JPH06116744A - Formation of electric heating material - Google Patents

Formation of electric heating material

Info

Publication number
JPH06116744A
JPH06116744A JP4264694A JP26469492A JPH06116744A JP H06116744 A JPH06116744 A JP H06116744A JP 4264694 A JP4264694 A JP 4264694A JP 26469492 A JP26469492 A JP 26469492A JP H06116744 A JPH06116744 A JP H06116744A
Authority
JP
Japan
Prior art keywords
oxide film
electric heating
wire material
heating element
spiral
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
Application number
JP4264694A
Other languages
Japanese (ja)
Inventor
Kouzou Kouno
紅三 河野
Akira Kawaguchi
明 川口
Masaoki Konishi
正翁 小西
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.)
Tokai Rika Co Ltd
Original Assignee
Tokai Rika 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 Tokai Rika Co Ltd filed Critical Tokai Rika Co Ltd
Priority to JP4264694A priority Critical patent/JPH06116744A/en
Publication of JPH06116744A publication Critical patent/JPH06116744A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To manufacture spiral-state exothermic material, in which metal wire materials are not mutually shorted, in the simple process by irradiating the surface of the metal wire material with laser beam to form oxide film, at the time of manufacturing the spiral-state exothermic material with the metal wire. CONSTITUTION:The Fe-Cr-Al alloy-made wire material 1 having rectangular shape of cross section is formed on a mandrel 3 in the spiral-state with forming rollers 7 through a cutter 4 while being fed out to the arrow mark direction with rollers 2. In the way of feeding out this wire material 1, the laser beam 6, whose position of focus is separated a little from the surface of the wire material 1 irradiates and heats the wire material 1, with a condenser lens 5 to form the thin oxide film on the one side surface of the wire material 1 in a short time. In the case of manufacturing the exothermic material by winding the Fe-Cr-Al alloy-made wire material 1 having the oxide film. in the spiral-state, the oxide film of the wire material 1 forms the insulating layer and the contacting wire material are not mutually shorted and heat is uniformly generated and also, since there is no oxide film on the other side of the wire material, at the time of connecting the terminals, any trouble for removing the oxide film by grinding is unnecessary.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、自動車用シガレットラ
イタなどで使用される渦巻き状などの電熱体を素材から
形成する方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a spiral-shaped electric heating element used in an automobile cigarette lighter or the like from a raw material.

【0002】[0002]

【従来の技術】従来、自動車用シガレットライタには、
帯状や線状の細長い素材を渦巻き状に巻いて形成した電
熱体が使用されている。この電熱体の形成方法を図4に
示している。図において、1は電熱体の素材として鉄−
クロム−アルミニウム合金から形成された断面長方形の
帯材である。この電熱体素材1を渦巻き状に成形するの
は、素材1を成形機の有する送りローラ2で送り出しな
がらマンドレル3で中心部を巻き取り、成形ローラ7で
外周を保持しながら巻き、所定の長さの巻き加工が終了
したときにカッター4により切断することで行う。
2. Description of the Related Art Conventionally, cigarette lighters for automobiles are
An electric heating element formed by spirally winding a strip-shaped or linear elongated material is used. A method for forming this electric heating element is shown in FIG. In the figure, 1 is iron as a material of the electric heating element.
It is a strip material having a rectangular cross section formed from a chromium-aluminum alloy. This electric heating material 1 is formed into a spiral shape by winding the material 1 with a mandrel 3 while feeding it with a feed roller 2 of a molding machine, and winding it with a forming roller 7 while holding the outer circumference. It is performed by cutting with a cutter 4 when the reeling process is finished.

【0003】このようにして形成した電熱体10を図5
に示している。一般に、この電熱体10は、成形後に電
気炉による大気中加熱を行なうことにより、その表面に
酸化被膜が形成される。酸化被膜を形成するのは、電熱
体10に通電したときに渦巻き状に巻いた部分同士が接
触してショートし、電熱体10の均一な発熱が妨げられ
るのを防止するためである。なお、電熱体10は、電気
炉での加熱温度と加熱時間を適宜設定することにより、
酸化被膜が通常は0.5〜2μm程度の膜厚に形成された
後、大気中で冷却される。
The electric heating element 10 formed in this way is shown in FIG.
Is shown in. In general, this electric heating body 10 is heated in the air in an electric furnace after molding, so that an oxide film is formed on the surface thereof. The oxide film is formed in order to prevent the spirally wound portions from coming into contact with each other and short-circuiting when the electric heating element 10 is energized, thereby preventing uniform heating of the electric heating element 10. In addition, the electric heating element 10 is set by appropriately setting the heating temperature and the heating time in the electric furnace,
The oxide film is usually formed to a film thickness of about 0.5 to 2 μm and then cooled in the atmosphere.

【0004】酸化被膜処理が終わると、電熱体10の外
側の端部と内側の端部の酸化被膜が、電熱体10に通電
用の端子を接合するために除去される。酸化被膜は、端
子を接合すべき位置に応じて、電熱体10の表面、裏面
または側面に形成されたものが、砥石やサンドペーパー
などを用いて研摩することにより所定の長さだけ除去さ
れる。電熱体10は、以上の工程を経て形成された後、
シガレットライタ等に組み込まれる。
When the oxide film treatment is completed, the oxide film on the outer end and the inner end of the electric heating element 10 is removed to join the electric heating element 10 with a terminal for energization. The oxide film, which is formed on the front surface, the back surface, or the side surface of the electric heating element 10 according to the position where the terminals are to be joined, is removed by a predetermined length by polishing with a grindstone or sandpaper. . After the electric heating element 10 is formed through the above steps,
It is built into a cigarette lighter.

【0005】[0005]

【発明が解決しようとする課題】しかし、以上説明した
従来の方法では、次のような問題があった。すなわち、
第1に、酸化被膜を形成するのに比較的長時間を要する
こと、第2に、酸化被膜を形成した後にこれを部分的に
除去する工程が必要であり、製造工程に無駄があるこ
と、第3に、被膜の除去に研摩が必要で全工程の自動化
が難しく、生産性が優れていないことである。このよう
な問題は、素材を渦巻き状に成形した電熱体だけでな
く、コイル状や波状などの他の形状に成形し、その表面
に酸化被膜を形成する場合にも生じ得る。
However, the conventional method described above has the following problems. That is,
First, it takes a relatively long time to form an oxide film, and secondly, there is a need for a step of partially removing the oxide film after it has been formed, which is a waste of the manufacturing process. Thirdly, polishing is required to remove the coating, automation of the whole process is difficult, and productivity is not excellent. Such a problem may occur not only when the material is formed into a spiral shape, but also when the material is formed into another shape such as a coil shape or a wavy shape, and an oxide film is formed on the surface thereof.

【0006】したがって、本発明の解決すべき技術的課
題は、帯状や線状の素材から酸化被膜を有する電熱体を
形成する際に、これらの問題が生じないようにすること
である。
Therefore, a technical problem to be solved by the present invention is to prevent these problems when forming an electric heating body having an oxide film from a strip-shaped or linear material.

【0007】[0007]

【課題を解決するための手段】上述の技術的課題を解決
するため、本発明に係る電熱体の形成方法は以下のよう
に構成されている。すなわち、帯状や線状などの細長い
電熱体素材を渦巻き状やコイル状その他の所定形状に成
形する工程と、その成形工程中に電熱体素材の表面に酸
化被膜を形成する工程とを有しており、酸化被膜形成工
程が、電熱体素材における被膜を形成すべき領域にレー
ザ光を照射し、電熱体素材の表面を加熱することにより
行われることを特徴としている。
In order to solve the above technical problems, the method for forming an electric heating element according to the present invention is configured as follows. That is, it has a step of forming a strip-shaped or linear elongated electric heating material into a predetermined shape such as a spiral shape or a coil, and a step of forming an oxide film on the surface of the electric heating material during the forming step. It is characterized in that the oxide film forming step is performed by irradiating a region of the electric heating element material where a film is to be formed with laser light to heat the surface of the electric heating element material.

【0008】[0008]

【作用・効果】上記構成においては、酸化被膜は、電熱
体素材が渦巻き状、コイル状あるいは波状などに成形さ
れるときに、被膜を形成すべき領域にレーザ光を照射す
ることにより同時に形成される。レーザ光の照射は、例
えば、素材を送りながらマンドレルに巻き取って渦巻き
状に形成する際に、定位置に固定したレーザ光照射装置
により行ったり、レーザ光照射装置自体を移動させなが
ら行ったりすることができる。このようにしてレーザ光
を照射すれば、電熱体素材を渦巻き状やコイル状に成形
したときには、被膜が不要な端部等を除いて既に酸化被
膜が形成された状態となる。したがって、通電のための
端子等は、電熱体を成形した後すぐに端部等に接合する
ことができる。
In the above structure, the oxide film is formed at the same time by irradiating the region where the film is to be formed with laser light when the electric heating element material is formed into a spiral shape, a coil shape, or a wavy shape. It The irradiation of the laser light is performed, for example, by the laser light irradiation device that is fixed at a fixed position when the material is wound around the mandrel to form a spiral while being fed, or while the laser light irradiation device itself is being moved. be able to. By irradiating the laser beam in this manner, when the electrothermal material is formed into a spiral shape or a coil shape, the oxide film is already formed except for the end portion where the film is unnecessary. Therefore, the terminals and the like for energization can be joined to the ends and the like immediately after the electric heating body is molded.

【0009】上記構成によれば、酸化被膜の形成をレー
ザ光の照射により行うため、電気炉を用いる場合よりも
加熱時間が短縮でき、したがって、被膜の形成時間を短
縮できる。また、被膜が必要な部分にのみ形成されるの
で、被膜の除去という無駄な工程を省くことができる。
さらに、電熱体素材の送り時などにレーザ光の照射タイ
ミングをとることにより被膜の形成領域と非形成領域と
を定めることが容易に可能であり、しかも被膜の除去の
ための研摩が不要であるから、全工程の自動化が容易
で、従来よりも生産性が向上する。
According to the above construction, since the oxide film is formed by irradiating the laser beam, the heating time can be shortened as compared with the case where an electric furnace is used, and therefore the film formation time can be shortened. Further, since the coating film is formed only in a necessary portion, it is possible to omit an unnecessary process of removing the coating film.
Furthermore, it is possible to easily determine the film formation region and the film non-formation region by adjusting the irradiation timing of the laser light when the electric heating material is being fed, and the polishing for removing the film is unnecessary. Therefore, automation of the whole process is easy and productivity is improved as compared with the conventional method.

【0010】[0010]

【実施例】以下に、図1から図3を用いて、本発明の一
実施例に係る電熱体の形成方法について詳細に説明す
る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for forming an electric heating element according to an embodiment of the present invention will be described in detail below with reference to FIGS.

【0011】図1は、この電熱体形成方法を示してい
る。図において、1は従来例で説明したものと同様に、
断面長方形に形成された帯状の電熱体素材であり、成形
機のローラ2により送り出され、マンドレル3と成形ロ
ーラ7で渦巻き状に巻き加工される。本実施例において
は、電熱体1の送り時に、送りローラ2とカッター4の
間で、電熱体素材1の表面にYAG(イットリウム・ア
ルミニウム・ガーネット)レーザや炭酸ガスレーザなど
のレーザ光6が照射される。レーザ光6の照射により電
熱体素材1の被照射部は高温となり、酸化被膜が形成さ
れる。
FIG. 1 shows this method for forming an electric heating element. In the figure, 1 is similar to that described in the conventional example,
It is a band-shaped electric heating element material formed in a rectangular cross section, and is sent out by a roller 2 of a molding machine and is spirally processed by a mandrel 3 and a molding roller 7. In this embodiment, when the electric heating element 1 is fed, the surface of the electric heating element material 1 is irradiated with a laser beam 6 such as a YAG (yttrium / aluminum / garnet) laser or a carbon dioxide gas laser between the feeding roller 2 and the cutter 4. It The irradiation of the laser beam 6 raises the temperature of the irradiated portion of the electric heating element material 1 to form an oxide film.

【0012】この方法によれば、酸化被膜の膜厚は、レ
ーザ光6の出力や焦点位置などの設定次第で適宜調整で
きる。本実施例では、レーザ光6の焦点位置を電熱体素
材1を僅かに過ぎた位置に定める集光レンズ5が用いら
れている。また、本実施例では、レーザ光6を素材1の
片側からのみ照射している。ショートを防止するという
酸化被膜形成の目的からすれば、このように片面に酸化
被膜を形成すれば十分であるが、レーザ光6を上下2方
向から照射して電熱体素材1の両面に被膜を形成しても
よい。なお、冷却を速めるために、レーザ光6の照射直
後に空気や窒素ガスなどを素材1に吹き付けるようにし
てもよい。
According to this method, the film thickness of the oxide film can be appropriately adjusted depending on the settings of the output of the laser beam 6 and the focus position. In this embodiment, the condensing lens 5 that sets the focus position of the laser light 6 to a position slightly past the electric heating material 1 is used. Further, in this embodiment, the laser light 6 is emitted only from one side of the material 1. For the purpose of forming an oxide film to prevent a short circuit, it is sufficient to form an oxide film on one side in this way, but the laser beam 6 is irradiated from two directions, up and down, to form a film on both sides of the electric heating element material 1. You may form. In order to speed up the cooling, air, nitrogen gas, or the like may be blown onto the material 1 immediately after the irradiation of the laser light 6.

【0013】図2及び図3は、以上の工程により形成し
た電熱体10の平面図及び側面図を示している。図に1
1,12で示した電熱体10の両端部には、表裏、両側
面とも酸化被膜は形成されていない。このように、電熱
体10の両端部11,12を除いて酸化被膜を形成する
のは、レーザ光6の照射を、両端部11,12を除いた
部分に対してのみ行うように、そのタイミングを設定す
ることにより容易に可能である。
2 and 3 are a plan view and a side view of the electric heating element 10 formed by the above steps. 1 in the figure
No oxide film is formed on both front and back surfaces or both side surfaces of both end portions of the electric heating element 10 shown by 1 and 12. As described above, the oxide film is formed excluding both ends 11 and 12 of the electric heating element 10 so that the laser beam 6 is irradiated only to the part excluding both ends 11 and 12 at the timing. It is easily possible by setting.

【0014】本実施例の方法で電熱体10を形成すれ
ば、酸化被膜を研摩して除去する工程が不要であるか
ら、自動化が容易に可能であり、したがって生産性が向
上する。また、本実施例によれば、電熱体素材1の表面
を比較的短時間で加熱できるから被膜形成時間を従来よ
りも短縮でき、しかも研摩が不要であるから酸化被膜の
除去部に対して端子等を接合した場合に、その接合品質
が安定する。
When the electric heating element 10 is formed by the method of the present embodiment, the step of polishing and removing the oxide film is not required, so that automation can be facilitated and productivity is improved. Further, according to the present embodiment, the surface of the electric heating element material 1 can be heated in a relatively short time, so that the film forming time can be shortened as compared with the conventional case, and since the polishing is unnecessary, the terminal for the oxide film removing portion When joining etc., the joining quality becomes stable.

【図面の簡単な説明】[Brief description of drawings]

【図1】 本発明の一実施例に係る電熱体の形成方法を
示す図である。
FIG. 1 is a diagram showing a method for forming an electric heating element according to an embodiment of the present invention.

【図2】 電熱体の平面図である。FIG. 2 is a plan view of an electric heating element.

【図3】 電熱体の側面図である。FIG. 3 is a side view of an electric heating element.

【図4】 従来例に係る電熱体の形成方法を示す図であ
る。
FIG. 4 is a diagram showing a method for forming an electric heating element according to a conventional example.

【図5】 電熱体の平面図である。FIG. 5 is a plan view of an electric heating element.

【符号の説明】[Explanation of symbols]

1 電熱体素材 2 送りローラ 3 マンドレル 4 カッタ 5 集光レンズ 6 レーザ光 7 成形ローラ 10 電熱体 11,12 両端部 1 Electric Heater Material 2 Feed Roller 3 Mandrel 4 Cutter 5 Condenser Lens 6 Laser Light 7 Forming Roller 10 Electric Heater 11, 12 Both Ends

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 帯状または線状の電熱体素材(1)を所定
の形状に成形する工程と、 上記成形工程中に上記電熱体素材(1)の表面に酸化被膜
を形成する工程とを有し、 上記酸化被膜形成工程が、上記電熱体素材(1)における
被膜を形成すべき領域にレーザ光(6)を照射して該電熱
体素材(1)の表面を加熱することにより行われることを
特徴とする電熱体の形成方法。
1. A step of forming a strip-shaped or linear electric heating element material (1) into a predetermined shape, and a step of forming an oxide film on the surface of the electric heating element material (1) during the forming step. Then, the oxide film forming step is performed by irradiating the area of the electric heating material (1) where the film is to be formed with a laser beam (6) to heat the surface of the electric heating material (1). And a method for forming an electric heating element.
JP4264694A 1992-10-02 1992-10-02 Formation of electric heating material Pending JPH06116744A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4264694A JPH06116744A (en) 1992-10-02 1992-10-02 Formation of electric heating material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4264694A JPH06116744A (en) 1992-10-02 1992-10-02 Formation of electric heating material

Publications (1)

Publication Number Publication Date
JPH06116744A true JPH06116744A (en) 1994-04-26

Family

ID=17406898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4264694A Pending JPH06116744A (en) 1992-10-02 1992-10-02 Formation of electric heating material

Country Status (1)

Country Link
JP (1) JPH06116744A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105581375A (en) * 2014-10-27 2016-05-18 惠州市吉瑞科技有限公司 Forming method for heating element of electronic cigarette and manufacturing method of atomizing assembly
CN105614952A (en) * 2014-10-27 2016-06-01 惠州市吉瑞科技有限公司 Forming method of electronic cigarette heating element, atomizing component and manufacturing method thereof, and electronic cigarette

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63153285A (en) * 1986-12-17 1988-06-25 Canon Inc Production of substrate for heating element

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63153285A (en) * 1986-12-17 1988-06-25 Canon Inc Production of substrate for heating element

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105581375A (en) * 2014-10-27 2016-05-18 惠州市吉瑞科技有限公司 Forming method for heating element of electronic cigarette and manufacturing method of atomizing assembly
CN105614952A (en) * 2014-10-27 2016-06-01 惠州市吉瑞科技有限公司 Forming method of electronic cigarette heating element, atomizing component and manufacturing method thereof, and electronic cigarette
CN105581375B (en) * 2014-10-27 2019-02-12 惠州市吉瑞科技有限公司 The forming method of electronic cigarette heater element and the manufacturing method of atomizing component
CN105614952B (en) * 2014-10-27 2019-03-05 惠州市吉瑞科技有限公司 Forming method, atomizing component and its manufacturing method and electronic cigarette of electronic cigarette heater element

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