| 摘要 |
<p>Method of spreading flowable material over a surface by means of a spreader device comprising at least two spreader discs (4,5) rotatable in two directions. The first direction of rotation is selected to be towards each other on the non-shielded side of the spreading apparatus (wide spreading). The other opposite direction of rotation is away from each other (narrow spreading). The first direction is used for spreading in the middle of the field. The other direction is used for spreading along the boundary (3). The spreader vanes on the spreader discs have different spreading characteristics when used in the two directions. The effective spreading distance is smaller for the spreader vane at the spreader disc (5) adjacent to the boundary (3), when driven away from the other disc (4) (narrow spreading). Without changing spreader discs or spreader vanes it is in this way possible to obtain an even and constant distribution of the material to be spread over the field from boundary to boundary. <IMAGE></p> |
