Factors Determining Lumber Recovery in Sawmilling PDF Download
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Author: Philip H. Steele
Publisher:
ISBN:
Category : Lumbering
Languages : en
Pages : 16
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Book Description
Author: Philip H. Steele
Publisher:
ISBN:
Category : Lumbering
Languages : en
Pages : 16
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Book Description
Author: Philip H. Steele
Publisher:
ISBN:
Category : Lumbering
Languages : en
Pages : 12
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Author: Susan Willits
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 40
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Book Description
This report summarizes the results of lumber recovery studies at four sawmills in western Oregon and western Washington; two dimension mills, one grade mill, and one timber mill were included. Results from individual mills are reported and discussed. The four mills were also combined to approximate "average" conversion of logs to lumber for the region. Recovery information is presented by diameter and log grade for lumber volume, lumber grade, and lumber and log value.
Author: Thomas Daniel Fahey
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 26
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Author: Kenneth A. Kilborn
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 24
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Author: Philip H. Steele
Publisher:
ISBN:
Category : Forest productivity
Languages : en
Pages : 16
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Book Description
The relationship between annual softwood sawmill production and lumber processing variables was examined using data from Sawmill Improvement Program (SIP) studies of 650 softwood mills. The variables were lumber recovery factor (LRF); headrig and resaw kerf width; total sawing variation, rough green size, and oversizing-undersizing for 4/4 and 8/4 lumber; planer allowance; and average log diameter and length. All variables except planer allowance and average log diameter were significantly influenced by annual sawmill production. The conversion efficiency of the mills in terms of most of these variables increased as sawmill size increased but decreased at annual production levels approaching or exceeding 100 million board feet. Study sawmills were grouped by geographic region and annual production class. Weighted values of LRF, sawing, and resource variables were calculated for each region by weighting by the percentage of mills of that production class in each category. Weighted and mean values are presented for each annual production class by region.
Author: Marlin E. Plank
Publisher:
ISBN:
Category : Lumber
Languages : en
Pages : 20
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Author: Softwood Sawmill Improvement Program (U.S.)
Publisher:
ISBN:
Category : Sawmills
Languages : en
Pages : 114
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Author:
Publisher:
ISBN:
Category : Strains and stresses
Languages : en
Pages : 428
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Author:
Publisher:
ISBN:
Category : Forest products
Languages : en
Pages : 110
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