Method of treating a piece of wood at an elevated temperature

Pertti Viitaniemi; Pentti Ek; Saila Jämsä

Method of treating a piece of wood at an elevated temperature

Pertti Viitaniemi (Inventor), Pentti Ek (Inventor), Saila Jämsä (Inventor)

VTT Technical Research Centre of Finland

Research output: Patent › Patent

Abstract

The present invention relates to a method of heat treatment of a solid piece of wood, such as sawn timber. According to the method, the temperature difference between the inside temperature of the heating oven and, correspondingly, the inside temperature of the wood is maintained at a maximum of 10 degrees centigrade, after the level of moisture content of the piece of wood has reached the fibre saturation point of the wood. A small temperature difference such as this is maintained when the temperature is further increased until a level of moisture content is reached at which the strength properties of the piece of wood are at their best. By means of the solution it is possible to considerably reduce the formation of internal cracks in heat treated wood.

Patent family as of 30.8.2021
CA2598499 AA 20070821 CA20062598499 20060222
EP1851019 A1 20071107 EP20060708920 20060222
FI118139 B 20070713 FI20050000208 20050222
FI20050208 A 20061009 FI20050000208 20050222
FI20050208 A0 20050222 FI20050000208 20050222
JP2008531332 T2 20080814 JP20070556622T 20060222
JP4854679 B2 20120118 JP20070556622T 20060222
NO20074427 A 20070830 NO20070004427 20070830
NO20074427 L 20070830 NO20070004427 20070830
US2008256824 AA 20081023 US20060884773 20060222
WO06089998 A1 20060831 WO2006FI00061 2006022

Link to current patent family on right

Original language	English
Patent number	FI20050208
IPC	F26B 25/22
Priority date	22/02/05
Publication status	Published - 9 Oct 2006
MoE publication type	H1 Granted patent

Cite this

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title = "Method of treating a piece of wood at an elevated temperature",

abstract = "The present invention relates to a method of heat treatment of a solid piece of wood, such as sawn timber. According to the method, the temperature difference between the inside temperature of the heating oven and, correspondingly, the inside temperature of the wood is maintained at a maximum of 10 degrees centigrade, after the level of moisture content of the piece of wood has reached the fibre saturation point of the wood. A small temperature difference such as this is maintained when the temperature is further increased until a level of moisture content is reached at which the strength properties of the piece of wood are at their best. By means of the solution it is possible to considerably reduce the formation of internal cracks in heat treated wood.Patent family as of 30.8.2021 CA2598499 AA 20070821 CA20062598499 20060222 EP1851019 A1 20071107 EP20060708920 20060222 FI118139 B 20070713 FI20050000208 20050222 FI20050208 A 20061009 FI20050000208 20050222 FI20050208 A0 20050222 FI20050000208 20050222 JP2008531332 T2 20080814 JP20070556622T 20060222 JP4854679 B2 20120118 JP20070556622T 20060222 NO20074427 A 20070830 NO20070004427 20070830 NO20074427 L 20070830 NO20070004427 20070830 US2008256824 AA 20081023 US20060884773 20060222 WO06089998 A1 20060831 WO2006FI00061 2006022Link to current patent family on right ",

author = "Pertti Viitaniemi and Pentti Ek and Saila J{\"a}ms{\"a}",

note = "{"}Menetelm{\"a} massiivipuuta k{\"a}sitt{\"a}v{\"a}n puukappaleen k{\"a}sittelemiseksi{"}; FI20050208; F26B 25/22",

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type = "Patent",

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T1 - Method of treating a piece of wood at an elevated temperature

AU - Viitaniemi, Pertti

AU - Ek, Pentti

AU - Jämsä, Saila

N1 - "Menetelmä massiivipuuta käsittävän puukappaleen käsittelemiseksi"

PY - 2006/10/9

Y1 - 2006/10/9

N2 - The present invention relates to a method of heat treatment of a solid piece of wood, such as sawn timber. According to the method, the temperature difference between the inside temperature of the heating oven and, correspondingly, the inside temperature of the wood is maintained at a maximum of 10 degrees centigrade, after the level of moisture content of the piece of wood has reached the fibre saturation point of the wood. A small temperature difference such as this is maintained when the temperature is further increased until a level of moisture content is reached at which the strength properties of the piece of wood are at their best. By means of the solution it is possible to considerably reduce the formation of internal cracks in heat treated wood.Patent family as of 30.8.2021 CA2598499 AA 20070821 CA20062598499 20060222 EP1851019 A1 20071107 EP20060708920 20060222 FI118139 B 20070713 FI20050000208 20050222 FI20050208 A 20061009 FI20050000208 20050222 FI20050208 A0 20050222 FI20050000208 20050222 JP2008531332 T2 20080814 JP20070556622T 20060222 JP4854679 B2 20120118 JP20070556622T 20060222 NO20074427 A 20070830 NO20070004427 20070830 NO20074427 L 20070830 NO20070004427 20070830 US2008256824 AA 20081023 US20060884773 20060222 WO06089998 A1 20060831 WO2006FI00061 2006022Link to current patent family on right

AB - The present invention relates to a method of heat treatment of a solid piece of wood, such as sawn timber. According to the method, the temperature difference between the inside temperature of the heating oven and, correspondingly, the inside temperature of the wood is maintained at a maximum of 10 degrees centigrade, after the level of moisture content of the piece of wood has reached the fibre saturation point of the wood. A small temperature difference such as this is maintained when the temperature is further increased until a level of moisture content is reached at which the strength properties of the piece of wood are at their best. By means of the solution it is possible to considerably reduce the formation of internal cracks in heat treated wood.Patent family as of 30.8.2021 CA2598499 AA 20070821 CA20062598499 20060222 EP1851019 A1 20071107 EP20060708920 20060222 FI118139 B 20070713 FI20050000208 20050222 FI20050208 A 20061009 FI20050000208 20050222 FI20050208 A0 20050222 FI20050000208 20050222 JP2008531332 T2 20080814 JP20070556622T 20060222 JP4854679 B2 20120118 JP20070556622T 20060222 NO20074427 A 20070830 NO20070004427 20070830 NO20074427 L 20070830 NO20070004427 20070830 US2008256824 AA 20081023 US20060884773 20060222 WO06089998 A1 20060831 WO2006FI00061 2006022Link to current patent family on right

UR - https://worldwide.espacenet.com/patent/search/family/034224238/publication/US2008256824A1?q=US2008256824

M3 - Patent

M1 - FI20050208

ER -

Method of treating a piece of wood at an elevated temperature

Abstract

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