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Kvaliteta bukove hlodovine in izkoristek pri luščenju furnirja : diplomsko delo (visokošolski strokovni študij) = The quality of beech wood and exploitation of peeled veneer : graduation thesis (higher professional studies)Mihič, PeterSpremljali smo kakovost lesa bukve (Fagus sylvatica L.) v procesu proizvodnje luščenega furnirja od prevzema in krojenja hlodovine, luščenja furnirja, krojenja na mokrih škarjah, sušenja in krojenja ... na suhih škarjah. Spremljali smo izgube in predlagali rešitve za njihovo zmanjšanje. Podatki o prevzemu hlodovine na skladišču surovin in razvrščanje v kakovostne razrede kažejo, da se kakovost hlodovine v zadnjih 5 letih nekoliko poslabšuje. Analiza odčelkov,ki nastajajo pri krojenju hlodovine, kaže, da se največji izmet pojavi zaradi čelnih razpok, zaradi sprostitve notranjih napetosti. Računalniško vodeno krojenje hlodovine bi zmanjšalo izmet. Pri računalniško vodenem luščenju nastopi največji izmet zaradi zaokrožitve hlodov, ostankov od luščenja in zaradi dolžinske nadmere krojenih hlodov. Pri krojenju furnirja na mokrih škarjah avtomatski optični čitalniki zaznajo le napake, ki jih je mogoče presvetliti, ne pa napak v barvi ali teksturi lesa. Slednje odpravljamo pri krojenju na suhih škarjah, ko je furnir že posušen. Pri računalniško vodenem sušenju furnirja na valjčnem pretočnem sušilniku volumskokrčenje furnirja znaša 12,6 %, kar je v mejah pričakovanega. Kakovost posušenega furnirja močno odraža kakovost surovine, saj napake zaradi notranjih napetosti, tenzijskega lesa in grč v postopku sušenja povzročajo gubanje, zvijanje in pokanje furnirja. Krojenje suhega furnirja je odvisno od namena uporabe. Furnirji za zunanje sloje morajo biti kvalitetnejši in brez napak.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [P. Mihič], 2006Language - slovenianCOBISS.SI-ID - 1403785
Author
Mihič, Peter
Other authors
Čufar, Katarina |
Gornik Bučar, Dominika |
Gorišek, Željko
Topics
bukev (Fagus sylvatica L.) |
hlodovina |
furnir |
luščenje |
izkoristek |
beech (Fagus sylvatica L. |
log |
veneer |
peeling the veneer |
exploitation
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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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Mihič, Peter | ![]() |
Čufar, Katarina | 02937 |
Gornik Bučar, Dominika | 10340 |
Gorišek, Željko | 05732 |
Source: Personal bibliographies
and: SICRIS
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