20.500.12556/RUL-108547 Izdelava železniških pragov na žagi Poganci pri Novem mestu Production of crossties on sawmill Poganci in Novo mesto Diplomska naloga je bila opravljena na Žagi Poganci pri Novem mestu, kjer iz bukovih pragovcev izdelujejo železniške pragove. Izbranih je bilo 50 pragovcev, ki so se med seboj razlikovali glede na njihov srednji premer. Izbranim pragovcem smo izračunali prostornino in določili napake. Iz pragovcev smo s tračnim žagalnim strojem izdelali žagan les v obliki pragov, desk različnih dimenzij in moralov. Z označevanjem žaganega lesa je bila zagotovljena sledljivost izdelkov od pragovca do končnega proizvoda. S primerjavo prostornine pragovcev in žaganega lesa smo izračunali velikost količinskega izkoristka žaganja. Povprečna velikost količinskega izkoristka žaganja je znašala od 58 % do 59 %. Na kakovost žaganega lesa so najbolj vplivale neprava črnjava, grče in razpoke. The information for the diploma paper was obtained on a sawmill Poganci near Novo mesto, where railway sleepers are made from beech sleeper wood. We have chosen 50 pieces of sleeper wood with different middle diameter. We have calculated the volume of the chosen sleeper wood and determined the mistakes in timber. Using the band was machine we cut the sleeper wood into cut wood shaped as sleepers, boards of different dimensions, and cut beams. Marking the cut wood has enabled the following of the products from sleeper wood to final product. By comparing the volume of the sleeper wood and the cut wood we were able to calculate the total quantitative efficiency. The average quantitative efficiency of cutting timber was from 58 % to 59 %. Irregular heartwood influenced the quality of cut wood most, followed by knots and cracks. bukev hlodovina železniški prag žagan les količinski izkoristek beech tree timber railway sleeper sawn wood quantitative yield true false false [F. J. Malus] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2019-07-06 07:45:16 2019-07-06 07:45:18 2022-08-20 03:47:05 0000-00-00 00:00:00 2019 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*83(043.2)=163.6 163990 5424038 6808.pdf 6808.pdf 1 D3DB8F11AF4C5F50C6C5218AA7042F3C 3d82bcb1811d133b28a58654a461cd36e98bdc3bdd57962f9b5932d775ed9ac6 a94a9e4f-a1b6-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=119511 6809.docx 6809.docx 1 BDA34BE6E87D5D731C2B561F564B2AED 350a4c48c077367557d2eb20b6f9a76e1f25205ecbc4a5d7717bb1e160a31efc a95b54f2-a1b6-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=119512 6810.docx 6810.docx 1 37A923F1383946E0E38CB152C49A4ED8 8e575bc015b769d3ddbb22b8d44e6abfe48264a509e886ceaec4089a206d715a a969a7d8-a1b6-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=119513 Biotehniška fakulteta 0 0 0