Continuous filament winding machine

Continuous filament winding machine
CFW Machine

A continuous filament winding machine (CFW Machine / CW Machine) is a machine for laying filament windings continuously over a cylindrical steel band. The steel band is carried on a forward moving mandrel which is able to collapse and return to the beginning of the travel. The steel band is released after the mandrel collapses and is continuously fed back to the start of the travel where it is again wound on to the mandrel.

This machine is mainly used to manufacture fibre-reinforced plastic (FRP) pipes and couplings, especially glass-reinforced plastic (GRP) pipes. They are used for the manufacture of large diameter pipes and there is a minimum diameter below which the technique becomes unrealistic. Machines are available for diameters from 0.25 to 4.0 m (9.8 to 160 in).

A raw material storage and mixing areas for resins, catalysts, etc. is needed to feed the machine. This will usually involve heating of the chemical mix.

The process of Continuous filament winding is also known as the Drostholm Process. In addition to the continuous advancing band, many alternative methods of filament winding also exist.

The raw material is fed on a continuous steel band. The steel band moves forward a distance equal to its width for each turn. The mandrel does not move forward and there is no collapsable mandrel in the process.

History

The principle of filament winding is derived from the wrapping of sheets or straps and it can be processed continuously by using computer controlled winding set up. Then the idea of confining concrete by impregnating into the continuous fibre strands was first mentioned by Fardis Khalili in 1981. The first winding machine for column retrofitting was developed by Japan in the mid 1980s.

Manufacturers

Examples of continuous filament winding machine producers:

  • VEM S.p.A. [1]

References

  • Michael G. Bader, Leif A. Carlsson, John W. Gillespie, Delaware composites design encyclopedia: Processing and fabrication technology,pp. 197–198, CRC Press, 1990 ISBN 0877627010.
  • Leonard Hollaway, Handbook of polymer composites for engineers, p. 98, Woodhead Publishing, 1994 ISBN 1855731290.
  • J. G. Teng, FRP-strengthened RC structures, p. 149, John Wiley and Sons, 2002 ISBN 0471487066.
  1. ^ VEM

Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • spinning machine — noun a textile machine for spinning yarn and thread • Hypernyms: ↑textile machine • Hyponyms: ↑spinning frame, ↑spinning jenny, ↑spinning wheel, ↑throstle * * * noun 1 …   Useful english dictionary

  • textile — /teks tuyl, til/, n. 1. any cloth or goods produced by weaving, knitting, or felting. 2. a material, as a fiber or yarn, used in or suitable for weaving: Glass can be used as a textile. adj. 3. woven or capable of being woven: textile fabrics. 4 …   Universalium

  • materials science — the study of the characteristics and uses of various materials, as glass, plastics, and metals. [1960 65] * * * Study of the properties of solid materials and how those properties are determined by the material s composition and structure, both… …   Universalium

  • Composite material — A cloth of woven carbon fiber filaments, a common element in composite materials Composite materials, often shortened to composites or called composition materials, are engineered or naturally occurring materials made from two or more constituent …   Wikipedia

  • Heatsetting — Heat setting is a term used in the textile industry to describe a thermal process taking place mostly in either a steam atmosphere or a dry heat environment. The effect of the process gives fibers, yarns or fabric dimensional stability and, very… …   Wikipedia

  • plastic — plastically, plasticly, adv. /plas tik/, n. 1. Often, plastics. any of a group of synthetic or natural organic materials that may be shaped when soft and then hardened, including many types of resins, resinoids, polymers, cellulose derivatives,… …   Universalium

  • Crochet — For a note duration, see Quarter note. Detail of a crocheted doily, Sweden Crochet (English pronunciation: /k …   Wikipedia

  • Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …   Wikipedia

  • Business and Industry Review — ▪ 1999 Introduction Overview        Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …   Universalium

  • electromagnetism — /i lek troh mag ni tiz euhm/, n. 1. the phenomena associated with electric and magnetic fields and their interactions with each other and with electric charges and currents. 2. Also, electromagnetics. the science that deals with these phenomena.… …   Universalium

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”