Thermo treatment process for wood
Thermo treatment process for wood comprising the following steps: a. Placing the wood batch to be treated in a treatment chamber; b. Exchanging the atmosphere inside the treatment chamber by evacuating the air, replacing the evacuated air by an inert gas atmosphere in gas form, at 8 to 12 bar pressure; c. Heating the inert gas atmosphere up to 165 to 175° C., d. increasing the pressure in the inert gas atmosphere to 14-16 bar; e. maintaining the temperature in step c. and the pressure in step d. for from 90 to 150 minutes; f. cooling the inert gas atmosphere to a temperature of 20 to 35° C. g. retrieving the treated wood batch.
1. Thermo treatment process for wood comprising following steps:
a. Placing a batch of wood to be treated in a treatment chamber;
b. Exchanging atmosphere inside the treatment chamber by evacuating air and steam, replacing evacuated air and steam by an inert gas atmosphere in gas form, at a pressure of from 8 to 12 bar;
c. Heating the inert gas atmosphere up to a temperature of 165 to 175° C.,
d. increasing the pressure in the inert gas atmosphere to 14-16 bar;
e. maintaining the temperature in step c. and the pressure in step d. for a time period of from 90 to 150 minutes;
f. cooling the inert gas atmosphere to a temperature of 20 to 35° C.
g. retrieving the batch of wood treated in the treatment chamber.
2. Thermo treatment process for wood according to claim 1 , wherein the inert gas is Nitrogen.
3. Thermo treatment process for wood according to claim 1 wherein the process in steps c. and d. takes between 90 to 110 minutes.
4. Thermo treatment process for wood according to claim 1 wherein in step d. or e. a mineral or organic oil may be applied to the batch of wood.
5. Thermo treatment process for wood according to claim 1 wherein an impregnating agent is applied to the batch of wood in step d. or e.