ABOUT THE IMPROVING THE TECHNIQUE OF TIMBER PRODUCTS QUALITY ASSESSMENT
Abstract and keywords
Abstract (English):
In the study 100 boards of each cross-section have been measured with their subsequent certification and calculating the Spearman rank correlation coefficients on the principle “each with each”. Further data processing showed the existence of interdependencies between the location of defects on various sides of the timber cross-section. As a result of the research, data has been obtained allowing to change the current approach to sorting timber and to base normalization and quality assessment not on all four sides of timber, as being currently sorted, but only on one face and one edge.

Keywords:
timber, wood defects, quality assessment.
Text
Publication text (PDF): Read Download
References

1. Borovikov A.M. Kachestvo pilomaterialov [Quality lumber]. Moscow, 1990, 256 p. (In Russian).

2. Zadrauskayte N.O. Modelirovanie operatsiy otsenki kachestva i poperechnogo raskroya pilomaterialov: Dis. kand. tehn. nauk. [Modeling quality assessment operations and cross-cut lumber. Dis. PhD in Engineering]. Arkhangelsk, 2009, 146 p. (In Russian).

3. Karmadonov A.N. Sostoyanie i perspektivy povysheniya kachestva produktsii iz drevesiny [State and prospects of improving the quality of wood products].Polzunovskiy vestniк [Polzunovskyvestnik], 2004, no.2, pp. 225-229. (In Russian).

4. Kopeykin A.M. Perspektivy razvitiya tekhnologii lesopileniya [Prospects for the development of sawmilling technology]. Moscow, 1989, 104 p. (In Russian).

5. Kopeykin A.M., Deryagin R.V. Tekhnologiya lesopil'no-derevoobrabatyvayushchikh proizvodstv [The technology of sawing and woodworking industries]. Vologda, 2013, 95 p. (In Russian).

6. Prokof'ev G.F., Miklovtsik N. Yu. Pilenie drevesiny na lesopil'nykh ramakh i povyshenie ego effektivnosti v voprosakh i otvetakh [Sawing wood in the sawmill frames and increase its efficiency in questions and answers]. Arkhangelsk, 2011, 142 p. (In Russian).

7. Tarasova O.G., SaldaevaE.Yu., Tsvetkova E.M. Otsenka kachestva rezonansnykh materialov [Evaluation of the quality of the resonant materials]. Fundamental'nye issledovaniya [Fundamental researches], 2014, no. 6, pp. 490-494. (In Russian).

8. Ulasovets V.G. Tekhnologicheskie osnovy proizvodstva pilomaterialov [Technological bases of lumber production]. Ekaterinburg, 2002, 510 p. (In Russian).

9. Surikova J. Interaction of surface roughness of sawn timber and dimren-sion timber. Forest.add Wood Technology, 2004, no 55, pp.539-543.

10. Szimani R., McDonald K. Defect detection in lumber: state of the art. Forest Products Journal, 1998, Vol. 31, no. 11, pp. 34-44.

11. Vuorilehto Jaakko. Quelity yield capability of a breakdown sawing process. Forest Products Journal, 2002, Vol. 52, no. 4, pp. 77-81.


Login or Create
* Forgot password?