| 摘要 |
PCT No. PCT/SE83/00181 Sec. 371 Date Jan. 4, 1984 Sec. 102(e) Date Jan. 4, 1984 PCT Filed May 5, 1983 PCT Pub. No. WO83/03997 PCT Pub. Date Nov. 24, 1983.A method of diffusion impregnation of wooden structures, which include long wooden objects, with a wood preservative, depots with the wood preservative being placed, in a way known per se, within the wood. The characteristic feature of the method is that in sections of the wooden object in which the moisture ratio of the wood is less than substantially 25 % depots with wood preservative dissolved in a hygroscopic liquid are placed and that in sections of the wooden object in which the moisture ratio of the wood is greater than substantially 25 % depots with wood preservative in solid phase are placed. The depots are placed at intermittent distances from each other along the wooden structure so that each long object is impregnated along the whole of its length and right through it. |
