JPS57139404A - Production of lip channel - Google Patents
Production of lip channelInfo
- Publication number
- JPS57139404A JPS57139404A JP2625481A JP2625481A JPS57139404A JP S57139404 A JPS57139404 A JP S57139404A JP 2625481 A JP2625481 A JP 2625481A JP 2625481 A JP2625481 A JP 2625481A JP S57139404 A JPS57139404 A JP S57139404A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- mills
- steel
- blank
- curved parts
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/095—U-or channel sections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE:To produce a lip channel efficiently by subjecting a blank steel ingot to rough rolling, intermediate rolling and finish rolling, then forming curved parts in the part corresponding to a web and bending the curved parts at a right angle. CONSTITUTION:A heated blank ingot is rolled with roughing mills to a thick walled blank shape steel of a prescribed shape. Thence, this is subjected repeatedly to reduction rolling with an intermediate rolling mill group to a thin walled blank shape steel of a prescribed shape. Further, it is conducted to a finishing mill group, where it is formed to a broad channel 18 by one pass rolling with horizontal rolls 16, 16' alone of UF mills, after which curved parts of a curving angle theta1 are provided at two points of a prescrived equal distance on the right and left from the center of the part corresponding to a web by means of the horizontal rolls 19, 19' of EF mills, and these parts are bent in such a way that flanges oppose to each other toward the inner side. Next, the angle theta1 is formed approximately to a right angle theta2 by the press-rolling with vertical rolls 17, 17' of UF mill. Then, the press-rolling in the vertical direction by means of the horizontal rolls 16, 16' alone of the UF mills is performed, whereby the steel is finished and shaped to a lip channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2625481A JPS57139404A (en) | 1981-02-24 | 1981-02-24 | Production of lip channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2625481A JPS57139404A (en) | 1981-02-24 | 1981-02-24 | Production of lip channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57139404A true JPS57139404A (en) | 1982-08-28 |
| JPS623682B2 JPS623682B2 (en) | 1987-01-26 |
Family
ID=12188122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2625481A Granted JPS57139404A (en) | 1981-02-24 | 1981-02-24 | Production of lip channel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57139404A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017124421A (en) * | 2016-01-14 | 2017-07-20 | 榮子 山田 | Lip channel steel |
-
1981
- 1981-02-24 JP JP2625481A patent/JPS57139404A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017124421A (en) * | 2016-01-14 | 2017-07-20 | 榮子 山田 | Lip channel steel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS623682B2 (en) | 1987-01-26 |
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