EP4171847B1 - Stahldrahtgeflecht aus stahldrähten mit sechseckigen maschen, herstellungsvorrichtung und herstellungsverfahren - Google Patents

Stahldrahtgeflecht aus stahldrähten mit sechseckigen maschen, herstellungsvorrichtung und herstellungsverfahren Download PDF

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Publication number
EP4171847B1
EP4171847B1 EP22700921.4A EP22700921A EP4171847B1 EP 4171847 B1 EP4171847 B1 EP 4171847B1 EP 22700921 A EP22700921 A EP 22700921A EP 4171847 B1 EP4171847 B1 EP 4171847B1
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EP
European Patent Office
Prior art keywords
hexagonal
mesh
steel
steel wire
steel wires
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EP22700921.4A
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German (de)
English (en)
French (fr)
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EP4171847C0 (de
EP4171847A1 (de
Inventor
Mario Brunn
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Geobrugg AG
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Geobrugg AG
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/02—Making wire network, i.e. wire nets without additional connecting elements or material at crossings, e.g. connected by knitting
    • B21F27/06—Manufacturing on twister-gear machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/005—Wire network per se
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/02—Making wire network, i.e. wire nets without additional connecting elements or material at crossings, e.g. connected by knitting
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10—Patterned fabrics or articles
    • D04B1/102—Patterned fabrics or articles with stitch pattern
    • D04B1/108—Gussets, e.g. pouches or heel or toe portions
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
    • E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2101/00—Inorganic fibres
    • D10B2101/20—Metallic fibres
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/20—Industrial for civil engineering, e.g. geotextiles
    • D10B2505/204—Geotextiles
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2507/00—Sport; Military
    • D10B2507/02—Nets

Definitions

  • the invention relates to a hexagonal braid made of steel wires according to the preamble of claim 1, a manufacturing device according to the preamble of claim 13 and a manufacturing method according to claim 16.
  • the object of the invention is, in particular, to provide a generic steel wire mesh made of high-strength steel wires with an improved mesh geometry, in particular improved mesh width-to-mesh height ratios.
  • the object is achieved according to the invention by the features of patent claims 1, 13 and 16, while advantageous refinements and developments of the invention can be found in the subclaims.
  • the invention is based on a steel wire mesh, in particular a hexagonal mesh, made of steel wires with hexagonal meshes, in particular for construction purposes, preferably for use in the field of natural hazard protection, the steel wires being alternately twisted with adjacent steel wires, preferably regularly, and the steel wires are formed from a high-strength steel or at least have a wire core made from a high-strength steel (eg coated or coated high-strength steel wires).
  • a, in particular average, ratio of a, in particular average, mesh size of the hexagonal meshes and of a, in particular average, mesh height of the hexagonal meshes measured perpendicular to the mesh size is at least 0.8.
  • a steel wire mesh made of high-strength steel wires with a particularly advantageous mesh geometry that is already widespread and proven, especially in the non-high-strength area can advantageously be provided.
  • known and proven retention properties of hexagonal meshes for example those dependent on the size of the rock, can be retained, while a strength, ie, for example, tear or breaking strength, of the hexagonal mesh can be significantly increased.
  • existing plans and designs e.g.
  • embankment protection gabions of coastal protection gabions, of river mattresses, of stone rollers, etc.
  • non-high-strength hexagonal meshes with standard-compliant mesh sizes
  • an identical filling material in particular with identical grain size of the filling material, can advantageously be used for the embankment protection gabions, the coastal protection gabions, the river mattresses and/or the stone rollers. This can advantageously reduce costs and workload.
  • the steel wire mesh according to the invention is neither compatible with known conventional machines nor with that in the patent specification PL 235814 B1 described manufacturing device can be produced. More, in Modifications and/or process steps explained in this document are therefore absolutely necessary for producing the steel wire mesh according to the invention.
  • the hexagonal meshes have shapes of at least substantially symmetrical hexagons.
  • the hexagonal meshes each have a slightly elongated honeycomb shape.
  • the hexagonal meshes form a seamless tiling in a mesh level of the steel wire mesh.
  • Construction purposes should be understood to mean in particular purposes that include planning, execution and/or a change to a building. Examples of uses in natural hazard protection are the aforementioned gabions, such as embankment protection gabions, stone rollers, coastal protection gabions, or river mattresses, but also terrain spans, safety fences or the like.
  • an average value of a parameter such as an average mesh size-mesh height ratio, an average mesh size, an average mesh height, an average length of a twisted region of the steel wire mesh delimiting a hexagonal mesh, an average length of a twist, an average input curvature of the steel wire in a transition from a section of the steel wire delimiting a hexagonal mesh and at least substantially straight to a twisted area of the steel wire delimiting the hexagonal mesh, a mean initial curvature of the steel wire in a transition from the twisted area of the steel wire delimiting the hexagonal mesh to a hexagonal one Mesh delimiting and at least substantially straight further section of the steel wire and / or a mean opening angle of the hexagonal mesh, from an average of several, in particular at least three, preferably at least five, preferably at least seven and particularly preferably at least ten, meshes of the steel wire mesh having the parameter formed, the meshes used to form the mean value preferably not being directly adjacent to one another.
  • a parameter such as an average mesh size-mes
  • a “mesh width” is intended to be understood in particular as a distance between two twisted areas of the steel wire mesh, which delimit a hexagonal mesh, run at least essentially parallel to one another and lie on opposite sides of the hexagonal mesh.
  • a “mesh height” is to be understood in particular as a distance between two corners of a hexagonal mesh of the steel wire mesh that lie opposite each other in a direction parallel to a main extension direction of the twisted region.
  • a twisting of the two steel wires delimiting the hexagonal mesh begins and/or ends at the corners of the hexagonal mesh between which the mesh height is measured.
  • the mesh size of the hexagonal meshes of the steel wire mesh is smaller than the mesh height of the hexagonal meshes of the steel wire mesh.
  • a “main extension direction” of an object should be understood to mean, in particular, a direction which runs parallel to a longest edge of a smallest geometric cuboid, which just completely encloses the object
  • the high-strength steel of the steel wires has a tensile strength of at least 1560 N/mm 2 , preferably of at least 1700 N/mm 2 and preferably of at least 1950 N/mm 2 .
  • This can advantageously achieve a particularly high stability of the steel wire mesh and/or of structures made from/with the steel wire mesh. This can advantageously achieve particularly good protection against natural hazards, for example.
  • the high-strength steel of the steel wires for example, also has a tensile strength of at most 2150 N/mm 2
  • the brittleness of the steel wires of the steel wire mesh which increases due to an increase in the tensile strength, can advantageously be kept as low as possible.
  • This balance is particularly advantageous when using the steel wire mesh for the production of any type of gabion.
  • a particularly high filling capacity and thus a particularly large and stable construction of the gabions can be achieved, which at the same time is particularly break-resistant if an event occurs, such as a rockfall in which rocks fall onto the gabion.
  • a, in particular average, length of a twisted region delimiting a hexagonal mesh is at least 30%, preferably at least 35% and preferably at least 40%, of the, in particular average, mesh height.
  • a, in particular average, length of a twisted region delimiting a hexagonal mesh is at least 50%, preferably at least 55% and preferably at least 60%, of the, in particular average, mesh size.
  • a, in particular average, length of a twist within a twisted area delimiting a hexagonal mesh is smaller than 1.1 cm, preferably smaller than 1 cm, preferably with a diameter of the steel wires between 2 mm and 4 mm.
  • a mesh height can advantageously be kept in a desired range without requiring excessive input curvatures and/or output curvatures during a transition into/from the twisted area to/from a non-twisted area delimiting the hexagonal mesh.
  • an, in particular medium, input curvature of the steel wire is at least substantially the same size as the, in particular medium, output curvature at a transition from a section of the steel wire delimiting a hexagonal mesh and at least substantially straight to a twisted region of the steel wire delimiting the hexagonal mesh of the steel wire at a transition from the twisted area of the steel wire delimiting the hexagonal mesh to a further section of the steel wire delimiting the hexagonal mesh and at least substantially straight.
  • a particularly high symmetry of the hexagonal meshes can advantageously be achieved, whereby a particularly uniform load capacity can advantageously be achieved in at least two pulling directions of the steel wire mesh that are opposite along the mesh height, preferably in all directions of the steel wire mesh.
  • “essentially the same size” means, in particular, a deviation in the radii of curvature of the curvatures of less than 20%, preferably less than 15%, advantageously less than 10%, preferably less than 5% and particularly preferably less be understood as 2.5%.
  • the steel wires bend at least substantially to the same extent as in the transition from the hexagonal mesh delimiting twisted area of the steel wire to the further section of the steel wire delimiting the hexagonal mesh and at least substantially straight.
  • bending essentially to the same extent is intended to mean, in particular, that kinks at the transitions that can be seen in the plan view of the steel wire mesh have bending angles that are less than 20%, preferably less than 15%, advantageously less than 10%, preferably by less than 5% and particularly preferably by less than 2.5%.
  • a twisted area delimiting a hexagonal mesh comprises more than three consecutive, in particular rectified, twists.
  • a high level of stability of the steel wire mesh can advantageously be achieved.
  • the probability of a twisted area being completely untwisted in the event of a wire break in the twisted area can also be reduced.
  • the twisted region delimiting the hexagonal meshes has at least five or at least seven consecutive, preferably rectified, twists.
  • a twist is to be understood as meaning that one of the steel wires is wrapped around 180° by the neighboring steel wire.
  • a fixed helical winding of two wires around each other with both wires wrapped around 180° should be understood as a twist. With three consecutive twists, each steel wire is wrapped around the other steel wire by 540° (5 times: 900°, 7 times: 1260°).
  • At least one opening angle of the hexagonal mesh, which spans the hexagonal mesh in the longitudinal direction is at least 70°, preferably at least 80° and preferably at least 90°, a high stability can advantageously be achieved while maintaining the mesh width/mesh height ratio of at least 0. 8 can be achieved.
  • the mesh width/mesh height ratio of at least 0.8 can be advantageous while at the same time being sufficiently long and thus avoiding wire breaks twisted areas can be achieved.
  • the opening angle spanning the hexagonal mesh in the longitudinal direction is in particular the angle which is spanned by the (untwisted) steel wires at the corner at which the two steel wires delimiting the hexagonal mesh together (all around) meet or separate.
  • the hexagonal mesh comprises two opening angles spanning the hexagonal mesh in the longitudinal direction.
  • both opening angles spanning the hexagonal mesh in the longitudinal direction are at least 70°, preferably at least 80° and preferably at least 90°.
  • both opening angles spanning the hexagonal mesh in the longitudinal direction are at least essentially the same size.
  • “essentially the same size” should be understood to mean, in particular, a size match of the opening angles with a maximum relative deviation of 8°, preferably 6°, advantageously 4° and preferably 2°.
  • the longitudinal direction of the hexagonal mesh runs in particular parallel to the main direction of extension of the hexagonal mesh.
  • the hexagonal meshes have a, in particular medium, mesh size of approximately 60 mm, approximately 80 mm or approximately 100 mm, a high and rapid acceptance of the steel wire mesh in planning and construction projects can advantageously be achieved. This can be advantageous for simple reinforcement of structures that have already been planned or designed, in particular by means of a particularly easy rescheduling.
  • the hexagonal meshes have a mesh size and/or mesh shape corresponding to the EN 10223-3:2013 standard.
  • the steel wire has a diameter of 2 mm, 3 mm, 4 mm or a value between 2 mm and 4 mm.
  • the high-strength steel of the steel wires is made of a stainless steel type or at least includes a jacket made of a stainless steel type, a particularly high corrosion resistance and, associated with this, a particularly long service life of the structures comprising the steel wire mesh can be obtained.
  • Service lives of 100 or more years are increasingly being demanded by clients and can theoretically be achieved by using stainless steel types.
  • the steel wire is made from a stainless steel with a material number according to the standard DIN EN 10027-2:2015-07, which is between 1.4001 to 1.4462, for example from a stainless steel with a material number according to DIN EN 10027-2:2015-07 -Material numbers 1.4301, 1.4571, 1.4401, 1.4404 or 1.4462.
  • the steel wires have an anti-corrosion coating or a corrosion protection coating, a high level of corrosion resistance and, as a result, a long service life can advantageously also be achieved, while costs can be kept low compared to stainless steel wires.
  • the anti-corrosion coating is designed as a galvanizing, as a ZnAl coating, as a ZnAIMg coating or as a comparable metallic anti-corrosion coating.
  • the corrosion protection coating is designed as a non-metallic coating surrounding the steel wire in the circumferential direction, for example as a plastic cover (e.g. PVC) or as a graphene cover.
  • the corrosion protection coating be at least a class B corrosion protection coating according to the standard DIN EN 10244-2:2001-07, preferably as a class A corrosion protection coating the standard DIN EN 10244-2:2001-07.
  • This can advantageously achieve a particularly high level of corrosion resistance and, as a result, a long service life.
  • the starting materials ie the unbent steel wires, have the Class B or Class A corrosion protection coating, but also the finished steel wire mesh.
  • At least a portion of the steel wire mesh with the corrosion protection layer has, in a test using a climate change test, a corrosion resistance of more than 1680 hours, preferably more than 2016 hours, advantageously more than 2520 hours, preferably more than 3024 hours and particularly preferably more than 3528 hours.
  • a “climate change test” is to be understood in particular as a corrosion resistance test of the corrosion protection, in particular of the corrosion protection layer, preferably in accordance with the specifications of the VDA (Association of the Automotive Industry) recommendation VDA 233-102, which in particular includes fogging and/or spraying at least in a partial period of a test piece with a salt spray and/or exposes the test piece to a temperature change from room temperature to sub-zero temperatures in at least a partial period.
  • test conditions can advantageously be adapted more closely to real conditions to which the wire mesh device is exposed, in particular during field use.
  • the test piece is preferably designed as a section of wire that is at least essentially identical to the wire of the wire mesh device, preferably as a section of the wire of the wire mesh device.
  • the climate change test is preferably carried out in accordance with the usual boundary conditions for climate change tests known to a person skilled in the art, as listed in particular in the VDA recommendation VDA 233-102 of June 30, 2013. The climate change test is carried out in particular in a test chamber.
  • a climate change test cycle is divided into seven cycle parts.
  • a test cycle for the climate change test lasts in particular one week. One part of the cycle in particular lasts one day.
  • a test cycle includes three different sub-test cycles.
  • a sub-test cycle forms a cycle part.
  • the three sub-test cycles include at least one cycle A, at least one cycle B and/or at least one cycle C.
  • sub-test cycles run one after the other in the following order: cycle B, cycle A, cycle C, cycle A, cycle B, cycle B, cycle A
  • Cycle A particularly includes a salt spray phase.
  • a salt spray mist is sprayed particularly within the test chamber.
  • the salt solution sprayed during cycle A consists in particular of a solution of sodium chloride in distilled water, preferably boiled before the solution is prepared, which preferably has an electrical conductivity of at most 20 ⁇ S/cm at (25 ⁇ 2) ° C a mass concentration in a range of (10 ⁇ 1) g/l.
  • the test chamber for the climate change test in particular has an internal volume of at least 0.4 m3. Particularly when the test chamber is in operation, the internal volume is homogeneously filled with salt spray.
  • the upper parts of the test chamber are preferably designed in such a way that no drops formed on the surface can fall onto a test piece.
  • a temperature during the spraying of the salt spray, in particular within the test chamber is (35 ⁇ 0.5) ° C, the temperature preferably being measured at least 100 mm away from a wall of the test chamber.
  • Cycle B includes, in particular, a work phase during which the temperature is maintained at room temperature (25 °C) and the relative humidity is maintained at a room-typical relative humidity (70%).
  • the work phase can In particular, the test chamber is opened and the test piece is examined and/or checked.
  • Cycle C particularly includes a freezing phase.
  • the test chamber temperature in particular is kept at a value below 0 °C, preferably -15 °C.
  • Corrosion resistance should in particular mean a durability of a material during a corrosion test, for example a climate change test, in particular in accordance with the VDA recommendation VDA 233-102 of June 30, 2013, during which the functionality of a test piece remains and/or preferably a temporal one Duration during which a threshold value of a corrosion parameter is undershot in a test piece during a climate change test can be understood.
  • the fact that “functionality remains” should be understood in particular to mean that material properties of a test piece that are important for the functionality of a wire network, such as tear strength and/or brittleness, remain essentially unchanged.
  • a material property remains essentially unchanged is intended to mean, in particular, that a change in a material parameter and/or a material property is less than 10%, preferably less than 5%, preferably less than 3% and particularly preferably less than 1% Comparison to an initial value before the corrosion test.
  • the corrosion parameter is preferably designed as a percentage of a total surface of a test piece on which dark brown rust (DBR), in particular visually, can be recognized.
  • the threshold value of the corrosion parameter is preferably 5%.
  • Corrosion resistance therefore preferably indicates a period of time which elapses up to 5% of a total surface of a test piece, in particular exposed to the salt spray in the climate change test, where dark brown rust (DBR) is visually recognizable.
  • the corrosion resistance is preferably the time between starting the climate change test and an appearance of 5% DBR on the surface of the test piece.
  • the manufacturing process of the anti-corrosion-coated steel wire mesh used is specifically adapted so that the resulting steel wires have a high breaking strength despite the high tensile strengths and despite the thick anti-corrosion layers and, in particular, survive the manufacturing process for the steel wire mesh in such a way that the resulting steel wire mesh is break-free and that the anti-corrosion layer is undamaged remains.
  • the coating temperature is specifically selected so that additional embrittlement of the coated high-strength steel wires can be kept to a minimum.
  • the temperature of the coating bath is deliberately kept lower than usual.
  • the coating temperature of the coating bath in each work step remains below 440 ° C, preferably below 435 ° C, advantageously below 430 ° C, preferably below 425 ° C.
  • the coating temperature of the coating bath remains above 421 °C.
  • an additional escape of carbon from the high-strength steel wires during the coating process, which influences the brittleness and strength of the steel wire is taken into account.
  • a manufacturing process for the steel wire mesh from the coated steel wires is preferably specifically adapted so that breaking of the steel wire or damage to the corrosion protection layer when braiding the hexagonal meshes is prevented as far as possible.
  • a twisting speed at which adjacent steel wires are twisted is reduced compared to conventional manufacturing processes.
  • the twisting speed is at least 0.5 seconds per (180°) twist, preferably at least 0.75 seconds per (180°) twist and preferably at least one second per (180°) twist.
  • the mass per unit area of the anti-corrosion layer is at least 115 g/m 2 .
  • the mass per unit area of the anti-corrosion layer is at least 135 g/m 2 .
  • the mass per unit area of the anti-corrosion layer is at least 135 g/m 2 .
  • the mass per unit area of the anti-corrosion layer is at least 150 g/m 2 .
  • the mass per unit area of the anti-corrosion layer is at least 205 g/m 2 .
  • the mass per unit area of the anti-corrosion layer is at least 255 g/m 2 .
  • the mass per unit area of the anti-corrosion layer is at least 275 g/m 2 .
  • the mass per unit area of the anti-corrosion layer is at least 280 g/m 2 .
  • the steel wire used and the corrosion protection layer applied to the steel wire in particular in at least one test test, withstands without damage, in particular without breakage, twisting the wire N times, where N, if necessary by rounding, as B R -0.5 d - 0.5 can be determined and where d is a diameter of the wire in mm, R is a tensile strength of the wire in N mm -2 and B is a factor of at least 960 N 0.5 mm - 0.5 , preferably at least 1050 N 0.5 mm -0.5 , advantageously at least 1200 N 0.5 mm -0.5 , preferably at least 1500 N 0.5 mm -0.5 and particularly preferred at least 2000 N is 0.5 mm -0.5 .
  • twisting test is carried out in accordance with the requirements of the standards DIN EN 10218-1:2012-03 and DIN°EN°10264-2:2012-03.
  • a significantly stricter and/or more load-specific selection process for a suitable wire can be provided compared to a twisting test in accordance with the standards DIN EN 10218-1:2012-03 and DIN°EN°10264-2:2012-03.
  • “Twisting” is intended to mean, in particular, twisting of a clamped wire about a longitudinal axis.
  • the steel wire used and the corrosion protection layer applied to the steel wire survives without damage, in particular without breakage, bending the wire back and forth M times around at least one bending cylinder with a diameter of at most 8d, preferably at most 6d, preferably at most 4d and particularly preferably at most 2d, each protruding by at least 90 ° in opposite directions, where M can be determined, if necessary by rounding off, as C R -0.5 d -0.5 and where d is a diameter of the wire in mm , R a tensile strength of the wire in N mm -2 and C a factor of at least 350 N 0.5 mm -0.5 , preferably at least 600 N 0.5 mm -0.5 , advantageously at least 850 N 0.5 mm - 0.5 , preferably at least 1000 N 0.5 mm -0.5 and particularly preferably at least 1300 N 0.5 mm -0.5 .
  • the back and forth bending test is carried out in accordance with the specifications of the standards DIN EN 10218-1:2012-03 and DIN°EN°10264-2:2012-03.
  • a significantly stricter and/or more load-specific selection process for a suitable wire can be provided compared to a back and forth bending test in accordance with the standards DIN EN 10218-1:2012-03 and DIN°EN°10264-2:2012-03.
  • the wire is preferably bent around two opposite, identically designed bending cylinders.
  • At least two sections of the steel wires in particular in a test experiment, be broken-free with at least N+1 twists, preferably N+2 twists and preferably N+4 twists, comprehensive helical entanglement around each other, where N is a number of twists of the steel wires delimiting the hexagonal meshes on opposite sides, optionally by rounding.
  • N is a number of twists of the steel wires delimiting the hexagonal meshes on opposite sides, optionally by rounding.
  • a manufacturing device for braiding a steel wire mesh with hexagonal meshes, in particular a hexagonal mesh, from steel wires comprising high-strength steel with at least one arrangement of twisting units for an alternating twisting of steel wires with further steel wires guided on opposite sides of the steel wires and with at least one rotatable roller downstream of the twisting units, which has entraining lugs on a lateral surface, which are intended to engage in the newly braided hexagonal meshes and thereby push or pull the steel wire mesh forward, the twisting units being intended to overtwist the steel wires and / or where the rotatable roller is intended to overstretch a mesh size of the hexagonal mesh, in particular in comparison to the mesh size of a finished hexagonal mesh.
  • each twisting unit comprises two half-shell twisting elements, each of which guides a steel wire and which are rotated alternately around a common axis of rotation and around two separate axes of rotation to twist, each of the half-shells being combined with a half-shell of an adjacent twisting unit, in particular when rotating separately from one another.
  • an axis of rotation of the rotatable roller is aligned at least substantially perpendicular to the axes of rotation of the twisting units.
  • the fact that the twisting units are intended to "overtwist" the steel wires should be understood to mean that an angle of rotation passed through the twisting units onto the steel wires during a twisting process is greater than a total twisting angle that delimits the hexagonal meshes of the finished steel wire mesh twisted areas.
  • the rotatable roller is intended to "overstretch" the mesh size of the hexagonal mesh should be understood in particular to mean that a mesh size imposed on the steel wire mesh by the rotatable roller, in particular by the driving lugs of the rotatable roller, is larger than a mesh size of the hexagonal mesh Meshes of the finished steel wire mesh.
  • “Provided” is intended to mean, in particular, specifically designed and/or equipped.
  • the fact that an object is intended for a specific function should be understood in particular to mean that the object fulfills and/or executes this specific function in at least one application and/or operating state.
  • twisting of the steel wires twisted together and/or the over-stretching of the hexagonal meshes is intended to cause the steel wires, which are much more elastic than non-high-strength steel, to spring back
  • an extent of overtwisting/twisting is selected such that a springback effect corresponding to the material, tensile strength and wire thickness of the steel wire used in each case is compensated as completely as possible.
  • U is an odd integer ⁇ 3 , which preferably corresponds to a number of twists within a twisted area of the finished steel wire mesh delimiting a hexagonal mesh
  • G is any real number ⁇ 1 and ⁇ 3.
  • G is greater than or equal to 1.5, preferably greater than or equal to 2.
  • the manufacturing device has a stretching unit integrated in the rotatable roller, downstream of the rotatable roller or arranged separately, which is intended to stretch a finished hexagonal mesh at least in a direction parallel to the mesh width, preferably to stretch it by at least 30%, preferably to stretch by at least 50% and particularly preferably to stretch by at least 55%.
  • the stretching unit is intended to create several meshes of the steel wire mesh in the direction parallel to the mesh width which are arranged one behind the other or at a distance from one another, can be grasped and stretched at the same time.
  • at least a large part of all hexagonal stitches of the mesh is stretched directly.
  • the phrase “directly stretched” is intended to mean in particular that the stretching unit contacts the stitch directly and stretches it independently of the stretching of other stitches.
  • a “large part” should be understood to mean in particular 10%, preferably 20%, advantageously 30%, particularly advantageously 50%, preferably 66% and particularly preferably 85%.
  • a manufacturing method for braiding a hexagonal braid is proposed, in particular by means of a manufacturing device according to the invention.
  • a steel wire mesh made of high-strength steel wires with a particularly advantageous mesh geometry which is already widespread and proven, especially in the non-high-strength area, can be provided if the steel wires are overtwisted in twisted areas of the hexagonal mesh during the production of the hexagonal mesh and / or if the hexagonal Meshes are stretched in a direction parallel to the mesh size by at least 30%, it is advantageously possible to produce a steel wire mesh made of high-strength steel wires with improved mesh geometry, in particular with standard mesh width-mesh height ratios, which cannot be achieved using previously known methods.
  • the steel wire mesh according to the invention, the manufacturing device according to the invention and the manufacturing method according to the invention should not be limited to the application and embodiment described above.
  • the steel wire mesh according to the invention, the manufacturing device according to the invention and the manufacturing method according to the invention can fulfill one described herein Functionality has a number of individual elements, components and units that deviate from the number mentioned herein, as long as they fall within the scope of protection defined in the claims.
  • the Fig. 1 shows a section of a state-of-the-art steel wire mesh 254 with hexagonal meshes 216, as currently available from the company of the applicant for the patent PL 235814 B1 (Nector Sp. z oo, Krakow, Poland) is manufactured and distributed.
  • the steel wire mesh 254 is made of high-strength steel wires 210, 212, 214.
  • the steel wire mesh 254 has a mesh size 218 and a mesh height 220.
  • a mesh size to mesh height ratio of the steel wire mesh 254 from the prior art is significantly less than 0.75.
  • the mesh size to mesh height ratio of the prior art steel wire mesh 254 is approximately 0.5.
  • the Fig. 2 shows schematically a steel wire mesh 54a according to the invention.
  • the steel wire mesh 54a is intended for use for construction purposes.
  • the steel wire mesh 54a is intended for use in the area of natural hazard protection.
  • the steel wire mesh 54a is designed as a hexagonal mesh.
  • the steel wire mesh 54a has hexagonal shapes Stitches 16a on.
  • the steel wire mesh 54a is formed from steel wires 10a, 12a, 14a.
  • the steel wires 10a, 12a, 14a are made of high-strength steel.
  • the high-strength steel from which the steel wires 10a, 12a, 14a are formed has a tensile strength of at least 1700 N/mm 2 and at most 2150 N/mm 2 .
  • the steel wires 10a, 12a, 14a are made of a high-strength steel with a tensile strength of approximately 1950 N/mm 2 .
  • the steel wires 10a, 12a, 14a made of high-strength steel have a (not high-strength) corrosion protection coating 50'a (cf. Fig. 4 ) or a (not high-strength) corrosion protection coating 48a (cf. Fig. 3 ) exhibit.
  • the anti-corrosion coating 48a is designed at least as a class B anti-corrosion coating according to the standard DIN EN 10244-2:2001-07.
  • the corrosion protection coating 48a is designed as a class A corrosion protection coating according to the standard DIN EN 10244-2:2001-07.
  • the steel wires 10a, 12a, 14a of the steel wire mesh 54a are alternately twisted with adjacent steel wires 10a, 12a, 14a of the steel wire mesh 54a to form the hexagonal meshes 16a.
  • the twisted areas 24a each comprise at least three consecutive twists 28a, 38a, 40a.
  • Each twist 28a, 38a, 40a comprises a 180° turn of a steel wire 10a, 12a, 14a of the steel wire mesh 54a around another steel wire 10a, 12a, 14a of the steel wire mesh 54a.
  • the twisted areas 24a have exactly three twists 28a, 38a, 40a.
  • Each of the twists 28a, 38a, 40a has a length 26a.
  • the lengths 26a of the twists 28a, 38a, 40a are approximately the same.
  • the shapes of the twists 28a, 38a, 40a are approximately the same.
  • the medium length 26a of the twists 28a, 38a, 40a within the twisted areas 24a of several of the hexagonal meshes 16a is smaller than 1.1 cm.
  • the hexagonal meshes 16a of the steel wire mesh 54a have a mesh height 20a.
  • the mesh height 20a is measured perpendicular to the mesh size 18a.
  • the mesh height 20a is designed as a largest opening length of the hexagonal meshes 16a.
  • the mesh height 20a is between a corner 66a of the hexagonal mesh 16a at which a twist 28a, 38a, 40a (different from the twisted areas 24a) of the two steel wires 10a, 12a which delimit the hexagonal mesh 16a all around begins and another corner 68a of the hexagonal mesh 16a at which the twist 28a, 38a, 40a (different from the twisted areas 24a) of the two steel wires 10a, 12a which delimit the hexagonal mesh 16a all around ends, measured.
  • the twisted areas 24a delimit the hexagonal meshes 16a on two opposite sides. Each twisted area 24a (possible exception: edge of the steel wire mesh 54a) delimits two adjacent hexagonal meshes 16a at the same time. Each of the twisted areas 24a has a length 22a. The lengths 22a of the twisted areas 22a are approximately the same size. The average length 22a of the twisted areas 24a delimiting the hexagonal meshes 16a is at least 30% of the average mesh height 20a of several hexagonal meshes 16 of the steel wire mesh 54a.
  • the hexagonal meshes 16a of the steel wire mesh 54a have a mesh size 18a.
  • the mesh size 18a is designed as a shortest distance between the two twisted areas 24a delimiting a hexagonal mesh 16a.
  • the average length 22a of the twisted areas 24a delimiting the hexagonal meshes 16a is at least 50% of the average mesh size 18a of several hexagonal meshes 16a of the steel wire mesh 54a.
  • the average mesh size 18a of the hexagonal meshes 16a is typically about 60 mm, about 80 mm or about 100 mm. Im in the Fig. 2 In the case shown as an example, the mesh size 18a is approximately 80 mm.
  • An average ratio of the average mesh size 18a of a plurality of hexagonal meshes 16a of the steel wire mesh 54a and the average mesh height 20a of the hexagonal meshes 16a is at least 0.8.
  • a mesh size-mesh height ratio formed from the mesh size 18a and the mesh height 20a is at least 0.8. In which, for example, in the Fig. 2 In the case shown, the m mesh width-mesh height ratio is 0.8.
  • the hexagonal meshes 16a have a first opening angle 44a spanning the hexagonal meshes 16a in the longitudinal direction 42a of the hexagonal meshes 16a.
  • the longitudinal direction 42a points in a manufacturing direction of the steel wire mesh 54a, i.e. from a twisted area 24a produced later to a twisted area 24a produced earlier. Alternatively, the longitudinal direction 42a can also point in the opposite direction.
  • the first opening angle 44a spans the hexagonal mesh 16a at a corner 66a which is further forward in the longitudinal direction 42a.
  • the hexagonal meshes 16a have a second opening angle 70a spanning the hexagonal meshes 16a in the longitudinal direction 42a of the hexagonal meshes 16a.
  • the second opening angle 70a spans the hexagonal mesh 16a at a corner 68a located further back in the longitudinal direction 42a.
  • the two opening angles 44a, 70a lie at the opposite corners 66a, 68a of the hexagonal meshes 16a.
  • the average first opening angle 44a of several hexagonal meshes 16a of the steel wire mesh 54a is at least 70°. In the in the Fig. 2 In the example shown, the first opening angle 44a is approximately 90°.
  • the average second opening angle 70a of several hexagonal meshes 16a of the steel wire mesh 54a is at least 70°. In the in the Fig. 2 In the example shown, the second opening angle 70a is approximately 90°.
  • the opposite average opening angles spanning the hexagonal meshes 16a in the longitudinal direction 42a 44a, 70a of the hexagonal meshes 16a differ from each other by a maximum of 8°. In the in the Fig. 2 In the example shown, the opposite opening angles 44a, 70a of the hexagonal mesh 16a are approximately the same.
  • the two steel wires 10a, 12a which all around delimit a hexagonal mesh 16a of the steel wire mesh 54a, point along the longitudinal direction 42a and on opposite sides of the hexagonal mesh 16a at a transition 72a, at which the respective steel wire 10a, 12a from one of the hexagonal Mesh 16a delimiting and at least substantially straight section 32a of the respective steel wire 10a, 12a transitions to a twisted area 24a of the steel wire 10a, 12a delimiting the hexagonal mesh 16a, an input curvature 30a.
  • the average input curvature 30a and the average output curvature 34a of the steel wires 10a, 12a, 14a of several hexagonal meshes 16a are approximately the same size.
  • the steel wires 10a, 12a, 14a of the steel wire mesh 54a have a breaking strength suitable for producing the hexagonal meshes 16a with the mesh size to mesh height ratio of 0.8 or more.
  • the steel wires 10a, 12a of the steel wire mesh 54a are designed in such a way that two sections of the steel wires 10a, 12a, 14a survive a helical entanglement around each other comprising at least N+1 twists in a first twisting test attempt, where N, if necessary by rounding off, is a number of twists of the steel wires 10a, 12a, 14a delimiting the hexagonal meshes 16a on opposite sides.
  • the steel wires 10a, 12a, 14a therefore survive at least four twists.
  • the first twisting test is carried out for each steel wire batch before use for producing a steel wire mesh 54a.
  • two sections of the steel wires 10a, 12a, 14a of the steel wire batch are inserted at opposite ends into a test device 76a (cf. Fig. 5 ) clamped and twisted together until a wire break in at least one of the steel wires 10a, 12a, 14a is detected.
  • the steel wires 10a, 12a of the steel wire mesh 54a are designed such that two sections of the steel wires 10a, 12a, 14a undergo an alternating helical entanglement and development of the steel wires comprising at least three, preferably at least five and preferably at least seven back and forth twists in a second twisting test attempt 10a, 12a, 14a overlap each other.
  • the test pieces of the steel wires 10a, 12a, 14a are alternately entwined with each other by 180° and unentwined again. A twist of 180° in one of the two twisting directions counts as a back and forth twist.
  • the two sections of the steel wires 10a, 12a, 14a of the steel wire batch are also clamped into the test device 76a at opposite ends and twisted back and forth until a wire break in at least one of the steel wires 10a, 12a, 14a is detected.
  • this can advantageously ensure that the steel wires 10a, 12a, 14a do not break during the production of the steel wire mesh 54a according to the invention, in particular when the steel wires 10a, 12a, 14a are overtightened and/or when the steel wire mesh 54a is overstretched.
  • the steel wire mesh 54a according to the invention can develop a sufficient protective effect, which, for example, is also plastic and/or elastic in the case of a steel wire mesh 54 deforming event (e.g. a rockfall) has a sufficiently high resistance to breakage.
  • a steel wire mesh 54 deforming event e.g. a rockfall
  • the Fig. 5 shows a schematic representation of the test device 76a for carrying out the first twisting test attempt and/or for carrying out the second twisting test attempt.
  • the test device 76a includes two steel wire holding devices 78a, 80a for holding a pair of steel wires 10a, 12a in a fixed position and in a rotationally fixed manner.
  • the steel wires 10a, 12a held in the steel wire holding devices 78a, 80a are guided next to one another and parallel to one another before starting the respective twisting test test.
  • one of the two steel wire holding devices 78a, 80a is held rotationally fixed, while the other of the two steel wire holding devices 78a, 80a is rotated about an axis of rotation which is parallel to the initial longitudinal directions 82a of the steel wires 10a, 12a held by the steel wire holding devices 78a, 80a runs.
  • the Fig. 6 shows a schematic side view of a manufacturing device 52a for braiding the steel wire mesh 54a with the hexagonal meshes 16a, in particular for braiding a hexagonal mesh, from the steel wires 10a, 12a, 14a comprising the high-strength steel.
  • the manufacturing device 52a has a first wire supply device 84a for providing at least part of the starting material, for example at least the steel wire 10a.
  • the first wire supply device 84a is intended to accommodate at least one bobbin 86a with the wound high-strength steel wire 10a in a rotatable, in particular unrollable, manner.
  • the manufacturing device 52a has a wire straightening device 88a.
  • the wire straightening device 88a is intended to at least partially straighten the previously rolled steel wire 10a.
  • the manufacturing device 52a has a second wire supply device 90a. In the second wire supply device 90a, the steel wire 12a is wound in a spiral shape.
  • the manufacturing device 52a has an arrangement of twisting units 56a, 58a (see also Fig. 8 ).
  • the twisting units 56a, 58a are intended to twist the steel wires 10a, 12a supplied from the wire supply devices 84a, 90a with one another.
  • the twisting units 56a, 58a are intended to twist one steel wire 10a alternately with further steel wires 12a, 14a guided on opposite sides of the steel wire 10a.
  • the manufacturing device 52a has a rotatable roller 60a.
  • the rotatable roller 60a is arranged downstream of the twisting units 56a, 58a within the manufacturing device 52a.
  • the rotatable roller 60a is intended to advance or pull the steel wires 10a, 12a, 14a that have already been twisted together, preferably away from the twisting areas of the twisting units 56a, 58a.
  • the rotatable roller 60a is intended for continuous rotation.
  • the manufacturing device 52a has a braid winding device 92a.
  • the braid winding device 92a is intended to take the finished steel wire mesh 54a from the rotatable roller 60a and roll it up into braid rolls 94a.
  • the Fig. 7 shows a further schematic representation of the manufacturing device 52a from a perspective view.
  • the Fig. 8 shows schematically a partially sectioned detailed view of a part of the manufacturing device 52a.
  • the detail shown shows three twisting units 56a, 58a, 104a.
  • a first twisting unit 56a comprises two twisting elements 96a, 98a.
  • a second twisting unit 58a arranged adjacent to the first twisting unit 56a also includes two twisting elements 100a, 102a.
  • the twisting elements 96a, 98a, 100a, 102a of one of the twisting units 56a, 58a, 104a are each designed as half-shell partial elements of a cylindrical shape.
  • Each twisting element 96a, 98a, 100a, 102a of one of the twisting units 56a, 58a, 104a carries a single steel wire 10a, 12a, 14a.
  • Twisting elements 98a, 102a located at the back guide a steel wire 12a that is freely wound in a spiral.
  • the ones in the Fig. 8 Rear twisting elements 98a, 102a are arranged on a longitudinally movable rail 106a.
  • the twisting elements 98a, 102a are carried along with the movement of the rail 106a.
  • the rail 106a is movable back and forth in both directions along a longitudinal axis of the rail 106a.
  • the rail 106a can be moved back and forth in both directions parallel to a rotation axis 108a of the rotatable roller 60a.
  • the rail 106a can be moved back and forth in both directions perpendicular to the rotation axes 110a of the twisting units 56a, 58a, 104a.
  • different twisting elements 96a, 98a, 100a, 102a are alternately brought together.
  • the two twisting elements 96a, 98a belonging to the first twisting unit 56a are first brought together and the corresponding steel wires 10a, 12a are twisted.
  • the movement of the rail 106a then brings one of the twisting elements 96a of the first twisting unit 56a together with one of the twisting elements 102a of the second twisting unit 58a.
  • the twisting elements 96a, 98a, 100a, 102a that have been brought together rotate about a common axis of rotation 110a, whereby the steel wires 10a, 12a, 14a guided by the twisting elements 96a, 98a, 100a, 102a that have been brought together are twisted together.
  • the rotatable roller 60a rotates and thereby pulls the steel wires 10a, 12a, 14a out of the twisting units 56a, 58a, 104a.
  • the twisting units 56a, 58a, 104a are intended to overtwist the steel wires 10a, 12a, 14a during the twisting process in which the steel wires 10a, 12a, 14a are twisted together to form the twisted areas 24a.
  • the overtwisting of the steel wires 10a, 12a, 14a twisted together is intended to compensate for springing back of the high-strength steel wires 10a, 12a, 14a, which are much more elastic compared to non-high-strength steel, after the twisting process.
  • the twisting units 56a, 58a, 104a are intended to twist the steel wires 10a, 12a, 14a more than 3.5 times during the twisting process.
  • the twisting units 56a, 58a, 104a are intended to twist the steel wires 10a, 12a, 14a approximately 4 times during the twisting process.
  • the rotatable roller 60a has entraining lugs 64a on a lateral surface 62a.
  • the carrying lugs 64a are intended to engage in the newly braided hexagonal meshes 16a of the steel wire mesh 54a and thereby push or pull the steel wire mesh 54a forward during the ongoing twisting process.
  • the rotatable roller 60a is intended to overstretch the hexagonal meshes 16a in the direction of the mesh size 18a compared to the mesh size 18a of a completed hexagonal mesh 16a.
  • the carrying lugs 64a are intended to overstretch the hexagonal meshes 16a in the direction of the mesh width 18a.
  • the carrying lugs 64a have a shape which creates an over-expansion of the hexagonal meshes 16a in the direction of the mesh width 18a.
  • a width of each driving nose 64a of the rotatable roller 60a is larger than the mesh size 18a of the finished steel wire mesh 54a.
  • the overstretching of the hexagonal meshes 16a is intended to compensate for springing back of the high-strength steel wires 10a, 12a, 14a, which are much more elastic compared to non-high-strength steel.
  • Fig. 9 is schematically also in the Fig. 8 shown part of the manufacturing device 52a, wherein the manufacturing device 52a has an alternative rotatable roller 60'a.
  • the manufacturing device 52a has a stretching unit 134a.
  • the stretching unit 134a is intended to stretch a finished steel wire mesh 54a in directions parallel to the mesh size 18a.
  • the stretching unit 134a is intended to stretch the finished steel wire mesh 54a by at least 30%.
  • the stretching unit 134a is in the Fig. 9
  • the case shown as an example is integrated into the alternative rotatable roller 60'a.
  • the stretching unit 134a has stretching elements 112a, 114a, 116a.
  • the stretching elements 112a, 114a, 116a are designed as projections in the rotatable roller 60'a.
  • the stretching elements 112a, 114a, 116a are intended to engage in the hexagonal meshes 16a.
  • the stretching elements 112a, 114a, 116a are intended to engage the twisted areas 24a of the hexagonal meshes 16a and to pull the hexagonal meshes 16a apart in directions parallel to the mesh size 18a.
  • the individual hexagonal meshes 16a of the steel wire mesh 54a are temporarily overstretched.
  • the stretching unit 134a is downstream of the rotatable roller 60a or that the stretching unit 134a is arranged separately from the manufacturing device 52a comprising the rotatable roller 60a and the twisting units 56a, 58a, 104a.
  • the Fig. 10 shows a schematic flow diagram of a manufacturing process for braiding the steel wire mesh 54a with the hexagonal meshes 16a.
  • two steel wires 10a, 12a of a steel wire batch are clamped into the test device 76a and the first twisting test attempt and/or the second twisting test attempt is carried out. If the first twisting test attempt and/or the second twisting test attempt is passed, the steel wires 10a, 12a of the steel wire batch now tested are used to produce a steel wire mesh 54a according to the invention and/or fed to the manufacturing device 52a.
  • the one (tested) steel wire 10a is fed to the first twisting unit 56a.
  • the further (tested) steel wire 12a is fed to the first twisting unit 56a.
  • the two steel wires 10a, 12a are twisted together.
  • the steel wires 10a, 12a are overtwisted in the twisted areas 24a of the steel wire mesh 54a during the production of the steel wire mesh 54a.
  • the steel wires 10a, 12a in the twisted areas 24a of the steel wire mesh 54a are overtwisted by at least half a twist, preferably by at least a full twist. After overtightening, the overtwisted steel wires 10a, 12a automatically spring back by the overtwisted amount due to the high elasticity of high-strength steel, so that the geometry of the hexagonal meshes 16a according to the invention is established.
  • the resulting steel wire mesh 54a is attacked at the twisted areas 24a by the carrying lugs 64a of the rotatable roller 60a and is carried along with the movement of the rotatable roller 60a. Due to the carrying lugs 64a, in particular due to the engagement of the carrying lugs 64a in the hexagonal meshes 16a, the hexagonal meshes 16a are overstretched in the method step 118a in directions parallel to the mesh width 18a.
  • the over-stretched hexagonal meshes 16a After passing through the rotatable roller 60a, the over-stretched hexagonal meshes 16a automatically spring back by at least part of the stretch due to the high elasticity of high-strength steel, so that the geometry of the hexagonal meshes 16a according to the invention is established.
  • the hexagonal meshes 16a of the finished steel wire mesh 54a are additionally or alternatively stretched.
  • the hexagonal meshes 16a of the finished steel wire mesh 54a are stretched by the stretching elements 112a, 114a, 116a integrated into the rotatable roller 60'a or by stretching elements 112a, which are formed separately from the rotatable roller 60a. 114a, 116a stretched.
  • the stretched hexagonal meshes 16a automatically spring back by at least part of the stretch due to the high elasticity of high-strength steel, so that the geometry of the hexagonal meshes 16a according to the invention is established.
  • the Fig. 11 shows schematically an alternative steel wire mesh 54b according to the invention.
  • the steel wire mesh 54b has hexagonal meshes 16b.
  • the steel wire mesh 54b is formed from steel wires 10b, 12b, 14b.
  • the steel wires 10b, 12b, 14b are made of high-strength steel.
  • the steel wires 10b, 12b, 14b of the steel wire mesh 54b are alternately twisted with adjacent steel wires 10b, 12b, 14b of the steel wire mesh 54b to form the hexagonal meshes 16b.
  • the steel wires 10b, 12b, 14b twisted together form twisted areas 24b.
  • the twisted areas 24b of the alternative steel wire mesh 54b each include more than three consecutive twists 28b, 38b, 40b, 128b, 130a. Im in the Fig. 11 In the example shown, the twisted areas 24b of the alternative steel wire mesh 54b have five consecutive twists 28b, 38b, 40b, 128b, 130a.
  • the Fig. 12 shows schematically a section through a steel wire 10c of a further alternative steel wire mesh 54c according to the invention.
  • the steel wire 10c is made of a high-strength steel.
  • the high-strength steel of the steel wire 10c is made of a stainless steel grade.
  • the Fig. 13 shows schematically a section through a steel wire 10d of an additional alternative steel wire mesh 54d according to the invention.
  • the steel wire 10d includes a high-strength steel.
  • the steel wire 10d has a sheath 46d made of a stainless steel type.
  • the steel wire 10d has a core 132d made of a non-stainless steel type. Either both portions, jacket 46d and core 132d, or only the core 132d can be made of high-strength steel.

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  • Structural Engineering (AREA)
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  • Architecture (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
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  • Reinforcement Elements For Buildings (AREA)
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  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
EP22700921.4A 2021-01-14 2022-01-11 Stahldrahtgeflecht aus stahldrähten mit sechseckigen maschen, herstellungsvorrichtung und herstellungsverfahren Active EP4171847B1 (de)

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GB321068A (en) * 1928-11-12 1929-10-31 Arthur Pearson Apparatus for the manufacture of wire netting
BE865901A (nl) * 1978-04-12 1978-10-12 Bekaert Sa Nv Verbeterd zeskantvlechtwerk
RU2118922C1 (ru) * 1996-01-18 1998-09-20 Иванов Игорь Алексеевич Устройство для изготовления проволочной сетки
CH692921A5 (de) 1998-02-25 2002-12-13 Fatzer Ag Drahtgeflecht vorzugsweise als Steinschlagschutz oder für die Sicherung einer Erdoberflächenschicht.
IT1395570B1 (it) * 2009-09-10 2012-10-16 Maccaferri Spa Off Rete metallica di protezione con fili intrecciati
CH704871A2 (de) 2011-04-27 2012-10-31 Geobrugg Ag Auffangnetz vorzugsweise für eine Steinschlag- bzw. Lawinenschutzverbauung.
CN202367121U (zh) * 2011-12-16 2012-08-08 新疆鼎力矿山设备制造有限公司 矿山用钢丝支护网的编织装置
CN202767025U (zh) * 2011-12-22 2013-03-06 张绍华 一种低碳铝覆钢丝加筋固滨笼
CN202787185U (zh) * 2011-12-22 2013-03-13 张绍华 一种低碳铝覆钢丝绿滨垫
CN202767089U (zh) * 2011-12-22 2013-03-06 张绍华 一种低碳铝覆钢丝固滨笼
JP6923123B2 (ja) * 2017-02-09 2021-08-18 オフィシネ マッカフェリイ ソシエタ ペル アチオニ 強化ネットの製造機械および製造方法ならびに強化ネット
PL235814B1 (pl) 2018-06-15 2020-10-19 Ryszard Odziomek Druciana plecionka oraz sposób i urządzenie do wytwarzania drucianej plecionki
CN212688749U (zh) * 2020-07-06 2021-03-12 安平县安邦五金制品有限公司 一种钢绞六边形被动防护网

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MX2023008271A (es) 2024-02-14
EP4171847A1 (de) 2023-05-03
AU2022207151A1 (en) 2023-07-27
CN116783016B (zh) 2024-04-02
KR20230121886A (ko) 2023-08-21
JP2024505424A (ja) 2024-02-06
PL4171847T3 (pl) 2024-05-06
CN116783016A (zh) 2023-09-19
WO2022152697A1 (de) 2022-07-21
AU2022207151B2 (en) 2024-05-09
CA3205101A1 (en) 2022-07-21
CL2023001994A1 (es) 2023-12-29
DE102021100678A1 (de) 2022-07-14
US20240058858A1 (en) 2024-02-22

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