Structural Flakeboards and Composites 



2957 



3 4 5 



TIME (MINUTES) 



Figure 24-27. — Closed press time related to face and core moisture content (top), and 

 temperature (bottom) of hardwood flakeboard being hot pressed. Platen tempera- 

 ture 350°F, closing time 45 seconds, panel thickness 1/2-inch. Face flakes 0.015-inch- 

 thick and core flakes 0.025-inch-thick. Species mix comprised of 20 percent each of 

 white oak, southern red oak, hickory, sweetgum, and southern pine. (Drawing from 

 Study File FS-SO-3201-15, U.S. Department of Agriculture, Forest Service, Southern 

 Forest Experiment Station, Pinevilie, La.) 



