JP4891275B2 - Heat quenching method for thin sheet steel plate using induction heating and halogen lamp - Google Patents

Heat quenching method for thin sheet steel plate using induction heating and halogen lamp Download PDF

Info

Publication number
JP4891275B2
JP4891275B2 JP2008033037A JP2008033037A JP4891275B2 JP 4891275 B2 JP4891275 B2 JP 4891275B2 JP 2008033037 A JP2008033037 A JP 2008033037A JP 2008033037 A JP2008033037 A JP 2008033037A JP 4891275 B2 JP4891275 B2 JP 4891275B2
Authority
JP
Japan
Prior art keywords
heating
induction heating
halogen lamp
quenching
steel plate
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 - Fee Related
Application number
JP2008033037A
Other languages
Japanese (ja)
Other versions
JP2008121124A (en
Inventor
八尾祐吾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Neturen Co Ltd
Original Assignee
Neturen Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Neturen Co Ltd filed Critical Neturen Co Ltd
Priority to JP2008033037A priority Critical patent/JP4891275B2/en
Publication of JP2008121124A publication Critical patent/JP2008121124A/en
Application granted granted Critical
Publication of JP4891275B2 publication Critical patent/JP4891275B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatment Of Articles (AREA)

Description

本発明は、誘導加熱のみでは均一加熱が困難な複雑な形状の部材の加熱や、箔や薄板の異形切板の焼入れの加熱などの加熱処理方法に関するものである。   The present invention relates to a heat treatment method such as heating of a member having a complicated shape, which is difficult to be uniformly heated only by induction heating, and heating by quenching a deformed cut plate of a foil or a thin plate.

誘導加熱は急速短時間の加熱と連続熱処理が可能なために、部材の加熱処理として望ましい。しかし、例えば図１に示すような異形の薄板の切板などを誘導加熱すると断面の小さいくびれ部分５ａが過熱されて全体が均一温度に加熱できない。また、孔を有する板材などの加熱の場合も同様に孔周辺が過熱されて温度が不均一になるという問題点がある。このために、従来はこれらの部材は電気炉など炉加熱により加熱処理された（特許文献１）。
特開平０８−１８０９６６号公報 明細書段落０００２ Induction heating is desirable as a heat treatment for members because it can be rapidly heated and continuously heat-treated. However, for example, when an irregularly shaped thin plate as shown in FIG. 1 is induction-heated, the constricted portion 5a having a small cross section is overheated and the whole cannot be heated to a uniform temperature. Also, in the case of heating a plate material having holes, there is a problem that the temperature is uneven due to overheating of the periphery of the holes. For this reason, conventionally, these members have been heat-treated by furnace heating such as an electric furnace (Patent Document 1).
JP-A-08-180966 Specification Paragraph 0002

しかしながら、上記の電気炉などの炉加熱には大きな炉設備が必要になるという間題点があった。一方、短時間で加熱したり部分的な加熱処理の方法としては高周波誘導加熱によることが簡便であが、薄板材の部材の加熱面などの場合は高周波誘導加熱では均一に加熱することが困難であるという問題がある。   However, there is a problem that a large furnace facility is required for heating the furnace such as the electric furnace. On the other hand, high-frequency induction heating is convenient as a method of heating in a short time or partial heat treatment, but it is difficult to heat uniformly by high-frequency induction heating in the case of a heating surface of a thin plate member. There is a problem that.

そこで本発明は、ハロゲンランプと高周波誘導加熱とを併用して加熱することにより、上記問題点を解決して部材を加熱処理する方法と装置を提供することを目的とする。   SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a method and an apparatus for heat-treating a member by solving the above problems by heating in combination with a halogen lamp and high-frequency induction heating.

上記目的を達成するために、本発明の鋼部材の加熱焼入方法は、幅に変動がある薄板異形鋼板からなる部材を誘導加熱により６００℃〜７５０℃まで加熱した後、ハロゲンランプにより焼入温度まで加熱して冷却焼入れする誘導加熱とハロゲンランプによる加熱とを併用したことを特徴とするものである。
これにより誘導加熱では均一加熱が困難な薄板異形鋼板の均一加熱が可能になり、このような鋼部材の焼入れが簡易にできる。特に厚さ２．０ｍｍ以下の薄い異形切板又は箔の焼入れに適する。 In order to achieve the above object, the method of heating and quenching a steel member according to the present invention comprises heating a member made of a thin deformed steel plate having a variation in width to 600 ° C. to 750 ° C. by induction heating and then quenching with a halogen lamp. It is characterized in that induction heating for heating to a temperature and cooling quenching and heating by a halogen lamp are used in combination.
This makes it possible to uniformly heat a thin plate-shaped steel plate that is difficult to heat uniformly by induction heating, and can easily quench such a steel member. In particular, it is suitable for quenching a thin irregularly cut plate or foil having a thickness of 2.0 mm or less.

すなわち、薄板を焼入れする場合、誘導加熱では７５０℃以下の加熱は容易であるが、それ以上の焼入温度までの均一加熱が困難である。そこで、７５０℃以上の温度範囲をハロゲンランプにより加熱することにより焼入温度まで容易に急速加熱することができ、このような部材の連続焼入れが簡易にできる。   That is, when quenching a thin plate, induction heating is easy at 750 ° C. or lower, but uniform heating up to a higher quenching temperature is difficult. Thus, by heating the temperature range of 750 ° C. or higher with a halogen lamp, it can be rapidly heated rapidly up to the quenching temperature, and continuous quenching of such members can be simplified.

本発明の加熱処理方法と装置によれば、炉加熱のような大型の設備を要せず、部分的な焼入れなどの熱処理ができ、また高周波誘導加熱では均一加熱が困難な複雑な部材の均一温度の加熱ができるので、原価低減が可能になる。   According to the heat treatment method and apparatus of the present invention, it is possible to perform heat treatment such as partial quenching without requiring large facilities such as furnace heating, and to uniform the complicated members that are difficult to heat uniformly by high frequency induction heating. Since the temperature can be heated, the cost can be reduced.

次に本発明を図示の実施形態について具体的に説明する。本発明の実施形態は、薄板の異形ばね鋼片を焼入れするものである。図１は本発明のハロゲンランプによる加熱熱処理を示す図、図２（ａ）は従来のロンギテユーデナル(Longitudina1) 誘導加熱の図、図２（ｂ）はトランスバースフラックスヒーテイング(Transverse Flux Heating) の誘導加熱の図である。 Next, the present invention will be specifically described with reference to the illustrated embodiment. The embodiment of the present invention quenches thin plate-shaped spring steel pieces. FIG. 1 is a diagram showing the heat treatment by the halogen lamp of the present invention, FIG. 2 (a) is a diagram of conventional Longitudina 1 induction heating, and FIG . 2 (b) is a transverse flux heating (Transverse Flux Heating). It is a figure of induction heating.

図において、ワーク（ばね部材）５は板厚０．６〜２．０ｍｍのばね鋼板からなり、長さ方向の両側にくびれ部５ａを有する鼓形をなしている。このようなワ一ク５を、図２（ａ）のコイル６を用いてロンギテユーデナル(Longitudina1)誘導加熱を行うと、板厚が薄いために変態点以下の７５０℃以下までは温度が上がるが、それ以上には温度が上がらないために焼入温度に加熱することができない。一方、図２（ｂ）のコイル７を用いてトランスバースフラックスヒーティング(Transverse Flux Heating) の誘導加熱を行うと、図の５ａ，５ｂの部分が過熱されて高温になり全体を均一な温度に加熱できないという間題点がある。 In the figure, a work (spring member) 5 is made of a spring steel plate having a thickness of 0.6 to 2.0 mm, and has a drum shape having constricted portions 5a on both sides in the length direction. When such work 5 is subjected to Longitudina 1 induction heating using the coil 6 in FIG. 2 (a), the temperature rises to 750 ° C. below the transformation point due to the thin plate thickness. However, since the temperature does not rise beyond that, it cannot be heated to the quenching temperature. On the other hand, when induction heating of transverse flux heating (Transverse Flux Heating) is performed using the coil 7 of FIG. 2 (b), the portions 5a and 5b in the figure are heated to a high temperature, and the entire temperature is made uniform. There is a problem that cannot be heated.

そこで本発明は、ワーク５を図２のコイル６またはコイル７を用いてロンギテユーデナル(Longitudina1)またはトランスバースフラックスヒーティング(Transverse Flux Heating) の誘導加熱を行って６００℃〜７５０℃まで加熱した後、図１に示すようにワーク５の両側面に設けたハロゲンランプ８によりワーク５を焼入温度まで加熱するものである。本発明の方法により均一に焼入温度に加熱でき、図示しない冷却手段により急冷することにより均一な焼入れ硬さを得ることができた。 Therefore, in the present invention, the workpiece 5 is heated to 600 ° C. to 750 ° C. by induction heating of Longitudina 1 or Transverse Flux Heating using the coil 6 or the coil 7 of FIG. After that, the workpiece 5 is heated to the quenching temperature by the halogen lamps 8 provided on both sides of the workpiece 5 as shown in FIG. A uniform quenching hardness could be obtained by heating to a quenching temperature uniformly by the method of the present invention and by quenching by a cooling means (not shown).

図１及び図２により、焼入れ動作を説明する。まず、ワーク５を図２（ａ）に示すようなロンギテユーデナル（Longitudinal）誘導加熱により変態点下の６００℃〜７５０℃まで加熱する。そこで、加熱コイル６に置き換えて、図１のハロゲンランプ８を置き、６００℃〜７５０℃から焼入温度までをハロゲンランプにより加熱して冷却する。これにより、効率的に均一な焼入れ処理ができる。 The quenching operation will be described with reference to FIGS. First, the workpiece 5 is heated to 600 ° C. to 750 ° C. below the transformation point by Longitudinal induction heating as shown in FIG. Therefore, the halogen lamp 8 in FIG. 1 is placed in place of the heating coil 6 , and the temperature from 600 ° C. to 750 ° C. to the quenching temperature is heated by the halogen lamp and cooled . Thereby, a uniform quenching process can be performed efficiently.

もとより上記本発明の方法は、異形材でない薄板帯鋼などの連続焼入れにも応用できる。   Of course, the method of the present invention can also be applied to continuous quenching of non-deformed thin strip steel.

以上述べたように本発明の熱処理方法は、誘導加熱とハロゲンランプを併用して、誘導加熱では均一に加熱することが困難な凹凸の激しい面の加熱や、複雑な形状の薄板の加熱などが可能になる。   As described above, the heat treatment method of the present invention uses induction heating and a halogen lamp in combination to heat an uneven surface that is difficult to be uniformly heated by induction heating or to heat a thin plate having a complicated shape. It becomes possible.

このハロゲンランプによる加熱と誘導加熱とを併用して加熱することにより効率的に加熱処理が可能になる。   Heating can be efficiently performed by using both the heating by the halogen lamp and induction heating in combination.

薄板部材の熱処理が、大型の設備を要しないで、急速、かっ均一に熱処理できる。   The thin plate member can be heat-treated quickly and uniformly without the need for large equipment.

本発明実施形態のハロゲンランプによる薄板異形鋼板の加熱方法を示す図である。It is a figure which shows the heating method of the thin plate irregular shaped steel plate by the halogen lamp of embodiment of this invention. 従来の誘導加熱による薄板異形鋼板の加熱方法を示す図である。It is a figure which shows the heating method of the thin plate irregular shaped steel plate by the conventional induction heating.

符号の説明Explanation of symbols

５ ワーク（ばね鋼片）、６ コイル、７ コイル、８ ハロゲンランプ
5 Workpieces (spring billets), 6 coils, 7 coils, 8 Halogen lamp

Claims (1)

幅に変動がある薄板異形鋼板からなる部材を誘導加熱により６００℃〜７５０℃まで加熱した後、ハロゲンランプにより焼入温度まで加熱して冷却焼入れする誘導加熱とハロゲンランプによる加熱とを併用したことを特徴とする鋼部材の加熱焼入方法。 After heating to 600 ° C. ~ 750 ° C. by induction heating member made of a thin profiled steel sheet made for variations in the width, that using a combination of heating by induction heating and halogen lamps to cool quenching heated to quenching temperature by the halogen lamp A method of heating and quenching steel members characterized by
JP2008033037A 2008-02-14 2008-02-14 Heat quenching method for thin sheet steel plate using induction heating and halogen lamp Expired - Fee Related JP4891275B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008033037A JP4891275B2 (en) 2008-02-14 2008-02-14 Heat quenching method for thin sheet steel plate using induction heating and halogen lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008033037A JP4891275B2 (en) 2008-02-14 2008-02-14 Heat quenching method for thin sheet steel plate using induction heating and halogen lamp

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2002347155A Division JP4289598B2 (en) 2002-11-29 2002-11-29 Brazing treatment method and apparatus using halogen lamp in combination with induction heating

Publications (2)

Publication Number Publication Date
JP2008121124A JP2008121124A (en) 2008-05-29
JP4891275B2 true JP4891275B2 (en) 2012-03-07

Family

ID=39506185

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008033037A Expired - Fee Related JP4891275B2 (en) 2008-02-14 2008-02-14 Heat quenching method for thin sheet steel plate using induction heating and halogen lamp

Country Status (1)

Country Link
JP (1) JP4891275B2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6431921A (en) * 1987-07-27 1989-02-02 Nippon Ajiyatsukusu Magunesaam Heating method
JPH0813026A (en) * 1994-06-24 1996-01-16 Sony Corp Rapid heat treatment device
JPH1096010A (en) * 1996-09-20 1998-04-14 Hitachi Constr Mach Co Ltd Heat treatment member, heat treatment method, and heat treatment apparatus

Also Published As

Publication number Publication date
JP2008121124A (en) 2008-05-29

Similar Documents

Publication Publication Date Title
CA2912922C (en) Transporting device for hot and thin-walled steel parts
JP2010029943A (en) Method of manufacturing steel plate
JP6211366B2 (en) Heat treatment method for ring member and heat treatment equipment for ring member
JP2013173153A (en) Method of heat treating steel plate for hot press
JP4891275B2 (en) Heat quenching method for thin sheet steel plate using induction heating and halogen lamp
US20200048754A1 (en) Low pressure induction carburization
JP6769532B2 (en) Heat treatment equipment
JP5740698B2 (en) Dehydrogenation treatment method for plated parts
KR20110040021A (en) Local heat treatment system of the automatic borrowing body parts which uses diode laser and the heat treatment method
CN106661646B (en) All-steel fitting
JP3820974B2 (en) Heat treatment method and heat treatment apparatus for steel
JP2004176166A (en) Method and apparatus for heating treatment by using halogen lamp
JP2008106307A (en) Induction hardening method for metallic ring
WO2015029095A1 (en) Method and apparatus for heat-treating welded structure
JP2016204688A (en) Heat treatment method and truck type heat treatment furnace
JP6179055B2 (en) Heating method, heat treatment method and composite coil for deformed workpiece
KR102390484B1 (en) High-frequency heat treatment apparatus
US20220134406A1 (en) Modification of a deep-drawing sheet blank for electric resistance heating
JP4551154B2 (en) Continuous quenching and tempering method using high frequency direct current quenching equipment
JP2007231367A (en) Heat treatment method and device
JP5595017B2 (en) Heat treatment method for plate workpiece
US9313832B2 (en) Method and system for localized heat treating using susceptor
CN114350901A (en) Method for producing a heated steel sheet and tempering station
JP2008075109A (en) Supporting tool for tempering-heating cylindrical member having variation of wall thickness
JP2007239039A (en) Induction-hardening method, induction-hardening facility and induction-hardened article

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080214

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110428

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110520

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20111213

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20111215

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20141222

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees