JP2003290980A - Preheater for welding object - Google Patents
Preheater for welding objectInfo
- Publication number
- JP2003290980A JP2003290980A JP2002093178A JP2002093178A JP2003290980A JP 2003290980 A JP2003290980 A JP 2003290980A JP 2002093178 A JP2002093178 A JP 2002093178A JP 2002093178 A JP2002093178 A JP 2002093178A JP 2003290980 A JP2003290980 A JP 2003290980A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- welded
- base
- welding object
- preheating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Arc Welding In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、溶接作業に先だっ
て溶接対象物を予熱する溶接対象物の予熱装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a preheating device for a welding object which preheats the welding object prior to the welding operation.
【０００２】[0002]
【従来の技術】一般に、溶接による母材への影響を考慮
して、資材（溶接対象物）に対して溶接処理を施す前に
資材を所定温度に加熱するといった予熱処理が行われて
いる。この予熱処理の加熱方法としては、従来、誘導加
熱や、赤外線加熱、カードリッジ式加熱といった技術が
用いられている。誘導加熱は、溶接対象物が導電性を有
している場合にうず電流を生じさせて加熱する手法であ
り、また赤外線加熱は、溶接対象物に赤外線を照射して
加熱する方法であり、カートリッジ式加熱は、熱源であ
るカートリッジを溶接対象物に接触させて加熱する手法
である。いずれであっても常温下で行われる。2. Description of the Related Art Generally, in consideration of the influence of welding on a base material, a preheat treatment is performed such that a material (welding target) is heated to a predetermined temperature before performing a welding process. As a heating method for this preheat treatment, conventionally, techniques such as induction heating, infrared heating, and cartridge heating are used. Induction heating is a method of heating by generating an eddy current when the object to be welded has conductivity, and infrared heating is a method of irradiating the object to be welded with infrared rays to heat the object. The method of heating is a method of heating by bringing a cartridge, which is a heat source, into contact with an object to be welded. In any case, it is performed at room temperature.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
誘導加熱や赤外線加熱といった方法では常温下で大きい
資材（例えばリング状の部材）を均一に効率よく予熱す
るのは難しく、しかも、溶接後において対象物の冷却速
度を制御することが難しいといった問題点を有してい
る。さらに、大きな資材を加熱するには加熱装置自体を
大型化する必要があるのでコストの面で不利である。ま
た、カートリッジ式加熱は溶接対象物を部分的に加熱す
るため、常温下で資材を均一に加熱することは難しい。However, it is difficult to uniformly and efficiently preheat a large material (for example, a ring-shaped member) at room temperature by the conventional methods such as induction heating and infrared heating, and the object after the welding There is a problem that it is difficult to control the cooling rate of the object. Further, it is necessary to increase the size of the heating device itself to heat a large material, which is disadvantageous in terms of cost. Further, since the cartridge type heating partially heats the object to be welded, it is difficult to uniformly heat the material at room temperature.
【０００４】本発明は、以上の課題を解決するものであ
り、溶接対象物を予熱するに際して、大きい資材であっ
ても均一に効率よく加熱するとともに、溶接後における
冷却速度の制御を容易にすることができる溶接対象物の
予熱装置を提供することを目的とする。The present invention has been made to solve the above problems. When preheating a welding object, even a large material can be heated uniformly and efficiently, and the cooling rate after welding can be easily controlled. An object of the present invention is to provide a preheating device for a welding object that can be used.
【０００５】[0005]
【課題を解決するための手段】以上の目的を達成するた
めに、請求項１に係る発明は、溶接対象物を予熱する装
置であって、溶接対象物が設置される基台と、基台に載
置されることにより内側に溶接対象物を収容する収容部
を形成する蓋体と、収容部内の溶接対象物を加熱する加
熱装置とを備え、蓋体は、溶接対象物の溶接部分を露出
させるように分離可能な着脱部を備えることを特徴とす
る。この溶接対象物の予熱装置では、収容部内で溶接対
象物を加熱するため、放熱が非常に少なく、大きい資材
であっても均一に効率よく短時間で加熱することが可能
となり、さらに、蓋体の着脱部を分離するだけで溶接対
象物の溶接部分を露出するので、溶接作業時に溶接対象
物の温度が低下するのを抑制することが可能となる。ま
た、溶接対象物を収容部に設置したまま溶接するので、
溶接後の温度保持や冷却速度などを容易に制御すること
が可能となる。In order to achieve the above object, the invention according to claim 1 is an apparatus for preheating a welding object, and a base on which the welding object is installed, and a base. A lid for forming an accommodating portion for accommodating an object to be welded by being placed on the inner surface, and a heating device for heating the object to be welded in the accommodating portion, and the lid is a portion for welding a welding object It is characterized in that it is provided with a detachable part that can be separated so as to be exposed. In this preheating device for the welding object, the welding object is heated in the accommodating portion, so that heat radiation is very small, and even large materials can be heated uniformly and efficiently in a short time. Since the welded portion of the welding object is exposed only by separating the attachment / detachment portion, it is possible to prevent the temperature of the welding object from decreasing during the welding operation. Also, because the welding is performed while the object to be welded is installed in the housing,
It becomes possible to easily control the temperature retention and cooling rate after welding.
【０００６】請求項２に係る発明は、請求項１の予熱装
置において、蓋体が複数の着脱部を備え、溶接対象物の
溶接部分に応じて分離する着脱部を選択可能とすること
を特徴とする。この溶接対象物の予熱装置では、複数の
着脱部の中から選択して分離することで溶接部分を露出
させるので、溶接部分の大小に対応して収容部を開放す
る大きさを容易に調節することが可能となり、しかも、
溶接作業時に溶接対象物が冷めるのを十分に抑制するこ
とが可能となる。According to a second aspect of the present invention, in the preheating device according to the first aspect, the lid has a plurality of attachment / detachment portions, and the attachment / detachment portions to be separated according to the welding portion of the object to be welded can be selected. And In this preheating device for the welding object, the welding portion is exposed by selecting from the plurality of attaching / detaching portions and separating the attaching / detaching portion, so that the size for opening the accommodation portion can be easily adjusted according to the size of the welding portion. Is possible, and
It becomes possible to sufficiently prevent the object to be welded from cooling during the welding operation.
【０００７】請求項３に係る発明は、請求項１または２
の予熱装置にいおいて、基台が、溶接対象物を保持する
保持部を備えることを特徴とする。この溶接対象物の予
熱装置では、基台に設けられた保持部によって溶接対象
物を保持するため、溶接作業時に溶接対象物が不用意に
動くのを規制し、溶接作業の安定性を確保することが可
能となる。The invention according to claim 3 is the invention according to claim 1 or 2.
In the preheating device, the base is provided with a holding portion that holds the object to be welded. In this welding object preheating device, since the welding object is held by the holding portion provided on the base, the welding object is prevented from being inadvertently moved during the welding operation, and the stability of the welding operation is ensured. It becomes possible.
【０００８】請求項４に係る発明は、請求項３の予熱装
置において、保持部が、溶接対象物をはめ込んで保持す
る凹部であることを特徴とする。この溶接対象物の予熱
装置では、凹部に溶接対象物をはめ込んで保持するの
で、簡単な構造で溶接対象物を保持することが可能とな
り、さらに、基台への溶接対象物のセットといった簡単
な作業で溶接対象物の保持が完了するので、溶接前段階
の作業性を向上させることが可能となる。According to a fourth aspect of the present invention, in the preheating device according to the third aspect, the holding portion is a recess for fitting and holding an object to be welded. Since this welding object preheating device holds the welding object by fitting it into the recess, it is possible to hold the welding object with a simple structure, and further, to set the welding object on the base easily. Since the holding of the object to be welded is completed by the work, it is possible to improve the workability in the pre-welding stage.
【０００９】請求項５に係る発明は、請求項１、２、３
または４の予熱装置において、加熱装置の一部が着脱部
に配置されることを特徴とする。この溶接対象物の予熱
装置では、蓋体から分離される着脱部にも加熱装置の一
部が配されるので、溶接対象物の加熱を効率よく行うこ
とが可能となり、特に、着脱部が大きいときや複数の着
脱部がある場合に、溶接対象物の加熱を効率よく行うこ
とが可能となる。The invention according to claim 5 relates to claims 1, 2, 3
Alternatively, in the preheating device of No. 4, a part of the heating device is arranged in the attachment / detachment portion. In this welding object preheating device, part of the heating device is also arranged in the attachment / detachment portion separated from the lid, so that the welding object can be efficiently heated, and in particular, the attachment / detachment portion is large. At this time or when there are a plurality of attachment / detachment parts, it becomes possible to efficiently heat the object to be welded.
【００１０】[0010]
【発明の実施の形態】本発明の実施形態につき図面を参
照して説明する。図１は本発明に係る溶接対象物の予熱
装置の斜視図、図２は図１のＡ−Ａ線に沿った断面図、
図３は予熱装置の展開図である。図１に示すように、こ
の予熱装置は、溶接対象物Ｘを溶接に先立って加熱する
ものであり、溶接対象物Ｘが設置される基台１と、基台
１に載置されることにより内側に溶接対象物Ｘを収容す
る収容部２を形成する蓋体３と、収容部２内の溶接対象
物Ｘを加熱する加熱装置４と、蓋体３から分離可能な着
脱部５とで概略構成される。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view of a preheating apparatus for a welding object according to the present invention, FIG. 2 is a sectional view taken along line AA of FIG.
FIG. 3 is a development view of the preheating device. As shown in FIG. 1, this preheating device heats the welding target X prior to welding, and by mounting the welding target X on the base 1 and the base 1. A lid 3 that forms an accommodation portion 2 that accommodates the welding object X inside, a heating device 4 that heats the welding object X in the accommodation portion 2, and a detachable portion 5 that is separable from the lid 3 Composed.
【００１１】基台１は、図１〜図３に示すように、熱反
射フィルム等の熱反射性材料で被覆された円盤状の外装
１ａ内にガラスウール等の断熱材１ｂを収納して成形さ
れたものであり、その上面は平面状に形成され、リング
状の溶接対象物Ｘを設置できるようにしている。なお、
基台１の寸法としては、溶接対象物Ｘが外径３００ｍｍ
程度のリング状である場合には外径５００ｍｍ程度に設
定されている。As shown in FIGS. 1 to 3, the base 1 is formed by accommodating a heat insulating material 1b such as glass wool in a disk-shaped exterior 1a covered with a heat reflecting material such as a heat reflecting film. The upper surface thereof is formed in a flat shape so that the ring-shaped welding object X can be installed. In addition,
Regarding the dimensions of the base 1, the welding object X has an outer diameter of 300 mm.
In the case of a ring shape, the outer diameter is set to about 500 mm.
【００１２】蓋体３は、基台１と同じく熱反射フィルム
等の熱反射性材料で被覆された外装３ａ内にガラスウー
ル等の断熱材３ｂを収納したものであり、内側に凹部を
形成することで基台１へ載置したときに収容部２を形成
するようにしている。なお、収容部２の内径や高さは溶
接対象物Ｘの外径や高さ（厚み）に対応させて設定され
ることはも勿論である。また、基台１と蓋体３とを蝶番
等で接続して蓋体３の開閉を容易化することも可能であ
る。さらに、蓋体３は基台１に単に載置させるだけでな
く、両者間をテープ等によりシールすることや、両者間
をクランプ等により挟み込んで固定してもよく、これに
より蓋体３のズレや脱落を防止するとともに、基台１と
蓋体３との隙間を埋めて収容部２の気密化を図り、加熱
効率を向上させることができる。Like the base 1, the lid 3 has a heat insulating material 3b such as glass wool housed in an exterior 3a covered with a heat reflecting material such as a heat reflecting film, and has a recess formed inside. As a result, the housing portion 2 is formed when it is placed on the base 1. It is needless to say that the inner diameter and the height of the housing portion 2 are set corresponding to the outer diameter and the height (thickness) of the welding object X. It is also possible to connect the base 1 and the lid 3 with a hinge or the like to facilitate opening and closing of the lid 3. Further, the lid body 3 may not only be placed on the base 1, but may be sealed by a tape or the like between them, or may be fixed by sandwiching between them by a clamp or the like. It is possible to improve the heating efficiency by preventing the falling off and the falling off, filling the gap between the base 1 and the lid 3 to make the housing portion 2 airtight.
【００１３】加熱装置４は、電熱線をシート状に形成し
たものが用いられ、溶接対象物Ｘを載置する基台１の上
面部分と、蓋体３の内面部分（収納部２の天井部分）と
にそれぞれ配置される。すなわち、加熱装置４が収容部
２内を加熱するように配置されることで、いわゆるマン
トル型のヒータを構成する。加熱温度としては例えば７
００℃〜９００℃である。なお、加熱装置４としては電
熱線に限定するものではなく、誘導加熱や赤外線加熱、
マイクロ波加熱などの加熱手段を用いることが可能であ
る。また、加熱装置４を基台１及び蓋体３の双方に配置
することに限定されず、何れか一方のみに配置してもよ
い。また、各加熱装置４には電源コード４ａを介して電
力が供給される。As the heating device 4, a sheet-shaped heating wire is used. The heating device 4 has an upper surface portion of the base 1 on which the welding object X is placed and an inner surface portion of the lid 3 (the ceiling portion of the storage portion 2). ) And placed respectively. That is, by arranging the heating device 4 so as to heat the inside of the housing portion 2, a so-called mantle type heater is configured. For example, the heating temperature is 7
The temperature is 00 ° C to 900 ° C. The heating device 4 is not limited to the heating wire, but may be induction heating, infrared heating,
It is possible to use heating means such as microwave heating. Further, the heating device 4 is not limited to being arranged on both the base 1 and the lid body 3, and may be arranged on only one of them. Further, electric power is supplied to each heating device 4 through the power cord 4a.
【００１４】着脱部５は、蓋体３の一部を切り欠くよう
に形成されたものであり、基台１や蓋体３と同様に、熱
反射フィルム等の熱反射性材料で被覆された外装内にガ
ラスウール等の断熱材を収納して構成される。従って、
着脱部５を取り付けた場合には蓋体３が完全な状態とな
り、収容部２を閉空間にする一方、着脱部５を取り外し
た場合には、収容部２の一部を開放した状態、すなわち
収容部２に入っている溶接対象物Ｘの一部を露出させた
状態となる。なお、図示の着脱部５は、蓋体３の中心か
ら所定角度で周縁に達する略三角形状に形成されている
が、この形状に限定されず、四角形状や円形状であって
もよく、また、その大きさも任意である。さらに、蓋体
３の上面の一部を窓状に取り外し可能な形態（蓋体３の
周縁まで切り欠かない形態）であってもよい。The attachment / detachment portion 5 is formed by cutting out a part of the lid body 3 and, like the base 1 and the lid body 3, is covered with a heat reflecting material such as a heat reflecting film. It is configured by housing a heat insulating material such as glass wool in the exterior. Therefore,
When the attachment / detachment section 5 is attached, the lid 3 is in a complete state, and the accommodation section 2 is closed. On the other hand, when the attachment / detachment section 5 is removed, a part of the accommodation section 2 is opened, that is, A part of the welding object X contained in the housing 2 is exposed. In addition, although the attaching / detaching portion 5 shown in the figure is formed in a substantially triangular shape that reaches the peripheral edge at a predetermined angle from the center of the lid body 3, it is not limited to this shape and may be a square shape or a circular shape. , Its size is also arbitrary. Further, a part of the upper surface of the lid body 3 may be detachable in a window shape (a shape in which the peripheral edge of the lid body 3 is not cut out).
【００１５】着脱部５の蓋体３への保持は、蓋体３の切
り欠き部分に着脱部５を強く差し込むことで両者間の摩
擦力により行う他に、フックやボタン、面ファスナ等を
用いることも可能である。また、蓋体３と着脱部５との
隙間をテープ等で積極的にシールすることで、収容部２
の気密化を図り、加熱効率を向上させることができる。The attachment / detachment portion 5 is held on the lid body 3 by firmly inserting the attachment / detachment portion 5 into the cutout portion of the lid body 3 by frictional force between the two, and also by using hooks, buttons, hook-and-loop fasteners or the like. It is also possible. Further, by positively sealing the gap between the lid body 3 and the attachment / detachment portion 5 with a tape or the like, the accommodation portion 2
Can be made airtight and the heating efficiency can be improved.
【００１６】着脱部５の内面側は収容部２の内壁の一部
となるが、図示のものでは加熱装置が配置されていな
い。ただし、着脱部５の内面に電熱線等の加熱装置を配
置することは任意であり、ここに加熱装置を配置したと
きは他の加熱装置４の一部として収容部２内を加熱する
ものとして働く。着脱部５に備える加熱装置への電力の
供給は、例えば、基台１等に備える電源コード４ａとは
別の電源コードから直接供給する方法や、着脱部５に電
源供給用の端子を設け、蓋体３への装着時に基台１また
は蓋体３の端子と接続させて基台１等の電源コード４ａ
を介して供給する方法などが採用可能である。The inner surface side of the attaching / detaching portion 5 becomes a part of the inner wall of the accommodating portion 2, but the heating device is not arranged in the illustrated one. However, it is optional to arrange a heating device such as a heating wire on the inner surface of the attachment / detachment part 5, and when the heating device is arranged here, the inside of the housing part 2 is heated as a part of another heating device 4. work. For supplying power to the heating device provided in the attachment / detachment section 5, for example, a method of directly supplying from a power cord different from the power cord 4a provided in the base 1 or the like, or a terminal for supplying power to the attachment / detachment section 5, A power cord 4a for the base 1 or the like by connecting to the base 1 or a terminal of the cover 3 when the base 3 is attached to the base 3.
It is possible to adopt a method of supplying via the.
【００１７】以上のように構成された予熱装置について
使用状態を説明する。図３に示すように、蓋体３を開い
た状態でリング状の溶接対象物Ｘを基台１上に載置す
る。次いで、蓋体３を基台１上に設置して溶接対象物Ｘ
を収容部２内に収容するとともに加熱装置４を駆動して
溶接対象物Ｘを所望温度まで加熱する。このとき、収容
部２内の温度をセンサ等によりモニタして管理するか、
予め溶接対象物Ｘが所望温度まで加熱されるまでの時間
を計測しておき、その加熱時間を管理することで溶接対
象物Ｘを所望温度まで予熱する。なお、予熱温度は、溶
接対象物Ｘの材質に応じて適宜決定される。このよう
に、溶接対象物Ｘは収容部２内で加熱されるため、短時
間で均一に効率よく加熱されることになる。The usage state of the preheating device configured as described above will be described. As shown in FIG. 3, the ring-shaped welding object X is placed on the base 1 with the lid 3 opened. Next, the lid 3 is placed on the base 1 and the welding target X
Is housed in the housing portion 2 and the heating device 4 is driven to heat the welding object X to a desired temperature. At this time, whether the temperature in the housing section 2 is monitored and managed by a sensor or the like,
The time until the welding target X is heated to the desired temperature is measured in advance, and the heating time is managed to preheat the welding target X to the desired temperature. The preheating temperature is appropriately determined according to the material of the welding target X. As described above, the object X to be welded is heated in the accommodating portion 2, so that the object X is heated uniformly and efficiently in a short time.
【００１８】次に、着脱部５を取り外して溶接対象物Ｘ
の溶接部分Ｘａを露出させる。このとき、収納部２は着
脱部２の大きさだけ開放されるので収納部２の温度低下
（ひいては溶接対象物Ｘの温度低下）を抑制する。そし
て、図示しない溶接トーチを溶接部分Ｘａに当てて溶接
作業を行う。ここで、溶接部分Ｘａとしてはクラック等
の人工欠陥に対する補修溶接（例えば肉盛り溶接など）
が行われる。また、使用される溶接装置としてはプラズ
マ溶接装置やガス溶接装置など各種のものが用いられ
る。Next, the attachment / detachment section 5 is removed to remove the welding object X.
The welded part Xa of is exposed. At this time, the storage part 2 is opened by the size of the attachment / detachment part 2, so that the temperature decrease of the storage part 2 (and thus the temperature decrease of the welding object X) is suppressed. Then, a welding torch (not shown) is applied to the welding portion Xa to perform welding work. Here, as the welded portion Xa, repair welding for artificial defects such as cracks (for example, overlay welding)
Is done. As the welding device used, various devices such as a plasma welding device and a gas welding device are used.
【００１９】前述したように、予熱後に着脱部５を取り
外しても溶接対象物Ｘの温度低下が抑えられることに加
えて、溶接時及び溶接後においても同様に溶接対象物Ｘ
の温度低下が抑えられる。従って、溶接後の溶接対象物
Ｘの温度保持や冷却速度の制御を容易に行うことができ
る。As described above, even if the attaching / detaching part 5 is removed after the preheating, the temperature drop of the welding object X can be suppressed, and the welding object X can also be similarly welded during and after the welding.
It is possible to suppress the temperature drop. Therefore, it is possible to easily maintain the temperature of the welding object X after welding and control the cooling rate.
【００２０】図４は、本発明に係る予熱装置の他の実施
形態を示す断面図である。この予熱装置は、基台１が溶
接対象部物Ｘを保持する保持部を備える点に特徴があ
る。図４に示すように、基台１の上面部分には溶接対象
物の外形に合わせて凹部（保持部）６が設けられ、この
凹部６に加熱装置４が配置されている。このように、溶
接対象物Ｘが凹部６内にセットされるので、溶接対象物
Ｘがずれるを防止し、収容部２内での位置決め及び溶接
作業の安定化を図ることができる。FIG. 4 is a sectional view showing another embodiment of the preheating device according to the present invention. This preheating device is characterized in that the base 1 includes a holding portion that holds the welding target object X. As shown in FIG. 4, a concave portion (holding portion) 6 is provided on the upper surface portion of the base 1 so as to match the outer shape of the object to be welded, and the heating device 4 is arranged in the concave portion 6. Since the welding target X is set in the recess 6 in this manner, the welding target X can be prevented from being displaced, and the positioning in the housing 2 and the welding operation can be stabilized.
【００２１】ただし、保持部として図４に示す凹部６に
限定するものではなく、例えば各種治具を用いて基台１
に保持するようにしてもよい。特に、溶接対象物が分離
した物であって溶接により両者間を接合する場合などで
は、各溶接対象物をそれぞれ治具により保持することで
溶接作業中のズレ等が回避され、溶接作業がより一層安
定することになる。However, the holding portion is not limited to the concave portion 6 shown in FIG. 4, but various types of jigs may be used, for example.
May be held at. In particular, when the objects to be welded are separated and the two are to be joined by welding, by holding each object to be welded with a jig, deviations during welding work can be avoided and welding work can be performed more efficiently. It will be more stable.
【００２２】図５は、本発明に係る予熱装置の他の実施
形態を示す斜視図である。この予熱装置は、４個の着脱
部５ａ〜５ｄを備える点に特徴がある。図５に示すよう
に、蓋体３の一部を切り欠いた部分には、４分割された
状態で着脱部５ａ〜５ｄが設けられている。各着脱部５
ａ〜５ｄは、それぞれが断熱材を収納するとともに収容
部２の閉塞及び開放をそれぞれが独立して行うことがで
きるようになっている。しかも、加熱装置を備えること
が可能な点や、装着時にテープ等で蓋体３に固定しつつ
隙間を埋めることが可能な点、形状や大きさが任意であ
る点は、前述した着脱部５と同様である。なお、各着脱
部５ａ〜５ｄのそれぞれが異なる大きさであってもよ
い。FIG. 5 is a perspective view showing another embodiment of the preheating device according to the present invention. This preheating device is characterized in that it has four attachment / detachment parts 5a to 5d. As shown in FIG. 5, the detachable portions 5a to 5d are provided in a state where the lid body 3 is cut out in a four-divided state. Each detachable part 5
Each of a to 5d accommodates a heat insulating material and is capable of independently closing and opening the accommodating portion 2. In addition, it is possible to provide a heating device, it is possible to fill the gap while fixing it to the lid body 3 with a tape or the like at the time of mounting, and the shape and size are arbitrary. Is the same as. In addition, each attachment / detachment part 5a-5d may differ in size.
【００２３】この予熱装置を使用する場合は、先ず、全
ての着脱部５ａ〜５ｄを装着して収容部２を閉塞し、加
熱装置４を駆動して溶接対象物Ｘを加熱する。次いで、
溶接対象物Ｘの溶接部分Ｘｂに応じて選択された着脱部
５ａ及び５ｂを取り外す。これは、図１の溶接部分Ｘａ
より溶接部分Ｘｂが大きい（広い）からであり、さらに
大きい場合は着脱部５ｃや５ｄも合わせて取り外す。こ
のように、溶接部分の大きさに対応して着脱部５ａ〜５
ｄを選択的に取り外すことができるため、溶接時におけ
る収容部２の開放量を最小限に抑えることができ、溶接
時及び溶接後の放熱を抑制することができる。When this preheating device is used, first, all the attaching / detaching parts 5a to 5d are mounted to close the housing part 2, and the heating device 4 is driven to heat the welding object X. Then
The attaching / detaching portions 5a and 5b selected according to the welded portion Xb of the welding object X are removed. This is the welded portion Xa in FIG.
This is because the welded portion Xb is larger (wider). If the welded portion Xb is even larger, the attachment / detachment portions 5c and 5d are also removed. In this way, the attachment / detachment portions 5a-5
Since d can be selectively removed, the opening amount of the housing portion 2 at the time of welding can be minimized, and heat dissipation at the time of welding and after heat can be suppressed.
【００２４】なお、前記実施の形態において示した各構
成部材の諸形状や組み合わせ等は一例であって、本発明
の趣旨から逸脱しない範囲において設計要求等に基づき
種々変更可能である。例えば、図示の予熱装置では収容
部２の形状が予熱対象物Ｘの外形に合わせて円形状に形
成されているが、これに限定されず収容部２に矩形状に
形成することは任意である。The shapes, combinations and the like of the respective constituent members shown in the above-mentioned embodiment are examples, and can be variously changed based on design requirements and the like without departing from the spirit of the present invention. For example, in the illustrated preheating device, the shape of the housing portion 2 is formed in a circular shape according to the outer shape of the preheating target object X, but the shape is not limited to this, and the housing portion 2 may be formed in a rectangular shape. .
【００２５】[0025]
【発明の効果】以上説明したように、請求項１に係る溶
接対象物の予熱装置は、収容部内で溶接対象物を加熱す
るため、放熱が非常に少なく、大きい資材であっても均
一に効率よく短時間で加熱することができ、さらに、蓋
体の着脱部を分離するだけで溶接対象物の溶接部分を露
出するので、溶接作業時に溶接対象物の温度が低下する
のを抑制することができる。また、溶接対象物を収容部
に設置したまま溶接するので、溶接後の温度保持や冷却
速度などを容易に制御することができる。As described above, the preheating device for an object to be welded according to claim 1 heats the object to be welded in the accommodating portion, so that the heat radiation is very small, and even a large material can be efficiently treated. It can be heated well in a short time, and since the welded part of the welding object is exposed simply by separating the detachable part of the lid, it is possible to suppress the temperature of the welding object from dropping during welding work. it can. Further, since the object to be welded is welded while being installed in the housing, it is possible to easily control the temperature retention and cooling rate after welding.
【００２６】請求項２に係る溶接対象物の予熱装置は、
複数の着脱部の中から選択して分離することで溶接部分
を露出させるので、溶接部分の大小に対応して収容部を
開放する大きさを容易に調節することができ、しかも、
溶接作業時に溶接対象物が冷めるのを十分に抑制するこ
とができる。請求項３に係る溶接対象物の予熱装置は、
基台に設けられた保持部によって溶接対象物を保持する
ため、溶接作業時に溶接対象物が不用意に動くのを規制
し、溶接作業の安定性を確保することができる。The preheating device for a welding object according to claim 2 is
Since the welding part is exposed by selecting from the plurality of attaching / detaching parts and separating it, the size of opening the accommodating part can be easily adjusted according to the size of the welding part.
It is possible to sufficiently prevent the object to be welded from cooling during the welding operation. The preheating device for a welding object according to claim 3 is
Since the object to be welded is held by the holding portion provided on the base, it is possible to prevent the object to be welded from unintentionally moving during the welding operation and ensure the stability of the welding operation.
【００２７】請求項４に係る溶接対象物の予熱装置は、
凹部に溶接対象物をはめ込んで保持するので、簡単な構
造で溶接対象物を保持することができ、さらに、基台へ
の溶接対象物のセットといった簡単な作業で溶接対象物
の保持が完了するので、溶接前段階の作業性を向上させ
ることができる。請求項５に係る溶接対象物の予熱装置
は、蓋体から分離される着脱部にも加熱装置の一部が配
されるので、溶接対象物の加熱を効率よく行うことがで
き、特に、着脱部が大きいときや複数の着脱部がある場
合に、溶接対象物の加熱を効率よく行うことができる。A preheating device for a welding object according to claim 4 is
Since the object to be welded is fitted and held in the recess, the object to be welded can be held with a simple structure, and the holding of the object to be welded is completed by simple work such as setting the object to be welded on the base. Therefore, the workability before welding can be improved. In the preheating device for the welding object according to claim 5, since the heating device is also partially disposed in the attaching / detaching portion separated from the lid, the welding object can be efficiently heated. When the part is large or when there are a plurality of attachment / detachment parts, the object to be welded can be efficiently heated.
【図１】 本発明に係る溶接対象物の予熱装置の実施形
態を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of a preheating apparatus for a welding object according to the present invention.
【図２】 図１のＡ−Ａ線に沿った断面図である。FIG. 2 is a cross-sectional view taken along the line AA of FIG.
【図３】 図１の予熱装置において蓋体を開いた状態を
示す斜視図である。FIG. 3 is a perspective view showing a state where a lid is opened in the preheating device of FIG.
【図４】 本発明に係る予熱装置の他の実施形態を示す
断面図である。FIG. 4 is a cross-sectional view showing another embodiment of the preheating device according to the present invention.
【図５】 本発明に係る予熱装置の他の実施形態を示す
斜視図である。FIG. 5 is a perspective view showing another embodiment of the preheating device according to the present invention.
Ｘ 溶接対象物 Ｘａ、Ｘｂ 溶接部分 １ 基台 ２ 収容部 ３ 蓋体 ４ 加熱装置 ５、５ａ、５ｂ、５ｃ、５ｄ 着脱部 ６ 凹部（保持部） X welding target Xa, Xb Welded part 1 base 2 accommodation 3 lid 4 heating device 5, 5a, 5b, 5c, 5d Detachable part 6 Recessed part (holding part)
フロントページの続き (72)発明者 荒井 幹也 東京都西東京市向台町三丁目５番１号 石 川島播磨重工業株式会社田無工場内 Ｆターム(参考） 4E001 DG05 Continued front page (72) Inventor Mikiya Arai Stone, 3-5-1, Mukodai-cho, Nishi-Tokyo, Tokyo Kawashima Harima Heavy Industries Ltd. Tanashi factory F-term (reference) 4E001 DG05
Claims (5)
とにより内側に前記溶接対象物を収容する収容部を形成
する蓋体と、前記収容部内の溶接対象物を加熱する加熱
装置とを備え、 前記蓋体は、前記溶接対象物の溶接部分を露出させるよ
うに分離可能な着脱部を備えることを特徴とする溶接対
象物の予熱装置。1. A device for preheating an object to be welded, comprising: a base on which the object to be welded is installed; and an accommodating portion for accommodating the object to be welded inside when mounted on the base. And a heating device that heats a welding object in the housing portion, and the lid body is provided with a detachable attachment / detachment portion that exposes a welded portion of the welding object. Preheating device for welding objects.
接対象物の溶接部分に応じて分離する着脱部を選択可能
とすることを特徴とする請求項１記載の溶接対象物の予
熱装置。2. The preheating of a welding object according to claim 1, wherein the lid includes a plurality of the attaching / detaching portions, and the attaching / detaching portion to be separated according to a welding portion of the welding object can be selected. apparatus.
部を備えることを特徴とする請求項１または２記載の溶
接対象物の予熱装置。3. The preheating apparatus for an object to be welded according to claim 1, wherein the base has a holding portion for holding the object to be welded.
保持する凹部であることを特徴とする請求項３記載の溶
接対象物の予熱装置。4. The preheating apparatus for an object to be welded according to claim 3, wherein the holding portion is a recess for fitting and holding the object to be welded.
に配置されることを特徴とする請求項１，２，３または
４記載の溶接対象物の予熱装置。5. The preheating device for the welding object according to claim 1, wherein a part of the heating device is arranged in the attachment / detachment part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002093178A JP2003290980A (en) | 2002-03-28 | 2002-03-28 | Preheater for welding object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002093178A JP2003290980A (en) | 2002-03-28 | 2002-03-28 | Preheater for welding object |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003290980A true JP2003290980A (en) | 2003-10-14 |
Family
ID=29237766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002093178A Pending JP2003290980A (en) | 2002-03-28 | 2002-03-28 | Preheater for welding object |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003290980A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106514075A (en) * | 2015-11-27 | 2017-03-22 | 安徽马钢工程技术集团有限公司 | Application of welding preheating device |
| CN117655622A (en) * | 2024-01-31 | 2024-03-08 | 宁波尚进自动化科技有限公司 | Welding table |
-
2002
- 2002-03-28 JP JP2002093178A patent/JP2003290980A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106514075A (en) * | 2015-11-27 | 2017-03-22 | 安徽马钢工程技术集团有限公司 | Application of welding preheating device |
| CN106514075B (en) * | 2015-11-27 | 2017-12-15 | 安徽马钢工程技术集团有限公司 | A kind of application for welding preheating device |
| CN117655622A (en) * | 2024-01-31 | 2024-03-08 | 宁波尚进自动化科技有限公司 | Welding table |
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