| 摘要 |
The extrusion, designed to be assembled with others of the same type and, when necessary, dismantled, has inner partitions forming a number of cells (2, 3, 4) which extend along its whole length, and is made from a composition material based on a mixture of polyolefin(s) and sawdust. Its opposite edges are tongued and grooved for connecting to other similar elements, each tongue having a dovetail cross-section and each groove a matching shape. Preferably the polyolefin used for the extrusion is polypropylene, and its proportion is 90-10%, compared with 10-90% for the sawdust. The ends of the extruded elements can be closed by covers which are joined to them by a force fit, and the inner cells can have sliding reinforcing members, be filled with an expanded plastic foam, especially of polyurethane, polystyrene or polyethylene, or they can be employed as channels for circulating a heating/cooling agent. Also claimed is a partition comprising the above extruded articles. |
