WO2020235776A1 - Cooking container for induction heating - Google Patents

Cooking container for induction heating Download PDF

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Publication number
WO2020235776A1
WO2020235776A1 PCT/KR2020/001821 KR2020001821W WO2020235776A1 WO 2020235776 A1 WO2020235776 A1 WO 2020235776A1 KR 2020001821 W KR2020001821 W KR 2020001821W WO 2020235776 A1 WO2020235776 A1 WO 2020235776A1
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WIPO (PCT)
Prior art keywords
stainless steel
induction heating
cooking container
copper
cooking
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PCT/KR2020/001821
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French (fr)
Korean (ko)
Inventor
박수진
Original Assignee
주식회사 한국클래드텍
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Publication of WO2020235776A1 publication Critical patent/WO2020235776A1/en

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    • 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
    • A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
    • A47J27/088—Pressure-cookers; Lids or locking devices specially adapted therefor adapted to high-frequency heating
    • 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
    • A47J27/02—Cooking-vessels with enlarged heating surfaces
    • A47J27/022—Cooking-vessels with enlarged heating surfaces with enlarged bottom
    • 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
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K13/00—Etching, surface-brightening or pickling compositions
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite

Definitions

  • the present invention relates to a cooking vessel for induction heating, and more particularly, a clad material of a four-layer structure formed in the order of stainless steel, aluminum, stainless steel, and copper, or a three-layer structure formed in the order of aluminum, stainless steel, and copper.
  • a cooking vessel is manufactured using a cladding agent, the copper layer constituting the bottom surface is partially removed so that it can be used not only in general heating devices but also in induction heating devices, and the outer surface of the cooking container is formed of copper. It relates to a cooking vessel for induction heating that can further enhance an aesthetic sense.
  • induction heating devices transfer energy to the material to be heated by electromagnetic induction from the electrode by the induction heating method, a kind of electric heating, and the material itself converts electrical energy into thermal energy, and the material to be heated is a conductor. Should be.
  • Such an induction heating device for example, is a cooking appliance that implements a direct heating method that generates heat by generating an electric vortex effect, which is an eddy current, at the bottom of the container when magnetic force is generated by applying a high-efficiency magnetic field line induction technology.
  • this induction stove has a problem in that only a container made of a suitable material must be used.
  • a container made of a suitable material For example, stainless steel 400 series or 200 series, iron casting containers or iron beomrang can be used as induction containers, but in the case of containers made of glass, copper, aluminum, stainless steel 300 series, etc., magnetic lines of force generated by the induction stove due to physical characteristics There is a problem that cannot be used because it does not accept and passes.
  • the present invention is to solve the problems of the prior art, as described above, when manufacturing a cooking vessel using a cladding material of a quadruple structure or a triple structure, general heating by partially removing the layer of copper material forming the bottom surface
  • An object thereof is to provide a cooking container for induction heating that can be used not only in a device but also in an induction heating device.
  • Another object of the present invention is to provide a cooking container for induction heating that can further enhance an aesthetic sense by forming an outer surface of a copper material when manufacturing an induction cooking container.
  • the cooking vessel for induction heating is a clad material of a four-layer structure formed in the order of austenitic stainless steel, aluminum, ferritic stainless steel, and copper material, or a triple structure formed in the order of aluminum, ferritic stainless steel, and copper material. It is manufactured using a clad material having a structure, wherein the outer bottom surface of the cooking vessel is formed to protrude the ferritic stainless steel by partially removing the copper material of the cladding material.
  • the present invention cooks using a clad material of a quadruple structure formed in the order of austenitic stainless steel, aluminum, ferritic stainless steel, and copper material, or a clad material of a triple structure formed in the order of aluminum, ferritic stainless steel and copper material.
  • the aesthetic sense can be further improved, and the manufacturing process can be simplified, and the price can be lowered while increasing the quality of the product.
  • FIG. 1 is a view showing a cross section of a cladding material having a quadruple structure according to an embodiment of the present invention.
  • FIG. 2 is a view showing a cross-section of a cooking vessel for induction heating manufactured using a cladding material of a quadruple structure shown in FIG. 1;
  • Figure 3 is a view showing a cross-section of a cladding material of a triple structure according to another embodiment of the present balgo.
  • FIG. 4 is a diagram showing a cross-section of a cooking vessel for induction heating manufactured using a cladding material having a triple structure shown in FIG. 3;
  • a cooking vessel was manufactured using a clad material of a quadruple structure or a clad material of a triple structure so that it can be used not only in general heating devices but also in induction heating devices, preferably stainless steel, aluminum, stainless steel, and copper. It is intended to implement a cooking vessel for induction heating in which a four-layered clad material formed in order is used, and in particular, the copper material forming the outer bottom surface of the cooking vessel is partially removed to allow stainless steel to protrude to the outside.
  • the cladding material 10 of the present invention is formed by forming each layer of four different materials. That is, it is made of an austenitic stainless steel 12 material that forms the inner surface of the cooking vessel 100 to be described later, and is made of aluminum 14 material under it, and a ferritic stainless steel 16 material is under it. It is composed of, and below it is composed of a copper (18) material forming the outer surface of the cooking vessel (100).
  • Each of the materials 12, 14, 16, 18 is made of a cladding material 10 by a cladding method, which is one of various bonding technologies, that is, a bonding method in which a skin material is mechanically or physically bonded to a base metal, and is a bonding method of There are used explosive impact bonding, electromagnetic impact bonding using electromagnetic repulsion, hot isostatic pressing, and mechanical bonding. Among these joining methods, rolling is the most economical and most widely applied method. In the present invention, a cladding material manufactured by various bonding methods is used.
  • FIG. 2 is a diagram showing the configuration of a cooking vessel 100 for induction heating manufactured using a cladding material 10 having a quadruple structure according to an embodiment of the present invention.
  • the cooking container 100 for induction heating according to the present invention is formed by a normal press using the cladding material 10 shown in FIG. 1, and the first circumferential layer 12a constituting the inner surface of the cooking container 100 ) And the first bottom layer (12b), the second circumferential layer (14a) and the second bottom layer (14b), the third circumferential layer (16a) and the third bottom layer (16b), and It is composed of 4 circumferential layer 18a and fourth bottom layer 18b in that order.
  • the outer bottom surface of the cooking container 100 is configured so that the cooking container 100 can be used not only in a general heating device, but also in an induction heating device (for example, an induction stove, etc.).
  • the layer of material was removed. Specifically, the material of the copper 18 of the clad material 10 shown in FIG. 1 was corroded by an etching operation so that the ferritic stainless steel 16 partially protruded to the outside. I did.
  • the etching operation is a conventional method, for example, by partially corroding the material of the copper 18 of the clad material 10 shown in FIG. 1 by the etching method disclosed in Patent Publication No. 10-1922802 The steel 16 was partially protruded.
  • the copper 18 material of the cladding material 10 when partially removing the copper 18 material of the cladding material 10, in addition to the etching method, the copper 18 material is formed by various methods such as a lithography method, a laser removal method, and an NC processing method. Can be partially removed. Among these methods, the present inventor has adopted the most economical etching method that requires less production and manufacturing costs.
  • the cooking container 100 as shown in FIG. 2 can be manufactured by partially removing the material of the copper 18 of the cladding material 10. That is, the first circumferential layer 12a and the first bottom layer 12b of the cooking vessel 100 are integrally formed of austenitic stainless steel 12, and in particular, it is preferable to be formed of SUS304 or SUS316. .
  • the second circumferential layer 14a and the second bottom layer 14b of the cooking vessel 100 are integrally formed of aluminum 14 material.
  • the third circumferential layer 16a and the third bottom layer 16b of the cooking vessel 100 are integrally formed of ferritic stainless steel 16, and in particular, they are preferably formed of SUS430 or SUS439.
  • the fourth circumferential layer 18a of the cooking vessel 100 is formed of a copper 18 material, and the fourth bottom layer 18b partially removes the copper 18 material as seen above to form the third bottom layer. A portion of (16b) is formed to protrude. At this time, it is preferable that the fourth circumferential layer 18a and the fourth bottom layer 18b are integrally molded.
  • the material of the copper 18 of the fourth bottom layer 18b is various methods, as suggested above, That is, it is partially removed by etching, lithography, laser, NC processing, and the like, and among them, it is most ideal to remove it by an etching method.
  • the cooking container 100 of the present invention made by the above method can be used not only in a general heating device, but also in an induction heating device.
  • the outer surface of the cooking container 100 is made of copper (18) material, so it has excellent thermal conductivity. There are good features of aesthetics (aesthetic sense).
  • the cladding material 50 having a triple structure is preferably made of an aluminum 52 material for forming the interior of the cooking vessel 200 shown in FIG.
  • a cladding material 50 having a three-layer structure composed of a material of copper 56 forming the outer surface of the cooking vessel 200 is used below it, and is composed of waste lite stainless steel 54 material.
  • the cooking vessel 200 of the triple structure shown in FIG. 4 is formed.
  • the ferritic stainless steel 54 is preferably formed of SUS430 or SUS439 as seen above.
  • the cooking container 200 formed of the cladding material 50 of the triple structure is the first circumferential layer 52a and the first bottom layer 52b of the cooking container 200 as shown in FIG. 4.
  • Silver is integrally formed of aluminum 52
  • the second circumferential layer 54a and the second bottom layer 54b of the cooking vessel 200 are integrally formed of ferritic stainless steel 54.
  • the third circumferential layer 56a of the cooking vessel 200 is formed of copper 56
  • the fourth bottom layer 56b partially removes the copper 56 material to form the second bottom layer ( 54b) is formed to protrude.
  • the fourth circumferential layer 18a and the fourth bottom layer 18b are integrally molded.
  • the material of the copper 56 of the third bottom layer 56b is various methods, as suggested above, That is, it is partially removed by etching, lithography, laser, NC processing, and the like, and among them, it is most ideal to remove it by an etching method.
  • the three-layered cooking container 200 manufactured by the above method can also be used not only in a general heating device, but also in an induction heating device, and in particular, the outer surface of the cooking container 200 is made of copper (56), so that the thermal conductivity This is an excellent and aesthetically pleasing advantage.
  • Patent Document 0001 Publication No. 10-2009-0128093 (Name of the invention: Induction container and its manufacturing method. Publication date: December 15, 2009)
  • Patent Document 0002 Registered Patent Publication No. 10-0756490 (Name of the invention: Induction container and its manufacturing method. Notification date: September 07, 2007)
  • Patent Document 0003 Registered Patent Publication No. 10-0764545 (Name of invention: cooking vessel for induction range and its manufacturing method. Announcement date: October 09, 2007)
  • Patent Document 0004 Publication No. 10-2012-0125440 (Name of the invention: Induction container and its manufacturing method. Publication date: November 15, 2012)
  • clad material 12 austenitic stainless steel

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Cookers (AREA)

Abstract

Provided is a cooking container for induction heating, wherein the cooking container is made of materials in a quadruple or triple clad structure so as to be used in an induction heating device as well as a general heating device. Preferably, the cooking container is made of materials formed in the order of stainless steel, aluminum, stainless steel, and copper material in the quadruple clad structure, or materials formed in the order of aluminum, stainless steel, and copper material in the triple clad structure. Particularly, the cooking container is configured such that the copper material forming the outer bottom surface of the cooking container is partially removed so as to make the stainless steel project outward.

Description

인덕션 가열용 조리용기Cooking container for induction heating
본 발명은 인덕션 가열용 조리용기에 관한 것으로서, 더욱 상세하게는 스테인리스강, 알루미늄, 스테인리스강, 동 재질 순으로 형성된 4층 구조의 클래드재 또는 알루미늄, 스테인리스강, 동 재질 순으로 형성된 3층 구조의 클래드제를 사용하여 조리용기를 제조할 때 바닥면을 구성하는 동 재질의 층을 부분적으로 제거함으로써 일반 가열장치 뿐만 아니라 인덕션 가열장치에서도 사용할 수 있도록 함은 물론 조리용기의 외면을 동 재질로 형성하여 미적 감각을 한층더 높일 수 있는 인덕션 가열용 조리용기에 관한 것이다.The present invention relates to a cooking vessel for induction heating, and more particularly, a clad material of a four-layer structure formed in the order of stainless steel, aluminum, stainless steel, and copper, or a three-layer structure formed in the order of aluminum, stainless steel, and copper. When a cooking vessel is manufactured using a cladding agent, the copper layer constituting the bottom surface is partially removed so that it can be used not only in general heating devices but also in induction heating devices, and the outer surface of the cooking container is formed of copper. It relates to a cooking vessel for induction heating that can further enhance an aesthetic sense.
통상적으로 인덕션 가열장치는 전기 가열의 일종인 유도가열방식에 의해서 피가열 재료에 대하여 전극에서 전자유도에 의해 에너지를 전달하고, 재료 자체가 전기 에너지를 열 에너지로 변환하는 것이며, 피가열 재료는 도체이어야 한다.In general, induction heating devices transfer energy to the material to be heated by electromagnetic induction from the electrode by the induction heating method, a kind of electric heating, and the material itself converts electrical energy into thermal energy, and the material to be heated is a conductor. Should be.
이러한 인덕션 가열장치는, 예를 들어 인덕션 렌지는 고효율의 자력선 유도기술을 응용한 것으로 자력이 발생되어 용기 바닥에 와전류인 전기소용돌이 효과가 일어나 열을 발생시키는 직접 가열방식을 구현한 조리 기구이다.Such an induction heating device, for example, is a cooking appliance that implements a direct heating method that generates heat by generating an electric vortex effect, which is an eddy current, at the bottom of the container when magnetic force is generated by applying a high-efficiency magnetic field line induction technology.
즉, 인덕션 렌지는 용기가 올려지는 상판 저부에 설치된 유도코일에 전류를 흘려보내면 유도코일에서 발생되는 자력선이 상판에 높인 용기의 바닥을 통과하면서 용기의 재질에 포함된 저항성분에 의해 와류 전류가 생성된다. 와류전류는 용기 자체만을 발열시켜 렌지의 상판은 달구어지지 않고 용기만 뜨거워져서 종래의 간접가열방식, 예를 들어 가스렌지, 버너 등의 가열 기구에 비해 높은 안전성과 경제성이 우수하고, 불꽃이 없으므로 화상의 위험이 없는 장점을 가지고 있다.That is, when the induction stove passes current through the induction coil installed at the bottom of the top plate on which the container is placed, the magnetic line of force generated from the induction coil passes through the bottom of the container raised on the top plate, and the eddy current is generated by the resistance component included in the material of the container. do. Eddy current heats only the container itself, so the top plate of the stove does not heat up, but only the container heats up, so it has high safety and economics compared to conventional indirect heating methods such as gas stoves and burners. It has the advantage of no risk.
그러나, 이러한 인덕션 렌지는 반드시 그에 알맞은 재질로 제조된 용기만을 사용하여야 하는 문제가 있다. 예컨데 스테인리스 400 계열 또는 200 계열이나 철로 된 주물용기 혹은 철범랑 등은 인덕션 용기로써 사용이 가능하나, 유리, 동, 알루미늄, 스테인리스 300 계열 등으로 제조된 용기의 경우에는 물리적 특성상 인덕션 렌지에서 발생되는 자력선을 받아들이지 못하고 통과시키기 때문에 사용이 불가능한 문제가 있다.However, this induction stove has a problem in that only a container made of a suitable material must be used. For example, stainless steel 400 series or 200 series, iron casting containers or iron beomrang can be used as induction containers, but in the case of containers made of glass, copper, aluminum, stainless steel 300 series, etc., magnetic lines of force generated by the induction stove due to physical characteristics There is a problem that cannot be used because it does not accept and passes.
한편, 근래에는 조리용기의 미적감각과 품질을 높이기 위하여 클래드 소재를 사용하여 통상 3중 구조의 조리용기(즉, 내면은 스테인리스, 중간은 알루미늄, 외면은 동으로 성형된 조리용기)가 판매되고 있는데, 이러한 조리용기는 인덕션 렌지용으로 사용할 수 없는 단점이 있다.On the other hand, in recent years, in order to enhance the aesthetic sense and quality of the cooking container, a cooking container with a three-layer structure (that is, a cooking container formed of stainless steel on the inside, aluminum in the middle, and copper on the outside) is being sold. , There is a disadvantage that these cooking containers cannot be used for induction stoves.
종래에는 이와 같은 단점을 해결하기 위해, 즉 인덕션 가열용 조리용기로 사용하기 위해 클래드재 조리용기의 바닥면에 알루미늄을 부착한 후 다시 열을 가해서 스테인리스를 부착시키든지 또는 바닥면에 강한 압력으로 스테인리스를 압착하게 되는데, 이는 조리용기의 제조공정이 복잡하고 제품 가격을 상승시킬 뿐만 아니라 조리용기의 미관상 좋지 않은 문제점이 있다.Conventionally, in order to solve this disadvantage, that is, to use it as a cooking container for induction heating, after attaching aluminum to the bottom of a clad cooking container, heat again to attach stainless steel, or stainless steel with strong pressure on the bottom surface. In this case, the manufacturing process of the cooking container is complicated, and the product price is increased, and there is a problem in terms of the aesthetics of the cooking container.
본 발명은 위와 같은 종래기술의 문제점을 해결하기 위한 것으로, 4중 구조 또는 3중 구조의 클래드재를 사용하여 조리용기를 제조할 때 바닥면을 형성하는 동 재질의 층을 부분적으로 제거하여 일반 가열장치 뿐만 아니라 인덕션 가열장치에서도 사용할 수 있도록 하는 인덕션 가열용 조리용기를 제공하는데 그 목적이 있다.The present invention is to solve the problems of the prior art, as described above, when manufacturing a cooking vessel using a cladding material of a quadruple structure or a triple structure, general heating by partially removing the layer of copper material forming the bottom surface An object thereof is to provide a cooking container for induction heating that can be used not only in a device but also in an induction heating device.
본 발명의 다른 목적은 인덕션 조리용기를 제조할 때 외면을 동 재질로 형성하여 미적 감각을 한층더 높일 수 있는 인덕션 가열용 조리용기를 제공함에 있다.Another object of the present invention is to provide a cooking container for induction heating that can further enhance an aesthetic sense by forming an outer surface of a copper material when manufacturing an induction cooking container.
본 발명에 따른 인덕션 가열용 조리용기는 오스테나이트계 스테인리스강, 알루미늄, 페라이트계 스테인리스강, 동 재질 순으로 형성된 4중 구조의 클래드재 또는 알루미늄, 페라이드계 스테인리스강, 동 재질 순으로 형성된 3중 구조의 클래드재를 사용하여 제조하되, 상기 조리용기의 외부 바닥면은 상기 클래드재의 동 재질을 부분적으로 제거하여 상기 페라이트계 스테인리스강이 돌출되도록 형성한 것을 특징으로 한다.The cooking vessel for induction heating according to the present invention is a clad material of a four-layer structure formed in the order of austenitic stainless steel, aluminum, ferritic stainless steel, and copper material, or a triple structure formed in the order of aluminum, ferritic stainless steel, and copper material. It is manufactured using a clad material having a structure, wherein the outer bottom surface of the cooking vessel is formed to protrude the ferritic stainless steel by partially removing the copper material of the cladding material.
본 발명은 오스테나이트계 스테인리스강, 알루미늄, 페라이트계 스테인리스강, 동 재질 순으로 형성된 4중 구조의 클래드재 또는 알루미늄, 페라이트계 스테인리스강, 동 재질 순으로 형성된 3중 구조의 클래드재를 사용하여 조리용기를 제조할 때, 조리용기의 바닥면을 구성하는 동 재질의 층을 부분적으로 제거함으로써 일반 가열장치 뿐만 아니라 인덕션 가열장치에서도 사용할 수 있는 장점이 있다.The present invention cooks using a clad material of a quadruple structure formed in the order of austenitic stainless steel, aluminum, ferritic stainless steel, and copper material, or a clad material of a triple structure formed in the order of aluminum, ferritic stainless steel and copper material. When manufacturing a container, there is an advantage that it can be used not only in a general heating device but also in an induction heating device by partially removing the layer of copper material constituting the bottom surface of the cooking container.
그리고, 본 발명은 조리용기의 외면을 동 재질로 형성함으로써 미적 감각을 한층더 높일 수 있으며, 또한 제조공정의 단순화를 구현하고 제품의 품질을 높이면서 가격을 낮출 수 있는 효과가 있다.In addition, according to the present invention, by forming the outer surface of the cooking container of the same material, the aesthetic sense can be further improved, and the manufacturing process can be simplified, and the price can be lowered while increasing the quality of the product.
도 1은 본 발명의 일 실시 예에 따른 4중 구조의 클래드재의 단면을 보여주고 있는 도면.1 is a view showing a cross section of a cladding material having a quadruple structure according to an embodiment of the present invention.
도 2는 상기 도 1에서 도시하고 있는 4중 구조의 클래드재를 사용하여 제조된 인덕션 가열용 조리용기의 단면을 보여주고 있는 도면.FIG. 2 is a view showing a cross-section of a cooking vessel for induction heating manufactured using a cladding material of a quadruple structure shown in FIG. 1;
도 3은 본 발며의 다른 실시 예에 따른 3중 구조의 클래드재의 단면을 보여주고 있는 도면.Figure 3 is a view showing a cross-section of a cladding material of a triple structure according to another embodiment of the present balgo.
도 4는 상기 도 3에서 도시하고 있는 3중 구조의 클래드재를 사용하여 제조된 인덕션 가열용 조리용기의 단면을 보여주고 있는 도면.FIG. 4 is a diagram showing a cross-section of a cooking vessel for induction heating manufactured using a cladding material having a triple structure shown in FIG. 3;
이하 본 발명의 바람직한 실시 형태를 구체적으로 설명하면 다음과 같다. 후술 될 상세한 설명에서는 상술한 기술적 과제를 이루기 위해 본 발명에 있어 대표적인 실시 예를 제시할 것이다. 그리고 본 발명으로 제시될 수 있는 다른 실시 예들은 본 발명의 구성에서 설명으로 대체한다.Hereinafter, preferred embodiments of the present invention will be described in detail. In the detailed description to be described later, representative embodiments in the present invention will be presented in order to achieve the above-described technical problem. And other embodiments that may be presented by the present invention are replaced by descriptions in the configuration of the present invention.
본 발명에서는 일반 가열장치 뿐만 아니라 인덕션 가열장치에서도 사용할 수 있도록 4중 구조의 클래드재 또는 3중 구조의 클래드재를 사용하여 조리용기를 제조하였으며, 바람직하게는 스테인리스강, 알루미늄, 스테인리스강, 동 재질 순으로 형성된 4중 구조의 클래드재를 사용하고, 특히 조리용기의 외부 바닥면을 형성하는 동 재질을 부분적으로 제거하여 스테인리스강이 외부로 돌출되도록 구성한 인덕션 가열용 조리용기를 구현하고자 한다.In the present invention, a cooking vessel was manufactured using a clad material of a quadruple structure or a clad material of a triple structure so that it can be used not only in general heating devices but also in induction heating devices, preferably stainless steel, aluminum, stainless steel, and copper. It is intended to implement a cooking vessel for induction heating in which a four-layered clad material formed in order is used, and in particular, the copper material forming the outer bottom surface of the cooking vessel is partially removed to allow stainless steel to protrude to the outside.
도 1은 본 발명에 구현하고자 하는 인덕션 가열용 조리용기를 제조할 때 사용되는 4중 구조의 클래드재(10)의 구성을 보여주고 있는 도면이다. 상기 도 1을 참조하면, 본 발명의 클래드재(10)는 서로 다른 4개의 재질로 각 층을 이루면서 형성된다. 즉, 후술하는 조리용기(100)의 내면을 형성하는 오스테나이트계 스테인리스강(12) 재질로 구성하고, 그 아래에는 알루미늄(14) 재질로 구성하고, 그 아래에는 페라이트계 스테인리스강(16) 재질로 구성하고, 그 아래에는 조리용기(100)의 외면을 형성하는 동(18) 재질로 구성한다.1 is a view showing the configuration of a cladding material 10 having a quadruple structure used when manufacturing a cooking vessel for induction heating to be implemented in the present invention. Referring to FIG. 1, the cladding material 10 of the present invention is formed by forming each layer of four different materials. That is, it is made of an austenitic stainless steel 12 material that forms the inner surface of the cooking vessel 100 to be described later, and is made of aluminum 14 material under it, and a ferritic stainless steel 16 material is under it. It is composed of, and below it is composed of a copper (18) material forming the outer surface of the cooking vessel (100).
상기 각 재질(12,14,16,18)은 다양한 접합기술 중 한 분야인 클래딩 방법으로 클래드재(10)로 제조되는데, 즉 모재 금속에 피재를 기계적 또는 물리적으로 접합시키는 접합 방법으로, 폭발력을 이용한 압접(explosive impact bonding), 전자기적 반발력을 이용한 압접(electromagnetic impact bonding), 열간 정수압 가공(hot isostatic pressing), 압연(mechanical bonding) 등이 있다. 이들 접합방법 중 압연이 가장 경제적이며, 가장 널리 응용되는 방법이다. 본 발명에서는 다양한 접합 방법으로 제조된 클래드재를 사용한다.Each of the materials 12, 14, 16, 18 is made of a cladding material 10 by a cladding method, which is one of various bonding technologies, that is, a bonding method in which a skin material is mechanically or physically bonded to a base metal, and is a bonding method of There are used explosive impact bonding, electromagnetic impact bonding using electromagnetic repulsion, hot isostatic pressing, and mechanical bonding. Among these joining methods, rolling is the most economical and most widely applied method. In the present invention, a cladding material manufactured by various bonding methods is used.
도 2는 본 발명의 일 실시 예에 따른 4중 구조의 클래드재(10)를 사용하여 제조된 인덕션 가열용 조리용기(100)의 구성을 보여주고 있는 도면이다. 본 발명에 따른 인덕션 가열용 조리용기(100)는 도 1에 도시한 클래드재(10)를 사용하여 통상 프레스 작업으로 성형되며, 조리용기(100)의 안쪽면을 구성하는 제1 둘레면층(12a)과 제1 바닥면층(12b), 이를 기준으로 바깥쪽 순으로 제2 둘레면층(14a)과 제2 바닥면층(14b), 제3 둘레면층(16a)과 제3 바닥면층(16b), 제4 둘레면층(18a)과 제4 바닥면층(18b) 순으로 구성된다.2 is a diagram showing the configuration of a cooking vessel 100 for induction heating manufactured using a cladding material 10 having a quadruple structure according to an embodiment of the present invention. The cooking container 100 for induction heating according to the present invention is formed by a normal press using the cladding material 10 shown in FIG. 1, and the first circumferential layer 12a constituting the inner surface of the cooking container 100 ) And the first bottom layer (12b), the second circumferential layer (14a) and the second bottom layer (14b), the third circumferential layer (16a) and the third bottom layer (16b), and It is composed of 4 circumferential layer 18a and fourth bottom layer 18b in that order.
상기 도 2를 참조하면, 본 발명에서는 조리용기(100)를 일반 가열장치 뿐만 아니라 인덕션 가열장치(일 예로, 인덕션 렌지 등)에서도 사용할 수 있도록 조리용기(100)의 바깥쪽 바닥면을 구성하는 동 재질로 된 층을 제거하였는데, 구체적으로는 도 1에 도시한 클래드재(10)의 동(18) 재질을 에칭(etching) 작업으로 부식시켜 부분적으로 페라이트계 스테인리스강(16)이 외부로 돌출되도록 하였다.Referring to FIG. 2, in the present invention, the outer bottom surface of the cooking container 100 is configured so that the cooking container 100 can be used not only in a general heating device, but also in an induction heating device (for example, an induction stove, etc.). The layer of material was removed. Specifically, the material of the copper 18 of the clad material 10 shown in FIG. 1 was corroded by an etching operation so that the ferritic stainless steel 16 partially protruded to the outside. I did.
이때, 에칭 작업은 통상적인 방법으로서, 예를 들어 등록특허공보 제10-1922802호에 개시된 에칭 방법으로 도 1에 도시한 클래드재(10)의 동(18) 재질을 부분적으로 부식시킴으로써 페라이트계 스테인리스강(16)을 부분적으로 돌출시켰다.At this time, the etching operation is a conventional method, for example, by partially corroding the material of the copper 18 of the clad material 10 shown in FIG. 1 by the etching method disclosed in Patent Publication No. 10-1922802 The steel 16 was partially protruded.
한편, 본 발명에서는 클래드재(10)의 동(18) 재질을 부분적으로 제거할 때, 에칭 방법 이외에 리소그래피(lithography) 방법, 레이저 제거방법, NC 가공방법 등과 같이 다양한 방법으로 동(18) 재질을 부분적으로 제거할 수 있다. 본 발명자는 이들 방법들 중에서 생산 제조 비용이 적게 소요되는 가장 경제적인 에칭 방법을 채택하였다.On the other hand, in the present invention, when partially removing the copper 18 material of the cladding material 10, in addition to the etching method, the copper 18 material is formed by various methods such as a lithography method, a laser removal method, and an NC processing method. Can be partially removed. Among these methods, the present inventor has adopted the most economical etching method that requires less production and manufacturing costs.
이와 같이, 본 발명에서는 클래드재(10)의 동(18) 재질을 부분적으로 제거함으로써 도 2와 같은 조리용기(100)를 제조할 수 있다. 즉, 조리용기(100)의 제1 둘레면층(12a)과 제1 바닥면층(12b)은 오스테나이트계 스테인레스강(12) 재질로 일체형으로 형성되며, 특히 SUS304 또는 SUS316 재질로 성형됨이 바람직하다. As described above, in the present invention, the cooking container 100 as shown in FIG. 2 can be manufactured by partially removing the material of the copper 18 of the cladding material 10. That is, the first circumferential layer 12a and the first bottom layer 12b of the cooking vessel 100 are integrally formed of austenitic stainless steel 12, and in particular, it is preferable to be formed of SUS304 or SUS316. .
상기 조리용기(100)의 제2 둘레면층(14a)과 제2 바닥면층(14b)은 알루미늄(14) 재질로 일체형으로 형성된다.The second circumferential layer 14a and the second bottom layer 14b of the cooking vessel 100 are integrally formed of aluminum 14 material.
상기 조리용기(100)의 제3 둘레면층(16a)과 제3 바닥면층(16b)은 페라이트계 스테인리스강(16) 재질로 일체형으로 형성되는데, 특히 SUS430 또는 SUS439 재질로 성형됨이 바람직하다.The third circumferential layer 16a and the third bottom layer 16b of the cooking vessel 100 are integrally formed of ferritic stainless steel 16, and in particular, they are preferably formed of SUS430 or SUS439.
상기 조리용기(100)의 제4 둘레면층(18a)은 동(18) 재질로 성형되고, 제4 바닥면층(18b)은 위에서 보았듯이 동(18) 재질을 부분적으로 제거하여 상기 제3 바닥면층(16b)의 일부분이 돌출되도록 형성된다. 이때, 상기 제4 둘레면층(18a)과 제4 바닥면층(18b)은 일체형으로 성형됨이 바람직하다, 또한, 상기 제4 바닥면층(18b)의 동(18) 재질은 위에서 제시하였듯이 다양한 방법, 즉 에칭, 리소그래피, 레이저, NC 가공 등의 방법으로 부분적으로 제거되는데, 그 중에서도 에칭 방법으로 제거하는 것이 가장 이상적이다.The fourth circumferential layer 18a of the cooking vessel 100 is formed of a copper 18 material, and the fourth bottom layer 18b partially removes the copper 18 material as seen above to form the third bottom layer. A portion of (16b) is formed to protrude. At this time, it is preferable that the fourth circumferential layer 18a and the fourth bottom layer 18b are integrally molded. In addition, the material of the copper 18 of the fourth bottom layer 18b is various methods, as suggested above, That is, it is partially removed by etching, lithography, laser, NC processing, and the like, and among them, it is most ideal to remove it by an etching method.
상기와 같은 방법으로 만들어진 본 발명의 조리용기(100)는 일반 가열장치 뿐만 아니라 인덕션 가열장치에서도 사용 가능하며, 특히 조리용기(100)의 바깥쪽면이 동(18) 재질로 형성되어 있어 열전도율이 뛰어나고 미관상(미적 감각) 좋은 특징이 있다.The cooking container 100 of the present invention made by the above method can be used not only in a general heating device, but also in an induction heating device. In particular, the outer surface of the cooking container 100 is made of copper (18) material, so it has excellent thermal conductivity. There are good features of aesthetics (aesthetic sense).
한편, 본 발명에서는 도 3에 도시한 바와 같이, 3중 구조의 클래드재(50)를, 바람직하게는 도 4에 도시한 조리용기(200)의 내부를 형성하기 위한 알루미늄(52) 재질로 구성하고, 그 아래에는 폐라이트계 스테인리스강(54) 재질로 구성하고, 그 아래에는 조리용기(200)의 외면을 형성하는 동(56) 재질로 구성한 3층 구조로 된 클래드재(50)를 사용하여 도 4에 도시한 3중 구조의 조리용기(200)를 성형한다. 이때, 페라이트계 스테인리스강(54)은 위에서 보았듯이 SUS430 또는 SUS439 재질로 성형됨이 바람직하다.On the other hand, in the present invention, as shown in FIG. 3, the cladding material 50 having a triple structure is preferably made of an aluminum 52 material for forming the interior of the cooking vessel 200 shown in FIG. And, a cladding material 50 having a three-layer structure composed of a material of copper 56 forming the outer surface of the cooking vessel 200 is used below it, and is composed of waste lite stainless steel 54 material. Thus, the cooking vessel 200 of the triple structure shown in FIG. 4 is formed. At this time, the ferritic stainless steel 54 is preferably formed of SUS430 or SUS439 as seen above.
즉, 상기 3중 구조의 클래드재(50)로 성형된 조리용기(200)는 도 4에 도시한 바와 같이, 조리용기(200)의 제1 둘레면층(52a)과 제1 바닥면층(52b)은 알루미늄(52) 재질로 일체형으로 형성되고, 상기 조리용기(200)의 제2 둘레면층(54a)과 제2 바닥면층(54b)은 페라이트계 스테인리스강(54) 재질로 일체형으로 형성된다. 또한, 상기 조리용기(200)의 제3 둘레면층(56a)은 동(56) 재질로 성형되고, 제4 바닥면층(56b)은 동(56) 재질을 부분적으로 제거하여 상기 제2 바닥면층(54b)의 일부분이 돌출되도록 형성된다. 이때, 상기 제4 둘레면층(18a)과 제4 바닥면층(18b)은 일체형으로 성형됨이 바람직하다, 또한, 상기 제3 바닥면층(56b)의 동(56) 재질은 위에서 제시하였듯이 다양한 방법, 즉 에칭, 리소그래피, 레이저, NC 가공 등의 방법으로 부분적으로 제거되는데, 그 중에서도 에칭 방법으로 제거하는 것이 가장 이상적이다.That is, the cooking container 200 formed of the cladding material 50 of the triple structure is the first circumferential layer 52a and the first bottom layer 52b of the cooking container 200 as shown in FIG. 4. Silver is integrally formed of aluminum 52, and the second circumferential layer 54a and the second bottom layer 54b of the cooking vessel 200 are integrally formed of ferritic stainless steel 54. In addition, the third circumferential layer 56a of the cooking vessel 200 is formed of copper 56, and the fourth bottom layer 56b partially removes the copper 56 material to form the second bottom layer ( 54b) is formed to protrude. In this case, it is preferable that the fourth circumferential layer 18a and the fourth bottom layer 18b are integrally molded. In addition, the material of the copper 56 of the third bottom layer 56b is various methods, as suggested above, That is, it is partially removed by etching, lithography, laser, NC processing, and the like, and among them, it is most ideal to remove it by an etching method.
상기와 같은 방법으로 제조된 3중 구조의 조리용기(200) 역시 일반 가열장치 뿐만 아니라 인덕션 가열장치에서도 사용 가능하며, 특히 조리용기(200)의 바깥쪽면이 동(56) 재질로 형성되어 있어 열전도율이 뛰어나고 미적 감각이 뛰어난 장점이 있다.The three-layered cooking container 200 manufactured by the above method can also be used not only in a general heating device, but also in an induction heating device, and in particular, the outer surface of the cooking container 200 is made of copper (56), so that the thermal conductivity This is an excellent and aesthetically pleasing advantage.
[선행기술문헌][Prior technical literature]
[특허문헌][Patent Literature]
(특허문헌 0001) 공개특허공보 제10-2009-0128093호(발명의 명칭: 인덕션 용기 및 그 제조방법. 공개일자: 2009년 12월 15일)(Patent Document 0001) Publication No. 10-2009-0128093 (Name of the invention: Induction container and its manufacturing method. Publication date: December 15, 2009)
(특허문헌 0002) 등록특허공보 제10-0756490호(발명의 명칭: 인덕션 용기 및 그 제조방법. 공고일자: 2007년 09월 07일)(Patent Document 0002) Registered Patent Publication No. 10-0756490 (Name of the invention: Induction container and its manufacturing method. Notification date: September 07, 2007)
(특허문헌 0003) 등록특허공보 제10-0764545호(발명의 명칭: 인덕션레인지용 조리용기 및 그 제작방법. 공고일자: 2007년 10월 09일)(Patent Document 0003) Registered Patent Publication No. 10-0764545 (Name of invention: cooking vessel for induction range and its manufacturing method. Announcement date: October 09, 2007)
(특허문헌 0004) 공개특허공보 제10-2012-0125440호(발명의 명칭: 인덕션 용기 및 그 제조방법. 공개일자: 2012년 11월 15일)(Patent Document 0004) Publication No. 10-2012-0125440 (Name of the invention: Induction container and its manufacturing method. Publication date: November 15, 2012)
[부호의 설명][Explanation of code]
10, 50: 클래드재 12: 오스테나이트계 스테인리스강10, 50: clad material 12: austenitic stainless steel
14, 52: 알루미늄 16, 54: 페라이트계 스테인리스강14, 52: aluminum 16, 54: ferritic stainless steel
18, 56: 동 100, 200: 조리용기18, 56: copper 100, 200: cooking container
12a: 제1 둘레면층 12b: 제1 바닥면층12a: first circumferential layer 12b: first bottom layer
14a: 제2 둘레면층 14b: 제2 바닥면층14a: second circumferential layer 14b: second bottom layer
16a: 제3 둘레면층 16b: 제3 바닥면층16a: third circumferential layer 16b: third bottom layer
18a: 제4 둘레면층 18b: 제4 바닥면층18a: fourth circumferential layer 18b: fourth bottom layer
[대표도][Representative Map]
도 2Figure 2

Claims (3)

  1. 인덕션 가열용 조리용기에 있어서,In the cooking vessel for induction heating,
    오스테나이트계 스테인리스강, 알루미늄, 페라이트계 스테인리스강, 동 재질 순으로 형성된 4중 구조의 클래드재 또는 알루미늄, 페라이트계 스테인리스강, 동 재질 순으로 형성된 3중 구조의 클래드재를 사용하여 조리용기를 제조하되;Cooking vessels are manufactured using a four-layered clad material formed in the order of austenitic stainless steel, aluminum, ferritic stainless steel, and copper material, or a three-layered clad material formed in the order of aluminum, ferritic stainless steel, and copper material. But;
    상기 조리용기의 외부 바닥면은 상기 클래드재의 동 재질을 부분적으로 제거하여 상기 페라이트계 스테인리스강이 돌출되도록 형성한 것을 특징으로 하는 인덕션 가열용 조리용기.A cooking vessel for induction heating, characterized in that the outer bottom surface of the cooking vessel is formed so that the ferritic stainless steel protrudes by partially removing the copper material of the cladding material.
  2. 제1항에 있어서,The method of claim 1,
    상기 클래드재의 동 재질을 에칭 작업으로 부분적으로 제거하는 것을 특징으로 하는 인덕션 가열용 조리용기.Cooking vessel for induction heating, characterized in that the copper material of the clad material is partially removed by an etching operation.
  3. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2,
    상기 오스테나이트계 스테인리스강은 SUS304 재질 또는 SUS316 재질이며, 상기 페라이트계 스테인리스강은 SUS430 재질 또는 SUS439인 것을 특징으로 하는 인덕션 가열용 조리용기.The austenitic stainless steel is made of SUS304 or SUS316, and the ferritic stainless steel is made of SUS430 or SUS439.
PCT/KR2020/001821 2019-05-17 2020-02-10 Cooking container for induction heating WO2020235776A1 (en)

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