JPH08325680A - Manufacture of wide and long amorphous alloy sheet - Google Patents
Manufacture of wide and long amorphous alloy sheetInfo
- Publication number
- JPH08325680A JPH08325680A JP7135098A JP13509895A JPH08325680A JP H08325680 A JPH08325680 A JP H08325680A JP 7135098 A JP7135098 A JP 7135098A JP 13509895 A JP13509895 A JP 13509895A JP H08325680 A JPH08325680 A JP H08325680A
- Authority
- JP
- Japan
- Prior art keywords
- amorphous alloy
- alloy sheet
- wide
- long
- sheet
- 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.)
- Withdrawn
Links
Landscapes
- Continuous Casting (AREA)
- Laser Beam Processing (AREA)
- Chemically Coating (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は広幅、長尺アモルファス
アロイシートの製造方法に関し、特にボイラ厚肉配管
（管台を含む）（肉厚：１５０〜３００ｍｍ）の低温ア
モルファスアロイ接合に用いるのに適する同シートの製
造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a wide and long amorphous alloy sheet, and particularly for use in low temperature amorphous alloy joining of boiler thick pipes (including nozzles) (wall thickness: 150 to 300 mm). A suitable method for producing the same sheet.
【０００２】[0002]
【従来の技術】従来のアモルファスアロイシートコイル
の製造法の一例を図３によって説明する。周囲に配置さ
れたヒータ３２によって加熱されているとりべ３３内の
アモルファスアロイ溶湯（例えば、Ｆｅ−Ｓｉ−Ｂ溶
湯）３１を誘導ローラ３４を介して急冷、圧延ローラ３
５に導いて急冷凝固、圧延することによってアモルファ
スアロイシート３６を得、これをコイル状にしてコイル
状アモルファスアロイ長尺シート３７を得ていた。この
アモルファスアロイ長尺シート３７は急冷、圧延ローラ
３５によって急冷、凝固されるため、そのローラ３５の
幅に制限され、一般には幅５０ｍｍ、最大でも１００ｍ
ｍの長さ１０ｍのものであった。2. Description of the Related Art An example of a conventional method for manufacturing an amorphous alloy sheet coil will be described with reference to FIG. Amorphous alloy molten metal (for example, Fe—Si—B molten metal) 31 in a ladle 33 heated by a heater 32 arranged around it is rapidly cooled through a guide roller 34, and the rolling roller 3 is used.
Amorphous alloy sheet 36 was obtained by conducting it to 5 and rapidly solidifying and rolling, and this was coiled to obtain coiled amorphous alloy long sheet 37. Since this amorphous alloy long sheet 37 is rapidly cooled and then rapidly cooled and solidified by the rolling roller 35, it is limited to the width of the roller 35, and generally has a width of 50 mm and a maximum of 100 m.
The length of m was 10 m.
【０００３】一方、鋼管の突合せ溶接に際して、溶接部
にアモルファスアロイシートを挿入し、鋼管外周面に高
周波ヒータを巻きつけ、１１００〜１３００℃×３０分
以下加熱して鋼管を接合する方法も知られている。On the other hand, in the butt welding of steel pipes, a method is also known in which an amorphous alloy sheet is inserted into the welded portion, a high frequency heater is wound around the outer peripheral surface of the steel pipe, and the steel pipes are joined by heating at 1100-1300 ° C. for 30 minutes or less. ing.
【０００４】[0004]
【発明が解決しようとする課題】前述したように、アモ
ルファスアロイシートの幅は一般に５０ｍｍ、最大でも
１００ｍｍであるので、厚肉（１５０〜３００ｍｍ）の
鋼管を突合せ溶接するに際して、厚肉鋼管面を覆うよう
に挿入するアモルファスアロイシートがなく、そのため
厚肉鋼管をアモルファスアロイシートを挿入して突合せ
溶接することはできなかった。As described above, the width of the amorphous alloy sheet is generally 50 mm, and the maximum is 100 mm. Therefore, when butt welding a thick steel pipe (150 to 300 mm), the thick steel pipe surface is Since there is no amorphous alloy sheet to be inserted so as to cover it, it was not possible to butt weld a thick-walled steel pipe by inserting the amorphous alloy sheet.
【０００５】そのため、厚肉鋼管の突合せ溶接に使用で
きるように、狭幅のアモルファスアロイシートを接合し
て広幅のアモルファスアロイシートを得ようとしても、
その接合部の溶接金属中にアモルファスアロイ成分の元
素の酸化物が偏析し、高温でのクリープ寿命低下の原因
となり、実用できる広幅アモルファスアロイシートを得
ることができなかった。また、従来の狭幅のアモルファ
スアロイシートを用いて厚肉鋼管を溶接しようとして
も、アーク溶接や他の溶接法では入熱が大きすぎて歪を
生じやすく、溶接割れを起こすという問題があった。Therefore, even if a narrow amorphous alloy sheet is joined to obtain a wide amorphous alloy sheet so that it can be used for butt welding of thick-walled steel pipes,
The oxide of the element of the amorphous alloy component segregates in the weld metal of the joint, which causes the decrease of the creep life at high temperature, and it is not possible to obtain a practical wide amorphous alloy sheet. Further, even if an attempt is made to weld a thick-walled steel pipe using a conventional narrow-width amorphous alloy sheet, arc welding and other welding methods have a problem that heat input is too large and strain easily occurs, causing weld cracking. .
【０００６】本発明は上記技術水準に鑑み、厚肉鋼管の
突合せ溶接にも利用することができ、かつ上述したよう
な欠点のない広幅アモルファスアロイシートの製造方法
を提供しようとするものである。In view of the above-mentioned state of the art, the present invention is intended to provide a method for producing a wide amorphous alloy sheet which can be used for butt welding of thick-walled steel pipes and does not have the above-mentioned drawbacks.
【０００７】[0007]
【課題を解決するための手段】本発明は急冷凝固法で製
造したアモルファスアロイ長尺シートの表面にＮｉメッ
キを施こした後、該シートの複数枚を幅方向が接するよ
うに並べて低入熱のＹＡＧレーザ溶接法によって、その
接触面を溶融、溶接することを特徴とする広幅、長尺ア
モルファスアロイシートの製造方法である。According to the present invention, a surface of an amorphous alloy long sheet manufactured by a rapid solidification method is plated with Ni, and then a plurality of the sheets are arranged so that their widths are in contact with each other to obtain a low heat input. The method for producing a wide and long amorphous alloy sheet is characterized in that the contact surface is melted and welded by the YAG laser welding method.
【０００８】本発明で使用されるアモルファスアロイシ
ートとしては如何なる成分のものでもよいが、一例とし
て重量％で、Ｂ：１〜２％、Ｓｉ：１〜３％、Ｍｎ：１
〜３％、Ｐ：０．５％以下、Ｓ：０．５％以下、残部：
ＦｅよりなるＦｅ−Ｓｉ−Ｂ系アモルファスアロイのシ
ートが用いられる。Ｎｉメッキとしては、例えばトリク
ロルエチレン溶剤洗浄→アルカリ脱脂→水洗→５〜１０
％Ｈ2 ＳＯ4 への１０〜３０秒浸漬→水洗よりなるメッ
キ前処理をした後、塩化ニッケル：３０ｇ／リットル、
次亜リン酸ナトリウム：１０ｇ／リットル、ヒドロキシ
酢酸ナトリウム：５０ｇ／リットル、ｐＨ：４〜６の酸
性メッキ浴で温度：９０℃、メッキ速度：１５μｍ／Ｈ
ｒの条件の無電解浸漬メッキがあげられる。また、低入
熱のＹＡＧレーザ溶接としては、一例として２ｋＷ Ｙ
ＡＧレーザ（固体レーザ）を用い、速度：１ｍ／分、貫
通溶接、ジャストフォーカス（Just Focus) 、出力：１
ｋＷの条件で行う方法があげられる。The amorphous alloy sheet used in the present invention may be composed of any component, but as an example, by weight%, B: 1 to 2%, Si: 1 to 3%, Mn: 1.
~ 3%, P: 0.5% or less, S: 0.5% or less, balance:
A Fe-Si-B type amorphous alloy sheet made of Fe is used. As the Ni plating, for example, trichloroethylene solvent washing → alkali degreasing → water washing → 5-10
% H 2 SO 4 for 10 to 30 seconds → pre-plating treatment by washing with water, nickel chloride: 30 g / liter,
Sodium hypophosphite: 10 g / l, sodium hydroxyacetate: 50 g / l, pH: 4 to 6 in acidic plating bath, temperature: 90 ° C., plating rate: 15 μm / H
An example is electroless immersion plating under the condition of r. In addition, as a low heat input YAG laser welding, for example, 2 kW Y
Using AG laser (solid-state laser), speed: 1m / min, penetration welding, Just Focus, output: 1
An example is a method of performing under the condition of kW.
【０００９】[0009]
（１）低入熱のＹＡＧレーザ溶接で狭幅のアモルファス
アロイシートを幅方向に溶接して接合することにより、
歪がなく、割れもない高品質の広幅のアモルファスアロ
イシートを低コストで製造できる。(1) By welding and joining a narrow amorphous alloy sheet in the width direction by low heat input YAG laser welding,
High-quality, wide-width amorphous alloy sheet without distortion and cracking can be manufactured at low cost.
【００１０】（２）アモルファスアロイシートを鋼管の
突合せ溶接に使用すると、鋼管の母材（炭素鋼、低合金
鋼）は大気溶解材であるので、Ａｌ2 Ｏ3 、ＳｉＯ2 な
どの形で多量の酸化物が含まれており、このうちの酸素
成分が突合せ溶接時にアモルファスアロイ中に拡散し、
アモルファスアロイ成分と結合し、大きな非金属介在物
を形成し、クリープ強度低下の原因となる。アモルファ
スアロイ表面へのＮｉメッキは母材とアモルファスアロ
イとの界面の隔壁として作用し、母材中の酸素成分のア
モルファスアロイへの拡散を防止するので、接合された
鋼管のクリープ強度の低下を防止する。(2) When an amorphous alloy sheet is used for butt welding of steel pipes, since the base material (carbon steel, low alloy steel) of the steel pipe is an atmospheric melting material, a large amount of Al 2 O 3 , SiO 2 etc. Contains oxides of which oxygen components diffuse into the amorphous alloy during butt welding,
Bonds with the amorphous alloy component to form large non-metallic inclusions, which causes a decrease in creep strength. Ni plating on the surface of the amorphous alloy acts as a partition wall at the interface between the base material and the amorphous alloy, and prevents the oxygen component in the base material from diffusing into the amorphous alloy, thus preventing the creep strength of the joined steel pipes from decreasing. To do.
【００１１】[0011]
【実施例】以下、本発明の一実施例を図１、図２を参照
しながら説明する。図１に示す常法によって得られたＦ
ｅ−Ｓｉ−Ｂ系アモルファスアロイシート（Ｂ：１〜２
％、Ｓｉ：１〜３％、Ｍｎ：１〜３％、Ｐ：０．５％以
下、Ｓ：０．５％以下、Ｆｅ：残部よりなり、幅：１０
０ｍｍ、長さ：１０ｍ、厚さ：５０μｍ）１を前記した
公知の無電解浸漬メッキ法により厚さ：５〜１０μｍの
Ｎｉメッキ２を施こした。この両面Ｎｉメッキ２を施こ
したＦｅ−Ｓｉ−Ｂ系アモルファスアロイシート１を図
２の点線で示すように幅方向に多数枚並べ、（図２は枚
数を省略して図示）低入熱ＹＡＧレーザ（出力：１ｋ
Ｗ、溶接速度：１ｍ／分）によってその接触面を突合せ
溶接３し、広幅Ｆｅ−Ｓｉ−Ｂ系アモルファスアロイシ
ート４を得た。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. F obtained by the conventional method shown in FIG.
e-Si-B system amorphous alloy sheet (B: 1-2
%, Si: 1-3%, Mn: 1-3%, P: 0.5% or less, S: 0.5% or less, Fe: balance, width: 10
0 mm, length: 10 m, thickness: 50 μm) 1 was Ni-plated 2 with a thickness of 5 to 10 μm by the above-mentioned known electroless immersion plating method. A large number of Fe-Si-B system amorphous alloy sheets 1 coated with Ni plating 2 on both sides are arranged in the width direction as shown by the dotted line in FIG. 2 (the number of sheets is omitted in FIG. 2). Laser (output: 1k
W, welding speed: 1 m / min), the contact surface was butt-welded 3 to obtain a wide Fe-Si-B type amorphous alloy sheet 4.
【００１２】上記のＮｉメッキ広幅Ｆｅ−Ｓｉ−Ｂ系ア
モルファスアロイシートを用いて、外径：１０００ｍ
ｍ、肉厚：５０ｍｍの２％Ｃｒ鋼管を突合せ溶接するに
当って、該鋼管の突合せ面に合せるように、上記広幅Ｆ
ｅ−Ｓｉ−Ｂ系アモルファスアロイシート４をリング状
に切断して、このリング状シートを該鋼管の突合せ面に
挿入し、高周波加熱（１１００〜１３００℃×３０分）
して溶融して鋼管を接合したところ、良好な接合ができ
た。Using the above Ni-plated wide Fe-Si-B type amorphous alloy sheet, the outer diameter is 1000 m.
m, wall thickness: 50 mm, when the 2% Cr steel pipe is butt-welded, the above-mentioned wide width F is adjusted so as to match the butt surface of the steel pipe.
The e-Si-B system amorphous alloy sheet 4 is cut into a ring shape, the ring-shaped sheet is inserted into the butt surface of the steel pipe, and high frequency heating (1100 to 1300 ° C x 30 minutes).
Then, the steel pipes were melted and joined, and good joining was achieved.
【００１３】[0013]
【発明の効果】本発明によれば、広幅、長尺のアモルフ
ァスアロイシートを低コストで製造することができ、厚
肉鋼管（肉厚：１５０〜３００ｍｍ）の低コスト、高性
能な突合せ溶接を可能とすることができる。According to the present invention, a wide and long amorphous alloy sheet can be manufactured at low cost, and low-cost, high-performance butt welding of thick-walled steel pipe (wall thickness: 150 to 300 mm) can be performed. It can be possible.
【図１】本発明の狭幅、長尺アモルファスアロイシート
にＮｉメッキを施こした状態を示す説明図。FIG. 1 is an explanatory view showing a state in which a narrow and long amorphous alloy sheet of the present invention is plated with Ni.
【図２】Ｎｉメッキ狭幅、長尺アモルファスアロイシー
トをＹＡＧレーザにて突合せ接合した状態を示す説明
図。FIG. 2 is an explanatory view showing a state in which a Ni-plated narrow-width amorphous alloy sheet is butt-joined with a YAG laser.
【図３】従来の狭幅、長尺アモルファスアロイシートの
製造方法の説明図。FIG. 3 is an explanatory view of a conventional method for manufacturing a narrow and long amorphous alloy sheet.
フロントページの続き (72)発明者 井上 弘法 長崎県長崎市深堀町五丁目717番１号 三 菱重工業株式会社長崎研究所内 (72)発明者 河野 隆之 長崎県長崎市深堀町五丁目717番１号 三 菱重工業株式会社長崎研究所内Front page continuation (72) Koho Inoue 5-717-1, Fukahori-cho, Nagasaki-shi, Nagasaki Sanhishi Heavy Industries Ltd. Nagasaki Research Laboratories (72) Takayuki Kono 5-717-1, Fukahori-cho, Nagasaki-shi, Nagasaki Sanryo Heavy Industries Co., Ltd. Nagasaki Research Center
Claims (1)
イ長尺シートの表面にＮｉメッキを施こした後、該シー
トの複数枚を幅方向が接するように並べて低入熱のＹＡ
Ｇレーザ溶接法によって、その接触面を溶融、溶接する
ことを特徴とする広幅、長尺アモルファスアロイシート
の製造方法。1. A low-heat-input YA, in which a long sheet of an amorphous alloy produced by a rapid solidification method is plated with Ni, and a plurality of the sheets are arranged so that their widths are in contact with each other.
A method for producing a wide and long amorphous alloy sheet, characterized in that the contact surface is melted and welded by a G laser welding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7135098A JPH08325680A (en) | 1995-06-01 | 1995-06-01 | Manufacture of wide and long amorphous alloy sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7135098A JPH08325680A (en) | 1995-06-01 | 1995-06-01 | Manufacture of wide and long amorphous alloy sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08325680A true JPH08325680A (en) | 1996-12-10 |
Family
ID=15143796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7135098A Withdrawn JPH08325680A (en) | 1995-06-01 | 1995-06-01 | Manufacture of wide and long amorphous alloy sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08325680A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896423A (en) * | 2012-09-29 | 2013-01-30 | 华中科技大学 | Method for preparing amorphous alloy and crystalline metal composite structure by laser rapid scanning |
-
1995
- 1995-06-01 JP JP7135098A patent/JPH08325680A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896423A (en) * | 2012-09-29 | 2013-01-30 | 华中科技大学 | Method for preparing amorphous alloy and crystalline metal composite structure by laser rapid scanning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20020806 |