Izvorni znanstveni članak

https://doi.org/10.5552/drind.2016.1527

Cutting Power during Milling of Thermally Modified Pine Wood

Andrzej Krauss ; Sveučilište bioloških znanosti u Poznanju, Fakultet drvne tehnologije, Odjel za strojeve za obradu drva i elemente strojeva, Poznanj, Poljska
Magdalena Piernik ; Sveučilište bioloških znanosti u Poznanju, Fakultet drvne tehnologije, Odjel za strojeve za obradu drva i elemente strojeva, Poznanj, Poljska
Grzegorz Pinkowski ; Sveučilište bioloških znanosti u Poznanju, Fakultet drvne tehnologije, Odjel za strojeve za obradu drva i elemente strojeva, Poznanj, Poljska

Sažetak

The paper presents experimental testing results of cutting power of thermally modified wood of Scots pine (Pinus sylvestris L.) during lengthwise milling. The process of heat treatment was performed in the atmosphere of superheated steam, at temperatures of 130, 160, 190 and 220 °C, maintaining an identical heating time of 4 h for all modification variants. Cutting power was determined during milling of the radial surface of modifi ed and non--modified samples. It was calculated as the difference of power used by a milling machine during wood machining and at idling. Based on the results of measurements, it was found that, in the case of modified wood, cutting power decreases with an increase in modifi cation temperature (the dependence being linear) and increases with an increase in the working engagement. At temperatures exceeding 160 °C, the power required for milling of modified wood is lower than cutting power for non-modified wood. The experiment indicated a significant reduction of cutting power with an increase in wood modification temperature. It was also found that an increase in the working engagement results in an increase of cutting power both in thermally modifi ed and non-modified wood.

Ključne riječi

woodworking; thermal modification; cutting; lengthwise milling; power consumption; softwood; Pinus sylvestris L

Hrčak ID:

166744

URI

https://hrcak.srce.hr/166744

Datum izdavanja:

30.9.2016.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.807 *