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Dolžinsko lepljenje sveže smrekovine : diplomsko delo - visokošolski strokovni študij = Finger jointing of green spruce : graduation thesis - higher professional studiesLauko, SimonRaziskovali smo trdnostne lastnosti dolžinsko spojene smrekovine (Picea abies Karst). Pripravili smo smrekove lamele z različno vlažnostjo in jih razvrstili v 3 vlažnostne razrede. V prvem so bile ... lamele z vlažnostjo okoli 46 %, v drugem 30 % in v tretjem 10 %. Lamele smo prežagali na pol in jih ponovno spojili s pomočjo zobatega spoja. Za lepljenje smo uporabili enokomponentno poliuretansko lepilo MITOPUR E20, ki ga proizvaja podjetje Mitol iz Sežane. Lepljence smo obdelali na dimenzije kot zahteva standard DIN 52 186, preseka 20 mm x 20 mm ter dolžine 470 mm. V sušilniku smo jih posušili na vlažnost okoli 14 %. Preizkuse smo izvajali na napravi za testiranje mehanskih lastnosti Zwick Z100. Ugotavljali smo modul elastičnosti in upogibno trdnost. Ugotovili smo, da je bilo izbrano lepilo primerno za spajanje mokre oziroma vlažne smrekovine. Upogibna trdnost je padala z naraščajočo vlažnostjo lesa pri lepljenju. Vrednosti modula elastičnosti pa so naraščale. Najbolj ugodne rezultate smo dobili pri lepljenju smrekovine z vlažnostjo 10 %.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [S. Lauko], 2010Language - slovenianCOBISS.SI-ID - 1818249
Author
Lauko, Simon
Other authors
Šernek, Milan |
Šega, Bogdan
Topics
les |
kompoziti |
lepljenje |
mehanske lastnosti |
smrekovina |
vlažnost lesa |
wood |
composites |
gluing |
mechanical properties |
spruce wood |
moisture content |
moisture content
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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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Shelf entry
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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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Lauko, Simon | ![]() |
Šernek, Milan | 16382 |
Šega, Bogdan | 13057 |
Source: Personal bibliographies
and: SICRIS
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