JPS56165503A - Rolling method with controlled draft percentage - Google Patents
Rolling method with controlled draft percentageInfo
- Publication number
- JPS56165503A JPS56165503A JP6983880A JP6983880A JPS56165503A JP S56165503 A JPS56165503 A JP S56165503A JP 6983880 A JP6983880 A JP 6983880A JP 6983880 A JP6983880 A JP 6983880A JP S56165503 A JPS56165503 A JP S56165503A
- Authority
- JP
- Japan
- Prior art keywords
- pass
- rolling
- shape
- roll
- thickness
- 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
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
- B21B1/22—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 plates, strips, bands or sheets of indefinite length
- B21B1/224—Edge rolling of flat products
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
PURPOSE:To prevent the generation of an edge drop at the top and bottom of a rolled material, by predicting the variation of shape of a rolled material after finishing a rolling pass, and by changing the thickness, shape and rolling direction of a material to be rolled. CONSTITUTION:At a roll forming pass to be carried out before a broad-side rolling pass, the roll gap of a horizontal roll is changed so as to increase by DELTAH2 the thickness for a range of length X at the end of a rolled material 2. The material 2 finished a roll forming pass is turned vertically to the rolling direction and is subjected to a broadside rolling pass. Finally, a shape controlled rolling pass wherein the said thickness increasing rolling pass and edging passes with a constant rolling reduction for every pass are carried out at the same time; hereby, the material 2 is roll formed into a rectangular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6983880A JPS56165503A (en) | 1980-05-26 | 1980-05-26 | Rolling method with controlled draft percentage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6983880A JPS56165503A (en) | 1980-05-26 | 1980-05-26 | Rolling method with controlled draft percentage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56165503A true JPS56165503A (en) | 1981-12-19 |
Family
ID=13414332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6983880A Pending JPS56165503A (en) | 1980-05-26 | 1980-05-26 | Rolling method with controlled draft percentage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56165503A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0302151A1 (en) * | 1986-01-30 | 1989-02-08 | Nippon Yakin Kogyo Co., Ltd. | Method of controlling strip crown in planetary rolling |
-
1980
- 1980-05-26 JP JP6983880A patent/JPS56165503A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0302151A1 (en) * | 1986-01-30 | 1989-02-08 | Nippon Yakin Kogyo Co., Ltd. | Method of controlling strip crown in planetary rolling |
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