JPH05245648A - Method for joining dissimilar material - Google Patents
Method for joining dissimilar materialInfo
- Publication number
- JPH05245648A JPH05245648A JP32314491A JP32314491A JPH05245648A JP H05245648 A JPH05245648 A JP H05245648A JP 32314491 A JP32314491 A JP 32314491A JP 32314491 A JP32314491 A JP 32314491A JP H05245648 A JPH05245648 A JP H05245648A
- Authority
- JP
- Japan
- Prior art keywords
- titanium
- joining
- steel
- welding
- welded
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、チタンと鋼材との異材
接合あるいはチタンクラッド鋼同志を接合（以下異材接
合と呼ぶ。）する方法すなわちチタンの異材接合方法に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for joining dissimilar materials between titanium and steel or joining titanium clad steels (hereinafter referred to as dissimilar material joining), that is, a method for joining dissimilar materials of titanium.
【０００２】[0002]
【従来の技術】チタンは、チタン類似の金属とは接合は
できるが、例えば、チタンクラッド鋼の接合においてチ
タンと母材である炭素鋼あるいは低合金鋼をＡｒ，Ｈｅ
等の不活性ガスを用いてアーク溶接すると、溶融金属中
にＦｅが多量に溶込み、Ｆｅ−Ｔｉの金属間化合物やＴ
ｉＣあるいはＴｉＮ等の化合物が多量に形成され、これ
が溶接金属を脆化させるために接合は不可能といっても
よい。2. Description of the Related Art Titanium can be joined to a metal similar to titanium. For example, in joining titanium clad steel, titanium and carbon steel or a low alloy steel, which is a base material, are made of Ar, He.
When arc welding is performed using an inert gas such as Fe, a large amount of Fe dissolves in the molten metal, and Fe-Ti intermetallic compounds and T
It can be said that joining is impossible because a large amount of compounds such as iC or TiN are formed and this makes the weld metal brittle.
【０００３】従って、従来チタンと鋼材あるいはチタン
クラッド鋼同志を接合するいわゆる異材接合の場合に
は、真空炉内蝋付けにて接合するか、拡散接合のように
金属間化合物を形成しないインサート材を挿入して接合
している。そのために大きさの制約があるのと同時に現
場での接合ができないとか、電子ビーム溶接のように貴
金属類を使用するために高価になるのとともに接合強度
が低い等の欠点がある。Therefore, in the case of so-called dissimilar material joining in which conventional titanium and steel materials or titanium clad steels are joined together, the joining is performed by brazing in a vacuum furnace, or an insert material that does not form an intermetallic compound such as diffusion joining is used. Inserted and joined. For this reason, there are restrictions on the size, and at the same time, there are drawbacks such as inability to perform on-site joining, high cost due to the use of precious metals such as electron beam welding, and low joining strength.
【０００４】図５（ａ），（ｂ）はＦｅを主体とする母
材２の上面に商用Ｔｉ合わせ材３を結合したチタンクラ
ッド鋼１の接合方法を示しているが、図５（ａ）はクラ
ッド鋼１の両端部４、を溶接してから、合わせ材３と同
質のＴｉスペーサ材６を、切り欠き部に載置し、合わせ
材３とこのスペーサ材６を溶接７′して、継手部を構成
している。しかし、この継手部において、母材端縁４の
表面と、スペーサ材６との間には、空隙１０ができこの
空隙が接合強度を低下させる。一方合わせ材３と、スペ
ーサ材６の溶接に際し、クラッド鋼母材２の一部が溶融
し、これが溶接部７の溶着金属中に混入してＴｉＣ，Ｔ
ｉＮ等の化合物やＦｅ−Ｔｉ金属間化合物の脆弱層を生
成せしめ、これが原因となってわれることが起こる。FIGS. 5 (a) and 5 (b) show a joining method of titanium clad steel 1 in which a commercial Ti composite material 3 is joined to the upper surface of a base material 2 mainly composed of Fe. Welds both ends 4 of the clad steel 1 and then places a Ti spacer material 6 of the same quality as the laminated material 3 on the cutout portion, welds the laminated material 3 and this spacer material 6 7 ′, It constitutes the joint. However, in this joint portion, a space 10 is formed between the surface of the base material edge 4 and the spacer material 6, and this space reduces the bonding strength. On the other hand, when the joining material 3 and the spacer material 6 are welded, a part of the clad steel base material 2 is melted, and this is mixed into the weld metal of the welded portion 7 to form TiC, T
A brittle layer of a compound such as iN or a Fe—Ti intermetallic compound is formed, and this may be the cause.
【０００５】このような溶接脆弱層の形成を防ぐため、
図５（ｂ）に示すようにスペーサ材６は、合わせ材３と
溶接せず、合わせ材３間を被覆載置するに止め、その上
部に当て板材８で覆うと共にこれと合わせ材３とを重ね
隅肉溶接部９を形成して接合する継手としている。In order to prevent the formation of such a weld fragile layer,
As shown in FIG. 5 (b), the spacer material 6 is not welded to the mating material 3 and only the space between the mating materials 3 is covered and placed, and the upper part thereof is covered with the pad plate material 8 and the mating material 3 is covered. A lap fillet weld 9 is formed to form a joint.
【０００６】当て板材８は、合わせ材３、スペーサ材６
と同様チタンで構成されており、従って、重ね隅肉溶接
部９における前記の脆化層の問題は起きない。しかし、
この継手は合わせ材の上に押さえ板を溶接するために、
溶接構造が複雑になるのと共に曲げ加工によって空隙部
が拡大されるので加工を伴う構造物には適用できない。[0006] The patch plate material 8 is a mating material 3 and a spacer material 6.
It is made of titanium similarly to the above, and therefore, the problem of the embrittlement layer in the overlap fillet weld 9 does not occur. But,
This joint is for welding the pressure plate on the laminated material,
Since the welded structure becomes complicated and the void is enlarged by the bending process, it cannot be applied to a structure accompanied by working.
【０００７】なお、チタンクラッド鋼の溶接方法は特開
平２−５２１７６号公報に開示されている。A welding method for titanium clad steel is disclosed in Japanese Patent Application Laid-Open No. 2-52176.
【０００８】[0008]
【発明が解決しようとする課題】本発明は、上記した問
題点を解決するものであって、チタンと鋼材あるいはチ
タンクラッド鋼同志などの異材接合するに際して、炉内
接合等の特別な工程を採用することなく、簡易な方法で
脆化の無いしかも耐食性に優れたＡｒ，Ｈｅ等の不活性
ガスを用いたプラズマ溶接法を提供することを目的とす
る。SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problems, and when joining dissimilar materials such as titanium and steel material or titanium clad steel, a special process such as in-furnace joining is adopted. It is an object of the present invention to provide a plasma welding method using an inert gas such as Ar or He, which does not embrittle by a simple method and is excellent in corrosion resistance, without performing the above.
【０００９】[0009]
【問題を解決するための手段】本発明は、上記の目的を
達成するために以下の構成を要旨とする。すなわち、チ
タンと鋼材との接合あるいはチタンクラッド鋼同志など
を接合するに際し、Ａｇ−Ｃｕを主成分とする溶材で、
シールドガスとしてＡｒ，Ｈｅ等の不活性ガスを用いて
プラズマ溶接することを特徴とするチタンと鋼材との異
材接合方法である。なお、プラズマ溶接でのセンターガ
スとして、Ｈｅガスを使用することが好ましいが必要に
応じてＡｒガスを使用しても良い。また上記溶材にはＬ
ｉ，Ｓｎの何れかまたは両方を添加してもよい。The present invention has the following features in order to achieve the above object. That is, when joining titanium and steel, or joining titanium clad steel, etc., a molten material containing Ag-Cu as a main component,
This is a method for joining dissimilar materials between titanium and steel, which is characterized by performing plasma welding using an inert gas such as Ar or He as a shield gas. He gas is preferably used as the center gas in the plasma welding, but Ar gas may be used if necessary. In addition, L
Either or both of i and Sn may be added.
【００１０】以下本発明を詳細に説明する。The present invention will be described in detail below.
【００１１】[0011]
【作用】チタンは、耐食性に優れているため、化学プラ
ントや航空機部品などに使用され、その用途は拡大しつ
つあるが、高価であることが実用上の制約となってい
る。従って腐食雰囲気にはチタン、その反面は強度部材
としての役割を保持するために、低合金鋼、高張力鋼な
どよりなるクラッド鋼が用いられる。使用するチタンは
ＪＩＳに規定されている１種〜３種の何れでもよい。ク
ラッド鋼は、上記のように種々の機器、部品などに使用
されるがこれらの構成部材とするにあたり、上述したよ
うに脆性がなく、接合強度のある接合部を得ることは重
要である。Since titanium has excellent corrosion resistance, it is used in chemical plants and aircraft parts, and its applications are expanding. However, its practical limitation is that it is expensive. Therefore, titanium is used in the corrosive atmosphere, and on the other hand, clad steel made of low alloy steel, high strength steel or the like is used in order to maintain the role as a strength member. Titanium to be used may be any one of 1 to 3 specified in JIS. The clad steel is used in various devices, parts, etc. as described above, but in forming these constituent members, it is important to obtain a bonded portion having no brittleness and a strong bonding strength as described above.
【００１２】すなわちチタンクラッド鋼を接合する場合
には、母材（軟鋼あるいは合金鋼）に開先を設けて母材
同志を同質の溶材を用いて溶接し、この溶接部分では、
母材と、合わせ材（Ｔｉ）同志あるいは合わせ材（Ｔ
ｉ）と同質のスペーサ材とをＡｇ−Ｃｕを主成分とする
溶材を用いて前記プラズマ溶接をする。また、これらの
溶接部端面においては、例えば母材とスペーサ材との間
隙をシールするために、両者間に亘ってＡｇ−Ｃｕを主
成分とする溶材で前記プラズマ溶接法でシール溶接する
ものである。すなわちこのような場合は、何れも鋼母材
とチタンの異材接合となる。That is, when joining titanium clad steel, a groove is formed in a base material (mild steel or alloy steel), the base materials are welded together by using the same quality of molten material, and at this welded portion,
Base material and laminated material (Ti) Comrade or laminated material (T
The plasma welding is performed on the spacer material of the same quality as that of i) using a molten material containing Ag-Cu as a main component. Further, at the end faces of these welded portions, for example, in order to seal the gap between the base material and the spacer material, seal welding is performed by the above-mentioned plasma welding method with a molten material containing Ag-Cu as a main component between the two. is there. That is, in such a case, the dissimilar material joining of the steel base material and titanium is performed in each case.
【００１３】本発明において接合に使用される溶材とし
ては、前記のようにＡｇ−Ｃｕを主成分とするものを用
いるものであり、例えばＪＩＳ Ｚ ３２６１に規定さ
れているＢＡｇ８あるいはＢＡｇ−８Ａ（Ｌｉ：０．１
５〜０．３％添加）系材料でよい。これらの材料にはＳ
ｎを含有してもよく、さらにＺｎを作業性を害しない程
度であれば添加することはできるが多量に添加するとヒ
ュウムの発生が多くなるのでその添加量は少量に制限さ
れる。ＡｇおよびＳｎは溶融点を低く抑さえ、Ｆｅおよ
びＴｉとの反応を防ぎ、Ｃｕは継手強度を向上させ、Ｌ
ｉは軟鋼とのなじみを良くするために用いる。As the melting material used for joining in the present invention, a material containing Ag-Cu as a main component as described above is used. For example, BAg8 or BAg-8A (Li defined in JIS Z3261 is used. : 0.1
5 to 0.3% added) type material may be used. S for these materials
N may be contained, and Zn can be added as long as it does not impair the workability, but if a large amount is added, the generation of fumes increases, so the addition amount is limited to a small amount. Ag and Sn keep the melting point low, prevent reaction with Fe and Ti, Cu improve joint strength and L
i is used to improve compatibility with mild steel.
【００１４】本発明はプラズマ溶接法を用い積極的に溶
融接合するもので、Ａｇ−Ｃｕを主成分とする溶材は金
属間化合物を作らないのと低融点のためにＴＩＧ溶接法
を用いるが、プラズマ溶接法は加熱速度が早く、アーク
の集中力が良いので、溶融金属の溶けわかれがない。According to the present invention, the plasma welding method is used for positive fusion bonding, and the TIG welding method is used because the molten material containing Ag-Cu as a main component does not form an intermetallic compound and has a low melting point. Since the plasma welding method has a high heating rate and a good arc concentration, the molten metal is not melted.
【００１５】なお、プラズマ溶接のセンターガスとし
て、Ｈｅが好ましいが必要に応じて少量のＡｒを使用し
ても良い。通常センターガスとしては水素を用いるが、
水素を使用すると、Ｔｉとの化合物として脆い水素化合
物を形成するので水素を混入させるのは好ましくない。
また、この種の溶材で溶接する場合は開先形状はできる
だけ小さくする方が接合強度の面より好ましい。He is preferable as the center gas for plasma welding, but a small amount of Ar may be used if necessary. Normally, hydrogen is used as the center gas,
When hydrogen is used, a brittle hydrogen compound is formed as a compound with Ti, so it is not preferable to mix hydrogen.
Further, when welding with this type of melt, it is preferable to make the groove shape as small as possible from the viewpoint of joint strength.
【００１６】[0016]
【実施例】図面は本発明の溶接法により得た溶接部の実
施例を示すものである。図１（ａ）はチタンクラッド鋼
１を接合した状態を示し、母材（軟鋼）２と２をプラズ
マ溶接で多層溶接し溶接部５を形成した後、合わせ材３
と同質のＴｉスペーサ材６を切り欠き部に載置し合わせ
材３，３とこのスペーサ材６をＡｇ−Ｃｕを主成分とす
る溶材でシールドガスとしてＡｒ，Ｈｅ等の不活性ガス
を、センターガスにＡｒガスを用いてプラズマ溶接し、
溶接部７を形成する。The drawings show examples of welds obtained by the welding method of the present invention. FIG. 1 (a) shows a state in which titanium clad steel 1 is joined. Base materials (mild steel) 2 and 2 are multi-layer welded by plasma welding to form a welded portion 5, and then a laminated material 3 is formed.
A Ti spacer material 6 of the same quality as the above is placed in the notch, and the joining materials 3 and 3 and the spacer material 6 are made of Ag-Cu as a main component, and an inert gas such as Ar or He is used as a shield gas. Plasma welding using Ar gas as the gas,
The weld 7 is formed.
【００１７】図１（ｂ）は、スペーサ材６と合わせ材
３，３とをＡｇ−Ｃｕを主成分とする溶材でＡｒ，Ｈｅ
等の不活性ガスを用いてＴＩＧ溶接し、溶接部７を形成
後、その上部に当て板材８で覆うと共にこれと合わせ材
３とを重ね隅肉溶接部９を形成して接合する継手であ
る。当て板材８は、合わせ材３に重ね隅肉溶接し隅肉溶
接部９を形成する。しかしこの継手はスペーサ材６の上
に当て板材８を溶接するために、図示のような継手端面
側には、母材（軟鋼）２とスペーサ材６との間に空隙部
１０が形成されるため、これをふさぐためにシール溶接
をする必要があるが、これは異材接合となるために本発
明ではＡｇ−Ｃｕを主成分とする溶材でシールドガスと
してＡｒ，Ｈｅ等の不活性ガスを、センターガスとして
Ｈｅを用いてプラズマ溶接し、異材シール溶接部１４を
形成する。さらにスペーサ材６と当て板材８との間に形
成される空隙部１０ａにはスペーサ材６と当て板材８と
同様のＴｉ溶材を用いてプラズマ溶接し、シール溶接部
１５を形成する方法を採用している。In FIG. 1B, the spacer material 6 and the mating materials 3 and 3 are made of Ag-Cu as a main component and are Ar and He.
After the TIG welding is performed using an inert gas such as, the welded portion 7 is formed, the upper portion of the welded portion is covered with the pad plate material 8 and the laminated material 3 is overlapped with the fillet welded portion 9 to form a joint. .. The patch plate material 8 is overlapped and fillet welded to the laminated material 3 to form a fillet weld portion 9. However, since the joint plate 8 is welded onto the spacer material 6 in this joint, a gap portion 10 is formed between the base material (mild steel) 2 and the spacer material 6 on the joint end face side as shown in the figure. Therefore, it is necessary to perform seal welding in order to block this, but since this is dissimilar material joining, in the present invention, an inert gas such as Ar or He is used as a shield gas with a melting material containing Ag-Cu as a main component. Plasma welding is performed using He as the center gas to form the dissimilar material seal weld portion 14. Further, the space 10a formed between the spacer material 6 and the patch plate material 8 is plasma welded using the same Ti melt as the spacer material 6 and the patch plate material 8 to form the seal welded portion 15. ing.
【００１８】図２（ａ）は、鋼製反応容器等で耐食性の
要求される場合に内張り用としてチタン１２を使用し、
このチタンと鋼材の異材接合状態を示したものである。
すなわち、図２（ｂ）の要部説明図に示すように、母材
２の内面に裏当て材としてのチタンの合わせ材３をＡｇ
−Ｃｕ−Ｌｉ−Ｓｎを主成分とする溶材で、シールドガ
スとしてＡｒ，Ｈｅ等の不活性ガス雰囲気で、センター
シールドガスとしてＨｅガスでプラズマ溶接法を用いて
隅肉溶接をし、チタン３と鋼材２との異材接合による隅
肉溶接部１１を形成し、そのチタン合わせ材３の上層部
に内張りのチタン１２を同質のＴｉ溶材を用いてプラズ
マ溶接で突合せ溶接を行って突合せ溶接部１３を形成す
る方法を示している。FIG. 2 (a) shows that titanium 12 is used as an inner lining when corrosion resistance is required in a steel reaction vessel or the like,
This figure shows the dissimilar material joining state of titanium and steel.
That is, as shown in the principal part explanatory view of FIG. 2B, a titanium backing material 3 as a backing material is attached to the inner surface of the base material 2 by Ag.
-Cu-Li-Sn as a main component, fillet welding was performed using a plasma welding method with an inert gas atmosphere such as Ar or He as a shield gas, and He gas as a center shield gas, and titanium 3 was formed. A fillet weld 11 is formed by joining dissimilar materials to the steel material 2, and titanium 12 which is lined in the upper layer portion of the titanium laminated material 3 is butt welded by plasma welding using a Ti melt of the same quality to form a butt welded portion 13. The method of forming is shown.
【００１９】図３（ａ）は、チタンクラッド鋼板をパイ
プに加工し、軟鋼配管２（ａ）と成形したチタンクラッ
ド鋼管１との突合せ接合した状態を示したもので、同図
（ｂ）に示すように、クラッド材の端部面４でチタン合
わせ材３と母材２とをＡｇ−Ｃｕ−Ｌｉを主成分とする
溶材でシールドガスとしてＡｒ，Ｈｅ等の不活性ガス
を、センターガスとしてＡｒガスを用いてプラズマ溶接
で異材溶接部１１を形成した後、母材（軟鋼）２をプラ
ズマ溶接で多層溶接し溶接部５を形成する方法を示して
いる。FIG. 3 (a) shows a state in which a titanium clad steel plate is processed into a pipe and the mild steel pipe 2 (a) and the formed titanium clad steel pipe 1 are butt-joined to each other. As shown, the end face 4 of the clad material is composed of a titanium laminated material 3 and a base material 2 which are molten materials containing Ag-Cu-Li as a main component, and an inert gas such as Ar or He is used as a center gas. This shows a method of forming a dissimilar material welded portion 11 by plasma welding using Ar gas, and then forming a welded portion 5 by multi-layer welding of a base material (mild steel) 2 by plasma welding.
【００２０】図４は、チタンクラッド鋼板をパイプに加
工し、これを海洋における飛沫・干満部の防食法として
使用した際の鋼管杭との突合せ状況を示す。すなわち海
洋構造物脚柱１５に巻回する場合の本発明の使用例であ
り、これを海水スプラッシュゾーンに設置するクラッド
鋼板の接合に使用することにより、脚柱の波による浸食
を保護し、その長寿命化に役立つことができる。図示の
ようにチタンクラッド鋼１を脚柱１５に接合する場合
に、構造部材１５とクラッド鋼母材２をＴＩＧ溶接で多
層隅肉溶接し溶接部５を形成した後、チタンの合わせ材
３と同質のＴｉスペーサ材６を切り欠き部に載置し、合
わせ材３とこのスペーサ材６を同質のＴｉ溶材でプラズ
マ溶接７後、これらの溶接部端面を母材２と、合わせ材
およびスペーサ材に亘って、Ａｇ−Ｃｕ−Ｓｎを主成分
とする溶材でシールドガスとしてＡｒ，Ｈｅ等の不活性
ガスを、センターガスとしてＡｒガスを用いてプラズマ
溶接をして異材シール溶接部１４を形成する。この結
果、前記溶接部端面は、スペーサ材と母材間に間隙が構
成されていてもこれを完全にシールし、溶接部に上記間
隙からの海水浸入による脆化や腐食を防止できる。FIG. 4 shows a state of abutment with a steel pipe pile when a titanium clad steel plate is processed into a pipe and is used as an anticorrosion method for splashes and tidal parts in the ocean. That is, this is an example of use of the present invention when wound around a pedestal 15 of an offshore structure, and by using this for joining a clad steel plate installed in a seawater splash zone, erosion due to wave of the pedestal is protected, It can help prolong life. In the case of joining the titanium clad steel 1 to the pedestal 15 as shown in the figure, the structural member 15 and the clad steel base material 2 are subjected to multi-layer fillet welding by TIG welding to form the welded portion 5, and then the titanium composite material 3 is formed. A Ti spacer material 6 of the same quality is placed in the cutout portion, and after the plasma welding 7 of the bonding material 3 and this spacer material 6 with the Ti melt material of the same quality, the end surfaces of these welded parts are the base material 2, the bonding material and the spacer material. Over the entire length, the dissimilar material seal welded portion 14 is formed by plasma welding using an inert gas such as Ar and He as a shield gas and a Ar gas as a center gas with a molten material containing Ag-Cu-Sn as a main component. .. As a result, even if a gap is formed between the spacer material and the base material, the weld end surface can completely seal the gap and prevent brittleness and corrosion due to intrusion of seawater into the weld portion through the gap.
【００２１】このように本発明では溶材にＡｇ−Ｃｕを
主成分とする材料を使用するためＡｇを主成分とする溶
着成分が得られＦｅの溶込はあるものの少量でありＡｇ
リッチの溶着金属が得られる。また、本発明は溶融溶接
されるために蝋接に比較して接合強度が高く、現場での
溶接施工が可能である。As described above, in the present invention, since the material containing Ag-Cu as the main component is used as the welding material, a welding component containing Ag as the main component is obtained, and although Fe is penetrated, it is a small amount and Ag
A rich weld metal is obtained. Further, since the present invention is melt-welded, the joining strength is high as compared with brazing, and welding work can be performed on site.
【００２２】なお、本発明において、プラズマ溶接適用
部の一部あるいは全部にＴＩＧ溶接を適用することは可
能である。In the present invention, it is possible to apply TIG welding to part or all of the plasma welding application part.
【００２３】[0023]
【発明の効果】以上のように、本発明法によれば、チタ
ンと鋼材との異材接合あるいはチタンクラッド鋼同志を
接合するにおいてネックとされていた溶接部の脆化や耐
食性の低下がない溶着金属が、従来と同様なアーク溶接
で簡単に得られその工業的な効果は極めて大きい。As described above, according to the method of the present invention, welding without causing brittleness or deterioration of corrosion resistance of a welded portion which has been a neck in joining dissimilar materials between titanium and steel or joining titanium clad steels together. Metal can be easily obtained by arc welding similar to the conventional one, and its industrial effect is extremely large.
【図１】（ａ），（ｂ）は本発明法によるチタンクラッ
ド鋼の溶接部を示す概略図ある。1A and 1B are schematic views showing a welded portion of titanium clad steel according to the method of the present invention.
【図２】（ａ）は、チタンと鋼材の溶接法を示す概略図
であり、同図（ｂ）は、同（ａ）図の一部拡大説明図で
ある。FIG. 2 (a) is a schematic view showing a welding method of titanium and a steel material, and FIG. 2 (b) is a partially enlarged explanatory view of the same (a).
【図３】（ａ）は、チタンクラッド鋼管と炭素鋼鋼管と
の溶接法を示す断面斜視図、同図（ｂ）は同（ａ）図の
一部拡大説明図である。3A is a sectional perspective view showing a welding method of a titanium clad steel pipe and a carbon steel pipe, and FIG. 3B is a partially enlarged explanatory view of the same FIG.
【図４】（ａ）は、炭素鋼構造物にチタンクラッド鋼管
を巻回し、鋼との異材溶接法を示す概略図、同図（ｂ）
は同（ａ）図の一部拡大説明図である。FIG. 4 (a) is a schematic view showing a method of welding a dissimilar material to steel by winding a titanium clad steel pipe around a carbon steel structure, and FIG. 4 (b).
FIG. 7 is a partially enlarged explanatory view of the same (a).
【図５】（ａ），（ｂ）は従来のチタンクラッド鋼の接
合法を示す断面図である。5A and 5B are cross-sectional views showing a conventional joining method of titanium clad steel.
１…クラッド鋼板 ２…母材 ２（ａ）…軟鋼配管 ３…合わせ材 ４…クラッド鋼１の両端部 ５…クラッド鋼板軟鋼部母材多層盛溶接部 ６…スペーサ材 ７，７′…スペーサ材溶接部 ８…当て板材 ９…重ね隅肉溶接部 １０…空隙 １１…隅肉溶接 １２…内ばりのチタン １３…突合せ溶接部 １４…異材シール溶接部 １５…シール溶接部 DESCRIPTION OF SYMBOLS 1 ... Clad steel plate 2 ... Base metal 2 (a) ... Mild steel piping 3 ... Laminated material 4 ... Both ends of clad steel 1 5 ... Clad steel plate Mild steel part base metal multi-layer welded part 6 ... Spacer material 7, 7 '... Spacer material Welded part 8 ... Patch plate material 9 ... Overlap fillet welded part 10 ... Void 11 ... Fillet welded 12 ... Inner beam titanium 13 ... Butt welded part 14 ... Dissimilar material seal welded part 15 ... Sealed welded part
───────────────────────────────────────────────────── フロントページの続き (72)発明者 添田 精一 東京都千代田区大手町２−６−３ 新日本 製鐵株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Seiichi Soeda 2-6-3 Otemachi, Chiyoda-ku, Tokyo Shin Nippon Steel Corporation
Claims (4)
同志を接合するに際し、Ａｇ−Ｃｕを主成分とする溶材
を用い、プラズマ溶接法で溶接することを特徴とする異
材接合方法。1. A method for joining dissimilar materials, characterized in that, when joining titanium and steel or titanium-clad steel to each other, a welding material containing Ag-Cu as a main component is used and welding is performed by a plasma welding method.
らなる溶材を用いてプラズマ溶接することを特徴とする
請求項１記載の異材接合方法。2. The dissimilar material joining method according to claim 1, wherein plasma welding is performed by using a molten material composed of Ag—Cu—Li and unavoidable impurities.
らなる溶材を用いてプラズマ溶接することを特徴とする
請求項１記載の異材接合方法。3. The method for joining dissimilar materials according to claim 1, wherein plasma welding is performed using a molten material composed of Ag—Cu—Sn and unavoidable impurities.
純物からなる溶材を用いてプラズマ溶接することを特徴
とする請求項１記載の異材接合方法。4. The method for joining dissimilar materials according to claim 1, wherein the plasma welding is performed using a molten material composed of Ag—Cu—Li—Sn and inevitable impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32314491A JP2613709B2 (en) | 1991-12-06 | 1991-12-06 | Dissimilar material joining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32314491A JP2613709B2 (en) | 1991-12-06 | 1991-12-06 | Dissimilar material joining method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05245648A true JPH05245648A (en) | 1993-09-24 |
| JP2613709B2 JP2613709B2 (en) | 1997-05-28 |
Family
ID=18151578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32314491A Expired - Fee Related JP2613709B2 (en) | 1991-12-06 | 1991-12-06 | Dissimilar material joining method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2613709B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744502A (en) * | 2012-07-11 | 2012-10-24 | 山东大学 | Wire filling tungsten electrode argon-arc welding process for TA15 titanium alloy and austenitic stainless steel |
-
1991
- 1991-12-06 JP JP32314491A patent/JP2613709B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744502A (en) * | 2012-07-11 | 2012-10-24 | 山东大学 | Wire filling tungsten electrode argon-arc welding process for TA15 titanium alloy and austenitic stainless steel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2613709B2 (en) | 1997-05-28 |
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