JPS5639111A - Controlling method for coiling temperature at hot rolling of rod material - Google Patents
Controlling method for coiling temperature at hot rolling of rod materialInfo
- Publication number
- JPS5639111A JPS5639111A JP11479579A JP11479579A JPS5639111A JP S5639111 A JPS5639111 A JP S5639111A JP 11479579 A JP11479579 A JP 11479579A JP 11479579 A JP11479579 A JP 11479579A JP S5639111 A JPS5639111 A JP S5639111A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- rod material
- mill
- finishing mill
- time
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B2045/0236—Laying heads for overlapping rings on cooling conveyor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars
Abstract
PURPOSE:To cool the hot rolled rod material exactly to the aim coiling temperature without time- lag, by forecasting the mill's run-out side temperature from the actually measured rod material's temperature at the feed-in side of the finishing mill, and by controlling the amount of the cooling water according to the forecasted run-out side temperature, in case of cooling the hot rolled rod material. CONSTITUTION:In case of finish rolling the rod material by the hot finishing mill 5, the rod temperature T1(t) at the feed-in side of the finishing mill 5 at the time (t) is measured by the thermometer 10. From the correlation between the inlet and outlet temperatures of the finishing mill 5, the forecasted temperature T2'(t+DELTAt12) of the rod material on the run-out side of the finishing mill 5 after passing the time DELTAt12 required by the rod material in passing through the finishing mill 5, that is the time (t+DELTAt12), is obtained. Next, from the correlatin model for the mill's run-out side temperature, the amount of the cooling water, and the coiling temperature, the temperature T3'(t+DELTAt13) after the time DELTAt13 required by the rod material from running out of the mill till arriving at the coiler 7 is forecasted. The amount of the cooling water Q(t+DELTAt13) required in making above forecasted temperature to be equal to the aim coiling temperature T3 is calculated, and this amount of cooling water is supplied from the water cooling device 6 for cooling the rod material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11479579A JPS5639111A (en) | 1979-09-07 | 1979-09-07 | Controlling method for coiling temperature at hot rolling of rod material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11479579A JPS5639111A (en) | 1979-09-07 | 1979-09-07 | Controlling method for coiling temperature at hot rolling of rod material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5639111A true JPS5639111A (en) | 1981-04-14 |
JPS6350085B2 JPS6350085B2 (en) | 1988-10-06 |
Family
ID=14646872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11479579A Granted JPS5639111A (en) | 1979-09-07 | 1979-09-07 | Controlling method for coiling temperature at hot rolling of rod material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5639111A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58125308A (en) * | 1982-01-19 | 1983-07-26 | Mitsubishi Electric Corp | Device for controlling temperature of wire rod |
-
1979
- 1979-09-07 JP JP11479579A patent/JPS5639111A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58125308A (en) * | 1982-01-19 | 1983-07-26 | Mitsubishi Electric Corp | Device for controlling temperature of wire rod |
Also Published As
Publication number | Publication date |
---|---|
JPS6350085B2 (en) | 1988-10-06 |
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