JPS57198212A - Manufacture of high rigidity steel plate which is excellent in flexural rigidity - Google Patents
Manufacture of high rigidity steel plate which is excellent in flexural rigidityInfo
- Publication number
- JPS57198212A JPS57198212A JP7938081A JP7938081A JPS57198212A JP S57198212 A JPS57198212 A JP S57198212A JP 7938081 A JP7938081 A JP 7938081A JP 7938081 A JP7938081 A JP 7938081A JP S57198212 A JPS57198212 A JP S57198212A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- rigidity
- steel plate
- steel
- hot
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE:To elevate rigidity without increasing weight of a steel plate, by providing a deviation of thickness to the intermediate part in the width direction and the plate end, in the hot rolling process of soft steel and high tension steel, and also finish-rolling it in an austenite-ferrite coexistent area. CONSTITUTION:In the hot-rolling process of soft steel and high tension steel containing <= about 0.4% C, <= about 1.5% Si, <= about 2.5% Mn, and also <= about 0.1% 1 kind or more of Al, Nb, V, Ti, Zr, B, Cu and P, as necessary, they are rolled by selecting a rolling roll so that the intermediate part in the width direction of a steel plate has a deviation of thickness of 1.1 times or more, comparing with the plate end, and also finish-rolling is performed by draft of >= 5% in the austenite-ferrite coexistent area being <= Ar3 critical point and >= Ar1 critical point, by which a hot-rolling steel plate being excellent in flexural rigidity in the rolling right angle direction is obtained, and its rigidity can be further elevated by executing cold rolling and recovery annealing additionally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7938081A JPS57198212A (en) | 1981-05-27 | 1981-05-27 | Manufacture of high rigidity steel plate which is excellent in flexural rigidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7938081A JPS57198212A (en) | 1981-05-27 | 1981-05-27 | Manufacture of high rigidity steel plate which is excellent in flexural rigidity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57198212A true JPS57198212A (en) | 1982-12-04 |
Family
ID=13688259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7938081A Pending JPS57198212A (en) | 1981-05-27 | 1981-05-27 | Manufacture of high rigidity steel plate which is excellent in flexural rigidity |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57198212A (en) |
-
1981
- 1981-05-27 JP JP7938081A patent/JPS57198212A/en active Pending
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