WO2012102553A2 - Moule de fabrication de récipient de cuisson de type à coulée par gravité et procédé de fabrication de récipient de cuisson au moyen d'un moule de fabrication de récipient de cuisson de type à coulée par gravité - Google Patents

Moule de fabrication de récipient de cuisson de type à coulée par gravité et procédé de fabrication de récipient de cuisson au moyen d'un moule de fabrication de récipient de cuisson de type à coulée par gravité Download PDF

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Publication number
WO2012102553A2
WO2012102553A2 PCT/KR2012/000608 KR2012000608W WO2012102553A2 WO 2012102553 A2 WO2012102553 A2 WO 2012102553A2 KR 2012000608 W KR2012000608 W KR 2012000608W WO 2012102553 A2 WO2012102553 A2 WO 2012102553A2
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WO
WIPO (PCT)
Prior art keywords
cooking vessel
mold
magnetic
manufacturing
heating plate
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Ceased
Application number
PCT/KR2012/000608
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English (en)
Korean (ko)
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WO2012102553A3 (fr
Inventor
박문원
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Individual
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Individual
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Publication date
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Publication of WO2012102553A2 publication Critical patent/WO2012102553A2/fr
Publication of WO2012102553A3 publication Critical patent/WO2012102553A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/0045—Casting in, on, or around objects which form part of the product household utensils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/22—Moulds for peculiarly-shaped castings
    • B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/24—Accessories for locating and holding cores or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/02—Use of electric or magnetic effects
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets

Definitions

  • the present invention relates to a cooking vessel manufacturing mold and a cooking vessel manufacturing method, and more particularly, to a gravity casting cooking vessel manufacturing mold and a cooking vessel manufacturing method using the gravity casting cooking vessel manufacturing mold.
  • cooking vessels are used to cook food by induction heating and / or flame heating, such as rice cookers, pots, and frying pans.
  • an electronic cooker such as an induction range used for induction heating has a coil for generating a magnetic field when a high voltage is applied to the induction heating, and the induction stove induces a magnetic field when a high voltage is applied to the coil.
  • the metal body in the region affected by the magnetic field is heated. Since the electronic cooker does not generate any flame or harmful gas, there is no risk of fire, and there is no carbon monoxide that is inevitably generated when gas is used as a heat source. have.
  • the electronic cooker does not cause burns even when the grille is touched while the container is being heated.There is no spark, so there is no risk of fire or explosion, and the burner does not burn when body parts come into contact with the grille while the power is supplied. It has a merit and is being used a lot recently.
  • the cooking vessel used in the electronic cooking device such as an induction stove is limited to a magnetic cooking container having a high magnetic field sensitivity.
  • the magnetic material such as iron contained in the cooking container is heavier than the nonmagnetic material such as aluminum or aluminum alloy. Has a fundamental disadvantage.
  • a cooking container made of a nonmagnetic material such as aluminum or an aluminum alloy has excellent moldability and thermal conductivity, and thus is widely used for flame heating cooking.
  • nonmagnetic cooking containers have a low magnetic field sensitivity and cannot be heated by an induction stove.
  • a cooking vessel manufactured by spraying a magnetic body or forming a plating of a magnetic body on a bottom surface of a nonmagnetic container body has been proposed.
  • a cooking container has a problem that the sprayed or plated magnetic material is easily peeled off.
  • a cooking vessel prepared by drilling a hole in a magnetic heating plate and having a projection fitted into the hole in a nonmagnetic container body corresponding thereto, and then pressing them is proposed.
  • Such conventional cooking vessels are more durable than conventional cooking vessels, but peeling phenomena due to the difference in shrinkage between different metals still exist.
  • Patent No. 611646 (March 11, 2006), registered with the Korean Intellectual Property Office, discloses that a metal plate body (magnetic heating plate) exposed to the bottom of the cooking vessel is formed during the casting molding of the cooking vessel.
  • Korean Patent No. 611646 discloses a plurality of non-ferrous metal flakes in a mold during the manufacturing process to expose a metal plate (magnetic heating plate) to the bottom surface of the cooking vessel, and the metal plate body to be horizontal on the non-ferrous metal flakes (Magnetic heating plate) must go through the step of placing the manufacturing method is cumbersome, if the level is not properly made, there is a problem that a defect occurs.
  • the Republic of Korea Patent No. 611646 has a problem that the design of the metal plate (magnetic heating plate) is followed as the metal plate is simply placed on the mold by the non-ferrous metal flakes.
  • the non-ferrous metal flakes must be supported at a predetermined height on the mold by using the non-ferrous metal flakes as a medium.
  • a restriction such as that the cross section must be configured in the form of "a” as shown in Figure 6 of the Republic of Korea Patent No. 611646.
  • Republic of Korea Patent Publication No. 2004-23120 (published on March 18, 2004) in the die casting mold consisting of a moving mold and a fixed mold, the fixed mold is to form a magnet in the recessed portion to allow the magnetic metal plate to be adhesively fixed 'Die-casting mold for forming kitchen cooking utensils' has been proposed.
  • Republic of Korea Patent No. 893105 has been proposed a 'mold apparatus for forming a cooking vessel for an induction stove to attach a heating plate by a magnetic force by installing a number of magnets on the bottom of the upper mold.
  • Korean Patent Laid-Open Publication No. 2004-23120 and Korean Patent Registration No. 893105 have a structure in which a permanent magnet is installed in a mold to attach a magnetic metal plate or a heating plate, so that the magnetic force of the magnet decreases during mass production over a long period of time. It has a fundamental problem of being lost.
  • the alnico series permanent magnet or samarium cobalt (SmCo) series of permanent magnets are applied to prevent magnetic extinction at high temperature. In case of prolonged use, demagnetization and loss of magnetism are essential.
  • the present invention was made to solve the general problems of the existing method of manufacturing a cooking vessel
  • the problem to be solved by the present invention is to attach the magnetic heating plate to the upper mold using an electromagnet and a magnetic medium that does not lose the magnetic force even at high temperature to improve the durability by preventing the magnetic force is reduced or extinguished even during mass production for a long time
  • the present invention provides a method for manufacturing a cooking vessel using a gravity-casting cooking container manufacturing mold and a gravity-casting cooking container manufacturing mold.
  • Another problem to be solved by the present invention is to produce the bottom surface of the cooking vessel by the semi-solid method by performing the electromagnetic stirring by alternately applying the power to a plurality of electromagnet modules in the reaction high section of the molten metal surface state
  • the present invention provides a method for manufacturing a cooking vessel using a gravity-casting cooking container and a method for manufacturing a gravity-casting cooking container which can be expected to improve the thermal conductivity and thereby improve the thermal conductivity.
  • the cooking vessel manufacturing mold for manufacturing the cooking vessel by gravity casting method is composed of the upper mold provided with the molten metal inlet and the lower mold installed magnetic heating plate,
  • the upper mold is provided with a plurality of magnetic media for attaching the magnetic heating plate to the inside of the upper mold, an electromagnet module coupled to each of the magnetic media is installed outside the upper mold, the electromagnet module supplies power Gravity casting cooking container manufacturing mold is characterized in that it is electrically connected to the control box.
  • the magnetic medium is a magnetic metal rod, one end of which is installed in the upper mold in a vertical insertion shape, the other end of which protrudes out of the upper mold, and the electromagnet module protrudes out of the upper mold.
  • the bobbin inserted into the bobbin and the coil wound around the bobbin, the installation position of the magnetic medium can be arranged to correspond to the position range in which the magnetic heating plate is attached so that the magnetic heating plate is attached to the lower mold.
  • the magnetic heating plate by supplying power to each of the electromagnet modules through the control box in the state of combining the upper mold with a plurality of magnetic media connected to the electromagnet module and the control box for supplying power to the electromagnet module. Attaching to the magnetic medium; And
  • Demolding the cooking vessel from the upper and lower molds It is implemented to include.
  • the time for alternately applying power to the electromagnet module may be performed from the time of injecting the non-ferrous metal molten metal to the reaction high section of the non-ferrous metal molten metal.
  • the method for manufacturing a cooking vessel using the gravity-casting cooking vessel manufacturing mold and the gravity-casting cooking vessel manufacturing mold according to the present invention is a magnetic force even when used for a long time by attaching a magnetic heating plate to the upper mold through an electromagnet module and a magnetic medium.
  • an advantage that can prevent degradation and magnetic extinction in the present invention, by applying a plurality of electromagnet modules alternately in the reaction high section of the molten metal to perform electromagnetic agitation, the bottom portion of the cooking vessel can be manufactured by the semi-solid method to improve the surface state and thus It can be expected to improve the thermal conductivity according to.
  • Figure 1 is a side cross-sectional view for explaining the overall configuration of the gravity-casting cooking vessel manufacturing mold according to the present invention.
  • Figure 2 is a configuration diagram for explaining the electromagnet module and control box installed in the upper mold in the gravity-casting cooking vessel manufacturing mold according to the present invention.
  • FIG 3 is a side cross-sectional view for explaining a state in which the upper and lower molds are separated in the gravity casting cooking vessel manufacturing mold according to the present invention.
  • FIG. 4 is a side cross-sectional view for explaining a state in which the upper and lower molds are molded in the gravity-casting cooking container manufacturing mold according to the present invention.
  • FIG. 5 is a side cross-sectional view for explaining a state in which the magnetic heating plate is attached to the magnetic medium installed in the upper mold in the gravity casting cooking container manufacturing mold according to the present invention.
  • FIG. 6 is a side cross-sectional view for explaining a state in which molten metal is injected in the gravity casting cooking container manufacturing mold according to the present invention.
  • Figure 7 is a bottom perspective view for explaining the cooking vessel manufactured by the gravity-casting cooking vessel manufacturing mold according to the present invention.
  • cooking container 21 cavity core
  • the cooking vessel manufacturing mold to which the present invention is applied may be defined as a manufacturing mold applied to the gravity casting formula, which is a method of filling the empty space of the mold using gravity casting formula, for example, the fluidity of the molten metal, and a low pressure casting formula. Note that it is different from manufacturing mold or pressure casting (die casting method) manufacturing mold.
  • the gravity casting cooking container manufacturing mold (1) of the present invention is a lower mold (3), the magnetic heating plate 4 is installed, and the upper mold (2) is provided with a molten metal inlet (23)
  • the upper mold 2 further includes a magnetic medium 24, an electromagnet module 25, and a control box 26.
  • Gravity casting manufacturing mold (1) of the present invention is largely classified into an upper mold (2) and a lower mold (3), typically the upper mold (2) is provided with a cavity core (21) and molten metal inlet (23)
  • the upper core 22, the lower mold 3 is composed of a stripper 31 and the insert core (32).
  • the lower mold (3) is a fixed mold
  • the upper mold (2) is a moving mold is connected to a separate moving means (not shown in the figure.)
  • the magnetic medium 24 is provided in a plurality of upper core 22 constituting the upper mold (2), for example, the upper mold (2) at predetermined intervals.
  • the magnetic medium 24 is a magnetic metal rod made of SUS440 or other alloy material containing iron, which is magnetic, and is installed in a vertical insertion form on the upper mold.
  • the upper core 22 of the upper mold The magnetic medium can be installed in an interference fit type (inserted with the upper core in a heated state) by providing a vertical hole, or a screw thread can be provided in the vertical hole and a screw thread can be installed in the magnetic medium to be screwed. have.
  • the magnetic medium 24 may be arranged on the outer periphery of the molten metal inlet, a plurality, preferably four to six on the upper core 22 of the upper mold (2), the upper mold (2) 4 ⁇ 10 can be installed according to the size, the installation position is the position where the magnetic heating plate (4) is placed so that the magnetic heating plate (4) is installed in the lower mold (3) Are arranged within a range corresponding to
  • the other end has a configuration in which the other end protrudes (may be bent at a predetermined angle) at a predetermined length from the upper side of the upper mold (2: upper core 22).
  • the electromagnet module 25 is electrically connected to each of the magnetic media 24 protruding outward from the upper side of the upper mold 2.
  • the electromagnet module 25 is configured to include a bobbin 251 inserted into the magnetic medium 24 and a coil 252 wound around the bobbin 251 and connected to an external power source.
  • the control box 26 is installed at a place separate from the upper and lower molds 2 and 3, for example, a place that is easy for the operator to operate, and the control box 26 is a coil of the electromagnet module 25.
  • the control box 26 supplies power to the coils 252 of the electromagnet module 25, and supplies power to the coils 252 of all the electromagnet modules 25 for a predetermined time, and then each electromagnet module.
  • a control circuit (not shown in the figure) programmed to supply power alternately with (25) is incorporated.
  • the control circuit of the control box 26 may further include a timer to supply or alternately supply power to the electromagnet module 25 for a predetermined time.
  • the magnetic heating plate 4 seated on the upper surface of the insert core 32 constituting the lower mold 3, for example, the lower mold 3, is a thin metal plate material made of magnetic material, and has heat resistance and high temperature corrosion resistance.
  • An excellent iron plate or an aluminum plated steel sheet can be used, and preferably stainless steel such as SUS430, SUS410S, ASTM TP 409, or the like can be used. That is, ferritic stainless steel that is ferromagnetic in stainless steel can be used.
  • the magnetic heating plate 4 is formed with a plurality of long holes 41, that is, a plurality of long holes 41 that is filled with aluminum to improve the bonding force with the bottom surface of the container, in the present invention, the magnetic heating plate 4 is As the magnetic medium 24 is fixed to the upper mold 2, various forms of the magnetic heating plate 4 or the number of holes may be applied.
  • the manufacturing method of the present invention is implemented including a magnetic heating plate mounting step, magnetic heating plate attachment step, casting step, demolding step.
  • the magnetic heating plate 4 is seated on the upper surface of the insert core 32 of the lower mold 3.
  • the magnetic heating plate 4 may be seated in the center of the insert core 32, and a mounting means such as a separate jig may be used to mount the magnetic heating plate in place. (See FIG. 3).
  • the magnetic heating plate 4 is attached to the upper mold (2) to the lower mold (3) on which the magnetic heating plate (4) is seated as described above, but the upper mold (2) is connected to the electromagnet module (25) Since the magnetic medium 24 and the control box 26 for supplying power to the electromagnet module 25 is provided, the upper and lower molds (2, 3) in the combined state through the control box 26 The magnetic heating plate 4 is fixed to the upper core 22 of the upper mold 2 by supplying power to all the electromagnet modules 25 to attach the magnetic heating plate 4 to the magnetic medium 24. (See FIGS. 4 and 5.)
  • the casting step is performed by alternately applying power to each electromagnet module 25 for a predetermined time while injecting a non-ferrous metal molten metal (such as aluminum molten metal) into the molded upper and lower molds (2,3).
  • a non-ferrous metal molten metal such as aluminum molten metal
  • the cooking vessel 5 is cast so that the magnetic heating plate 4 is exposed to the bottom surface (see FIG. 6).
  • the time of alternately applying power to the electromagnet module 25 may be performed from the time of injecting the non-ferrous metal molten metal to the reaction high section of the non-ferrous metal molten metal, which is 1/2 of the total casting time.
  • the alternating power supply of the electromagnet module 25 performed by the control circuit of the control box 26 as described above may be regular or irregular.
  • the form of alternating power to the four electromagnet modules for example, "1 off / 2, 3, 4 on", “2 off / 1, 3, 4 on”, “3 off / 1, 2, 4 times ", or a regular form, such as randomly supplying power to one or two electromagnet modules, the rest may be an irregular form that does not supply power.
  • the magnetic medium 24 is electromagnetized to generate a magnetic field, and at the same time, a minute vibration (60 Hz) )) Is generated, which causes electromagnetic stirring of the molten solid state of the reaction.
  • the bottom surface of the cooking vessel is cast by a semi solid (SSF (semi solid forged) method) as electromagnetic stirring is performed through the magnetic medium 24.
  • SSF semi solid forged
  • the macrostructure of the solute atom is formed by forming the spherical primary particles and the liquid surrounding the primary crystal instead of the coarse dendritic structure that appears in the ordinary cast product. Since the metal structure is minimized, the bottom surface of the cooking vessel can obtain the effect of improving the surface texture state and thus the thermal conductivity. In other words, by improving the surface condition and surface texture of the bottom of the cooking vessel, high thermal conductivity can be obtained, thereby reducing cooking time, and improving the surface structure, and thus, the coating lasts for a long time. have.
  • the demolding step demolds the cooking vessel 5 from the upper and lower molds 2 and 3. This is implemented by releasing the upper mold 2 from the lower mold 3 and then demolding the cooking vessel 5 of the lower mold 3, that is, the insert core 32.
  • the cooking vessel 5 manufactured as described above has a structure in which the magnetic heating plate 4 is exposed to the bottom surface as shown in FIG. 7, as well as heating by magnetic field induction, as well as flame heating. Even in the case of use, the thermal conductivity can be improved by improving the texture of the bottom surface as described above.
  • the manufacturing method according to the present invention implemented as described above by attaching the magnetic heating plate 4 to the upper mold (2) using the electromagnet module 25 and the magnetic medium 24, the magnetic force is not deteriorated or extinct continuously It has the advantage that can be used as, by implementing the semi-solid method through the electromagnetic stirring in the reaction high section can improve the physical properties of the bottom surface of the cooking vessel to obtain a high thermal conductivity and processability.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Power Engineering (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)
  • Continuous Casting (AREA)

Abstract

L'invention concerne un moule de fabrication de récipient de cuisson de type à coulée par gravité et un procédé de fabrication d'un récipient de cuisson au moyen d'un moule de fabrication de récipient de cuisson de type à coulée par gravité. Le procédé de fabrication du récipient de cuisson comprend les étapes suivantes : le placement d'une plaque chauffante magnétique sur un moule inférieur ; la fixation de ladite plaque chauffante magnétique sur des supports magnétiques par une fourniture d'énergie à chaque module d'électroaimant par le biais d'un boîtier de commande, un moule supérieur étant assemblé audit moule inférieur, le moule supérieur contenant la pluralité de supports magnétiques raccordés aux modules d'électroaimant et au boîtier de commande qui fournit de l'énergie auxdits modules d'électroaimant ; la coulée d'un récipient de cuisson de sorte que ladite plaque chauffante magnétique soit exposée à la surface inférieure par le biais d'une procédure d'agitation électromagnétique par la fourniture alternative d'énergie à chacun desdits modules d'électroaimant pendant une durée prédéterminée alors qu'un métal en fusion non ferreux est injecté dans lesdits moules supérieur et inférieur assemblés ; et le démoulage du récipient de cuisson desdits moules supérieur et inférieur.
PCT/KR2012/000608 2011-01-28 2012-01-25 Moule de fabrication de récipient de cuisson de type à coulée par gravité et procédé de fabrication de récipient de cuisson au moyen d'un moule de fabrication de récipient de cuisson de type à coulée par gravité Ceased WO2012102553A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2011-0009103 2011-01-28
KR1020110009103A KR101092702B1 (ko) 2011-01-28 2011-01-28 중력주조식 조리용기 제조금형 및 이 중력주조식 조리용기 제조금형을 이용한 조리용기 제조방법

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WO2012102553A2 true WO2012102553A2 (fr) 2012-08-02
WO2012102553A3 WO2012102553A3 (fr) 2012-11-01

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KR101428640B1 (ko) 2012-08-24 2014-08-13 한국생산기술연구원 중력주조식 조리용기 제조금형 및 이를 이용한 조리용기 제조방법

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KR200429069Y1 (ko) * 2006-07-25 2006-10-17 주식회사 에이아이씨 조리용기
KR100893105B1 (ko) 2007-09-21 2009-04-10 유로프리시젼 주식회사 인덕션 렌지용 조리용기 성형용 금형장치
KR101002364B1 (ko) * 2008-06-10 2010-12-17 (주)드림셰프 인덕션 용기 및 그 제조방법

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