METHOD OF MANUFACTURING A CORRUGATED WOOD ELEMENT, A CORRUGATED WOOD ELEMENT AND ITS USES

摘要

Method of making a wavy wood element (B) from a wood element (A), wherein the method comprises at least steps (H1) to (H4): (H1) providing a wood element (A), which comprises fibers and lignin on or between said fibers; (H2) heating the wood element (A) to a temperature which is sufficient to soften or melt at least a part of the lignin; (H3) deforming the wood element heated in step (H2) such that a wavy wood element (B) is formed; (H4) cooling the wood element deformed in step (H3); characterized in that the deforming in step (H3) is performed such that the ratio of the wave height to the thickness of the wavy wood element (B) equals or is more than 2:1; wherein the term "thickness" signifies the shortest distance between an upper side and the respective lower side of the wavy wood element (B), and the term "wave height" signifies the shortest distance between two imaginary planes which run in parallel to one another between which the wavy wood element (B) may be arranged such that the waves are positioned between said planes; and wherein the wood element (A) consists of unglued wood or unglued wood fibers.