WO2002096624A1 - Electric welding system - Google Patents

Electric welding system Download PDF

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Publication number
WO2002096624A1
WO2002096624A1 PCT/ES2001/000221 ES0100221W WO02096624A1 WO 2002096624 A1 WO2002096624 A1 WO 2002096624A1 ES 0100221 W ES0100221 W ES 0100221W WO 02096624 A1 WO02096624 A1 WO 02096624A1
Authority
WO
WIPO (PCT)
Prior art keywords
glue
coating
electric
welding system
hot melt
Prior art date
Application number
PCT/ES2001/000221
Other languages
Spanish (es)
French (fr)
Inventor
Salvador MINGUIJÓN PÉREZ
Original Assignee
Insonorizantes Pelzer, S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Insonorizantes Pelzer, S.A. filed Critical Insonorizantes Pelzer, S.A.
Priority to PCT/ES2001/000221 priority Critical patent/WO2002096624A1/en
Publication of WO2002096624A1 publication Critical patent/WO2002096624A1/en

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Classifications

    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B29C65/348—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic with a polymer coating
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/3444—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint being a ribbon, band or strip
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/3464—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint characterised by the cross-section of said heated elements which remain in the joint or by the cross-section of their coating, e.g. being triangular

Definitions

  • the following invention refers to an electric welding system, the electric welding system being based on a welding element defined by an electric conductive body provided with a glue covering hot melt or heat activated reaction, so that when a tension is applied between the two ends of the electric conductive body, it is heated and the hot melt or heat activated reaction glue melts and activates, so that once the tension is not applied, the glue cools, materializing the fixing of the surfaces to be joined.
  • the electrical conductive body, on which the hot melt or heat activated reaction glue coating is deposited can have any section and configuration, and can also materialize a continuous or spot welding, useful for joining any type of surfaces.
  • the voltage can be applied directly to the electric conductive body, or the voltage can be applied through an additional device, also conductive, connected to the respective ends of the conductive body.
  • the conductive body provided with the corresponding hot melt or heat activated reaction glue coating, can form a loop, so that the activation of the glue will be carried out by applying an electromagnetic field created by an induction machine.
  • the electric welding system based on a welding element defined by an electric conductive body provided with a hot melt glue coating, has the great advantage of being a non-destructive system, since once activated and the surfaces joined together If it is desired to dissociate the previously joined surfaces, it will be enough to practice a new application of tension so that when the conductive body is heated the glue sheath and the surfaces can be separated.
  • the described welding system can be used as an element, as a clamp and as a sealing element.
  • the electric welding system that is presented is applicable in all those industries that require the union of different components with each other, being able to join all kinds of materials, whether porous or not and of the same nature or different nature, being able to choose the type of Heat activated glue more suitable for each case. Likewise, it can be used as an element, as a block for application in walls and floors in the anchorage of different bodies, as well as a sealing element in different industries.
  • a second form of use is that in which the hot glue is disposed on one of the surfaces to be joined by placing the second surface to be joined and letting the glue cool causing the surfaces to join.
  • the union by means of the hot melts is a reversible union, that is to say, before a new application of heat the joined surfaces can be separated, while the union with glue of Heat activated reaction is irreversible, since in its process an irreversible chemical reaction occurs.
  • welding serves to join two or more bodies that have a contact surface, so that in certain procedures local fusion of the bodies in contact with the apply a sufficiently intense heat, so that we can briefly cite the known arc welding, argon welding and resistance welding, which are notoriously known, and we can briefly say that: a) In electric welding by thermal energy arc is provided by an electric arc and the electrode is generally shaped like a metal supply rod with a mineral envelope. b) In argon welding, the electrode does not have any envelopes. It can be the input electrode of a consumable or non-consumable element.
  • the electrical conductive body is capable of presenting at its ends two connectors, also conductors, through which the voltage is applied, which can facilitate the application of the voltage through them.
  • the electrical conductive body and the connectors, also conductive, can have any shape and section.
  • the welding element is capable of being defined by an electric conductive body that has a series of small hot melt glue or heat activated reaction coatings, spaced apart from each other, which allows welding to be obtained. for points.
  • the welding element is capable of being defined by an electric conductor body in the form of a loop with the corresponding hot melt or heat activated reaction glue coating, which is activated by an electromagnetic field.
  • the surfaces joined by the welding element whose conductive body is covered with a hot melt glue, can be separated by a new application of tension between the ends of the electric conductive body, by melting the glue again and allowing its non-destructive separation.
  • the welding element can be used as a plug when it is housed in the corresponding hole of a wall or of the floor itself to hold the respective body, as well as a sealing element and a watertight joint in numerous industries.
  • Figure 1. It shows a side elevation view of the welding element constituted by an electric conductive body and a hot melt or heat activated reaction glue coating, the conductive body being able to present at its ends a additional connector for voltage application.
  • Figure 2. Shows a sectional view of the welding element constituted by an electric conductive body and a hot melt or heat activated reaction glue coating, according to a practical embodiment in which the electric conductive body has a circular section.
  • Figure 3. Shows a sectional view of the welding element constituted by an electric conductive body and a hot melt or heat activated reaction glue coating, according to a practical embodiment in which the electric conductive body is defined by a sheet of small thickness. .
  • Figure 4.- Shows a side elevation view of a welding element constituted by an electric conductive body, which has a series of point coatings of a hot melt or heat activated reaction glue that allows spot welding.
  • a connecting element 1 which is constituted by an electrical conductor body 2 provided with a coating 3 of a hot melt or heat activated reaction glue, by applying a tension between the ends A and B of the electrical conductor body 2.
  • the electrical conductor body 2 can have at its ends two connectors 4 electrical conductors, through which the voltage is applied, that is, the voltage can be applied directly on the electrical conductor body 2 or on the corresponding connectors 4, also conductors , integral to the ends of the electrical conductor body 2 that has received the coating 3 of the hot melt or heat activated reaction glue, by means of which the application of tension can be facilitated.
  • the electric conductor body 2 can have any shape and section, and thus it can be straight, configure arcs and angles, and in general it can adopt any flat figure, in order to adapt to the area of the surfaces to be welded or sealed, and even depending on the characteristics of the glue coating can occur in coils.
  • the dimensions of the electric conductor body 2 can be adapted to the user's needs, according to different parameters, such as the voltage to be applied, the application time, etc.
  • element 1 will be arranged between the surfaces to be joined and when applying a voltage between the two ends A and B of the electrical conductor body 2, either directly or through the connectors 4 if incorporated, the body 2
  • the electric conductor is heated and the hot melt or heat activated reaction coating 3 melts and activates, so that when the tension is stopped applying the adhesive cools, leaving the two surfaces to be intimately fixed together.
  • the electric welding system based on the use of a hot melt glue, has the great advantage of being a reversible process, since, once element 1 is used to join two surfaces, when re-applying tension to the ends of the conductive body 2 electric, the glue melts again allowing the separation of the surfaces that had joined, non-destructively, and also being reusable.
  • the welding system based on the use of a heat activated reaction glue is not a reversible process, because an irreversible chemical reaction occurs, but it is a system that gives a safer bond.
  • the electric welding element 1 is applicable in the union of any type of porous or non-porous surfaces, and of the same or different nature from each other, depending on the type of glue used.
  • welding can be applied as a bead Continuous welding of the desired length, or it can be applied by points, in which case they can be arranged by small elements 1 spaced apart from each other and applying tension individually to each of them, or we can obtain an element 1 defined by a body 2 electric conductor and a series of glue coatings 3 spaced apart from each other, so that applying tension between ends A and B will produce spot welding in those areas where the glue coating was.
  • the coating 3 can be of any type of hot melt or heat activated reaction glue, regardless of its activation temperature, since this activation occurs with the heating of the corresponding electrical conductor body 2 as a current passes through it, created by the potential difference applied between the ends of the body 2 electric conductor. Thus, the temperature will only depend on the time during which the intensity is circulating.
  • the electrical conductor body 2 can be constructed in a loop, presenting the hot melt glue or heat activated reaction coating 3, so that said activation is carried out by applying an electromagnetic field created by a machine induction
  • the electric welding system presented has the great advantage of being able to be applied anywhere, with only the corresponding power supply available, as well as being able to be used for the union of all types of components.
  • the welding element 1 can be applied as a plug by placing it in a hole made in the floor or a wall to fix the desired body therein, being a substitute for the known wooden, plastic or resin tacos used, as elements for fixing different tools, such as nails, screws, scarps, etc.
  • the welding element 1 can be used as a sealant in numerous cases, and thus, it can be presented as a cord in which a cooking plate or a sink sits for mounting in the corresponding hole of the countertop furniture, acting as an element of tight fitting.

Abstract

The invention relates to an electric welding system whereby components are joined by means of heat-activated reaction or thermofusible adhesives. The inventive system comprises an element (1) which is defined by an electric conductive body (2) having a coating (3) made from a heat-activated reaction or thermofusible adhesive. When a voltage is applied between the ends of said electric conductive body (2), which is disposed between the surfaces to be joined, said electric conductive body (2) heats up, thereby melting, or causing a chemical reaction in relation to, the coating adhesive (3). In this way, in the case of a thermofusible adhesive coating, when the voltage applied between the ends of the electric conductive body (2) is discontinued, the cooling of the melted adhesive ensures that the surfaces to be joined, between which said adhesive is disposed, remain closely joined.

Description

SISTEMA DE SOLDADURA ELÉCTRICA. OBJETO DE LA INVENCIÓN. La siguiente invención, según se expresa en el enunciado de la presente memoria descriptiva, se refiere a un sistema de soldadura eléctrica, estando el sistema de soldadura eléctrica basado en un elemento de soldadura definido por un cuerpo conductor eléctrico provisto de un cubrimiento de un pegamento termofusible o de reacción activada por calor, de forma que al aplicar una tensión entre los dos extremos del cuerpo conductor eléctrico, el mismo se calienta y el pegamento termofusible o de reacción activada por calor se funde y se activa, para que, una vez que se deje de aplicar la tensión, el pegamento se enfríe, materializando la fijación de las superficies a unir. ELECTRICAL WELDING SYSTEM. OBJECT OF THE INVENTION The following invention, as expressed in the statement of the present specification, refers to an electric welding system, the electric welding system being based on a welding element defined by an electric conductive body provided with a glue covering hot melt or heat activated reaction, so that when a tension is applied between the two ends of the electric conductive body, it is heated and the hot melt or heat activated reaction glue melts and activates, so that once the tension is not applied, the glue cools, materializing the fixing of the surfaces to be joined.
El cuerpo conductor eléctrico, sobre el que se deposita el recubrimiento del pegamento termofusible o de reacción activada por calor, puede presentar cualquier sección y configuración, pudiendo, además, materializar una soldadura continua o por puntos, de utilidad para la unión de cualquier tipo de superficies.The electrical conductive body, on which the hot melt or heat activated reaction glue coating is deposited, can have any section and configuration, and can also materialize a continuous or spot welding, useful for joining any type of surfaces.
Al cuerpo conductor eléctrico se le puede aplicar la tensión directamente, o bien la tensión se le puede aplicar a través de un dispositivo adicional, también conductor, unido a los respectivos extremos del cuerpo conductor.The voltage can be applied directly to the electric conductive body, or the voltage can be applied through an additional device, also conductive, connected to the respective ends of the conductive body.
Asimismo, el cuerpo conductor, provisto del correspondiente recubrimiento del pegamento termofusible o de reacción activada por calor, puede conformar un bucle, de forma que la activación del pegamento se llevará a cabo mediante la aplicación de un campo electromagnético creado por una máquina de inducción.Also, the conductive body, provided with the corresponding hot melt or heat activated reaction glue coating, can form a loop, so that the activation of the glue will be carried out by applying an electromagnetic field created by an induction machine.
Además, el sistema de soldadura eléctrica basado en un elemento de soldadura definido por un cuerpo conductor eléctrico provisto de un recubrimiento de un pegamento termofusible, presenta la gran ventaja de ser un sistema no destructivo, ya que una vez activado y las superficies unidas entre sí, si se desea desunir las superficies previamente unidas, bastará practicar una nueva aplicación de tensión para que al calentarse el cuerpo conductor el pegamento funda y las superficies se puedan separar. Asimismo, el sistema de soldadura descrito puede utilizarse como un elemento, a modo de taco de sujeción y como elemento sellante.In addition, the electric welding system based on a welding element defined by an electric conductive body provided with a hot melt glue coating, has the great advantage of being a non-destructive system, since once activated and the surfaces joined together If it is desired to dissociate the previously joined surfaces, it will be enough to practice a new application of tension so that when the conductive body is heated the glue sheath and the surfaces can be separated. Also, the described welding system can be used as an element, as a clamp and as a sealing element.
CAMPO DE APLICACIÓN. El sistema de soldadura eléctrica que se presenta es de aplicación en todas aquellas industrias que precisan la unión de distintos componentes entre sí, pudiendo unir todo tipo de materiales, ya sean porosos o no y de igual naturaleza o diferente naturaleza, pudiendo elegir el tipo de pegamento activado por calor más idóneo a cada caso. Asimismo, puede utilizarse como elemento, a modo de taco para su aplicación en paredes y suelos en el anclaje de distintos cuerpos, así como elemento sellante en diferentes industrias.SCOPE. The electric welding system that is presented is applicable in all those industries that require the union of different components with each other, being able to join all kinds of materials, whether porous or not and of the same nature or different nature, being able to choose the type of Heat activated glue more suitable for each case. Likewise, it can be used as an element, as a block for application in walls and floors in the anchorage of different bodies, as well as a sealing element in different industries.
ANTECEDENTES DE LA INVENCIÓN. En el mercado existen una multitud de medios para unir diferentes superficies entre sí, de forma que dependiendo de las superficies a unir se aplican unos u otros, teniendo en cuenta en numerosas casos que la unión pueda liberarse o no.BACKGROUND OF THE INVENTION In the market there are a multitude of means to join different surfaces to each other, so that depending on the surfaces to be joined they apply one or the other, taking into account in many cases that the union can be released or not.
Por otra parte, cada día se tiene más presente la mano de obra precisa por el coste económico que ello conlleva e incluso la estética, con objeto de poder obtener un acabado acorde con la estética del conjunto.On the other hand, the precise workforce is more present every day because of the economic cost that this entails and even the aesthetics, in order to be able to obtain a finish according to the aesthetics of the whole.
Teniendo en cuenta la soldadura por medio de pegamentos, podemos considerar los pegamentos termofusibles y los pegamentos de reacción por calor, de forma que su utilización puede llevarse a cabo de manera que entre la superficie a unir se dispone el pegamento y el conjunto se introduce en un horno para que al aplicar el calor el pegamento funda y al enfriarse se obtenga la unión de las superficies a fijar.Taking into account the welding by means of adhesives, we can consider hot melts and heat reaction adhesives, so that their use can be carried out so that the glue is arranged between the surface to be joined and the assembly is introduced into an oven so that when the heat is applied, the glue melts and when it cools, the joint of the surfaces to be fixed is obtained.
Asimismo, una segunda forma de utilización es aquella en la que el pegamento caliente se dispone sobre una de las superficies a unir colocando la segunda superficie a unir y dejar que el pegamento enfríe provocando la unión de las superficies.Likewise, a second form of use is that in which the hot glue is disposed on one of the surfaces to be joined by placing the second surface to be joined and letting the glue cool causing the surfaces to join.
La unión mediante los pegamentos termofusibles es una unión reversible, esto es, ante una nueva aplicación de calor las superficies unidas pueden separarse, mientras que la unión con pegamento de reacción activada por calor es irreversible, ya que, en su proceso se produce una reacción química irreversible.The union by means of the hot melts is a reversible union, that is to say, before a new application of heat the joined surfaces can be separated, while the union with glue of Heat activated reaction is irreversible, since in its process an irreversible chemical reaction occurs.
Lógicamente, esta forma de soldadura por calor presenta diversos inconvenientes, entre los que se puede citar que los cuerpos a unir deben de introducirse en un horno y las dimensiones deberán ser acordes con los mismos, y además, en ciertos casos sucede que por el lugar en el que se va a llevar a cabo la unión los cuerpos a unir no se pueden introducir en un horno y la aplicación directa del calor tampoco sea posible, debiendo buscar formas de unión alternativas. Asimismo, respecto de las soldaduras eléctricas en general podemos indicar que, como es conocido, la soldadura sirve para unir dos o más cuerpos que presentan una superficie de contacto, de forma que en ciertos procedimientos se produce la fusión local de los cuerpos en contacto al aplicar un calor lo suficientemente intenso, de manera que brevemente podemos citar las conocidas soldaduras eléctricas por arco, la soldadura eléctrica al argón y la soldadura por resistencia, las cuales son notoriamente conocidas, y escuetamente podemos decir que: a) En la soldadura eléctrica por arco la energía térmica es proporcionada por un arco eléctrico y el electrodo, generalmente, tiene forma de varilla de metal de aporte con una envoltura mineral. b) En la soldadura eléctrica al argón el electrodo no presenta envoltura alguna. Pudiendo ser el electrodo de aporte de un elemento consumible o no consumible. c) Por otra parte, en la soldadura por resistencia el calor aportado para la fusión del elemento se obtiene por efecto Joule. DESCRIPCIÓN DE LA INVENCIÓN. En la presente memoria se describe un sistema de soldadura eléctrica, de forma que el sistema de soldadura esta basado en la utilización de un elemento definido por un cuerpo conductor eléctrico recubierto de un pegamento termofusible o de reacción activada por calor, mediante la aplicación de una tensión entre los extremos del cuerpo conductor eléctrico, dispuesto entre las superficies a unir, provocando dicha tensión un calentamiento del cuerpo conductor eléctrico, fundiendo o desencadenando una reacción química del pegamento de recubrimiento, de tal manera que cuando el recubrimiento es de un pegamento termofusible, al cesar la aplicación de la tensión entre los extremos del cuerpo conductor eléctrico, el enfriamiento del pegamento fundido hace que las superficies a unir entre las que se encuentra queden íntimamente fijadas.Logically, this form of heat welding presents several drawbacks, among which it can be mentioned that the bodies to be joined must be introduced in an oven and the dimensions must be consistent with them, and in addition, in certain cases it happens that through the place in which the union is to be carried out, the bodies to be joined cannot be introduced in an oven and the direct application of heat is also not possible, having to look for alternative forms of union. Likewise, with regard to electrical welding in general, we can indicate that, as is known, welding serves to join two or more bodies that have a contact surface, so that in certain procedures local fusion of the bodies in contact with the apply a sufficiently intense heat, so that we can briefly cite the known arc welding, argon welding and resistance welding, which are notoriously known, and we can briefly say that: a) In electric welding by thermal energy arc is provided by an electric arc and the electrode is generally shaped like a metal supply rod with a mineral envelope. b) In argon welding, the electrode does not have any envelopes. It can be the input electrode of a consumable or non-consumable element. c) On the other hand, in resistance welding the heat contributed to the fusion of the element is obtained by Joule effect. DESCRIPTION OF THE INVENTION An electric welding system is described herein, so that the welding system is based on the use of an element defined by an electric conductive body coated with a hot melt or heat activated reaction glue, by applying a tension between the ends of the electrical conductive body, arranged between the surfaces to be joined, said tension causing a heating of the electrical conductive body, melting or triggering a chemical reaction of the coating glue, such that when the coating is made of a hot melt glue, when the application of the tension between the ends of the electric conductive body ceases, the cooling of the molten glue causes the surfaces to be joined between those found to be intimately set.
El cuerpo conductor eléctrico es susceptible de presentar en sus extremos sendos conectores, también conductores, a través de los cuales se aplica la tensión, los cuales pueden facilitar la aplicación de la tensión a través de ellos. El cuerpo conductor eléctrico y los conectores, también conductores, pueden presentar cualquier forma y sección.The electrical conductive body is capable of presenting at its ends two connectors, also conductors, through which the voltage is applied, which can facilitate the application of the voltage through them. The electrical conductive body and the connectors, also conductive, can have any shape and section.
Por otra parte, en una ejecución práctica de la invención el elemento de soldadura es susceptible de definirse por un cuerpo conductor eléctrico que presenta una serie de pequeños recubrimientos de pegamento termofusible o de reacción activada por calor, distanciados entre sí, que permite obtener una soldadura por puntos.On the other hand, in a practical embodiment of the invention, the welding element is capable of being defined by an electric conductive body that has a series of small hot melt glue or heat activated reaction coatings, spaced apart from each other, which allows welding to be obtained. for points.
Asimismo, el elemento de soldadura es susceptible de definirse por un cuerpo conductor eléctrico en forma de bucle con el correspondiente recubrimiento de pegamento termofusible o de reacción activada por calor, activándose el mismo por un campo electromagnético.Likewise, the welding element is capable of being defined by an electric conductor body in the form of a loop with the corresponding hot melt or heat activated reaction glue coating, which is activated by an electromagnetic field.
Las superficies unidas mediante el elemento de soldadura, cuyo cuerpo conductor esta recubierto de un pegamento termofusible son susceptibles de separarse mediante una nueva aplicación de tensión entre los extremos del cuerpo conductor eléctrico, al fundir nuevamente el pegamento y permitir su separación no destructiva.The surfaces joined by the welding element, whose conductive body is covered with a hot melt glue, can be separated by a new application of tension between the ends of the electric conductive body, by melting the glue again and allowing its non-destructive separation.
Asimismo, el elemento de soldadura puede utilizarse como taco al alojarse en el correspondiente orificio de una pared o del propio suelo para sujetar el respectivo cuerpo, así como elemento sellante y unión estanca en numerosas industrias.Likewise, the welding element can be used as a plug when it is housed in the corresponding hole of a wall or of the floor itself to hold the respective body, as well as a sealing element and a watertight joint in numerous industries.
BREVE DESCRIPCIÓN DE LOS DISEÑOS.BRIEF DESCRIPTION OF THE DESIGNS.
Figura 1.- Muestra una vista en alzado lateral del elemento de soldadura constituido por un cuerpo conductor eléctrico y un recubrimiento de pegamento termofusible o de reacción activada por calor, pudiendo presentar el cuerpo conductor en sus extremos un conector adicional para la aplicación de la tensión.Figure 1.- It shows a side elevation view of the welding element constituted by an electric conductive body and a hot melt or heat activated reaction glue coating, the conductive body being able to present at its ends a additional connector for voltage application.
Figura 2.- Muestra una vista seccionada del elemento de soldadura constituido por un cuerpo conductor eléctrico y un recubrimiento de pegamento termofusíble o de reacción activada por calor, según una realización práctica en la que el cuerpo conductor eléctrico presenta una sección circular.Figure 2.- Shows a sectional view of the welding element constituted by an electric conductive body and a hot melt or heat activated reaction glue coating, according to a practical embodiment in which the electric conductive body has a circular section.
Figura 3.- Muestra una vista seccionada del elemento de soldadura constituido por un cuerpo conductor eléctrico y un recubrimiento de pegamento termofusible o de reacción activada por calor, según una realización práctica en la que el cuerpo conductor eléctrico se define por una lámina de pequeño grosor.Figure 3.- Shows a sectional view of the welding element constituted by an electric conductive body and a hot melt or heat activated reaction glue coating, according to a practical embodiment in which the electric conductive body is defined by a sheet of small thickness. .
Figura 4.- Muestra una vista en alzado lateral de un elemento de soldadura constituido por un cuerpo conductor eléctrico, el cual presenta una serie de recubrimientos puntuales de un pegamento termofusible o de reacción activada por calor que permite obtener una soldadura por puntos.Figure 4.- Shows a side elevation view of a welding element constituted by an electric conductive body, which has a series of point coatings of a hot melt or heat activated reaction glue that allows spot welding.
DESCRIPCIÓN DE UNA REALIZACIÓN PREFERENTE.DESCRIPTION OF A PREFERRED EMBODIMENT.
A la vista de las comentadas figuras y de acuerdo con la numeración adoptada podemos observar como el sistema de soldadura eléctrica se basa en la utilización de un elemento 1 de unión, el cual se constituye por un cuerpo 2 conductor eléctrico provisto de un recubrimiento 3 de un pegamento termofusible o de reacción activada por calor, al aplicar una tensión entre los extremos A y B del cuerpo 2 conductor eléctrico. El cuerpo 2 conductor eléctrico puede presentar en sus extremos sendos conectores 4 conductores eléctricos, a través de los cuales se aplica la tensión, es decir, la tensión puede ser aplicada directamente en el cuerpo 2 conductor eléctrico o en los correspondientes conectores 4, también conductores, solidarios a los extremos del cuerpo 2 conductor eléctrico que ha recibido el recubrimiento 3 del pegamento termofusible o de reacción activada por calor, mediante los cuales se puede facilitar la aplicación de la tensión.In view of the aforementioned figures and in accordance with the numbering adopted we can observe how the electric welding system is based on the use of a connecting element 1, which is constituted by an electrical conductor body 2 provided with a coating 3 of a hot melt or heat activated reaction glue, by applying a tension between the ends A and B of the electrical conductor body 2. The electrical conductor body 2 can have at its ends two connectors 4 electrical conductors, through which the voltage is applied, that is, the voltage can be applied directly on the electrical conductor body 2 or on the corresponding connectors 4, also conductors , integral to the ends of the electrical conductor body 2 that has received the coating 3 of the hot melt or heat activated reaction glue, by means of which the application of tension can be facilitated.
Asimismo, el cuerpo 2 conductor eléctrico puede presentar cualquier forma y sección, y así puede ser recto, configurar arcos y ángulos, y en general puede adoptar cualquier figura plana, con objeto de adaptarse a la zona de las superficies a soldar o sellar, e incluso dependiendo de las características del recubrimiento de pegamento puede presentarse en bobinas.Likewise, the electric conductor body 2 can have any shape and section, and thus it can be straight, configure arcs and angles, and in general it can adopt any flat figure, in order to adapt to the area of the surfaces to be welded or sealed, and even depending on the characteristics of the glue coating can occur in coils.
Así, en las figuras 2 y 3 se han representado dos ejecuciones prácticas en las que el cuerpo 2 conductor eléctrico, en una de ellas presenta una sección cilindrica y en la segunda de ellas se define por una lámina de pequeño grosor.Thus, in figures 2 and 3 two practical executions have been shown in which the electric conductor body 2, in one of them has a cylindrical section and in the second one is defined by a sheet of small thickness.
Por otra parte, las dimensiones del cuerpo 2 conductor eléctrico se podrán adaptar a las necesidades del usuario, de acuerdo a diferentes parámetros, como puede ser la tensión a aplicar, el tiempo de aplicación, etc..On the other hand, the dimensions of the electric conductor body 2 can be adapted to the user's needs, according to different parameters, such as the voltage to be applied, the application time, etc.
Para la fijación de los componentes deseados el elemento 1 se dispondrá entre las superficies a unir y al aplicar una tensión entre los dos extremos A y B del cuerpo 2 conductor eléctrico, bien directamente o a través de los conectores 4 si los incorpora, el cuerpo 2 conductor eléctrico se calienta y el recubrimiento 3 de pegamento termofusible o de reacción activada por calor se funde y se activa, de forma que al dejar de aplicar la tensión el pegamento se enfría quedando las dos superficies a unir íntimamente fijadas entre sí. El sistema de soldadura eléctrica, basado en la utilización de un pegamento termofusible tiene la gran ventaja de ser un proceso reversible, ya que, una vez utilizado el elemento 1 para unir dos superficies, al volver a aplicar tensión en los extremos del cuerpo 2 conductor eléctrico, el pegamento vuelve a fundirse posibilitando la separación de las superficies que se habían unido, de forma no destructiva, y además siendo reutilizable.For fixing the desired components element 1 will be arranged between the surfaces to be joined and when applying a voltage between the two ends A and B of the electrical conductor body 2, either directly or through the connectors 4 if incorporated, the body 2 The electric conductor is heated and the hot melt or heat activated reaction coating 3 melts and activates, so that when the tension is stopped applying the adhesive cools, leaving the two surfaces to be intimately fixed together. The electric welding system, based on the use of a hot melt glue, has the great advantage of being a reversible process, since, once element 1 is used to join two surfaces, when re-applying tension to the ends of the conductive body 2 electric, the glue melts again allowing the separation of the surfaces that had joined, non-destructively, and also being reusable.
El sistema de soldadura basado en la utilización de un pegamento de reacción activada por calor, no es un proceso reversible, por producirse una reacción química irreversible, pero es un sistema que otorga una unión más segura.The welding system based on the use of a heat activated reaction glue is not a reversible process, because an irreversible chemical reaction occurs, but it is a system that gives a safer bond.
El elemento 1 de soldadura eléctrica es de aplicación en la unión de cualquier tipo de superficies porosas o no porosas, y de igual o distinta naturaleza entre sí, pudiendo depender del tipo de pegamento utilizado. Además, la soldadura puede ser aplicada como un cordón continuo de soldadura de la longitud deseada, o bien puede aplicarse por puntos, en cuyo caso se podrán disponer por pequeños elementos 1 distanciados entre sí y aplicando tensión individualmente a cada uno de ellos, o bien podremos obtener un elemento 1 definido por un cuerpo 2 conductor eléctrico y una serie de recubrimientos de pegamento 3 distanciados entre sí, de manera que al aplicar tensión entre los extremos A y B se producirá una soldadura por puntos en aquellas zonas en las que estaba el recubrimiento de pegamento.The electric welding element 1 is applicable in the union of any type of porous or non-porous surfaces, and of the same or different nature from each other, depending on the type of glue used. In addition, welding can be applied as a bead Continuous welding of the desired length, or it can be applied by points, in which case they can be arranged by small elements 1 spaced apart from each other and applying tension individually to each of them, or we can obtain an element 1 defined by a body 2 electric conductor and a series of glue coatings 3 spaced apart from each other, so that applying tension between ends A and B will produce spot welding in those areas where the glue coating was.
El recubrimiento 3 puede ser de cualquier tipo de pegamento termofusible o de reacción activada por calor, independientemente de su temperatura de activación, ya que esta activación se produce con el calentamiento del correspondiente cuerpo 2 conductor eléctrico al paso de una corriente por él, creada por la diferencia de potencial aplicada entre los extremos del cuerpo 2 conductor eléctrico. Así, la temperatura solo dependerá del tiempo durante el cual la intensidad este circulando.The coating 3 can be of any type of hot melt or heat activated reaction glue, regardless of its activation temperature, since this activation occurs with the heating of the corresponding electrical conductor body 2 as a current passes through it, created by the potential difference applied between the ends of the body 2 electric conductor. Thus, the temperature will only depend on the time during which the intensity is circulating.
De manera análoga el cuerpo 2 conductor eléctrico puede ser construido en forma de bucle, presentando el recubrimiento 3 de pegamento termofusible o de reacción activada por calor, de forma que dicha activación se lleva a cabo mediante la aplicación de un campo electromagnético creado por una máquina de inducción.Similarly, the electrical conductor body 2 can be constructed in a loop, presenting the hot melt glue or heat activated reaction coating 3, so that said activation is carried out by applying an electromagnetic field created by a machine induction
El sistema de soldadura eléctrica que se presenta tiene la gran ventaja de poder ser aplicado en cualquier lugar, con tan solo poder disponer de la correspondiente alimentación eléctrica, además de poder ser utilizada para la unión de todo tipo de componentes. Por otra parte, el elemento 1 de soldadura puede ser aplicado como taco al disponerlo en un orificio practicado en el suelo o una pared para fijar el cuerpo deseado en él, siendo sustituto de los conocidos tacos de madera, plástico o resinas utilizadas, como elementos de fijación de distintos útiles, como clavos, tornillos, escarpias, etc..The electric welding system presented has the great advantage of being able to be applied anywhere, with only the corresponding power supply available, as well as being able to be used for the union of all types of components. On the other hand, the welding element 1 can be applied as a plug by placing it in a hole made in the floor or a wall to fix the desired body therein, being a substitute for the known wooden, plastic or resin tacos used, as elements for fixing different tools, such as nails, screws, scarps, etc.
Asimismo, el elemento 1 de soldadura puede ser utilizado como sellante en numerosos casos, y así, puede presentarse como un cordón en el que asiente una placa de cocción o un fregadero para su montaje en el correspondiente orificio del mueble encimera, actuando como elemento de fijación estanco. Also, the welding element 1 can be used as a sealant in numerous cases, and thus, it can be presented as a cord in which a cooking plate or a sink sits for mounting in the corresponding hole of the countertop furniture, acting as an element of tight fitting.

Claims

R E I V I N D I C A C I O N E S. 1a SISTEMA DE SOLDADURA ELÉCTRICA, de forma que la unión de los componentes se lleva a cabo por medio de pegamentos termofusibles o de reacción activada por calor, caracterizado porque el sistema esta basado en un elemento (1) definido por un cuerpo (2) conductor eléctrico con un recubrimiento (3) de un pegamento termofusible o de reacción activada por calor, mediante la aplicación de una tensión entre los extremos del cuerpo (2) conductor eléctrico, dispuesto entre las superficies a unir, provocando dicha tensión un calentamiento del cuerpo (2) conductor eléctrico, fundiendo o desencadenando una reacción química del pegamento (3) de recubrimiento, de tal manera que cuando el recubrimiento es de un pegamento termofusible, al cesar la aplicación de la tensión entre los extremos del cuerpo (2) conductor eléctrico, el enfriamiento del pegamento fundido hace que las superficies a unir entre las que se encuentra queden íntimamente fijadas.REIVINDICACIONE S. 1 a ELECTRICAL WELDING SYSTEM, so that the union of the components is carried out by means of hot melts or heat activated reaction, characterized in that the system is based on an element (1) defined by a body (2) electric conductor with a coating (3) of a hot melt or heat activated reaction glue, by applying a tension between the ends of the body (2) electric conductor, arranged between the surfaces to be joined, causing said tension a heating of the electric conductor body (2), melting or triggering a chemical reaction of the coating glue (3), such that when the coating is made of a hot melt glue, when the application of the tension between the ends of the body ceases (2 ) electric conductor, the cooling of the molten glue causes the surfaces to be joined between the ones found to be intimately fixed.
2a SISTEMA DE SOLDADURA ELÉCTRICA, según reivindicación 1a caracterizado porque el cuerpo (2) conductor eléctrico es susceptible de presentar en sus extremos sendos conectores (4), también conductores, a través de los cuales se aplica la tensión.2 ELECTRIC WELDING SYSTEM, according to claim 1 wherein the body (2) electrical conductor is susceptible to present their respective end connectors (4), also conductor, through which the voltage is applied.
3a SISTEMA DE SOLDADURA ELÉCTRICA, según reivindicaciones 1a y 2a caracterizado porque el cuerpo (2) conductor eléctrico y los conectores (4), también conductores, pueden presentar cualquier forma y sección. 4a SISTEMA DE SOLDADURA ELÉCTRICA, según reivindicación3 ELECTRIC WELDING SYSTEM, according to claims 1 and 2 characterized in that the body (2) and electrically conductive connectors (4), also conductive, may have any shape and section. 4 a ELECTRICAL WELDING SYSTEM, according to claim
1a caracterizado porque el elemento (1) se define por un cuerpo (2) conductor eléctrico que presenta una serie de pequeños recubrimientos (3) de un pegamento termofusible o de reacción activada por calor que permite obtener una soldadura por puntos. 5a SISTEMA DE SOLDADURA ELÉCTRICA, según reivindicación1 a characterized in that the element (1) is defined by an electrically conductive body (2) having a series of small coatings (3) of a hot melt or heat activated reaction glue that allows spot welding. 5 a ELECTRICAL WELDING SYSTEM, according to claim
1a caracterizado porque el elemento (1) se define por un cuerpo (2) conductor eléctrico en forma de bucle con el correspondiente recubrimiento de un pegamento termofusible o de reacción activada por calor, activándose el mismo por un campo electromagnético. 6a SISTEMA DE SOLDADURA ELÉCTRICA, según anteriores reivindicaciones caracterizado porque las superficies unidas mediante el elemento (1) definido por un cuerpo (2) conductor y un recubrimiento (3) de un pegamento termofusible son susceptibles de separarse mediante una nueva aplicación de tensión entre los extremos del cuerpo (2) conductor eléctrico, al fundir nuevamente el pegamento permitiendo su separación no destructiva. 1 a characterized in that the element (1) is defined by an electrically conductive body (2) in the form of a loop with the corresponding coating of a hot melt or heat activated reaction glue, which is activated by an electromagnetic field. 6 ELECTRIC WELDING SYSTEM, according to previous claims characterized in that the surfaces joined by the element (1) defined by a conductive body (2) and a coating (3) of a hot melt glue are capable of being separated by a new application of tension between the ends of the electrically conductive body (2) , by melting the glue again allowing its non-destructive separation.
PCT/ES2001/000221 2001-05-31 2001-05-31 Electric welding system WO2002096624A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994005485A1 (en) * 1992-09-08 1994-03-17 E. O. Butts Consultants Ltd. Electric fusion welding of thermoplastic materials
GB2275224A (en) * 1993-02-05 1994-08-24 Vip Ind Ltd Welding method and luggage case
US5481091A (en) * 1992-01-15 1996-01-02 Edison Welding Institute Thermoplastic welding
ES2095244T3 (en) * 1989-11-29 1997-02-16 Gas De France PROCEDURE AND DEVICE TO DETECT A HEATING CONDITION OF A PIECE OF PLASTIC MATTER AND CONNECTION PIECE FOR THE WELDING OF ELEMENTS ALSO OF PLASTIC MATTER.
FR2749534A1 (en) * 1996-06-08 1997-12-12 Chanet Jacques Jean Antoine Welding together plastic pieces

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2095244T3 (en) * 1989-11-29 1997-02-16 Gas De France PROCEDURE AND DEVICE TO DETECT A HEATING CONDITION OF A PIECE OF PLASTIC MATTER AND CONNECTION PIECE FOR THE WELDING OF ELEMENTS ALSO OF PLASTIC MATTER.
US5481091A (en) * 1992-01-15 1996-01-02 Edison Welding Institute Thermoplastic welding
WO1994005485A1 (en) * 1992-09-08 1994-03-17 E. O. Butts Consultants Ltd. Electric fusion welding of thermoplastic materials
GB2275224A (en) * 1993-02-05 1994-08-24 Vip Ind Ltd Welding method and luggage case
FR2749534A1 (en) * 1996-06-08 1997-12-12 Chanet Jacques Jean Antoine Welding together plastic pieces

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