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Glossary of Terms

Publish Time2015-08-21        Hits414

The combination of mesh count and wire diameter determines the aperture, the open area and the strength of the mesh.


Warp


The wires running lengthwise in a mesh.


Weft (or Shute)


The wires running transversely across the mesh width.


Aperture


The aperture is the size of the openings in the mesh, ie the distance between two adjacent warp or weft wires.


Aperture (mm) = 25.4/M - d


Where M = mesh count per mm


And d = wire diameter in mm


Mesh Count


The number of apertures or wires in a linear inch.


Mesh Count= 25.4/(a+d)


Where a = aperture in mm


And d = wire diameter in mm


Open Area


The proportion of aperture expressed as a percentage of the whole area.


Open area % = a2/(a+d)2 x 100


Where a = aperture in mm


And d = wire diameter in mm


Selvedge


The finished edge formed by looped weft wires at either side of the mesh.


SWG


Standard Wire Gauge - a numbering system for standard wire diameters


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