JPS56142821A - Production of high-strength zinc-plated steel plate excellent in workability - Google Patents
Production of high-strength zinc-plated steel plate excellent in workabilityInfo
- Publication number
- JPS56142821A JPS56142821A JP4351280A JP4351280A JPS56142821A JP S56142821 A JPS56142821 A JP S56142821A JP 4351280 A JP4351280 A JP 4351280A JP 4351280 A JP4351280 A JP 4351280A JP S56142821 A JPS56142821 A JP S56142821A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- steel plate
- workability
- cooled
- cooling rate
- 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
- 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)
- Coating With Molten Metal (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
PURPOSE:To produce the titled steel plate having a composite structure by a method wherein a steel plate is successively subjected to soaking at a temperature of not lower than Ac1 temperature, cooling at a spacified cooling rate and plating in a continuous hot dipping line, then it is reheated for an alloying treatment and cooled to a temperature of not higher than Ms temperature. CONSTITUTION:The hot rolled or cold rolled steel plate containing not more than 0.15% of C and 1.0-2.5% of (Mn+Cr) is treated in the continuous hot dipping line as follows: Firstly, the steel plate is soaked at the temperature of not lower than Ac1 but below 900 deg.C to austenitize the steel partly or entirely. Next, the steel plate thus soaked is cooled at an average cooling rate of not less than 5 deg.C/sec and is plated. Thereafter, the steel plate is reheated to a temperature at which pearlitic transformation does not takes place, namely, a temperature of not higher than 600 deg.C and is maintained at said temperature for alloying treatment. The steel plate thus treated is then cooled to a temperature of not higher than Ms temperature at a cooling rate of not less than 10 deg.C/sec to produce the objective high-strength zinc- plated steel plate excellent in workability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4351280A JPS56142821A (en) | 1980-04-04 | 1980-04-04 | Production of high-strength zinc-plated steel plate excellent in workability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4351280A JPS56142821A (en) | 1980-04-04 | 1980-04-04 | Production of high-strength zinc-plated steel plate excellent in workability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56142821A true JPS56142821A (en) | 1981-11-07 |
Family
ID=12665780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4351280A Pending JPS56142821A (en) | 1980-04-04 | 1980-04-04 | Production of high-strength zinc-plated steel plate excellent in workability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56142821A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6440584B1 (en) | 2000-01-24 | 2002-08-27 | Nkk Corporation | Hot-dip galvanized steel sheet and method for producing the same |
| CN102560309A (en) * | 2012-02-13 | 2012-07-11 | 山东泰丰节能新材料有限公司 | Method for preparing nanometer composite hot galvanizing coat of steel plate |
| CN104328262A (en) * | 2014-11-25 | 2015-02-04 | 武汉钢铁(集团)公司 | Production method of steel plate having iron-zinc alloy plated layer with extension rate of more than 42% |
-
1980
- 1980-04-04 JP JP4351280A patent/JPS56142821A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6440584B1 (en) | 2000-01-24 | 2002-08-27 | Nkk Corporation | Hot-dip galvanized steel sheet and method for producing the same |
| EP1443124A1 (en) * | 2000-01-24 | 2004-08-04 | JFE Steel Corporation | Hot-dip galvanized steel sheet and method for producing the same |
| CN102560309A (en) * | 2012-02-13 | 2012-07-11 | 山东泰丰节能新材料有限公司 | Method for preparing nanometer composite hot galvanizing coat of steel plate |
| CN104328262A (en) * | 2014-11-25 | 2015-02-04 | 武汉钢铁(集团)公司 | Production method of steel plate having iron-zinc alloy plated layer with extension rate of more than 42% |
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