Details

Peskanje kot tehnika umetnega staranja lesa
ID Skerbiš, Jernej (Author), ID Petrič, Marko (Mentor) More about this mentor... This link opens in a new window

.pdfPDF - Presentation file, Download (9,46 MB)
MD5: 42B75FB172F5A6912248611F5D273CE8

Abstract
Peskanje je tehnika površinske obdelave, pri kateri je končni rezultat odnašanje materiala s površine. Radialno in tangencialno orientirane vzorce izbranih lesnih vrst, štirih iglavcev in trinajst listavcev, smo obdelali v peskalni komori. Na podlagi predhodnega poizkusa smo za abrazivno sredstvo izbrali beli korund granulacije (425-500) μm raster. Obdelane profile vzorcev smo opazovali na makroskopskem – okularnem in mikroskopskem nivoju s SEM. Merili smo hrapavost profilov na elektronskem mikroskopu in jih primerjali s predhodno izmerjenimi trdotami ranega in kasnega lesa obravnavanih lesnih vrst. Ugotavljali smo izgubo debelin in določali izgubo mas za vzorce pred postopkom obdelave in po njem. Definirali smo tudi ustreznost izbranih lesnih vrst za umetno staranje s postopkom peskanja. Izbrane vrste iglavcev so kazale boljše učinke kakor obravnavane vrste listavcev. Difuzno porozni listavci so se izkazali za manj primerne od venčasto poroznih, čeprav so bili tudi ti deloma ustrezni. Preizkušance smo obdelali z raztopino železovega (II) sulfata in tako polno imitirali staranje lesa. Posivele površine so tako lesu nadele staran videz, v primeru uspešnejših vrst pa popolnoma star – dotrajan videz.

Language:Slovenian
Keywords:les, umetno staranje, peskanje, korund
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:BF - Biotechnical Faculty
Publisher:[J. Skerbiš]
Year:2025
PID:20.500.12556/RUL-170842 This link opens in a new window
UDC:630*829.13
COBISS.SI-ID:243003139 This link opens in a new window
Publication date in RUL:18.07.2025
Views:272
Downloads:28
Metadata:XML DC-XML DC-RDF
:
Copy citation
Share:Bookmark and Share

Secondary language

Language:English
Title:Sandblasting as a technique for the artificial ageing of wood
Abstract:
Sandblasting is a surface treatment technique in which the final result is the removal of material from the surface. We processed radial and tangential patterns of the selected wood species of four conifers and thirteen deciduous trees in a sandblasting chamber. Based on the preliminary experiment, we chose white corundum with a grain size of 425-500 μm as the abrasive. We observed the processed sample profiles at the macroscopic – ocular and microscopic level using SEM. We measured the roughness of the profiles on an electron microscope and compared it with the previously measured hardness of early and late wood of the wood species in question. We determined the loss of thickness and mass for samples before and after the treatment process. We also defined the suitability of the selected wood species for artificial ageing using the sandblasting process. Selected coniferous species showed better effects than the deciduous species. Diffuse porous hardwoods proved to be less suitable than ring-porous hardwoods, although the latter were also partially suitable. We treated the test subjects with a solution of ferrous (II) sulphate to fully simulate the ageing of wood. The greying of the surfaces gives the wood an aged appearance, and in the case of more successful species, a completely worn-out appearance.

Keywords:wood, artificial aging, sandblasting, corundum

Similar documents

Similar works from RUL:
Similar works from other Slovenian collections:

Back