JPS5623231A - Production of mild cold-rolled steel plate of superior formability - Google Patents
Production of mild cold-rolled steel plate of superior formabilityInfo
- Publication number
- JPS5623231A JPS5623231A JP9862279A JP9862279A JPS5623231A JP S5623231 A JPS5623231 A JP S5623231A JP 9862279 A JP9862279 A JP 9862279A JP 9862279 A JP9862279 A JP 9862279A JP S5623231 A JPS5623231 A JP S5623231A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- rolled steel
- cold
- mild
- temp
- 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
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
- C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
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 a mild cold-rolled steel plate of less surface defects and superior formability by hot rolling a mild steel slab contg. respectively predetermined ratios of Mn, S, O, N and Al at respectively specified hot rolling finish temp. and coiling temp. and further subjecting the same to box annealing after pickling and cold rolling. CONSTITUTION:The mild steel slab limited to 0.01-0.08% Mn, <=0.003% S, <=0.004% O, <=0.006% Ni and 0.015-0.08% Al or further contg. <=0.005% P besides these is prepd. Next, this mild steel slab is rolled at a temp. >=A3 point by ordinary continuous hot rolling equipment and is coiled to a temperature <=650 deg.C, to make a hot-rolled steel plate. Thence, this hot-rolled steel plate undergoes ordinary pickling and cold rolling then recrystallization annealing by box annealing at 570-670 deg.C temp. followed by skin pass rolling, whereby a cold-rolled steel plate is produced. This cold-rolled steel plate has superior deep drawability plus excellent bulging property and shape freezability as it is extremely mild.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9862279A JPS5824490B2 (en) | 1979-08-03 | 1979-08-03 | Manufacturing method of soft cold-rolled steel sheet with excellent formability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9862279A JPS5824490B2 (en) | 1979-08-03 | 1979-08-03 | Manufacturing method of soft cold-rolled steel sheet with excellent formability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5623231A true JPS5623231A (en) | 1981-03-05 |
| JPS5824490B2 JPS5824490B2 (en) | 1983-05-21 |
Family
ID=14224638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9862279A Expired JPS5824490B2 (en) | 1979-08-03 | 1979-08-03 | Manufacturing method of soft cold-rolled steel sheet with excellent formability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5824490B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59166650A (en) * | 1983-03-10 | 1984-09-20 | Nippon Steel Corp | Steel for cold rolled steel plate |
| US4473411A (en) * | 1983-07-20 | 1984-09-25 | Armco Inc. | Process of making aluminum killed low manganese deep drawing steel |
-
1979
- 1979-08-03 JP JP9862279A patent/JPS5824490B2/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59166650A (en) * | 1983-03-10 | 1984-09-20 | Nippon Steel Corp | Steel for cold rolled steel plate |
| JPS6153411B2 (en) * | 1983-03-10 | 1986-11-18 | Nippon Steel Corp | |
| US4473411A (en) * | 1983-07-20 | 1984-09-25 | Armco Inc. | Process of making aluminum killed low manganese deep drawing steel |
| EP0132365A2 (en) * | 1983-07-20 | 1985-01-30 | Armco Steel Company L.P. | Process of making aluminum killed low manganese deep drawing steel |
| JPS6039127A (en) * | 1983-07-20 | 1985-02-28 | アームコ、スティール、カンパニー、リミテッド、パートナーシップ | Manufacture of aluminum killed low manganese deep drawing steel |
| JPH0220695B2 (en) * | 1983-07-20 | 1990-05-10 | Aakomu Inc |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5824490B2 (en) | 1983-05-21 |
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