人工林杨树木材皱缩恢复工艺参数优化

In this paper, study on the recovery processing by using different temperature of saturated steam and different time to recover the collapsed specimens. To measure the length of tangential and radial direction, and the experimental data were analyzed by SAS software. The Results effected by the temperature, showed temperature was 100 ℃. the maximum recovery rate in the tangential and radial direction ,is 1.6502% and 1.5006%. Considering the time, the maximum recovery rate of 6h is 1.6704% and 1.4108% in the tangential and radial direction , According to the interaction effection, the best optimum process is 100℃ and 6h of temperature and time; it is better in 80℃ and 6h.