| 摘要 |
There is described a needle board (1) for a device for needling a web, comprising a board body (2) of a light metal alloy, in particular a magnesium-aluminum alloy, and a plastic coating (3) cast onto the board body (2) on the side of the board facing the needle tips. To create advantageous constructional conditions it is proposed that the board body (2) preferably consisting of a cross-cut extruded section has undercut grooves (7) at its edges on the side of the board covered by the plastic coating (3), where the plastic coating (3) cast thereon positively fills the undercut grooves (7). |
