Título:
|
Variation in shrinking and swelling of wood
|
Autores:
|
STAMM, ALFRED J., Autor ;
W. K. LOUGHBOROUGH, Autor
|
Tipo de documento:
|
documento electrónico
|
ISBN/ISSN/DL:
|
68644
|
Nota general:
|
En: Transactions of the American Society of Mechanical Engineers, 1942, 64, pp.379-386
|
Langues:
|
Inglés
|
Clasificación:
|
CONTRACCIÓN
HINCHAMIENTO
MADERA
MEDICIÓN DE HUMEDAD
|
Resumen:
|
The purpose of this paper is to point out that while the forces that cause wood to shrink and swell are chemical in nature, the factors which influence the degree of external dimension change are largely physical or mechanical. Orientation of the structural units, specific gravity or porosity of the wood, and the stresses set up by moisture gradients determine the change in external dimensions as the wood loses or gains moisture. Water soluble extractives, because of their bulking effect, reduce de shrinkage of wood.
|