JPH0671669B2 - Joining method for titanium clad steel - Google Patents
Joining method for titanium clad steelInfo
- Publication number
- JPH0671669B2 JPH0671669B2 JP3259490A JP3259490A JPH0671669B2 JP H0671669 B2 JPH0671669 B2 JP H0671669B2 JP 3259490 A JP3259490 A JP 3259490A JP 3259490 A JP3259490 A JP 3259490A JP H0671669 B2 JPH0671669 B2 JP H0671669B2
- Authority
- JP
- Japan
- Prior art keywords
- joining
- welded
- clad steel
- titanium
- base material
- 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.)
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- Butt Welding And Welding Of Specific Article (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はチタンクラッド鋼の接合方法に関し、特に海洋
構造物における脚柱のスプラッシュゾーン等の被覆する
チタンクラッド鋼の接合方法に係るものである。Description: TECHNICAL FIELD The present invention relates to a method for joining titanium clad steel, and more particularly to a method for joining titanium clad steel covering a splash zone of a pedestal in an offshore structure. .
（従来の技術） チタンは、耐食性にすぐれているため、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ゝある
が、高価であることが実用上の制約となっている。これ
を解決する方法として、母材を鋼とし、表面をチタンと
したチタンクラッド鋼が近時使用されつゝあり、海洋構
造物における脚柱もその一例である。(Prior Art) Titanium is used in chemical plants and aircraft parts because of its excellent corrosion resistance, and its application is expanding, but its high cost is a practical limitation. As a method of solving this, titanium clad steel whose base material is steel and whose surface is titanium has been used recently, and a pillar in an offshore structure is one example.
海洋構造物の脚柱は、通常鋼管が用いられ、その表面に
は、海水腐食を防止するために塗装等の防食処理をして
いるが、海面のスプラッシュゾーンでは表面防食処理だ
けでは永年の海水スプラッシュに耐えられず、腐食が進
行する。そのために、スプラッシュゾーンには実開昭62
-44948号公報記載のごとく高耐食性のチタンクラッド鋼
を巻回被覆してその防止を計っている。Steel pipes are usually used for the pillars of offshore structures, and the surface is subjected to anticorrosion treatment such as painting to prevent seawater corrosion. Unable to withstand splashing, corrosion progresses. For that reason, in the splash zone, the actual exploitation 62
As described in Japanese Patent Publication No.-44948, high corrosion-resistant titanium clad steel is wound and coated to prevent it.
従来、脚柱へのチタンクラッド鋼の回巻取付けは、チタ
ンクラッド鋼の端部を溶接し、固定することによって行
われているが、チタンと鋼との溶接接合は困難であり、
そのために種々の工夫がなされている。例えば第５図
（ａ），（ｂ）はFeを主体とする母材2,2′の上面に商
用Ti合せ材3,3′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、第５図（ａ）はクラッド鋼１の端
縁4,4′の合せ材3,3′を切欠き、クラッド鋼１の両端部
4,4′を溶接７してから、合せ材3,3′と同質のTi被覆材
６を、切欠き部に載置し、合せ材3,3′と、この被覆材
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4,4′表面と、被覆材６との
間には、空隙10ができ、これに海水が浸入して母材の腐
食が進行する。一方合せ材3,3′と、被覆材６の溶接に
際し、母材の１部が溶融し、これが溶接部７の溶着金属
中に混入してTiC,TiN等の化合物やFe-Ti金属間化合物の
脆弱相を生成せしめ、これが原因となって割れが起るこ
とがある。Conventionally, the winding attachment of titanium clad steel to the pedestal is performed by welding and fixing the ends of the titanium clad steel, but welding joining of titanium and steel is difficult,
Therefore, various measures have been taken. For example, FIGS. 5 (a) and 5 (b) show the joining method of the titanium clad steel 1 in which the commercial Ti composite material 3,3 'is joined to the upper surface of the base material 2,2' mainly composed of Fe. FIG. 5 (a) shows the ends 4 and 4'of the clad steel 1 by cutting out the joining materials 3 and 3 '
After welding 4 and 4 ', the Ti coating material 6 of the same quality as the bonding material 3 and 3'is placed in the notch, and the welding material 3 and 3'and this coating material 6 are welded 7 The joint portion. However, in this joint portion, a gap 10 is formed between the surface of the base material edges 4 and 4'and the covering material 6, and seawater penetrates into this to promote corrosion of the base material. On the other hand, when welding the mating materials 3 and 3'and the covering material 6, a part of the base material is melted, and this is mixed into the weld metal of the welded portion 7 to mix with compounds such as TiC and TiN and Fe-Ti intermetallic compounds. This causes the fragile phase of the, and this may cause cracking.
このような溶接脆弱相の形成を防ぐため、第４図（ｂ）
に示すように被覆材６は、合せ材3,3′と溶接せず、た
ゞ合せ材3,3′間を被覆載置するに止め、その上部に押
え材８で覆うと共にこれと合せ材３および３′とを溶接
接合９する継手がある。すなわち、押え材８は、合せ材
3,3′、被覆材７と同様チタンで構成されており、従っ
て、溶接部９における前記脆化相の問題は起きない。し
かしこの継手は合せ材上に押え板を溶接しているため、
この部分だけが突出しており外観が悪いと共に溶接距離
が長く中間部にふくれ等の変形が起る。また前記（ａ）
図に示した継手と同様、母材や被覆材、さらには、押え
材にふくれが起きれば一層のことこれらの間に空隙がで
き、海水等の浸入を防ぐことができない。In order to prevent the formation of such a welding fragile phase, FIG. 4 (b)
As shown in Fig. 5, the covering material 6 is not welded to the joining materials 3 and 3 ', and the covering material 3 and 3'is not covered by the covering material, and the upper portion thereof is covered with the holding material 8 and the joining material. There is a joint that welds 9 together 3 and 3 '. That is, the pressing material 8 is a laminated material.
Like the coating materials 7, 3, 3 ', it is made of titanium, so that the problem of the embrittlement phase in the weld 9 does not occur. However, since this joint welds the holding plate on the laminated material,
Only this part is protruding and the appearance is poor and the welding distance is long and deformation such as swelling occurs in the middle part. In addition, (a)
Similar to the joint shown in the figure, if the base material, the covering material, and the pressing material further swell, a void is created between them, and it is not possible to prevent the intrusion of seawater or the like.
（発明が解決すべき課題） このように従来のチタンクラッド鋼の接合継手部は、Fe
を主成分とする鋼材とチタン材との溶接困難という本来
的な問題点の解決がなされておらず、特に海水中の構造
物に対する腐食防止をはかることは困難であった。(Problems to be solved by the invention) As described above, the joint joint of the conventional titanium clad steel is
The original problem of difficulty in welding steel and titanium materials, whose main component is, has not been solved, and it has been difficult to prevent corrosion, especially for structures in seawater.
本発明は、このような従来のチタンクラッド鋼の継手部
・接合構造を改善するものであって、例えば特に海洋構
造物の脚柱におけるスプラッシュゾーンに巻回使用する
に際し、外観上問題のない構造にすると共に海水等の浸
入を防ぎ、耐食性のすぐれたチタンクラッド鋼の接合方
法を提供することを目的とする。The present invention is intended to improve such a conventional joint / joint structure of titanium clad steel, and for example, a structure having no problem in appearance particularly when wound around a splash zone in a stanchion of an offshore structure. It is also an object of the present invention to provide a joining method for titanium clad steel which is excellent in corrosion resistance by preventing intrusion of seawater and the like.
（課題を解決するための手段） 本発明は上記目的を達成するため、 （１）Feを主成分とする母材と、Tiを合せ材としてなる
チタンクラッド鋼同志を接合するに際して、それぞれの
クラッド鋼端面に開先を設けて母材同志を突合せ溶接
し、これによって形成した母材溶着金属の表面と合せ材
端面との接合コーナー部分に溶着Coビードを形成せし
め、あるは耐熱性、断熱耐火性（セラミックス）を塗布
せしめ、前記母材溶着金属表面に載置し、これを閉塞す
るTi被覆材を前記合せ材とCo溶加材を溶いて溶接するこ
とを特徴とするチタンクラッド鋼の接合方法、 （２）Feを主成分とする母材と、Tiを合せ材としてなる
チタンクラッド鋼同志を接合するに際して、それぞれの
クラッド鋼の端縁部にTi合せ材がない母材露出部を設
け、この露出部を突合せ溶接して接合すると共に該露出
部表面と合せ材との接合コーナー部に溶着Coビードを形
成せしめ、あるいは高温耐熱性、断熱性の耐火物を塗布
せしめ、前記接合露出部に載置し、これを閉塞するTi被
覆材を、前記合せ材とCoよりなる溶加材を用いて溶接す
ることを特徴とするチタンクラッド鋼の接合方法、およ
び （３）前記（１）又は（２）記載の接合方法により接合
したTi被覆材の両端側の母材側端面において、Ti被覆材
との接面側近傍に、少くともTi被覆材の長さに亘ってCo
バンドを溶着し、さらに該バンド上からTi被覆材の側端
面の少くとも１部までを溶着Tiで被覆接合したことを特
徴とするチタンクラッド鋼の接合方法を要旨とする。(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides: (1) When a base material containing Fe as a main component and titanium clad steels containing Ti as a joining material are joined together, A groove is provided on the steel end face, and the base metals are butt-welded together, and a weld Co bead is formed at the joint corner between the surface of the base metal weld metal formed by this and the end face of the weld metal. Of titanium clad steel, which is characterized by applying a property (ceramics), placing it on the surface of the base metal welded metal, and welding the Ti coating material that closes the base material and the Co filler material by melting it. Method, (2) When joining a base material containing Fe as a main component and titanium clad steel made of Ti as a composite material, an exposed base material without Ti composite material is provided at the edge of each clad steel. Butt melt this exposed part Form a welded Co bead at the joint corner between the surface of the exposed part and the mating material while contacting and joining, or apply a refractory material having high temperature heat resistance and heat insulation, and place it on the exposed part of the joint. A joining method for titanium clad steel, characterized in that a Ti covering material to be closed is welded using a filler material made of Co and Co, and (3) The joining method according to (1) or (2) above. At the base metal side end faces on both ends of the Ti covering material joined by the method, near the contact surface side with the Ti covering material, at least for the length of the Ti covering material, Co
A gist of a joining method of titanium clad steel is characterized in that a band is welded, and at least a part of a side end surface of a Ti coating material is covered and joined with welded Ti on the band.
以下本発明を詳細に説明する。The present invention will be described in detail below.
チタンクラッド鋼は化学プラントや海洋構造物などの部
品として、腐食性環境に使用される。すなわち、チタン
は耐食性があるが、高価であり、従って腐食雰囲気に露
出しておれば、その反面は、高価なチタンは必要ないか
らである。重ね合せる鋼は強度部材としての役割を果た
し、チタンと比較して安価である。通常鋼は母材として
使用され、構造部材として目的の強度を保持するため
に、低炭素鋼、高張力鋼、あるいはステンレス鋼などが
用いられる。本発明のチタンクラッド鋼の母材がFeを主
成分と表現したのは、この意味をもつものであり、また
チタンは、通常商用される純チタンであって、JISに規
定される１種〜３種の何れでもよい。Titanium clad steel is used in corrosive environments as parts for chemical plants and offshore structures. That is, titanium has corrosion resistance, but is expensive, and if exposed to a corrosive atmosphere, on the other hand, expensive titanium is not necessary. Overlapping steel acts as a strength member and is less expensive than titanium. Usually, steel is used as a base material, and low carbon steel, high tensile steel, stainless steel, or the like is used as a structural member in order to maintain desired strength. It is this meaning that the base material of the titanium clad steel of the present invention expresses Fe as a main component, and titanium is usually commercially pure titanium, which is one of the types defined in JIS. Any of the three may be used.
第１図（ａ）〜（ｆ）は、本発明の接合方法による継手
部の実施例を示すものであり、便宜上２枚のチタンクラ
ッド鋼を用いた例で説明する。すなわち、Feを主成分と
する鋼よりなる母材2,2′とTiよりなる合せ材3,3′で構
成するチタンクラッド鋼1,1′は、第４図の従来法と同
様、その端部4,4′に合せ材3,3′のない母材露出部（合
せ材切欠き部）11,11′を設けてあり、母材2,2′はこの
端部4,4′を通常の方法で溶接接合５する。本発明は、
第１図（ａ）に示すように、両端部4,4′を接合した
後、あるいは、接合前において、母材端部4,4′面と、
合せ材3,3′の接合コーナー部12,12′にCoビード13,1
3′を溶着させることに一つの特徴がある。このCoビー
ド13,13′は、下記するようにTi被覆材との開先に、母
材露出面がなくするための幅が必要であり、しかも薄
く、均一な厚さで敷設されることが好ましい。そのため
にはTIG溶接で溶け込みの浅いビードを形成する方法
が、Fe-Co-Tiと溶融溶接されるために強度もあり、好ま
しいが、これに限定するものではなく、Co蝋接によって
もよい。尚ここで溶け込みを浅くする意味は、Fe-Co合
金をCoリッチにするためであり、逆にFeリッチとなると
後のTiの溶接の際に脆弱相を生成してしまうからであ
る、従って、ここでの合金組成は、Fe40以下、Co60以上
が好ましい。またビード幅としては後のTIG溶接で、Ti
とFeが混合しない幅であれば良い。FIGS. 1 (a) to 1 (f) show an embodiment of a joint portion according to the joining method of the present invention, and an example using two titanium clad steels will be described for convenience. That is, the titanium clad steel 1,1 'composed of the base material 2,2' made of steel containing Fe as the main component and the composite material 3,3 'made of Ti is similar to the conventional method shown in FIG. Part 4, 4'is provided with base material exposed part (bond material notch) 11, 11 'without mating material 3, 3', and base material 2, 2'is usually this end part 4, 4 ' Welding and joining 5 by the method of. The present invention is
As shown in FIG. 1 (a), after joining both end portions 4, 4'or before joining, the base material end portion 4, 4'face and
Co beads 13,1 at the joint corners 12,12 'of the laminated material 3,3'
There is one feature in welding 3 '. This Co bead 13, 13 ′ needs to have a width to eliminate the exposed surface of the base metal in the groove with the Ti coating material as described below, and it can be laid with a thin and uniform thickness. preferable. For that purpose, a method of forming a bead with a shallow penetration by TIG welding is preferable because it has strength because it is melt-welded with Fe-Co-Ti, but it is not limited to this, and Co brazing may be used. Incidentally, the meaning of making the penetration shallow here is to make the Fe-Co alloy rich in Co, and on the contrary, if it becomes Fe rich, a fragile phase is generated during the subsequent welding of Ti, therefore, The alloy composition here is preferably Fe40 or less and Co60 or more. As for the bead width, in the later TIG welding, Ti
The width should not be mixed with Fe.
次に第１図（ｂ）に示すように、本発明継手部には、切
欠き部11に被覆材６を挿入載置する。被覆材６は、合せ
材3,3′と同質のチタン材であり、合せ材3,3′と、被覆
材６とで長さ方向に開先14,14′が構成されるよう、切
欠き部11の幅より些かに小幅にしている。被覆材６が定
位置に載置されたとき、コーナー部12の溶着Coビード1
3,13′は、前記開先14,14′の底部を塞ぐようになって
いる。その後、（ｃ）図に示すように、Co金属の溶加材
を用いて、合せ材３および３′と被覆材６とを溶接接合
する。この溶接方法は、通常の溶接方法でよいが、溶接
部の酸化あるいは窒化を防ぐことからTIG溶接法の採用
が好ましい。（ｃ）図において15,15′はCo金属溶接部
を示す。この溶接に際し、前記したように、開先14,1
4′底部には、溶着したCoビード13,13′が敷設している
ため、この開先部分は母材と遮断されており合せ材と被
覆材をCo溶接しても、母材が溶けて溶接部15,15′に溶
込むことがない。従って、本発明の溶接部15,15′は、
母材成分に基づく脆化物を生成することがないので、こ
れに起因する欠陥を防止することができる。Next, as shown in FIG. 1 (b), the covering member 6 is inserted and placed in the notch 11 in the joint portion of the present invention. The covering material 6 is a titanium material having the same quality as that of the facing materials 3 and 3 ', and the notches are formed so that the facing materials 3 and 3'and the covering material 6 form the grooves 14 and 14' in the longitudinal direction. It is slightly narrower than the width of part 11. When the coating material 6 is placed in a fixed position, the welded Co bead 1 at the corner 12
3,13 'closes the bottom of the groove 14,14'. After that, as shown in FIG. 3C, the joining materials 3 and 3 ′ and the covering material 6 are welded to each other by using a filler metal of Co metal. This welding method may be an ordinary welding method, but it is preferable to use the TIG welding method because oxidation or nitridation of the welded portion is prevented. In the figure, (15) and 15 'indicate Co metal welds. During this welding, as described above, the groove 14,1
Since welded Co beads 13 and 13 'are laid on the bottom of the 4', the groove is cut off from the base metal, and even if Co welding is performed between the mating material and the coating material, the base material does not melt. It does not penetrate into the welded parts 15 and 15 '. Therefore, the welds 15 and 15 'of the present invention are
Since no embrittlement based on the base material component is generated, it is possible to prevent defects due to this.
尚本発明において前記したコーナー部12に高耐熱性およ
び断熱性のAl2O3等よりなる耐火材を塗布あるいは貼着
してもCoビードと同様の役割を果たすことができる。In the present invention, even if a refractory material such as Al 2 O 3 having high heat resistance and heat insulation property is applied or adhered to the corner portion 12 described above, the same function as the Co bead can be fulfilled.
上記本発明方法によっても、空隙10の形成を無くするこ
とはできない。しかし、本発明は、この空隙10を、第１
図（ｅ）に示すように無害化することにもう一つの特徴
を有する。すなわち同図（ｃ）のように被覆剤６を溶接
して構成したクラッド鋼１の母材側端面Ｓにおいて、
（ｄ）図に示すように、少くとも被覆材６の溶接部15,1
5′間に亘って、しかも被覆材６近辺の或る幅にCo金属
バンド16を溶着形成させ、更に（ｅ）図に示すように、
このCoバンド16の上部から、少くとも被覆材６の端面S2
の一部に亘り、Ti溶着金属17で被覆し、母材側端面と、
合せ材側端面とをCoバンド16を介して架橋接合して空隙
10を被覆する。第２図は、第１図（ｅ）のA-A線断面図
であり、母材端面S1の溶着Co15と、その表面から被覆材
６の端面S2にかけてTi溶着金属で架橋接合している状況
を示している。溶着CoバンドおよびTi架橋接合は、TIG
溶接法、あるいは蝋接法などで形成することができる。
このように、母材端面に下地材としてあらかじめCo金属
がバンド状に接合しているため、架橋接合するTiの溶着
材中には母材成分が直接溶け込むことがない。すなわ
ち、Ti溶着材には、母材成分の溶け込みに起因する脆化
相が生成せず、Coを介して母材と、被覆材および合せ材
と強固に固着すると共に、空隙10を塞いで、海水等の浸
入を完全に防ぐことができる。The formation of the void 10 cannot be eliminated by the method of the present invention. However, in the present invention, this void 10 is
Another feature is that it is rendered harmless as shown in FIG. That is, at the base material side end surface S of the clad steel 1 formed by welding the coating material 6 as shown in FIG.
(D) As shown in FIG.
A Co metal band 16 is formed by welding over 5 ′ and in a certain width near the coating material 6, and as shown in FIG.
From the top of this Co band 16, at least the end surface S 2 of the covering material 6
Over a part of, is coated with the Ti-deposited metal 17, the base material side end surface,
A void is formed by cross-linking the end surface of the mating material with Co band 16
Coat 10. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1 (e), showing a state in which the welding Co15 on the end surface S 1 of the base metal and the Ti welding metal from the surface to the end surface S 2 of the covering material 6 are cross-linked. Is shown. Welded Co band and Ti cross-linking joint are TIG
It can be formed by a welding method or a brazing method.
As described above, since the Co metal is bonded to the end surface of the base material as a base material in advance in a band shape, the base material component does not directly melt into the Ti welding material to be cross-linked. That is, in the Ti weld material, an embrittlement phase due to the penetration of the base material component is not generated, and the base material is firmly fixed to the covering material and the bonding material via Co, and the void 10 is closed, Intrusion of seawater etc. can be completely prevented.
第３図は本発明の別の例である。すなわち第１図の方法
はチタンクラッド鋼１の端部に合せ材のない露出部４を
設けているが、この露出部は必ずしも設ける必要がな
く、第３図に示すように、クラッド鋼端部に母材合せ材
からなる開先を構成し、まず母材2,2′の突合せ部を溶
接する。すなわち合せ材3,3′を残して母材のみを溶接
した後その溶着金属５の表面５′と合せ材の交叉部分に
Coビード13,13′を形成する方法であり、その後は第１
図（ｂ）以下の工程で被覆材６、架橋接合17を行うこと
により、第１図の方法と同様の効果を得ることができ
る。FIG. 3 is another example of the present invention. That is, in the method of FIG. 1, the exposed portion 4 without the joining material is provided at the end of the titanium clad steel 1. However, this exposed portion is not necessarily provided, and as shown in FIG. A groove made of a base material-bonding material is formed on the first base, and first, the abutting portions of the base materials 2 and 2'are welded. That is, after welding only the base metal while leaving the laminated material 3 and 3 ', the surface 5'of the deposited metal 5 and the crossed portion of the laminated material are welded together.
It is a method to form Co beads 13, 13 ', and then the first
By performing the covering material 6 and the cross-linking joint 17 in the steps shown in FIG. 2B and below, the same effect as that of the method shown in FIG. 1 can be obtained.
第４図は海洋構造物脚柱17に巻回した本発明チタンクラ
ッド鋼１の使用例であり、これを海水スプラッシュゾー
ンに設置することにより、凹凸がないため外観を疎外す
ることなく、しかも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。FIG. 4 is an example of using the titanium clad steel 1 of the present invention wound around a pedestal 17 of an offshore structure. By installing this titanium clad steel 1 in a seawater splash zone, there is no unevenness, so the appearance is not alienated and the legs are It can protect the erosion caused by the waves of the pillar and help prolong its life.
（発明の効果） 以上説明したように、本発明は、チタンクラッド鋼の接
合を、脆化相を生成させることなく十分な強さで可能と
し、その接合継手部の耐食性も十分保持することができ
る。また、構造物の一部として外観を疎外することな
く、使用できる。(Effects of the Invention) As described above, the present invention enables joining of titanium clad steel with sufficient strength without generating an embrittlement phase, and can sufficiently maintain the corrosion resistance of the joined joint portion. it can. Further, it can be used as a part of a structure without alienating the appearance.
第１（ａ），（ｂ），（ｃ），（ｄ）および（ｅ）本発
明接合方法の工程を示す図、第２図は第１図（ｅ）のA-
A線断面図、第３図は本発明によるチタンクラッド鋼の
一使用例、第４図は本発明の使用例を示す斜視図、第５
図（ａ），（ｂ）は従来のチタンクラッド鋼の接合例を
示す図である。 １……チタンクラッド鋼、2,2′……母材 3,3′……合せ材、4,4′……端部 ５……溶接、６……被覆材 ７……溶接部、８……押え材 ９……溶接部、10……空隙 11……合せ材切欠き部（母材露出部） 12……接合コーナー部、13……溶着Coビード 14……開先、15……溶接部 16……溶着Coバンド 17……Ti溶着金属（架橋接合） S1……母材側端面、S2……被覆材側端面FIGS. 1 (a), (b), (c), (d) and (e) are views showing steps of the joining method of the present invention, and FIG. 2 is A- in FIG. 1 (e).
A line sectional view, FIG. 3 is a usage example of the titanium clad steel according to the present invention, FIG. 4 is a perspective view showing a usage example of the present invention, FIG.
(A), (b) is a figure which shows the joining example of the conventional titanium clad steel. 1 ... Titanium clad steel, 2,2 '... Base metal 3,3' ... Laminated material, 4,4 '... Edge 5 ... Welding, 6 ... Covering material 7 ... Welded portion, 8 ... … Pressing material 9 …… Welding area, 10 …… Void area 11 …… Mating material Notch area (base material exposed area) 12 …… Joining corner area, 13 …… Welding Co bead 14 …… Bevel, 15 …… Welding Part 16: Welding Co band 17: Ti weld metal (cross-linking) S 1 …… Base material side end surface, S 2 …… Coating material side end surface
Claims (4)
てなるチタンクラッド鋼同志を接合するに際して、それ
ぞれのクラッド鋼端面に開先を設けて母材同志を突合せ
溶接し、これによって形成した母材溶着金属の表面と合
せ材端面との接合コーナー部分に溶着Coビードを形成せ
しめ、前記母材溶着金属表面に載置し、これを閉塞する
Ti被覆材を前記合せ材とCo溶加材を用いて溶接すること
を特徴とするチタンクラッド鋼の接合方法。1. When joining a base material containing Fe as a main component and titanium clad steels made of Ti as a composite material, a groove is provided at each clad steel end face and the base materials are butt-welded together. A welding Co bead is formed at the joining corner portion between the surface of the base material welded metal formed by the above and the end face of the mating material, and the Co bead is placed on the base material welded metal surface and closed.
A method for joining titanium clad steels, characterized in that a Ti covering material is welded by using the above-mentioned joining material and a Co filler material.
てなるチタンクラッド鋼同志を接合するに際して、それ
ぞれのクラッド鋼の端縁部にTi合せ材がない母材露出部
を設け、この露出部を突合せ溶接して接合すると共に該
露出部表面と合せ材との接合コーナー部に溶着Coビード
を形成せしめ、前記接合露出部に載置し、これを閉塞す
るTi被覆材を、前記合せ材とCoよりなる溶加材を用いて
溶接することを特徴とするチタンクラッド鋼の接合方
法。2. When joining a base material containing Fe as a main component and titanium clad steels made of Ti as a composite material, an exposed portion of the base material without the Ti composite material is provided at the edge of each clad steel. , The exposed portion is butt-welded and joined, and a weld Co bead is formed at the joining corner portion of the exposed portion surface and the mating material, placed on the joined exposed portion, and a Ti coating material for closing it is formed, A method for joining titanium clad steels, characterized in that the joining material and a filler material made of Co are welded together.
高温耐熱性および断熱性耐火物を塗布したことを特徴と
する請求項１あるいは２記載のチタンクラッド鋼の接合
方法。3. The method for joining titanium clad steel according to claim 1, wherein a high temperature heat resistant and heat insulating refractory material is applied to a joining corner portion between the exposed surface and the joining material.
接合方法により接合したTi被覆材の両端側の母材側端面
において、Ti被覆材との接面側近傍に、少なくともTi被
覆材の長さに渡ってCoバンドを溶着し、さらに該バンド
上からTi被覆材の側端面の少なくとも１部までを溶着Ti
で被覆接合したことを特徴とするチタンクラッド鋼の接
合方法。4. A Ti coating material, which is joined by the joining method according to any one of claims 1, 2 or 3, at least on the Ti coating material in the vicinity of the contact surface side with the Ti coating material on the end surfaces on the base material side on both end sides. The Co band is welded over the length of the material, and the Ti band is welded on at least a part of the side end surface of the Ti coating material.
A method for joining titanium-clad steel, which is characterized in that coating and joining are carried out with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3259490A JPH0671669B2 (en) | 1990-02-15 | 1990-02-15 | Joining method for titanium clad steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3259490A JPH0671669B2 (en) | 1990-02-15 | 1990-02-15 | Joining method for titanium clad steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03238175A JPH03238175A (en) | 1991-10-23 |
| JPH0671669B2 true JPH0671669B2 (en) | 1994-09-14 |
Family
ID=12363185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3259490A Expired - Fee Related JPH0671669B2 (en) | 1990-02-15 | 1990-02-15 | Joining method for titanium clad steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0671669B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050020419A (en) * | 2003-08-22 | 2005-03-04 | 주식회사 티에스엠텍 | The structure of seam and The method of welding line for chemistry fluid tank made of high quality |
| AU2005200826B1 (en) | 2005-02-24 | 2005-07-07 | W.E. Smith Engineering Pty Ltd | Method of joining clad metals and vessel produced thereby |
-
1990
- 1990-02-15 JP JP3259490A patent/JPH0671669B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03238175A (en) | 1991-10-23 |
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