JP2000079064A - Induction heating cooking container, and forming method thereof - Google Patents
Induction heating cooking container, and forming method thereofInfo
- Publication number
- JP2000079064A JP2000079064A JP25083698A JP25083698A JP2000079064A JP 2000079064 A JP2000079064 A JP 2000079064A JP 25083698 A JP25083698 A JP 25083698A JP 25083698 A JP25083698 A JP 25083698A JP 2000079064 A JP2000079064 A JP 2000079064A
- Authority
- JP
- Japan
- Prior art keywords
- spraying
- heat
- coating
- resistant material
- electromagnetic cooking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 19
- 238000010411 cooking Methods 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 10
- 230000006698 induction Effects 0.000 title description 4
- 238000000576 coating method Methods 0.000 claims abstract description 30
- 239000011248 coating agent Substances 0.000 claims abstract description 29
- 239000011247 coating layer Substances 0.000 claims abstract description 28
- 239000010410 layer Substances 0.000 claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 21
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 13
- 239000011701 zinc Substances 0.000 claims abstract description 13
- 238000005498 polishing Methods 0.000 claims abstract description 11
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 5
- 238000005507 spraying Methods 0.000 claims description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 239000003779 heat-resistant material Substances 0.000 claims description 18
- 238000007751 thermal spraying Methods 0.000 claims description 14
- 229910045601 alloy Inorganic materials 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 238000005422 blasting Methods 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 4
- 239000011819 refractory material Substances 0.000 claims description 2
- 230000002349 favourable effect Effects 0.000 abstract description 4
- 229910000640 Fe alloy Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 6
- 239000011737 fluorine Substances 0.000 description 6
- 229910052731 fluorine Inorganic materials 0.000 description 6
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 230000003746 surface roughness Effects 0.000 description 5
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 229920002312 polyamide-imide Polymers 0.000 description 3
- 239000004962 Polyamide-imide Substances 0.000 description 2
- 239000004695 Polyether sulfone Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000007610 electrostatic coating method Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
Landscapes
- Cookers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、誘導加熱式炊飯
器、電磁調理器等の誘導加熱調理に利用される電磁調理
容器及びその形成方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic cooking container used for induction heating cooking such as an induction heating rice cooker and an electromagnetic cooker, and a method of forming the same.
【０００２】[0002]
【従来の技術】従来、電磁調理容器として、アルミニウ
ム又はアルミニウム合金からなる容器本体の内面にフッ
素樹脂被膜層を形成すると共に、容器本体の外面に溶射
により金属発熱層を形成し、この金属発熱層を無機塗料
等の耐熱保護膜で被覆したものが公知である（特開平８
─２０６００４号公報参照）。2. Description of the Related Art Conventionally, as an electromagnetic cooking container, a fluorine resin coating layer is formed on the inner surface of a container body made of aluminum or an aluminum alloy, and a metal heating layer is formed on the outer surface of the container body by thermal spraying. Coated with a heat-resistant protective film such as an inorganic paint (Japanese Patent Laid-Open No.
No. 206004).
【０００３】[0003]
【発明が解決しようとする課題】ところで、前記電磁調
理容器では、誘導電流により金属発熱層を十分に発熱さ
せるために、この金属発熱層に所定の厚さ（５００〜６
００μｍ）が要求される。しかし、溶射によってこのよ
うに厚肉の金属発熱層を形成した場合、その表面粗さが
大きくなることは避けられない。この場合、耐熱保護膜
で被覆したとしても、好ましい外観を得ることができな
い。また、金属発熱層を研磨するにしても、溶射してい
ない外面と同様な滑らかな表面粗さに仕上げるには、時
間及びコスト面で問題がある。By the way, in the electromagnetic cooking container, a predetermined thickness (500 to 6) is required for the metal heating layer in order to sufficiently generate heat by the induction current.
00 μm) is required. However, when such a thick metal heating layer is formed by thermal spraying, it is inevitable that the surface roughness increases. In this case, even if it is covered with a heat-resistant protective film, a favorable appearance cannot be obtained. In addition, even if the metal heat generating layer is polished, there is a problem in terms of time and cost in order to achieve a smooth surface roughness similar to the outer surface that is not thermally sprayed.
【０００４】そこで、本発明は、溶射により金属発熱層
を形成する場合であっても、簡単かつ安価に外観の優れ
た電磁調理容器及びその形成方法を提供することを課題
とする。Accordingly, an object of the present invention is to provide a simple and inexpensive electromagnetic cooking container having excellent appearance even when a metal heating layer is formed by thermal spraying, and a method of forming the same.
【０００５】[0005]
【課題を解決するための手段】本発明は、前記課題を解
決するための手段として、電磁調理容器を、アルミニウ
ム又はアルミニウム合金からなる容器本体の外面に、鉄
系合金とアルミニウム又は亜鉛とを順次溶射した後、溶
射領域に研磨を施してなる金属発熱層と、少なくとも金
属発熱層を被覆する耐熱被膜層とを備えた構成としたも
のである。According to the present invention, as a means for solving the above-mentioned problems, an electromagnetic cooking vessel is provided by sequentially placing an iron-based alloy and aluminum or zinc on the outer surface of a vessel body made of aluminum or an aluminum alloy. After the thermal spraying, a metal heat generating layer is formed by polishing the sprayed area, and a heat-resistant coating layer covering at least the metal heat generating layer.
【０００６】この構成により、溶射後に研磨を施すの
で、表面粗さが小さくて平滑になり、外観の優れたもの
となる。[0006] With this configuration, since the polishing is performed after the thermal spraying, the surface roughness is small and smooth, and the appearance is excellent.
【０００７】前記耐熱被膜層は、耐熱材料を１０ｋｇ／
ｃｍ2以下、好ましくは、２.５〜３.５ｋｇ／ｃｍ2の高
圧で吹き付けることにより形成される被膜層と、耐熱材
料を該被膜層を形成する際の吹付け空気圧よりも小さい
１ｋｇ／ｃｍ2以下、好ましくは、０.１〜０.３ｋｇ／
ｃｍ2の低圧で吹き付けることにより前記被膜層の表面
に凹凸模様を形成する被膜突部とで構成すると、好まし
い外観の耐熱被膜層を形成することができる点で好まし
い。The heat-resistant coating layer is made of a heat-resistant material of 10 kg /
cm 2 or less, preferably, a coating layer formed by spraying at high pressure 2.5～3.5Kg / cm 2, less 1 kg / cm than spraying air pressure at the time of the refractory material forming the coating-layer 2 or less, preferably 0.1 to 0.3 kg /
It is preferable to form the heat-resistant coating layer having a favorable appearance by forming the coating layer with a coating projection that forms a concavo-convex pattern on the surface of the coating layer by spraying at a low pressure of 2 cm 2 .
【０００８】また、本発明は、前記課題を解決するため
の手段として、電磁調理容器の形成方法を、容器本体の
外面をブラスト加工するブラスト工程と、ブラスト加工
した領域に鉄系合金を溶射する第一溶射工程と、鉄系合
金を溶射した領域にアルミニウム又は亜鉛を溶射する第
二溶射工程と、溶射領域を研磨する研磨工程と、溶射領
域を耐熱材料で被覆する被覆工程とで被膜を形成するよ
うにしている。[0008] In order to solve the above-mentioned problems, the present invention provides a method for forming an electromagnetic cooking container, comprising: a blasting step of blasting an outer surface of a container body; and spraying an iron-based alloy on the blasted region. A first spraying step, a second spraying step of spraying aluminum or zinc on the area sprayed with the iron-based alloy, a polishing step of polishing the sprayed area, and a coating step of coating the sprayed area with a heat-resistant material to form a coating I am trying to do it.
【０００９】前記被覆工程は、耐熱材料を１０ｋｇ／ｃ
ｍ2以下、好ましくは、２.５〜３.５ｋｇ／ｃｍ2の高圧
で吹き付ける第一被覆工程と、耐熱材料を該第一被覆工
程での吹付け空気圧よりも小さい１ｋｇ／ｃｍ2以下、
好ましくは、０.１〜０.３ｋｇ／ｃｍ2の低圧で吹き付
ける第二被覆工程とで行うようにすると、良好な外観形
状を得ることができる点で好ましい。In the coating step, the heat-resistant material is added at 10 kg / c.
a first coating step of spraying at a high pressure of 2.5 m / m 2 or less, preferably 2.5 to 3.5 kg / cm 2, and a pressure of 1 kg / cm 2 or less, which is smaller than the blowing air pressure of the heat-resistant material in the first coating step;
Preferably, the second coating step of spraying at a low pressure of 0.1 to 0.3 kg / cm 2 is preferable in that a good external appearance can be obtained.
【００１０】さらに、前記第二被覆工程では、第一被覆
工程に比べて溶剤含有率の小さい耐熱材料を使用する
と、より一層良好な外観形状を得ることができる点で好
ましい。Further, in the second coating step, it is preferable to use a heat-resistant material having a lower solvent content than in the first coating step, since a better appearance can be obtained.
【００１１】[0011]
【発明の実施の形態】以下、本発明に係る実施形態を添
付図面に従って説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１２】図１は、本実施形態に係る電磁調理容器の
断面図である。この電磁調理容器は、容器本体１の外面
に金属発熱層２と耐熱被膜層３を順次形成すると共に、
容器本体１の内面にフッ素被膜層４を形成したものであ
る。FIG. 1 is a sectional view of an electromagnetic cooking container according to the present embodiment. In this electromagnetic cooking container, a metal heating layer 2 and a heat-resistant coating layer 3 are sequentially formed on the outer surface of a container body 1, and
The container body 1 has a fluorine coating layer 4 formed on the inner surface thereof.
【００１３】前記電磁調理容器は、次のようにして形成
する。The electromagnetic cooking container is formed as follows.
【００１４】まず、アルミニウム又はアルミニウム合金
を深絞り加工により有底筒状とすることにより容器本体
１を形成する。この容器本体１は、弱アルカリ脱脂液又
はメチレンクロライド等で脱脂する。また、外面の底部
分をブラスト処理する。ブラスト処理では、粒度が＃１
６〜＃３６のアルミナ系研削材を使用し、平均面粗度が
１０〜１５μｍの表面を形成する。First, the container body 1 is formed by deep-drawing aluminum or aluminum alloy into a cylindrical shape with a bottom. The container body 1 is degreased with a weak alkaline degreasing solution or methylene chloride. Also, the bottom portion of the outer surface is blasted. In blast processing, the granularity is # 1
A surface having an average surface roughness of 10 to 15 μm is formed using an alumina-based abrasive of 6 to # 36.
【００１５】そして、図２（ａ）に示すように、ブラス
ト処理した領域を溶射することにより金属発熱層２を形
成する。溶射は、鉄系合金で行う第一溶射工程と、アル
ミニウム又は亜鉛で行う第二溶射工程とで行う。Then, as shown in FIG. 2A, a metal heating layer 2 is formed by spraying the blasted area. The thermal spraying is performed by a first thermal spraying step performed with an iron-based alloy and a second thermal spraying step performed with aluminum or zinc.
【００１６】第一溶射工程では、鉄系合金として軟鋼線
材（ＪＩＳＧ─３５０５）を使用し、アーク電圧を２５
〜３０Ｖとして、厚さが４５０〜５００μｍとなるまで
行う。この場合、溶射部分の厚みは、重量換算により測
定する。なお、第一溶射工程での使用材料は、ステンレ
ス（ＳＵＳ４１０，４３０）、耐酸化性鋼線等であって
もよい。In the first thermal spraying step, a mild steel wire (JISG # 3505) is used as the iron-based alloy, and the arc voltage is reduced to 25%.
The operation is performed until the thickness becomes 450 to 500 μm. In this case, the thickness of the sprayed portion is measured by weight conversion. The material used in the first thermal spraying step may be stainless steel (SUS410, 430), an oxidation-resistant steel wire, or the like.
【００１７】第二溶射工程では、亜鉛を使用し、前記第
一溶射工程と同様な条件下で、亜鉛自身の厚さが５０〜
７０μｍとなり、前記軟鋼線材を合わせた合計の厚さが
５００〜５５０μｍとなるまで行うことにより金属発熱
層２を形成する。この厚さにより、金属発熱層２に誘導
電流を発生させると、十分に発熱することになる。な
お、第二溶射工程での使用材料は、アルミニウムであっ
てもよい。In the second thermal spraying step, zinc is used, and under the same conditions as in the first thermal spraying step, the thickness of the zinc itself is 50 to 50%.
The metal heating layer 2 is formed by performing the heat treatment until the total thickness including the mild steel wire becomes 500 to 550 μm. With this thickness, when an induced current is generated in the metal heat generating layer 2, sufficient heat is generated. The material used in the second thermal spraying step may be aluminum.
【００１８】続いて、粗さ＃８０〜＃１２０の研磨材に
より金属発熱層２を研磨する。この研磨では、容器本体
に軟鋼線材のみならず、軟鋼線材よりも軟質な亜鉛をも
溶射して被溶射面を主に亜鉛溶射層としているため、研
磨しやすく、従って非溶射面ほどではないが、図２
（ｂ）に示すように研磨面を滑らかとして所望の外観を
得ることができる。Subsequently, the metal heating layer 2 is polished with an abrasive having a roughness of # 80 to # 120. In this polishing, not only mild steel wire but also softer zinc than mild steel wire is sprayed on the container body and the sprayed surface is mainly a zinc sprayed layer, so it is easy to grind, so it is not as much as the non-sprayed surface. , FIG. 2
As shown in (b), a desired appearance can be obtained by smoothing the polished surface.
【００１９】次いで、容器本体１の外面全体を、粗さ＃
１００〜＃１２０の研削材によりブラスト処理する。そ
して、ブラスト処理後は、エアブローにより付着した研
削材を除去する。Next, the entire outer surface of the container body 1 is
Blasting is performed with abrasives of 100 to # 120. Then, after the blast processing, the abrasive material attached by air blow is removed.
【００２０】その後、金属発熱層２を耐熱材料で被覆す
ることにより図２（ｃ）に示すように耐熱被膜層３を形
成する。耐熱被膜層３の被膜層の形成は、エアスプレー
ガンを使用して１０ｋｇ／ｃｍ2以下（本実施形態で
は、２.５〜３.５ｋｇ／ｃｍ2）の高圧の空気圧で吹き
付けることにより厚さが約２０μｍとなるまで行う。な
お、使用可能な材料は２００℃以上の融点を有する耐熱
材料であり、例えば、次のような組成のシリコン樹脂材
料が使用できる。Thereafter, the metal heat generating layer 2 is coated with a heat resistant material to form a heat resistant coating layer 3 as shown in FIG. 2 (c). Formation of the coating layer of the heat-resistant coating layer 3 uses an air spray gun 10 kg / cm 2 or less (in the present embodiment, 2.5~3.5kg / cm 2) thick by spraying with high pressure air pressure of Is about 20 μm. The usable material is a heat-resistant material having a melting point of 200 ° C. or more. For example, a silicon resin material having the following composition can be used.
【００２１】[0021]
【表１】 [Table 1]
【００２２】そして、常温で数分間放置し、又は、７０
〜８０℃の雰囲気中で２〜３分間乾燥させた後、前記シ
リコン樹脂材料又はそれよりも溶剤含有率の小さい材料
で再度被覆処理を施して被膜突部を形成する。この場
合、空気圧は前述よりも小さい１０ｋｇ／ｃｍ2以下
（本実施形態では、０.１〜０.３ｋｇ／ｃｍ2）の低圧
の空気圧で、エアスプレーガンのノズルを全開とする。
これにより、容器本体の外面全体を微細な凹凸を有する
ものとすることが可能となる。そこで、乾燥炉により２
５０℃で１５分間焼成することにより図２（ｄ）に示す
ように微細な凹凸模様のある耐熱被膜層３が完成する。Then, it is left at room temperature for several minutes, or
After drying for 2 to 3 minutes in an atmosphere of ８０80 ° C., a coating process is performed again with the silicon resin material or a material having a lower solvent content than that, to form a coating protrusion. In this case, air pressure (in the present embodiment, between 0.1 and 0.3 kg / cm 2) less 10 kg / cm 2 or less than the aforementioned low pressure air pressure to fully open the nozzle of the air spray gun.
This makes it possible to make the entire outer surface of the container body have fine irregularities. Therefore, 2
By baking at 50 ° C. for 15 minutes, a heat-resistant coating layer 3 having a fine uneven pattern as shown in FIG. 2D is completed.
【００２３】最後に、容器本体１の内面にフッ素コーテ
ィングを行うことによりフッ素被膜層４を形成する。Finally, a fluorine coating layer 4 is formed by coating the inner surface of the container body 1 with fluorine.
【００２４】フッ素コーティングでは、マスキング治具
により容器本体１の外面を覆った状態で、その内面全体
にブラスト処理を行う。ブラスト処理は、吸引式ブラス
トマシンを使用し、例えば、粒度が＃１００〜＃１２０
のアルミナ系研削材を３〜４ｋｇ／ｃｍ2の空気圧で吹
き付ける。そして、フッ素樹脂系プライマー塗料を厚さ
が１０〜１２μｍとなるまで塗布する。塗料には、例え
ば、ＰＦＡ（４フッ化エチレン・パーフロロ・アルキル
ビニルエーテル共重合樹脂）のディスパージョンを主成
分とし、ＰＥＳ（ポリエーテルサルフォン）、ＰＡ（ポ
リアミド）、ＰＡＩ（ポリアミドイミド）等の耐熱樹脂
をバインダーとしたものを使用する。そして、１２０か
ら１５０℃の雰囲気中で１０から１５分間乾燥する。In the fluorine coating, the entire inner surface is blasted while the outer surface of the container body 1 is covered with a masking jig. The blasting process uses a suction-type blasting machine.
Is sprayed with an air pressure of 3 to 4 kg / cm 2 . Then, a fluororesin primer paint is applied until the thickness becomes 10 to 12 μm. The coating material contains, for example, a dispersion of PFA (polytetrafluoroethylene / perfluoro / alkyl vinyl ether copolymer resin) as a main component, and a heat resistant material such as PES (polyether sulfone), PA (polyamide), and PAI (polyamide imide). Use resin as binder. Then, it is dried in an atmosphere at 120 to 150 ° C. for 10 to 15 minutes.
【００２５】次に、水位線の印刷を行う。インキの組成
は、プライマー塗料に使用されている樹脂を主成分と
し、酸化チタンを主成分とした白色顔料を含有したイン
キをパッド印刷する。Next, the water line is printed. The composition of the ink is pad-printed with an ink containing a white pigment whose main component is the resin used for the primer paint and whose main component is titanium oxide.
【００２６】その後、平均粒径約１０μｍ程度のＰＦＡ
粉体を静電塗装方式により厚さが３５〜５０μｍとなる
まで行う。塗装後は、３８０〜４００℃の炉内で２０分
間焼成することによりフッ素被膜層４が完成する。Thereafter, PFA having an average particle size of about 10 μm
The powder is applied by an electrostatic coating method until the thickness becomes 35 to 50 μm. After the coating, the coating is baked in a furnace at 380 to 400 ° C. for 20 minutes to complete the fluorine coating layer 4.
【００２７】このようにして完成した電磁調理容器で
は、金属発熱層２を、鉄系合金のみならず、亜鉛を溶射
することにより形成している。したがって、研磨作業で
は、主に亜鉛を溶射した軟らかい部分を研磨できるの
で、研磨面の面粗度を小さく抑えた平滑なものとするこ
とが可能である。また、耐熱被膜層３の形成を２段階に
分けて行うことにより、溶射面と非溶射面との間に違和
感のない微細な凹凸模様を有する被膜層を得ることがで
きる。In the electromagnetic cooking container thus completed, the metal heating layer 2 is formed by spraying zinc as well as an iron-based alloy. Therefore, in the polishing operation, since a soft portion mainly sprayed with zinc can be polished, it is possible to make the polished surface smooth with a small surface roughness. Further, by forming the heat-resistant coating layer 3 in two stages, it is possible to obtain a coating layer having a fine uneven pattern without a sense of incongruity between the sprayed surface and the non-sprayed surface.
【００２８】[0028]
【発明の効果】以上の説明から明らかなように、本発明
に係る電磁調理容器によれば、金属発熱層を、鉄系合金
とアルミニウム又は亜鉛とを順次溶射した後、研磨を施
すことにより形成するようにしたので、均質な好ましい
外観を得ることが可能である。As is apparent from the above description, according to the electromagnetic cooking container of the present invention, the metal heat generating layer is formed by sequentially spraying an iron-based alloy and aluminum or zinc, and then performing polishing. Therefore, it is possible to obtain a uniform and favorable appearance.
【００２９】また、耐熱被膜層の形成を、耐熱材料の吹
付け空気圧の相違する２段階に分けて行うようにしたの
で、溶射面と非溶射面との間に違和感のない微細な凹凸
模様を形成することが可能である。Further, since the formation of the heat-resistant coating layer is performed in two stages in which the blowing air pressure of the heat-resistant material is different, a fine uneven pattern without a sense of incongruity is formed between the sprayed surface and the non-sprayed surface. It is possible to form.
【００３０】さらに、溶剤含有率の小さい耐熱材料を吹
付けることにより凹凸模様を形成するようにしたので、
より一層この凹凸模様を粗大なものとすることも可能と
なる。Further, since a heat-resistant material having a small solvent content is sprayed to form an uneven pattern,
It is also possible to make this uneven pattern coarser.
【図１】 本実施形態に係る電磁調理容器の断面図であ
る。FIG. 1 is a sectional view of an electromagnetic cooking container according to the present embodiment.
【図２】 図１の金属発熱層及び耐熱被膜層を形成する
工程を示す容器本体の部分断面図である。FIG. 2 is a partial cross-sectional view of the container body showing a step of forming a metal heating layer and a heat-resistant coating layer of FIG.
１…容器本体 ２…金属発熱層 ３…耐熱被膜層 DESCRIPTION OF SYMBOLS 1 ... Container main body 2 ... Heat generating layer 3 ... Heat resistant coating layer
Claims (7)
なる容器本体の外面に、鉄系合金とアルミニウム又は亜
鉛とを順次溶射した後、溶射領域に研磨を施してなる金
属発熱層と、少なくとも金属発熱層を被覆する耐熱被膜
層とを備えたことを特徴とする電磁調理容器。1. A metal heating layer formed by sequentially spraying an iron-based alloy and aluminum or zinc on the outer surface of a container body made of aluminum or an aluminum alloy, and then polishing the sprayed region, and covering at least the metal heating layer. An electromagnetic cooking container, comprising: a heat-resistant coating layer;
／ｃｍ2以下の高圧で吹き付けることにより形成される
被膜層と、耐熱材料を被膜層を形成する際の吹付け空気
圧よりも小さい１ｋｇ／ｃｍ2以下の低圧で吹き付ける
ことにより前記被膜層の表面に凹凸模様を形成する被膜
突部とで構成したことを特徴とする請求項１に記載の電
磁調理容器。2. The heat-resistant coating layer comprises a heat-resistant material of 10 kg.
/ And a coating layer formed by spraying in cm 2 or less of a high-pressure, heat-resistant material to the surface of the coating layer by spraying with a small 1 kg / cm 2 or less lower pressure than spraying air pressure at the time of forming the coating layer The electromagnetic cooking container according to claim 1, wherein the electromagnetic cooking container comprises a coating projection that forms an uneven pattern.
ｋｇ／ｃｍ2の高圧で吹き付けることにより形成する一
方、前記被膜突部は、耐熱材料を０.１〜０.３ｋｇ／ｃ
ｍ2の低圧で吹き付けることにより形成したことを特徴
とする請求項２に記載の電磁調理容器。3. The coating layer comprises a heat-resistant material of 2.5 to 3.5.
While being formed by spraying at a high pressure of kg / cm 2, the coating projection is made of a heat-resistant material of 0.1 to 0.3 kg / c.
electromagnetic cooking vessel according to claim 2, characterized in that formed by spraying in low pressure m 2.
スト工程と、 ブラスト加工した領域に鉄系合金を溶射する第一溶射工
程と、 鉄系合金を溶射した領域にアルミニウム又は亜鉛を溶射
する第二溶射工程と、 溶射領域を研磨する研磨工程と、 溶射領域を耐熱材料で被覆する被覆工程とで被膜を形成
することを特徴とする電磁調理容器の形成方法。4. A blasting step of blasting the outer surface of the container body, a first spraying step of spraying an iron-based alloy on the blasted area, and a second spraying of aluminum or zinc on the area sprayed with the iron-based alloy. A method for forming an electromagnetic cooking container, comprising: forming a coating by a thermal spraying step, a polishing step of polishing a thermal sprayed area, and a coating step of coating the thermal sprayed area with a heat-resistant material.
ｃｍ2以下の高圧で吹き付ける第一被覆工程と、耐熱材
料を該第一被覆工程での吹付け空気圧よりも小さい１ｋ
ｇ／ｃｍ2以下の低圧で吹き付ける第二被覆工程とで行
うことを特徴とする請求項３に記載の電磁調理容器の形
成方法。5. The method according to claim 1, wherein the heat-resistant material comprises 10 kg /
a first coating step of spraying at a high pressure of not more than 2 cm 2, and a heat-resistant material of 1 k smaller than the blowing air pressure in the first coating step.
method of forming an electromagnetic cooking vessel according to claim 3, characterized in that in a second coating step of spraying in g / cm 2 or less low pressure.
〜３.５ｋｇ／ｃｍ2の高圧で吹き付ける一方、前記第二
被覆工程は、耐熱材料を０.１〜０.３ｋｇ／ｃｍ2の低
圧で吹き付けることを特徴とする請求項５に記載の電磁
調理容器の形成方法。6. The first coating step comprises the steps of:
While blowing with high pressure ~3.5kg / cm 2, the second coating step, electromagnetic range according to claim 5, wherein the blowing refractory material at low pressure of between 0.1 and 0.3 kg / cm 2 The method of forming the container.
比べて溶剤含有率の小さい耐熱材料を使用することを特
徴とする請求項５又は６に記載の電磁調理容器の形成方
法。7. The method for forming an electromagnetic cooking container according to claim 5, wherein a heat-resistant material having a lower solvent content than the first coating step is used in the second coating step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25083698A JP3408428B2 (en) | 1998-09-04 | 1998-09-04 | Electromagnetic cooking container and method of forming the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25083698A JP3408428B2 (en) | 1998-09-04 | 1998-09-04 | Electromagnetic cooking container and method of forming the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000079064A true JP2000079064A (en) | 2000-03-21 |
| JP3408428B2 JP3408428B2 (en) | 2003-05-19 |
Family
ID=17213749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25083698A Expired - Fee Related JP3408428B2 (en) | 1998-09-04 | 1998-09-04 | Electromagnetic cooking container and method of forming the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3408428B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008220470A (en) * | 2007-03-09 | 2008-09-25 | Tiger Vacuum Bottle Co Ltd | Electric rice cooker |
| KR101231490B1 (en) * | 2011-05-13 | 2013-02-07 | 하상훈 | Apparatus for manufacturing induction cooking utensils |
| JP2017029203A (en) * | 2015-07-29 | 2017-02-09 | 日立アプライアンス株式会社 | rice cooker |
| JP2018183565A (en) * | 2017-04-21 | 2018-11-22 | 佛山市▲順▼▲徳▼区美的▲電▼▲熱▼▲電▼器制造有限公司Ｆｏｓｈａｎ Ｓｈｕｎｄｅ Ｍｉｄｅａ Ｅｌｅｃｔｒｉｃａｌ Ｈｅａｔｉｎｇ Ａｐｐｌｉａｎｃｅｓ Ｍａｎｕｆａｃｔｕｒｉｎｇ Ｃｏ．，Ｌｉｍｉｔｅｄ | Cooking apparatus for electromagnetic heating, and method for manufacturing the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3013828U (en) | 1994-07-26 | 1995-07-25 | アークテクノ株式会社 | Base material coating structure |
-
1998
- 1998-09-04 JP JP25083698A patent/JP3408428B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008220470A (en) * | 2007-03-09 | 2008-09-25 | Tiger Vacuum Bottle Co Ltd | Electric rice cooker |
| KR101231490B1 (en) * | 2011-05-13 | 2013-02-07 | 하상훈 | Apparatus for manufacturing induction cooking utensils |
| JP2017029203A (en) * | 2015-07-29 | 2017-02-09 | 日立アプライアンス株式会社 | rice cooker |
| JP2018183565A (en) * | 2017-04-21 | 2018-11-22 | 佛山市▲順▼▲徳▼区美的▲電▼▲熱▼▲電▼器制造有限公司Ｆｏｓｈａｎ Ｓｈｕｎｄｅ Ｍｉｄｅａ Ｅｌｅｃｔｒｉｃａｌ Ｈｅａｔｉｎｇ Ａｐｐｌｉａｎｃｅｓ Ｍａｎｕｆａｃｔｕｒｉｎｇ Ｃｏ．，Ｌｉｍｉｔｅｄ | Cooking apparatus for electromagnetic heating, and method for manufacturing the same |
| JP2020093168A (en) * | 2017-04-21 | 2020-06-18 | 佛山市▲順▼▲徳▼区美的▲電▼▲熱▼▲電▼器制造有限公司Ｆｏｓｈａｎ Ｓｈｕｎｄｅ Ｍｉｄｅａ Ｅｌｅｃｔｒｉｃａｌ Ｈｅａｔｉｎｇ Ａｐｐｌｉａｎｃｅｓ Ｍａｎｕｆａｃｔｕｒｉｎｇ Ｃｏ．， Ｌｔｄ． | Cooking implement for electromagnetic heating and manufacturing method of the same |
| JP7061637B2 (en) | 2017-04-21 | 2022-04-28 | 佛山市▲順▼▲徳▼区美的▲電▼▲熱▼▲電▼器制造有限公司 | Manufacturing method of cooking utensils for electromagnetic heating |
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| Publication number | Publication date |
|---|---|
| JP3408428B2 (en) | 2003-05-19 |
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