| 摘要 |
The invention relates to a pipe section for insulating purposes (I1) and a method for manufacturing a pipe section for insulating purposes (I1), said pipe section (I1) having its thermal insulation layer consisting of mineral wool layers (21, 3') of substantially different densities. The thermal insulation layer is created by forming a continuous mineral wool mat (9) with at least two sections of different densities, such that at least one section of said continuous mineral wool mat (9) is compressed to a given density, and that the continuous mineral wool mat (9), which has said sections of different densities formed therein, is wound into a tubular form, said sections of different densities becoming positioned so as to create said mineral wool layers (2', 3') of substantially different densities for the thermal insulation layer. |
