| 摘要 |
<p>Extruded, by ejection casted or blown pipe from synthetic material for the production of the pipeline, with body (1) pipe assembled from at least three layers pointed out, so that the inner layer (2) and center layer (4) consist of one polymer material, that in the amorphous area partially crystallized polymer material of the inner layer (2) which is in contact with the cross section media and/or center layer (4) built in additives against aggressive media, especially the oxidized and reduced media, and in the amorphous area of polymer materials of the center layer (4) are brought in chargers and/or additives as a barrier material for reducing migrations of additives from the inner layer (2) into the external layer (3) of the pipe.</p> |
