JP2017066473A - Continuous heat treatment facility of metal wire body and continuous heat treatment method - Google Patents

Continuous heat treatment facility of metal wire body and continuous heat treatment method Download PDF

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JP2017066473A
JP2017066473A JP2015192569A JP2015192569A JP2017066473A JP 2017066473 A JP2017066473 A JP 2017066473A JP 2015192569 A JP2015192569 A JP 2015192569A JP 2015192569 A JP2015192569 A JP 2015192569A JP 2017066473 A JP2017066473 A JP 2017066473A
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frequency induction
induction heating
metal linear
heat treatment
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功次郎 石井
Kojiro Ishii
功次郎 石井
栄嗣 真砂
Eiji Masago
栄嗣 真砂
鎗田 博
Hiroshi Shoda
博 鎗田
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Nippon Steel SG Wire Co Ltd
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Nippon Steel and Sumikin SG Wire Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a continuous heat treatment facility of a metal wire body capable of sufficiently increasing line speed in a heat treatment of the metal wire body and a continuous heat treatment method.SOLUTION: Because of including a high frequency induction heating device 1 for heating a metal wire body K to a Curie point temperature and a radiation type heating furnace 2 for heating the same to austenitizing temperature, a heating speed for heating the metal wire body K to the temperature is increased compared to a case only with a radiation furnace heating method and a heating speed for heating the metal wire body K from the temperature (Curie point temperature) to the austenitizing temperature is increased compared to a case only with a high frequency induction heating method. Therefore a linear velocity, i.e. a line speed, in the heat treatment of the metal wire body K can be increased. As the metal wire body K is tempered by a high frequency induction tempering device 4, a tempering temperature can be controlled easily. Therefore the metal wire body K can be heat treated appropriately.SELECTED DRAWING: Figure 1

Description

本発明は、ばね用の金属線状体の連続熱処理設備および連続熱処理方法に関する。   The present invention relates to a continuous heat treatment facility and a continuous heat treatment method for a metal wire for a spring.

冷間加工用のばね用オイルテンパー線となる金属線状体の連続熱処理方法には、複数の金属線状体を同時にガス加熱炉あるいは電気炉などの加熱炉でオーステナイト化温度まで加熱して、その後焼入れ、次に溶融鉛や電気炉、流動床炉などを用いて焼戻しを連続で行う、いわゆる輻射炉加熱方式(例えば、特許文献1参照)と、1本の金属線状体を高周波誘導でオーステナイト領域まで加熱して、均熱炉を通し、焼入れ、次に高周波加熱と均熱炉で焼戻しを行う、いわゆる高周波誘導加熱方式(例えば、特許文献2参照)とがある。   In the continuous heat treatment method of a metal linear body that becomes an oil temper wire for a spring for cold working, a plurality of metal linear bodies are simultaneously heated to an austenitizing temperature in a heating furnace such as a gas heating furnace or an electric furnace, Then, quenching, then tempering continuously using molten lead, electric furnace, fluidized bed furnace, etc., so-called radiant furnace heating method (see, for example, Patent Document 1) and one metal wire by high frequency induction There is a so-called high-frequency induction heating method (for example, see Patent Document 2) in which heating is performed up to the austenite region, passing through a soaking furnace, quenching, and then induction heating and tempering in a soaking furnace.

前記輻射炉加熱方式による連続熱処理設備の一例について図7を参照して説明する。この連続熱処理設備は、金属線状体Kをオーステナイト化温度まで加熱する、ガス加熱炉あるいは電気炉などの輻射式加熱炉2と、この輻射式加熱炉2の後段に設けられて、油、水、水溶性焼入れ媒体等を用いて金属線状体Kに焼入れを行う焼入れ装置3と、この焼入れ装置3の後段に設けられて、溶融鉛や電気炉や流動床炉などを用いて金属線状体Kに焼戻しを行う焼戻し炉4とを備えている。   An example of a continuous heat treatment facility using the radiation furnace heating method will be described with reference to FIG. This continuous heat treatment equipment is provided in a radiant heating furnace 2 such as a gas heating furnace or an electric furnace that heats the metal linear body K to the austenitizing temperature, and in the subsequent stage of the radiant heating furnace 2, oil, water , A quenching apparatus 3 that quenches the metal linear body K using a water-soluble quenching medium, and the like, and is provided in a subsequent stage of the quenching apparatus 3 and uses a molten lead, an electric furnace, a fluidized bed furnace, or the like And a tempering furnace 4 for tempering the body K.

また、前記高周波誘導加熱方式による連続熱処理設備の一例について図8を参照して説明する。この連続熱処理設備は、金属線状体Kをオーステナイト化温度まで加熱する高周波誘導加熱装置1と、この高周波誘導加熱装置1の後段に設けられて、金属線状体Kを均熱するガス炉や電気炉等の均熱炉5と、この均熱炉5の後段に設けられて、油、水、水溶性焼入れ媒体等を用いて金属線状体Kに焼入れを行う焼入れ装置3と、この焼入れ装置3の後段に設けられて高周波誘導加熱によって金属線状体Kに焼戻しを行う高周波誘導加熱装置6と、この高周波誘導加熱装置6の後段に設けられて、金属線状体Kを均熱するガス炉や電気炉等の均熱炉7とを備えている。
また、図9に示すように、図8に示す連続熱処理設備において、均熱炉5,7を省略することもある。
An example of a continuous heat treatment facility using the high frequency induction heating method will be described with reference to FIG. This continuous heat treatment equipment includes a high-frequency induction heating apparatus 1 that heats the metal linear body K to the austenitizing temperature, and a gas furnace that is provided at a subsequent stage of the high-frequency induction heating apparatus 1 to soak the metal linear body K. A soaking furnace 5 such as an electric furnace, a quenching apparatus 3 which is provided in a subsequent stage of the soaking furnace 5 and quenches the metal linear body K using oil, water, a water-soluble quenching medium, and the like, and this quenching A high-frequency induction heating device 6 provided at the subsequent stage of the apparatus 3 for tempering the metal linear body K by high-frequency induction heating, and provided at a subsequent stage of the high-frequency induction heating apparatus 6 to soak the metal linear body K. A soaking furnace 7 such as a gas furnace or an electric furnace is provided.
Moreover, as shown in FIG. 9, the soaking furnaces 5 and 7 may be omitted in the continuous heat treatment facility shown in FIG.

特開2004−76161号公報JP 2004-76161 A 特開2003−73737号公報JP 2003-73737 A

ところで、上述した2種類の連続熱処理設備では生産性に一長一短がある。
すなわちまず、輻射炉加熱方式による連続熱処理設備では、複数の金属線状体を同時に処理することができる。
しかし、輻射炉加熱方式では、その熱伝達特性からオーステナイト化温度への昇温速度が遅く、線速いわゆるライン速度を速くすることができない。
一方、高周波誘導加熱方式では、高周波誘導による急速加熱が可能であり、輻射炉加熱方式と比べると、線速いわゆるライン速度を速くすることができる。しかし、その加熱原理からキューリー点温度以上の加熱の効率が悪く、キューリー点温度からオーステナイト化温度までの加熱(昇温)に要する時間分だけ、ライン速度が遅くなる。
以上のように、従来では、輻射炉加熱方式または高周波誘導加熱方式のいずれか一方によって金属線状体をオーステナイト化温度まで加熱していたので、金属線状体の熱処理におけるライン速度を十分に速くするのが困難であった。
By the way, the above-described two types of continuous heat treatment facilities have advantages and disadvantages in productivity.
That is, first, in a continuous heat treatment facility using a radiant furnace heating method, a plurality of metal linear bodies can be processed simultaneously.
However, in the radiant furnace heating method, the rate of temperature increase to the austenitizing temperature is slow because of its heat transfer characteristics, and the so-called line speed cannot be increased.
On the other hand, in the high frequency induction heating method, rapid heating by high frequency induction is possible, and the linear speed, so-called line speed, can be increased as compared with the radiation furnace heating method. However, the efficiency of heating above the Curie point temperature is poor due to the heating principle, and the line speed is reduced by the time required for heating (temperature increase) from the Curie point temperature to the austenitizing temperature.
As described above, conventionally, the metal linear body is heated to the austenitizing temperature by either the radiant furnace heating method or the high-frequency induction heating method, so the line speed in the heat treatment of the metal linear body is sufficiently high. It was difficult to do.

本発明は前記事情に鑑みてなされたもので、金属線状体の熱処理におけるライン速度を十分に速くすることがきる金属線状体の連続熱処理設備および連続熱処理方法を提供することを目的とする。   The present invention has been made in view of the above circumstances, and an object thereof is to provide a continuous heat treatment facility and a continuous heat treatment method for a metal linear body capable of sufficiently increasing the line speed in the heat treatment of the metal linear body. .

前記目的を達成するために、本発明の金属線状体の連続熱処理設備は、金属線状体をキューリー点温度もしくはその近傍まで加熱する高周波誘導加熱装置と、
この高周波誘導加熱装置の後段に設けられ、当該高周波誘導加熱装置によって加熱された前記金属線状体をオーステナイト化温度まで加熱する輻射式加熱炉と、
この輻射式加熱炉の後段に設けられ、当該輻射式加熱炉によって加熱された前記金属線状体を焼入れする焼入れ装置と、
この焼入れ装置の後段に設けられ、当該焼入れ装置によって焼き入れられた前記金属線状体を焼き戻しする高周波誘導焼戻し装置とを含むことを特徴とする。
In order to achieve the above object, a continuous heat treatment facility for a metal linear body according to the present invention includes a high-frequency induction heating apparatus that heats the metal linear body to a Curie point temperature or the vicinity thereof,
A radiant heating furnace that is provided at a subsequent stage of the high-frequency induction heating device and heats the metal linear body heated by the high-frequency induction heating device to an austenitizing temperature;
A quenching device that is provided in a subsequent stage of the radiation heating furnace and quenches the metal linear body heated by the radiation heating furnace,
And a high-frequency induction tempering device provided at a subsequent stage of the quenching device and tempering the metal linear body quenched by the quenching device.

本発明においては、高周波誘導加熱装置によって金属線状体をキューリー点温度もしくはその近傍まで加熱するので、輻射炉加熱方式のみの場合に比して、当該温度まで金属線状体を加熱する加熱速度が速くなる。
そして、当該温度まで加熱された金属線状体を輻射式加熱炉によってオーステナイト化温度まで加熱するので、高周波誘導加熱方式のみの場合に比して、金属線状体を当該温度からオーステナイト化温度まで加熱する加熱速度が速くなる。
したがって、金属線状体の熱処理における線速いわゆるライン速度を速くすることができる。
また、焼入れ装置によって焼き入れられた金属線状体を高周波誘導焼戻し装置による高周波誘導加熱によって焼き戻すので、焼戻し温度を容易に制御できる。したがって、金属線状体を適切に熱処理できる。
In the present invention, the metal linear body is heated to the Curie point temperature or the vicinity thereof by the high-frequency induction heating device, so that the heating rate for heating the metal linear body to the temperature is higher than in the case of only the radiation furnace heating method. Will be faster.
And since the metal linear body heated to the said temperature is heated to the austenitizing temperature by a radiation-type heating furnace, compared with the case of only a high frequency induction heating system, a metal linear body is made from the said temperature to an austenitizing temperature. The heating rate for heating increases.
Therefore, the so-called line speed in the heat treatment of the metal linear body can be increased.
Moreover, since the metal linear body quenched by the quenching apparatus is tempered by high frequency induction heating by the high frequency induction tempering apparatus, the tempering temperature can be easily controlled. Therefore, the metal linear body can be appropriately heat-treated.

本発明の前記構成において、前記高周波誘導加熱装置は、並設された複数の高周波誘導加熱コイルを有し、これら高周波誘導加熱コイルは、それぞれ少なくとも1本の前記金属線状体を加熱するようにしてもよい。
このような構成によれば、複数の高周波誘導加熱コイルのそれぞれによって、金属線状体を異なる所望の温度まで加熱できる。
また、高周波誘導加熱コイルによって複数の金属線状体を加熱することによって、当該複数の金属線状体を同時に加熱できる。
In the configuration of the present invention, the high-frequency induction heating device includes a plurality of high-frequency induction heating coils arranged in parallel, and each of the high-frequency induction heating coils heats at least one of the metal linear bodies. May be.
According to such a configuration, the metal linear body can be heated to different desired temperatures by each of the plurality of high frequency induction heating coils.
Moreover, the said several metal linear body can be heated simultaneously by heating a several metal linear body with a high frequency induction heating coil.

また、本発明の前記構成において、前記高周波誘導加熱装置は、1つの高周波誘導加熱コイルを有し、
この高周波誘導加熱コイルは、複数の前記金属線状体を加熱するようにしてもよい。
このような構成によれば、1つの高周波誘導加熱コイルによって複数の金属線状体を同時に加熱できる。
In the configuration of the present invention, the high-frequency induction heating apparatus has one high-frequency induction heating coil,
The high frequency induction heating coil may heat a plurality of the metal linear bodies.
According to such a configuration, a plurality of metal linear bodies can be simultaneously heated by one high frequency induction heating coil.

また、本発明の前記構成において、前記高周波誘導焼戻し装置は、並設された複数の高周波誘導加熱コイルを有し、これら高周波誘導加熱コイルは、それぞれ少なくとも1本の前記金属線状体を加熱するようにしてもよい。
このような構成によれば、複数の高周波誘導加熱コイルのそれぞれによって、金属線状体を異なる所望の温度で焼き戻すことができる。
また、高周波誘導加熱コイルによって複数の金属線状体を加熱することによって、当該複数の金属線状体を同時に焼き戻すことができる。
In the configuration of the present invention, the high frequency induction tempering apparatus has a plurality of high frequency induction heating coils arranged in parallel, and each of the high frequency induction heating coils heats at least one of the metal linear bodies. You may do it.
According to such a configuration, the metal linear body can be tempered at different desired temperatures by each of the plurality of high frequency induction heating coils.
In addition, by heating a plurality of metal linear bodies with a high-frequency induction heating coil, the plurality of metal linear bodies can be tempered simultaneously.

また、本発明の前記構成において、前記高周波誘導焼戻し装置は、1つの高周波誘導加熱コイルを有し、
この高周波誘導加熱コイルは、複数の前記金属線状体を加熱するようにしてもよい。
このような構成によれば、1つの高周波誘導加熱コイルによって複数の金属線状体を同時に焼き戻すことができる。
Moreover, in the configuration of the present invention, the high-frequency induction tempering device has one high-frequency induction heating coil,
The high frequency induction heating coil may heat a plurality of the metal linear bodies.
According to such a configuration, a plurality of metal linear bodies can be tempered simultaneously by one high frequency induction heating coil.

また、本発明の金属線状体の連続熱処理方法は、金属線状体を高周波誘導加熱によってキューリー点温度もしくはその近傍まで加熱する高周波誘導加熱工程と、
前記高周波誘導加熱によって加熱された前記金属線状体を輻射式加熱によって、オーステナイト化温度まで加熱する輻射式加熱工程と、
前記輻射式加熱によって、オーステナイト化温度まで加熱された前記金属線状体を焼入れする焼入れ工程と、
焼き入れられた前記金属線状体を高周波誘導加熱によって焼き戻しする高周波誘導焼戻し工程とを含むことを特徴とする。
Moreover, the continuous heat treatment method of the metal linear body of the present invention includes a high frequency induction heating step of heating the metal linear body to a Curie point temperature or the vicinity thereof by high frequency induction heating,
A radiation heating step of heating the metal linear body heated by the high frequency induction heating to an austenitizing temperature by radiation heating;
A quenching step of quenching the metal linear body heated to the austenitizing temperature by the radiation heating;
A high-frequency induction tempering step of tempering the quenched metal linear body by high-frequency induction heating.

本発明においては、高周波誘導加熱工程によって金属線状体をキューリー点温度もしくはその近傍まで加熱するので、輻射炉加熱方式のみの場合に比して、当該温度まで金属線状体を加熱する加熱速度が速くなる。
そして、当該温度まで加熱された金属線状体を輻射式加熱工程によってオーステナイト化温度まで加熱するので、高周波誘導加熱方式のみの場合に比して、金属線状体を当該温度からオーステナイト化温度まで加熱する加熱速度が速くなる。
したがって、金属線状体の熱処理における線速いわゆるライン速度を速くすることができる。
また、焼入れ工程によって焼き入れられた金属線状体を高周波誘導焼戻し工程によって焼き戻すので、焼戻し温度を容易に制御できる。したがって、金属線状体を適切に熱処理できる。
In the present invention, the metal linear body is heated to the Curie point temperature or the vicinity thereof by the high frequency induction heating step, so that the heating rate for heating the metal linear body to the temperature as compared with the case of only the radiation furnace heating method. Will be faster.
And since the metal linear body heated to the said temperature is heated to the austenitizing temperature by a radiation-type heating process, compared with the case of only a high frequency induction heating system, a metal linear body is made from the said temperature to an austenitizing temperature. The heating rate for heating increases.
Therefore, the so-called line speed in the heat treatment of the metal linear body can be increased.
Moreover, since the metal linear body quenched by the quenching process is tempered by the high frequency induction tempering process, the tempering temperature can be easily controlled. Therefore, the metal linear body can be appropriately heat-treated.

本発明によれば、金属線状体の熱処理におけるライン速度を十分に速くすることがきる金属線状体の連続熱処理設備および連続熱処理方法を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the continuous heat processing equipment and continuous heat processing method of a metal linear body which can make the line speed in the heat processing of a metal linear body sufficiently high can be provided.

本発明の第1の実施の形態に係る連続熱処理設備の概略構成を示す図である。It is a figure which shows schematic structure of the continuous heat processing equipment which concerns on the 1st Embodiment of this invention. 本発明の第2の実施の形態に係る連続熱処理設備の概略構成を示す図である。It is a figure which shows schematic structure of the continuous heat processing equipment which concerns on the 2nd Embodiment of this invention. 本発明の第3の実施の形態に係る連続熱処理設備の概略構成を示す図である。It is a figure which shows schematic structure of the continuous heat processing equipment which concerns on the 3rd Embodiment of this invention. 本発明の第4の実施の形態に係る連続熱処理設備の概略構成を示す図である。It is a figure which shows schematic structure of the continuous heat processing equipment which concerns on the 4th Embodiment of this invention. 本発明の第5の実施の形態に係る連続熱処理設備の概略構成を示す図である。It is a figure which shows schematic structure of the continuous heat processing equipment which concerns on the 5th Embodiment of this invention. 本発明の第6の実施の形態に係る連続熱処理設備の概略構成を示す図である。It is a figure which shows schematic structure of the continuous heat processing equipment which concerns on the 6th Embodiment of this invention. 従来の輻射炉加熱方式による連続熱処理設備の概略構成を示す図である。It is a figure which shows schematic structure of the continuous heat processing equipment by the conventional radiation furnace heating system. 従来の高周波誘導加熱方式による連続熱処理設備の概略構成を示す図である。It is a figure which shows schematic structure of the continuous heat processing equipment by the conventional high frequency induction heating system. 従来の高周波誘導加熱方式による他の連続熱処理設備の概略構成を示す図である。It is a figure which shows schematic structure of the other continuous heat processing equipment by the conventional high frequency induction heating system.

以下、図面を参照して本発明に係る金属線状体の連続熱処理設備および連続熱処理方法について説明する。
(第1の実施の形態)
図1は第1の実施の形態に係る金属線状体の連続熱処理設備(以下、単に連続熱処理設備と称することもある。)の概略構成を示す。
図1に示すように、連続熱処理設備は、高周波誘導加熱装置1と、その後段に設けられた輻射式加熱炉2と、その後段に設けられた焼入れ装置3と、その後段に設けられた高周波誘導焼戻し装置4と、その後段に設けられた均熱炉5を備えている。
Hereinafter, a continuous heat treatment facility and a continuous heat treatment method for a metal linear body according to the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 shows a schematic configuration of a metal wire continuous heat treatment facility (hereinafter also referred to simply as a continuous heat treatment facility) according to the first embodiment.
As shown in FIG. 1, the continuous heat treatment equipment includes a high-frequency induction heating device 1, a radiant heating furnace 2 provided in the subsequent stage, a quenching device 3 provided in the subsequent stage, and a high-frequency provided in the subsequent stage. An induction tempering device 4 and a soaking furnace 5 provided in the subsequent stage are provided.

高周波誘導加熱装置1は1つの高周波誘導加熱コイル1aを有しており、この高周波誘導加熱コイル1aに、1本の冷間加工用の金属線状体Kが矢印で示す方向に連続的に挿通され、順次、輻射式加熱炉2、焼入れ装置3、高周波誘導焼戻し装置4、均熱炉5に挿通されるようになっている。
金属線状体Kは、高周波誘導加熱コイル1aによってキューリー点温度まで加熱されるが、これに限ることなく、キューリー点温度の近傍(例えば、キューリー点温度からプラスマイナス50℃)まで加熱されてもよい。
The high-frequency induction heating device 1 has one high-frequency induction heating coil 1a, and a single metal wire K for cold working is continuously inserted in the high-frequency induction heating coil 1a in the direction indicated by the arrow. Then, the radiation heating furnace 2, the quenching apparatus 3, the induction induction tempering apparatus 4, and the soaking furnace 5 are sequentially inserted.
The metal linear body K is heated to the Curie point temperature by the high frequency induction heating coil 1a. However, the metal linear body K is not limited to this, and may be heated to near the Curie point temperature (for example, from the Curie point temperature to plus or minus 50 ° C.). Good.

輻射式加熱炉2は、ガス加熱炉あるいは電気炉によって構成され、高周波誘導加熱コイル1aによってキューリー点温度まで加熱された金属線状体Kをオーステナイト化温度まで加熱するようになっている。
焼入れ装置3は、油、水、水溶性焼入れ媒体等を用いて焼入れを行う装置であり、輻射式加熱炉2によってオーステナイト化温度まで加熱された金属線状体Kに焼入れを行うようになっている。
The radiant heating furnace 2 is constituted by a gas heating furnace or an electric furnace, and heats the metal linear body K heated to the Curie point temperature by the high frequency induction heating coil 1a to the austenitizing temperature.
The quenching device 3 is a device that performs quenching using oil, water, a water-soluble quenching medium, and the like, and quenches the metal linear body K heated to the austenitizing temperature by the radiant heating furnace 2. Yes.

高周波誘導焼戻し装置4は1つの高周波誘導加熱コイル4aを有しており、この高周波誘導加熱コイル4aに、1本の冷間加工用の金属線状体Kが挿通されることで、当該金属線状体Kを高周波誘導加熱によって焼き戻すようになっている。
均熱炉5は、溶融金属、ガス炉あるいは電気炉や熱風炉、流動床などの加熱炉によって構成され、高周波誘導焼戻し装置4によって焼き戻された金属線状体Kを均熱するようになっている。
The high-frequency induction tempering device 4 has one high-frequency induction heating coil 4a, and a single metal wire K for cold working is inserted into the high-frequency induction heating coil 4a, so that the metal wire The shape K is tempered by high frequency induction heating.
The soaking furnace 5 is composed of a molten metal, a gas furnace or a heating furnace such as an electric furnace, a hot air furnace, or a fluidized bed, and soaks the metal linear body K tempered by the high-frequency induction tempering device 4. ing.

このような構成の金属線状体の連続熱処理設備によって、金属線状体Kに連続的に熱処理を施す場合、金属線状体Kを高周波誘導加熱装置1による高周波誘導加熱によってキューリー点温度まで加熱し(高周波誘導加熱工程)、次に、高周波誘導加熱によって加熱された金属線状体Kを輻射式加熱炉2による輻射式加熱によって、オーステナイト化温度まで加熱する(輻射式加熱工程)。   When the metal linear body K is continuously heat-treated by the metal linear body continuous heat treatment equipment having such a configuration, the metal linear body K is heated to the Curie point temperature by high-frequency induction heating by the high-frequency induction heating device 1. Next, the metal linear body K heated by the high frequency induction heating is heated to the austenitizing temperature by the radiant heating by the radiant heating furnace 2 (radiant heating process).

次に、輻射式加熱によって加熱された金属線状体Kを焼入れ装置3によって焼入れし(焼入れ工程)、次に、焼き入れられた金属線状体Kを高周波誘導焼戻し装置4によって焼き戻し(高周波誘導焼戻し工程)、最後に、焼き戻された金属線状体Kを均熱炉5によって均熱する(均熱工程)。
このような工程を経ることによって、金属線状体Kに連続的に熱処理を施すことができる。
Next, the metal linear body K heated by radiant heating is quenched by the quenching device 3 (quenching process), and then the quenched metal linear body K is tempered by the high frequency induction tempering device 4 (high frequency). (Induction tempering step) Finally, the tempered metal linear body K is soaked by the soaking furnace 5 (soaking step).
Through such a process, the metal linear body K can be continuously heat-treated.

以上のように本実施の形態によれば、高周波誘導加熱装置1によって金属線状体線Kをキューリー点温度まで加熱するので、輻射炉加熱方式のみの場合に比して、当該温度まで金属線状体Kを加熱する加熱速度が速くなる。
そして、当該温度(キューリー点温度)まで加熱された金属線状体Kを輻射式加熱炉2によってオーステナイト化温度まで加熱するので、高周波誘導加熱方式のみの場合に比して、金属線状体Kを当該温度(キューリー点温度)からオーステナイト化温度まで加熱する加熱速度が速くなる。
したがって、金属線状体Kの熱処理における線速いわゆるライン速度を速くすることができる。
また、焼入れ装置3によって焼き入れられた金属線状体Kを高周波誘導焼戻し装置4による高周波誘導加熱によって焼き戻すので、焼戻し温度を容易に制御できる。したがって、金属線状体Kを適切に熱処理できる。
As described above, according to the present embodiment, the metal linear body wire K is heated to the Curie point temperature by the high-frequency induction heating device 1, so that the metal wire is up to the temperature as compared with the case of only the radiation furnace heating method. The heating rate for heating the body K is increased.
And since the metal linear body K heated to the said temperature (Curie point temperature) is heated to the austenitizing temperature by the radiation heating furnace 2, compared with the case of only a high frequency induction heating system, the metal linear body K Is heated from the temperature (Curie point temperature) to the austenitizing temperature.
Therefore, the so-called line speed in the heat treatment of the metal linear body K can be increased.
Moreover, since the metal linear body K quenched by the quenching device 3 is tempered by high frequency induction heating by the high frequency induction tempering device 4, the tempering temperature can be easily controlled. Therefore, the metal linear body K can be appropriately heat-treated.

(第2の実施の形態)
図2は第2の実施の形態に係る金属線状体の連続熱処理設備の概略構成を示す。
図2に示す金属線状体の連続熱処理設備が、図1に示す連続熱処理設備と異なる点は、高周波誘導加熱装置1および高周波誘導焼戻し装置4の構成と熱処理する金属線状体Kの本数であるので、以下ではこの点について説明し、図1に示す連続熱処理設備と共通部分には同一符号を付してその説明を省略ないし簡略化する。
(Second Embodiment)
FIG. 2 shows a schematic configuration of a continuous heat treatment facility for a metal linear body according to the second embodiment.
2 differs from the continuous heat treatment facility shown in FIG. 1 in the configuration of the high frequency induction heating device 1 and the high frequency induction tempering device 4 and the number of the metal linear bodies K to be heat treated. Therefore, in the following, this point will be described, and the same parts as those in the continuous heat treatment facility shown in FIG.

図2に示すように、本実施の形態では、高周波誘導加熱装置1は、並設された複数(3つ)の高周波誘導加熱コイル1aを有している。なお、本実施の形態では、高周波誘導加熱コイル1aの並設数は3つであるが、2つでもよく、さらに4つ以上でもよい。
そして、各高周波誘導加熱コイル1aにそれぞれ1本ずつ金属線状体Kが挿通され、当該金属線状体Kがそれぞれの高周波誘導加熱コイル1aによって、キューリー点温度まで加熱されるようになっている。3つ高周波誘導加熱コイル1aは全て同じ温度制御をしてもよいし、異なる温度制御をしてもよい。
また、各高周波誘導加熱コイル1aに挿通される金属線状体の径は全て同じであってもよいし、異なっていてもよい。また、金属線状体の断面形状は、円形状であっても良いし、異形形状であってもよい。
As shown in FIG. 2, in this Embodiment, the high frequency induction heating apparatus 1 has the several (three) high frequency induction heating coil 1a provided in parallel. In the present embodiment, the number of the high-frequency induction heating coils 1a arranged in parallel is three, but may be two, or may be four or more.
Then, one metal linear body K is inserted into each high frequency induction heating coil 1a, and the metal linear body K is heated to the Curie point temperature by each high frequency induction heating coil 1a. . The three high-frequency induction heating coils 1a may all have the same temperature control or different temperature controls.
Moreover, all the diameters of the metal linear bodies inserted through the high-frequency induction heating coils 1a may be the same or different. In addition, the cross-sectional shape of the metal linear body may be a circular shape or an irregular shape.

また、高周波誘導焼戻し装置4は、高周波誘導加熱装置1と同様に、並設された複数(3つ)の高周波誘導加熱コイル4aを有している。なお、本実施の形態では、高周波誘導加熱コイル4aの並設数は3つであるが、2つでもよく、さらに4つ以上でもよい。
そして、各高周波誘導加熱コイル4aにそれぞれ1本ずつ金属線状体Kが挿通され、当該金属線状体Kがそれぞれの高周波誘導加熱コイル4aによる高周波誘導加熱によって焼き戻されるようになっている。3つ高周波誘導加熱コイル4aは全て同じ温度制御をしてもよいし、異なる温度制御をしてもよい。
また、各高周波誘導加熱コイル4aに挿通される金属線状体Kの径は全て同じであってもよいし、異なっていてもよい。また、金属線状体の断面形状は、円形状であっても良いし、異形形状であってもよい。
The high-frequency induction tempering device 4 has a plurality of (three) high-frequency induction heating coils 4 a arranged in parallel as in the high-frequency induction heating device 1. In the present embodiment, the number of the high-frequency induction heating coils 4a arranged in parallel is three, but may be two, or may be four or more.
Then, one metal linear body K is inserted through each high frequency induction heating coil 4a, and the metal linear body K is tempered by high frequency induction heating by each high frequency induction heating coil 4a. The three high-frequency induction heating coils 4a may all have the same temperature control or different temperature controls.
Further, the diameters of the metal linear bodies K inserted through the high-frequency induction heating coils 4a may all be the same or different. In addition, the cross-sectional shape of the metal linear body may be a circular shape or an irregular shape.

本実施の形態によれば、第1の実施の形態の連続熱処理設備と同様の効果を得ることができるのは勿論のこと、高周波誘導加熱装置1を構成する3つの高周波誘導加熱コイル1aのそれぞれによって、金属線状体Kを異なる所望の温度で加熱でき、適切に熱処理できる。
例えば、各金属線状体Kの化学成分が異なっている場合等に、それぞれに対応した温度に加熱でき、適切に熱処理できる。
また、各金属線状体Kの径が異なっている場合でも、各高周波誘導加熱コイル1aの出力を調整することによって、これら金属線状体Kを同時にキューリー点温度まで加熱できる。
According to the present embodiment, it is possible to obtain the same effect as the continuous heat treatment equipment of the first embodiment, as well as each of the three high-frequency induction heating coils 1a constituting the high-frequency induction heating device 1. Thus, the metal linear body K can be heated at different desired temperatures, and can be appropriately heat treated.
For example, when the chemical composition of each metal linear body K differs, it can heat to the temperature corresponding to each, and can heat-process appropriately.
Even when the diameters of the respective metal linear bodies K are different, the metal linear bodies K can be simultaneously heated to the Curie point temperature by adjusting the output of each high-frequency induction heating coil 1a.

また、高周波誘導焼戻し装置4を構成する3つの高周波誘導加熱コイル4aのそれぞれによって、金属線状体Kを異なる所望の温度で焼き戻すことができ、適切に熱処できる。
例えば、各金属線状体Kの化学成分が異なっている場合等に、それぞれに対応した温度で焼き戻すことができ、適切に熱処理できる。
また、各金属線状体Kの径が異なっている場合でも、各高周波誘導加熱コイル4aの出力を調整することによって、これら金属線状体Kを同時に焼き戻すことができる。
Moreover, the metal high frequency induction heating coil 4a which comprises the high frequency induction tempering apparatus 4 can each temper the metal linear body K at different desired temperature, and can heat-process appropriately.
For example, when the chemical composition of each metal linear body K is different, it can be tempered at the temperature corresponding to each, and it can heat-process appropriately.
Even when the diameters of the respective metal linear bodies K are different, the metal linear bodies K can be tempered simultaneously by adjusting the output of each high-frequency induction heating coil 4a.

(第3の実施の形態)
図3は第3の実施の形態に係る金属線状体の連続熱処理設備の概略構成を示す。
図3に示す金属線状体の連続熱処理設備が、図1に示す連続熱処理設備と異なる点は、熱処理する金属線状体Kの本数であるので、以下ではこの点について説明し、図1に示す連続熱処理設備と共通部分には同一符号を付してその説明を省略ないし簡略化する。
(Third embodiment)
FIG. 3 shows a schematic configuration of a continuous heat treatment facility for metal linear bodies according to the third embodiment.
3 is different from the continuous heat treatment facility shown in FIG. 1 in the number of metal linear bodies K to be heat treated. This will be described below, and FIG. Portions common to the continuous heat treatment equipment shown are denoted by the same reference numerals, and description thereof is omitted or simplified.

図3に示すように、本実施の形態では、高周波誘導加熱装置1は、1つの高周波誘導加熱コイル1aを有し、この高周波誘導加熱コイル1aには、複数本(3本)の金属線状体Kが挿通されて、当該高周波誘導加熱コイル1aによって、キューリー点温度まで加熱されるようになっている。
また、高周波誘導焼戻し装置4は、1つの高周波誘導加熱コイル4aを有し、この高周波誘導加熱コイル4aには、複数本(3本)の金属線状体Kが挿通されて、当該高周波誘導加熱コイル4aによって、焼き戻されるようになっている。
As shown in FIG. 3, in the present embodiment, the high-frequency induction heating device 1 has one high-frequency induction heating coil 1a, and the high-frequency induction heating coil 1a includes a plurality of (three) metal wire shapes. The body K is inserted and heated to the Curie point temperature by the high frequency induction heating coil 1a.
The high-frequency induction tempering device 4 has one high-frequency induction heating coil 4a, and a plurality of (three) metal linear bodies K are inserted into the high-frequency induction heating coil 4a, and the high-frequency induction heating coil 4a is inserted. It is tempered by the coil 4a.

本実施の形態によれば、第1の実施の形態の連続熱処理設備と同様の効果を得ることができるのは勿論のこと、高周波誘導加熱装置1の1つの高周波誘導加熱コイル1aによって複数本(3本)の金属線状体Kを同時に加熱できるとともに、高周波誘導焼戻し装置4の1つの高周波誘導加熱コイル4aによって複数本(3本)の金属線状体Kを同時に焼き戻すことができるという利点がある。   According to the present embodiment, it is possible to obtain the same effect as that of the continuous heat treatment facility of the first embodiment, and a plurality of (by a high frequency induction heating coil 1a of the high frequency induction heating apparatus 1 ( (Three) metal linear bodies K can be simultaneously heated, and a plurality of (three) metal linear bodies K can be simultaneously tempered by one high frequency induction heating coil 4a of the high frequency induction tempering apparatus 4. There is.

(第4の実施の形態)
図4は第4の実施の形態に係る金属線状体の連続熱処理設備の概略構成を示す。
図4に示す金属線状体の連続熱処理設備が、図2に示す連続熱処理設備と異なる点は、高周波誘導加熱装置1の高周波誘導加熱コイル1aによって熱処理する金属線状体Kの本数および高周波誘導焼戻し装置4の高周波誘導加熱コイル4aによって熱処理する金属線状体Kの本数であるので、以下ではこの点について説明し、図2に示す連続熱処理設備と共通部分には同一符号を付してその説明を省略ないし簡略化する。
(Fourth embodiment)
FIG. 4 shows a schematic configuration of the continuous heat treatment facility for metal linear bodies according to the fourth embodiment.
4 is different from the continuous heat treatment equipment shown in FIG. 2 in that the number of metal linear bodies K to be heat treated by the high frequency induction heating coil 1a of the high frequency induction heating apparatus 1 and high frequency induction. Since this is the number of the metal linear bodies K to be heat-treated by the high-frequency induction heating coil 4a of the tempering device 4, this point will be described below, and the same reference numerals are given to the parts common to the continuous heat treatment equipment shown in FIG. The description is omitted or simplified.

図4に示すように、本実施の形態では、高周波誘導加熱装置1の各高周波誘導加熱コイル1aには、複数本(3本)の金属線状体Kが挿通されて、当該各高周波誘導加熱コイル1aによって、キューリー点温度まで加熱されるようになっている。
また、高周波誘導焼戻し装置4の各高周波誘導加熱コイル4aには、複数本(3本)の金属線状体Kが挿通されて、当該各高周波誘導加熱コイル4aによって、焼き戻されるようになっている。
なお、各高周波誘導加熱コイル1a,4aに挿通される金属線状体Kは、複数本であれば、3本に限ることはない。
As shown in FIG. 4, in the present embodiment, a plurality (three) of metal linear bodies K are inserted into each high-frequency induction heating coil 1 a of the high-frequency induction heating device 1, and each high-frequency induction heating is performed. The coil 1a heats up to the Curie point temperature.
In addition, a plurality (three) of the metal wire K is inserted into each high frequency induction heating coil 4a of the high frequency induction tempering device 4, and is tempered by each high frequency induction heating coil 4a. Yes.
In addition, if the metal linear body K penetrated by each high frequency induction heating coil 1a, 4a is plural, it will not be restricted to three.

本実施の形態によれば、第2の実施の形態の連続熱処理設備と同様の効果を得ることができるのは勿論のこと、1つの高周波誘導加熱コイル1aによって複数本(3本)の金属線状体Kを同時に加熱できるとともに、1つの高周波誘導加熱コイル4aによって複数本(3本)の金属線状体Kを同時に焼き戻すことができる。
また、3つの高周波誘導加熱コイル1aのそれぞれによって、複数の金属線状体Kを異なる所望の温度で加熱できるとともに、3つの高周波誘導加熱コイル4aのそれぞれによって、複数の金属線状体Kを異なる所望の温度で焼き戻すことができるので、適切に熱処理できる。
また、各高周波誘導加熱コイル1a,4aに挿通される複数の金属線状体Kの径が高周波誘導加熱コイル1a,4aごとに異なっている場合でも、各高周波誘導加熱コイル1a,4aの出力を調整することによって、各高周波誘導加熱コイル1a,4aに挿通される複数の金属線状体Kを同時にキューリー点温度まで加熱できるとともに、焼き戻すことができる。
According to the present embodiment, the same effect as that of the continuous heat treatment equipment of the second embodiment can be obtained, and a plurality of (three) metal wires are formed by one high frequency induction heating coil 1a. The shape K can be heated at the same time, and a plurality of (three) metal wires K can be simultaneously tempered by one high-frequency induction heating coil 4a.
Further, each of the three high frequency induction heating coils 1a can heat the plurality of metal linear bodies K at different desired temperatures, and each of the three high frequency induction heating coils 4a can have a plurality of different metal linear bodies K. Since it can be tempered at a desired temperature, it can be appropriately heat-treated.
Further, even when the diameters of the plurality of metal linear bodies K inserted through the high frequency induction heating coils 1a and 4a are different for the high frequency induction heating coils 1a and 4a, the outputs of the high frequency induction heating coils 1a and 4a are output. By adjusting, the plurality of metal linear bodies K inserted through the high-frequency induction heating coils 1a and 4a can be simultaneously heated to the Curie point temperature and tempered.

(第5の実施の形態)
図5は第5の実施の形態に係る金属線状体の連続熱処理設備の概略構成を示す。
図5に示す金属線状体の連続熱処理設備が、図3に示す連続熱処理設備と異なる点は、高周波誘導焼戻し装置4の構成であるので、以下ではこの点について説明し、図3に示す連続熱処理設備と共通部分には同一符号を付してその説明を省略ないし簡略化する。
(Fifth embodiment)
FIG. 5 shows a schematic configuration of a continuous heat treatment facility for a metal linear body according to a fifth embodiment.
5 is different from the continuous heat treatment equipment shown in FIG. 3 in the configuration of the high-frequency induction tempering apparatus 4, this point will be described below and the continuous heat treatment equipment shown in FIG. The same parts as those in the heat treatment facility are denoted by the same reference numerals, and the description thereof is omitted or simplified.

図5に示すように、本実施の形態では、高周波誘導焼戻し装置4は、並設された複数(3つ)の高周波誘導加熱コイル4aを備えている。そして、高周波誘導加熱装置1の高周波誘導加熱コイル1aに挿通された3本の金属線状体Kは、高周波誘導焼戻し装置4においては、それぞれ別々の高周波誘導加熱コイル4aにそれぞれ挿通されて、焼き戻されるようになっている。
なお、本実施の形態の場合、高周波誘導加熱装置1の高周波誘導加熱コイル1aに3本の金属線状体Kを挿通するようにしたが、挿通する金属線状体Kの本数が増減する場合、それに合わせて高周波誘導焼戻し装置4の高周波誘導加熱コイル4aの個数を設定し、当該高周波誘導加熱コイル4aにそれぞれ金属線状体Kを挿通すればよい。
As shown in FIG. 5, in the present embodiment, the high frequency induction tempering apparatus 4 includes a plurality (three) of high frequency induction heating coils 4a arranged side by side. And in the high frequency induction tempering apparatus 4, the three metal linear bodies K inserted through the high frequency induction heating coil 1a of the high frequency induction heating apparatus 1 are respectively inserted into separate high frequency induction heating coils 4a and baked. It is supposed to be returned.
In the case of the present embodiment, three metal linear bodies K are inserted into the high-frequency induction heating coil 1a of the high-frequency induction heating apparatus 1, but the number of inserted metal linear bodies K increases or decreases. Accordingly, the number of the high-frequency induction heating coils 4a of the high-frequency induction tempering apparatus 4 is set in accordance with this, and the metal linear body K is inserted into each of the high-frequency induction heating coils 4a.

本実施の形態によれば、第3の実施の形態の連続熱処理設備と同様の効果を得ることができるのは勿論のこと、高周波誘導焼戻し装置4の高周波誘導加熱コイル4aによって、複数本(3本)の金属線状体Kをそれぞれを異なる所望の温度で焼き戻すことができ、適切な熱処理を行えるという利点がある。   According to the present embodiment, the same effect as that of the continuous heat treatment equipment of the third embodiment can be obtained, and a plurality of (3) are provided by the high frequency induction heating coil 4a of the high frequency induction tempering device 4. The present invention has an advantage that each of the metal linear bodies K can be tempered at different desired temperatures, and an appropriate heat treatment can be performed.

(第6の実施の形態)
図6は第6の実施の形態に係る金属線状体の連続熱処理設備の概略構成を示す。
図6に示す金属線状体の連続熱処理設備が、図4に示す連続熱処理設備と異なる点は、高周波誘導焼戻し装置4の構成であるので、以下ではこの点について説明し、図4に示す連続熱処理設備と共通部分には同一符号を付してその説明を省略ないし簡略化する。
(Sixth embodiment)
FIG. 6 shows a schematic configuration of a continuous heat treatment facility for a metal linear body according to a sixth embodiment.
6 is different from the continuous heat treatment equipment shown in FIG. 4 in the configuration of the high-frequency induction tempering apparatus 4, this point will be described below, and the continuous heat treatment equipment shown in FIG. The same parts as those in the heat treatment facility are denoted by the same reference numerals, and the description thereof is omitted or simplified.

図6に示すように、本実施の形態では、高周波誘導焼戻し装置4は、並設された複数(9つ)の高周波誘導加熱コイル4aを備えている。そして、高周波誘導加熱装置1の各高周波誘導加熱コイル1aに挿通された3本の金属線状体Kは、高周波誘導焼戻し装置4においては、それぞれ別々の高周波誘導加熱コイル4aにそれぞれ3本ずつ挿通されて、焼き戻されるようになっている。
なお、本実施の形態の場合、高周波誘導加熱装置1の高周波誘導加熱コイル1aに3本の金属線状体Kを挿通するようにしたが、挿通する金属線状体Kの本数が増減する場合、それに合わせて高周波誘導焼戻し装置4の高周波誘導加熱コイル4aの個数を設定し、当該高周波誘導加熱コイル4aにそれぞれ金属線状体Kを挿通すればよい。
As shown in FIG. 6, in the present embodiment, the high-frequency induction tempering device 4 includes a plurality (9) of high-frequency induction heating coils 4 a arranged side by side. The three metal linear bodies K inserted into the high frequency induction heating coils 1a of the high frequency induction heating device 1 are inserted into the separate high frequency induction heating coils 4a in the high frequency induction tempering device 4, respectively. Has been tempered.
In the case of the present embodiment, three metal linear bodies K are inserted into the high-frequency induction heating coil 1a of the high-frequency induction heating apparatus 1, but the number of inserted metal linear bodies K increases or decreases. Accordingly, the number of the high-frequency induction heating coils 4a of the high-frequency induction tempering apparatus 4 is set in accordance with this, and the metal linear body K is inserted into each of the high-frequency induction heating coils 4a.

本実施の形態によれば、第4の実施の形態の連続熱処理設備と同様の効果を得ることができるのは勿論のこと、高周波誘導焼戻し装置4の高周波誘導加熱コイル4aによって、複数本(9本)の金属線状体Kをそれぞれを異なる所望の温度で焼き戻すことができ、適切な熱処理を行えるという利点がある。   According to the present embodiment, the same effect as that of the continuous heat treatment equipment of the fourth embodiment can be obtained, and a plurality (9) of high frequency induction heating coils 4a of the high frequency induction tempering device 4 can be obtained. The present invention has an advantage that each of the metal linear bodies K can be tempered at different desired temperatures, and an appropriate heat treatment can be performed.

JIS G 3565により規格化されている化学成分の金属線状体を、本発明の第1の実施の形態に係る連続熱処理設備により加熱、焼入れおよび焼戻し処理を行ったところ、従来の輻射炉加熱方式に比べて加熱時間が約30%短縮できた。
また、JIS G 3565により規格化されている化学成分の金属線状体を、本発明の第2の実施の形態に係る連続熱処理設備により加熱、焼入れおよび焼戻し処理を行ったところ、各高周波誘導加熱コイルの出力を調整することによって、金属線状体を異なる仕様で加熱でき、適切に熱処理できたオイルテンパー線を得ることが確認できた。
When a metal linear body having a chemical component standardized by JIS G 3565 is heated, quenched, and tempered by the continuous heat treatment facility according to the first embodiment of the present invention, a conventional radiation furnace heating method is used. The heating time could be reduced by about 30% compared to.
Moreover, when the metal linear body of the chemical component standardized by JIS G 3565 was heated, quenched and tempered by the continuous heat treatment equipment according to the second embodiment of the present invention, each high frequency induction heating was performed. It was confirmed that by adjusting the output of the coil, the metal linear body could be heated with different specifications, and an oil tempered wire that was appropriately heat-treated was obtained.

K 金属線状体
1 高周波誘導加熱装置
1a 高周波誘導加熱コイル
2 輻射式加熱炉
3 焼入れ装置
4 高周波誘導焼戻し装置
4a 高周波誘導加熱コイル
K metal linear body 1 high frequency induction heating device 1a high frequency induction heating coil 2 radiation type heating furnace 3 quenching device 4 high frequency induction tempering device 4a high frequency induction heating coil

Claims (6)

金属線状体をキューリー点温度もしくはその近傍まで加熱する高周波誘導加熱装置と、
この高周波誘導加熱装置の後段に設けられ、当該高周波誘導加熱装置によって加熱された前記金属線状体をオーステナイト化温度まで加熱する輻射式加熱炉と、
この輻射式加熱炉の後段に設けられ、当該輻射式加熱炉によって加熱された前記金属線状体を焼入れする焼入れ装置と、
この焼入れ装置の後段に設けられ、当該焼入れ装置によって焼き入れられた前記金属線状体を焼き戻しする高周波誘導焼戻し装置とを含むことを特徴とする金属線状体の連続熱処理設備。
A high-frequency induction heating device that heats the metal wire to the Curie point temperature or the vicinity thereof;
A radiant heating furnace that is provided at a subsequent stage of the high-frequency induction heating device and heats the metal linear body heated by the high-frequency induction heating device to an austenitizing temperature;
A quenching device that is provided in a subsequent stage of the radiation heating furnace and quenches the metal linear body heated by the radiation heating furnace,
A continuous heat treatment facility for a metal linear body, comprising: a high-frequency induction tempering apparatus provided at a subsequent stage of the quenching apparatus and tempering the metal linear body quenched by the quenching apparatus.
前記高周波誘導加熱装置は、並設された複数の高周波誘導加熱コイルを有し、これら高周波誘導加熱コイルは、それぞれ少なくとも1本の前記金属線状体を加熱することを特徴とする請求項1に記載の金属線状体の連続熱処理設備。   The high-frequency induction heating apparatus includes a plurality of high-frequency induction heating coils arranged in parallel, and each of the high-frequency induction heating coils heats at least one of the metal linear bodies. A continuous heat treatment facility for the metal linear body described. 前記高周波誘導加熱装置は、1つの高周波誘導加熱コイルを有し、
この高周波誘導加熱コイルは、複数の前記金属線状体を加熱することを特徴とする請求項1に記載の金属線状体の連続熱処理設備。
The high frequency induction heating device has one high frequency induction heating coil,
The continuous heat treatment facility for metal linear bodies according to claim 1, wherein the high-frequency induction heating coil heats the plurality of metal linear bodies.
前記高周波誘導焼戻し装置は、並設された複数の高周波誘導加熱コイルを有し、これら高周波誘導加熱コイルは、それぞれ少なくとも1本の前記金属線状体を加熱することを特徴とする請求項1〜3のいずれか1項に記載の金属線状体の連続熱処理設備。   The high-frequency induction tempering apparatus includes a plurality of high-frequency induction heating coils arranged in parallel, and each of the high-frequency induction heating coils heats at least one of the metal linear bodies. 4. The continuous heat treatment facility for a metal linear body according to any one of 3 above. 前記高周波誘導焼戻し装置は、1つの高周波誘導加熱コイルを有し、
この高周波誘導加熱コイルは、複数の前記金属線状体を加熱することを特徴とする請求項1〜3のいずれか1項に記載の金属線状体の連続熱処理設備。
The high frequency induction tempering device has one high frequency induction heating coil,
The high-frequency induction heating coil heats the plurality of metal linear bodies, and the continuous heat treatment facility for metal linear bodies according to any one of claims 1 to 3.
金属線状体を高周波誘導加熱によってキューリー点温度もしくはその近傍まで加熱する高周波誘導加熱工程と、
前記高周波誘導加熱によって加熱された前記金属線状体を輻射式加熱によって、オーステナイト化温度まで加熱する輻射式加熱工程と、
前記輻射式加熱によって、オーステナイト化温度まで加熱された前記金属線状体を焼入れする焼入れ工程と、
焼き入れられた前記金属線状体を高周波誘導加熱によって焼き戻しする高周波誘導焼戻し工程とを含むことを特徴とする金属線状体の連続熱処理方法。
A high frequency induction heating step of heating the metal linear body to the Curie point temperature or the vicinity thereof by high frequency induction heating;
A radiation heating step of heating the metal linear body heated by the high frequency induction heating to an austenitizing temperature by radiation heating;
A quenching step of quenching the metal linear body heated to the austenitizing temperature by the radiation heating;
And a high-frequency induction tempering step of tempering the quenched metal linear body by high-frequency induction heating.
JP2015192569A 2015-09-30 2015-09-30 Continuous heat treatment facility of metal wire body and continuous heat treatment method Pending JP2017066473A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1980875A (en) * 1930-01-01 1934-11-13 Ajax Electrothermic Corp Electric induction furnace
US2385031A (en) * 1943-04-27 1945-09-18 Westinghouse Electric Corp Multiple-channel inductive heating apparatus
US2675461A (en) * 1949-07-29 1954-04-13 Samuel E Leonard Method and apparatus for heating metallic wire, bars, and strips
JPS61276940A (en) * 1985-03-06 1986-12-06 エヌ・ヴイ・ベカルト・エス・エイ Method and apparatus for induction heating of wire
JPH04183822A (en) * 1990-11-16 1992-06-30 Daido Steel Co Ltd Method for heating metal wire
JPH0527479Y2 (en) * 1990-12-19 1993-07-13
US6198083B1 (en) * 2000-04-12 2001-03-06 American Spring Wire Corp. Method and apparatus for heat treating wires

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1980875A (en) * 1930-01-01 1934-11-13 Ajax Electrothermic Corp Electric induction furnace
US2385031A (en) * 1943-04-27 1945-09-18 Westinghouse Electric Corp Multiple-channel inductive heating apparatus
US2675461A (en) * 1949-07-29 1954-04-13 Samuel E Leonard Method and apparatus for heating metallic wire, bars, and strips
JPS61276940A (en) * 1985-03-06 1986-12-06 エヌ・ヴイ・ベカルト・エス・エイ Method and apparatus for induction heating of wire
JPH04183822A (en) * 1990-11-16 1992-06-30 Daido Steel Co Ltd Method for heating metal wire
JPH0527479Y2 (en) * 1990-12-19 1993-07-13
US6198083B1 (en) * 2000-04-12 2001-03-06 American Spring Wire Corp. Method and apparatus for heat treating wires

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