Journal of the Korea Furniture Society (한국가구학회지)

Korea Furniture Society (한국가구학회)
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Surface Hardness Improvement of Larch Wood Using Thermal-Compression

열압밀화를 이용한 낙엽송의 표면경도 개선

  • Hwang, Sung-Wook (Division of Wood Processing, Department of Forest Products, Korea Forest Research Institute) ;
  • Park, Sang-Bum (Division of Wood Processing, Department of Forest Products, Korea Forest Research Institute) ;
  • Suh, Jin-Suk (Division of Wood Processing, Department of Forest Products, Korea Forest Research Institute) ;
  • Kim, Jong-In (Division of Wood Processing, Department of Forest Products, Korea Forest Research Institute) ;
  • Hong, Seong-Cheol (Department of Wood Science & Technology, College of Agriculture & Life Science, Kyungpook National University) ;
  • Lee, Won-Hee (Department of Wood Science & Technology, College of Agriculture & Life Science, Kyungpook National University)
  • 황성욱 (국립산림과학원 임산공학부 목재가공과) ;
  • 박상범 (국립산림과학원 임산공학부 목재가공과) ;
  • 서진석 (국립산림과학원 임산공학부 목재가공과) ;
  • 김종인 (국립산림과학원 임산공학부 목재가공과) ;
  • 홍성철 (경북대학교 임산공학과) ;
  • 이원희 (경북대학교 임산공학과)
  • Received : 2012.07.09
  • Accepted : 2012.10.08
  • Published : 2012.10.25
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Abstract

This study was conducted to investigate the surface hardness of thermally-compressed larch wood by compression set and temperature. The surface hardness of thermally-compressed larch wood increased with increasing compression set and temperature. For compression set 60%, the specific gravity was increased as 0.93. However, the surface hardness was lower value as 31.1 N/$mm^2$ compared with a similar specific gravity of the tropical timber. For density profile, less than compression set 40%, compression was observed mainly surface area. On the other hand, more than 50%, density profile variation was reduced by compression of central part. Results of this study indicate that thermally-compressed larch wood can be replace some imported hardwoods such as oak or cherry. However, thermally-compressed larch wood was difficult to replace the tropical timber being imported in terms of surface hardness.

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