A method for producing a reinforcing bar by pultrusion, the method comprising the steps of: a) providing a source of fibres; b) assembling the fibres into a bundle; c) impregnating the bundle with a thermosetting resin; d) eliminating excess resin from the bundle; e) compressing the bundle in a centripetal manner; f) exposing the bundle to a radiant energy source; g) spraying particles onto a surface of the bundle; and h) exposing the bundle to radiation in order to initiate, on the surface of same, the polymerisation of the resin. The present invention also concerns a system provided with corresponding devices in order to be able to implement the method. The present invention also concerns a reinforcing bar obtained with the described method and/or system.
B29C 70/52 - Pultrusion, i.e. forming and compressing by continuously pulling through a die
B29C 35/02 - Heating or curing, e.g. crosslinking or vulcanising
B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
B29C 35/10 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation for articles of indefinite length
B29C 70/02 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements and fillers incorporated in matrix material, forming one or more layers, with or without non-reinforced or non-filled layers
B29C 70/64 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only the filler influencing the surface characteristics of the material, e.g. by concentrating near the surface or by incorporation into the surface by force
E04C 5/07 - Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
2.
Method and system for producing a reinforcing bar, and resulting reinforcing bar
A method for producing a reinforcing bar by pultrusion, the method comprising the steps of: a) providing a source of fibres; b) assembling the fibres into a bundle; c) impregnating the bundle with a thermosetting resin; d) eliminating excess resin from the bundle; e) compressing the bundle in a centripetal manner; f) exposing the bundle to a radiant energy source; g) spraying particles onto a surface of the bundle; and h) exposing the bundle to radiation in order to initiate, on the surface of same, the polymerisation of the resin. The present invention also concerns a system provided with corresponding devices in order to be able to implement the method. The present invention also concerns a reinforcing bar obtained with the described method and/or system.
B29C 70/52 - Pultrusion, i.e. forming and compressing by continuously pulling through a die
B29C 35/02 - Heating or curing, e.g. crosslinking or vulcanising
B29C 35/10 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation for articles of indefinite length
B29C 70/02 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements and fillers incorporated in matrix material, forming one or more layers, with or without non-reinforced or non-filled layers
B29C 70/64 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only the filler influencing the surface characteristics of the material, e.g. by concentrating near the surface or by incorporation into the surface by force
E04C 5/07 - Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
3.
METHOD AND SYSTEM FOR PRODUCING A REINFORCING BAR, AND RESULTING REINFORCING BAR
A method for producing a reinforcing bar by pultrusion, the method comprising the steps of: a) providing a source of fibres; b) assembling the fibres into a bundle; c) impregnating the bundle with a thermosetting resin; d) eliminating excess resin from the bundle; e) compressing the bundle in a centripetal manner; f) exposing the bundle to a radiant energy source; g) spraying particles onto a surface of the bundle; and h) exposing the bundle to radiation in order to initiate, on the surface of same, the polymerisation of the resin. The present invention also concerns a system provided with corresponding devices in order to be able to implement the method. The present invention also concerns a reinforcing bar obtained with the described method and/or system.
The invention relates to a bent rod having improved mechanical strength at the bending point thereof, characterized in that it is made from a bundle of twisted fibers that are secured together using a binder matrix preferably consisting of a thermosetting resin. The invention also relates to a method and device for producing said rod.
E04C 5/07 - Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
B21D 7/022 - Bending rods, profiles, or tubes over a stationary forming memberBending rods, profiles, or tubes by use of a swinging forming member or abutment over a stationary forming member only
D02G 3/12 - Threads containing metallic filaments or strips
The invention relates to a bent rod having improved mechanical strength at the bending point thereof, characterized in that it is made from a bundle of twisted fibers that are secured together using a binder matrix preferably consisting of a thermosetting resin. The invention also relates to a method and device for producing said rod.
B29C 53/56 - Winding and joining, e.g. winding spirally
B29C 70/04 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
E04C 5/07 - Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
7.
CURVED REINFORCING ROD HAVING AN IMPROVED MECHANICAL STRENGTH AT THE LOCATION OF THE CURVATURE THEREOF AND METHOD FOR PRODUCING SAME
The invention relates to a curved reinforcing rod having an improved mechanical strength at the location of the curvature thereof, characterized in that it is made from a bundle of fibres firmly attached together using a binder polymer and in that it has rectilinear parts that each have one and the same essentially circular cross section and a curved part that is found between the rectilinear parts, this curved part being and having an essentially rectangular or ellipsoidal cross section. The fact that a flattening is produced at the curvature of each rod is of great advantage since this reduces the difference in values between the radii of internal and external curvature at the curvature, which reinforces the mechanical strength of the final product. The invention also relates to a method for producing this rod.
B28B 23/02 - Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material wherein the elements are reinforcing members
E04C 5/20 - Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of other material than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires
Reinforcing materials of fibreglass for building; Reinforcing materials of carbon for building; Reinforcing materials, not of metal, for building; Composite-manufacture reinforcing bars for reinforcement of concrete structures.
A method for producing a reinforcing bar by pultrusion, the method comprising the steps of: a) providing a source of fibres; b) assembling the fibres into a bundle; c) impregnating the bundle with a thermosetting resin; d) eliminating excess resin from the bundle; e) compressing the bundle in a centripetal manner; f) exposing the bundle to a radiant energy source; g) spraying particles onto a surface of the bundle; and h) exposing the bundle to radiation in order to initiate, on the surface of same, the polymerisation of the resin. The present invention also concerns a system provided with corresponding devices in order to be able to implement the method. The present invention also concerns a reinforcing bar obtained with the described method and/or system.
The invention relates to a bent rod having improved mechanical strength at the bending point thereof, characterized in that it is made from a bundle of twisted fibers that are secured together using a binder matrix preferably consisting of a thermosetting resin. The invention also relates to a method and device for producing said rod.
B29C 53/56 - Winding and joining, e.g. winding spirally
B29C 70/04 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
E04C 5/07 - Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
