Autor: Náprstková, Nataša - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Tribological studies of monolithic drawing dies for the production of reinforcing wires used in construction
Autorzy:: Náprstková, Nataša
Kruzel, Robert
Dembiczak, Tomasz
Powiązania:: https://bibliotekanauki.pl/articles/31342642.pdf
Data publikacji:: 2022
Wydawca:: Politechnika Częstochowska
Tematy:: drut zbrojeniowy
ciągarki
zużycie ścierne
rebar wires
drawing diesfor
abrasive wear
Opis:: Cold drawn products are widely used in the construction industry. Drawn products are obtained by a drawing process in which the most important tool is the drawing tool. Drawn products include wire, bar and pipe. The material used in this study was a drawing die mesh made of sintered carbide, grade H10S. The abrasive wear analysis of prepared samples was carried out using the ball on disc method with a ZrO2 ceramic ball. Hardness measurements were carried out using the Vickers method in accordance with the PN-EN 23878:1996 standard. The resistance to brittle fracture was determined based on the length of the measurement of cracks formed at the corners of the impression.
Źródło:: Budownictwo o Zoptymalizowanym Potencjale Energetycznym; 2022, 11; 23-30
2299-8535
2544-963X
Pojawia się w:: Budownictwo o Zoptymalizowanym Potencjale Energetycznym
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Specific Cutting Conditions of 100Cr6 Steel Grinding and Selected Final Roughness Parameters
Autorzy:: Náprstková, Nataša
Novák, Martin
Sviantek, Jan
Powiązania:: https://bibliotekanauki.pl/articles/102739.pdf
Data publikacji:: 2020
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: hardened steel
final surface
roughness
grinding
stal hartowana
powierzchnia końcowa
chropowatość
szlifowanie
Opis:: Grinding of hardened steels is often an important used technology at finishing. Products made from these materials in mechanical engineering are often used, and a quality of the workpiece surface roughness after grinding is one of the important parameters that to us speaks about the quality of the machining process. The paper deals with the influence of the selected cutting conditions when grinding bearing steel 100Cr6 (EN 10027–1) on their machined surface roughness.
Źródło:: Advances in Science and Technology. Research Journal; 2020, 14, 2; 184-189
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Analyses of calcium influence on the AlSi9CuMnNi alloy
Autorzy:: Náprstková, Nataša
Kraus, Pavel
Cais, Jaromír
Stančeková, Dana
Miturska, Izabela
Powiązania:: https://bibliotekanauki.pl/articles/957898.pdf
Data publikacji:: 2018
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: alloy
modification
calcium
machining
chip
stop
modyfikacja
wapń
obróbka
żeton
Opis:: Treatment of metal alloys is one of the ways to affect the properties of the material. The article describes an experiment realized at FPTM UJEP when was experimentally studied the influence of alloys AlSi9CuMnNi calcium modification on some of its properties. The alloy was modified with various amounts of calcium and subsequently machining. Also hardness was measured in the resulting alloys. Machining was performed under certain cutting conditions. After machining the obtained chip was evaluated. Chip was evaluated for its shape, length and amount of chips per 100 g. Devices in FPTM laboratories were used to prepare experimental casts and to evaluate hardness and chips, like the melting furnace LAC K70/13, hardness tester Ernst AT 250X or microscope Olympus SZX 10. Experimental quantities of calcium was 0.05, 0.1 and 0.15 wt. %. Presented experiments are part of the extensive research undertaken at Faculty of Production Technologies and Management at Jan Evangelista Purkyně University in Ústí nad Labem.
Źródło:: Advances in Science and Technology. Research Journal; 2018, 12, 3; 32-38
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: An Impact of Technological Conditions on Surface Burning in Grinding of the Orbit
Autorzy:: Stančeková, Dana
Mrázik, Jozef
Rybicka, Iwona
Náprstková, Nataša
Kraus, Pavel
Powiązania:: https://bibliotekanauki.pl/articles/101908.pdf
Data publikacji:: 2018
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: grinding
orbit
quality
burning
szlifowanie
orbita
jakość
palenie
Opis:: A process of quality development helps us reveal concrete deficiences, an analysis of their origin and realization of required modifications that are needed to solve a concrete problem. One of the aims of quality development of production in bearing industries is to find out an impact of tchnological conditions to form burning of surfaces in grinding of orbits of bearing rings. We try to describe an origin of the problem, to find reasons of burned surfaces in a process of grinding and to propose such technological conditions to avoid above-stated problems and to produce the least possible number of non-identical workpieces. To lower a number of burnings in grinding of the orbit to zero percentage is not real, however, we have to try to get a minimal number of parts with damaged surface.
Źródło:: Advances in Science and Technology. Research Journal; 2018, 12, 4; 19-27
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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