Spun roving

Continuous strand Yarn Continuous roving Spun roving Twisted single ends Untwisted multistrands Looped single ends 176,400 yds./lb. to 200 yds./lb 0.0026" diam. to 0.055" diam. 1-2-Vz Filament winding Production of other reinforcements Pultrusion products Preforms... 

Spun roving n. A glass-fiber strand, repeatedly doubled back on itself to form a roving, sometimes reinforced by one or more straight strands. 

Several forms of roving are available. Spun roving is among the least expensive, consisting of a single continuous strand that is looped and wound into rovinglike form. Roving products for use in gun spray-up processes can be easily cut. 

Anguss, Angusskegel sprue bush Angussbuchse spun roving Spinnroving spur Spom sputter (EM) sputtem, besputtem (Vakuumzerstaubung) sputtering (EM)... 

Tlie spun filaments are assembled in strands, yarns, rovings that can be woven or knitted. A variety of forms are available ... 

A single homogeneous strand of material having a length of at least 5 mm, which can be spun into a yarn or roving. Also a thread like structure that has L >100 diameter with d = 100-130 pm. 

Nonwovens The textile and paper industries are based on the two oldest (wet and dry) processes. Manufacturers of nonwovens for plastics draw on both. With the wet, there are basically two types namely the Fourdrinier and cylinder machine types that have been modified. In addition, two basic types exist for the process formation of the web and application of the bonding agent or system where mechanical carding of fibers is used. The particular equipment and method of operation to be used, with their many modifications, is influenced by desired requirements such as mechanical properties, softness, surface condition, tenacity, etc. There are certain t) es of so-called nonwoven fabric that are directly formed from short or chopped fiber as well as continuous filaments. They are produced by loosely compressing together fibers, yarns, rovings, etc. with or without a scrim cloth carrier assembled by mechanical, chemical, thermal, or solvent methods. Products of this type include melted and spun-bonded fabrics. 

Roving, spun A heavy low-cost glass, aramid, etc. fiber strand consisting of filaments that are continuous but doubled back on themselves. 

Woven roving fabrics Various styles of weave Continuous roving Spun strand roving Staple yard 15 oz to 27 oz./sq. yd. 0.027 to 0.048" thick 2-3-V2 Open mold Laminates Compression molding Bag molding... 

Marl A yarn made from two rovings of contrasting colors drafted together, then spun. Provides a mottled effect. 

Because the fibres are usually very thin, they are bundled in so-called rovings, comprising several thousand single fibres. The diameter of these rovings is thus in the range of millimetres. Alternatively, the fibres can be spun to form yarns. 

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