JPS5544584A - Production by continuous annealing of cold rolled steel plate of superior workability and age resistance - Google Patents
Production by continuous annealing of cold rolled steel plate of superior workability and age resistanceInfo
- Publication number
- JPS5544584A JPS5544584A JP11873978A JP11873978A JPS5544584A JP S5544584 A JPS5544584 A JP S5544584A JP 11873978 A JP11873978 A JP 11873978A JP 11873978 A JP11873978 A JP 11873978A JP S5544584 A JPS5544584 A JP S5544584A
- Authority
- JP
- Japan
- Prior art keywords
- rolled steel
- cold rolled
- sec
- temperature
- 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.)
- Granted
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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
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)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
PURPOSE:To produce the cold rolled steel plate provided with high workability and aging resistance through continuous annealing by rapidly heating the cold rolled steel hoop then employing the apecial heat cycle from the start of quenching until overaging treatment. CONSTITUTION:The cold rolled steel hoop (e.g.; Al killed steel of thickness 0.8mm) is raised of temperature by rapid heating of 90 deg.C/sec. up to 730 deg.C and is soaked for 15 seconds at 730 deg.C as illustrated, after which it is subjected to quenching of 150 deg.C/sec. down to the respective temperatures between 600 deg.C and room temperature. After it is held for 5 seconds at this temperature, it is cooled or raised of temperature at 40 deg.C/sec. to overaging treating temperatuer of 400 deg.C, whereby it is subjected to overaging treatment, and the cold rolled steel plate of superior workability and aging resistance is thus produced. If the heating rate at the high remperature portions from about 600 deg.C to soaking temperature is made 40 deg.C/sec. or higher, the aging characteristic may be improved much more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11873978A JPS5810447B2 (en) | 1978-09-27 | 1978-09-27 | Manufacturing method by continuous annealing of cold-rolled steel sheets with excellent workability and aging resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11873978A JPS5810447B2 (en) | 1978-09-27 | 1978-09-27 | Manufacturing method by continuous annealing of cold-rolled steel sheets with excellent workability and aging resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5544584A true JPS5544584A (en) | 1980-03-28 |
| JPS5810447B2 JPS5810447B2 (en) | 1983-02-25 |
Family
ID=14743861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11873978A Expired JPS5810447B2 (en) | 1978-09-27 | 1978-09-27 | Manufacturing method by continuous annealing of cold-rolled steel sheets with excellent workability and aging resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5810447B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5554526A (en) * | 1978-10-13 | 1980-04-21 | Nippon Steel Corp | Manufacture of cold rolled steel plate with superior deep drawability by continuous annealing |
| JPS57207122A (en) * | 1981-06-12 | 1982-12-18 | Nippon Kokan Kk <Nkk> | Production of cold rolled steel plate having superior aging resistance by continuous annealing |
| JPH04247826A (en) * | 1991-01-22 | 1992-09-03 | Nippon Steel Corp | Manufacture of al killed cold rolled steel sheet excellent in surface property by continuous annealing |
-
1978
- 1978-09-27 JP JP11873978A patent/JPS5810447B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5554526A (en) * | 1978-10-13 | 1980-04-21 | Nippon Steel Corp | Manufacture of cold rolled steel plate with superior deep drawability by continuous annealing |
| JPS57207122A (en) * | 1981-06-12 | 1982-12-18 | Nippon Kokan Kk <Nkk> | Production of cold rolled steel plate having superior aging resistance by continuous annealing |
| JPH04247826A (en) * | 1991-01-22 | 1992-09-03 | Nippon Steel Corp | Manufacture of al killed cold rolled steel sheet excellent in surface property by continuous annealing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5810447B2 (en) | 1983-02-25 |
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