Forschungs- & Entwicklungsinformationsdienst der Gemeinschaft - CORDIS

FP5

HITHEX Berichtzusammenfassung

Project ID: G5RD-CT-2000-00218
Gefördert unter: FP5-GROWTH
Land: United Kingdom

Needling PANOX end caps on PANOX tubes

PANOX end-caps and PANOX tubes were developed and joined together. Initial attempts to needle separately produced parts resulted in a weak joint. After several modifications, a method was develooped where the layers that build up the end caps were directly needled onto the tubes.

Eight to ten cross shaped pieces were cut out of a PANOX felt and laid up on an antistatic foam mandrel (covered with a latex cap) to build up the end-cap. A poly-glycol-ester was used to keep the felt layers closely together. Additionally, a latex cap was pulled over the structure to hold the pieces together. Subsequently the felt pieces were needled directly onto the PANOX tube with a self developed device that pushed a single needle 120 times per minute into the pre-form and moved the needle along the whole end-cap. When the needle had reached the end of the sample, the sample was turned by a motor a little bit. This process was repeated until the whole end-cap was needled.

One advantage of this new method is that the joint between end-cap and tube is much stronger (compared to making end-cap and tube separately and joining both pieces thereafter). A second advantage is that the production time can be significantly reduced. A possible application is the production of PANOX tubes with end-caps.

Reported by

Newmet Composites Ltd. (a division of New Metals and Chemicals Ltd.)
Rue de St. Lawrence Waltham Abbey
EN9 1PF Waltham Abbey
United Kingdom
See on map
Folgen Sie uns auf: RSS Facebook Twitter YouTube Verwaltet vom Amt für Veröffentlichungen der EU Nach oben