JPS6434504A - Manufacture of roller for rolling - Google Patents
Manufacture of roller for rollingInfo
- Publication number
- JPS6434504A JPS6434504A JP19011087A JP19011087A JPS6434504A JP S6434504 A JPS6434504 A JP S6434504A JP 19011087 A JP19011087 A JP 19011087A JP 19011087 A JP19011087 A JP 19011087A JP S6434504 A JPS6434504 A JP S6434504A
- Authority
- JP
- Japan
- Prior art keywords
- ruggedness
- roller
- rmax
- flatness ratio
- rolling
- 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
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/005—Rolls with a roughened or textured surface; Methods for making same
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
PURPOSE:To improve the roller life and to uniformize the surface quality of a product steel sheet by forming ruggedness on a roller surface by high energy density beams and further roughening the surface by a mechanical means and then forming ruggedness having a specific flatness ratio by electrolytic etching and chrome plating. CONSTITUTION:A roller surface ground to be Rmax of <7.0mum is worked with high energy density beams to regularly form ruggedness having Rmax of >=7.0mum. Further, the surface is roughened by a mechanical means to form fine flaws. Then, the entire roller surface is provided with ultrafine ruggedness by electrolytic etching. After that, regular ruggedness having a flatness ratio F' of 0.20-0.90 is formed by chrome plating. The flatness ratio is expressed by F'=A'/(A'+B'); where, A' is an area where the max. peak-to-valley height, Rmax is <7.0mum, B' is an area where Rmax is >=7.0mum. By use of such roller for rolling, excellent workability and brightness are concurrently given to steel sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19011087A JPS6434504A (en) | 1987-07-31 | 1987-07-31 | Manufacture of roller for rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19011087A JPS6434504A (en) | 1987-07-31 | 1987-07-31 | Manufacture of roller for rolling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6434504A true JPS6434504A (en) | 1989-02-06 |
Family
ID=16252544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19011087A Pending JPS6434504A (en) | 1987-07-31 | 1987-07-31 | Manufacture of roller for rolling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6434504A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0456162A2 (en) * | 1990-05-07 | 1991-11-13 | Aluminum Company Of America | Engineered textures for all stands and stages of rolling |
| US6668611B2 (en) * | 2001-04-06 | 2003-12-30 | The Furukawa Electric Co., Ltd. | Aluminum or aluminum alloy extruding die |
-
1987
- 1987-07-31 JP JP19011087A patent/JPS6434504A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0456162A2 (en) * | 1990-05-07 | 1991-11-13 | Aluminum Company Of America | Engineered textures for all stands and stages of rolling |
| EP0456162A3 (en) * | 1990-05-07 | 1992-02-12 | Aluminum Company Of America | Engineered textures for all stands and stages of rolling |
| JPH04228210A (en) * | 1990-05-07 | 1992-08-18 | Aluminum Co Of America <Alcoa> | Method for rolling metallic material and method for adjusting surface of rolling roll |
| US6668611B2 (en) * | 2001-04-06 | 2003-12-30 | The Furukawa Electric Co., Ltd. | Aluminum or aluminum alloy extruding die |
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