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Polymers in Sport and Leisure

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References <strong>and</strong> Abstracts<br />

Item 250<br />

Plastics News(USA)<br />

9, No.31, 29th Sept.1997, p.24<br />

COMPOSITES GIVE SNOW BOARD RIDERS<br />

EDGE<br />

Renstrom R<br />

Rusty Snowboards is add<strong>in</strong>g CFRP strips to allow team<br />

riders <strong>and</strong> advanced boarders to hold high-speed turns.<br />

Several dozen attendees at the Action <strong>Sport</strong>s Retailer<br />

exhibition spent hours after the exhibition at Rusty’s<br />

San Diego factory, <strong>and</strong> 40 constructed their own<br />

‘snowslider’ with the graphite strips <strong>and</strong> a choice of<br />

board size <strong>and</strong> graphic colour. Each fibre strip is laid<br />

alternately between three pieces of wood core. The<br />

company has noted that a competitor has been<br />

experiment<strong>in</strong>g with CFRP placement, but have found<br />

that it is unsatisfactory to put it along the rails as it is<br />

difficult to bond the materials. Rusty Snowboards<br />

employs 12, occupies 5,000 sq.ft. <strong>and</strong> can produce 60<br />

boards daily. The shop produced 3,500 units <strong>in</strong> 1996,<br />

its first season, <strong>and</strong> is now produc<strong>in</strong>g 5,000-6,000<br />

boards/yr. Details are given.<br />

RUSTY SNOWBOARDS; HOBIE SNOWBOARDS;<br />

HOBIE DESIGNS INC.<br />

USA<br />

Accession no.657853<br />

Item 251<br />

Rubber Technology International<br />

1997, p.210-2<br />

TENSION AND LENGTH CONTROL FOR<br />

YARNS AND TOWS IN FIBRE-REINFORCED<br />

STRUCTURES<br />

Nick A<br />

Holtex Textilmasch<strong>in</strong>en GmbH<br />

In a number of manufactur<strong>in</strong>g processes (e.g. filament<br />

w<strong>in</strong>d<strong>in</strong>g, pultrusion, tape lay<strong>in</strong>g, lam<strong>in</strong>at<strong>in</strong>g, tyre cord<br />

weav<strong>in</strong>g, sectional warp<strong>in</strong>g), direct beam<strong>in</strong>g, warp<br />

knitt<strong>in</strong>g <strong>and</strong> multi-axial weft <strong>in</strong>sertion tows <strong>and</strong> fibres<br />

are used that are made from glass, carbon, aramid,<br />

polyamide, polyester, PP or PE. Both the processes <strong>and</strong><br />

the <strong>in</strong>dividual fibres are very different, but for all a<br />

constant thread tension dur<strong>in</strong>g manufactur<strong>in</strong>g is<br />

fundamental for high-quality products to be produced.<br />

Such products <strong>in</strong>clude fibre-re<strong>in</strong>forced plastics for<br />

aircraft, cars, sports equipment, protective cloth<strong>in</strong>g,<br />

mach<strong>in</strong>e components <strong>and</strong> prepregs. Poor quality often<br />

occurs as a result of delam<strong>in</strong>ation that leads to early<br />

product failure. Causes of delam<strong>in</strong>ation can be detected<br />

through <strong>in</strong>vestigation of the fibre, the fibre-matrix system<br />

or the process technology that is applied. Emphasis is<br />

placed on the behaviour of fibres <strong>and</strong> tows as they are<br />

tangentially wound. 2 refs.<br />

EUROPEAN COMMUNITY; EUROPEAN UNION; GERMANY;<br />

WESTERN EUROPE<br />

Accession no.657676<br />

Item 252<br />

Rubber Technology International<br />

1997, p.19-24<br />

DEVELOPING A HIGH-PERFORMANCE<br />

SNOWMOBILE VARIABLE SPEED BELT<br />

Shepher J; Westhoff W; Breed J<br />

Gates Rubber Co.<br />

Produc<strong>in</strong>g an effective design for a high-performance<br />

variable speed belt by Gates Rubber for snowmobile<br />

applications requires the careful balanc<strong>in</strong>g of a number<br />

of conflict<strong>in</strong>g properties related to functionality <strong>and</strong><br />

durability. A detailed test <strong>and</strong> evaluation programme was<br />

essential <strong>in</strong> order to achieve an optimised design. Design<br />

aspects covered <strong>in</strong>clude the Snow-V variable speed<br />

transmission; transmission functions <strong>and</strong> their<br />

<strong>in</strong>teractions; belt structure, component design <strong>and</strong><br />

geometric design; <strong>and</strong> development validation <strong>and</strong> test<strong>in</strong>g.<br />

USA<br />

Accession no.657634<br />

Item 253<br />

Advanced Materials Newsletter<br />

19, No.17, 8th Sept.1997, p.2-3<br />

INTEK INTRODUCES EXTRUDED FIBRE<br />

COMPOSITES SYSTEM<br />

Intek Plastics has <strong>in</strong>troduced VHME (Very High Modulus<br />

Extrusion) Long Fiber Extrusions based on a new<br />

proprietary thermoplastic material system <strong>and</strong> process that<br />

is claimed to be a replacement for wood, pultrusions <strong>and</strong><br />

metals. This patent-pend<strong>in</strong>g process extrudes<br />

thermoplastic composite based on Celstran long glass<br />

fiber-re<strong>in</strong>forced mould<strong>in</strong>g compound materials. The<br />

company claims that the material system is stiffer than<br />

most woods, more weatherable than pultrusions, <strong>and</strong> will<br />

not corrode like metals (ma<strong>in</strong>ly steel <strong>and</strong> alum<strong>in</strong>ium).<br />

Re<strong>in</strong>forced VHME is <strong>in</strong>itially available <strong>in</strong> square tubular<br />

shapes only. The market potential for VHME is said to<br />

be comparable to the estimated 60-70 million US dollars<br />

market for <strong>in</strong>jection mould<strong>in</strong>g of long fiber compounds,<br />

with annual growth of about 20%. A market study has<br />

determ<strong>in</strong>ed that VHME has potential use <strong>in</strong> more than<br />

130 applications <strong>in</strong>clud<strong>in</strong>g office furniture, appliances,<br />

sport<strong>in</strong>g goods, transportation, w<strong>in</strong>dows, doors,<br />

wastewater <strong>and</strong> sewage treatment, corrosive environments<br />

<strong>and</strong> commercial refrigeration. Details are given.<br />

INTEK PLASTICS INC.<br />

USA<br />

Accession no.656958<br />

Item 254<br />

Designed for life:Composites ’94. Publication number<br />

293/7. Conference proceed<strong>in</strong>gs.<br />

London, BPF, 1994, p.27-35. 627<br />

RESIN TRANSFER MOULDING OF MARINE<br />

PRODUCTS<br />

Searle T; Short D; Chudley J; Tate A; Bucknell S<br />

68 © Copyright 2001 Rapra Technology Limited

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