| 摘要 |
The invention relates to a covering panel (1, 25) with a single piece of extruded support plate (2), made from synthetic plastic material, preferably at least in part of recycled synthetic plastic material, with a flat and even top surface (3), a bottom face (18) and with pairs of opposite sides (4,5; 34, 35) that are provided with complementary profile edges in the form of a male profile edge (6; 26; 36) on the one side and a female profile edge (7; 27; 37) on the other, where said male profiled edge (6, 26, 36) can be connected, in a clamping or anchoring manner, to a female edge (7, 27) of an equal adjacent covering panel (8, 28), preferably according to a direction D that runs perpendicular to said top surface. In their bottom face (18) there are a number of strip-shaped recesses (19) that run according to the direction of extrusion and that alternate in that place with a number of support strips (20), of which at least a part (46) has a width S along that bottom face that complies with 1,5T < S < 10T, and whereby 0,4T < C < 0,7T applies, in which C is the average depth of these recesses (19). The invention relates also to a process for the extrusion of a synthetic plastic plate. |
