, 2; 21-24
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of a New Innovative Ceramic Material for Investment Casting Technology
Autorzy:
Stefański, Z.
Izdebska-Szanda, I.
Angrecki, M.
Powiązania:
https://bibliotekanauki.pl/articles/381703.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technology
innovative foundry materials
investment casting technology
olivine sand
self-supporting mould
Innowacyjna technologia odlewnicza
innowacyjne materiały odlewnicze
odlewnictwo
forma odlewnicza
Opis:
The article presents the research results of a new ceramic material, in which olivine sand was used as the matrix. This new ceramic material was studied at the angle of its application in the investment casting technology. This material will be mainly used for preparing self-supporting moulds for castings made of aluminium and magnesium alloys, replacing the expensive material – molochite which has been used so far. The article presents the results of mineralogical research of olivine sand, as well as thermophysical research of the new ceramic material made on the olivine sand matrix. Comparative research of both materials was conducted, i.e. with the olivine and molochite matrix, then the assessment of the quality of the new ceramic material was made. What is more, the research results of the developed ceramics and its usefulness for the production of castings are presented.
Źródło:
Archives of Foundry Engineering; 2014, 14, 1 spec.; 51-56
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Microwave Heating of Protective Coatings Used in the Lost Foam Technology
Autorzy:
Opyd, B.
Granat, K.
Powiązania:
https://bibliotekanauki.pl/articles/382105.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technology
microwave
protective coating
lost foam
innowacyjna technologia odlewnicza
mikrofale
powłoka ochronna
tracona piana
Opis:
Presented are results of a preliminary research on determining a possibility to use microwave radiation for drying casting protective coatings applied on patterns used in the lost foam technology. Taken were measurements of permittivity εr and loss factor tgδ at 2.45 GHz, as well as attempts were made of microwave drying of a protective coating based on aluminium silicates, applied on shapes of foamed polystyrene and rigid polymeric foam. Time and results of microwave drying were compared with the results obtained by drying at 50 °C by the traditional method commonly used for removing water from protective coatings. Analysis of the obtained drying kinetics curves demonstrated that selection of proper operation parameters of microwave equipment permits the drying time to be significantly shortened. Depending on kind of the pattern material, drying process of a protective coating runs in a different way, resulting in obtaining different quality of the dried coating.
Źródło:
Archives of Foundry Engineering; 2015, 15, 2; 65-70
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Microwave Heating on Moulding Sand Properties with Gypsum Binder
Autorzy:
Paduchowicz, P.
Stachowicz, M.
Granat, K.
Powiązania:
https://bibliotekanauki.pl/articles/382976.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
foundry industry
foundry materials
foundry technology
microwave heating
gypsum
binding material
przemysł odlewniczy
materiały odlewnicze
technologia odlewnicza
ogrzewanie mikrofalowe
gips
materiał wiążący
Opis:
The paper presents results of initial research on the possibility of applying microwave radiation in an innovative process of making casting moulds from silica sand, where gypsum CaSO4∙2H2O was acting as a binding material. In the research were compared strengths and technological properties of moulding mixture subjected to: natural bonding process at ambient temperature or natural curing with additional microwave drying or heating with the use of microwaves immediately after samples were formed. Used in the research moulding sands, in which dry constituents i.e. sand matrix and gypsum were mixed in the ratio: 89/11. On the basis of the results of strength tests which were obtained by various curing methods, beneficial effect of using microwaves at 2.45 GHz for drying up was observed after 1, 2 and 5 hours since moisture sandmix was formed. Applying the microwaves for hardening just after forming the samples guarantees satisfactory results in the obtained mechanical parameters. In addition, it has been noted that, from a technological and economic point of view, drying the silica sand with gypsum binder in microwave field can be an alternative to traditional molding sand technologies.
Źródło:
Archives of Foundry Engineering; 2017, 17, 3; 97-102
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Possibility of utilizing thermosetting moulding sands by microwave heating
Autorzy:
Granat, K.
Nowak, D.
Stachowicz, M.
Pigiel, M.
Powiązania:
https://bibliotekanauki.pl/articles/380427.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technology
microwave heating
thermosetting moulding sand
innowacyjna technologia odlewnicza
nagrzewanie mikrofalowe
masa formierska termoutwardzalna
Opis:
The paper presents a semi-industrial reactor designed for utilisation of waste moulds and cores made of thermosetting moulding sands by microwave incinerating. It was found that a possibility exists of effective incinerating residues of this kind waste cores or moulds left after casting. The research evidences that the apparatus permits effective control of the applied microwave heating process. Preliminary tests of microwave heating indicated that incinerating waste moulds and cores made of industrially used moulding sands based on phenolic-formaldehyde resins is an effective method of their utilization. Application of microwave heating for incinerating waste moulds and cores containing synthetic resins as binders guarantees significant and measurable economical benefits resulting from reduced process time.
Źródło:
Archives of Foundry Engineering; 2011, 11, 3 spec.; 71-74
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Flexibility of Pusher Furnace Grate
Autorzy:
Słowik, J. A.
Drotlew, A.
Piekarski, B.
Powiązania:
https://bibliotekanauki.pl/articles/383197.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technology
innovative foundry material
heat treatment plant
pusher furnace
innowacyjna technologia odlewnicza
innowacyjny materiał odlewniczy
obróbka cieplna
piec przepychowy
Opis:
The lifetime of guide grates in pusher furnaces for heat treatment could be increased by raising the flexibility of their structure through, for example, the replacement of straight ribs, parallel to the direction of grate movement, with more flexible segments. The deformability of grates with flexible segments arranged in two orientations, i.e. crosswise (perpendicular to the direction of compression) and lengthwise (parallel to the direction of compression), was examined. The compression process was simulated using SolidWorks Simulation program. Relevant regression equations were also derived describing the dependence of force inducing the grate deformation by 0.25 mm ‒ modulus of grate elasticity ‒ on the number of flexible segments in established orientations. These calculations were made in Statistica and Scilab programs. It has been demonstrated that, with the same number of segments, the crosswise orientation of flexible segments increases the grate structure flexibility in a more efficient way than the lengthwise orientation. It has also been proved that a crucial effect on the grate flexibility has only the quantity and orientation of segments (crosswise / lengthwise), while the exact position of segments changes the grate flexibility by less than 1%.
Źródło:
Archives of Foundry Engineering; 2016, 16, 4; 137-140
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental Investigations on the Ejector Forces in the Die Casting Process
Autorzy:
Krischke, S.
Müller, S.
Schuchardt, T.
Kouki, Y.
Dilger, K.
Powiązania:
https://bibliotekanauki.pl/articles/382411.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technology
innovative foundry material
information technology
foundry industry
high pressure die casting
ejector force
innowacyjna technologia odlewnicza
innowacyjny materiał odlewniczy
technologia informatyczna
przemysł odlewniczy
odlewanie wysokociśnieniowe
Opis:
A measuring system was developed for the measurement of ejector forces in the die casting process. When selecting the sensor technology, particular care was taken to ensure that measurements can be taken with a high sampling rate so that the fast-running ejection process can be recorded. For this reason, the system uses piezoelectric force sensors which measure the forces directly at the individual ejector pins. In this way, depending on the number of sensors, it is possible to determine both the individual ejector forces and the total ejector force. The system is expandable and adaptable with regard to the number and position of the sensors and can also be applied to real HPDC components. Automatic triggering of the measurements is also possible. In addition to the measuring system, a device and a method for in-situ calibration of the sensors have also been developed. To test the measuring system, casting experiments were carried out with a real aluminium HPDC aluminium component. The experiments showed that it is possible to measure the ejector forces with sufficient sampling rate and also to observe the process steps of filling, intensification and die opening by means of ejector forces. Experimental setup serves as a basis for future investigations regarding the influencing parameters on the ejection process.
Źródło:
Archives of Foundry Engineering; 2018, 18, 4; 116-119
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Application for Infrared Camera in Analyzing of the Solidification Process of Al-Si Alloy
Autorzy:
Władysiak, R.
Kozuń, A.
Powiązania:
https://bibliotekanauki.pl/articles/381103.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technology
innovative foundry material
thermography
TDA method
silumin
microstructure
innowacyjna technologia odlewnicza
innowacyjny materiał odlewniczy
termografia
metoda ATD
mikrostruktura
Opis:
The paper presents the results of the crystallization process of silumin by the TDA thermographic method and the results of the cast microstructure obtained in the sampler TDA-10, that was cooling down in ambient air. The study was conducted for silumin AlSi11 unmodified. The work demonstrated that the use of thermal imaging camera allows for the measurement and recording the solidification process of silumin. Thermal curve was registered with the infrared camera and derivative curve that was calculated on the base of thermal curve have both a very similar shape to adequate them TDA curves obtained from measurements using a thermocouple. Test results by TDA thermographic method enable quantitative analysis of the kinetics of the cooling and solidification process of neareutectic silumin.
Źródło:
Archives of Foundry Engineering; 2015, 15, 3; 81-84
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania nad odnawialnością polimerowych spoiw odlewniczych
Studies on the renewability of polymeric binders for foundry
Autorzy:
Grabowska, B.
Kaczmarska, K.
Bobrowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/383131.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innowacyjny materiał odlewniczy
innowacyjna technologia odlewnicza
masa formierska
spoiwo polimerowe
sieciowanie spoiwa
innovative foundry material
innovative foundry technology
moulding sand
polymer binder
Opis:
W niniejszej pracy przedstawiono wycinek badań nowych polimerowych spoiw odlewniczych na przykładzie spoiwa BioCo2 z uwzględnieniem problemu jego odnawialności. Omówiono wyniki badań strukturalnych (FT-IR) dla spoiwa BioCo2 przed i po usieciowaniu oraz badań wytrzymałości na zginanie [...] utwardzonej masy formierskiej świeżej, jak i odnowionej wiązanej spoiwem BioCo2. Sieciowanie spoiwa, jak też utwardzanie masy przeprowadzono na drodze fizycznej (promieniowanie mikrofalowe, temperatura). Na podstawie otrzymanych wyników badań wykazano, że istnieje możliwość przywrócenia pierwotnych właściwości wiążących spoiwa BioCo2. Po usieciowaniu spoiwa, jak też po jego utwardzeniu w masie formierskiej właściwości pierwotne można uzyskać poprzez uzupełnienie składu masy o odpowiednią wyznaczoną stechiometrycznie ilość wody. Stwierdzono, że po procesie odnowienia spoiwo BioCo2 nie traci swojej mocy wiązania.
In this paper the results of studies of polymeric binders on the example of the new BioCo2 binder, including the problem of its renewability, are presented. The results of structural studies (FT-IR) for the BioCo2 binder before and after crosslinking, and bending strength tests […] fresh and renewed cured molding sands with BioCo2 binder are discussed. The cross-linking binder and curring of moulding sand was carried out by physical agents (microwave radiation, temperature). On the basis of obtained results was shown that it is possible to restore the initial properties of the adhesive of BioCo2 binder. The initial properties of moulding sand can be achieved, after the cross-linking binders and after curing in the moulding sands with bioCo2 binder , by supplementing the moulding sand composition by the appropriate amount of water.
Źródło:
Archives of Foundry Engineering; 2012, 12, 1s; 47-52
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ charakteru chemicznego osnowy i spoiwa na właściwości mas ze spoiwami organicznymi
Influence of the chemical character of a sand grains and binder on properties of moulding sands with organic binding agents
Autorzy:
Holtzer, M.
Drożyński, D.
Bobrowski, A.
Mazur, M.
Isendorf, B.
Powiązania:
https://bibliotekanauki.pl/articles/382955.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innowacyjny materiał odlewniczy
innowacyjna technologia odlewnicza
masa sypka
masa samoutwardzalna
żywica furfurylowa
innovative foundry material
innovative foundry technology
self hardening sand
furan resin
Opis:
W artykule zamieszczono wyniki badań wpływu rodzaju osnowy piaskowej (piasek kwarcowy, chromitowy i oliwinowy) na właściwości mas (wytrzymałość [...], ścieralność S, przepuszczalność Pu oraz żywotność Ż) przy zastosowaniu spoiw organicznych o charakterze kwaśnym i zasadowym. Najkorzystniejsze właściwości miały masy, w których osnowa i spoiwo miały najbardziej zbliżony charakter chemiczny (piasek kwarcowy i żywica furanowa). Natomiast w miarę wzrostu różnicy charakteru chemicznego osnowy i żywicy właściwości mas znacznie pogarszały się i w skrajnym przypadku, jakim był układ piasek oliwinowi – żywica furanowa masa nie uzyskiwała nawet minimalnych wymaganych parametrów.
The results of investigations of the kind of the sand grains (high-silica, chromite and olivine sand) on moulding sands properties when organic binding agents of an acidic and basic character were applied, are given in the paper. Moulding sands, in which a sand grains and binding agent were of a similar chemical character (high-silica sand and furan resin), exhibited the best qualities. As the difference of the chemical character of the sand grains and binder was increasing the properties of moulding sands significantly worsened. In the extreme case, which constituted the system: olivine sand and furan resin the moulding sand did not reach even the minimum of the required parameters values.
Źródło:
Archives of Foundry Engineering; 2012, 12, 1s; 69-74
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of time and pressure of forming a pattern on mechanical properties
Autorzy:
Pacyniak, T.
Buczkowska, K.
Kaczorowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/382163.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technology
innovative foundry material
foundry engineering
lost foam
polystyrene pattern
innowacyjna technologia odlewnicza
innowacyjny materiał odlewniczy
przemysł odlewniczy
tracona piana
styropianowy model odlewniczy
Opis:
In this paper, the technology of forming patterns on a research station equipped with an autoclave A-600 of Polish company GROM is presented. This study was conducted to determine the influence of pressure and time of forming a pattern on the bending strength. Analysis of the results confirmed that bending strength increases with increasing the pressure. The time of forming a pattern has a similar effect.
Źródło:
Archives of Foundry Engineering; 2011, 11, 3 spec.; 151-156
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Production of Plaster Molds with Patternless Process Technology
Autorzy:
Pastirčák, R.
Sládek, A.
Kucharčíková, E.
Powiązania:
https://bibliotekanauki.pl/articles/379940.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technology
innovative foundry material
automation in foundry
robotics in foundry
Patternless process technology
plaster thermomold
aluminium alloy
innowacyjna technologia odlewnicza
innowacyjny materiał odlewniczy
automatyka w odlewnictwie
robotyka w odlewnictwie
technologia Patternless
stop aluminium
Opis:
The work deals with technology Patternless process that combines 3 manufacturing process mold by using rapid prototyping technology, conventional sand formation and 3D milling. It's unconventional technology that has been developed to produce large-sized and heavy duty castings weighing up to several tons. It is used mainly in prototype and small batch production, because eliminating production of models. The work deals with the production of blocks for making molds of gypsum and gypsum drying process technology Thermomold. Into blocks, where were made cavities by milling were casted test castings from AlSi10MgMn alloy by gravity casting. At machining of the mold cavity was varied feed rate of tool of cemented carbide. Evaluated was the surface roughness of test castings, that was to 5 micrometers with feed from 900 to 1300 mm/min. The dimensional accuracy of castings was high at feed rate of 1000 and 1500 mm/min did not exceed 0.025 mm.
Źródło:
Archives of Foundry Engineering; 2015, 15, 2; 91-94
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of a New Tool Material for High Pressure Die Casting
Autorzy:
Herman, A.
Zikmund, P.
Tatíček, F.
Powiązania:
https://bibliotekanauki.pl/articles/382710.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technology
innovative foundry material
metallography
die material
HPDC technology
wear resistant alloy
innowacyjna technologia odlewnicza
innowacyjny materiał odlewniczy
metalografia
odlewanie ciśnieniowe
stop odporny na ścieranie
Opis:
The paper describes existing requirements for tool materials. In the light of experience with these supplied materials, we have demonstrated their considerable influence on the life of molds for die casting technology. From this research came the evaluation methodology of these tool materials which has been used for directing the development of a new material. Based on the new regulation of the chemical composition a sample was casted and forged after that. Then was determined the process of heat treatment and from a block of this material a mold insert was produced. This insert is now being tested in production.
Źródło:
Archives of Foundry Engineering; 2015, 15, 2; 23-28
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł

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