JPS57198213A - 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
- JPS57198213A JPS57198213A JP7938581A JP7938581A JPS57198213A JP S57198213 A JPS57198213 A JP S57198213A JP 7938581 A JP7938581 A JP 7938581A JP 7938581 A JP7938581 A JP 7938581A JP S57198213 A JPS57198213 A JP S57198213A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- steel
- rigidity
- plate
- steel plate
- 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 flexural rigidity of a steel plate without increasing wight of a steel material, by providing a deviation to plate thickness in the width direction of a steel plate, in the hot-rolling process of soft steel and high tension steel, and also finish-rolling it in a specific temperature area of >= Ar1 critical point. CONSTITUTION:In the hot-rolling process of soft steel and high tension steel which contains <= about 0.4%C, <= about 1.5%Si, <= about 2.5%Mn, and <= about 0.1% 1 kind or more of Al, Nb, V, Ti, Zr, B, Cu and P, as necessary, and whose Ar3 critical point is <= 800 deg.C, rolling is performed so that the plate width intermediate part has a thickness deviation of 1.1 times or more comparing with the plate end, and also in its finish-rolling stage, the rolling is performed by draft of >= 5% in an area of <= 800 deg.C and >=Ar1 critical point, by which a hot-rolling steel plate which is excellent in fluxural rigidity in the rolling right angle direction, and when it is additionally cold-rolled, holding said thickness deviation, and recovery annealing is performed, its rigidity is further elevated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7938581A JPS57198213A (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 |
|---|---|---|---|
| JP7938581A JPS57198213A (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 |
|---|---|
| JPS57198213A true JPS57198213A (en) | 1982-12-04 |
Family
ID=13688394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7938581A Pending JPS57198213A (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) | JPS57198213A (en) |
-
1981
- 1981-05-27 JP JP7938581A patent/JPS57198213A/en active Pending
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