JPS6361113B2 - - Google Patents
Info
- Publication number
- JPS6361113B2 JPS6361113B2 JP6537483A JP6537483A JPS6361113B2 JP S6361113 B2 JPS6361113 B2 JP S6361113B2 JP 6537483 A JP6537483 A JP 6537483A JP 6537483 A JP6537483 A JP 6537483A JP S6361113 B2 JPS6361113 B2 JP S6361113B2
- Authority
- JP
- Japan
- Prior art keywords
- copper pipe
- inert gas
- steel plate
- back side
- hole
- 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.)
- Expired
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 25
- 229910052802 copper Inorganic materials 0.000 claims description 25
- 239000010949 copper Substances 0.000 claims description 25
- 239000011261 inert gas Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 238000005304 joining Methods 0.000 claims description 11
- 239000011324 bead Substances 0.000 claims description 7
- 239000000155 melt Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000005219 brazing Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/028—Seam welding; Backing means; Inserts for curved planar seams
- B23K9/0288—Seam welding; Backing means; Inserts for curved planar seams for welding of tubes to tube plates
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Arc Welding In General (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、鋼板の穴周縁と銅パイプの管端口縁
との接合を、不活性ガス雰囲気中での非消耗性電
極によるアーク熱で行なう方法および装置に係わ
り、特にアーク側とは反対側の裏側も不活性ガス
でシールドして、良好な裏側すみ肉ビードを形成
させる方法および装置に係る。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention provides a method for joining the periphery of a hole in a steel plate and the end edge of a copper pipe using arc heat using a non-consumable electrode in an inert gas atmosphere. The present invention relates to a method and apparatus, in particular to a method and apparatus for forming a good back fillet bead by shielding the back side opposite to the arc side with an inert gas.
従来、銅パイプを薄肉鋼板製容器に入口管また
は出口管として管端接合する際には、通常はろう
付法で施工されている。しかし、ろう付時に使用
されるフラツクスが接合後残留し、これが腐食性
を有するので、フラツクス除去のための酸浄い工
程等の追加の工程が必要としていた。
BACKGROUND ART Conventionally, when joining a copper pipe to a container made of thin-walled steel plate as an inlet pipe or an outlet pipe, a brazing method is usually used. However, the flux used during brazing remains after bonding and is corrosive, so additional processes such as an acid cleaning process are required to remove the flux.
本発明は上記に鑑みてなされたもので、ろう付
の手段によらず裏側すみ肉ビードの形成を併つ
た、美麗で強固な接合部を得ることができる銅パ
イプと鋼板の管端接合法および装置を提供するこ
とを目的とする。
The present invention has been made in view of the above, and includes a pipe end joining method for a copper pipe and a steel plate, which can form a beautiful and strong joint with the formation of a fillet bead on the back side without using brazing. The purpose is to provide equipment.
本発明は鋼板に設けられた孔に銅パイプ端部を
挿入した構造の管端部を、不活性ガス雰囲気中で
の非消耗性電極によるアーク熱によつて鋼板と銅
パイプの双方を溶融凝固させる接合法において、
アーク側とは反対側の裏側からも不活性ガスでシ
ールドして、溶融部を形成して管端部の接合を行
なうものである。
The present invention has a structure in which the end of a copper pipe is inserted into a hole provided in a steel plate, and both the steel plate and the copper pipe are melted and solidified by arc heat using a non-consumable electrode in an inert gas atmosphere. In the joining method,
The tube ends are joined by shielding with inert gas from the back side opposite to the arc side to form a molten part.
この際、アーク熱による溶融は、鋼板と銅パイ
プの双方が溶融し、溶融金属がアーク側とは反対
側の裏側まではみ出し、裏側すみ肉ビードが形成
されることが特徴である。この場合、裏側不活性
ガスシールドを行なう理由は、一つは、鋼板およ
び銅パイプ表面のぬれ性を増大させて接合を容易
に、また強固にすることと、もう一つは、形成さ
れた裏側すみ肉ビード表面の酸化を防止して美麗
な表面を得るためである。 At this time, melting due to arc heat is characterized by the fact that both the steel plate and the copper pipe are melted, the molten metal protrudes to the back side opposite to the arc side, and a back fillet bead is formed. In this case, the reason for performing a back side inert gas shield is to increase the wettability of the steel plate and copper pipe surface to make the bond easier and stronger, and to This is to prevent oxidation of the fillet bead surface and obtain a beautiful surface.
本発明は、かゝる接合法を実現するための方法
及びその装置を提供するものである。裏シールド
を実現するための方法として、アーク側に設けら
れた銅パイプ端面を覆うフードによつて接合部端
面を不活性ガスでシールドすると同時に、該不活
性ガスを銅パイプ内から接合部裏側に導き、溶融
部の裏面シールドを行なうものである。 The present invention provides a method and apparatus for realizing such a joining method. As a method to achieve back shielding, the end face of the joint is shielded with inert gas using a hood that covers the end face of the copper pipe provided on the arc side, and at the same time, the inert gas is introduced from inside the copper pipe to the back side of the joint. This is used to guide and shield the back side of the molten part.
以下、本発明の実施例を第１図、第２図によつ
て説明する。
Embodiments of the present invention will be described below with reference to FIGS. 1 and 2.
第１図において、銅パイプ１の端部を鋼板２に
設けられた孔に挿入し、銅パイプ端面を鋼板２と
同一面か、または若干引込めた状態に保持し、カ
バー３で覆われた不活性ガス雰囲気６中における
TIGトーチ７の非消耗性電極４によるアークを、
銅パイプ１の円周上を一周または一周以上走行さ
せる。またアーク側とは反対側の裏側も不活性ガ
スシールドを行なう方法の一つの実施例を示して
いる。不活性ガス雰囲気６はTIGトーチ７内から
供給される不活性ガス６″と、カバー３上部開口
から供給される不活性ガス６′とで形成され、不
活性ガス６として銅パイプ１の内側を下降し下
端から再上昇して外部へ至る。本例ではTIGトー
チ７を用いているため、必らず内部に不活性ガス
は流通する為、カバー３形状を工夫しさえすれば
一方の不活性ガス６′の省略も可能である。第２
図は、この方法で得られた接合部の断面形状を示
すものであり、溶着金属５として裏側すみ肉ビー
ドが形成され、不溶着部のノツチが残留しない。
また、これによつて美麗なる表面状態が得られ、
接合後の後処理が不用となる。 In FIG. 1, the end of a copper pipe 1 is inserted into a hole provided in a steel plate 2, the end face of the copper pipe is held flush with the steel plate 2 or slightly retracted, and the end is covered with a cover 3. In an inert gas atmosphere 6
The arc caused by the non-consumable electrode 4 of the TIG torch 7,
It runs around the circumference of the copper pipe 1 once or more than once. Moreover, one embodiment of a method for shielding the back side with inert gas on the opposite side from the arc side is also shown. The inert gas atmosphere 6 is formed by an inert gas 6'' supplied from inside the TIG torch 7 and an inert gas 6' supplied from the upper opening of the cover 3. It descends and rises again from the bottom end to reach the outside.Since the TIG torch 7 is used in this example, inert gas will necessarily flow inside, so if the shape of the cover 3 is devised, one of the inert gases will reach the outside. It is also possible to omit the gas 6'.
The figure shows the cross-sectional shape of the joint obtained by this method, in which a fillet bead on the back side is formed as the welded metal 5, and no notch in the unwelded part remains.
In addition, this provides a beautiful surface condition,
Post-processing after bonding becomes unnecessary.
以上説明したように本発明によれば、鋼板およ
び銅パイプ自身が溶融して溶着金属となるもので
あつて、追加の溶加棒を必要とすることなく、接
合方法が極めて簡単であるという特長を有してい
る。
As explained above, according to the present invention, the steel plate and copper pipe themselves are melted to become weld metal, and the joining method is extremely simple without requiring an additional filler rod. have.
また、本発明の方法によれば、表面が美麗なし
かも十分な寸法を有する裏側すみ肉ビードを得る
ことができる。これによつて、接合後の後処理が
不要になり、設備的にも工程的にも単純化され、
経済的な接合法となるものである。 Further, according to the method of the present invention, it is possible to obtain a back fillet bead with a beautiful surface and sufficient dimensions. This eliminates the need for post-processing after bonding, simplifying the equipment and process.
This is an economical joining method.
第１図は本発明の実施例を示す説明図、第２図
は本発明による実施例の切断面を示す。
１……銅パイプ、２……鋼板、３……カバー、
４……非消耗性電極、５……溶着金属、６……不
活性ガス雰囲気、６′，６″，６……不活性ガ
ス、７……TIGトーチ。
FIG. 1 is an explanatory diagram showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the embodiment according to the present invention. 1...Copper pipe, 2...Steel plate, 3...Cover,
4...Non-consumable electrode, 5...Welding metal, 6...Inert gas atmosphere, 6', 6'', 6...Inert gas, 7...TIG torch.
Claims (1)
した構造の、銅パイプの管端口縁と鋼板の板孔周
縁とを接合する方法において、不活性ガス雰囲気
中の非消耗性電極によるアークによつて、鋼板の
板孔周縁および銅パイプの管端部の双方を溶融せ
しめると同時に、アーク側の不活性ガスを銅パイ
プ内に通過させ、接合部とは反対側の銅パイプ端
部から外に流出する不活性ガスを接合部裏側に誘
導して、裏側も該不活性ガスでシールドして裏側
すみ肉ビードを形成させることを特徴とする銅パ
イプと鋼板の管端接合法。 ２ 鋼板に設けられた孔に、銅パイプ端部を挿入
した構造の、銅パイプの管端口縁と鋼板の板孔周
縁とを接合する装置において、不活性ガス雰囲気
中で非消耗電極アークを発生することができるト
ーチ、接合される銅パイプ端面全周を覆うフー
ド、および銅パイプ内を通過した不活性ガスを溶
融部の裏側に誘導させるような構造を備えたこと
を特徴とする銅パイプと鋼板の管端接合装置。[Scope of Claims] 1. A method for joining the end edge of a copper pipe and the periphery of a hole in a steel plate in a structure in which the end of the copper pipe is inserted into a hole provided in a steel plate in an inert gas atmosphere. The arc generated by the non-consumable electrode melts both the periphery of the hole in the steel plate and the end of the copper pipe, and at the same time, the inert gas on the arc side is passed into the copper pipe, and the inert gas on the side opposite to the joint is melted. A pipe made of a copper pipe and a steel plate, characterized in that an inert gas flowing out from the end of the copper pipe is guided to the back side of the joint, and the back side is also shielded with the inert gas to form a fillet bead on the back side. End joining method. 2. In a device for joining the end edge of a copper pipe and the periphery of a hole in a steel plate, which has a structure in which the end of a copper pipe is inserted into a hole in a steel plate, a non-consumable electrode arc is generated in an inert gas atmosphere. A copper pipe characterized by being equipped with a torch that can be joined, a hood that covers the entire circumference of the end surface of the copper pipe to be joined, and a structure that guides inert gas that has passed through the copper pipe to the back side of the molten part. Steel plate pipe end joining equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6537483A JPS59191569A (en) | 1983-04-15 | 1983-04-15 | Method and device for joining end of copper pipe and steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6537483A JPS59191569A (en) | 1983-04-15 | 1983-04-15 | Method and device for joining end of copper pipe and steel plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59191569A JPS59191569A (en) | 1984-10-30 |
| JPS6361113B2 true JPS6361113B2 (en) | 1988-11-28 |
Family
ID=13285123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6537483A Granted JPS59191569A (en) | 1983-04-15 | 1983-04-15 | Method and device for joining end of copper pipe and steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59191569A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4782851B2 (en) * | 2009-02-25 | 2011-09-28 | 島田理化工業株式会社 | Brazing method and brazing apparatus |
| CN103658937B (en) * | 2013-12-04 | 2015-12-02 | 马鞍山马钢设备安装工程有限公司 | A kind of welding method of making steel bale panoramic tables sheet material |
| JP6104442B1 (en) * | 2016-08-23 | 2017-03-29 | 有限会社秋元鉛工所 | Method for welding thin copper plate, welding apparatus for thin copper plate, and method for producing drainage drain |
-
1983
- 1983-04-15 JP JP6537483A patent/JPS59191569A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59191569A (en) | 1984-10-30 |
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