Springer Online Journal Archives 1860-2000
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Summary The effect of pre-steaming on moisture gradients, drying stresses and sets, and face checking was determined for Eucalyptus pilularis Sm. The effect of reconditioning on drying stresses and sets was also observed. Pre-steaming reduced moisture gradients from centre to surface by 12.2 percentage units during the first eight days drying, and by 5.2 percentage units over the full duration of the run. Face checking occurred during presteaming, but total length of checks at the end of drying was only 53% that of unsteamed boards. The decrease in moisture gradients and face checking implied that stress and set gradients were also reduced, although this could not be statistically confirmed. Reconditioning relieved drying stresses and sets.
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