Fundamentals of vertical density profile formation in wood composites. Part I. In-situ density measurement of the consolidation process

Wood and Fiber Science

Volumn 32, Issue 2, 2000, Pages 209-219

  Winistorfer, Paul M ^b   Moschler Jr , William W ^b   Wang, Siqun ^a   DePaula, Esteavo ^b   Bledsoe, Bobby L ^a  

^a UNIVERSITY OF TENNESSEE   (United States)

^b NONE

Author keywords

Consolidation; Density profile; In situ measurement; Medium density fiberboard (MDF); Moisture migration; Oriented strandboard (OSB); Pressing; Radiation; Wood composite

Indexed keywords

EID: 0000481455     PISSN: 07356161     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (18)

1. BOLTON, A. J., AND HUMPHREY, P. E. 1988. The hot pressing of dry-formed wood-based composites. Part I. A review of the literature, identifying the primary physical process and the nature of their interaction. Holzforschung 42(6):403-406.
2. DUEHOLM, S. 1996. Determination of density profiles of wood-based panels: From traditional off-line laboratory techniques to continuous, in-line, real-time monitoring. Pages 45-57 in T. M. Maloney, ed. Proc. 30th Particleboard/Composite Materials Symposium, Washington State University, Pullman, WA.
3. HAAG, W. 1992. Gluing, blending, spreading, and testing-Trends as to machinery and process control developments. Pages 59-68 in T. M. Maloney, ed. Proc. 26th Particleboard/Composite Materials Symposium, Washington State University, Pullman, WA.
4. HUMPHREY, P. E., AND A. J. BOLTON. 1989. The hot pressing of dry-formed wood-based composites. Part II. A simulation model for heat and moisture transfer, and typical results. Holzforschung 43(3):199-206.
5. KAMKE, F. A., AND L. J. CASEY. 1988. Fundamentals of flakeboard manufacture: Internal mat conditions. Forest Prod. J. 39:38-44.
6. LEMASTER, R., AND A. GREEN. 1992. The use of air-coupled AE sensors to measure density profiles in woodbased producers. Pages 59-68 in Proc. National Particleboard Association Pressline Technology Seminars, Charlotte, NC.
7. QUINTEK MEASUREMENT SYSTEMS, INC. 1999. Product Literature. Model QDP-01X Density Profiler. 201 Center Park Dr. Suite 1140, Knoxville, TN 37922.
8. SUCHSLAND, O. 1962. The density distribution of flakeboards. Michigan Agriculture Experiment Station. Quart. Bull. 45(1):104-121.
9. WANG, S. 1986. A study and application of density gradient of wood-based panel. Science Report of Postgraduate 1(1):3-6 (in Chinese).
10. _. 1987. A study of single-step hot pressing technology of oriented strand composite plywood. J. Nanjing Forestry Univ. (2):74-84 (in Chinese, English abstract).
11. _. 1992. Compare the hot pressing technology of wood based panel, Building Particleboard (3):25-29 (in Chinese).
12. _, AND P. M. WINISTORFER. 1998. Effects of stepclosure on the vertical density profile of wood composites. Page 163 in Proc. 32nd International Particleboard and Composite Materials Symposium, Washington State University, Pullman, WA.
13. _, AND _. 1999. Effect of species and its distribution on the layer characteristics of OSB. Submitted to Forest Prod. J.
14. _, _, W. W. MOSCHLER, AND C. M. HELTON. 1999a. Hot-pressing of oriented strandboard by step-closure. Submitted to Forest Prod. J.
15. _, _, T. M. YOUNG, C. M. HELTON. 1999b. Step-closing pressing of medium density fiberboard. Part 1: Influence on the vertical density profile. Holz Roh Werkst. (in-press).
16. WINISTORFER, P. M. 1992. Pressing strategies. Pages 19-25 in Proc. National Particleboard Association Pressline Technology Seminars, Charlotte, NC.
17. _, AND W. MOSCHLER. 1996. Dynamics of mat consolidation during pressing: What we've learned with our in-press radiation system for pressing wood composites. Pages 324-334 in Proc. Society of Experimental Mechanics, Nashville, TN.
18. _, W. XU, AND R. WIMMER. 1995. Application of a drill resistance technique for density profile measurement in wood composite panels. Forest Prod. J. 45(6): 90-93.