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Title:MERILNA NEGOTOVOST TRDOTE JEKLENEGA GRANULATA
Authors:ID Urh, Janja (Author)
ID Goršek, Andreja (Mentor) More about this mentor... New window
Files:.pdf VS_Urh_Janja_2014.pdf (5,43 MB)
MD5: 4049A0E90BCD721EEF6F20FF0E081016
 
Language:Slovenian
Work type:Undergraduate thesis
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Preučevali smo merilno negotovost trdote jeklenega granulata AMS 230 H in AMS 230 R. Poglavitna razlika med omenjenima granulatoma je vrednost trdote. Jekleni pesek AMS 230 H je v primerjavi z AMS 230 R trši. Merjenje trdote smo izvedli na dveh različnih aparaturah. Ena od aparatur je ročno vodena, medtem ko je upravljanje z drugo skoraj v celoti avtomatizirano. Poskuse smo opravili z Vickersovo metodo, z obremenitvijo s silo 9,807 N. Z analizo rezultatov smo ugotovili, da je merilna negotovost jeklenega granulata AMS 230 R manjša, v primerjavi z merilno negotovostjo granulata AMS 230 H. Na podlagi vseh meritev smo odkrili, da sta obe aparaturi zelo natančni, saj je njuna merilna negotovost primerljiva.
Keywords:jeklo, jekleni pesek, toplotna obdelava jekla, trdota, trdota po Vickersu, merilna negotovost
Place of publishing:Maribor
Publisher:[J. Urh]
Year of publishing:2014
PID:20.500.12556/DKUM-43795 New window
UDC:669.141.23(043.2)
COBISS.SI-ID:17853206 New window
NUK URN:URN:SI:UM:DK:SJI64YMZ
Publication date in DKUM:28.03.2014
Views:2977
Downloads:257
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
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Secondary language

Language:English
Title:MEASUREMENT UNCERTAINTY OF STEEL GRANULATE HARDNESS
Abstract:We have examed the uncertainty of the hardness of the steel granulate H AMS 230 and AMS 230 R. The main difference between these two granulates is the value of hardness. Steel grit AMS 230 H is harder compared to AMS 230 R. Hardness tests was were performed on two different aparatus. One of the measuring aparatus is operated manualy, while the other one, almost fully automatic. Experiments were performed with Vickers method, with a burden force of 9.807 N. By analyzing the results, we found that the uncertainty of the steel granulate AMS 230 R is smaller in comparison with the granulate AMS 230 H. On the basis of the measurement, we have discovered, that both equipment are very accurate, since their uncertainty is quite comparable.
Keywords:steel, steel grit, steel heat treatment, hardness, hardness by Vickers, measurement uncertainty


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