Autor: Kolczyk-Tylka, J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Identification of Gas Products from Pyrolysis Process of Waxes Used in Lost-Wax Casting Technology
Autorzy:: Żymankowska-Kumon, S.
Kolczyk-Tylka, J.
Powiązania:: https://bibliotekanauki.pl/articles/106933.pdf
Data publikacji:: 2018
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: lost-wax casting
foundry wax
gas chromatography
mass spectrometry
Opis:: Foundry waxes currently used in lost-wax casting technology are composed of paraffin, stearin, and – to a lesser extent – ceresin, polyethylene wax, and other natural and synthetic waxes. Most of these compounds are non-toxic; however, they may release aromatic hydrocarbons as a result of exposure to high temperatures. Based on a chromatographic analysis (pyrolysis gas chromatography-mass spectrometry, Py-GC/MS), the compounds that are separated from the popular wax mixtures used in foundries were evaluated (as well as the impact they may have on foundry workers). For this purpose, the three main stages of the process (wax, burnout, and pouring) were analyzed, and the appropriate test temperature was chosen (similar to the actual conditions during the process).
Źródło:: Journal of Casting & Materials Engineering; 2018, 2, 3; 53-56
2543-9901
Pojawia się w:: Journal of Casting & Materials Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Investigations of the Thickness of Protective Coatings Deposited on Moulds and Cores
Autorzy:: Jamrozowicz, Ł.
Kolczyk-Tylka, J.
Siatko, A.
Powiązania:: https://bibliotekanauki.pl/articles/380191.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: protective coating
coating thickness
coating viscosity
foundry core
foundry mold
powłoka ochronna
grubość powłoki
lepkość powłoki
rdzeń odlewniczy
masa odlewnicza
Opis:: This article presents measurements of the thickness of alcohol-based coatings on sand foundry cores and moulds. These coatings were applied using two methods, the dipping method and the painting method. For the purposes of the study, a zircon alcohol-based coating was prepared with three different levels of nominal viscosity; very thin at 10s, average at 20s, and thick at 30s. The coating was applied to a core made of quartz sand and furan resin. The cores were made of sand with three different grain sizes; d_L = 0.22 mm – fine sand, d_L = 0.33 mm medium sand, and d_L = 0.47 mm coarse sand. In the study, the thickness of the coating obtained to the core was measured immediately after application as well as after drying. Additionally, the extent of penetration into the intergranular spaces of the core matrix was measured. On the basis of this study, the impact of the grain size of the core matrix on the thickness of the coating and its penetration into the core was assessed. The thickness of coatings obtained using different application methods was also assessed.
Źródło:: Archives of Foundry Engineering; 2018, 18, 4; 131-136
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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