Effect of manufacturing variables on stability and strength of wet-formed hardboards / by P.E. Steinmetz and D.J. Fahey.

Format:

Book

Government document

Author/Creator:

Steinmetz, P. E., author.

Fahey, D. J., author.

Contributor:

Forest Products Laboratory (U.S.), issuing body.

Series:

U.S.D.A. Forest Service research paper FPL ; 142.

U.S.D.A. Forest Service research paper ; FPL 142

Language:

English

Subjects (All):

Hardboard--Mechanical properties--Testing.

Hardboard.

Strength of materials.

Manufacturing processes.

strength of materials.

manufacturing.

Physical Description:

1 online resource (8 pages) : one illustration.

Other Title:

FPL 142

Place of Publication:

Madison, Wisconsin : U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 1971.

Summary:

Eight variables in the manufacture of high-density wet-formed hardboard from Douglas-fir and aspen were analyzed to determine whether any one or certain combinations increased the strength and the dimensional stability of the boards. The variables were wood species, pulp freeness, type of refiner, forming-water temperature, resin type, resin amount, pressing temperature, and heat treatment of the board. Wood species proved statistically the most important factor in increasing dimensional stability; the stability of the Douglas-fir boards was greater than that of the aspen. Pressing temperature and type of refiner used for processing the Asplund fiber also influenced the dimensional stability. Type of resin had the greatest effect on strength and stiffness. The fractional factorial design has served as a guide for further and more concentrated research.

Notes:

Includes bibliographical reference (page 3).

Description based on online resource, PDF version; title from cover (FS, viewed Feb. 8, 2022).

Other Format:

Print version: Steinmetz, P. E. Effect of manufacturing variables on stability and strength of wet-formed hardboards.

OCLC:

948607205