3. Elements of industrialization

3.1 Industrial furnaces

The treatment is applied to solid sawn timber (lumber, rafters, boards, etc.). Retification reactors were developed by Fours et Brûleurs Rey using a fixed-bed discontinuous convection heating principle. The enclosure is a double-shell stainless steel cell with a parallelepiped geometry similar to that of furnaces used in the metallurgy industry (figures 7 and 8 ). Two doors, sealed by jacks at each end, allow the wood load to be moved in and out by means of a carriage running on rails. The heat-transfer gas is heated by electrical resistors...

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Elements of industrialization

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Modification of usage properties, quality

Bibliography

(1) - WHITE (H.A.), ARBOR (A.) - Process for the partial pyrolysis of wood and product of the same. - Patent 2,360,604, US Patent Office (1944).
(2) - STAMM (A.J.), HORACE (K.B.), KLINE (A.A.) - Staywood : heat-stabilized wood. - Ind. Eng....

Patents

Anti-shrink treatment for wood United States Patent Office 2,296,316 Alfred J. Stamm 09, 22 (1942)

Process for manufacturing a lignocellulosic material by heat treatment and materials obtained by this process n° 8614138, ARMINES (1986)

Process for manufacturing an agglomerated material based on a lignocellulosic material and material obtained by carrying out this process. N° 87...

Website

http://www.sefwood.com/fr/

Site of the only active producer (2016) in France, located in the Vosges region.

Standards and norms

Wood – Determining shrinkage - NF B51-006 - 1985
Wood – Static bending test – Determination of the static bending strength of small flawless specimens - B 51-008 - 1987
Wood – Determination of Monnin hardness - NF B51-013 - 1985
Durability of wood and wood-based materials – Classes of use: definitions, application to solid wood and wood-based materials - NF EN 335 - 2013
Durability of...