Kortrijk, Belgium
Kortrijk, Belgium

Bekaert is a world market and technology leader in steel wire transformation and coatings.N.V. Bekaert S.A. is an industrial company, which is one of the BEL20 companies in the index for the Euronext Brussels stock exchange. Wikipedia.


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A welding apparatus for a controlled welding of steel cord ends. The welding apparatus allows for a controlled welding path from welding period over post-weld period to complete cool-down. In the welding apparatus a direct current source is controlled over time using a programmable controller. By sensing the voltage over the clamps of the welding apparatus and using this as a further input to the programmable controller, a constant power dissipation between the clamps can be achieved in the post-weld period. An associated method for making the weld where during the post-welding period the electric power dissipated between the clamps is held constant. The welds obtained by this procedure have a favourable metallographic structure in that the heat affected zone has more than 50% of pearlite and/or bainite over the total area of that zone.


Patent
Bekaert | Date: 2017-01-25

A cable bolt for providing support and balance to a rock mass, comprising: a multi-strand cable having a plurality of steel wires being twisted together, said multi-strand cable having a first end portion for anchoring in a borehole of rock mass and a second end portion for being positioned adjacent to the opening of the borehole, a fixture secured to the second end portion of said multi-strand cable, wherein at least one of the plurality of steel wires is made from steel having as steel composition: a carbon content ranging from 0.20 weight percent to 0.95 weight percent, a silicon content ranging from 0.5 weight percent to 2.0 weight percent, a manganese content ranging from 0.40 weight percent to 1.0 weight percent, a chromium content ranging from 0.0 weight per cent to 1.0 weight percent, a sulphur and phosphor content being limited to 0.025 weight percent, the remainder being iron, and said steel has as metallurgical structure: a volume percentage of retained austenite ranging from 4 percent to 25 percent, the remainder being tempered primary martensite and untempered secondary martensite.


Patent
Bekaert | Date: 2015-03-04

A porous panel with a surface area of at least 0.5 m^(2 )has a first layer of metal fibers of an average equivalent diameter between 8 and 65 m. The cross-section of the metal fibers has two neighboring straight sides with an included angle of less than 90 and one or more irregularly shaped curved sides. The metal fibers are bonded to each other by metal bonds; where the metal of the metal fibers of the first layer is the bonding agent forming the metal bonds. The filter has a second layer of metal fibers. The average equivalent diameter of the metal fibers of the second layer is smaller than the average equivalent diameter of the metal fibers of the first layer. The first layer and the second layer are bonded to each other by metal bonds.


Patent
Bekaert | Date: 2015-03-04

The filter for gel shearing and particle filtration of molten polymer has a first layer of metal fibers of an average equivalent diameter between 8 and 65 m. The cross-section of the metal fibers has two neighboring straight sides with an included angle of less than 90 and one or more irregularly shaped curved sides. The metal fibers have an average length of at least 6 mm. The metal fibers are bonded to each other by metal bonds; where the metal of the metal fibers of the first layer is the bonding agent forming the metal bonds. The filter has a second layer of metal fibers. The average equivalent diameter of the metal fibers of the second layer is smaller than the average equivalent diameter of the metal fibers of the first layer.


Patent
Bekaert | Date: 2015-07-08

A high fatigue resistant nickel-titanium alloy wire, the wire having a transition temperature A_(F )from 15 C. to +10 C. after annealing at a temperature in the range of 700 C. to 900 C., the wire being characterized by a Full-Width at Half-Maximum (FWHM) of austenite nickel-titanium diffraction peak in the range of 0.6 2 to 0.7 2 in a X-ray diffraction pattern using a Cu Ka radiation source.


Patent
Bekaert | Date: 2015-05-08

A rope having a core for providing strength to the rope, where at least a metal or composite woven or warp knitted fabric having multiple substantially parallel elongated metal elements is provided around the core for protecting said core from impact and cutting, and where the multiple substantially parallel elongated elements are in the warp direction and held by yarns.


Patent
Bekaert | Date: 2017-02-01

Electrical heating cable comprising two or more strands of metal filaments twisted or cabled together. At least one of the strands comprises a first set of metal filaments and a second set of metal filaments, both for conducting electrical current and generating heat when the heating cable is in use. The metal filaments of the first set of metal filaments comprise a steel layer. The metal filaments of the second set comprise a steel layer. The metal filaments of the second set have an annealed microstructure.


Saw cords used for sawing natural or manmade stony materials are made of saw beads threaded on a steel cord (52,522,522), wherein the saw beads are separated by polymer spacers. The saw beads comprise a metal sleeve (204, 304) of which the outer surface is covered with an abrasive layer. The inventors observed that saw cords returning from the field frequently failed due to saw beads that begin to rotate during use thereby eroding away the polymer between the steel cord and the inner of the saw bead. Eventually, the polymer is worn away and the outer steel filaments of the steel cord are ground away due to the interaction with saw dust and water. The inventors provide the inner surface of the sleeve with two sets (214) of parallel grooves in a first (206, 306) and second (208,308) axial part of the sleeve. The two sets of parallel grooves differ in at least one of the groove angle (,), the groove offset () or the groove spacing (1l, D2), thereby preventing axial movement of the sleeve and blocking the rotation of the saw bead.


Patent
Bekaert | Date: 2016-06-15

An aquaculture system (10) comprising:a metallic aquaculture net (12) in the form of an open basket having an opening, the net (12) including side walls (13) and a bottom (14), said side walls (13) arranged to form an upper periphery of the opening of said aquaculture net (12) and a lower periphery connected to the bottom (14) of said aquaculture net (12),flotation means (16) associated with the upper periphery of said aquaculture net (12),shape-stabilizing means (18) connected to the lower periphery of said aquaculture net (12) such that the bottom (14) of the aquaculture net (12) is stretched and the shape of the aquaculture net (12) is stabilized,suspension means (19) connecting the flotation means (16) with the shape-stabilizing means (18), whereinthe suspension means (19) is arranged for suspending the shape-stabilizing means (18) from the flotation means (16) such that the weight of the bottom (14) of the aquaculture net (12) is at least partially transmitted to the flotation means (16).


Patent
Bekaert | Date: 2016-08-17

A mesh net, said mesh being woven from single steel wires with a shape deformation in a bent spiral-shape, pairs of said single bent spiral-shaped wires being engaged at engagement points along their length, characterized in that at least parts of bent wires disposed between two adjacent engagement points along the single bent spiral-shaped wires have an additional shape deformation on the bent wires.

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