| 摘要 |
PCT No. PCT/SE90/00564 Sec. 371 Date Jan. 17, 1992 Sec. 102(e) Date Jan. 17, 1992 PCT Filed Sep. 4, 1990 PCT Pub. No. WO91/03595 PCT Pub. Date Mar. 21, 1991.For the purpose of faciliating the impregnation of wood chips, the chips are compressed between two compression devices (9) which act on the mutually opposing flat sides of the chips (2). As the chips are compressed, the chips (2) are undulated or curved in at least one direction to produce a wave shape such that when the chips are seen in section at right angles to the waves, the top and the bottom sides (15, 16) of the wave crests will both be located on one side of a central plane (19) which passes through respective chips between the bottom sides (16) of the wave crests and the top sides (17) of the wave troughs, whereas the top and bottom sides (17, 18) of the wave troughs will both be located on the other side of the central plane (19). Apparatus for use in treating wood chips in this way includes compression devices (9) which present surfaces which are intended to act on the flat sides of the chip pieces (3) in a manner to form an undulating wave-shaped pattern which extends in at least one direction such that when in a chip-compression position the wave crests (13) on each compression device (9) will meash with the wave troughs(14) defined by mutually adjacent wave crests (13) on the opposite compression device (9). |
