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Vpliv strukture zunanjega sloja na natezno trdnost trislojne iverne plošče : diplomsko delo (visokošolski strokovni študij) = Influence of a surface layer structure on surface soundness at 3-layer particleboard : graduation thesis (higher professional studies)Rogina, Matej, 1977-Struktura zunanjega sloja trislojne iverne plošče ima velik vpliv na natezno trdnost zunanjega sloja. Da bi ugotovili vpliv strukture na omenjeno lastnost, smo uporabili plošče izdelane iz 3 ... različnih frakcij (0.237, 1, 1.5) in 3 različnih lesnih vrst (hrasta Quercus robur L., bukve Fagus silvatica L., smreke Picea abies Karst. L.). Zgradba srednjega sloja je bila pri vseh ploščah enaka. Izmerili smo vrednosti nateznih trdnosti pri izbranih lesnih vrstah in frakcijah iveri. Največje povprečno dosežene vrednosti natezne trdnosti zunanjega sloja smo ugotovili pri hrastu, srednje pri smreki, najmanjše pa pri bukvi. Uporaba finejših frakcij vpliva na večjo natezno trdnost v zunanjem sloju plošče le pri ploščah iz lesne vrste bukve in smreke. Iverne plošče, izdelane iz hrasta, dosežejo največjo natezno trdnost v zunanjem sloju pri frakciji iveri 1 mm, kjer je tudi vitkost iveri največja. Natezna trdnost plošč, v zunanjem sloju izdelanih iz bukve ali smreke, se povečuje z večanjem specifične površine iverja, večanjem prostorninske mase in z zmanjševanjem debeline zunanjega sloja. Za doseganje največjih nateznih trdnosti plošč iz smrekovih in bukovih iveri je primerno uporabiti frakcijo 0.237 mm.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [M. Rogina], 2003Language - slovenianCOBISS.SI-ID - 1065353
Author
Rogina, Matej, 1977-
Other authors
Medved, Sergej |
Šernek, Milan
Topics
iverna plošča |
iverje |
zunanji sloj |
natezna trdnost |
hrast |
bukev |
smreka |
particleboard |
particle |
surface layer |
surface soundness |
oak |
beech |
spruce
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Library/institution |
City | Acronym | For loan | Other holdings |
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BF, Department of Wood Science and Technology, Lj. | Ljubljana | BFLES |
reading room 1 cop.
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Year | Impact factor | Edition | Category | Classification | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Rogina, Matej, 1977- | ![]() |
Medved, Sergej | 15410 |
Šernek, Milan | 16382 |
Source: Personal bibliographies
and: SICRIS
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