JP3408428B2 - Electromagnetic cooking container and method of forming the same - Google Patents
Electromagnetic cooking container and method of forming the sameInfo
- Publication number
- JP3408428B2 JP3408428B2 JP25083698A JP25083698A JP3408428B2 JP 3408428 B2 JP3408428 B2 JP 3408428B2 JP 25083698 A JP25083698 A JP 25083698A JP 25083698 A JP25083698 A JP 25083698A JP 3408428 B2 JP3408428 B2 JP 3408428B2
- Authority
- JP
- Japan
- Prior art keywords
- coating
- spraying
- heat
- resistant material
- cooking container
- 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.)
- Expired - Fee Related
Links
- 238000010411 cooking Methods 0.000 title claims description 22
- 238000000034 method Methods 0.000 title claims description 14
- 239000011247 coating layer Substances 0.000 claims description 26
- 238000000576 coating method Methods 0.000 claims description 26
- 239000011248 coating agent Substances 0.000 claims description 25
- 239000010410 layer Substances 0.000 claims description 21
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 20
- 239000003779 heat-resistant material Substances 0.000 claims description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000007751 thermal spraying Methods 0.000 claims description 18
- 238000005507 spraying Methods 0.000 claims description 17
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 12
- 238000005498 polishing Methods 0.000 claims description 12
- 229910052725 zinc Inorganic materials 0.000 claims description 12
- 239000011701 zinc Substances 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 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 9
- 238000005422 blasting Methods 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 239000011819 refractory material Substances 0.000 claims 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
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 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
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920002312 polyamide-imide Polymers 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- 239000002987 primer (paints) Substances 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
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000004952 Polyamide Substances 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
- 239000011230 binding agent Substances 0.000 description 1
- 235000013339 cereals Nutrition 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
- 238000007610 electrostatic coating method Methods 0.000 description 1
- 238000010304 firing 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
- 239000003973 paint Substances 0.000 description 1
- -1 perfluoro / alkyl vinyl ether Chemical compound 0.000 description 1
- 229920002647 polyamide Polymers 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
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 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)
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 type rice cooker and an electromagnetic cooking device, and a method for 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. It is known that the above is coated with a heat-resistant protective film such as an inorganic coating (Japanese Patent Laid-Open No. 8-58200).
─ See JP-A-200604).
【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, in order to sufficiently generate heat in the metal heating layer by the induced current, the metal heating layer has a predetermined thickness (500 to 6).
00 μm) is required. However, when such a thick metal heating layer is formed by thermal spraying, it is unavoidable that the surface roughness becomes large. In this case, even if it coats with a heat-resistant protective film, a desirable appearance cannot be obtained. Further, even if the metal heating layer is polished, there is a problem in terms of time and cost to finish the surface with a smooth surface similar to that of the non-sprayed outer surface.
【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。Therefore, it is an object of the present invention to provide an electromagnetic cooking container excellent in appearance and a method for forming the same, even when the metal heating layer is formed by thermal spraying.
【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。As a means for solving the above problems, the present invention provides an electromagnetic cooking container in which an iron-based alloy and aluminum or zinc are sequentially provided on the outer surface of a container body made of aluminum or an aluminum alloy. After the thermal spraying, a metal heat generating layer obtained by polishing the sprayed area and a heat-resistant coating layer covering at least the metal heat generating layer are provided.
【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。With this configuration, since the polishing is performed after the thermal spraying, the surface roughness becomes small and smooth, and the appearance becomes 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 a high pressure of 2.5 to 3.5 kg / cm 2 , and 1 kg / cm smaller than the blowing air pressure when the heat resistant material is formed. 2 or less, preferably 0.1 to 0.3 kg /
It is preferable to form the heat-resistant coating layer having a preferable appearance by forming the coating layer on the surface of the coating layer by applying a low pressure of 2 cm 2 to form an uneven pattern on the surface of the coating layer.
【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。As a means for solving the above problems, the present invention provides a method for forming an electromagnetic cooking container, which comprises a blasting step of blasting an outer surface of a container body, and a ferrous alloy sprayed on a blasted area. A film is formed by a first thermal spraying step, a second thermal spraying step of spraying aluminum or zinc onto the area where an iron-based alloy is sprayed, a polishing step of polishing the thermal sprayed area, and a coating step of coating the thermal sprayed area with a heat-resistant material. 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 10 kg / c.
m 2 or less, preferably a first coating step of spraying at a high pressure of 2.5 to 3.5 kg / cm 2 , and a heat resistant material of 1 kg / cm 2 or less, which is smaller than the blowing air pressure 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 because a good appearance shape 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 smaller solvent content than that in the first coating step because 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。DETAILED DESCRIPTION OF THE INVENTION 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 this 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 the container body 1, and
A fluorine coating layer 4 is formed on the inner surface of the container body 1.
【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 forming aluminum or an aluminum alloy into a bottomed cylinder by deep drawing. 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 blasting, the grain size is # 1
A 6 to # 36 alumina-based abrasive is used to form a surface having an average surface roughness of 10 to 15 μm.
【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, the metal heating layer 2 is formed by spraying the blasted region. The thermal spraying is performed by a first thermal spraying process performed with an iron-based alloy and a second thermal spraying process 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 process, a mild steel wire rod (JISG-3505) is used as the iron-based alloy, and the arc voltage is set to 25.
The voltage is set to about 30 V and the thickness is set to 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), 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 the thickness of zinc itself is 50 to 50 under the same conditions as in the first thermal spraying step.
The thickness is 70 μm, and the metal heating layer 2 is formed by performing the process until the total thickness of the mild steel wire rods is 500 to 550 μm. Due to 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 the mild steel wire rod is sprayed on the container body, but also the zinc which is softer than the mild steel wire rod is sprayed and the surface to be sprayed is mainly the zinc sprayed layer, so it is easy to polish, and therefore not as much as the non-sprayed surface. , Fig. 2
As shown in (b), the polishing surface can be made smooth to obtain a desired appearance.
【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。Then, the entire outer surface of the container body 1 is roughened with a roughness #
Blasting is performed with 100 to # 120 abrasive. After the blast treatment, the abrasive adhered 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３ａ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。After that, 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). The coating layer 3a of the heat-resistant coating layer 3 is formed by spraying with a high air pressure of 10 kg / cm 2 or less (in the present embodiment, 2.5 to 3.5 kg / cm 2 ) using an air spray gun. Until about 20 μm.
The material that can be used is a heat-resistant material having a melting point of 200 ° C. or higher, and 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３ｂ（図２（ｄ）参
照）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、０.１〜０.３
ｋｇ／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２５０℃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, leave it for a few minutes at room temperature, or 70
After drying in an atmosphere of -80 ° C for 2 to 3 minutes, the coating process is performed again with the silicon resin material or a material having a solvent content smaller than that to form the coating projection 3b (see Fig. 2 (d)). Form. In this case, the air pressure is 10 kg / cm 2 or less, which is smaller than the above (in the present embodiment, 0.1 to 0.3).
Fully open the nozzle of the air spray gun with a low air pressure of kg / cm 2 ). This allows the entire outer surface of the container body to have fine irregularities. Then, by baking at 250 ° C. for 15 minutes in a drying furnace, the heat-resistant coating layer 3 having fine unevenness 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, the inner surface of the container body 1 is coated with fluorine to form a fluorine coating layer 4.
【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 outer surface of the container body 1 is covered with a masking jig, and the entire inner surface is blasted. For the blasting process, a suction type blasting machine is used, and for example, the particle size is # 100 to # 120.
The alumina-based abrasive of No. 1 is sprayed at an air pressure of 3 to 4 kg / cm 2 . Then, the fluororesin-based primer coating material is applied until the thickness becomes 10 to 12 μm. For the paint, for example, a dispersion of PFA (tetrafluoroethylene / perfluoro / alkyl vinyl ether copolymer resin) is used as a main component, and heat resistance of PES (polyether sulfone), PA (polyamide), PAI (polyamide imide), etc. Use a resin as a binder. Then, it is dried in an atmosphere of 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 level line is printed. The composition of the ink is such that the resin used in the primer coating is the main component and the ink containing the white pigment whose main component is titanium oxide is pad-printed.
【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。After that, 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 coating, the fluorine coating layer 4 is completed by firing in a furnace at 380 to 400 ° C. for 20 minutes.
【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 not only the iron-based alloy but also zinc. Therefore, in the polishing operation, since the soft portion mainly sprayed with zinc can be polished, the surface roughness of the polishing surface can be kept small and smooth. 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 between the sprayed surface and the non-sprayed surface without causing any discomfort.
【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 heating layer is formed by sequentially spraying the iron-based alloy and aluminum or zinc and then polishing. As a result, it is possible to obtain a uniform and desirable 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 heat-resistant coating layer is formed in two steps with different blowing air pressures of the heat-resistant material, a fine uneven pattern having no discomfort between the sprayed surface and the non-sprayed surface is formed. 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 more coarse.
【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 the metal heating layer and the heat resistant coating layer of FIG.
１…容器本体 ２…金属発熱層 ３…耐熱被膜層 1 ... Container body 2 ... Metal heating layer 3 ... Heat resistant coating layer
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平10−125453（ＪＰ，Ａ) 特開 平８−206004（ＪＰ，Ａ) 特開 平８−173312（ＪＰ，Ａ) 特開 平11−276343（ＪＰ，Ａ) 特開 平９−63759（ＪＰ，Ａ) 特開 平７−289（ＪＰ，Ａ) 特開 平４−166270（ＪＰ，Ａ) 特開 平８−71493（ＪＰ，Ａ) 特開2000−60722（ＪＰ，Ａ) 特開 平９−75225（ＪＰ，Ａ) 実開 昭61−162990（ＪＰ，Ｕ) 登録実用新案3013828（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) A47J 36/02 A47J 27/00 103 A47J 27/00 104 H05B 6/12 314 ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-10-125453 (JP, A) JP-A-8-206004 (JP, A) JP-A-8-173312 (JP, A) JP-A-11- 276343 (JP, A) JP-A-9-63759 (JP, A) JP-A-7-289 (JP, A) JP-A-4-166270 (JP, A) JP-A-8-71493 (JP, A) JP-A-2000-60722 (JP, A) JP-A-9-75225 (JP, A) Actual development Sho 61-162990 (JP, U) Registered utility model 3013828 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) A47J 36/02 A47J 27/00 103 A47J 27/00 104 H05B 6/12 314
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 area, and at least a metal heating layer. An electromagnetic cooking container, comprising:
／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 is made of 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 is configured with a coating protrusion 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 heat-resistant material for the coating layer is 2.5 to 3.5.
While being formed by spraying at a high pressure of kg / cm 2, the coating protrusion has a heat resistant material of 0.1 to 0.3 kg / c.
The electromagnetic cooking container according to claim 2, which is formed by spraying at a low pressure of 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 thermal spraying step of spraying an iron-based alloy onto the blasted area, and a second thermal spraying step of aluminum or zinc onto the area onto which the iron-based alloy is sprayed. A method for forming an electromagnetic cooking container, which comprises forming a coating by a thermal spraying step, a polishing step of polishing the 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 heat-resistant material in the coating step is 10 kg /
First coating step of spraying at a high pressure of cm 2 or less, and 1 k that is smaller than the blowing air pressure of the heat resistant material in the first coating step
The method for forming an electromagnetic cooking container according to claim 3, wherein the method is performed in a second coating step of spraying at a low pressure of g / cm 2 or less.
〜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 applying a heat resistant material to 2.5.
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 Method of forming 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 in the second coating step, a heat-resistant material having a smaller solvent content than that in the first coating step is used.
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 JP2000079064A (en) | 2000-03-21 |
| JP3408428B2 true 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) |
Families Citing this family (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 |
| JP6630509B2 (en) * | 2015-07-29 | 2020-01-15 | 日立グローバルライフソリューションズ株式会社 | rice cooker |
| KR20180118501A (en) * | 2017-04-21 | 2018-10-31 | 포샨 순더 메이디 일렉트리컬 히팅 어플라이언시스 메뉴팩쳐링 코., 리미티드 | An electromagnetic heating cooker and a method for manufacturing the same |
Citations (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
Patent Citations (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 |
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| Publication number | Publication date |
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| JP2000079064A (en) | 2000-03-21 |
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