Warp reduction in kiln-drying hardwood dimension
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Warp reduction in kiln-drying hardwood dimension by William Turner Simpson

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Published by Forest Products Laboratory, Forest Service, U.S. Dept. of Agriculture in [Madison, WI .
Written in English

Subjects:

  • Lumber -- Drying.,
  • Hardwoods -- United States.

Book details:

Edition Notes

StatementWilliam Simpson.
ContributionsForest Products Laboratory (U.S.)
The Physical Object
Paginationp. 29-32 :
Number of Pages32
ID Numbers
Open LibraryOL15310841M

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What methods are you using to reduce the warp in the top few tiers of lumber in a dry kiln? Are you using weights or restraints? Forum Responses In general, the slower you dry, the more warp you get. By drying quickly, you develop a strong stiff outside shell which resists warp caused by . three methods: kiln drying increased from $5 to $19, and utilities increased from $7 to $20 per usable Mfbm if whole boards were dried. The net result was that processing costs were lower if parts were cut before drying. Ward (6) investigated kiln-drying beech dimension stock. He found significant losses caused by warp, with twist and bow being. Dec 01,  · Results of the kiln schedule modifications indicated that the drying time for No. 1 and No. 2 Common black cherry lumber may be reduced from approximately 20 to 43 percent to between 30 percent and 15 percent MC, while still providing usable lumber for hardwood dimension products. operators and others interested in kiln-drying wood, kiln schedules that are completely assembled and written out for ready reference and easy use. In the majority of cases, the drying schedules are from the world literature, with emphasis on U.S., Canadian, and British publications. They are brought together in.

industry practice for drying eastern hardwood lumber, in-cluding dimension items. Accent is on comparing methods for energy-saving management decisions, but practical guid-ance is also given to wood drying personnel. Air drying, accelerated air drying, and kiln drying are covered. KEYWORDS: Hardwoods, drying, air drying, kiln drying. Kiln Drying of Hardwood Lumber; Kiln Drying of Hardwood Lumber. This introductory short course is designed to enable participants to dry hardwood lumber to maximize product quality and value. #WSP-G Be the first to leave a review. Workshops. Skill Level: Beginner, Intermediate. Kiln-drying hardwood lumber [Reprint] Volume: no () by Dunlap, Frederick, ,United States. Forest Service and a great selection of related books, art . At present, no single book adequately covers a basic understanding of wood book satisfies the need for such a work. It describes drying in practice. This the fundamental basis of kiln-drying technology, to enable forest companies to imFrove their drying operations as high-quality timbers become scarcer and of yesteryear can no longer be redleaf-photography.com by:

drying), conventional kiln drying, and high temperature drying. These methods each have their own characteristics, which in turn affect pe rformance and costs for difference species and thicknesses. These characteristics are briefl y summarized below for all but high temperature. Wood drying (also seasoning lumber or wood seasoning) reduces the moisture content of wood before its use. When the drying is done in a kiln, the product is known as kiln-dried timber or lumber, whereas air drying is the more traditional method.. There are two main reasons for drying wood: Woodworking When wood is used as a construction material, whether as a structural support in a building. Common Lumber Terms Book Matched – Adjacent veneer sheets are opened like a book, matching the back of one sheet with the face of the next. Opposite slant of grain creates a light and dark effect. Net Measure – The actual measurement of hardwood lumber after kiln drying with no addition of footage for kiln-drying shrinkage. O. Australian Hardwood Drying Best Practice Manual Introduction Across Australia, hardwood producers process and dry a wide variety of native hardwood species into high quality visual and commodity structural products. Like the species they process, these producers vary considerably in their skill, capacity and potential.