JPS636615B2 - - Google Patents
Info
- Publication number
- JPS636615B2 JPS636615B2 JP58199859A JP19985983A JPS636615B2 JP S636615 B2 JPS636615 B2 JP S636615B2 JP 58199859 A JP58199859 A JP 58199859A JP 19985983 A JP19985983 A JP 19985983A JP S636615 B2 JPS636615 B2 JP S636615B2
- Authority
- JP
- Japan
- Prior art keywords
- metal strip
- jet nozzle
- heating
- induction heating
- heating device
- 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
Links
- 239000002184 metal Substances 0.000 claims description 35
- 229910052751 metal Inorganic materials 0.000 claims description 35
- 238000010438 heat treatment Methods 0.000 claims description 34
- 230000006698 induction Effects 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
Classifications
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/60—Continuous furnaces for strip or wire with induction heating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Description
【発明の詳細な説明】
本発明は金属ストリツプの誘導加熱装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for induction heating of metal strips.
金属ストリツプを加熱する場合、加熱手段とし
て種々のものが採用されているが、そのうちの一
つとして誘導加熱装置がある。 When heating a metal strip, various heating means are employed, one of which is an induction heating device.
この誘導加熱装置は、加熱速度を容易に制御で
き、かつ加熱効率が良いという利点を有する反
面、走行する金属ストリツプの加熱時、ストリツ
プのエツジ部では、他の部分と異なる磁束密度を
形成するため、第１図イにカーブａで示すよう
に、エツジ部が過熱され、例えば、Alストリツ
プの誘導加熱では、その差が約10％にも達し、ス
トリツプの巾方向にわたつて均一に加熱すること
ができないという問題を有している。 This induction heating device has the advantage of being able to easily control the heating rate and have good heating efficiency, but on the other hand, when heating a running metal strip, the edges of the strip form a different magnetic flux density than other parts. , as shown by curve a in Figure 1A, the edge portion is overheated, and for example, in induction heating of an Al strip, the difference is about 10%, and it is difficult to heat uniformly across the width of the strip. The problem is that it cannot be done.
この問題を解決するため、金属ストリツプのエ
ツジ部に水冷シールド銅板を配置する等により、
金属ストリツプの巾方向における磁束密度を制御
する方法が提案されているが、水冷シールド銅板
による電気的損失あるいは装置の複雑化を生ずる
という欠点を有していた。 In order to solve this problem, by placing a water-cooled shield copper plate on the edge of the metal strip, etc.
A method of controlling the magnetic flux density in the width direction of a metal strip has been proposed, but this method has the disadvantage of causing electrical loss due to the water-cooled shielding copper plate and complicating the device.
本発明者等は、金属ストリツプを誘導加熱装置
で加熱する場合の欠点を除去するために種々検討
の結果、誘導加熱と対流加熱または冷却を併用す
れば、金属ストリツプの巾方向の磁束密度を制御
することなく、金属ストリツプを均一に加熱する
ことができると云う点に着目し、誘導加熱器の他
に、噴流ノズルを設け、この噴流ノズルからの噴
流ガスにより金属ストリツプの巾方向を加熱ある
いはエツジ部を冷却、さらには両者を併用するこ
とにより、誘導加熱の利点を生かして金属ストリ
ツプを均一加熱することのできる金属ストリツプ
の誘導加熱装置を提供しようとするものである。 In order to eliminate the disadvantages of heating a metal strip with an induction heating device, the inventors of the present invention have conducted various studies and found that if induction heating and convection heating or cooling are used together, the magnetic flux density in the width direction of the metal strip can be controlled. Focusing on the fact that the metal strip can be heated uniformly without heating the metal strip, we installed a jet nozzle in addition to the induction heater, and the jet gas from the jet nozzle heats the width of the metal strip or edges. The object of the present invention is to provide an induction heating device for a metal strip that can uniformly heat the metal strip by taking advantage of the advantages of induction heating by cooling the metal strip and by using both in combination.
つぎに、本発明の一実施例を図面にしたがつて
説明する。 Next, one embodiment of the present invention will be described with reference to the drawings.
第２図において、１は従来公知の上下一対の誘
導加熱器で、金属ストリツプＳの搬送通路を挟ん
で配設されるとともに、この誘導加熱器１間に
は、同様に上下一対の加熱用噴流ノズル２が金属
ストリツプＳの巾方向に配設されている。また、
前記誘導加熱器１の両側には、金属ストリツプＳ
のエツジ部と対向して冷却用噴流ノズル３が配設
されている。 In Fig. 2, reference numeral 1 designates a conventionally known pair of upper and lower induction heaters, which are disposed across a conveyance path for the metal strip S, and between the induction heaters 1, a pair of upper and lower heating jets is similarly provided. A nozzle 2 is arranged in the width direction of the metal strip S. Also,
There are metal strips S on both sides of the induction heater 1.
A cooling jet nozzle 3 is disposed opposite the edge portion of the cooling jet nozzle 3.
なお、前記加熱用噴流ノズル２から噴出される
ガス量は、第３図に示すように中央部が多く、端
部が少量となつており、つまり傾斜加熱方式とな
つている。 As shown in FIG. 3, the amount of gas ejected from the heating jet nozzle 2 is large at the center and small at the ends, that is, an inclined heating method is adopted.
したがつて、いま、金属ストリツプＳを誘導加
熱器１で加熱すると、金属ストリツプの巾方向の
温度分布は第１図イのカーブａのように、エツジ
部が△ｔだけ過熱されることになるが、前記金属
ストリツプＳの巾方向は、加熱用噴流ノズル２か
らの加熱ガスにより傾斜加熱されて、第１図ロの
カーブｂのようになる一方、金属ストリツプＳの
エツジ部は冷却用噴流ノズル３からの冷却ガスに
より冷却されて第１図ハのカーブｃのようにそれ
ぞれ加熱・冷却され、金属ストリツプＳは最終的
に第１図ニのカーブｄで示すように巾方向に均一
加熱されることになる。 Therefore, if the metal strip S is now heated by the induction heater 1, the temperature distribution in the width direction of the metal strip will be as shown by curve a in Figure 1A, and the edge portion will be overheated by △t. However, the width direction of the metal strip S is heated obliquely by the heating gas from the heating jet nozzle 2, so that it becomes like the curve b in Fig. The metal strip S is cooled by the cooling gas from 3 and heated and cooled respectively as shown by curve c in Fig. 1C, and finally the metal strip S is heated uniformly in the width direction as shown by curve d in Fig. 1D. It turns out.
なお、前記実施例では、誘導加熱器１に、加熱
用噴流ノズル２および冷却用噴流ノズル３とを設
けたものを示したが、金属ストリツプＳの材質、
厚み、巾寸法によつては、加熱用噴流ノズル２あ
るいは冷却用噴流ノズル３のいずれか一方のみで
もよい。 In the above embodiment, the induction heater 1 is provided with the heating jet nozzle 2 and the cooling jet nozzle 3, but the material of the metal strip S,
Depending on the thickness and width, only either the heating jet nozzle 2 or the cooling jet nozzle 3 may be used.
また、両ノズル２，３の配置も実施例のものに
限られるものでないことは勿論、両ノズルを一つ
のボツクス内に構成するようにしてもよいことは
云うまでもない。 Further, the arrangement of both nozzles 2 and 3 is not limited to that of the embodiment, and it goes without saying that both nozzles may be arranged in one box.
以上の説明で明らかなように、本発明によれ
ば、金属ストリツプの加熱を主として誘導加熱器
により行ない、金属ストリツプのエツジ部の過熱
を噴流ノズルからの噴流ガスによる熱伝達により
補正するものであるため、誘導加熱の利点を生か
しつつ安価にして均一な金属ストリツプの均一加
熱を行なうことができる。 As is clear from the above description, according to the present invention, the metal strip is primarily heated by an induction heater, and overheating of the edge portion of the metal strip is compensated for by heat transfer by the jet gas from the jet nozzle. Therefore, it is possible to uniformly heat a metal strip at a low cost while taking advantage of the advantages of induction heating.
第１図イ〜ニは、金属ストリツプの巾方向にお
ける温度カーブ、第２図は、本発明にかかる誘導
加熱装置の正面図で、第３図は第２図の−線
断面図である。
１……誘導加熱器、２……加熱用噴流ノズル、
３……冷却用噴流ノズル。
1A to 1D are temperature curves in the width direction of the metal strip, FIG. 2 is a front view of the induction heating device according to the present invention, and FIG. 3 is a sectional view taken along the line -- in FIG. 2. 1...Induction heater, 2...Heating jet nozzle,
3... Cooling jet nozzle.
Claims (1)
記誘導加熱装置の所定位置に、金属ストリツプに
噴流ガスによる熱伝達を付与する噴流ノズルを配
設したことを特徴とする金属ストリツプの誘導加
熱装置。 ２ 前記噴流ノズルが、金属ストリツプの巾方向
に位置する加熱用噴流ノズルであることを特徴と
する前記特許請求の範囲第１項に記載の金属スト
リツプの誘導加熱装置。 ３ 前記噴流ノズルが、金属ストリツプのエツジ
部に位置する冷却用噴流ノズルであることを特徴
とする前記特許請求の範囲第１項に記載の金属ス
トリツプの誘導加熱装置。 ４ 前記噴流ノズルが、金属ストリツプの巾方向
に位置する加熱用噴流ノズルと、金属ストリツプ
のエツジ部に位置する冷却用噴流ノズルであるこ
とを特徴とする前記特許請求の範囲第１項に記載
の金属ストリツプの誘導加熱装置。[Scope of Claims] 1. An induction heating device for a metal strip, characterized in that a jet nozzle is disposed at a predetermined position of the induction heating device for imparting heat transfer to the metal strip by jet gas. heating device. 2. The induction heating device for a metal strip according to claim 1, wherein the jet nozzle is a heating jet nozzle located in the width direction of the metal strip. 3. An apparatus for induction heating a metal strip according to claim 1, wherein the jet nozzle is a cooling jet nozzle located at an edge of the metal strip. 4. The jet nozzle according to claim 1, wherein the jet nozzle is a heating jet nozzle located in the width direction of the metal strip and a cooling jet nozzle located at the edge of the metal strip. Induction heating device for metal strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58199859A JPS6092428A (en) | 1983-10-25 | 1983-10-25 | Apparatus for induction-heating metallic strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58199859A JPS6092428A (en) | 1983-10-25 | 1983-10-25 | Apparatus for induction-heating metallic strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6092428A JPS6092428A (en) | 1985-05-24 |
| JPS636615B2 true JPS636615B2 (en) | 1988-02-10 |
Family
ID=16414832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58199859A Granted JPS6092428A (en) | 1983-10-25 | 1983-10-25 | Apparatus for induction-heating metallic strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6092428A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6298588A (en) * | 1985-10-25 | 1987-05-08 | 日本軽金属株式会社 | Electromagnetic induction heater |
| BE1004663A3 (en) * | 1991-03-05 | 1993-01-05 | Bekaert Sa Nv | Multiple wire treatment device |
| GB2352731A (en) * | 1999-07-29 | 2001-02-07 | British Steel Plc | Strip cooling apparatus |
| JP4945853B2 (en) * | 2001-04-20 | 2012-06-06 | Ｊｆｅスチール株式会社 | Heat treatment method and apparatus for steel sheet |
| JP2010163634A (en) * | 2009-01-13 | 2010-07-29 | Chugai Ro Co Ltd | Apparatus for treating strip material |
| JP6296242B2 (en) * | 2014-11-25 | 2018-03-20 | Ｊｆｅスチール株式会社 | Heating method and continuous annealing equipment for thin steel sheet |
| CN108778542A (en) * | 2015-12-04 | 2018-11-09 | 奥科宁克公司 | The method of cooling conductive sheet during transverse magnetic flux induction heat treatment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4961733A (en) * | 1972-10-17 | 1974-06-14 | ||
| JPS5122136A (en) * | 1974-08-19 | 1976-02-21 | Nippon Steel Corp | |
| JPS5230935A (en) * | 1976-08-11 | 1977-03-09 | Mitsubishi Electric Corp | Inductive heating process |
| JPS5641321A (en) * | 1979-09-14 | 1981-04-18 | Nippon Kokan Kk <Nkk> | Cooling method for hoop in continuous furnace |
-
1983
- 1983-10-25 JP JP58199859A patent/JPS6092428A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4961733A (en) * | 1972-10-17 | 1974-06-14 | ||
| JPS5122136A (en) * | 1974-08-19 | 1976-02-21 | Nippon Steel Corp | |
| JPS5230935A (en) * | 1976-08-11 | 1977-03-09 | Mitsubishi Electric Corp | Inductive heating process |
| JPS5641321A (en) * | 1979-09-14 | 1981-04-18 | Nippon Kokan Kk <Nkk> | Cooling method for hoop in continuous furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6092428A (en) | 1985-05-24 |
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