JPS5794402A - Method for forming roughly shaped steel billet of forestage for h-steel - Google Patents
Method for forming roughly shaped steel billet of forestage for h-steelInfo
- Publication number
- JPS5794402A JPS5794402A JP16992480A JP16992480A JPS5794402A JP S5794402 A JPS5794402 A JP S5794402A JP 16992480 A JP16992480 A JP 16992480A JP 16992480 A JP16992480 A JP 16992480A JP S5794402 A JPS5794402 A JP S5794402A
- Authority
- JP
- Japan
- Prior art keywords
- slab
- forestage
- roughly shaped
- shaped steel
- steel
- 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 7
- 239000010959 steel Substances 0.000 title abstract 7
- 238000005299 abrasion Methods 0.000 abstract 2
- 238000007688 edging Methods 0.000 abstract 2
- 238000005096 rolling process Methods 0.000 abstract 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000009749 continuous casting Methods 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
Classifications
-
- 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
- B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/088—H- or I-sections
- B21B1/0883—H- or I-sections using forging or pressing devices
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Forging (AREA)
Abstract
PURPOSE:To reduce the abrasion of blades of a crop saw by forming the angle parts on both side surfaces in the leading and trailing end parts of a slab to a tapered shape, and subjecting the slab to edging rolling thereby forming a roughly shaped steel billet of forestage for H-steel having a dogbone shape. CONSTITUTION:A slab 12 obtained by continuous casting is heated and the angle parts of both side surfaces in the leading and trailing end parts of the slab 12 are formed to a tapered shape with a horizontal press 11 provided with a pair of dies 13, whereby a preform slab is obtained. This perform slab is subjected to edging rolling by means of box type calibers, whereby a roughly shaped steel billet of forestage of H-steel having a dogbone shape in section is obtained. The abrasion of the blade of a crop saw is reduced and the degradation in productivity owing to changing of blades is prevented by the shape of the roughly shaped steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16992480A JPS5794402A (en) | 1980-12-02 | 1980-12-02 | Method for forming roughly shaped steel billet of forestage for h-steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16992480A JPS5794402A (en) | 1980-12-02 | 1980-12-02 | Method for forming roughly shaped steel billet of forestage for h-steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5794402A true JPS5794402A (en) | 1982-06-11 |
Family
ID=15895465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16992480A Pending JPS5794402A (en) | 1980-12-02 | 1980-12-02 | Method for forming roughly shaped steel billet of forestage for h-steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5794402A (en) |
-
1980
- 1980-12-02 JP JP16992480A patent/JPS5794402A/en active Pending
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