EP 1198329 A1 20020424 - PROCESS FOR PRODUCING COMPRESSED WOOD PIECES
Title (en)
PROCESS FOR PRODUCING COMPRESSED WOOD PIECES
Title (de)
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON GEPRESSTEM HOLZ
Title (fr)
PROCEDE DE PRODUCTION DE PIECES EN BOIS COMPRIMEES
Publication
Application
Priority
- FI 0000600 W 20000629
- FI 991483 A 19990629
Abstract (en)
[origin: WO0100377A1] The invention relates to a method of manufacturing compressed wooden pieces. According to the method, the wooden piece is compressed into a desired shape and is conducted to heat treatment at an increased temperature, in order to set the change in shape caused by compressing. According to the invention, the wooden piece is compressed at an increased temperature, the wooden piece being kept in compression until its moisture content has decreased to less than 15%, and after compressing the wooden piece is heated at normal atmospheric pressure in the presence of steam at a temperature of more than 180 DEG C, until a weight loss of at least about 3% has taken place in the product. By means of the invention, the dimensional stability of compressed wood can be improved. Compressed wooden pieces manufactured according to the invention swell very little when soaked in water and, after drying, the wooden pieces return to their original thickness, whereas traditionally manufactured compressed wooden pieces suffer from permanent thickness swelling.
IPC 1-7
IPC 8 full level
B27M 1/02 (2006.01)
CPC (source: EP)
B27M 1/02 (2013.01)
Citation (search report)
See references of WO 0100377A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0100377 A1 20010104; AU 5831300 A 20010131; EP 1198329 A1 20020424; FI 110241 B 20021231; FI 991483 A0 19990629; FI 991483 A 20001230
DOCDB simple family (application)
FI 0000600 W 20000629; AU 5831300 A 20000629; EP 00944077 A 20000629; FI 991483 A 19990629