JPS645604A - Method for skin pass rolling of cold rolled steel sheet - Google Patents
Method for skin pass rolling of cold rolled steel sheetInfo
- Publication number
- JPS645604A JPS645604A JP16256787A JP16256787A JPS645604A JP S645604 A JPS645604 A JP S645604A JP 16256787 A JP16256787 A JP 16256787A JP 16256787 A JP16256787 A JP 16256787A JP S645604 A JPS645604 A JP S645604A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- equation
- rmax
- steel sheet
- 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
Landscapes
- Metal Rolling (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
PURPOSE:To improve the accuracy of cut sheets and to prevent generation of mistakes in sucking transfer by using a roll which is worked by beams and has a specific flatness ratio and a dull roll having a specific roughness as work rolls and performing rolling by specifying a relation between their radius, an inlet side sheet thickness, and a draft. CONSTITUTION:A roll which is worked with high-energy density beams and has a flatness ratio F', defined by the equation I, of >=0.5 is used as a work roll and a dull roll whose Rmax is >=6mum is used as the other work roll. In the equation, a' is an area where the max. height Rmax of roll surface unevennesses is <7.0mum and B' is an area where Rmax is >=7.0mum. In the case that a radius of the work roll, inlet side sheet thickness, and draft are denoted by Rmm, (h)mm, and (r), respectively; rolling is performed to satisfy the equation II. Hence, the brightness is given to only one side actually requiring it and the other surface is finished to have a dullness not less than a prescribed dullness, so that handling of the steel sheet is facilitated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16256787A JPS645604A (en) | 1987-06-30 | 1987-06-30 | Method for skin pass rolling of cold rolled steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16256787A JPS645604A (en) | 1987-06-30 | 1987-06-30 | Method for skin pass rolling of cold rolled steel sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS645604A true JPS645604A (en) | 1989-01-10 |
| JPH0516921B2 JPH0516921B2 (en) | 1993-03-05 |
Family
ID=15757042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16256787A Granted JPS645604A (en) | 1987-06-30 | 1987-06-30 | Method for skin pass rolling of cold rolled steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS645604A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5785989A (en) * | 1980-11-19 | 1982-05-28 | Kawasaki Steel Corp | Zinc electroplated steel plate forming star mark hardly during press working |
| JPS63132701A (en) * | 1986-11-25 | 1988-06-04 | Kawasaki Steel Corp | Steel sheet for painting and its production |
-
1987
- 1987-06-30 JP JP16256787A patent/JPS645604A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5785989A (en) * | 1980-11-19 | 1982-05-28 | Kawasaki Steel Corp | Zinc electroplated steel plate forming star mark hardly during press working |
| JPS63132701A (en) * | 1986-11-25 | 1988-06-04 | Kawasaki Steel Corp | Steel sheet for painting and its production |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0516921B2 (en) | 1993-03-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |