JPS5530324A - Bloom rolling method - Google Patents
Bloom rolling methodInfo
- Publication number
- JPS5530324A JPS5530324A JP10232878A JP10232878A JPS5530324A JP S5530324 A JPS5530324 A JP S5530324A JP 10232878 A JP10232878 A JP 10232878A JP 10232878 A JP10232878 A JP 10232878A JP S5530324 A JPS5530324 A JP S5530324A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- width direction
- thickness direction
- center
- rolled material
- 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
- 238000005096 rolling process Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 230000007547 defect Effects 0.000 abstract 2
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
- B21B1/02—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
- B21B1/026—Rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
PURPOSE:To prevent depression at the center of width and surface defects such as crease, flaws etc. by providing convex arched portion and convex portion at the center of the surface of roll for thickness direction pressing down that follows the roll for width direction pressing down, and rolling successively by the former roll, the latter roll and then flat roll. CONSTITUTION:The rolled material 2 pressed down in width direction by the box type caliber roll 1 is pressed down in thickness direction by the roll 4 for width direction pressing down that has a arched portion (convex portion) 4 at the center of the surface, and upper and lower faces in the thickness direction come in contact with the surface of roll 4. Then, the rolled material 2 is pressed down in thickness direction by the flat roll 3, and becomes a rolled material free from width direction thickness shrinckage and surface defects such as crease, flaws etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10232878A JPS5835762B2 (en) | 1978-08-24 | 1978-08-24 | Bloom rolling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10232878A JPS5835762B2 (en) | 1978-08-24 | 1978-08-24 | Bloom rolling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5530324A true JPS5530324A (en) | 1980-03-04 |
| JPS5835762B2 JPS5835762B2 (en) | 1983-08-04 |
Family
ID=14324465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10232878A Expired JPS5835762B2 (en) | 1978-08-24 | 1978-08-24 | Bloom rolling method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5835762B2 (en) |
-
1978
- 1978-08-24 JP JP10232878A patent/JPS5835762B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5835762B2 (en) | 1983-08-04 |
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