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| Title | Publication | Publish Year |
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Potential sources of variation that influence the final moisture content of kiln-dried hardwood lumber
Excessive variability in the final moisture content (MC) of hardwood lumber may have a significant impact on secondary wood processing and final product performance. Sources of final MC variation during […]
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Forest Products Journal | 2004 |
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Pre-twisting during sawing results in straight studs
Warp in lumber is a serious problem for the building industry. In particular, material from small-diameter logs experiences excessive twist. This paper presents a new sawing technique to minimize the […]
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Forest Products Journal | 2006 |
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Precision end trimming to reduce drying degrade
A relatively new practice in hardwood lumber processing that may lead to significant increases in raw material yield and reductions in raw material costs is precision end trimming. Precision end […]
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Hardwood Symposium Proceedings | 2000 |
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Predicting Moisture Content in Douglas-Fir and Ponderosa Pine Boards
Clear lengths of green Douglas-fir and ponderosa pine boards were obtained from various Missoula sawmills. The material was primarily flat sawn, cut from the outermost log surfaces, and, as a […]
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Forest Products Journal | 1972 |
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Predrying Before Press-Drying to Reduce Drying Defects in Hardwoods
A major technical problem in press-drying hardwood lumber from the green condition is the nearly certain occurrence of major drying defects. A new approach is suggested in this paper where […]
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Forest Products Journal | 1982 |
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Prefabricated Dry Kiln Buildings
The newest dry kiln buildings are the insulated, aluminum-paneled, prefabricated kilns. The aluminum wall and roof panels are each built as a complete aluminum envelope with an insulated core and […]
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Forest Products Journal | 1956 |
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Prefreezing Alone and Combined with Presteaming in the Drying of Redwood Dimension
The effect of prefreezing, alone and combined with presteaming, was evaluated in the drying of redwood heartwood dimension. Several different drying experiments were conducted. It was determined that the combination […]
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Forest Products Journal | 1971 |
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Prefreezing Effects on Three Hardwoods
Black cherry, American elm, and white oak 1-inch boards prefrozen at -14?F. for 24 hours and kiln-dried shrunk less than end-matched unfrozen boards. Radial, tangential, and volumetric shrinkage and induced […]
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Forest Products Journal | 1972 |
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Prefreezing Reduces Shrinkage and Alters Sorption in Black Walnut
Black walnut (Juglans nigra L.) heartwood and sapwood was prefrozen green at 6 temperatures from ?F to -320?F to test the effect of prefreezing on hygroscopicity, shrinkage, and extractives availability. […]
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Forest Products Journal | 1972 |
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Preharvest Drying of Logging Residues
Logging residues are being utilized or being considered for fuel throughout the United States. Their use will increase substantially as oil, coal, and natural gas costs rise. To make logging […]
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Forest Products Journal | 1981 |
| Hardwood Symposium Proceedings | 1987 | |
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Press Conditions Affect Drying Rate and Shrinkage of Hardwood Boards
An electrically heated hydraulic press, equipped with a fine pressure control, was used to evaluate the effect of press conditions on drying characteristics of yellow-poplar and American beech sapwood boards. […]
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Forest Products Journal | 1980 |
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Press Drying Nine Species of Wood
Press drying was used on eight hardwoods and one softwood to explore the potential of this drying method in utilizing low-grade logs for products such as paneling and pallets. The […]
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Forest Products Journal | 1968 |
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Press Drying of Beechwood
The Danish firm of A/s Junckers Savvaerk produces parquet flooring panels by jointing short strips of medium quality beech. Despite the fact that among the common European hardwoods beech has […]
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Forest Products Journal | 1967 |
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Press Drying Quartersawn Hard Maple Lumber
This note describes application of a press drying process to quartersawn hard maple. The success of the process depends on the ability of the compression of the press to counteract […]
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Forest Products Journal | 1985 |
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Press-Dried Paneling Shows Promise
Researchers at. the U. S. Forest Products Laboratory, Madison, Wis., have developed a lumber paneling which can be press-dried from the green condition in approximately 1 hour. The boards attain […]
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Forest Products Journal | 1966 |
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Press-Drying Black Walnut Wood: Continuous Drying vs. Step-Drying
One-inch-thick black walnut heartwood boards were press-dried under three drying schedules: 1) continuous drying (CD), 2) cyclic step drying (CSD), and 3) variable step drying (VSD). The results showed that […]
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Forest Products Journal | 1978 |
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Press-Drying Green, Flatsliced Walnut Veneer to Reduce Buckling and End Waviness
Flatsliced walnut face veneer was dried under 10 different conditions and then compared primarily for residual buckle. The most effective method tested was press-drying flatsliced walnut veneer 0.030 inch thick […]
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Forest Products Journal | 1974 |
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Press-drying plantation loblolly pine lumber to reduce warp losses: economic sensitivity analysis
Several studies have suggested that press-drying, as an alternative to high-temperature kiln-drying, is effective in reducing warp and grade loss from warp in dimension lumber cut from plantation-grown loblolly pine […]
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Forest Products Journal | 1992 |
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Press-drying plantation loblolly pine lumber to reduce warp: follow-up studies
Results of two follow-up studies on the effectiveness of press-drying in reducing warp and grade loss from warp in plantation-grown loblolly pine lumber were compared with results of a previously […]
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Forest Products Journal | 1992 |
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Press-drying plantation-grown loblolly pine 2 by 4’s to reduce warp
This study shows that crook, bow, and twist can be significantly reduced in fast-grown plantation loblolly pine 2 by 4’s by press-drying instead of kiln-drying. If lumber is presurfaced to […]
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Forest Products Journal | 1988 |
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Pressure Steam Drying of Lumber
A faster and more efficient process that could dry lumber with acceptable degrade would have a major impact on the forest products industry. A prototype pressure steam dryer of 100 […]
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Forest Products Journal | 1983 |
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Pressurized final steam conditioning
In New Zealand, to reduce final moisture content variation and drying stress it is standard practice to final steam condition the lumber at 100?C and 100 percent relative humidity. To […]
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Forest Products Journal | 1997 |
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Prevention of open surface checks in dried lumber
Three matched lumber stacks of 4/4 flatsawn white oak (Quercus alba) were used in forced air-drying and another three in a dehumidification kiln to study the effect of either fluctuating […]
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Forest Products Journal | 1992 |
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Principles of Dehumidification Lumber Drying
Basic heat pump (dehumidifier) theory is discussed along with the basic components and operation of low-temperature and high-temperature lumber dehumidification drying systems. The heat transfer and thermodynamic characteristics in the […]
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Forest Products Journal | 1982 |