Faserverstärktes Polymerrohr

Details

Veröffentlichungs-Nr.

EP3590690

Aktenzeichen

EP18181594

Anmeldetag

4. Juli 2018

Veröffentlichung

23. Dezember 2020

Erteilung

23. Dezember 2020

Rechtsraum

EP

IPC

B29C70/06B29C70/32B29D23/00B29C65/00F16L47/00B29D1/00B29C53/58// B29L23/00F03D1/06

Abstract

<div notation="docdba" type="abstract" xml:lang="en"><p>The present disclosure relates to a fibre reinforced polymer (FRP) tube (1), the tube comprising a plurality of concentric layers of an FRP material (6) forming a shell (2) of the tube. At least one blind threaded longitudinal bolt hole (27) is provided from a transverse end surface (4) of the shell (2). The bolt hole (27) extends in at least three of the plurality of layers, a middle layer (23) encompassing a plane passing through a centre of the bolt hole, an inner layer (22) encompassing a plane of an innermost extent (28) of the bolt hole, and an outer layer (24) encompassing a plane of an outermost extent (29) of the bolt hole. The fibre filament of each of the inner and outer layers has been wound at a first angle to the longitudinal axis corresponding to 90° minus a lead angle of the threading of the bolt hole ±5°. The fibre filament of the middle layer has been wound at a second angle to the longitudinal axis corresponding to 90° minus half of a thread angle of the threading of the bolt hole ±5°.</p></div>

Anmelder

Firmen

ABB Power Grids Switzerland AG
ABB Schweiz AG

Land

🇨🇭 Schweiz

Fachgebiete