JPS5731401A - Method and apparatus for rolling billet - Google Patents
Method and apparatus for rolling billetInfo
- Publication number
- JPS5731401A JPS5731401A JP10614980A JP10614980A JPS5731401A JP S5731401 A JPS5731401 A JP S5731401A JP 10614980 A JP10614980 A JP 10614980A JP 10614980 A JP10614980 A JP 10614980A JP S5731401 A JPS5731401 A JP S5731401A
- Authority
- JP
- Japan
- Prior art keywords
- insulating material
- induction heater
- semifinished product
- heated
- reduced
- 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
- 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
- B21B45/004—Heating 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
- B21B1/02—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 heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B2001/022—Blooms or billets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
PURPOSE:To lower the heating temperature of a soaking pit to the lowest temperature region, by installing an electrical induction heater for heating a semifinished produce between a roughing mill and a finishing mill, and by reheating only a temperature lowered part of the semifinished product. CONSTITUTION:A cast ingot, heated by a soaking pit to >=1,150 deg.C, is processed successively by a roughing mill, a hot scarfer, and a shearing machine; thus prepared semifinished product 10 is heated by an electrical induction heater 5 to about 950-1,050 deg.C, and is then fed to a finishing mill. In case of manufacturing a square billet, for example, the induction heater 5 comprises a hollow square cylinder- shaped electrical insulating material 13, a spiral coil 12 internally set in the insulating material 13, and a hollow refractory 14 for protecting the insulating material 13 from the external heat; the semifinished product 10 is carried by a table roller 11 and is passed within the hollow refractory 14 while keeping a prescribed clearance 15. By the present method, the scale loss of the material is about 40% reduced from that in the conventional method, and the unit consumption of total energy is about 30% reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10614980A JPS5731401A (en) | 1980-07-31 | 1980-07-31 | Method and apparatus for rolling billet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10614980A JPS5731401A (en) | 1980-07-31 | 1980-07-31 | Method and apparatus for rolling billet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5731401A true JPS5731401A (en) | 1982-02-19 |
Family
ID=14426282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10614980A Pending JPS5731401A (en) | 1980-07-31 | 1980-07-31 | Method and apparatus for rolling billet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5731401A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0639929A (en) * | 1992-03-18 | 1994-02-15 | Peguform Werke Gmbh | Production of fiber-reinforced plastic girder material for automoble bumper and reinforced plastic girder material |
-
1980
- 1980-07-31 JP JP10614980A patent/JPS5731401A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0639929A (en) * | 1992-03-18 | 1994-02-15 | Peguform Werke Gmbh | Production of fiber-reinforced plastic girder material for automoble bumper and reinforced plastic girder material |
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