水曲柳是客车木结构中用量很大的木材。其板材的干燥比较困难,不仅干燥时间长,如6.7厘米厚的板材一般需要干燥40～43天,4.7厘米厚的板材一般需要干燥20～25天,而且在干燥的过程中,还经常发生比较严重的横向翘曲,约有八分之一的板材产生不同程度的横向翘曲,最大翘曲可达5～7毫米,板材端面开裂的也很多。因此,试验研究合理的干燥基准,缩短干燥周期,减少板材的翘曲,尽量避免损失,是有很大意义的。 Manchurian ash wood is a large amount of timber in the bus. The sheet is difficult to dry, not only long drying time, such as 6.7 cm thick sheet generally need to dry 40 to 43 days, 4.7 cm thick sheet generally needs to dry 20 to 25 days, but also in the drying process, often occur compared Severe lateral warp, about one-eighth of the board produces varying degrees of lateral warp, the maximum warp up to 5 ~ 7 mm, the sheet face cracking a lot. Therefore, the experimental study of a reasonable basis for drying, shorten the drying cycle, reduce sheet warpage, try to avoid losses, is of great significance.