JPS56126005A - Rolling method for slab by sizing mill - Google Patents
Rolling method for slab by sizing millInfo
- Publication number
- JPS56126005A JPS56126005A JP2995280A JP2995280A JPS56126005A JP S56126005 A JPS56126005 A JP S56126005A JP 2995280 A JP2995280 A JP 2995280A JP 2995280 A JP2995280 A JP 2995280A JP S56126005 A JPS56126005 A JP S56126005A
- Authority
- JP
- Japan
- Prior art keywords
- slab
- length
- gap
- pair
- rolling work
- 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
- 238000005096 rolling process Methods 0.000 title abstract 8
- 238000000034 method Methods 0.000 title abstract 2
- 238000004513 sizing Methods 0.000 title 1
- 238000007688 edging Methods 0.000 abstract 4
- 238000013459 approach Methods 0.000 abstract 1
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
- B21B1/02—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 heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B1/026—Rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE:To reduce the breadth of the slab in a high yield, without causing the edge drop, by gradually changing the gap of the pair of vertical rolls from the point before the slab is running out of the pair of vertical rolls. CONSTITUTION:The rolling work for the slab is continued keeping constant the gap of the pair of vertical rolls at the normal size; as the rolling point approaches the bottom end of the slab, the gap of the pair of vertical rolls is widened from the point C corresponding to the initial length (1+b)lB of the slabe before undergoing the rolling work; thereafter the said gap is widened by DELTAB along a parabolic curve through a section of length lB. Therein the length lB is obtained by expressing the length LB of the breadth-reduced part at the bottom of the slab as a result of the rolling work of the horizontal roll following to the final edging pass in case when the method of this invention is not performed in terms of the length before the final edging pass; besides, DELTAB designates the breadth reduction in the bottom of the slab as a result of rolling work by the pair of horizontal rolls following to the final edging pass. The widening of the gap is stopped at the point D after the rolling work progresses as far as the length lB. The gap of the pair of vertical rolls is kept at this size, and the rolling work is continued as far as the distance obtained by multiplying the length lB by a parameter (b), and the edging pass is completed at the point E.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55029952A JPS6032521B2 (en) | 1980-03-10 | 1980-03-10 | How to roll plate material using a sizing mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55029952A JPS6032521B2 (en) | 1980-03-10 | 1980-03-10 | How to roll plate material using a sizing mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56126005A true JPS56126005A (en) | 1981-10-02 |
| JPS6032521B2 JPS6032521B2 (en) | 1985-07-29 |
Family
ID=12290315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55029952A Expired JPS6032521B2 (en) | 1980-03-10 | 1980-03-10 | How to roll plate material using a sizing mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6032521B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61229406A (en) * | 1985-04-03 | 1986-10-13 | Kobe Steel Ltd | Edger rolling method |
| JP2021109206A (en) * | 2020-01-10 | 2021-08-02 | 日本製鉄株式会社 | Hot width rolling reduction method of continuous casting piece |
-
1980
- 1980-03-10 JP JP55029952A patent/JPS6032521B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61229406A (en) * | 1985-04-03 | 1986-10-13 | Kobe Steel Ltd | Edger rolling method |
| JPH0322242B2 (en) * | 1985-04-03 | 1991-03-26 | Kobe Steel Ltd | |
| JP2021109206A (en) * | 2020-01-10 | 2021-08-02 | 日本製鉄株式会社 | Hot width rolling reduction method of continuous casting piece |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6032521B2 (en) | 1985-07-29 |
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