| 摘要 |
<p>In a waste water treatment or shaft construction element (M) consisting of a plastics container body (18) with at least one inlet and/or outlet piece (S1, S2) formed on the container wall(s) (20), the inlet/outlet part is formed as a single composite tubular piece (S) with at least two spaced, rigid sections (R1, R2) injection molded from plastics and a flexible intermediate piece (Z) injection molded from thermoplastic elastomer, the intermediate piece (Z) being tightly bonded to the ends of the rigid sections. An independent claim is included for the production of the element (M) from plastics in an injection mold, where (after injection molding of still hot axially spaced tube sections (R1, R2)) the intermediate tubular piece (Z) is formed in situ in the space by injection molding of thermoplastic elastomer and bonded to the ends of the tube sections (R1, R2) by two-component technology.</p> |
