Accession Number:

AD0736269

Title:

Effect of Manufacturing Variables on Stability and Strength of Wet-formed Hardboards.

Descriptive Note:

Forest Service research paper,

Corporate Author:

FOREST PRODUCTS LAB MADISON WIS

Personal Author(s):

Report Date:

1971-01-01

Pagination or Media Count:

10.0

Abstract:

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. Author

Subject Categories:

  • Wood, Paper and Related Forestry Products

Distribution Statement:

APPROVED FOR PUBLIC RELEASE