JP4295232B2 - 電磁誘導加熱調理器用容器 - Google Patents
電磁誘導加熱調理器用容器 Download PDFInfo
- Publication number
- JP4295232B2 JP4295232B2 JP2005064928A JP2005064928A JP4295232B2 JP 4295232 B2 JP4295232 B2 JP 4295232B2 JP 2005064928 A JP2005064928 A JP 2005064928A JP 2005064928 A JP2005064928 A JP 2005064928A JP 4295232 B2 JP4295232 B2 JP 4295232B2
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- Prior art keywords
- electromagnetic induction
- alloy
- container
- rice
- induction heating
- Prior art date
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- 230000005674 electromagnetic induction Effects 0.000 title claims description 47
- 238000010438 heat treatment Methods 0.000 title claims description 27
- 239000000956 alloy Substances 0.000 claims description 40
- 229910045601 alloy Inorganic materials 0.000 claims description 38
- 230000006698 induction Effects 0.000 claims description 17
- 239000007769 metal material Substances 0.000 claims description 14
- 238000005507 spraying Methods 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- 239000000919 ceramic Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000011651 chromium Substances 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 5
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 4
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 4
- 229910000423 chromium oxide Inorganic materials 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 229910018487 Ni—Cr Inorganic materials 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 241000209094 Oryza Species 0.000 description 38
- 235000007164 Oryza sativa Nutrition 0.000 description 38
- 235000009566 rice Nutrition 0.000 description 38
- 238000000034 method Methods 0.000 description 22
- 238000010411 cooking Methods 0.000 description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 229910052782 aluminium Inorganic materials 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 101150006573 PAN1 gene Proteins 0.000 description 8
- 239000000696 magnetic material Substances 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000007751 thermal spraying Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 235000013305 food Nutrition 0.000 description 4
- 238000010289 gas flame spraying Methods 0.000 description 4
- 229910000889 permalloy Inorganic materials 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000007750 plasma spraying Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- Cookers (AREA)
Description
a.特定周波数の高周波で短時間に効率よくご飯を炊きあげること、
b.炊飯後は、省エネルギーによる保温とご飯の品質を維持すること、
が挙げられる。しかしながら、前記従来の手法で製造した炊飯器で所定の電磁特性を得るには、溶射皮膜の厚膜化が必要であり、過大な電力を要するため、炊飯の効率および保温性能が悪く、保温時の消費電力が高いと共に、ご飯の品質が低下してしまうという問題点があった。
図3に示す鍋1は、非磁性材料、例えばアルミニウム板等で製作されたものである。この鍋1は、本体に付帯して設けられた電磁誘導コイルから発せられた磁力線の作用により、外表面を構成する磁性金属材料からなる電磁誘導層2に渦電流が発生するため、発熱し、このことにより、加熱炊飯を行うことができるようになっている。したがって、かかる磁性金属材料としては、電磁誘導によって発熱する金属もしくは合金を用いることが好ましく、この電磁誘導層2は、溶射法により鍋1の外表面に形成することが好ましい。
以下、本発明の誘導加熱器に用いて好適な磁性金属材料および皮膜被覆形成方法について詳細に説明する。
電磁誘導層のインダクタンスについては、30μHより小さいと、炊飯に必要な電力、すなわち誘導電流が得られず、一方、上限については、表皮抵抗と同様、溶射膜の厚みを増やしてもインダクタンスは50μHが限界であり、さらに50μHより大きくなると、大電流が流れて電源が切れる等の不具合が生じてしまう。
図6に示すように、アルミニウム製鍋1の外表面に実施例1と同様の合金を、高速ガス炎溶射法により300μmの厚さに溶射し、電磁誘導層2を形成した。さらに、鍋1の内表面には、遠赤外線層5として、チタン酸化物の粉末をプラズマ溶射法により約200μmの厚さに溶射被覆した。なお、ご飯の付着防止のため、遠赤外線層5の表面にテフロン塗装3を実施した。また、比較用としてアルミニウム製鍋の外表面に、従来より採用されている鋼鉄を高速ガス炎溶射法により500μmの厚さに溶射して皮膜形成し、鍋の内表面にはテフロン塗装を実施した。
2 電磁誘導層
3 フッ素樹脂系のコーティング
4 犠牲防食皮膜
5 遠赤外線層
6 保護枠
7 電磁コイル
Claims (2)
- 容器本体が、非磁性金属からなる部材の外表面に、皮膜厚さが300μm〜700μm、表皮抵抗が1000mΩ〜3500mΩおよびインダクタンスが30μH〜50μHの範囲内にある、磁性金属材料の溶射皮膜からなる電磁誘導層を設けたものからなる容器において、前記磁性金属材料として、Niを80mass%含有し、残部がFeよりなるFe-Ni系合金(A)と、その合金(A)にCrを18mass%添加してなるFe-Ni-Cr系合金(B)とを50mass%ずつの比率で配合してなる合金を用いることを特徴とする電磁誘導加熱調理器用容器。
- 前記非磁性金属からなる部材は、その内表面に、チタン酸化物、クロム酸化物、アルミニウム酸化物またはそれらのいずれか1種以上を含む複合酸化物などのセラミック溶射皮膜からなる遠赤外線層を設けてなることを特徴とする請求項1に記載の電磁誘導加熱調理器用容器。
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JP2005064928A JP4295232B2 (ja) | 2005-03-09 | 2005-03-09 | 電磁誘導加熱調理器用容器 |
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JP2006246998A JP2006246998A (ja) | 2006-09-21 |
JP4295232B2 true JP4295232B2 (ja) | 2009-07-15 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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TWI466650B (zh) * | 2010-11-08 | 2015-01-01 | Ind Tech Res Inst | 鍋具及其製造方法 |
CN107090578B (zh) * | 2016-11-22 | 2020-04-24 | 佛山市顺德区美的电热电器制造有限公司 | 一种结构致密的导磁涂层及其制备方法 |
CN113115995A (zh) * | 2020-01-13 | 2021-07-16 | 深圳市合元科技有限公司 | 气雾生成装置及加热器 |
CN114224196A (zh) * | 2021-11-27 | 2022-03-25 | 张英华 | 空气炸锅及控制方法 |
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