JPH0252176A - Welding method for titanium clad steel - Google Patents
Welding method for titanium clad steelInfo
- Publication number
- JPH0252176A JPH0252176A JP20311888A JP20311888A JPH0252176A JP H0252176 A JPH0252176 A JP H0252176A JP 20311888 A JP20311888 A JP 20311888A JP 20311888 A JP20311888 A JP 20311888A JP H0252176 A JPH0252176 A JP H0252176A
- Authority
- JP
- Japan
- Prior art keywords
- titanium
- welding
- butt
- butt joint
- joint
- 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
- 239000010936 titanium Substances 0.000 title claims abstract description 71
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 64
- 238000003466 welding Methods 0.000 title claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 25
- 239000010959 steel Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 19
- 210000001503 joint Anatomy 0.000 claims abstract description 41
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 27
- 239000010962 carbon steel Substances 0.000 claims abstract description 26
- 239000011261 inert gas Substances 0.000 claims abstract description 8
- 229910001200 Ferrotitanium Inorganic materials 0.000 claims description 6
- 230000035515 penetration Effects 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229910000679 solder Inorganic materials 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 150000003608 titanium Chemical class 0.000 description 4
- 238000005253 cladding Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000001273 butane Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000004021 metal welding Methods 0.000 description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- SYRIRLOOSKFSFC-UHFFFAOYSA-N butane Chemical class CCCC.CCCC SYRIRLOOSKFSFC-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
- Arc Welding In General (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野１
水′５を明はチタンクラッド鋼の溶接方法に係り、特に
チタンクラッド鋼を突合Ｕ溶接するに際して採用するチ
タンクラッド鋼の溶接方法に関するしのである。[Detailed Description of the Invention] [Industrial Application Field 1] This article relates to a welding method for titanium clad steel, and in particular to a welding method for titanium clad steel that is employed when butt U-welding titanium clad steel. be.
［従来の技術］
従来、チタンクラッド鋼を突合せ溶接するに際して、ク
ラツド材のチタン（Ｔｉ）と母材の炭素鋼とは直接に異
種金属溶融溶接ができないため、これらチタンと炭素鋼
とを別個に溶接しなければならず、例えば第５図に示づ
ような突合Ｕ継手が採用されていた。[Prior Art] Conventionally, when butt welding titanium clad steel, the cladding material titanium (Ti) and the base material carbon steel cannot be directly fused by dissimilar metal welding, so titanium and carbon steel are separately welded. For example, a butt U-joint as shown in FIG. 5 was used.
図示づるＪ：うに、チタンクラッド鋼１のチタン２側を
表面、炭素鋼３側を裏面とづると、突合せ継手４の裏面
側にはＶ型聞先５が形成され、表面側には所定幅だけチ
タン２の層を取り除くように凹陥部６が形成されている
。この凹陥部６にはｆ−タン板７或は銀ろうが充填され
るようになっている。このチタン板７或（よ銀ろう上に
（よごれらを覆うように当板８が段重〕られるようにな
っており、この当板８の裏面に臨んでチタンクラッド鋼
１を厚さ方向に０通するチルテールホール９が設けられ
ている。As shown in the figure, if the titanium 2 side of the titanium clad steel 1 is the front side and the carbon steel 3 side is the back side, a V-shaped tip 5 is formed on the back side of the butt joint 4, and a predetermined width is formed on the front side. A recessed portion 6 is formed so as to remove only the layer of titanium 2. This concave portion 6 is filled with an f-tan plate 7 or silver solder. This titanium plate 7 (a backing plate 8 is stacked on top of the silver solder to cover the dirt), and the titanium clad steel 1 is placed on the back side of the backing plate 8 in the thickness direction. A tilt tail hole 9 for passing 0 is provided.
このにうに形成した突合せ継ｆ＝４を第６図に示すよう
に■〜Ｏの順に溶接していた。図示するように、■まず
裏面側の炭素鋼３のＶ型間先５を溶接し、０次にト記凹
陥部６側から裏はつりして、裏溶接を行う。The butt joint f=4 formed in this way was welded in the order of ■ to O as shown in FIG. As shown in the figure, first, the V-shaped tip 5 of the carbon steel 3 on the back side is welded, and then the back side is hung from the recessed part 6 side and back welding is performed.
そして、この裏溝接部を仕］−げた後、Ｏ凹陥部６内に
チタン板７を挿入して銀ろうによりろう付するか、或は
限ろう肉盛を行う。■このチタン板７或は銀ろう上を当
板８で覆い、この当板８をクラツド材に隅肉溶接１０し
た後、上記チルテールホール９から気体を封入して、上
記隅肉溶接１０の気密試験を行っていた。After finishing this back groove contact portion, a titanium plate 7 is inserted into the O-recessed portion 6 and brazed with silver solder, or solder is applied. ■ After covering this titanium plate 7 or silver solder with a backing plate 8 and performing fillet welding 10 on this backing plate 8 to the cladding material, gas is sealed through the chill tail hole 9 to perform the fillet welding 10. An air tightness test was being conducted.
［発明が解決しようとする課題］
ところで、従来のチタンクラッド鋼の溶接方法にあって
は次のような課題があった。[Problems to be Solved by the Invention] By the way, the conventional titanium clad steel welding method has the following problems.
上記当板８をチタンクラッド鋼１に隅肉溶接１０により
取り付けているため、ｐＡ膨張等により生ずる疲労に対
する強度が隅肉溶接１０は低く、υ１れ等が発生して漏
洩の原因となるという問題があった。Since the above-mentioned backing plate 8 is attached to the titanium clad steel 1 by fillet welding 10, the fillet welding 10 has low strength against fatigue caused by pA expansion, etc., and there is a problem that υ1 cracking etc. may occur and cause leakage. was there.
また、ろう句法ではチタンと銀ろうとの間に非常にもろ
い金属間化合物ができるため、溶融溶接法を採用するが
、従来の方法ではチタン同志を突合せ溶接する方法はな
かった。Additionally, since the soldering method creates an extremely brittle intermetallic compound between the titanium and silver soldering, a fusion welding method is used, but conventional methods did not allow for butt welding titanium together.
上述の如き課題に鑑みて本発明は、チタンクラッド鋼の
チタン同志を突合せ溶接して疲労強度を向上させること
ができるチタンクラッド鋼の溶接方法を提供することを
目的とするものである。In view of the above-mentioned problems, an object of the present invention is to provide a method for welding titanium clad steel, which can improve fatigue strength by butt welding titanium clad steel together.
［課題を解決するための一′７：段１
上記目的を達成すべく本発明は、チタンクラッド鋼を突
合せ溶接するに際して、チタンクラッド鋼のチタンと炭
素鋼との境界部に凹陥部を形成し、この凹陥部に不活性
ガスを封入して上記チタンの突合せ継手を裏波溶接する
ようにしＩζｂのである。[To solve the problem 1'7: Stage 1 In order to achieve the above object, the present invention forms a recessed portion at the boundary between titanium and carbon steel of the titanium clad steel when butt welding the titanium clad steel. This recess is filled with an inert gas, and the titanium butt joint is welded using Uranami welding.
［作 用Ｊ
ブタンクラツド鋼のチタンと炭素鋼との境界部に凹陥部
を形成して突合せ継丁を形成したので、チタンと炭素鋼
を隔ｆｒｉｌｌ Ｌでチタンの突合は継手と炭素鋼の突
合せ継手とを形成することができる。[Function J Since a concave part is formed at the boundary between the titanium and carbon steel of the butane clad steel to form a butt joint, the titanium butt joint is separated by frill L between the titanium and carbon steel, and the butt joint of the titanium and carbon steel butt joints are formed. can be formed.
これらチタンの突合せ継手及び炭素鋼の突合せ縦継手溶
接接合り゛るが、特にブタンの突合Ｕ継手については上
記凹陥部に不活Ｖ１ガスを封入して２２波ＰＩｌ？を行
うものである。These titanium butt joints and carbon steel butt longitudinal joints are welded together, but especially for butane butt U joints, inert V1 gas is filled in the recessed part and 22 wave PIl is used. This is what we do.
［実施例］
以下に本発明のチタンクラッド鋼の溶接ｌｊ法を添付図
面に基づいて詳述する。[Example] The welding lj method for titanium clad steel of the present invention will be described in detail below based on the accompanying drawings.
まず、本発明方法の第１の実施例に採用する突合せ継手
を第１図、第２図に示す。図示するように、チタンクラ
ッド鋼１のチタン２側の表面、炭素鋼３側を裏面とする
と、突合せ継手１０の表裏面側には夫々Ｖ型開先５が形
成されている。また、チタン２と炭素鋼３との境ｖＪ部
には凹陥部１１が形成されている。この凹陥部１１は炭
素ｔ１４３Ｍに形成されてＪ７す、断面矩形に形成され
ている。この凹陥Ｎ５１１により、チタン２と炭素ｒ！
Ａ３とが隔離され、チタンの突合せ継手１２と炭素鋼の
突合せ継ｆ１３とが別個に形成されている。この凹陥部
１１を機械加工する際、クラツド材側に０．５＃ＩＩｌ
＋以上追込み切削−４る。これは爆竹による境界部に生
成づる爆着の波の高さが約０．２履だからである。First, a butt joint employed in a first embodiment of the method of the present invention is shown in FIGS. 1 and 2. As shown in the figure, assuming that the titanium 2 side surface of the titanium clad steel 1 and the carbon steel 3 side are the back surface, V-shaped grooves 5 are formed on the front and back sides of the butt joint 10, respectively. Further, a concave portion 11 is formed at the boundary vJ between the titanium 2 and the carbon steel 3. This concave portion 11 is formed of carbon t143M and has a rectangular cross section. Due to this depression N511, titanium 2 and carbon r!
A3 is isolated, and a titanium butt joint 12 and a carbon steel butt joint f13 are formed separately. When machining this concave portion 11, 0.5#IIl is applied to the cladding material side.
Deep cutting of +4 or more. This is because the height of the explosive waves generated at the boundary by firecrackers is approximately 0.2 feet.
更に、この凹陥／！ｌ１１１にはチタンクラッド鋼１の
裏面側から厚さ方向にチルテールホール９が蔓通されて
いる。Furthermore, this depression/! A tilt tail hole 9 extends through the titanium clad steel 1 in the thickness direction from the back side of the titanium clad steel 1.
以上のような溶接継手を採用して実施りる本発明方法を
具体的に説明する。The method of the present invention employing the above-described welded joint will be explained in detail.
まず、上述のように形成された突合せ継手１０を組み立
てる。すると、チタン２と炭素鋼３との間に形成された
凹陥部１１を隔てて、チタンの突合せ継手１２と炭素鋼
の突合せ継手１３とが組み立てられる。これらチタンの
突合は継手１２及び炭素鋼の突合Ｕ継手１３には夫々Ｖ
望聞先５が形成されている。そして、表面側の炭素鋼の
突合Ｕ継手１３から溶接を行う。この溶接は裏波溶接■
により行う。次に、表面側のチタンの突合ｌ！継丁１２
の溶接を行うが、これに際して」−記デルチルホール９
からアルゴンガス（Ａｒ）等の不活性ガスを封入する。First, the butt joint 10 formed as described above is assembled. Then, the titanium butt joint 12 and the carbon steel butt joint 13 are assembled with the recess 11 formed between the titanium 2 and the carbon steel 3 separated therebetween. These titanium butt joints 12 and carbon steel butt U joints 13 each have a V
A destination 5 is formed. Then, welding is performed from the carbon steel butt U joint 13 on the surface side. This welding is Uranami welding■
This is done by Next, butt the titanium on the surface side l! Joint 12
We will be welding the
An inert gas such as argon gas (Ar) is then filled.
これによりチタンの突合せ継１１２はバックシールされ
、酸化させることなくＸ波溶接■ザることができる。こ
のチタンの突合Ｖ：継手１２の溶接には、ブータン２の
厚さが約２１程度であるため、入熱量の少ないＴＩＧ溶
接法を使用するのが望ましい。This backseals the titanium butt joint 112 and allows it to be X-wave welded without oxidation. For welding this titanium butt V:joint 12, since the thickness of the titanium 2 is approximately 21 mm, it is desirable to use TIG welding, which requires a small amount of heat input.
次に、本発明１ノ法の第２の実施例に採用する突合せ継
手を第３図、第４図に示す。Next, a butt joint employed in the second embodiment of the first method of the present invention is shown in FIGS. 3 and 4.
図示するように、第２の実施例にあっては、第１の実施
例にお【Ｊる凹陥部１１内にこれと同形状の裏当金１４
が挿入されるようになっている。この裏当金１４は炭素
鋼３のフラッｉ−バーにて形成され、上記チタンの突合
せ継手１２と当接する位首にはこの継手１２に沿って高
面半円状の切欠部１巳）が形成されている。As shown in the figure, in the second embodiment, a backing metal 14 having the same shape as that in the first embodiment is provided in the concave portion 11.
is now inserted. This backing metal 14 is formed of a flat bar made of carbon steel 3, and has a semicircular notch 12) along the upper surface of the titanium butt joint 12 at its neck where it comes into contact with the titanium butt joint 12. It is formed.
第２の実施例は、まず、チタンクラッド鋼１の突合せ縦
継手（３を組み立てるに際して、上記裏当金１４を突合
せ継手１６の一方の凹陥部１１に挿入しておく。このと
き裏当金１４のり欠品１５は表面側に臨まＵるようにす
る。そして、一方の継手−から突き出された裏当金１４
を他方の凹陥部１１内に挿入して、裏当金１４を凹陥部
１１内に収容する。このように裏当金１４を凹陥部１１
内に収容して突合は継手１６を組み立てると、上記実当
金１４を隔ててチタンの突合せ継手１２と炭素鋼の突合
せ継手１３とが組み立てられた状態となる。そして、第
２図に示す如く裏面側の炭素鋼の突合せ継手１３を溶接
する。この溶接は、上記実当金１４を利用して裏当金溶
接◎により行う。In the second embodiment, first, when assembling the butt vertical joint (3) of titanium clad steel 1, the backing metal 14 is inserted into one of the concave portions 11 of the butt joint 16. The missing piece of glue 15 should face the front side.Then, the backing metal 14 protruding from one joint.
is inserted into the other concave part 11, and the backing metal 14 is housed in the concave part 11. In this way, attach the backing metal 14 to the recessed part 11.
When the butt joint 16 is assembled by housing the titanium butt joint 12 and the carbon steel butt joint 13 with the real abutment 14 in between, the titanium butt joint 12 and the carbon steel butt joint 13 are assembled. Then, as shown in FIG. 2, the carbon steel butt joint 13 on the back side is welded. This welding is performed by backing metal welding ◎ using the real metal 14 mentioned above.
次に、表面側のチタンの突合せ継手１２の溶接を行うが
、これに際して上記チル７−−ルボール９からへｒガス
等の不活性ガスを封入する。不活性ガスは、裏当金１４
と凹陥部１１を区画するチタンクラッド鋼との間に形成
された間隙を通過して上記切欠部１５内に流入づる。Next, the titanium butt joint 12 on the front side is welded, and at this time an inert gas such as r gas is filled from the chill ball 9. Inert gas is backing money 14
and the titanium clad steel defining the concave portion 11, and flows into the notch portion 15.
これによりチタンの突合せ継手１２はバックシールされ
ることになる。ぞして、チタンの突合ゼ継丁１２を溶接
する。このチタンの突合ぜ継手１２の裏側に切欠部１５
が形成されているため、イの溶１１ Ｇ、１１３波溶接
■により行うことかぐさ、疲労強度が向上す゛る。この
ブタンの突合せ′継丁１２の溶接には、チタン２の厚さ
が約２Ｍ程度であるため、第１の実施例と同様に入熱Ｇ
の少ない丁ｒＧ溶接法を使用するのが望ましい。This causes the titanium butt joint 12 to be backsealed. Then, the titanium butt joint 12 is welded. A notch 15 is formed on the back side of this titanium butt joint 12.
11G, 113 wave welding (2) improves the strength and fatigue strength. In welding this butane butane joint 12, since the thickness of the titanium 2 is about 2M, the heat input G
It is desirable to use the RG welding method, which has a small amount of welding.
このように本発明方法によれば、チタン２同志を突合せ
溶接することができ、従来の隅肉溶接に比べて熱膨張等
により生ずる疲労に対する強度が汎しく向上する６ので
ある。As described above, according to the method of the present invention, it is possible to butt weld two pieces of titanium together, and the strength against fatigue caused by thermal expansion etc. is generally improved compared to conventional fillet welding6.
尚、溶接完了後上記バックシール川の不活性ガスを利用
して、戊はコンプレッサ等から−ｊルデールホール９に
空気を封入して溶接部の気密試験を行うものである。After the welding is completed, air is sealed in the -j Rudale hole 9 from a compressor or the like using the inert gas from the back seal river to perform an airtightness test on the welded portion.
［ｆｌ明の効果］
以上凹するに本発明によれば、チタン同志を突合せ溶接
することができるので、熱膨張等にＪ、り生ずる疲労に
対する強度を向上させることがて゛きる。[Effect of Brightness] To summarize, according to the present invention, titanium pieces can be butt welded together, so it is possible to improve the strength against fatigue caused by thermal expansion and the like.
第１図Ｇ、Ｌ本発明り法の第１の実施例に採用する溶１
８継手を示す側面図、第２図は本発明方法の第１の実施
例の溶接接合状態を示す側面図、第３図は本発明方法の
第２の実施例に採用される溶接継手を承り側面図、第４
図は本発明方法の第２の実施例の溶接接合状態を示す側
面図、第５図は従来の方法に採用していた溶接継手を示
１Ｊ側面図、第６図は従来の方法による溶接接合状態を
示す側面図である。
図中、１はチタンクラッド鋼、２はチタン、３は炭素鋼
、１１１．を凹陥部、１２はチタンの突合せ継手、１３
は炭素鋼の突合せ継手、１４は実当金である。
特 許 出 願 人 石川に１５播磨（Ｅ工業株式会
７１代理人弁理士 絹 谷 信 雌Fig. 1 G, L Solution 1 adopted in the first embodiment of the method of the present invention
Fig. 2 is a side view showing the welded joint state of the first embodiment of the method of the present invention, and Fig. 3 is a side view showing the welded joint used in the second embodiment of the method of the present invention. Side view, 4th
The figure is a side view showing the welded joint state of the second embodiment of the method of the present invention, Figure 5 is a 1J side view showing the welded joint adopted in the conventional method, and Figure 6 is the welded joint by the conventional method. It is a side view which shows a state. In the figure, 1 is titanium clad steel, 2 is titanium, 3 is carbon steel, 111. 12 is a titanium butt joint, 13 is a concave part, and 12 is a titanium butt joint.
is a carbon steel butt joint, and 14 is a real metal. Patent applicant: Ishikawa 15 Harima (E Kogyo Co., Ltd. 71 agent patent attorney Nobuo Kinutani)
Claims (1)
ンクラッド鋼のチタンと炭素鋼との境界部に凹陥部を形
成し、該凹陥部に不活性ガスを封入して上記チタンの突
合せ継手を裏波溶接するようにしたことを特徴とするチ
タンクラッド鋼の溶接方法。1. When butt welding titanium clad steel, a recess is formed at the boundary between the titanium and carbon steel of the titanium clad steel, an inert gas is filled in the recess, and the titanium butt joint is welded using Uranami welding. A method for welding titanium clad steel, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20311888A JPH0252176A (en) | 1988-08-17 | 1988-08-17 | Welding method for titanium clad steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20311888A JPH0252176A (en) | 1988-08-17 | 1988-08-17 | Welding method for titanium clad steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0252176A true JPH0252176A (en) | 1990-02-21 |
Family
ID=16468700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20311888A Pending JPH0252176A (en) | 1988-08-17 | 1988-08-17 | Welding method for titanium clad steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0252176A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5193939A (en) * | 1990-11-16 | 1993-03-16 | Nippon Steel Corporation | Marine structure having superior corrosion resistance |
| JP2005528977A (en) * | 2002-04-29 | 2005-09-29 | カルボヌ ロレーヌ エキプマン ジェニ シミック | Method for producing components of chemical apparatus having metal support parts and anticorrosive metal coating |
| JP2010221216A (en) * | 2010-04-07 | 2010-10-07 | Carbone Lorraine Equipements Genie Chimique | Method of manufacturing component of chemical equipment equipped with metal support part and anti-corrosion metal coating |
-
1988
- 1988-08-17 JP JP20311888A patent/JPH0252176A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5193939A (en) * | 1990-11-16 | 1993-03-16 | Nippon Steel Corporation | Marine structure having superior corrosion resistance |
| JP2005528977A (en) * | 2002-04-29 | 2005-09-29 | カルボヌ ロレーヌ エキプマン ジェニ シミック | Method for producing components of chemical apparatus having metal support parts and anticorrosive metal coating |
| JP2010221216A (en) * | 2010-04-07 | 2010-10-07 | Carbone Lorraine Equipements Genie Chimique | Method of manufacturing component of chemical equipment equipped with metal support part and anti-corrosion metal coating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0481288A (en) | Method for joining steel material with aluminum material | |
| JPH0252176A (en) | Welding method for titanium clad steel | |
| US4267428A (en) | Contoured welding rod | |
| JPH11114672A (en) | Joining method for titanium clad steel to steel structure | |
| JPH09217420A (en) | Connection structure of square steel pipe column and wide flange-shaped steel beam | |
| JPS63203286A (en) | Piercing welding method for t-shaped joint | |
| JPH02280970A (en) | Method of welding titanium clad steel plate | |
| JPH077039Y2 (en) | Welded backing metal used for welding and joining H-section steel | |
| JPH06126444A (en) | Welding and joining method for welded and assembled h-shape steel | |
| JPS6188969A (en) | Welding method of shape made of al or al alloy | |
| JPH05277725A (en) | Welding method of steel member | |
| JP3065186B2 (en) | Steel frame with inner diaphragm plate | |
| JPH0615110B2 (en) | One-sided welding method | |
| JP3205781B2 (en) | Butt welding method of hollow panel | |
| JPH02280969A (en) | Method for welding titanium plate to titanium clad steel plate | |
| JPH04157072A (en) | Different material joining method | |
| JPH04135065A (en) | Method for welding and joining h-shape steel to be welded and assembled | |
| JPS617075A (en) | Fillet welding method of different metals | |
| JPH10328839A (en) | Welding method for titanium clad steel plate | |
| JPS62114793A (en) | Coupling structure for square pipe | |
| JPS6021037B2 (en) | Manufacturing method of multilayer clad board | |
| JPS58125382A (en) | Welding method of copper alloy and stainless steel | |
| JPH02165878A (en) | Electron beam welding method for low alloy steels | |
| JPH03114675A (en) | Joining structure | |
| JPS6163377A (en) | Welding method of inside reinforcing member in closed section structure member |