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Wyświetlanie 1-4 z 4
Tytuł:
Welcome to the Journal of Casting and Materials Engineering
Autorzy:
Grabowska, B.
Górny, M.
Brzeziński, M.
Jakubski, J.
Bobrowski, A.
Kaczmarska, K.
Powiązania:
https://bibliotekanauki.pl/articles/106971.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
wstęp
nota edytorska
introduction
editorial
Źródło:
Journal of Casting & Materials Engineering; 2017, 1, 1; 1
2543-9901
Pojawia się w:
Journal of Casting & Materials Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal Reclamation Process of the Spent Moulding Sand with the Polymer BioCo2 Binder
Autorzy:
Grabowska, B.
Łucarz, M.
Kaczmarska, K.
Powiązania:
https://bibliotekanauki.pl/articles/382132.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
spent sand
polymeric binder BioCo
thermal analysis
thermal reclamation
thermal reclaimer
zużyta masa
spoiwo polimerowe BioCo
analiza termiczna
rekultywacja
Opis:
The results of the thermal reclamation investigations of the spent moulding sand with the polymer BioCo2 binder, are presented in the paper. The reclamation process of the quartz matrix was carried out on the basis of the author's own method of selecting the reclamation temperature. On the bases of the performed thermo-gravimetric analysis of the binder the temperature range required for the efficient thermal reclamation was indicated. In order to confirm the assumption the thermal reclamations were performed at a temperature determined by the TG and - for comparisons - at a lower and higher temperature. During the reclamation process samples of the reclaim were taken for testing ignition losses in order to determine the process efficiency. The correctness of the assumed method of selecting the temperature range of the thermal reclamation of spent moulding sand with the polymer BioCo2 binder was confirmed.
Źródło:
Archives of Foundry Engineering; 2014, 14, 3 spec.; 90-94
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies of Poly(Acrylic Acid-co-Maleic Acid) Sodium Salt Intercalated Montmorillonite
Autorzy:
Grabowska, B.
Cukrowicz, S.
Kurleto-Kozioł, Ż.
Kaczmarska, K.
Drożyński, D.
Sitarz, M.
Bobrowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/382199.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
foundry
hybrid materials
montmorillonite
lustrous carbon
intercalation
odlewnia
materiały hybrydowe
montmorylonit
węgiel
Opis:
The intercalation into interlayer spaces of montmorillonite (MMT), obtained from natural calcium bentonite, was investigated. Modification of MMT was performed by the poly(acrylic acid-co-maleic acid) sodium salt (co-MA/AA). Efficiency of modification of MMT by sodium salt co-MA/AA was assessed by the infrared spectroscopic methods (FTIR), X-ray diffraction method (XRD) and spectrophotometry UV-Vis. It was found, that MMT can be relatively simply modified with omitting the preliminary organofilisation – by introducing hydrogel chains of maleic acid-acrylic acid copolymer in a form of sodium salt into interlayer galleries. A successful intercalation by sodium salt of the above mentioned copolymer was confirmed by the powder X-ray diffraction (shifting the reflex (001) originated from the montmorillonite phase indicating an increase of interlayer distances) as well as by the infrared spectroscopy (occurring of vibrations characteristic for the introduced organic macromolecules). The performed modification causes an increase of the ion exchange ability which allows to assume that the developed hybrid composite: MMT-/maleic acid-acrylic acid copolymer (MMT-co- MA/AA) can find the application as a binding material in the moulding sands technology. In addition, modified montmorillonites indicate an increased ability for ion exchanges at higher temperatures (TG-DTG, UV-Vis). MMT modified by sodium salt of maleic acid-acrylic acid copolymer indicates a significant shifting of the loss of the ion exchange ability in the direction of the higher temperature range (500–700°C).
Źródło:
Archives of Foundry Engineering; 2019, 4; 67-75
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal Deformation of Moulding and Core Sands with an Inorganic Binder Containing a Relaxation Additive
Autorzy:
Bobrowski, A.
Drożyński, D.
Jakubski, J.
Szumera, M.
Kaczmarska, K.
Grabowska, B.
Powiązania:
https://bibliotekanauki.pl/articles/381739.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
moulding sand
inorganic binder
geopolymer binder
thermal deformation
dilatometric studies
masa formierska
spoiwo nieorganiczne
spoiwo geopolimerowe
odkształcanie termiczne
badania dylatometryczne
Opis:
The paper presents the results of an investigation of the thermal deformation of moulding sands with an inorganic (geopolymer) binder with a relaxation additive, whose main task is to reduce the final (residual) strength and improves knocking-out properties of moulding sand. The moulding sand without a relaxation additive was the reference point. The research was carried out using the hot-distortion method (DMA apparatus from Multiserw-Morek). The results were combined with linear deformation studies with determination of the linear expansion factor (Netzsch DIL 402C dilatometer). The study showed that the introduction of relaxation additive has a positive effect on the thermal stability of moulding sand by limiting the measured deformation value, in relation to the moulding sand without additive. In addition, a relaxation additive slightly changes the course of the dilatometric curve. Change in the linear dimension of the moulding sand sample with the relaxation additive differs by only 0.05%, in comparison to the moulding sand without additive.
Źródło:
Archives of Foundry Engineering; 2018, 18, 4; 93-98
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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