Process to manufacture fibre-reinforced plastics with constant cross-sections
Pultrusion is a continuous process for manufacture of fibre-reinforced plastics with constant cross-section. The term is a portmanteau word, combining "pull" and "extrusion". As opposed to extrusion, which pushes the material, pultrusion pulls the material.
A very early pultrusions type patent was filed by J.H. Watson in 1944. This was followed by M.J. Meek's filing of 1950. The first commercial pultrusions were provided by Glastic Company of Cleveland, Ohio under the patent filed in 1952 by Rodger B. White. The patent issued to W. B. Goldsworthy in 1959 helped initiate the promotion and knowledge spread within the industry. W. Brandt Goldsworthy is widely regarded as the inventor of pultrusion.[1]
Parallel to the work of Goldsworthy, who concentrated his work on unsaturated polyester resins, Ernst Kühne in Germany developed a quite similar process in 1954 based on epoxy resin.
Invention, development and the issuance of patents continue in the pultrusion field through today. A later innovation in this field has been developed and patented by Thomas GmbH + Co. Technik + Innovation KG in Germany 2008 and is described below.
Pultrusion is a continuous process for manufacture of fibre-reinforced plastics with constant cross-section. The term is a portmanteau word, combining...
laboratory conditions. The process of manufacturing fiberglass is called pultrusion. The manufacturing process for glass fibers suitable for reinforcement...
natural gas (CNG) cylinders or pipes. The thickest fiber is used for pultrusion, geogrid, unidirectional fabric, multiaxial fabric production and in form...
largest segment into which UPRs are used and can be processed via SMC, BMC, pultrusion, cured-in-place pipe (known as relining in Europe), filament winding,...
continuous casting, filament winding, press moulding, transfer moulding, pultrusion moulding, and slip forming. There are also forming capabilities including...
will harden at the right temperature. An automated apparatus, called a pultrusion machine, extrudes the rubber into long circular logs that are 3 inches...
processing techniques: the direct uses are for prepregging, filament winding, pultrusion, weaving, braiding, etc. Carbon fiber yarn is rated by the linear density...
The reinforcement of 3D printed concrete is a mechanism where the ductility and tensile strength of printed concrete are improved using various reinforcing...
been combined with other fiber application methods such as hand layup, pultrusion, and braiding. Compaction is through fiber tension and resin content is...
Tier-1 supplier) The main production process used by the company are pultrusion and its pull-winding variant. The production site is located in Gaillan...
The product is light due to its carbon-fiber tape core manufactured in pultrusion by French company Epsilon Composite and a high-friction coating added...
the extrudate is pulled through a very long die, in a process called "pultrusion". The configuration of the interior screws are a driving force dependent...
high corrosion-resistance capabilities. Pultruded FRP is produced using pultrusion technology, and has become the most common structural material for small...
although it differs in that it is usually a continuous process. While pultrusion can offer many similar profiles in continuous lengths, usually with added...
comes from analogy to the textile spinning wheels. Silk production is a pultrusion, similar to extrusion, with the subtlety that the force is induced by...
production, SENER delivers turn-key equipment such as hot forming systems and pultrusion machines for wing spar production. In the Defense field, SENER's main...
in jibs of beach-cat catamarans. Most modern battens are fiberglass pultrusions with a thin, rectangular cross section. An alternative shape is a hollow...
also found in jibs of beach-cat catamarans. Most battens are fiberglass pultrusions with a thin, rectangular cross section. Junk rigs feature full-length...
steel and are more resistant to impact. Many resin types may be used in pultrusion including polyester, polyurethane, vinylester epoxy, isophthalic polyester...
stability. During development it was found that carbon rods formed by the "pultrusion" process could be used to provide a stronger spar. This technique has...
different methods including prepreg, resin, infusion, filament winding and pultrusion. Advanced polymer composites are used in many airplane structures and...
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