JPS5739160A - Forged steel roll having high hardened depth and preparation thereof - Google Patents
Forged steel roll having high hardened depth and preparation thereofInfo
- Publication number
- JPS5739160A JPS5739160A JP4503080A JP4503080A JPS5739160A JP S5739160 A JPS5739160 A JP S5739160A JP 4503080 A JP4503080 A JP 4503080A JP 4503080 A JP4503080 A JP 4503080A JP S5739160 A JPS5739160 A JP S5739160A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- depth
- steel
- hardening
- induction heating
- 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
- 229910000831 Steel Inorganic materials 0.000 title abstract 5
- 239000010959 steel Substances 0.000 title abstract 5
- 238000010438 heat treatment Methods 0.000 abstract 3
- 230000006698 induction Effects 0.000 abstract 3
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 229910052804 chromium Inorganic materials 0.000 abstract 2
- 229910052750 molybdenum Inorganic materials 0.000 abstract 2
- 229910052759 nickel Inorganic materials 0.000 abstract 2
- 238000005496 tempering Methods 0.000 abstract 2
- 229910052720 vanadium Inorganic materials 0.000 abstract 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE: To prepare the titled roll without loosing abrasion resistance and heat shock resistance by a method wherein steel with a specific composition containing C, Si, Mn, Ni, Cr, Mo, V is subjected to surface hardening by induction heating and, subsequently, to tempering.
CONSTITUTION: Steel comprising 0.7W1%, C, 0.8% or less Si, 0.8% or less Mn, 0.8W0.9% Ni, 3W4% Cr, 0.2W0.6% Mo, 0.01W0.1%V and the remainder of Fe and impurities is subjected to surface hardening by induction heating. That is, a steel roll is heated to a predetermined hardening temp. by induction heating over a part from a roll surface to 35W46mm in depth and, thereafter, cooled at a speed faster than a critical cooling speed or more by water spraying hardening. Thereafter, tempering treatment is applied thereto. Thereby, forged steel roll having high hardened depth of which Shore hardness after treatment is Hs 90 or more in a range from a roll surface to 35W46mm in depth is produced.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4503080A JPS5739160A (en) | 1980-04-04 | 1980-04-04 | Forged steel roll having high hardened depth and preparation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4503080A JPS5739160A (en) | 1980-04-04 | 1980-04-04 | Forged steel roll having high hardened depth and preparation thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5739160A true JPS5739160A (en) | 1982-03-04 |
Family
ID=12707931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4503080A Pending JPS5739160A (en) | 1980-04-04 | 1980-04-04 | Forged steel roll having high hardened depth and preparation thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5739160A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4599502A (en) * | 1983-11-22 | 1986-07-08 | National Forge Company | Induction hardening of steel |
| JPS61284526A (en) * | 1985-06-10 | 1986-12-15 | Japan Steel Works Ltd:The | Method for regulating surface hardness of roll for rolling |
| JPS6456826A (en) * | 1987-08-27 | 1989-03-03 | Kawasaki Steel Co | Production of operating roll for high-load cold rolling mill having great case depth |
-
1980
- 1980-04-04 JP JP4503080A patent/JPS5739160A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4599502A (en) * | 1983-11-22 | 1986-07-08 | National Forge Company | Induction hardening of steel |
| JPS61284526A (en) * | 1985-06-10 | 1986-12-15 | Japan Steel Works Ltd:The | Method for regulating surface hardness of roll for rolling |
| JPH0119444B2 (en) * | 1985-06-10 | 1989-04-11 | Japan Steel Works Ltd | |
| JPS6456826A (en) * | 1987-08-27 | 1989-03-03 | Kawasaki Steel Co | Production of operating roll for high-load cold rolling mill having great case depth |
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