| 摘要 |
<p>In a method of bonding a layer of plastics material to a metallic layer (2), at least one surface of the metallic layer is treated with a treatment gas such as fluorine and thereafter passed through high activity ions. The layer of plastics material is then extruded on to the treated surface of the metallic layer, to which it is bonded during the extrusion. An apparatus for providing the above surface treatment comprises a source (405) of the treatment gas, means (411) for allowing contact of at least one surface of the metallic layer (2) with the treatment gas, means (414, 418) for generating high activity ions and means (412) for allowing contact of the metallic layer surface previously treated with the treatment gas with the high activity gas. <IMAGE></p> |
