JPH01232685A - Induction heating device for steel plate - Google Patents
Induction heating device for steel plateInfo
- Publication number
- JPH01232685A JPH01232685A JP63056343A JP5634388A JPH01232685A JP H01232685 A JPH01232685 A JP H01232685A JP 63056343 A JP63056343 A JP 63056343A JP 5634388 A JP5634388 A JP 5634388A JP H01232685 A JPH01232685 A JP H01232685A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- magnetic flux
- solenoid coil
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 65
- 239000010959 steel Substances 0.000 title claims abstract description 65
- 230000006698 induction Effects 0.000 title claims description 19
- 238000010438 heat treatment Methods 0.000 title claims description 14
- 230000004907 flux Effects 0.000 claims abstract description 23
- 230000002040 relaxant effect Effects 0.000 claims abstract description 6
- 239000012141 concentrate Substances 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 230000005389 magnetism Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 2
- 238000005275 alloying Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000003708 edge detection Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- 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
- General Induction Heating (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野〕
本発明は、例えば鋼板の合金化に適用される鋼板誘導加
熱装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a steel plate induction heating apparatus that is applied, for example, to alloying steel plates.
従来、この種の誘導加熱装置は、第６図（ａ）（ｂ）に
示すようにコイル支持枠１内に設けられたソレノイドコ
イル２に鋼板の板厚に適した高周波電流（１〜５０ＫＨ
ｚ）を通電し、このソレノイドコイル２の中に鋼板を通
過させ、鋼板内に発生する渦電流によるジュール熱で鋼
板を誘導加熱するように構成されている。なお、図中３
は断熱材である。Conventionally, this type of induction heating device has been equipped with a solenoid coil 2 provided in a coil support frame 1, as shown in FIGS. 6(a) and 6(b).
z) is energized, a steel plate is passed through this solenoid coil 2, and the steel plate is induction heated by Joule heat due to an eddy current generated within the steel plate. In addition, 3 in the figure
is an insulating material.
ところが、このような従来装置で鋼板の誘導加熱を行な
うと、鋼板のエツジ部に磁束が集中し、第７図に示すよ
うに鋼板のエツジ部における温度分布が中央部に比べ高
くなるという問題があった。However, when induction heating of a steel plate is performed using such conventional equipment, magnetic flux concentrates at the edges of the steel plate, resulting in a problem that the temperature distribution at the edges of the steel plate is higher than that at the center, as shown in Figure 7. there were.
本発明は、このような問題点に鑑みてなされたもので、
鋼板を均一に誘導加熱することができる鋼板誘導加熱装
置を提供することを目的とするも、のである。The present invention was made in view of these problems, and
It is an object of the present invention to provide a steel plate induction heating device that can uniformly inductively heat a steel plate.
上記の課題を解決するために本発明は、ソレノイドコイ
ル内に鋼板のエツジ部に集中する磁束を緩和する磁束密
度緩和手段を設けたことを特徴とする。In order to solve the above problems, the present invention is characterized in that a magnetic flux density relaxation means for relaxing the magnetic flux concentrated at the edge portion of the steel plate is provided in the solenoid coil.
本発明は、上記の手段を購することにより、鋼板のエツ
ジ部に集中する磁束が緩和されるため、鋼板の温度分布
を均一化することができる。In the present invention, by purchasing the above-mentioned means, the magnetic flux concentrated at the edge portion of the steel plate is relaxed, so that the temperature distribution of the steel plate can be made uniform.
以下、本発明の実施例を図面を参照して説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の第１実施例を示す鋼板誘導加熱装置の
構成図で、図中１１は鋼板、１２は上記鋼板１１を高周
波により誘導加熱するソレノイドコイルである。このソ
レノイドコイル１２内の左右両側には、複数の磁束調整
リング１３が鋼板１１の進行方向に対し直角にかつ鋼板
１１のエツジ部より例えば数１０ｍｍ離してコイルピッ
チ間隔で配設されている。これらの磁束調整リング１３
は、鋼板１１のエツジ部に集中する磁束をリング内の誘
導電流によって緩和するもので、サポート１４及び駆動
ピストン１５等からなる駆動機構によりｍ１ｌｌの板幅
方向に移動可能となっている。FIG. 1 is a configuration diagram of a steel plate induction heating apparatus showing a first embodiment of the present invention. In the figure, 11 is a steel plate, and 12 is a solenoid coil for induction heating the steel plate 11 using high frequency waves. A plurality of magnetic flux adjusting rings 13 are disposed on both left and right sides of the solenoid coil 12 at right angles to the traveling direction of the steel plate 11 and spaced apart from the edge of the steel plate 11 by, for example, several tens of millimeters at coil pitch intervals. These magnetic flux adjustment rings 13
The magnetic flux concentrated at the edge portion of the steel plate 11 is relaxed by an induced current in the ring, and is movable in the width direction of the plate by a drive mechanism consisting of a support 14, a drive piston 15, etc.
第２図は上記のように措成された鋼板誘導加熱装置で鋼
板１１を誘導加熱した場合の温度分布を示すもので、同
図に示すように鋼板１１のエツジ部に集中する磁束を磁
束調整リング１３で緩和することにより、鋼板１１の温
度分布が均一化されることがわかる。Figure 2 shows the temperature distribution when the steel plate 11 is induction heated using the steel plate induction heating device configured as described above.As shown in the figure, the magnetic flux concentrated at the edge of the steel plate 11 is adjusted. It can be seen that by relaxing with the ring 13, the temperature distribution of the steel plate 11 is made uniform.
このように、ソレノイドコイル１２内の左右両側に複数
の磁束調整リング１３を鋼板１１の進行方向に対し直角
にかつ鋼板１１のエツジ部より数１０ｍａｆｆ１度離し
てコイルピッチ間隔で配設することにより、鋼板１１の
エツジ部に集中する磁束が緩和されるため、鋼板を均一
に誘導加熱することができる。In this way, by arranging the plurality of magnetic flux adjustment rings 13 on both the left and right sides of the solenoid coil 12 at right angles to the direction of movement of the steel plate 11 and spaced several tens of maf degrees away from the edge of the steel plate 11 at coil pitch intervals, Since the magnetic flux concentrated at the edge portion of the steel plate 11 is relaxed, the steel plate can be uniformly induction heated.
第３図は本発明の第２実施例を示す鋼板誘導過熱装置の
構成図で、この実施例ではソレノイドコイル１２内の左
右両側に銅からなる一対の磁気シールド板１６．１６が
鋼板１１のエツジ部を上下から挟むように互いに対向し
て配設されている。FIG. 3 is a configuration diagram of a steel plate induction heating device showing a second embodiment of the present invention. In this embodiment, a pair of magnetic shield plates 16 and 16 made of copper are installed on the left and right sides of the solenoid coil 12 at the edges of the steel plate 11. They are arranged facing each other so as to sandwich the parts from above and below.
これらの磁気シールド板１６．１６は、鋼板１１のエツ
ジ部に集中する磁束を磁気シールドによって緩和するも
ので、第１実施例と同様にサポート１４及びピストン１
５等からなる駆動機構により鋼板１１の板幅方向に移動
可能となっている。また、上記磁気シールド板１６．１
６は高さＨの鋼板通過空間を有し、板幅がＨ／２以上と
なっている。These magnetic shield plates 16.16 are used to relieve the magnetic flux concentrated at the edge portion of the steel plate 11 by magnetic shielding, and similarly to the first embodiment, the support 14 and the piston 1
It is movable in the width direction of the steel plate 11 by a drive mechanism consisting of 5 and the like. In addition, the magnetic shield plate 16.1
6 has a steel plate passing space with a height H, and the plate width is H/2 or more.
このように、ソレノイドコイル１２内の左右両側に一対
の磁気シールド板１６．１６を高さＨの鋼板通過空間を
介して対向配置することにより、鋼板１１のエツジ部に
集中する磁束が緩和されるため、第４図に示す如く鋼板
の温度分布が均一となる。In this way, by arranging the pair of magnetic shield plates 16.16 on both the left and right sides of the solenoid coil 12 so as to face each other through the steel plate passage space of height H, the magnetic flux concentrated at the edge portion of the steel plate 11 is relaxed. Therefore, the temperature distribution of the steel plate becomes uniform as shown in FIG.
なお、本発明は上記第１及び第２実施例に限定されるも
のではない。例えば、鋼板１１の寸法（板幅、板厚）変
更および蛇行による磁気シールド位置の変更に対応する
ため、第５図に示すように鋼板誘導過熱装置の出口部に
板エツジ検出装置１７及び板温度検出装＠１８を設け、
これらの検出装置１７．１８からの信号により駆動ピス
トン１５を制御するようにしてもよい。Note that the present invention is not limited to the first and second embodiments described above. For example, in order to cope with changes in the dimensions (width, thickness) of the steel plate 11 and changes in the position of the magnetic shield due to meandering, a plate edge detection device 17 and a plate temperature sensor are installed at the outlet of the steel plate induction heating device as shown in FIG. A detection device @18 is installed,
The drive piston 15 may be controlled by signals from these detection devices 17, 18.
以上説明したように本発明によれば、ソレノイドコイル
内に鋼板のエツジ部に集中する磁束を緩和する磁束密度
緩和手段を設けたので、鋼板を均一に誘導過熱すること
ができ、合金化鋼板のＦｅ濃度が均一となるため、品質
の向上を図ることができる。As explained above, according to the present invention, the magnetic flux density relaxation means for relaxing the magnetic flux concentrated at the edge portion of the steel plate is provided in the solenoid coil, so that the steel plate can be uniformly inductively heated, and the alloyed steel plate can be heated by induction. Since the Fe concentration becomes uniform, quality can be improved.
第１図は本発明の第１実施例を示す鋼板誘導過熱装置の
構成図、第２図は同装置で鋼板を誘導過熱した場合の鋼
板の温度分布を示す線図、第３図は本発明の第２実施例
を示す鋼板誘導過熱装置の構成図、第４図は同装置で鋼
板を誘導過熱した場合の鋼板の温度分布を示す線図、第
５図は本発明の第３実施例を示す鋼板誘導過熱装置の構
成図、第６図（ａ）は従来の鋼板誘導過熱装置を示す平
面図、同図（ｂ）はその正面図、第７図は従来装置で鋼
板を誘導過熱した場合の鋼板の温度分布を示す線図であ
る。
１１・・・鋼板、１２−・・ソレノイドコイル、１３−
０゜磁束調整リング、１４・・・サポート、１５・・・
駆動ピストン、１６・・・磁気シールド板。
出願人代理人 弁理士 鈴江武彦
第２図
第４図
（ａ）
（ｂ）
第６図
第７図Fig. 1 is a block diagram of a steel plate induction heating device showing a first embodiment of the present invention, Fig. 2 is a diagram showing the temperature distribution of a steel plate when the steel plate is inductively heated by the same device, and Fig. 3 is a diagram showing the invention of the present invention. Fig. 4 is a diagram showing the temperature distribution of a steel plate when a steel plate is inductively heated by the same equipment, and Fig. 5 is a diagram showing the temperature distribution of a steel plate according to a third embodiment of the present invention. Fig. 6(a) is a plan view showing a conventional steel plate induction heating apparatus, Fig. 6(b) is a front view thereof, and Fig. 7 is a case where a steel plate is induction heated by the conventional apparatus. FIG. 2 is a diagram showing the temperature distribution of a steel plate. 11... Steel plate, 12-... Solenoid coil, 13-
0° magnetic flux adjustment ring, 14... support, 15...
Drive piston, 16...magnetic shield plate. Applicant's agent Patent attorney Takehiko Suzue Figure 2 Figure 4 (a) (b) Figure 6 Figure 7
Claims (1)
過させ、鋼板内に発生する渦電流によるジュール熱で鋼
板を誘導加熱する鋼板誘導加熱装置において、前記ソレ
ノイドコイル内に鋼板のエッジ部に集中する磁束を緩和
する磁束密度緩和手段を設けたことを特徴とする鋼板誘
導加熱装置。In a steel plate induction heating device that passes a steel plate through a solenoid coil energized with high-frequency current, and inductively heats the steel plate with Joule heat generated by eddy currents generated within the steel plate, magnetic flux concentrates at the edge of the steel plate within the solenoid coil. A steel plate induction heating device characterized by being provided with a magnetic flux density relaxation means for relaxing the magnetic flux density.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63056343A JPH01232685A (en) | 1988-03-11 | 1988-03-11 | Induction heating device for steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63056343A JPH01232685A (en) | 1988-03-11 | 1988-03-11 | Induction heating device for steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01232685A true JPH01232685A (en) | 1989-09-18 |
Family
ID=13024585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63056343A Pending JPH01232685A (en) | 1988-03-11 | 1988-03-11 | Induction heating device for steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01232685A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04362143A (en) * | 1991-06-05 | 1992-12-15 | Daido Steel Co Ltd | Continuous heater for metallic strip |
| JP2001118669A (en) * | 1999-10-15 | 2001-04-27 | Japan Science & Technology Corp | Method and apparatus of electromagnetic heating |
| KR100311801B1 (en) * | 1997-12-20 | 2001-11-22 | 마스다 노부유키 | Impedance matching device, high frequency heating equipment, induction heating galvanized steel sheet alloying line and impedance conversion method |
| JP2002110336A (en) * | 2000-09-27 | 2002-04-12 | Fuji Xerox Co Ltd | Electromagnetic induction heating device and image recording device using the same |
| JP2002212628A (en) * | 2001-01-12 | 2002-07-31 | Nippon Steel Corp | Device for heating edge parts of steel plate |
| JP2002317227A (en) * | 2001-04-20 | 2002-10-31 | Nkk Corp | Heat treatment method for steel sheet and apparatus therefor |
| JP2005063753A (en) * | 2003-08-08 | 2005-03-10 | Japan Ajax Magnethermic Co Ltd | Induction heating device and induction heating method |
| JP2005522014A (en) * | 2002-04-04 | 2005-07-21 | セレス | Improvement of heating inductors, especially for metal strip products |
| JP2005281778A (en) * | 2004-03-30 | 2005-10-13 | High Frequency Heattreat Co Ltd | Induction heating apparatus and induction heating method |
| JP2006068788A (en) * | 2004-09-03 | 2006-03-16 | Nippon Steel Corp | Method for heating steel belt excellent in uniform heating performance in width direction |
| JP2006523364A (en) * | 2003-03-07 | 2006-10-12 | セレス | Heating device for metal strip by electromagnetic induction |
| JP2006294396A (en) * | 2005-04-11 | 2006-10-26 | Shimada Phys & Chem Ind Co Ltd | Induction heating device |
| JP2007122924A (en) * | 2005-10-25 | 2007-05-17 | Shimada Phys & Chem Ind Co Ltd | Induction heating device |
| EP3077562B1 (en) | 2013-12-06 | 2019-03-06 | Fives Celes | Continuous processing line for processing a non-magnetic metal strip including a galvannealing section and method for induction heating of said strip in said galvannealing section |
| JP2019179733A (en) * | 2018-03-30 | 2019-10-17 | Ｊｆｅスチール株式会社 | Induction heating device of metal band, method for manufacturing metal band, and method for manufacturing hot-dip galvanized steel sheet |
| JP2020017397A (en) * | 2018-07-25 | 2020-01-30 | 日本製鉄株式会社 | Induction heating equipment for metal strip |
-
1988
- 1988-03-11 JP JP63056343A patent/JPH01232685A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04362143A (en) * | 1991-06-05 | 1992-12-15 | Daido Steel Co Ltd | Continuous heater for metallic strip |
| KR100311801B1 (en) * | 1997-12-20 | 2001-11-22 | 마스다 노부유키 | Impedance matching device, high frequency heating equipment, induction heating galvanized steel sheet alloying line and impedance conversion method |
| JP2001118669A (en) * | 1999-10-15 | 2001-04-27 | Japan Science & Technology Corp | Method and apparatus of electromagnetic heating |
| JP2002110336A (en) * | 2000-09-27 | 2002-04-12 | Fuji Xerox Co Ltd | Electromagnetic induction heating device and image recording device using the same |
| JP2002212628A (en) * | 2001-01-12 | 2002-07-31 | Nippon Steel Corp | Device for heating edge parts of steel plate |
| JP2002317227A (en) * | 2001-04-20 | 2002-10-31 | Nkk Corp | Heat treatment method for steel sheet and apparatus therefor |
| JP2005522014A (en) * | 2002-04-04 | 2005-07-21 | セレス | Improvement of heating inductors, especially for metal strip products |
| JP2006523364A (en) * | 2003-03-07 | 2006-10-12 | セレス | Heating device for metal strip by electromagnetic induction |
| JP2005063753A (en) * | 2003-08-08 | 2005-03-10 | Japan Ajax Magnethermic Co Ltd | Induction heating device and induction heating method |
| JP2005281778A (en) * | 2004-03-30 | 2005-10-13 | High Frequency Heattreat Co Ltd | Induction heating apparatus and induction heating method |
| JP2006068788A (en) * | 2004-09-03 | 2006-03-16 | Nippon Steel Corp | Method for heating steel belt excellent in uniform heating performance in width direction |
| JP2006294396A (en) * | 2005-04-11 | 2006-10-26 | Shimada Phys & Chem Ind Co Ltd | Induction heating device |
| JP2007122924A (en) * | 2005-10-25 | 2007-05-17 | Shimada Phys & Chem Ind Co Ltd | Induction heating device |
| EP3077562B1 (en) | 2013-12-06 | 2019-03-06 | Fives Celes | Continuous processing line for processing a non-magnetic metal strip including a galvannealing section and method for induction heating of said strip in said galvannealing section |
| JP2019179733A (en) * | 2018-03-30 | 2019-10-17 | Ｊｆｅスチール株式会社 | Induction heating device of metal band, method for manufacturing metal band, and method for manufacturing hot-dip galvanized steel sheet |
| JP2020017397A (en) * | 2018-07-25 | 2020-01-30 | 日本製鉄株式会社 | Induction heating equipment for metal strip |
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