Hexagonal braid

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Hexagonal structure of a chicken wire for keeping small animals with counter-twisting

A Hexagonal (colloquially chicken wire, chicken wire or chicken wire is called) a wire mesh , which for small animal husbandry and breeding and protection from wild rabbits and other small game is used. The mostly corrosion-protected wires of the hexagonal braid are twisted together , whereby different mesh sizes are used according to a European standard .

history

Charles Barnard built in 1844 in Norwich ( England the world's first wire mesh machine). The construction was based on a cloth loom. He founded Barnard, Bishop & Barnard in Norwich and sold the wire mesh all over the world.

The International Association for Hexagonal Wire Mesh was founded in 1932 and included factories in Germany , Belgium , France , the Netherlands , Austria , the Saar region , Czechoslovakia and Denmark . The sale was transferred to the jointly founded sales office Iweco ( International Wire-Export-Co. ) In Brussels .

use

Protection of a new planting

In the keeping of small animals, the rabbit wire is used to build doors for simple rabbit halls or the corresponding free-range enclosure. Hence the name Hasenstallgitter used in Austria. The use of rabbit wire is only suitable to a limited extent for game animals and rodents , as rabbits can bite through a wire, which immediately creates a larger hole. The exposed wire ends can cause serious injuries. In particular, if the animal sticks its head through the opening and pulls it back, the pointed end of the wire can bury its neck. In addition, rabbit wires do not offer any protection against predators, as they can easily create larger holes in the wire mesh with claws and teeth.

As chicken wire, it is a cost-effective variant for delimiting the free range and thus prevents the animals from breaking out, but is hardly suitable against predators such as fox or martens . It can also be used for aviaries , although spot-welded grids with a smaller mesh size are often preferred, as the birds are better protected from intruders (e.g. mice).

In gardening and vegetable growing, the hexagonal mesh is used as a fence to keep wild rabbits and small game away, while new plantings for reforestation in forests are often individually secured against browsing . The 13 mm version can be used to protect the roots of young fruit trees from voles . A non-galvanized variant is preferred here, so that the metal is already rusted when the roots of the tree have developed a corresponding size. When placed in the ground, the wire mesh rusts over time and allows the roots to spread unhindered. Alternatively, galvanized wire baskets with a larger volume can defuse the time between rusting and the formation of stronger roots.

The wire mesh is sometimes attached to churches to keep pigeons away from sculptures on the facades.

In the field of model construction, a wire mesh made of rabbit wire can serve as a basic framework in order to define the rough terrain. The same applies to the creation of sculptures made of paper mache , plaster of paris or concrete .

In stucco work , inexpensive rabbit wire is often used instead of reinforcing fabric , as it can be inserted quickly and with a more stable shape and also effectively prevents exposed (ceiling) parts from flaking off.

construction

Different types of twist

The hexagonal meshes of the wire mesh are formed from thin, flexible galvanized steel wires, whereby adjacent wires are twisted together. One twist corresponds to wrapping both wires by 180 °, so that if the wires are twisted several times, the result is a solid, helical winding of the wires. A distinction is made between a regular twist, in which all turns (at least three twists) run in the same direction, and a counter-twist, in which the turns are first in one direction and then in the other. The standard EN 10223-2: 2013-02 prescribes at least one and a half twists for each direction.

The average mesh size of the hexagonal mesh (distance measured at right angles between two twisted sides) is 1 inch (about 2.5 cm), 2 inches (about 5 cm) and ½ inch (about 13 mm). The wire thickness is between 0.7 mm and 1.0 mm depending on the fineness of the braid (corresponding to gauge  19–22). The edges of the wire mesh can be reinforced with additional wires. Additional tension wires can be braided in for widths over 50 cm. The typical widths of the hare wire are between 50 and 200 cm. The wire meshes are available bare, galvanized or coated in green.

Web links

Commons : Chicken wire  - Collection of pictures, videos and audio files

Individual evidence

  1. Ken Ward: A History of Norwich - Victorian Norwich. In: Old City web sites in Norwich, Norfolk, UK. November 28, 2006, accessed June 1, 2017 .
  2. Wire netting machine - Charles Barnard . In: Google Cultural Institute . ( google.com [accessed May 7, 2017]).
  3. ^ Founding of the International Association for Hexagonal Wire Mesh. (pdf, 3 MB) In: Steel and Iron. Journal for the German iron and steel industry. Edited by the Association of German Ironworkers, December 10, 1931, p. 1553 , accessed on June 1, 2017 .
  4. Why not a rabbit wire for your rabbit enclosure? (pdf, 451 kB) Rabbit Protection e. V., March 2013, accessed May 7, 2017 .
  5. ^ Werner Lantermann: Parrot science: biology, behavior, keeping; Species selection of parakeets and parrots . Parey Buchverlag, Berlin 1999, ISBN 978-3-8263-3174-9 , pp. 247 .
  6. Fruit tree planting: Vole protection - a special problem . BUND local group Lemgo , accessed on June 1, 2017.
  7. Mascha Schacht: Plant Protection Practice Coach: The perfect all-round information package . BLV Buchverlag, Munich, ISBN 978-3-8354-1542-3 , p. 110.
  8. A quick method for landscaping with wire and plaster of paris. In: Railway magazine. Retrieved June 1, 2017 .
  9. DIN EN 10223-2: 2013-02 (D) Steel wire and wire products for fences and wire mesh - Part 2: Steel wire mesh with hexagonal mesh for agricultural purposes, insulation and fences; German version EN 10223-2: 2012 .