JPS561283A - Production of electric welded steel tube - Google Patents
Production of electric welded steel tubeInfo
- Publication number
- JPS561283A JPS561283A JP7743979A JP7743979A JPS561283A JP S561283 A JPS561283 A JP S561283A JP 7743979 A JP7743979 A JP 7743979A JP 7743979 A JP7743979 A JP 7743979A JP S561283 A JPS561283 A JP S561283A
- Authority
- JP
- Japan
- Prior art keywords
- side edges
- strip material
- pressure
- steel tube
- steel strip
- 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.)
- Granted
Links
Landscapes
- General Induction Heating (AREA)
Abstract
PURPOSE: To obtain the electric welded steel tube of high pressing strength by beforehand pressing and smoothing the outside beads of the steel tube by the pressure roll having the curved face conforming to the outside diameter shape of the steel tube at the pressure-welding under heating of both side edges of a steel strip material.
CONSTITUTION: While e.g. a steel strip material 1 is being transferred in the X direction, both side edges of the steel strip material 1 are heated by an induction coil 7 and both side edges are bonded at the (c) point and pressure-welded between (c)W(e). Right after the outside surface 3 of a high temperature is begun to be formed between (c)W(e), it is pressed by a pressure roll 9 to press and eliminate beads 3. At this time the opening angle α of both side edges of the steel strip material 1 with respect to the advance axis direct at the contact point (c), the amount of drawing at the contact points (c) and (d) and the diameter of the pressure roll 9 at the (e) point are maintained at proper relations. As a result of this, the metal flow becomes gentle and becomes t1', t4', t2', t3' and the thickness near the beads is reduced. The distance between the axial centers between the pressure rolls 9 and 10 is preferably l≥0.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7743979A JPS561283A (en) | 1979-06-19 | 1979-06-19 | Production of electric welded steel tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7743979A JPS561283A (en) | 1979-06-19 | 1979-06-19 | Production of electric welded steel tube |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS561283A true JPS561283A (en) | 1981-01-08 |
JPS5739877B2 JPS5739877B2 (en) | 1982-08-24 |
Family
ID=13634046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7743979A Granted JPS561283A (en) | 1979-06-19 | 1979-06-19 | Production of electric welded steel tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS561283A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05212555A (en) * | 1992-01-31 | 1993-08-24 | Nkk Corp | Resistance seam welding equipment |
WO2020152789A1 (en) * | 2019-01-22 | 2020-07-30 | 日本製鉄株式会社 | Steel plate, butt-welded member, hot-pressed molding, steel tube, hollow quench-formed molding, and steel plate production method |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5939517U (en) * | 1982-09-06 | 1984-03-13 | トヨタ自動車株式会社 | Automotive antenna holding device |
JPS5952706U (en) * | 1982-09-29 | 1984-04-06 | いすゞ自動車株式会社 | Vehicle rod antenna storage device |
JPS6140019U (en) * | 1984-08-17 | 1986-03-13 | 株式会社ヨコオ | automotive antenna |
-
1979
- 1979-06-19 JP JP7743979A patent/JPS561283A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05212555A (en) * | 1992-01-31 | 1993-08-24 | Nkk Corp | Resistance seam welding equipment |
WO2020152789A1 (en) * | 2019-01-22 | 2020-07-30 | 日本製鉄株式会社 | Steel plate, butt-welded member, hot-pressed molding, steel tube, hollow quench-formed molding, and steel plate production method |
WO2020152887A1 (en) * | 2019-01-22 | 2020-07-30 | 日本製鉄株式会社 | Steel sheet, tailored blank, hot-press molded article, steel pipe, hollow quenched molded article, and method for producing steel sheet |
Also Published As
Publication number | Publication date |
---|---|
JPS5739877B2 (en) | 1982-08-24 |
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