JPS579507A - Cooling method for work roll in hot rolling work - Google Patents
Cooling method for work roll in hot rolling workInfo
- Publication number
- JPS579507A JPS579507A JP8416380A JP8416380A JPS579507A JP S579507 A JPS579507 A JP S579507A JP 8416380 A JP8416380 A JP 8416380A JP 8416380 A JP8416380 A JP 8416380A JP S579507 A JPS579507 A JP S579507A
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- nozzle
- roll
- water
- 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.)
- 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
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
PURPOSE:To reduce the thermal crown of a roll, to improve the product quality, and to prevent the roll surface from roughing, by specifying the spraying pressure of a nozzle, the density per unit area of cooling surface of water rate sprayed from the nozzle, the flow rate of cooling water, and the cooling zone. CONSTITUTION:Each nozzle is prepared so as to spray the water in a wide angle, and the cooling water is sprayed from all nozzles so as to directly strike the work roll surface; the area of this direct cooling zone is made to >=20% of cooling zone in the surface of work roll drum; the spraying pressure P2 of each nozzle is set to 1-7kg/cm<2>. The density W2 per unit cooling area of water rate sprayed from each nozzle is determined so as to satisfy W2<=(P1/P2)<0.2-0.8>X5X10<4>(l/m<2>. min), in which P1 is the spraying pressure usually employed for the roll cooling water, that is P1=8-30kg/cm<2>. The cooling water rate per unit rolling output is adjusted to <=2.5m<3>/ton.stand. Hereby, the roll surface is prevented from roughing, and its service life is extended.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8416380A JPS579507A (en) | 1980-06-20 | 1980-06-20 | Cooling method for work roll in hot rolling work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8416380A JPS579507A (en) | 1980-06-20 | 1980-06-20 | Cooling method for work roll in hot rolling work |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18545083A Division JPS59156505A (en) | 1983-10-03 | 1983-10-03 | Method for cooling work roll in hot rolling |
| JP18545183A Division JPS59156506A (en) | 1983-10-03 | 1983-10-03 | Cooling method of work roll in hot rolling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS579507A true JPS579507A (en) | 1982-01-19 |
Family
ID=13822820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8416380A Pending JPS579507A (en) | 1980-06-20 | 1980-06-20 | Cooling method for work roll in hot rolling work |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS579507A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58202912A (en) * | 1982-05-19 | 1983-11-26 | Shinko Electric Co Ltd | Automatic flow rate controlling device of coolant valve in foil rolling mill |
-
1980
- 1980-06-20 JP JP8416380A patent/JPS579507A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58202912A (en) * | 1982-05-19 | 1983-11-26 | Shinko Electric Co Ltd | Automatic flow rate controlling device of coolant valve in foil rolling mill |
| JPH0339764B2 (en) * | 1982-05-19 | 1991-06-14 | Shinko Electric Co Ltd |
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