FR2579926A1 - Method for producing a reinforced profile made from extruded thermoplastic material, machine for the implementation of this method and resulting product - Google Patents
Method for producing a reinforced profile made from extruded thermoplastic material, machine for the implementation of this method and resulting product Download PDFInfo
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- FR2579926A1 FR2579926A1 FR8505061A FR8505061A FR2579926A1 FR 2579926 A1 FR2579926 A1 FR 2579926A1 FR 8505061 A FR8505061 A FR 8505061A FR 8505061 A FR8505061 A FR 8505061A FR 2579926 A1 FR2579926 A1 FR 2579926A1
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- thermoplastic material
- reinforcing element
- punch
- extrusion
- profile
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/06—Rod-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/151—Coating hollow articles
- B29C48/152—Coating hollow articles the inner surfaces thereof
- B29C48/153—Coating both inner and outer surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/156—Coating two or more articles simultaneously
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
La présente invention concerne un procédé de fabrication d'un profilé armé en matière thermoplastique extrudée, une machine pour la mise en oeuvre de ce procédé et les profilés résultants. The present invention relates to a process for manufacturing a reinforced profile in extruded thermoplastic material, a machine for implementing this process and the resulting profiles.
A l'heure actuelle, on utilise de plus en plus de profilés en matière thermoplastique comme produits de remplacement du bois ou du métal dans la fabrication, par exemple, des huisseries, des fenêtres, des fermetures, des portes de placard, des portes de garage ou des clôtures. Ces profilés offrent, en effet, l'avantage d'être moins coûteux que leurs homologues en aluminium, d'être imputrescibles et résistants à la corrosion et de pouvoir être teints dans la masse. Today, more and more thermoplastic profiles are used as substitutes for wood or metal in the manufacture, for example, doorframes, windows, closings, cupboard doors, garage or fencing. These profiles offer, in fact, the advantage of being less expensive than their aluminum counterparts, of being rot-proof and resistant to corrosion and of being able to be dyed in the mass.
Leur usage serait encore plus répandu s'ils n'avaient pas l'inconvénient de présenter un module d'élasticité insuffisant. En effet, il est nécessaire de les renforcer soit en augmentant leur épaisseur, ce qui correspond à une consommation supplémentaire de matière, soit en les munissant d'un renfort intérieur, en métal ou en bois, ce qui augmente leur poids et grève leur prix de revient. Their use would be even more widespread if they did not have the disadvantage of having an insufficient modulus of elasticity. Indeed, it is necessary to strengthen them either by increasing their thickness, which corresponds to an additional consumption of material, or by providing them with an internal reinforcement, in metal or wood, which increases their weight and strikes their price. returns.
On a, certes, proposé d'augmenter le module d'élasticité des profilés en matière plastique, en y mêlant des fibres de verre ou de fibres de mica, obtenant ainsi un produit composite. Les produits résultants ont l'inconvénient d'être coûteux et impossibles à mettre en oeuvre par les procédés classiques d'extrusion. It has certainly been proposed to increase the modulus of elasticity of the plastic profiles, by mixing therein glass fibers or mica fibers, thus obtaining a composite product. The resulting products have the disadvantage of being expensive and impossible to use by conventional extrusion methods.
La présente invention a pour but d'apporter de nouveaux profilés en matière thermoplastique extrudée dont le module d'élasticité soit 2 à 5 fois plus important, et même davantage, que le module de la matière plastique constitutive. The present invention aims to provide new profiles in extruded thermoplastic material whose elasticity modulus is 2 to 5 times greater, and even more, than the modulus of the constituent plastic.
Ce but est atteint en ce sens que le procédé selon l'invention consiste à inclure dans la matière thermoplastique, au cours de l'extrusion, au moins un élément renforçateur adapté à s'ancrer dans ladite matière. This object is achieved in the sense that the method according to the invention consists in including in the thermoplastic material, during extrusion, at least one reinforcing element suitable for anchoring in said material.
Cet élément renforçateur peut être un fil en métal ou un fil constitué de fibres synthétiques tels que fibres de verre, fibres de carbone, fibres aramides, etc ... ou un feuillard en métal, tel que l'acier ou l'aluminium, l'important étant que le matériau renforçateur soit thermorésistant, qu'il soit à fort module d'élasticité et qu'il puisse être rendu solidaire, sans effet de glissement, de la matière plastique du profilé. This reinforcing element can be a metal wire or a wire made of synthetic fibers such as glass fibers, carbon fibers, aramid fibers, etc. or a metal strip, such as steel or aluminum, l 'important being that the reinforcing material is heat-resistant, that it has a high modulus of elasticity and that it can be made integral, without sliding effect, of the plastic of the profile.
Il est bien entendu que l'on a déjà inclus un fil métallique dans un produit en matière thermoplastique extrudée pour la fabrication de fils électriques gainés. On notera cependant que, dans ce cas, le but poursuivi est d'isoler électriquement le fil métallique et non pas de renforcer, à l'aide du fil métallique, la gaine de matière thermoplastique. Au surplus, on ne saurait considérer que la gaine isolante qui entoure un fil électrique constitue ce qu'il est convenu d'appeler un profilé. Par ailleurs, dans un fil électrique gainé, le fil n'est pas ancré dans la matière isolante mais simplement entouré par cette dernière, ce que démontre la facilité avec laquelle un fil peut être dénudé. It is understood that a metallic wire has already been included in a product of extruded thermoplastic material for the manufacture of sheathed electrical wires. Note, however, that in this case, the aim is to electrically isolate the metal wire and not to reinforce, using the metal wire, the sheath of thermoplastic material. In addition, it cannot be considered that the insulating sheath which surrounds an electric wire constitutes what is commonly known as a profile. Furthermore, in a sheathed electrical wire, the wire is not anchored in the insulating material but simply surrounded by the latter, as demonstrated by the ease with which a wire can be stripped.
On ne saurait davantage considérer que le procédé selon l'invention est une pure transposition de la technique appliquée pour la réalisation de béton armé car, dans le cas de la fabrication d'un profilé extrudé, la formation du profilé se fait en continu et la mise en place de l'élément renforçateur doit, elle aussi, être faite en continu. Cela n'est évidemment pas le cas dans la construction d'une paroi en béton armé où les éléments renforçateurs, c'est-à-dire les fers à béton, sont disposés dans un coffrage avant la coulée du béton. Nor can it be considered that the method according to the invention is a pure transposition of the technique applied for the production of reinforced concrete because, in the case of the manufacture of an extruded profile, the formation of the profile is carried out continuously and the Placement of the reinforcing element must also be done continuously. This is obviously not the case in the construction of a reinforced concrete wall where the reinforcing elements, that is to say the concrete irons, are placed in a formwork before the concrete is poured.
Comme on l'a dit plus haut, l'élément renforçateur doit pouvoir s'ancrer dans la matière thermoplastique. A cette fin, il peut présenter des aspérités superficielles, par exemple, être grainé ou cannelé. As mentioned above, the reinforcing element must be able to anchor in the thermoplastic material. To this end, it may have surface roughness, for example, be grained or grooved.
Si l'élément renforçateur offre une section suffisante, il peut présenter des perforations le traversant de part en part et au travers desquelles s'établiront des ponts de matière thermoplastique assurant un ancrage satisfaisant. If the reinforcing element has a sufficient cross-section, it may have perforations passing right through it and through which bridges of thermoplastic material will be established ensuring satisfactory anchoring.
Dans un autre mode de mise en oeuvre de l'invention, la surface de l'élément renforçateur est lisse mais elle est enduite, préalablement à sa venue en contact avec la matière thermoplastique, d'un liant propre à assurer son ancrage dans cette dernière. In another embodiment of the invention, the surface of the reinforcing element is smooth but it is coated, before coming into contact with the thermoplastic material, with a binder capable of ensuring its anchoring in the latter .
En variante, le liant peut être fourni par la matière de l'élément renforçateur lui-même si celui-ci fond superficiellement lors de l'extrusion et que cette matière fondue soit capable de fusionner avec celle du profilé, réalisant ainsi un autosoudage. Un tel autosoudage est possible, par exemple, entre un fil formé de fibres polyester et un profilé en PVC. As a variant, the binder can be provided by the material of the reinforcing element itself if the latter melts superficially during extrusion and if this molten material is capable of fusing with that of the profile, thus achieving self-welding. Such self-welding is possible, for example, between a wire formed of polyester fibers and a PVC profile.
Pour la mise en oeuvre du procédé selon l'invention, il a fallu concevoir une machine spécialement adaptée à cet effet. For the implementation of the method according to the invention, it was necessary to design a machine specially adapted for this purpose.
Cette machine comprend, d'une manière connue en soi, une extrudeuse, une tête de filière, une filière proprement dite délimitant entre elle-même et un poinçon de forme appropriée une cavité d'extrusion dont la section correspond à celle du profilé attendu et des moyens d'entraînement et de chauffage adaptés à faire fluer la matière thermoplastique depuis l'extrudeuse, via la tête de filière, dans la cavité d'extrusion. This machine comprises, in a manner known per se, an extruder, a die head, a die proper delimiting between itself and a punch of appropriate shape an extrusion cavity whose cross section corresponds to that of the expected profile and drive and heating means adapted to make the thermoplastic material flow from the extruder, via the die head, into the extrusion cavity.
Selon l'invention, la tête de filière présente au moins un canal d'admission pour un élément renforçateur, ce canal d'admission débouchant dans un guide qui s'étend selon une direction parallèle à l'axe longitudinal de la cavité d'extrusion et qui s'ouvre dans cette cavité. According to the invention, the die head has at least one inlet channel for a reinforcing element, this inlet channel opening into a guide which extends in a direction parallel to the longitudinal axis of the extrusion cavity and which opens in this cavity.
On comprend que la machine selon l'invention diffère des extrudeuses utilisées pour le gainage de fils électriques, dites à tête d'équerre, puisque ces extrudeuses à tête d'équerre ne comportent pas de poinçon et que le fil nu est alimenté directement dans la tête d'extrudeuse selon une direction perpendiculaire à la vis d'extrusion et co-axiale à la filière. It will be understood that the machine according to the invention differs from the extruders used for the sheathing of electric wires, called angle heads, since these angle head extruders do not include a punch and the bare wire is fed directly into the extruder head in a direction perpendicular to the extrusion screw and co-axial with the die.
Plus précisemment, la machine selon l'invention comprend, entre la tête de filière et la filière proprement dite, un porte-poinçon adapté à supporter le poinçon dans l'axe de la tête d'extrusion et le guide est maintenu en place, d'une part, par un support de guide interposé entre la tête de filière et le porte-poinçon et, d'autre part, par coinçage entre le poinçon et la filière proprement dite. More precisely, the machine according to the invention comprises, between the die head and the die itself, a punch holder adapted to support the punch in the axis of the extrusion head and the guide is held in place, d 'On the one hand, by a guide support interposed between the die head and the punch holder and, on the other hand, by wedging between the punch and the die itself.
A cet effet, il est prévu, sur la périphérie du poinçon, un nombre d'évidements correspond au nombre de guides et où le guide peut venir s'encastrer partiellement. For this purpose, there is provided, on the periphery of the punch, a number of recesses corresponds to the number of guides and where the guide can come to be partially embedded.
Outre le procédé de fabrication du profilé armé et la machine spécialement conçue pour la mise en oeuvre de ce procédé, l'invention vise également les profilés obtenus. In addition to the process for manufacturing the reinforced profile and the machine specially designed for the implementation of this process, the invention also relates to the profiles obtained.
L'invention est décrite ci-après en détail par référence aux dessins annexés dans lesquels
- la figure 1 est une vue en coupe de la filière d'extrusion, coupe qui est prise selon la ligne I-I de la figure 2,
- la figure 2 est une vue de face de la filière,
- la figure 3 est une vue de détail en perspective montrant le positionnement des guides autour du poinçon,
- la figure 4 représente en perspective le profilé obtenu en utilisant la machine des figures 1 à 3,
- les figures 5, 6 et 8 montrent trois autres formes d'exécution de profilés selon l'invention, et.The invention is described below in detail with reference to the accompanying drawings in which
FIG. 1 is a sectional view of the extrusion die, a section which is taken along line II of FIG. 2,
FIG. 2 is a front view of the sector,
FIG. 3 is a detailed perspective view showing the positioning of the guides around the punch,
FIG. 4 shows in perspective the profile obtained using the machine of FIGS. 1 to 3,
- Figures 5, 6 and 8 show three other embodiments of profiles according to the invention, and.
- les figures 7a à 7e représentent différentes formes d'exécution d'éléments renforçateurs. - Figures 7a to 7e show different embodiments of reinforcing elements.
Si l'on se réfère aux figures 1 et 2, on voit une extrudeuse 1 sur laquelle sont montés, dans l'ordre, une tête de filière 2, un support de guides 3, une porte poinçon 4 et une filière proprement dite 5. Le porte-poinçon 4 maintient un poinçon 6 dans l'axe longitudinal x-x' de la tête de filière 2. Comme on le voit, il est prévu, dans la tête de filière 2, des canaux 7 qui débouchent chacun dans un guide 8. Les guides 8 sont solidaires des supports de guide 3 au-delà desquels ils se projettent. Comme on le voit mieux à la figure 3, il est prévu, sur la périphérie du poinçon 6, des évidements 9 adaptés à servir de berceaux aux guides 8. Les guides 8 se trouvent donc coincés entre la filière proprement dite 5 et les berceaux 9 du poinçon 6. Le poinçon 6 et la filière proprement dite 5 délimitent entre eux une cavité d'extrusion 10.Les canaux 7 et les guides 8 servent à acheminer un élément renforçateur, dans le cas présent un fil métallique non représenté, jusque dans la cavité d'extrusion 10. De cette manière, les fils métalliques renforçateurs pénètrent en continu dans la cavité d'extrusion en même temps que la matière thermoplastique provenant de l'extrudeuse 1. Les fils renforçateurs se trouvent ainsi inclus dans la matière constitutive du profilé, aux endroits déterminés par la position des guides 8 et, grâce à leurs propriétés superficielles (aspérité ou enduction d'un liant ou autosoudage), et sous une pression suffisante, ils s'ancrent à demeure dans cette matière plastique. If we refer to FIGS. 1 and 2, we see an extruder 1 on which are mounted, in order, a die head 2, a guide support 3, a punch holder 4 and a die proper 5. The punch holder 4 maintains a punch 6 in the longitudinal axis xx 'of the die head 2. As can be seen, channels 7 are provided in the die head 2 which each open into a guide 8. The guides 8 are integral with the guide supports 3 beyond which they project. As best seen in Figure 3, there are provided, on the periphery of the punch 6, recesses 9 adapted to serve as cradles for the guides 8. The guides 8 are therefore trapped between the die 5 and the cradles 9 of the punch 6. The punch 6 and the die proper 5 delimit between them an extrusion cavity 10. The channels 7 and the guides 8 are used to convey a reinforcing element, in this case a metal wire not shown, as far as the extrusion cavity 10. In this way, the reinforcing metal wires continuously penetrate the extrusion cavity at the same time as the thermoplastic material coming from the extruder 1. The reinforcing wires are thus included in the material constituting the profile. , at the locations determined by the position of the guides 8 and, thanks to their surface properties (roughness or coating of a binder or self-welding), and under sufficient pressure, they anchor themselves permanently in this plas material tick.
Le profilé obtenu est représenté à la figure 4. I1 s'agit d'un profilé creux 11 en matière thermoplastique dans chacun des angles duquel est noyé un fil métallique 12. The profile obtained is shown in FIG. 4. It is a hollow profile 11 made of thermoplastic material in each of the angles of which a metal wire 12 is embedded.
On a constaté que le procédé selon l'invention permet de multiplier par 2,5 le module d'élasticité d'un profilé de ce type dont les dimensions sont de 50 mm par 20 mm avec une épaisseur de paroi de 1 mm. It has been found that the method according to the invention makes it possible to multiply by 2.5 the elastic modulus of a profile of this type whose dimensions are 50 mm by 20 mm with a wall thickness of 1 mm.
En modifiant convenablement la position des guides 10 et la forme du poinçon 6, il est bien entendu possible d'obtenir des profilés ayant une #autre configuration que celui représenté à la figure 4. Ainsi, il est possible d'obtenir des profilés pleins, tel que celui représenté à la figure 5 où la référence 12' désigne des fils renforçateurs. By suitably modifying the position of the guides 10 and the shape of the punch 6, it is of course possible to obtain profiles having a #other configuration than that shown in FIG. 4. Thus, it is possible to obtain solid profiles, such as that shown in Figure 5 where the reference 12 'denotes reinforcing son.
Dans le cas d'une telle structure pleine, le procédé selon l'invention permet de multiplier par 5 le module d'élasticité.In the case of such a solid structure, the method according to the invention makes it possible to multiply the elastic modulus by 5.
Il est également possible de fabriquer des profilés ouverts tel que celui représenté à la figure 6. Dans le cas de ce profilé, l'élément renforçateur n'est pas constitué par un fil mais par un feuillard métallique 13 présentant des perforations 16 qui permettent à la matière plastique de fluer au travers du feuillard 13 et donc d'établir des ponts 14 qui immobilisent le feuillard en place. It is also possible to manufacture open sections such as that shown in FIG. 6. In the case of this section, the reinforcing element is not constituted by a wire but by a metal strip 13 having perforations 16 which allow the plastic material to flow through the strip 13 and therefore to establish bridges 14 which immobilize the strip in place.
C'est également un feuillard métallique 13, refermé sur lui-même en 19, qui renforme le profilé tubulaire 11 de la figure 8. Une poutre pourrait être réalisée de la même façon. It is also a metal strip 13, closed on itself in 19, which reshapes the tubular section 11 of FIG. 8. A beam could be produced in the same way.
Les figures 7a à 7e représentent différentes formes d'exécution possibles pour l'élément renforçateur. Ainsi, l'élément renforçateur peut être un fil présentant des saillies 15 (figures 7a), des bourrelets 15' (figure 7b), une gorge hélicoidale 15" (figure 7c), ou tout autre type d'aspérités convenant à son ancrage dans la matière thermoplastique. I1 peut également s'agir d'un feuillard 13 présentant des perforations 16 (figure 7d) dont l'utilisation est illustrée à la figure 6 ou d'un feuillard cannelé ou présentant des aspérités analogues à celles d'une rape à fromage. On peut aussi utiliser un fil lisse 12" (figure 7e) enduit d'un liant 18 préalablement à sa venue en contact avec la matière thermoplastique, ou encore un fil lisse capable de réaliser un autosoudage. Figures 7a to 7e show different possible embodiments for the reinforcing element. Thus, the reinforcing element can be a wire having projections 15 (FIGS. 7a), beads 15 ′ (FIG. 7b), a helical groove 15 "(FIG. 7c), or any other type of roughness suitable for its anchoring in thermoplastic material I1 can also be a strip 13 having perforations 16 (FIG. 7d), the use of which is illustrated in FIG. 6 or a fluted strip or having rough edges similar to those of a rape You can also use a 12 "smooth wire (Figure 7e) coated with a binder 18 before it comes into contact with the thermoplastic material, or a smooth wire capable of achieving self-welding.
Comme il ressort - de- la description qui précède, le procédé selon l'invention permet d'augmenter considérablement le module d'élasticité des profilés en matière thermoplastique extrudée. Par suite, il est possible de réaliser des profilés ayant la rigidité voulue, sans avoir recours à des renforts intérieurs, ce qui permet de réduire considérablement le poids des articles finis, ni à l'augmentation de l'épaisseur de la paroi des profilés, d'où une économie de matière et, par suite, un abaissement du prix de revient. As emerges from the above description, the method according to the invention makes it possible to considerably increase the elastic modulus of the profiles of extruded thermoplastic material. As a result, it is possible to produce profiles having the desired rigidity, without resorting to internal reinforcements, which makes it possible to considerably reduce the weight of the finished articles, or to increase the thickness of the wall of the profiles, hence saving material and, as a result, lowering the cost price.
Les profilés fabriqués selon l'invention peuvent être utilisés, non seulement dans la fabrication des clôtures et des huisseries, mais aussi dans celle des fenêtres, des portes intérieures et extérieures, des rideaux pour les armoires de bureau et de toutes structures portantes. ils peuvent également servir à la fabrication de charpente en venant se substituer aux poutres en bois classiques. The profiles produced according to the invention can be used not only in the manufacture of fences and window frames, but also in that of windows, interior and exterior doors, curtains for office cabinets and all supporting structures. they can also be used for the manufacture of frameworks by replacing conventional wooden beams.
Claims (11)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8505061A FR2579926A1 (en) | 1985-04-03 | 1985-04-03 | Method for producing a reinforced profile made from extruded thermoplastic material, machine for the implementation of this method and resulting product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8505061A FR2579926A1 (en) | 1985-04-03 | 1985-04-03 | Method for producing a reinforced profile made from extruded thermoplastic material, machine for the implementation of this method and resulting product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2579926A1 true FR2579926A1 (en) | 1986-10-10 |
| FR2579926B1 FR2579926B1 (en) | 1987-12-11 |
Family
ID=9317905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8505061A Granted FR2579926A1 (en) | 1985-04-03 | 1985-04-03 | Method for producing a reinforced profile made from extruded thermoplastic material, machine for the implementation of this method and resulting product |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2579926A1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996015894A1 (en) * | 1994-11-17 | 1996-05-30 | Polva Pipelife B.V. | Method for making a plastic pipe, extrusion die and pipe |
| EP0720904A3 (en) * | 1994-12-07 | 1996-09-18 | Stefan Kakuk | Extrusion installation for producing reinforced building elements and reinforcable elements |
| WO1997006942A1 (en) * | 1995-08-17 | 1997-02-27 | Meeth Ernst Josef | Process for producing profiled materials, in particular for door and window production |
| EP0820848A1 (en) * | 1996-07-26 | 1998-01-28 | General Electric Company | Fiber reinforced thermoplastic extrusion |
| GB2398306A (en) * | 2003-02-13 | 2004-08-18 | Hl Plastics Ltd | Extruded reinforced structural member |
| EP1529619A1 (en) * | 2003-11-06 | 2005-05-11 | Cesare Frabbi | Extruded tubular profile made of a material such as fiberglass-reinforced plastics, and associated extrusion machine for making the profile |
| ITBO20080610A1 (en) * | 2008-10-07 | 2010-04-08 | B Tec S R L | DEVICE AND METHOD FOR THE REALIZATION OF A REINFORCED PROFILE AND PROFILE SO OBTAINED |
| FR2955523A1 (en) * | 2010-01-27 | 2011-07-29 | Alphacan Sa | EXTRUSION TOOLING FOR MANUFACTURING PLASTIC PROFILES WITH REINFORCEMENT ELEMENTS, METHOD OF IMPLEMENTATION AND PROFILES OBTAINED |
| GB2492158A (en) * | 2011-06-23 | 2012-12-26 | Epwin Group Ltd | Reinforced extruded plastic window or door frame component |
| GB2538781A (en) * | 2015-05-28 | 2016-11-30 | Kanwaljit Gill Singh | A beam |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1508630A (en) * | 1966-01-20 | 1968-01-05 | Process for the production of strips, profiles and hollow bodies comprising a core of metal or plastic and coated with plastic | |
| FR1586305A (en) * | 1968-10-10 | 1970-02-13 | ||
| DE2249484A1 (en) * | 1972-10-10 | 1974-05-02 | Sued West Chemie Gmbh | Extruder for sheathing cores with polyolefins - using intermittent ram and tapered zone in the nozzle |
| US3997285A (en) * | 1974-02-20 | 1976-12-14 | Hachiro Miyazaki | Apparatus for molding an extruded product containing a reinforcing material |
| DE3113810A1 (en) * | 1981-04-06 | 1982-10-21 | Gebrüder Kömmerling Kunststoffwerke GmbH, 6780 Pirmasens | Plastic profile bar |
-
1985
- 1985-04-03 FR FR8505061A patent/FR2579926A1/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1508630A (en) * | 1966-01-20 | 1968-01-05 | Process for the production of strips, profiles and hollow bodies comprising a core of metal or plastic and coated with plastic | |
| FR1586305A (en) * | 1968-10-10 | 1970-02-13 | ||
| DE2249484A1 (en) * | 1972-10-10 | 1974-05-02 | Sued West Chemie Gmbh | Extruder for sheathing cores with polyolefins - using intermittent ram and tapered zone in the nozzle |
| US3997285A (en) * | 1974-02-20 | 1976-12-14 | Hachiro Miyazaki | Apparatus for molding an extruded product containing a reinforcing material |
| DE3113810A1 (en) * | 1981-04-06 | 1982-10-21 | Gebrüder Kömmerling Kunststoffwerke GmbH, 6780 Pirmasens | Plastic profile bar |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996015894A1 (en) * | 1994-11-17 | 1996-05-30 | Polva Pipelife B.V. | Method for making a plastic pipe, extrusion die and pipe |
| BE1008956A3 (en) * | 1994-11-17 | 1996-10-01 | Solvay | Method of manufacturing a pipe based plastic industry and pipe extrusion. |
| EP0720904A3 (en) * | 1994-12-07 | 1996-09-18 | Stefan Kakuk | Extrusion installation for producing reinforced building elements and reinforcable elements |
| WO1997006942A1 (en) * | 1995-08-17 | 1997-02-27 | Meeth Ernst Josef | Process for producing profiled materials, in particular for door and window production |
| US6237208B1 (en) | 1995-08-17 | 2001-05-29 | Ernst-Josef Meeth | Process for producing profiled materials, in particular for door and window production |
| EP0820848A1 (en) * | 1996-07-26 | 1998-01-28 | General Electric Company | Fiber reinforced thermoplastic extrusion |
| GB2398306A (en) * | 2003-02-13 | 2004-08-18 | Hl Plastics Ltd | Extruded reinforced structural member |
| EP1529619A1 (en) * | 2003-11-06 | 2005-05-11 | Cesare Frabbi | Extruded tubular profile made of a material such as fiberglass-reinforced plastics, and associated extrusion machine for making the profile |
| ITBO20080610A1 (en) * | 2008-10-07 | 2010-04-08 | B Tec S R L | DEVICE AND METHOD FOR THE REALIZATION OF A REINFORCED PROFILE AND PROFILE SO OBTAINED |
| FR2955523A1 (en) * | 2010-01-27 | 2011-07-29 | Alphacan Sa | EXTRUSION TOOLING FOR MANUFACTURING PLASTIC PROFILES WITH REINFORCEMENT ELEMENTS, METHOD OF IMPLEMENTATION AND PROFILES OBTAINED |
| WO2011092409A1 (en) * | 2010-01-27 | 2011-08-04 | Alphacan | Extrusion equipment for manufacturing plastic profile members, implementation method, and resulting profile members |
| EP2528723B1 (en) | 2010-01-27 | 2015-03-04 | Alphacan | Extrusion equipment for manufacturing plastic profile members and implementation method |
| GB2492158A (en) * | 2011-06-23 | 2012-12-26 | Epwin Group Ltd | Reinforced extruded plastic window or door frame component |
| GB2538781A (en) * | 2015-05-28 | 2016-11-30 | Kanwaljit Gill Singh | A beam |
| GB2538781B (en) * | 2015-05-28 | 2021-03-17 | Singh Gill Kanwaljit | A beam |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2579926B1 (en) | 1987-12-11 |
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| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |