JPH0156874B2 - - Google Patents

Info

Publication number
JPH0156874B2
JPH0156874B2 JP6338181A JP6338181A JPH0156874B2 JP H0156874 B2 JPH0156874 B2 JP H0156874B2 JP 6338181 A JP6338181 A JP 6338181A JP 6338181 A JP6338181 A JP 6338181A JP H0156874 B2 JPH0156874 B2 JP H0156874B2
Authority
JP
Japan
Prior art keywords
copper
welding
copper alloy
carbon steel
weld
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
Application number
JP6338181A
Other languages
Japanese (ja)
Other versions
JPS57181774A (en
Inventor
Masahiro Saito
Takashi Ooguro
Masato Zama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP6338181A priority Critical patent/JPS57181774A/en
Publication of JPS57181774A publication Critical patent/JPS57181774A/en
Publication of JPH0156874B2 publication Critical patent/JPH0156874B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/04Welding for other purposes than joining, e.g. built-up welding

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)

Description

【発明の詳細な説明】 本発明は、海水淡水化装置、海水配管、一般化
学、各種産業機械などの分野における水室、パイ
プ、タンク、反応容器などに用いられる銅又は銅
合金クラツド鋼板の突合せ、隅肉溶接法に関する
ものである。
Detailed Description of the Invention The present invention relates to butting of copper or copper alloy clad steel plates used in water chambers, pipes, tanks, reaction vessels, etc. in the fields of seawater desalination equipment, seawater piping, general chemistry, various industrial machines, etc. , regarding the fillet welding method.

従来の一般的な銅又は銅合金クラツド鋼板の突
合せ溶接法を第1図ないし第4図についてみる
と、従来炭素鋼01の表面に銅又は銅合金(以
下、銅合金という)02をクラツドした銅合金ク
ラツド鋼板を突合わせ溶接する場合、先ず第1図
に示されるように炭素鋼01側に開先03aを設
け、上記炭素鋼01と同材質の溶接棒で第2図の
溶接部03に示されるように炭素鋼01の溶接部
03を銅合金02側まで溶かさないように形成溶
接したのち、第3図に示されるように銅合金02
側より炭素鋼01側の溶接部03に食い込ませて
モネル(Ni−Cu合金)の溶接部04盛りを行う。
次に第4図に示されるように上記モネルの溶接部
04の上に銅合金02と同材質の溶接棒で溶接部
05を形成溶接して仕上げる方法がとられてい
る。
If we look at the conventional general butt welding method of copper or copper alloy clad steel sheets in Figures 1 to 4, we can see that conventional butt welding of copper or copper alloy (hereinafter referred to as copper alloy) 02 is applied to the surface of carbon steel 01. When butt welding alloy clad steel plates, first, as shown in Fig. 1, a groove 03a is provided on the carbon steel 01 side, and a welding rod made of the same material as the carbon steel 01 is used to weld the welded part 03 in Fig. 2. After forming and welding the welded part 03 of carbon steel 01 without melting it to the copper alloy 02 side, as shown in FIG.
Welding part 04 of Monel (Ni-Cu alloy) is applied by biting into welding part 03 on the carbon steel 01 side from the side.
Next, as shown in FIG. 4, a welding part 05 is formed and finished on the Monel welding part 04 using a welding rod made of the same material as the copper alloy 02.

しかし上記のような方法では、銅合金02の肉
厚が3mm以下の場合、銅合金02の溶接部05が
母材の炭素鋼01側まで溶け込み、銅合金02の
溶接部05中に鉄分が希釈し影響を与え、銅合金
クラツド鋼板の溶接割れや耐食性劣化の原因とな
ることがあつた。
However, in the above method, if the wall thickness of copper alloy 02 is 3 mm or less, the welded part 05 of copper alloy 02 will melt to the carbon steel 01 side of the base metal, and the iron content will be diluted in the welded part 05 of copper alloy 02. This sometimes caused weld cracking and deterioration of corrosion resistance of copper alloy clad steel sheets.

そこで本発明は、銅又は銅合金クラツド鋼板、
特に銅又は銅合金板の板厚が3mm以下の銅合金ク
ラツド鋼板を溶接する際に、母材炭素鋼側からの
鉄分の溶け込みによる溶接割れや耐食性の劣化を
起こさない銅合金クラツド鋼板の溶接法を提供す
ることを目的とするものである。
Therefore, the present invention provides a copper or copper alloy clad steel sheet,
A welding method for copper alloy clad steel sheets that does not cause weld cracking or deterioration of corrosion resistance due to iron dissolution from the base carbon steel side, especially when welding copper or copper alloy clad steel sheets with a thickness of 3 mm or less. The purpose is to provide the following.

すなわち本発明は、母材となる炭素鋼板上に銅
又は銅合金、特に該銅又は銅合金の肉厚が3mm以
下のものをクラツドした銅又は銅合金クラツド鋼
板どうしを突き合わせ溶接或いは隅肉溶接する際
に、あらかじめ開先部(開先のない場合は溶接
線)の銅又は銅合金表面に銅又は銅合金溶接棒で
肉盛り溶接を行なつて銅又は銅合金部の肉厚を厚
くした後、通常の溶接を行なうことを特徴とする
銅又は銅合金クラツド鋼板の溶接方法に関するも
のである。
That is, the present invention involves butt welding or fillet welding of copper or copper alloy clad steel plates, which are made by cladding copper or copper alloy, particularly those having a wall thickness of 3 mm or less, on a carbon steel plate serving as a base material. In this case, build-up welding is performed on the copper or copper alloy surface of the groove (or weld line if there is no groove) using a copper or copper alloy welding rod to increase the wall thickness of the copper or copper alloy. This invention relates to a method for welding copper or copper alloy clad steel plates, which is characterized by carrying out ordinary welding.

本発明において、母材の炭素鋼板上にクラツド
される銅又は銅合金としては、りん脱酸銅、黄銅
(Cu−Zn合金)、シリコン青銅(Cu−Si合金)、
りん青銅(Cu−Sn合金)、アルミニウム青銅
(Cu−Al合金)、9/1キユプロニツケルや7/
3キユプロニツケル等のキユプロニツケル(Cu
−Ni合金)、洋銀(ニツケルシルバー:Cu−Ni
−Zn合金)、ベリリウム青銅(Cu−Be合金)等
があり、従つてこれら銅又は銅合金側から行なう
溶接に使用される溶接棒としてはこれらと同材質
のものがあげられる。
In the present invention, the copper or copper alloy clad on the base carbon steel plate includes phosphorus deoxidized copper, brass (Cu-Zn alloy), silicon bronze (Cu-Si alloy),
Phosphor bronze (Cu-Sn alloy), aluminum bronze (Cu-Al alloy), 9/1 Cypronickel and 7/
3 Cypronickel (Cu
-Ni alloy), German silver (Cu-Ni alloy), German silver (nickel silver: Cu-Ni alloy),
-Zn alloy), beryllium bronze (Cu-Be alloy), etc. Therefore, welding rods used for welding from the copper or copper alloy side may be made of the same materials as these.

なお、クラツドされている銅合金と溶接棒に使
用される銅合金は、一般に金属組織あるいは耐食
性の面から同一材の方が良いが、後述するよう
に、りん青銅のクラツド鋼の溶接にアルミニウム
青銅の溶接棒を用いたり、またキユプロニツケル
のクラツド鋼の溶接にアルミニウム青銅の溶接棒
を用いたりすることはできる。しかし、どのよう
な種類の銅合金の組合せであつても溶接できると
は限らないので、クラツドされている銅合金と異
種の銅合金の溶接棒を用いる場合には、それらの
材質上の組合せについて十分な注意を要する。
Note that it is generally better for the clad copper alloy and the copper alloy used for the welding rod to be the same material in terms of metallographic structure or corrosion resistance, but as will be described later, when welding phosphor bronze clad steel, aluminum bronze It is possible to use aluminum bronze welding rods for welding Cypronikel clad steel. However, it is not always possible to weld any combination of copper alloys, so when using welding rods made of clad copper alloys and different types of copper alloys, consider the material combinations. Requires sufficient caution.

また本発明方法においては、クラツドされた銅
又は銅合金表面に開先部または溶接線に沿つて銅
又は銅合金溶接棒により肉盛り溶接を行なつて銅
又は銅合金部の肉厚を厚くした後、通常の溶接を
行なうのであるが、この通常の溶接の手順につい
て説明すると次の通りである。
In addition, in the method of the present invention, overlay welding is performed on the clad copper or copper alloy surface along the groove or weld line using a copper or copper alloy welding rod to increase the wall thickness of the copper or copper alloy part. After that, normal welding is performed, and the procedure for this normal welding will be explained as follows.

すなわち、上記の肉盛部に沿つて先ず炭素鋼側
からこれと同材質の炭素鋼溶接棒で溶接し、次い
で銅又は銅合金側から炭素鋼側に食い込ませてモ
ネルを溶接肉盛し、最後に同モネルの上に銅又は
銅合金溶接棒で溶接するか、あるいは先ずモネル
を炭素鋼側に食い込ませて溶接肉盛し、次いで炭
素鋼側から炭素鋼溶接棒で溶接し、最後に銅又は
銅合金側から銅又は銅合金溶接棒を用いて溶接す
る等の手順をとることができる。なお、本発明方
法は、銅又は銅合金溶接部の炭素鋼側への溶け込
みを防止することを前提としているため、この前
程を達成し得るものであればこれらの手順に限定
されることはない。
That is, along the above-mentioned build-up part, first weld from the carbon steel side with a carbon steel welding rod of the same material, then weld overlay Monel by biting into the carbon steel side from the copper or copper alloy side, and finally weld overlay. Either weld the same Monel with a copper or copper alloy welding rod, or first weld the Monel into the carbon steel side and weld overlay, then weld from the carbon steel side with a carbon steel welding rod, and finally weld the Monel with a copper or copper alloy welding rod. Procedures such as welding from the copper alloy side using a copper or copper alloy welding rod can be taken. Note that the method of the present invention is based on the premise of preventing penetration of the copper or copper alloy weld into the carbon steel side, so it is not limited to these procedures as long as it can achieve the above. .

また、上記したように、モネルを炭素鋼の溶金
と銅又は銅合金の溶金の間にはさんだようなかた
ちで溶接するのは、銅又は銅合金と炭素鋼を溶接
すると、銅の原子が炭素鋼の結晶粒界に集まるた
め材料が脆くなる(所謂はんだ脆性)という現象
が起こり、これを防止するために銅又は銅合金お
よび炭素鋼との溶接性の優れたモネルを間に介し
て溶接を行なうのである。
In addition, as mentioned above, welding Monel by sandwiching it between molten carbon steel and molten copper or copper alloy is because when welding copper or copper alloy and carbon steel, the copper atoms As a result, the material becomes brittle (so-called solder embrittlement) because the particles gather at the grain boundaries of carbon steel. Welding is performed.

以下、添付図面を参照して本発明方法を具体的
に説明する。
Hereinafter, the method of the present invention will be specifically explained with reference to the accompanying drawings.

第5図ないし第8図は本発明方法の一実施態様
例を説明するための図である。
FIGS. 5 to 8 are diagrams for explaining one embodiment of the method of the present invention.

第5図において、9/1キユプロニツケルクラ
ツド鋼板の開先部の9/1キユプロニツケル部2
(この場合、肉厚3mm)の表面に9/1キユプロ
ニツケルのTIG溶接により肉盛り溶接部6(この
場合、厚さ2mm程度)を形成する。次に第6図に
示す如く、炭素鋼1側の開先部に炭素鋼1と同質
の炭素鋼溶接棒を用いて突合せ溶接を行ない溶接
部3を形成する。次いで第7図に示す如く、9/
1キユプロニツケル部2側から上記9/1キユプ
ロニツケルの肉盛り溶接部6と炭素鋼1側の溶接
部3に食い込ませてモネルの溶接をし、溶接部4
を形成する。最後にこのモネルの溶接部4の上
に、上記9/1キユプロニツケルと同質の9/1
キユプロニツケル溶接棒で9/1キユプロニツケ
ルの肉盛り溶接部6とモネルの溶接部4を溶かし
込み、溶接部5を形成溶接する。
In Fig. 5, the 9/1 Cypron nickel part 2 of the groove part of the 9/1 Cypron clad steel plate is shown.
(In this case, the thickness is 3 mm) On the surface, a build-up welded part 6 (in this case, the thickness is about 2 mm) is formed by TIG welding of 9/1 Cypron-nickel. Next, as shown in FIG. 6, butt welding is performed on the groove on the carbon steel 1 side using a carbon steel welding rod of the same quality as the carbon steel 1 to form a welded portion 3. Then, as shown in Figure 7, 9/
1. From the 9/1 cypronickel part 2 side, weld Monel by biting into the build-up welding part 6 of the 9/1 cypronickel and the welding part 3 on the carbon steel 1 side, and weld the welded part 4.
form. Finally, on top of the welded part 4 of this Monel, 9/1 of the same quality as the above 9/1 Cypron
A Cupronickel welding rod is used to melt the build-up welding part 6 of 9/1 Cypronickel and the welding part 4 of Monel to form a welding part 5.

このように、本発明方法によれば、9/1キユ
プロニツケルの溶接部5は、9/1キユプロニツ
ケルの肉盛り溶接部6の上から施工されるため、
炭素鋼1側へ溶け込むことはなく、従つて鉄分の
希釈による溶接割れや耐食性の劣化を生じないと
いう効果を奏することができる。
As described above, according to the method of the present invention, the welded portion 5 of the 9/1 Cypron nickel is constructed over the built-up welded portion 6 of the 9/1 Cyprus nickel.
It does not melt into the carbon steel 1 side, and therefore it is possible to achieve the effect that weld cracking or corrosion resistance deterioration due to dilution of iron does not occur.

また、上記の例において、9/1キユプロニツ
ケルを7/3キユプロニツケル、アルミニウム青
銅などに変えた場合でも、上記の効果は変わらな
い。
Further, in the above example, even if 9/1 Cypronickel is replaced with 7/3 Cypronickel, aluminum bronze, etc., the above effect does not change.

第9図ないし第13図は本発明方法の他の実施
態様例を説明するための図である。
FIGS. 9 to 13 are diagrams for explaining other embodiments of the method of the present invention.

第9図において、2枚のりん青銅クラツド鋼板
は炭素鋼1側のみ開先加工され、りん青銅7(こ
の場合、肉厚2mm)側はそれぞれ溶接線に沿つて
(この場合、肉厚約4mm程度の)アルミニウム青
銅の肉盛り8が施される(ただしこの場合、炭素
鋼1側を溶かさないようにTIG溶接で行なう。)。
しかるのち第10図において、炭素鋼1側は第6
図の場合と同様に炭素鋼1と同質の炭素鋼溶接棒
により溶接部3を形成溶接する。次に第11図に
おいて、りん青銅7側は溶接線に沿つてガウジン
グにより開先9を炭素鋼1の溶接部3に達するよ
うに形成する。次に第12図に示すようにモネル
の溶接部4が炭素鋼1の溶接部3の上に盛られ、
第13図に示すように最終的にアルミニウム青銅
の溶接部10がモネルの溶接部4の上に重ねて盛
られる。尚、モネルの溶接部4およびアルミニウ
ム青銅の溶接部10はあらかじめ施工されたアル
ミニウム青銅の肉盛り8をそれぞれ溶し込むよう
に溶接される。
In Figure 9, the two phosphor bronze clad steel plates are beveled only on the carbon steel 1 side, and the phosphor bronze 7 (in this case, wall thickness is 2 mm) side is beveled along the weld line (in this case, the wall thickness is approximately 4 mm). (in this case, TIG welding is used to avoid melting the carbon steel 1 side.)
However, in Fig. 10, the carbon steel 1 side is the 6th
As in the case shown in the figure, a welded portion 3 is formed and welded using a carbon steel welding rod of the same quality as the carbon steel 1. Next, in FIG. 11, a groove 9 is formed on the phosphor bronze 7 side by gouging along the weld line so as to reach the weld part 3 of the carbon steel 1. Next, as shown in FIG. 12, a Monel weld 4 is placed on top of the carbon steel 1 weld 3.
As shown in FIG. 13, an aluminum-bronze weld 10 is finally placed over the Monel weld 4. The Monel welded portion 4 and the aluminum bronze welded portion 10 are welded so that the aluminum bronze overlay 8 that has been applied in advance is melted into the welded portion 4 and the aluminum bronze welded portion 10, respectively.

このように、本発明方法によれば、りん青銅ク
ラツド鋼板のりん青銅7の肉厚が薄くても、あら
かじめアルミニウム青銅の肉盛り8により銅合金
部の肉厚が厚くされているため、最後のアルミニ
ウム青銅の溶接部10によつても炭素鋼1側を溶
かし込むことはなく、従つて鉄分の却釈による溶
接割れや耐食性の劣化を防止することができる。
As described above, according to the method of the present invention, even if the wall thickness of the phosphor bronze 7 of the phosphor bronze clad steel sheet is thin, since the wall thickness of the copper alloy part is thickened in advance by the aluminum bronze overlay 8, the final The carbon steel 1 side is not melted by the aluminum-bronze welding part 10, and therefore weld cracking and deterioration of corrosion resistance due to iron content can be prevented.

【図面の簡単な説明】[Brief explanation of drawings]

第1図ないし第4図は、従来の銅又は銅合金ク
ラツド鋼板の溶接法の工程の要領図、第5図ない
し第8図は本発明方法の一実施態様を示す要領
図、第9図ないし第13図は本発明方法の他の実
施態様例を示す要領図である。
Figures 1 to 4 are flowcharts showing the steps of the conventional welding method for copper or copper alloy clad steel sheets, Figures 5 to 8 are flowcharts showing an embodiment of the method of the present invention, and Figures 9 to FIG. 13 is a schematic diagram showing another embodiment of the method of the present invention.

Claims (1)

【特許請求の範囲】[Claims] 1 母材となる炭素鋼板上に銅又は銅合金板をク
ラツドした銅又は銅合金クラツド鋼板どうしの溶
接を行なうに際し、開先部または溶接線に沿つ
て、クラツドされた銅又は銅合金側から銅又は銅
合金溶接棒により肉盛り溶接を行ない銅又は銅合
金部の肉厚を厚くした後、通常の溶接を行なうこ
とを特徴とする銅又は銅合金クラツド鋼板の溶接
方法。
1. When welding copper or copper alloy clad steel plates, which are made by cladding a copper or copper alloy plate onto a base material carbon steel plate, welding copper or copper alloy clad steel plates together from the clad copper or copper alloy side along the groove or weld line. Or, a method for welding copper or copper alloy clad steel plates, which comprises performing overlay welding with a copper alloy welding rod to increase the thickness of the copper or copper alloy part, and then performing normal welding.
JP6338181A 1981-04-28 1981-04-28 Welding method for copper or copper alloy clad steel plate Granted JPS57181774A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6338181A JPS57181774A (en) 1981-04-28 1981-04-28 Welding method for copper or copper alloy clad steel plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6338181A JPS57181774A (en) 1981-04-28 1981-04-28 Welding method for copper or copper alloy clad steel plate

Publications (2)

Publication Number Publication Date
JPS57181774A JPS57181774A (en) 1982-11-09
JPH0156874B2 true JPH0156874B2 (en) 1989-12-01

Family

ID=13227656

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6338181A Granted JPS57181774A (en) 1981-04-28 1981-04-28 Welding method for copper or copper alloy clad steel plate

Country Status (1)

Country Link
JP (1) JPS57181774A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100766702B1 (en) 2006-10-30 2007-10-12 현대중공업 주식회사 Method for the extension of the corrosion life time of ship's water ballast tank
CA2688835C (en) * 2007-05-31 2019-04-30 Amerifab, Inc. Layered heat exchanger pipe
CN102886589B (en) * 2012-10-08 2015-07-01 合肥工业大学 Welding process for corrosion-resistant alloy material Monel 400
CN103639574B (en) * 2013-11-26 2015-01-14 中油吉林化建工程有限公司 Welding method for T2 and 16MnR composite board
US20180021890A1 (en) * 2016-07-22 2018-01-25 Caterpillar Inc. System and method to produce a structure for a weld joint using additive manufacturing

Also Published As

Publication number Publication date
JPS57181774A (en) 1982-11-09

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