JPS56160805A - Manufacture of cold rolled steel sheet - Google Patents
Manufacture of cold rolled steel sheetInfo
- Publication number
- JPS56160805A JPS56160805A JP6561380A JP6561380A JPS56160805A JP S56160805 A JPS56160805 A JP S56160805A JP 6561380 A JP6561380 A JP 6561380A JP 6561380 A JP6561380 A JP 6561380A JP S56160805 A JPS56160805 A JP S56160805A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- bright
- steel sheet
- cold rolled
- dull
- 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
Landscapes
- Metal Rolling (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
PURPOSE: To manufacture a cold rolled steel sheet free from surface flaws with an improved yield, by applying a skin pass rolling work simultaneously to both sides of a cold rolled steel sheet with a bright roll for one side and a dull roll for another side, wherein the surface roughnesses of the bright roll and the dull roll are respectively prescribed.
CONSTITUTION: A skin pass rolling work is applied to a cold rolled steel sheet, both sides at the same time, that is, one side by a bright roll (the upper roll, for example) and another side by a dull roll (the lower roll, for example). The bright surface of the bright roll is finished to <1.0μm Hmax surface roughness and the surface of the dull roll is finished to ≥3μm Hmax surface roughness; by using these rolls a bright steel sheet free from the surface flaws is manufactured. The present method is extremely easily practicable, and prevents the generation of surface flaws which is considered as a fatal deficiency of manufacture of a bright steel sheet. The dull pattern transferred to the rear side of the sheet displays an effect of improving a press formability.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6561380A JPS56160805A (en) | 1980-05-16 | 1980-05-16 | Manufacture of cold rolled steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6561380A JPS56160805A (en) | 1980-05-16 | 1980-05-16 | Manufacture of cold rolled steel sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56160805A true JPS56160805A (en) | 1981-12-10 |
Family
ID=13292040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6561380A Pending JPS56160805A (en) | 1980-05-16 | 1980-05-16 | Manufacture of cold rolled steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56160805A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS591636A (en) * | 1982-06-26 | 1984-01-07 | Nisshin Steel Co Ltd | Manufacture of bright painted plated steel sheet |
| JPS6075368A (en) * | 1983-09-30 | 1985-04-27 | Nisshin Steel Co Ltd | Manufacture of painted steel plate having excellent brilliance and corrosion resistance |
-
1980
- 1980-05-16 JP JP6561380A patent/JPS56160805A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS591636A (en) * | 1982-06-26 | 1984-01-07 | Nisshin Steel Co Ltd | Manufacture of bright painted plated steel sheet |
| JPS6075368A (en) * | 1983-09-30 | 1985-04-27 | Nisshin Steel Co Ltd | Manufacture of painted steel plate having excellent brilliance and corrosion resistance |
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