Process for producing pipe sleeves from mineral wool
AssigneeSaint-Gobain Isover
InventorsHarald Ligtenberg, Anton Zysik, Jens Meyer, Volker Albrecht
Life of this patent
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Abstract
The invention relates to a process for producing pipe sleeves made of mineral wool for insulating pipelines or for reducing the sound level in pipeline systems, comprising the following steps: providing a nonwoven web (11) made of mineral wool which is provided with an uncured binder, winding up the nonwoven web (11) on a winding mandrel (2) of a winder, curing the binder. Here, at least one reinforcing layer (12, 13) is provided before the nonwoven web (11) runs into the winder, in such a way that during the winding the said reinforcing layer becomes a constituent part of the pipe sleeve produced as a result.
Claims18
Process for producing pipe sleeves (10;
- 20;
- 30;
- 50) made of mineral wool for insulating pipelines or for reducing the sound level in pipeline systems, comprising the following steps:
- a) providing a nonwoven web (11;
- 21;
- 31;
- 51) made of mineral wool which is provided with an uncured binder,
- b) winding up the nonwoven web (11;
- 21;
- 31;
- 51) on a winding mandrel (2) of a winder,
- c) curing the binder,
- characterized in that
- at least one reinforcing layer (12, 13;
- 22;
- 32, 33;
- 52) is provided before the nonwoven web (11;
- 21;
- 31;
- 51) runs into the winder, in such a way that during the winding the said reinforcing layer becomes a constituent part of the pipe sleeve produced as a result.
Pipe sleeve (20;
- 30) made of mineral wool for insulating pipelines, the pipe sleeve being formed of a wound nonwoven web (21;
- 31) with cured binder, characterized in that there is at least one reinforcing layer (22;
- 32, 33) on the inner side of the pipe and/or enclosed at at least part of the boundary between successive wound layers.
Pipe sleeve (50) made of mineral wool for sound-level reduction in pipeline systems, in particular of heating installations (40) or ventilation systems, characterized in that it has at least one reinforcing layer (52) which provides the inner surface of the pipe sleeve (50) that determines the clear internal diameter of the pipe sleeve.
Dependencies are inferred from the claim text.