ES2333396A2 - Manufacturing procedure of a kitchen utensil suitable for induction kitchens (Machine-translation by Google Translate, not legally binding) - Google Patents

Manufacturing procedure of a kitchen utensil suitable for induction kitchens (Machine-translation by Google Translate, not legally binding) Download PDF

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Publication number
ES2333396A2
ES2333396A2 ES200930886A ES200930886A ES2333396A2 ES 2333396 A2 ES2333396 A2 ES 2333396A2 ES 200930886 A ES200930886 A ES 200930886A ES 200930886 A ES200930886 A ES 200930886A ES 2333396 A2 ES2333396 A2 ES 2333396A2
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container
base
stainless steel
disk
temperature
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ES2333396R (en
ES2333396B1 (en
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Josep Carbonell Callico
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/002Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/02Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)

Abstract

Method of manufacturing a kitchen utensil suitable for induction cookers. This process comprises: - the manufacture of an aluminum container provided with a base with a smooth outer surface, - the manufacture of a stainless steel disc provided with a smooth top surface, - the heating of a mold at a temperature of between 200 and 300º c., - the uniform heating of the stainless steel disk at a temperature between 400 and 700º c., - the uniform heating of the aluminum container at a temperature between 300 and 450º c., - the introduction of the disk of stainless steel and the container previously heated in the mold also heated and, - the application on the container (1) and the disc (2) of a compression force comprised between 600 and 5000 tons, for a time comprised between 0.1 and 10 seconds. (Machine-translation by Google Translate, not legally binding)

Description

Procedimiento de fabricación de un utensilio de cocina apto para cocinas de inducción.Manufacturing procedure for a utensil of kitchen suitable for induction cookers.

Objeto de la invenciónObject of the invention

La presente invención se refiere a un procedimiento de fabricación de un utensilio de cocina apto para cocinas de inducción; siendo dicho utensilio del tipo de los que comprenden un recipiente de aluminio que incorpora en su base un disco de un material ferromagnético.The present invention relates to a manufacturing procedure of a kitchen utensil suitable for induction cookers; said utensil being the type of those they comprise an aluminum container that incorporates in its base a disc of a ferromagnetic material.

Antecedentes de la invenciónBackground of the invention

En la patente ES 2 297 191 se describe un utensilio de cocción con fondo adaptado para calentamiento por inducción que comprende un recipiente en un primer material que en la cara exterior de su fondo tiene integrada una placa distribuidora o difusora de calor en un segundo material distinto, termoconductor, en donde la superficie exterior de fondo del recipiente posee una pluralidad de protuberancias espaciadas y dicha placa distribuidora de calor está constituida por un disco en un material ferromagnético dotado de un número de perforaciones pasantes equivalente al número de protuberancias y distribuidas oportunamente para permitir el acoplamiento de dicho disco, adosado sobre dicho fondo, con inserción de las protuberancias que se disponen pasantes a través de las perforaciones, quedando unido el disco al fondo por remachado de dichas protuberancias; con la particularidad de que las citadas protuberancias están constituidas por unos tetones que son troncocónicos antes de ser remachados y que quedan deformados contra las paredes de las perforaciones pasantes después de ser remachados, y de que el utensilio de cocción comprende un acabado pulido o rectificado aplicado a la cara exterior de la base de soporte del utensilio de cocción tras unión de la placa distribuidora de calor o disco al recipiente.Patent ES 2 297 191 describes a bottom cooking utensil adapted for heating by induction comprising a container in a first material that in the outer face of its bottom has an integrated plate distributor or diffuser of heat in a second different material, thermoconductor, where the outer bottom surface of the vessel possesses a plurality of spaced protuberances and said heat distributing plate is constituted by a disk in a ferromagnetic material endowed with a number of perforations interns equivalent to the number of bumps and distributed opportunely to allow the coupling of said disk, attached on said bottom, with insertion of the bumps that are they have interns through the perforations, being united the disk at the bottom by riveting said protuberances; with the particularity that the aforementioned protuberances are constituted by some big tits that are truncated before being riveted and that are deformed against the perforation walls interns after being riveted, and that the utensil of cooking includes a polished or ground finish applied to the face outside of the support base of the cooking utensil after joining from the heat distributor plate or disk to the container.

A continuación se relacionan otros antecedentes relacionados con el campo de la invención y mencionados en el documento anterior:Other background are related below related to the field of the invention and mentioned in the previous document:

Patente de invención ES-A-2002980 que propone un recipiente de cocina en cuyo fondo está fijada una placa metálica intermedia termodifusora y debajo de dicha placa un forro en acero inoxidable ferromagnético, realizándose la unión solidaria entre los elementos por soldadura.Invention patent ES-A-2002980 proposing a kitchen bowl on whose bottom a metal plate is fixed intermediate thermofuser and under said plate a steel liner ferromagnetic stainless, making the joint solidarity between the elements by welding.

Patente de invención ES-A-2108284 en la que se describe un utensilio culinario con fondo termoconductor con una lámina metálica provista de perforaciones unida a la cara exterior de dicho fondo en la operación de fundición, utilizando la fluencia del metal para rellenar dichas perforaciones.Invention patent ES-A-2108284 in which it is described a culinary utensil with thermoconductive bottom with a blade perforated metal attached to the outer face of said fund in the foundry operation, using creep of the metal to fill said perforations.

Patente de invención ES-A-2135632 referente a un utensilio de cocina con una placa o pletina metálica dotada de unas aberturas que reciben unas piezas de relleno de un material ferromagnético quedando unido el conjunto por un cordón de soldadura por rayo láser al fondo de un recipiente de acero austenítico.Invention patent ES-A-2135632 concerning a kitchen utensil with a metal plate or plate equipped with some openings that receive filling parts of a material ferromagnetic being united the set by a cord of laser beam welding at the bottom of a steel container austenitic

Solicitud de patente DE-A-3713660 referente a un utensilio de cocción fabricado en aluminio moldeado por fusión, preferiblemente una sartén, integrando al menos una pieza metálica sólida unida a la parte exterior de su fondo en la operación de moldeo por fusión con el aluminio.Patent request DE-A-3713660 concerning a cooking utensil made of fusion molded aluminum, preferably a pan, integrating at least one metal part solid attached to the outside of your fund in the operation of fusion molding with aluminum.

Solicitud de patente EP-A-722688 referente a un utensilio culinario que comprende una pieza provista de una pluralidad de protusiones y destinada a unirse por presión a la cara exterior del fondo del utensilio.Patent request EP-A-722688 concerning a utensil  culinary comprising a piece provided with a plurality of protrusions and intended to join by pressure to the outer face of the utensil bottom.

Solicitud de patente WO-A-97/09136 referente a un método para fabricar una pieza de metal destinada para constituir el fondo de un utensilio de cocción, obtenida por forja por laminador deformando plásticamente el metal y en cuyo proceso constructivo se prevé, en una de las variantes, la inclusión de unas partes metálicas calentables por inducción integradas con la pieza de metal en la operación de forja.Patent request WO-A-97/09136 concerning a method to manufacture a piece of metal intended to constitute the bottom of a cooking utensil, obtained by rolling mill plastic deformation of the metal and whose construction process is provides, in one of the variants, the inclusion of parts metal induction heaters integrated with the metal part  in the forging operation.

El documento JP-A-2003 102616 referente a un utensilio de cocción que tiene un cuerpo principal de una aleación de aluminio y una placa metálica magnética unida a la superficie exterior de la base del cuerpo principal.The document JP-A-2003 102616 concerning a cooking utensil that has a main body of an alloy of aluminum and a magnetic metal plate attached to the surface exterior of the base of the main body.

En la superficie exterior de dicha base del cuerpo principal existe una pared anular protuberante que delimita toda la periferia de la placa a una altura mayor que el grosor de la placa, existiendo una pluralidad de protuberancias insertadas a través de unos respectivos orificios pasantes en la placa de una altura mayor que el grosor de la placa metálica. La pared anular protuberante y las protuberancias están deformadas por presión contra la placa de manera que un borde periférico de la placa magnética y unos respectivos agujeros pasantes están rebordeados estrechamente.On the outer surface of said base of the main body there is a protruding annular wall that delimits the entire periphery of the plate at a height greater than the thickness of the plate, there being a plurality of protrusions inserted to through respective through holes in the plate of a height greater than the thickness of the metal plate. Annular wall protuberant and bumps are deformed by pressure against the plate so that a peripheral edge of the plate magnetic and respective through holes are flanged tightly.

Los documentos anteriores muestran diferentes soluciones para dotar a un recipiente o cuerpo principal de aluminio de una base ferromagnética que permita la utilización del utensilio en cocinas de inducción, recurriendo en unos casos a la definición en una de las dos piezas a unir de unos tetones o salientes que se enclavan o actúan sobre la pieza opuesta estableciendo una unión mecánica y, en otros casos, a verter el material fundido, destinado a conformar el recipiente, sobre una o varias piezas ferromagnéticas que quedan embebidas en el aluminio o material no ferromagnético conformante del envase.The above documents show different solutions to provide a container or main body with aluminum with a ferromagnetic base that allows the use of utensil in induction cookers, resorting in some cases to the definition in one of the two pieces to be joined by some lugs or protrusions that interlock or act on the opposite piece establishing a mechanical union and, in other cases, to pour the molten material, intended to form the container, on one or several ferromagnetic parts that are embedded in the aluminum or non-ferromagnetic packaging material.

En el primer caso la definición de protusiones y orificios para su alojamiento en las respectivas piezas de diferentes materiales complica notablemente su fabricación y requiere un correcto posicionamiento de las piezas para que durante el montaje los orificios o huecos se encuentren dispuestos en posiciones enfrentadas.In the first case the definition of protrusions and holes for accommodation in the respective pieces of different materials significantly complicates its manufacture and requires correct positioning of the pieces so that during the mounting holes or holes are arranged in opposing positions.

Estas uniones mecánicas pueden originar holguras en las zonas de unión durante la utilización del utensilio debido a los diferentes grados de expansión y contracción de los distintos materiales de las piezas que componen el utensilio.These mechanical joints can cause clearances. in the joining areas during the use of the utensil due to the different degrees of expansion and contraction of the different materials of the parts that make up the utensil.

En el segundo caso, el correcto posicionamiento de la pieza o piezas ferromagnéticas en el interior del molde utilizado para conformar el recipiente a partir de una colada de aluminio, incrementa notablemente el tiempo de fabricación del utensilio.In the second case, the correct positioning of the ferromagnetic part or parts inside the mold used to form the container from a wash of aluminum, significantly increases the manufacturing time of the utensil.

Descripción de la invenciónDescription of the invention

El procedimiento objeto de la invención presenta unas características orientadas a permitir establecer, por efecto de la presión y calentamiento, una unión molecular, permanente y de gran resistencia entre un recipiente de aluminio y un disco ferromagnético, por ejemplo de acero inoxidable, sin necesidad definir en ninguna de las piezas unas prominencias o huecos destinados a establecer una unión mecánica de dichas piezas.The process object of the invention presents characteristics oriented to allow to establish, by effect of pressure and heating, a molecular, permanent and high resistance between an aluminum container and a disc Ferromagnetic, for example stainless steel, no need define any prominences or gaps in any of the pieces intended to establish a mechanical connection of said parts.

Para conseguir esta unión molecular permanente y de elevada resistencia, el procedimiento de fabricación de un utensilio de cocina para cocinas de inducción, objeto de la invención, comprende las fases siguientes:To achieve this permanent molecular bond and High strength, the manufacturing process of a kitchen utensil for induction cookers, object of invention, comprises the following phases:

a) la fabricación de un recipiente de aluminio provisto de una base con una superficie exterior lisa,a) the manufacture of an aluminum container provided with a base with a smooth outer surface,

b) la fabricación de un disco de acero inoxidable, de espesor uniforme, provisto de una superficie superior lisa de dimensiones acordes con la superficie exterior de la base del recipiente,b) the manufacture of a steel disk stainless, uniform thickness, provided with a surface smooth top of dimensions consistent with the outer surface of the base of the container,

c) el calentamiento de un molde acorde con la geometría final del recipiente de cocina a una temperatura comprendida entre 200 y 300ºC.c) the heating of a mold according to the final geometry of the cooking vessel at a temperature between 200 and 300 ° C.

d) el calentamiento uniforme del disco de acero inoxidable a una temperatura comprendida entre 400 y 700ºC.,d) uniform heating of the steel disk stainless at a temperature between 400 and 700 ° C.,

e) el calentamiento uniforme de la totalidad o al menos de la base del recipiente de aluminio a una temperatura comprendida entre 300 y 450ºC.,e) uniform heating of all or at least from the base of the aluminum container at a temperature between 300 and 450 ° C.,

f) la introducción del disco de acero inoxidable y del recipiente calentados previamente en el molde también calentado previamente, de forma que las superficies planas y pulidas de la base del recipiente y del disco de acero inoxidable queden enfrentadas y superpuestas y,f) the introduction of the stainless steel disc and of the container previously heated in the mold also preheated, so that flat surfaces and polished stainless steel bowl and disc base face and overlap and,

g) la aplicación sobre el recipiente y el disco, por medio del molde, de una fuerza de compresión, mediante prensa hidráulica, prensa caída libre o rodillera, comprendida entre 600 y 5000 toneladas, durante un tiempo comprendido entre 0,1 y 10 segundos, en orden a conseguir una unión molecular permanente entre las superficies enfrentadas del disco de acero inoxidable y la base del recipiente de aluminio.g) the application on the container and the disk, by means of the mold, of a compression force, by press hydraulic, free fall press or kneepad, between 600 and 5000 tons, for a time between 0.1 and 10 seconds, in order to achieve a permanent molecular bond between the facing surfaces of the stainless steel disc and the base of the aluminum container.

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La aplicación de la fuerza de compresión indicada sobre el recipiente de aluminio y de la placa de acero inoxidable previamente calentadas a las temperaturas indicadas establece una unión molecular, permanente y de gran resistencia entre ambas piezas, no viéndose afectada esta unión por la temperatura alcanzada durante la utilización culinaria del recipiente obtenido, dado que esta temperatura de uso es muy inferior a las temperaturas de calentamiento previo utilizadas en el proceso de fabricación de la invención.The application of compression force indicated on the aluminum container and the steel plate stainless preheated at the indicated temperatures It establishes a molecular, permanent and high resistance union between both pieces, not being affected this union by the temperature reached during the culinary use of container obtained, since this use temperature is very lower than preheating temperatures used in The manufacturing process of the invention.

De otra parte el calentamiento a temperatura constante del molde empleado para aplicar la fuerza de compresión sobre el recipiente de aluminio y el disco de acero inoxidable, tiene la finalidad de impedir que las piezas calentadas previamente se enfríen excesivamente al entrar en contacto con el envase y consiguientemente impedir que su temperatura descienda hasta unos niveles en los que no se produciría la unión molecular de las mismas.On the other hand temperature heating constant of the mold used to apply the compression force on the aluminum bowl and the stainless steel disk, It is intended to prevent previously heated parts cool excessively upon contact with the container and consequently prevent its temperature from falling to about levels at which the molecular binding of the same.

Tal como ya se ha mencionado anteriormente la unión molecular obtenida entre el disco de acero inoxidable y el recipiente de aluminio, no requiere que el ninguna de las piezas a unir disponga de tetones o salientes capaces de establecer una unión mecánica lo que, además de simplificar su construcción, no requiere el posicionamiento de la base y del recipiente en una determinada posición relativa.As already mentioned above the molecular bond obtained between the stainless steel disk and the Aluminum container, does not require any of the pieces to join available studs or projections capable of establishing a mechanical union which, in addition to simplifying its construction, does not requires the positioning of the base and the container in a certain relative position.

Otra de las ventajas de este procedimiento consiste en que el disco de acero inoxidable es continuo y no presenta orificios o rebajes para el acoplamiento mecánico de tetones o salientes del recipiente de aluminio, por lo que el recipiente obtenido proporciona, durante su utilización en cocinas de inducción, un mayor rendimiento que los antecedentes citados.Another advantage of this procedure is that the stainless steel disc is continuous and not It has holes or recesses for the mechanical coupling of studs or protrusions of the aluminum container, so the Obtained container provides, during use in kitchens induction, higher performance than the background cited.

El utensilio obtenido con el procedimiento de la invención proporciona otras ventajas adicionales entre las que cabe mencionar: - que incrementa el campo magnético por cuanto toda la superficie del disco de acero inoxidable es de contacto, no como en casos anteriores donde dicha superficie se veía reducida por los orificios definidos en la pieza ferromagnética para el acoplamiento de los tetones del recipiente, - que la ser plana la superficie del disco impide la acumulación de suciedad que se produce habitualmente en los orificios o bordes de los orificios de los utensilios provistos de placas ferromagnéticas perforadas y, - que la vida útil del utensilio se ve aumentada por cuanto el fondo es más consistente.The utensil obtained with the procedure of the invention provides other additional advantages among which mention: - that increases the magnetic field because all the stainless steel disc surface is contact, not as in previous cases where said area was reduced by holes defined in the ferromagnetic part for coupling of the lugs of the container, - that the surface be the surface of the disc prevents the accumulation of dirt that usually occurs in the holes or edges of the holes in the utensils provided with perforated ferromagnetic plates and, - that life useful of the utensil is increased because the bottom is more consistent.

En una realización de la invención y especialmente en aquellos casos en los que el utensilios cuya base sea superior al ruedo máximo de inducción, se ha previsto que durante la fabricación del recipiente se conforme en torno a la superficie lisa de la base, destinada a recibir el disco de acero inoxidable, un regruesamiento de espesor adecuado para complementar el diámetro del mencionado disco de acero inoxidable.In an embodiment of the invention and especially in those cases in which the utensils whose base exceeds the maximum induction ring, it is expected that during manufacturing the container conforms around the smooth surface of the base, intended to receive the steel disk stainless, a thickening thickness suitable to complement the diameter of the mentioned stainless steel disc.

Descripción de las figurasDescription of the figures

Para complementar la descripción que se está realizando y con objeto de facilitar la comprensión de las características de la invención, se acompaña a la presente memoria descriptiva un juego de dibujos en los que, con carácter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that is being performing and in order to facilitate the understanding of characteristics of the invention, is attached herein descriptive a set of drawings in which, with character Illustrative and not limiting, the following has been represented:

- La figura 1 muestra una vista un despiece alineado de un ejemplo de realización del recipiente de aluminio y del disco de acero inoxidable a utilizar en el procedimiento de la invención para obtener un utensilio de cocina utilizable en cocinas de inducción, habiéndose representado dichos elementos seccionados por un plano vertical.- Figure 1 shows an exploded view aligned with an exemplary embodiment of the aluminum container and of the stainless steel disc to be used in the procedure of the invention to obtain a kitchen utensil usable in kitchens induction, said sectioned elements having been represented by a vertical plane.

- La figura 2 muestra esquemáticamente una fase del procedimiento en la que se introducen el recipiente y el disco previamente calentados en un molde también calentado previamente, habiéndose representado todos los elementos seccionados por un plano vertical.- Figure 2 schematically shows a phase of the procedure in which the container and the disc are inserted previously heated in a mold also preheated, having represented all the elements sectioned by a vertical plane

- La figura 3 muestra esquemáticamente una fase de procedimiento de la invención en la que aplica una fuerza de compresión al recipiente y al disco por medio del molde.- Figure 3 schematically shows a phase of the method of the invention in which a force of compression to the container and the disc by means of the mold.

- La figura 4 muestra una vista en alzado, seccionada por un plano vertical, del utensilio de cocina por el disco de acero inoxidable fijado de forma permanente, mediante unión molecular, a la superficie exterior de la base del recipiente.- Figure 4 shows an elevation view, sectioned by a vertical plane, of the kitchen utensil by the stainless steel disc fixed permanently, by molecular bond, to the outer surface of the base of the container.

- La figura 5 muestra una variante de realización del recipiente fabricado, en el que durante su fabricación se ha conformado en torno a la superficie lisa de la base, destinada a recibir el disco de acero inoxidable, un regruesamiento de espesor adecuado para complementar el diámetro del mencionado disco de acero inoxidable.- Figure 5 shows a variant of realization of the manufactured container, in which during its manufacturing has been shaped around the smooth surface of the base, intended to receive the stainless steel disc, a thickness thickening to complement the diameter of the  mentioned stainless steel disc.

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Realización preferente de la invenciónPreferred Embodiment of the Invention

En un ejemplo concreto de realización y de acuerdo con la invención, se fabrican inicialmente recipientes (1) de aluminio provistos de una base con una superficie (11) lisa y discos (2) de acero inoxidable de espesor uniforme, preferentemente de un espesor comprendido entre 0.5 y 0.8 milímetros, provistos de una superficie superior (21) lisa, de dimensiones acordes con la superficie exterior de la base del recipiente, tales como los representados individualmente en la figura 1.In a specific example of embodiment and of according to the invention, containers (1) are initially manufactured of aluminum provided with a base with a smooth surface (11) and stainless steel discs (2) of uniform thickness, preferably of a thickness between 0.5 and 0.8 millimeters, provided with a smooth upper surface (21), of dimensions consistent with the outer surface of the base of the container, such as individually represented in figure 1.

Para establecer la unión molecular entre un recipiente (1) y el correspondiente disco (2) se procede previamente a:To establish the molecular bond between a container (1) and the corresponding disk (2) proceed prior to:

- calentar un molde (31, 32), acorde con la geometría final del recipiente de cocina a obtener, a una temperatura comprendida entre 200 y 300ºC., preferentemente del orden de 250ºC.,- heat a mold (31, 32), according to the final geometry of the kitchen container to obtain, at a temperature between 200 and 300 ° C., preferably from order of 250 ° C.,

- calentar de modo uniforme el disco o de acero inoxidable a una temperatura comprendida entre 400 y 700ºC, preferentemente del orden de 600ºC. y,- uniformly heat the disc or steel stainless at a temperature between 400 and 700 ° C, preferably of the order of 600 ° C. Y,

- calentar de modo uniforme el recipiente de aluminio a una temperatura comprendida entre 300 y 450ºC., preferentemente del orden de 400ºC.- heat the container evenly aluminum at a temperature between 300 and 450 ° C., preferably of the order of 400 ° C.

A continuación se introducen el disco (2) de acero inoxidable y el recipiente (1) calentados a las temperaturas indicadas, en el molde (31, 32) también calentado previamente, de forma que las superficies (11, 21) de la base del recipiente (1) y del disco (2) de acero inoxidable queden enfrentadas y superpuestas, tal como se muestra esquemáticamente en la figura 2.Then the disk (2) of stainless steel and vessel (1) heated to temperatures indicated, in the mold (31, 32) also previously heated, of so that the surfaces (11, 21) of the base of the container (1) and of the stainless steel disc (2) are facing each other and superimposed, as shown schematically in the figure 2.

Finalmente se aplica al recipiente (1) y al disco (2), por medio del molde (31, 32), una fuerza de compresión comprendida entre 600 y 5000 toneladas, preferentemente de 800 toneladas en prensa de caída libre ó de 3000 toneladas en prensa hidráulica, durante un tiempo comprendido entre 0,1 y 10 segundos. En caso de utilizar una prensa de caída libre el tiempo de aplicación de la fuerza de compresión es del orden de 0,1 segundos y, en el caso de utilizar una prensa hidráulica es del orden de 6 segundos. Mediante esta compresión se establece una unión molecular permanente y de alta resistencia entre las superficies (21, 11) enfrentadas del disco (2) de acero inoxidable y de la base del recipiente (1) de aluminio.Finally it is applied to the container (1) and the disc (2), by means of the mold (31, 32), a compression force between 600 and 5000 tons, preferably 800 tons in free fall press or 3000 tons in press hydraulic, for a time between 0.1 and 10 seconds. In case of using a free fall press the time of application of the compression force is of the order of 0.1 seconds and, in the case of using a hydraulic press it is of the order of 6 seconds. Through this compression a molecular bond is established permanent and high strength between surfaces (21, 11) facing the disc (2) of stainless steel and the base of the aluminum container (1).

Una vez descrita suficientemente la naturaleza de la invención, así como un ejemplo de realización preferente, se hace constar a los efectos oportunos que los materiales, forma, tamaño y disposición de los elementos descritos podrán ser modificados, siempre y cuando ello no suponga una alteración de las características esenciales de la invención que se reivindican a continuación.Once nature is sufficiently described of the invention, as well as a preferred embodiment, for the appropriate purposes that the materials, form, size and arrangement of the elements described may be modified, as long as this does not imply an alteration of the essential features of the invention claimed in continuation.

Claims (2)

1. Procedimiento de fabricación de un utensilio de cocina apto para cocinas de inducción; siendo dicho utensilio del tipo de los que comprenden un recipiente de aluminio que incorpora en su base un disco de un material ferromagnético; caracterizado porque comprende:1. Procedure for manufacturing a kitchen utensil suitable for induction cookers; said utensil being of the type comprising an aluminum container that incorporates in its base a disc of a ferromagnetic material; characterized in that it comprises: a) la fabricación de un recipiente de aluminio provisto de una base con una superficie exterior lisa,a) the manufacture of an aluminum container provided with a base with a smooth outer surface, b) la fabricación de un disco de acero inoxidable provisto de una superficie superior lisa de dimensiones acordes con la superficie exterior de la base del recipiente,b) the manufacture of a steel disk stainless provided with a smooth top surface of dimensions according to the outer surface of the base of the container, c) el calentamiento de un molde acorde con la geometría final del recipiente de cocina a una temperatura comprendida entre 200 y 300ºC.,c) the heating of a mold according to the final geometry of the cooking vessel at a temperature between 200 and 300 ° C., d) el calentamiento uniforme del disco de acero inoxidable a una temperatura comprendida entre 400 y 700ºC.,d) uniform heating of the steel disk stainless at a temperature between 400 and 700 ° C., e) el calentamiento uniforme de la totalidad o al menos de la base del recipiente de aluminio a una temperatura comprendida entre 300 y 450ºC.,e) uniform heating of all or at least from the base of the aluminum container at a temperature between 300 and 450 ° C., f) la introducción del disco de acero inoxidable y del recipiente calentados previamente en el molde también calentado previamente de forma que las superficies planas y pulidas de la base del recipiente y del disco de acero inoxidable queden enfrentadas y superpuestas y,f) the introduction of the stainless steel disc and of the container previously heated in the mold also preheated so that flat and polished surfaces of the base of the vessel and the stainless steel disc remain facing and overlapping and, g) la aplicación sobre el recipiente (1) y el disco (2), por medio del molde (31, 32), de una fuerza de compresión comprendida entre 600 y 5000 toneladas, durante un tiempo comprendido entre 0,1 y 10 segundos en orden a conseguir una unión molecular permanente entre las superficies enfrentadas del disco de acero inoxidable y la base del recipiente de aluminio.g) the application on the container (1) and the disk (2), by means of the mold (31, 32), of a force of compression between 600 and 5000 tons, for a while between 0.1 and 10 seconds in order to achieve a union permanent molecular between the facing surfaces of the disk of stainless steel and the base of the aluminum container. 2. Procedimiento, según la reivindicación 1, caracterizado porque la fabricación del recipiente de aluminio mencionado en el punto a), comprende la conformación, en torno a la superficie lisa de la base destinada a recibir el disco de acero inoxidable, de un regruesamiento de espesor adecuado para complementar el diámetro del mencionado disco de acero inoxidable.2. Method according to claim 1, characterized in that the manufacture of the aluminum container mentioned in point a), comprises the formation, around the smooth surface of the base intended to receive the stainless steel disk, of a thickening of suitable thickness to complement the diameter of said stainless steel disc.
ES200930886A 2009-10-21 2009-10-21 MANUFACTURING PROCEDURE OF A KITCHEN UTENSIL SUITABLE FOR INDUCTION KITCHENS. Expired - Fee Related ES2333396B1 (en)

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CN112869532A (en) * 2019-11-30 2021-06-01 浙江鸿泰科技有限公司 Manufacturing process of pot with irregular groove on surface
CN113017399A (en) * 2021-03-08 2021-06-25 张庆军 Ancient casting workshop cast aluminum pot and processing technology thereof

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CN112869532A (en) * 2019-11-30 2021-06-01 浙江鸿泰科技有限公司 Manufacturing process of pot with irregular groove on surface
CN113017399A (en) * 2021-03-08 2021-06-25 张庆军 Ancient casting workshop cast aluminum pot and processing technology thereof

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