Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Drying Resistance of Some Softwoods Lumbers under Time Schedule

시간스케쥴을 적용한 수종(數種)의 침엽수(針葉樹) 제재품(製材品)의 건조저항(乾燥抵抗)

  • Jung, Hee-Suk (College of Agriculture & Life Sciences, Seoul National University) ;
  • Lee, Nam-Ho (College of Agriculture, Chonbuk National University) ;
  • Lee, June-Ho (College of Agriculture & Life Sciences, Seoul National University) ;
  • Kwon, Ju-Yong (College of Agriculture & Life Sciences, Seoul National University)
  • 정희석 (서울대학교 농업생명과학대학) ;
  • 이남호 (전북대학교 농과대학) ;
  • 이준호 (서울대학교 농업생명과학대학) ;
  • 권주용 (서울대학교 농업생명과학대학)
  • Received : 1997.04.18
  • Published : 1997.06.30
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Abstract

A relationship between drying resistance and moisture content was found for 24, 27 and 30mm thick boards, and 45, 51 and 57mm thick dimensions of Japanese larch. Dahurian larch and radiata pine in order to modify the kiln schedule by using time schedules. The amount of drying resistance for Dahurian larch lumber was the highest, and radiata pine lumber was the lowest, on the basis of the same moisture content range. Drying resistance increased curvilinearly as moisture content decreased, and was higher for thicker lumber than for thinner lumber, at a given moisture content. Combined drying resistance for the three board thicknesses and the three dimension thicknesses showed a comparatively strong for radiata pine and a Japanese larch, while a weak correlation for Dahurian larch as a function of two independent variables, thickness and moisture content of lumber, respectively.

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Acknowledgement

Supported by : 한국과학재단