JPS54157753A - Early molding-rolling of assymmetric shape steel such as unequal sided and unequal thick angle steel, etc. - Google Patents
Early molding-rolling of assymmetric shape steel such as unequal sided and unequal thick angle steel, etc.Info
- Publication number
- JPS54157753A JPS54157753A JP6489178A JP6489178A JPS54157753A JP S54157753 A JPS54157753 A JP S54157753A JP 6489178 A JP6489178 A JP 6489178A JP 6489178 A JP6489178 A JP 6489178A JP S54157753 A JPS54157753 A JP S54157753A
- Authority
- JP
- Japan
- Prior art keywords
- unequal
- rolling
- vertical roll
- roll
- web side
- 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
- 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
- B21B1/095—U-or channel sections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
PURPOSE:To reduce the number of pass, prevent bending, and raise the efficiency of rolling by making early molding by applying a drafting to horizontal roll and one vertical roll every pass and also by fixing the other vertical roll at kissing or a definite position on the horizontal roll side all the time. CONSTITUTION:To prevent the protrusion of the web side @ portion of metal to be rolled, a square sectional shape of the steel piece or cast piece 17 is molded in advance by a double hole type rolling mill consisting of the horizontal rolls 20 and 21, and the metal 22 to be rolled, the shouldder portion (corresponding to the web side @ portion) of which is removed, is molded and rolled by an universal rolling mill while fixing the vertical roll 15 at a certain position all the time and also while drafting the vertical roll 16 every pass to obtain crude product. Thus, the position at which the web side and the vertical roll 15 meet each other is kept constant in making rolling and therefore high quality and bend-less product can be obtained without protrusions on the web side @ portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6489178A JPS54157753A (en) | 1978-06-01 | 1978-06-01 | Early molding-rolling of assymmetric shape steel such as unequal sided and unequal thick angle steel, etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6489178A JPS54157753A (en) | 1978-06-01 | 1978-06-01 | Early molding-rolling of assymmetric shape steel such as unequal sided and unequal thick angle steel, etc. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54157753A true JPS54157753A (en) | 1979-12-12 |
Family
ID=13271151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6489178A Pending JPS54157753A (en) | 1978-06-01 | 1978-06-01 | Early molding-rolling of assymmetric shape steel such as unequal sided and unequal thick angle steel, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54157753A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975658A (en) * | 2017-03-07 | 2017-07-25 | 山东钢铁股份有限公司 | The production line and production method of a kind of forklift door frame inequilateral channel-section steel |
-
1978
- 1978-06-01 JP JP6489178A patent/JPS54157753A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975658A (en) * | 2017-03-07 | 2017-07-25 | 山东钢铁股份有限公司 | The production line and production method of a kind of forklift door frame inequilateral channel-section steel |
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