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Wyszukujesz frazę "plastic factor" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Ocena możliwości oznaczenia granicy plastyczności metodą penetrometru stożkowego
Possibility of application of fall cone method for plastic limit determination
Autorzy:
Jaśkiewicz, K.
Wszędyrówny-Nast, M.
Powiązania:
https://bibliotekanauki.pl/articles/2074275.pdf
Data publikacji:
2014
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
granica plastyczności
metoda penetrometru stożkowego
współczynnik plastyczności
test laboratoryjny
plastic limit
fall cone test
plastic factor
laboratory tests
Opis:
The plastic limit of soils was first described by Atterberg in 1911. The thread-rolling test became one of the standard tests of soil mechanics. In recent years this method has been the subject of much criticism. This paper reviews the original method of plastic limit determination as proposed by Atterberg and the fall cone methods for determining at the same time both the liquid and the plastic limits of soils. The tests were performed on 748 samples representing a wide range of soil type with different clay content ranging from 4 to 79%.
Źródło:
Przegląd Geologiczny; 2014, 62, 10/2; 588--593
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The analysis of influence on friction factor at constant force for marine pump shafts after finishing treatment
Autorzy:
Labuda, W.
Charchalis, A.
Powiązania:
https://bibliotekanauki.pl/articles/243518.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
plastic tooling
burnishing
stainless steel
angular momentum pump
friction factor
Opis:
Angular momentum pumps are very often used in cooling circuits of medium and high power engines, power plant boilers as well as bilge, ballast and fire installations. Such an extensive use of angular momentum pumps on board is connected with their numerous advantages. However during operation the wear of marine hull, the rotor and shaft seals takes place. The research attempts to increase the service life of shafts. The article presents the research results referring to the analysis of the influence of finish treatment (finishing turning, grinding, burnishing) on the friction factor of steel applied to marine pump shafts. The research was performed on a roller 39 mm in diameter made of 304L stainless steel. The finish tooling of pump shaft pins was carry out on a universal centre lathe. The finish turning process was carried out by means of a WNMG WF 080408 Sandvik Coromant cutting tool with replaceable inserts. The grinding process was performed by grinding attachment for lathes. The 1-80x10x32-99C 80-N V grinding wheel was used for the process. The process of burnishing was done by SRMD single roll burnishing tool by Yamato. The burnishing process was carried out at the following technological parameters: burnishing force 1.1 kN, burnishing speed 35 m/min, feed 0.13 mm/rev. In addition, the influence of the number of burnishing tool passes on the friction factor was determined. The paper aimed at defining the influence of burnishing on service conditions by: testing electrochemical corrosion, friction wear and contact fatigue. The work presented the research results of friction factor tests of the samples after finish turning, grinding and burnishing. In addition, the influence of the burnisher passes number on the friction factor was determined. The experiment was performed on block – roll tester machine.
Źródło:
Journal of KONES; 2013, 20, 2; 245-251
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
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