JPH09105583A - Inductive heating type heat treatment device - Google Patents
Inductive heating type heat treatment deviceInfo
- Publication number
- JPH09105583A JPH09105583A JP28676995A JP28676995A JPH09105583A JP H09105583 A JPH09105583 A JP H09105583A JP 28676995 A JP28676995 A JP 28676995A JP 28676995 A JP28676995 A JP 28676995A JP H09105583 A JPH09105583 A JP H09105583A
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- Prior art keywords
- heated
- coils
- heat treatment
- coil
- interference
- Prior art date
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は誘導加熱型熱処理装
置、特に誘導加熱される中空の被加熱体の中に被処理物
を通過させることにより、熱処理を行う熱処理装置に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an induction heating type heat treatment apparatus, and more particularly to a heat treatment apparatus for performing heat treatment by passing an object to be processed through a hollow object to be heated.
【０００２】[0002]
【従来の技術】従来、円筒形の金属製被加熱体の周囲に
コイルを巻装し、コイルに交流電流を供給することによ
り被加熱体を誘導加熱し、この被加熱体の中に被処理物
を通過させることにより、熱処理を行う熱処理装置が知
られている（特開昭５７−１１５６７０号公報）。2. Description of the Related Art Conventionally, a coil is wound around a cylindrical metal object to be heated, and an object to be heated is induction-heated by supplying an alternating current to the coil. A heat treatment apparatus for performing heat treatment by passing an object is known (Japanese Patent Laid-Open No. 57-115670).
【０００３】この熱処理装置の場合には、被加熱体の内
面にらせん状の突条が形成され、被加熱体の一端から供
給された被処理物は、被加熱体の回転に伴って突条によ
って他端側へ運ばれ、被処理物が被加熱体の中を通過す
る間に熱処理される。特に、被加熱体の周囲には、軸線
方向に間隔を開けて複数のコイルが巻装されており、こ
れらコイルに個別に電流を供給することにより、被加熱
体をその長さに沿って異なる温度に加熱できる。なお、
隣合うコイルの間に繊維性絶縁材料のリングを配置し、
熱の伝達を防止している。In the case of this heat treatment apparatus, a spiral ridge is formed on the inner surface of the object to be heated, and the object to be treated supplied from one end of the object to be heated ridges as the object to be heated rotates. Is carried to the other end side and is heat-treated while the object to be processed passes through the object to be heated. In particular, a plurality of coils are wound around the object to be heated at intervals in the axial direction, and the objects to be heated are varied along their length by individually supplying current to these coils. Can be heated to temperature. In addition,
Place a ring of fibrous insulating material between adjacent coils,
Prevents heat transfer.
【０００４】[0004]
【発明が解決しようとする課題】誘導加熱は、周知のと
おり、コイルに電流が流れると、磁場が発生し、この磁
場の中にある金属製被加熱体にうず電流を発生させ、被
加熱体を自身の電気抵抗によって発熱させるものであ
る。しかしながら、上記のような熱処理装置の場合、隣
合うコイル間で磁場が干渉し合い、コイル同士に電磁誘
導による起電力が発生するため、電源回路の負荷が増大
し、最悪の場合には電源回路が破損する恐れがあった。
この問題は、コイルの間に絶縁リングを配置しても、全
く効果がない。As is well known, in induction heating, when a current flows through a coil, a magnetic field is generated, and an eddy current is generated in a metal heated object in this magnetic field, and the heated object is heated. Is generated by its own electric resistance. However, in the case of the heat treatment apparatus as described above, magnetic fields interfere with each other between adjacent coils, and electromotive force due to electromagnetic induction is generated between the coils, so that the load of the power supply circuit increases and, in the worst case, the power supply circuit. Could be damaged.
This problem has no effect if an insulating ring is placed between the coils.
【０００５】そこで、本発明の目的は、被加熱体を長さ
方向に複数の温度にかつ高い精度で加熱できる誘導加熱
型熱処理装置を提供することにある。また、他の目的
は、隣合うコイル間の磁場の干渉を防止し、電源回路の
負荷を軽減できる誘導加熱型熱処理装置を提供すること
にある。Therefore, an object of the present invention is to provide an induction heating type heat treatment apparatus capable of heating an object to be heated to a plurality of temperatures in the length direction with high accuracy. Another object of the present invention is to provide an induction heating type heat treatment apparatus capable of preventing magnetic field interference between adjacent coils and reducing the load on the power supply circuit.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、中空の金属製被加熱体の周囲に、被加熱
体の軸線方向に間隔をあけて複数のコイルを巻装し、こ
れらコイルに個別に交流電流を供給することにより被加
熱体を誘導加熱し、この被加熱体の中に被処理物を通過
させることによって熱処理を行う熱処理装置において、
上記各コイルの間に、隣合うコイル同士の相互干渉を防
止する磁性体よりなる干渉防止部材を配置し、上記コイ
ルによって被加熱体の各部の温度を独立して制御可能と
したものである。In order to achieve the above-mentioned object, the present invention has a plurality of coils wound around a hollow metallic object to be heated at intervals in the axial direction of the object. In a heat treatment apparatus for induction-heating an object to be heated by individually supplying an alternating current to these coils, and performing heat treatment by passing the object to be processed into the object to be heated,
An interference prevention member made of a magnetic material that prevents mutual interference between adjacent coils is arranged between the coils, and the temperature of each part of the heated object can be independently controlled by the coils.
【０００７】被加熱体の軸線方向に間隔をあけて複数の
コイルを巻装し、これらコイルに交流電流を供給する
と、被加熱体は各コイルによって誘導加熱され、被加熱
体をその長さ方向に異なる温度に加熱できる。このと
き、隣合うコイル間で磁場が干渉し合うが、コイル間に
配置された干渉防止部材が隣のコイルへの磁場の影響を
軽減し、コイル同士の電磁誘導による起電力の発生を抑
制できる。そのため、電源回路の負荷が軽減される。ま
た、コイル同士の電磁誘導による影響が少ないので、被
加熱体の各部を独立して、かつ高精度に温度制御でき
る。When a plurality of coils are wound at intervals in the axial direction of the object to be heated and an alternating current is supplied to these coils, the object to be heated is induction-heated by each coil and the object to be heated is longitudinally moved. Can be heated to different temperatures. At this time, the magnetic fields interfere with each other between adjacent coils, but the interference prevention member arranged between the coils reduces the influence of the magnetic field on the adjacent coils, and suppresses the generation of electromotive force due to electromagnetic induction between the coils. . Therefore, the load on the power supply circuit is reduced. Further, since the influence of electromagnetic induction between the coils is small, it is possible to control the temperature of each part of the object to be heated independently and with high accuracy.
【０００８】干渉防止部材の材料としては、フェライト
のような磁性体や、Ｆｅ，Ｎｉのような強磁性金属を用
いることができる。また、干渉防止部材の形状は、隣合
うコイル間の磁界の漏れを少なくするため、被加熱体の
全周を取り囲む環状とするのが望ましい。干渉防止部材
を環状に形成するのが困難な場合には、複数の干渉防止
部材を環状に配列してもよい。干渉防止部材を薄肉に形
成した場合には、隣合うコイルの間隔を小さくできる。
したがって、あるコイルの温度ゾーンから隣のコイルの
温度ゾーンへ被処理物が移行する際、その中間ゾーンを
狭くでき、中間ゾーンでの温度低下を防止できる。As the material of the interference prevention member, a magnetic substance such as ferrite or a ferromagnetic metal such as Fe or Ni can be used. The shape of the interference prevention member is preferably an annular shape that surrounds the entire circumference of the object to be heated in order to reduce the leakage of the magnetic field between the adjacent coils. When it is difficult to form the interference prevention member in a ring shape, a plurality of interference prevention members may be arranged in a ring shape. When the interference prevention member is formed thin, the distance between adjacent coils can be reduced.
Therefore, when the object to be processed moves from the temperature zone of a certain coil to the temperature zone of the adjacent coil, the intermediate zone can be narrowed and the temperature drop in the intermediate zone can be prevented.
【０００９】[0009]
【発明の実施の形態】図１，図２は本発明にかかる誘導
加熱型熱処理装置の一例を示す。１は円筒形金属よりな
る被加熱体であり、例えばステンレス鋼、チタンおよび
チタン合金、耐熱性の高いＮｉ基合金などを使用でき
る。被加熱体１はその両端部が回転ローラ２で支持さ
れ、かつ終端部１ｂが始端部１ａより下方になるように
若干（例えばθ＝５°）傾斜した状態で設置されてい
る。ローラ２は図示しないモータにより駆動され、始端
部１ａより供給された被処理物Ｗは被加熱体１の中を通
過する間に攪拌されながら熱処理され、終端部１ｂより
排出される。1 and 2 show an example of an induction heating type heat treatment apparatus according to the present invention. Reference numeral 1 denotes an object to be heated made of a cylindrical metal, and for example, stainless steel, titanium and titanium alloys, Ni-base alloys having high heat resistance, etc. can be used. Both ends of the object 1 to be heated are supported by the rotating rollers 2, and the end 1b is installed in a state of being slightly inclined (for example, θ = 5 °) so as to be lower than the start end 1a. The roller 2 is driven by a motor (not shown), and the workpiece W supplied from the starting end portion 1a is heat-treated while being agitated while passing through the heated body 1, and is discharged from the terminal end portion 1b.
【００１０】被加熱体１の外周は円筒形の絶縁性断熱材
３で覆われており、この断熱材３の周囲に軸線方向に間
隔をあけて複数（この実施例では２個）のコイル４，５
が巻装されている。断熱材３は一定位置に固定されてお
り、コイル４，５は断熱材３によって被加熱体１の輻射
熱から保護されている。コイル４，５はそれぞれインバ
ータ電源などの交流電源回路６，７に接続され、これら
電源回路６，７には被加熱体１の各部の温度を検出する
温度検出器８，９が接続されている。温度検出器８，９
としては、熱電対や放射温度計等を用いることができ
る。電源回路６，７は温度検出器８，９で検出された被
加熱体１の温度をフィードバックすることにより、コイ
ル４，５に流す電流を制御し、被加熱体１の前段部と後
段部とを目的とする温度に加熱する。The outer periphery of the object to be heated 1 is covered with a cylindrical insulating heat insulating material 3, and a plurality (two in this embodiment) of coils 4 are provided around the heat insulating material 3 at intervals in the axial direction. , 5
Is wound. The heat insulating material 3 is fixed at a fixed position, and the coils 4 and 5 are protected by the heat insulating material 3 from the radiant heat of the heated object 1. The coils 4 and 5 are connected to AC power supply circuits 6 and 7 such as an inverter power supply, and the power supply circuits 6 and 7 are connected to temperature detectors 8 and 9 for detecting the temperature of each part of the heated body 1. . Temperature detector 8, 9
As such, a thermocouple, a radiation thermometer, or the like can be used. The power supply circuits 6 and 7 feed back the temperature of the object to be heated 1 detected by the temperature detectors 8 and 9 to control the currents flowing through the coils 4 and 5, and the front and rear parts of the object to be heated 1 are controlled. To the desired temperature.
【００１１】断熱材３の外周であって、かつコイル４，
５の中間部には、干渉防止部材１０が取り付けられてい
る。この実施例の干渉防止部材１０は、図３に示すよう
に複数個のフェライト製磁性板１０ａを円環状に配列し
たものであるが、円環状の磁性板を用いてもよい。The outer circumference of the heat insulating material 3 and the coils 4,
An interference prevention member 10 is attached to an intermediate portion of the member 5. As shown in FIG. 3, the interference prevention member 10 of this embodiment is formed by arranging a plurality of ferrite magnetic plates 10a in an annular shape, but an annular magnetic plate may be used.
【００１２】次に、上記構成の熱処理装置の作動を説明
する。まず、ローラ２を駆動して被加熱体１を一方向に
一定速度で回転させる。そして、コイル４，５に電源回
路６，７から個別に交流電流を供給し、被加熱体１の前
段部と後段部とをそれぞれの温度に誘導加熱する。加熱
された被加熱体１の始端部１ａより被処理物Ｗを投入す
ると、被処理物Ｗは被加熱体１の回転に伴って回転・攪
拌されながら終端部１ｂへと送られる。被加熱体１の中
を通過する間に被処理物Ｗは複数段階で熱処理が行わ
れ、終端部１ｂから熱処理済みの被処理物が自動的に排
出される。Next, the operation of the heat treatment apparatus having the above structure will be described. First, the roller 2 is driven to rotate the heated body 1 in one direction at a constant speed. Then, alternating currents are individually supplied to the coils 4 and 5 from the power supply circuits 6 and 7, and the front-stage part and the rear-stage part of the object to be heated 1 are induction-heated to their respective temperatures. When the object W to be processed is introduced from the starting end 1a of the heated object 1, the object W is sent to the terminal end 1b while being rotated and stirred as the object 1 is rotated. The object W to be processed is subjected to heat treatment in a plurality of stages while passing through the object 1 to be heated, and the object to be heat treated is automatically discharged from the terminal end portion 1b.
【００１３】上記コイル４，５に交流電流を供給した
時、隣合うコイル４，５の部分で磁場干渉が起こり、互
いの電磁誘導によりコイル４，５に誘導起電力が発生
し、電源回路６，７の負担が増す恐れがある。しかしな
がら、本発明ではコイル４，５の間に干渉防止部材１０
を配置しているので、一方のコイルの磁場が他方のコイ
ルに及ぶのを抑制でき、電源回路６，７の負担を軽減で
きる。その結果、電源回路６，７の破損を防止できる。
また、コイル４，５間の干渉が少なくなることから、コ
イル４，５に対応する被加熱体１の前段部と後段部の温
度を高精度に制御でき、エネルギー効率が高く、効率の
よい熱処理が可能となる。When an alternating current is supplied to the coils 4 and 5, magnetic field interference occurs between adjacent coils 4 and 5 and induced electromotive force is generated in the coils 4 and 5 due to mutual electromagnetic induction. , 7 may increase the burden. However, in the present invention, the interference prevention member 10 is provided between the coils 4 and 5.
Are arranged, the magnetic field of one coil can be suppressed from reaching the other coil, and the load on the power supply circuits 6 and 7 can be reduced. As a result, damage to the power supply circuits 6 and 7 can be prevented.
Further, since the interference between the coils 4 and 5 is reduced, it is possible to control the temperature of the front stage and the rear stage of the object to be heated 1 corresponding to the coils 4 and 5 with high accuracy, and the heat treatment with high energy efficiency and high efficiency is achieved. Is possible.
【００１４】[0014]
【実施例】本発明者は、干渉防止部材の効果を測定する
ため、次のような実験を行った。まず、被加熱体１とし
て外径が３００ｍｍ、長さが１０００ｍｍのステンレス
鋼よりなる円筒を用いた。また、干渉防止部材１０とし
て２種類の長方形フェライト板を環状に配列した場合と
磁性板１０を使用しなかった場合とについて、一方のコ
イル４に５００Ｖ，２５ｋＨｚの交流電流を供給したと
き、他方のコイル５に発生する誘導起電力を測定した。
なお、この実験で使用したフェライトの透磁率μは６０
０、キュリー温度Ｔｃは１２０℃である。EXAMPLE The present inventor conducted the following experiment in order to measure the effect of the interference prevention member. First, as the heated body 1, a cylinder made of stainless steel having an outer diameter of 300 mm and a length of 1000 mm was used. Further, when two types of rectangular ferrite plates are arranged as the interference prevention member 10 in an annular shape and when the magnetic plate 10 is not used, when one coil 4 is supplied with an alternating current of 500 V and 25 kHz, The induced electromotive force generated in the coil 5 was measured.
The permeability μ of the ferrite used in this experiment is 60
0, Curie temperature Tc is 120 ° C.
【００１５】干渉防止部材１０を使用しない場合、他方
のコイル５に発生する誘導起電力は約５００Ｖ，２５ｋ
Ｈｚ、つまり一方のコイル４に供給された交流電流とほ
ぼ同程度の交流電流が得られた。これに対し、高さ３０
ｍｍ，幅３０ｍｍ，厚み５ｍｍのフェライト板を用いた
場合には、他方のコイルに発生する誘導起電力は１１０
Ｖ，２５ｋＨｚに下がった。さらに、高さ６０ｍｍ，幅
３０ｍｍ，厚み５ｍｍのフェライト板を用いた場合に
は、他方のコイルに発生する誘導起電力は４０Ｖ，２５
ｋＨｚとなった。When the interference prevention member 10 is not used, the induced electromotive force generated in the other coil 5 is about 500V, 25k.
Hz, that is, an alternating current substantially equal to the alternating current supplied to one coil 4 was obtained. On the other hand, height 30
When a ferrite plate having a width of 30 mm, a width of 30 mm and a thickness of 5 mm is used, the induced electromotive force generated in the other coil is 110.
V, down to 25 kHz. Furthermore, when a ferrite plate having a height of 60 mm, a width of 30 mm and a thickness of 5 mm is used, the induced electromotive force generated in the other coil is 40 V, 25
It became kHz.
【００１６】以上の結果から明らかなように、干渉防止
部材として磁性板１０を用いると、コイル４，５間の磁
場の干渉を抑制でき、コイル同士の電磁誘導による起電
力の発生を抑制できた。そのため、電源回路の負荷が軽
減された。なお、磁性板１０の形状を種々変更した場合
についても実験したところ、磁性板１０の厚みは干渉防
止効果に殆ど差異がなく、磁性板１０の高さ（半径方
向）が最も大きな影響を及ぼすことがわかった。したが
って、出来るだけ磁性板１０の高さを高くするのが望ま
しい。As is clear from the above results, when the magnetic plate 10 is used as the interference prevention member, the interference of the magnetic field between the coils 4 and 5 can be suppressed, and the generation of electromotive force due to the electromagnetic induction between the coils can be suppressed. . Therefore, the load on the power supply circuit is reduced. It is to be noted that, when experiments were carried out when the shape of the magnetic plate 10 was variously changed, the thickness of the magnetic plate 10 showed almost no difference in the interference prevention effect, and the height (radial direction) of the magnetic plate 10 had the greatest influence. I understood. Therefore, it is desirable to make the height of the magnetic plate 10 as high as possible.
【００１７】なお、図１の熱処理装置は、例えばＰＶＡ
系樹脂を含んだセラミックスについて、樹脂成分の除去
処理に用いることができる。この場合には、前段のコイ
ル４側を樹脂が分解する２５０〜３００℃とし、後段の
コイル５側を樹脂が完全に燃焼する約５００℃に設定す
ればよい。低温のコイル４側から被処理物を投入する
と、高温のコイル５側より自動的に被処理物を排出でき
る。The heat treatment apparatus shown in FIG.
Ceramics containing a system resin can be used for removing the resin component. In this case, the coil 4 side of the former stage may be set to 250 to 300 ° C. where the resin decomposes, and the coil 5 side of the latter stage may be set to about 500 ° C. where the resin is completely burned. When the object to be treated is introduced from the low temperature coil 4 side, the object to be treated can be automatically discharged from the high temperature coil 5 side.
【００１８】また、この熱処理装置は、樹脂を含んだセ
ラミックスの焼成処理の他、比較的低温で合成できるＮ
ｉ−Ｚｎフェライトのスピネル相（６００〜７００℃）
の合成、Ｐｂ系複合ペロブスカイト材料のペロブスカイ
ト相（７００〜８００℃）の合成などにも適している。
この場合には、前段のコイル４側の温度を乾燥ゾーンと
して４００〜５００℃に設定し、後段のコイル５側を合
成ゾーンとして約７００℃に設定すればよい。この場
合、前段は乾燥の他、被処理物の予熱も行うので、合成
の安定性，バラツキの減少に役立つ。Further, this heat treatment apparatus is capable of synthesizing ceramics containing resin and N which can be synthesized at a relatively low temperature.
Spinel phase of i-Zn ferrite (600-700 ° C)
Is also suitable for the synthesis of the perovskite phase (700 to 800 ° C.) of the Pb-based composite perovskite material.
In this case, the temperature on the coil 4 side in the former stage may be set to 400 to 500 ° C. as the drying zone, and the temperature on the coil 5 side in the latter stage may be set to about 700 ° C. as the synthesis zone. In this case, in the former stage, not only drying but also preheating of the object to be treated is performed, which is useful for stability of synthesis and reduction of variation.
【００１９】被加熱体の形状は、実施例のような円筒形
状に限らず、角筒形、円錐形、角錐形など如何なる形状
であってもよく、一端側から被処理物を投入でき、他端
側から被処理物を排出できる形状であればよい。また、
被加熱体の内壁に、螺旋状の突条を設けたり、攪拌用の
突起を設けてもよい。被加熱体は、回転されるものに限
らず、一定位置に固定されたものでもよい。固定形の場
合、被加熱体の内部で被処理物を搬送するための手段と
して、振動あるいはプッシャ等の排出用治具を用いてい
もよい。The shape of the object to be heated is not limited to the cylindrical shape as in the embodiment, but may be any shape such as a prismatic tube shape, a conical shape, a pyramidal shape, and the object to be treated can be put in from one end side, and the like. Any shape may be used as long as it can discharge the object to be processed from the end side. Also,
A spiral projection or a stirring projection may be provided on the inner wall of the object to be heated. The object to be heated is not limited to being rotated but may be fixed at a fixed position. In the case of the fixed type, a discharging jig such as a vibration or a pusher may be used as a means for transporting the object to be processed inside the object to be heated.
【００２０】[0020]
【発明の効果】以上の説明で明らかなように、本発明に
よれば、被加熱体の外周に軸線方向に間隔をあけて巻装
されたコイルの間に干渉防止部材を介在させることによ
り、コイル同士の電磁誘導による起電力の発生を抑制し
たので、電源回路の負荷が軽減され、電源回路の破損を
防止できる。また、コイルに個別の電流を流すことによ
り、コイルによって被加熱体を長さ方向に独立して温度
制御できるため、１つの被加熱体の中で連続的にかつ複
数段階の熱処理が可能となる。As is apparent from the above description, according to the present invention, the interference preventing member is interposed between the coils wound around the outer periphery of the object to be heated at intervals in the axial direction. Since the generation of electromotive force due to electromagnetic induction between the coils is suppressed, the load on the power supply circuit is reduced, and damage to the power supply circuit can be prevented. Moreover, since the temperature of the object to be heated can be independently controlled in the length direction by passing the individual currents through the coil, it is possible to perform continuous and multi-step heat treatment in one object to be heated. .
【図１】本発明にかかる熱処理装置の正面図である。FIG. 1 is a front view of a heat treatment apparatus according to the present invention.
【図２】図１の熱処理装置の縦断面図である。2 is a vertical cross-sectional view of the heat treatment apparatus of FIG.
【図３】図１のＡ−Ａ線断面図である。FIG. 3 is a sectional view taken along line AA of FIG. 1;
１ 被加熱体 ３ 絶縁性断熱材 ４，５ コイル ６，７ 交流電源回路 １０ 干渉防止部材 DESCRIPTION OF SYMBOLS 1 Heated object 3 Insulating heat insulating material 4,5 Coil 6,7 AC power supply circuit 10 Interference prevention member
Claims (1)
の軸線方向に間隔をあけて複数のコイルを巻装し、これ
らコイルに個別に交流電流を供給することにより被加熱
体を誘導加熱し、この被加熱体の中に被処理物を通過さ
せることによって熱処理を行う熱処理装置において、 上記各コイルの間に、隣合うコイル同士の相互干渉を防
止する磁性体よりなる干渉防止部材を配置し、上記コイ
ルによって被加熱体の各部の温度を独立して制御可能と
した誘導加熱型熱処理装置。A plurality of coils are wound around a hollow metallic object to be heated at intervals in the axial direction of the object to be heated, and an alternating current is individually supplied to these coils to be heated. In a heat treatment apparatus for performing heat treatment by inductively heating an object and passing an object to be processed through the object to be heated, an interference prevention member made of a magnetic material for preventing mutual interference between adjacent coils between the coils. An induction heating type heat treatment apparatus in which members are arranged and the temperature of each part of the object to be heated can be independently controlled by the coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28676995A JPH09105583A (en) | 1995-10-05 | 1995-10-05 | Inductive heating type heat treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28676995A JPH09105583A (en) | 1995-10-05 | 1995-10-05 | Inductive heating type heat treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09105583A true JPH09105583A (en) | 1997-04-22 |
Family
ID=17708816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28676995A Pending JPH09105583A (en) | 1995-10-05 | 1995-10-05 | Inductive heating type heat treatment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09105583A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003095794A (en) * | 2001-09-19 | 2003-04-03 | Bridgestone Corp | Silicon carbide single crystal and method of producing the same |
| JP2004127854A (en) * | 2002-10-07 | 2004-04-22 | Dai Ichi High Frequency Co Ltd | Moving heating method and moving heating device |
| JP2007132552A (en) * | 2005-11-08 | 2007-05-31 | Kyudenko Corp | Heating device for waste gypsum |
| JP2010236822A (en) * | 2009-03-31 | 2010-10-21 | Johnan Corp | Heating rotary furnace |
| JP2011145004A (en) * | 2010-01-14 | 2011-07-28 | Takasago Ind Co Ltd | Rotary kiln |
| JP2012255891A (en) * | 2011-06-08 | 2012-12-27 | Ricoh Co Ltd | Method of manufacturing electrophotographic carrier, electrophotographic carrier, electrophotographic developer, process cartridge, and image forming device |
| CN114838565A (en) * | 2022-04-11 | 2022-08-02 | 黑龙江省农业机械工程科学研究院佳木斯分院 | Movable electromagnetic heating dryer |
-
1995
- 1995-10-05 JP JP28676995A patent/JPH09105583A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003095794A (en) * | 2001-09-19 | 2003-04-03 | Bridgestone Corp | Silicon carbide single crystal and method of producing the same |
| JP2004127854A (en) * | 2002-10-07 | 2004-04-22 | Dai Ichi High Frequency Co Ltd | Moving heating method and moving heating device |
| JP2007132552A (en) * | 2005-11-08 | 2007-05-31 | Kyudenko Corp | Heating device for waste gypsum |
| JP2010236822A (en) * | 2009-03-31 | 2010-10-21 | Johnan Corp | Heating rotary furnace |
| JP2011145004A (en) * | 2010-01-14 | 2011-07-28 | Takasago Ind Co Ltd | Rotary kiln |
| JP2012255891A (en) * | 2011-06-08 | 2012-12-27 | Ricoh Co Ltd | Method of manufacturing electrophotographic carrier, electrophotographic carrier, electrophotographic developer, process cartridge, and image forming device |
| CN114838565A (en) * | 2022-04-11 | 2022-08-02 | 黑龙江省农业机械工程科学研究院佳木斯分院 | Movable electromagnetic heating dryer |
| CN114838565B (en) * | 2022-04-11 | 2024-04-09 | 黑龙江省农业机械工程科学研究院佳木斯分院 | Portable electromagnetic heating drying-machine |
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