JPS61216871A - Connecting method for thin high tensile steel sheet - Google Patents

Connecting method for thin high tensile steel sheet

Info

Publication number
JPS61216871A
JPS61216871A JP5762085A JP5762085A JPS61216871A JP S61216871 A JPS61216871 A JP S61216871A JP 5762085 A JP5762085 A JP 5762085A JP 5762085 A JP5762085 A JP 5762085A JP S61216871 A JPS61216871 A JP S61216871A
Authority
JP
Japan
Prior art keywords
high tensile
steel sheet
tensile steel
thin
thin high
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
Application number
JP5762085A
Other languages
Japanese (ja)
Inventor
Yoshiro Matsumoto
松本 義朗
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP5762085A priority Critical patent/JPS61216871A/en
Publication of JPS61216871A publication Critical patent/JPS61216871A/en
Pending legal-status Critical Current

Links

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  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

PURPOSE:To connect satisfactorily thin high tensile steel sheets without generating rupture by interposing a thin low-carbon steel sheet between the ends of the thin high tensile steel sheets, superposing the ends and subjecting the same to pressure resistance welding with contact electrode rollers. CONSTITUTION:The thin low-carbon steel sheet is interposed between the ends of the thin high tensile steel sheet which contain much C, Si and Mn and with which resistance welding is difficult, then the ends are superposed on each other. The superposed parts are pressurized by the contact electrode rollers under conduction of electricity and are thereby resistance-welded. The thin high tensile steel sheets and the thin low-carbon steel sheet are welded by maintaining a good fit between each other. The thin high tensile steel sheet are therefore satisfactorily welded to each other without the possibility to generating the rupture.

Description

【発明の詳細な説明】 (イ)産業上の利用分野 本発明は、Cl511M% を多く含む(例えばC)0
.1チ及び/又は5i)0.2%及び/又はMtL) 
1.0%)Icおいて、高張力薄鋼板を抵抗溶接により
接続する方法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (a) Industrial application field
.. 1ch and/or 5i) 0.2% and/or MtL)
1.0%) Ic relates to a method of connecting high tensile strength thin steel plates by resistance welding.

(ロ)従来技術 一般に、高張力鋼板は、CljeM?S含有量が抵抗溶
接が高いために困難である。このため、高張力または繰
返し曲げのかかるラインでは、ライン内で溶接堺破断を
引き起すことが多かった。
(b) Prior art In general, high tensile strength steel plates are CljeM? Resistance welding is difficult due to the high S content. For this reason, in lines subject to high tension or repeated bending, welding fractures often occur within the line.

高張力鋼板と低炭素鋼板とは比較的溶接性が良いので高
い張力や繰返し曲げのかかるラインでは高張力鋼板は低
炭素鋼板と接続されていた。ところで、先行鋼板と後行
鋼板とが異材質であることはラインの作業条件の変更を
伴う場合が多い。
Since high-strength steel plates and low-carbon steel plates have relatively good weldability, high-tensile steel plates were connected to low-carbon steel plates on lines subject to high tension or repeated bending. By the way, the fact that the preceding steel plate and the following steel plate are made of different materials often accompanies a change in the working conditions of the line.

例えば、連続焼鈍においては、高張力鋼板と低炭素鋼板
とでは、焼鈍温度条件が大きく異なる。
For example, in continuous annealing, the annealing temperature conditions are significantly different between a high-strength steel plate and a low-carbon steel plate.

したがって、高張力鋼板を多数コイル作業する場合、コ
イルととに条件変更するか、または低炭素鋼板も高張力
鋼板の条件で作業しなければならない。前者の場合は、
作業性の低下をきたし、また、作業条件の厳守は不可能
である。後者の場合は、低炭素鋼の品質低下につながる
Therefore, when coiling a large number of high-tensile steel plates, it is necessary to change the conditions between the coils and the coils, or to work the low-carbon steel plates under the same conditions as the high-tensile steel plates. In the former case,
This results in a decrease in work efficiency, and it is impossible to strictly adhere to the working conditions. In the latter case, the quality of low carbon steel will deteriorate.

(ハ)発明が解決しようとする問題点 本発明が解決しようとする問題点は、薄鋼板のプロセス
・ラインにおいて、高張力薄鋼板同志を溶接性を損うこ
となく接続できる高張力薄鋼板の接続方法を得ることに
ある。
(c) Problem to be solved by the invention The problem to be solved by the invention is to develop a high-strength thin steel plate that can connect high-strength thin steel plates to each other without impairing weldability in a process line for thin steel plates. It's all about finding a way to connect.

に)問題点を解決するための手段 本発明の高張力薄鋼板の接続方法は、高張力薄鋼板のプ
ロセス・ラインにおいて、該薄鋼板の端部間に所定の幅
の低炭素薄鋼板を挾んで重ね合せ“ ること、該重合せ
部分に抵抗溶接を施すことによって、上記問題点を解決
している。
B) Means for Solving the Problems The method for connecting high-tensile steel sheets of the present invention involves sandwiching a low-carbon thin steel sheet of a predetermined width between the ends of the thin steel sheets in a process line for high-strength thin steel sheets. The above-mentioned problem is solved by overlapping them and applying resistance welding to the overlapping portions.

(ホ)実施例 第1図は、本発明の高張力薄鋼板lの接続方法を示す。(e) Examples FIG. 1 shows a method of connecting high-strength thin steel plates 1 of the present invention.

高張力薄鋼板のプロセス・ラインにおいて、生産された
高張力薄鋼板1(以下、単に鋼板という。)の端部が整
断されて送られてくる。
In a process line for high-tensile steel sheets, the ends of produced high-tensile steel sheets 1 (hereinafter simply referred to as steel sheets) are cut and sent.

先行材および後行材としての各鋼板lの端部が互いに重
ね合される。このとき所定の幅の低炭素鋼板2を鋼板端
部間に挾み付ける。
The ends of each steel plate 1 as a leading member and a trailing member are overlapped with each other. At this time, a low carbon steel plate 2 of a predetermined width is sandwiched between the ends of the steel plates.

次いで、溶接機の接触電極ロール3によって板幅方向に
抵抗溶接を行う。
Next, resistance welding is performed in the width direction of the plate using the contact electrode roll 3 of the welding machine.

本発明法では、接続すべき薄鋼板の厚みは0.2〜3,
2耶程度のものであシ、それに使用する低炭素鋼板2の
厚みは0.05〜0.3mm程度のものであるO 低炭素鋼板2の炭素の含有量は、0.002〜0.08
tlbが好ましい。0.002%以下は製造上困難であ
る00゜08%以上では溶接性を悪化する。
In the method of the present invention, the thickness of the thin steel plates to be connected is 0.2 to 3,
The thickness of the low carbon steel plate 2 used therein is about 0.05 to 0.3 mm.The carbon content of the low carbon steel plate 2 is 0.002 to 0.08 mm.
tlb is preferred. If it is less than 0.002%, it is difficult to manufacture. If it is more than 0.08%, weldability deteriorates.

低炭素鋼板2の厚みは0.05〜0.3fiが好ましい
00.05m以下では効果が小さくなる。013n以上
では作業性が悪くなる。
The thickness of the low carbon steel plate 2 is preferably 0.05 to 0.3 fi.If it is less than 00.05 m, the effect will be small. If it exceeds 013n, workability will deteriorate.

(へ)具体的実施例 本発明法の実施結果を、従来法と対比して第1表に示す
(F) Specific Examples Table 1 shows the implementation results of the method of the present invention in comparison with the conventional method.

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

第1図は本発明の方法の概略、説明図01:高張力薄鋼
板   2:低炭素鋼板3:接触電極ロール 特許出願人 住友金属工業株式会社 (外5名)
Figure 1 is an outline of the method of the present invention, explanatory diagram 01: High tensile strength thin steel plate 2: Low carbon steel plate 3: Contact electrode roll Patent applicant Sumitomo Metal Industries, Ltd. (5 others)

Claims (1)

【特許請求の範囲】[Claims] 高張力薄鋼板のプロセス・ラインにおいて、該高張力薄
鋼板の端部間に所定の幅の低炭素薄鋼板を挾んで重ね合
せること、該重合せ部分に抵抗溶接を施すことからなる
高張力薄鋼板の接続方法。
In a high-tensile thin steel plate process line, a low-carbon thin steel plate of a predetermined width is sandwiched between the ends of the high-tensile thin steel plate and overlaid, and the overlapping portion is resistance welded. How to connect steel plates.
JP5762085A 1985-03-22 1985-03-22 Connecting method for thin high tensile steel sheet Pending JPS61216871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5762085A JPS61216871A (en) 1985-03-22 1985-03-22 Connecting method for thin high tensile steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5762085A JPS61216871A (en) 1985-03-22 1985-03-22 Connecting method for thin high tensile steel sheet

Publications (1)

Publication Number Publication Date
JPS61216871A true JPS61216871A (en) 1986-09-26

Family

ID=13060914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5762085A Pending JPS61216871A (en) 1985-03-22 1985-03-22 Connecting method for thin high tensile steel sheet

Country Status (1)

Country Link
JP (1) JPS61216871A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6107595A (en) * 1995-07-19 2000-08-22 Inland Steel Company Method for resistance welding with dilution metal and product thereof
JP2020151756A (en) * 2019-03-20 2020-09-24 日本製鉄株式会社 Method for manufacturing resistance spot welded joint and resistance spot welded joint
JP2020151757A (en) * 2019-03-20 2020-09-24 日本製鉄株式会社 Welded structure and its manufacturing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6107595A (en) * 1995-07-19 2000-08-22 Inland Steel Company Method for resistance welding with dilution metal and product thereof
JP2020151756A (en) * 2019-03-20 2020-09-24 日本製鉄株式会社 Method for manufacturing resistance spot welded joint and resistance spot welded joint
JP2020151757A (en) * 2019-03-20 2020-09-24 日本製鉄株式会社 Welded structure and its manufacturing method

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