JPS5519403A - Rolling roll and production thereof - Google Patents
Rolling roll and production thereofInfo
- Publication number
- JPS5519403A JPS5519403A JP9042878A JP9042878A JPS5519403A JP S5519403 A JPS5519403 A JP S5519403A JP 9042878 A JP9042878 A JP 9042878A JP 9042878 A JP9042878 A JP 9042878A JP S5519403 A JPS5519403 A JP S5519403A
- Authority
- JP
- Japan
- Prior art keywords
- dull
- roll
- rolling roll
- discharge
- treated
- 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
- 238000005096 rolling process Methods 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- 229910001566 austenite Inorganic materials 0.000 abstract 2
- 239000010410 layer Substances 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 150000004767 nitrides Chemical class 0.000 abstract 1
- 238000005121 nitriding Methods 0.000 abstract 1
- 238000004901 spalling Methods 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
PURPOSE:To improve the dull life, by performing nitriding treatment the roll which is dull-treated by discharge. CONSTITUTION:When the surface of rolling roll is dull-treated by discharge method austenite is left over on the outermost layer thereof. When nitrided at 500 to 600 deg.C after discharge processing, the residual austenite is decomposed by heat, and nitride of high hardness deposites on the outermost layer. Thus, the dull life may be greatly increased, and dull unevenness may be eliminated. At the same time, formation of spalling on the roll surface layer may be prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9042878A JPS5519403A (en) | 1978-07-26 | 1978-07-26 | Rolling roll and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9042878A JPS5519403A (en) | 1978-07-26 | 1978-07-26 | Rolling roll and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5519403A true JPS5519403A (en) | 1980-02-12 |
Family
ID=13998325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9042878A Pending JPS5519403A (en) | 1978-07-26 | 1978-07-26 | Rolling roll and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5519403A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6216808A (en) * | 1985-07-12 | 1987-01-26 | Kawasaki Steel Corp | Roll for metallic strip |
-
1978
- 1978-07-26 JP JP9042878A patent/JPS5519403A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6216808A (en) * | 1985-07-12 | 1987-01-26 | Kawasaki Steel Corp | Roll for metallic strip |
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