Official Journal of the Japan Wood Research Society
Table 1 Operational parameters during THM process
From: Study on the changes in surface characteristics of Populus tomentosa due to thermo-hydro-process
Process steps | Parameters | Treatment samples | |||
|---|---|---|---|---|---|
CR50 | CR60 | CR70 | CR75 | ||
Pre-heating | Temperature (°C) | 160 | 160 | 160 | 160 |
Pressure (MPa) | 0 | 0 | 0 | 0 | |
Duration (min) | 10 | 10 | 10 | 10 | |
Compressing | Temperature (°C) | 160 | 160 | 160 | 160 |
Pressure (MPa) | 4 | 5.5 | 8 | 12 | |
Duration (min) | 8 | 10 | 12 | 14 | |
Annealing | Temperature (°C) | 160 | 160 | 160 | 160 |
Pressure (MPa) | 4 | 5.5 | 8 | 12 | |
Duration (min) | 20 | 20 | 20 | 20 | |
Cooling | Temperature (°C) | 50 | 50 | 50 | 50 |
Pressure (MPa) | 4 | 5.5 | 8 | 12 | |
Duration (min) | 15 | 15 | 15 | 15 | |