JPS55122820A - Manufacture of alloyed zinc-plated high tensile steel sheet with superior workability - Google Patents
Manufacture of alloyed zinc-plated high tensile steel sheet with superior workabilityInfo
- Publication number
- JPS55122820A JPS55122820A JP2953879A JP2953879A JPS55122820A JP S55122820 A JPS55122820 A JP S55122820A JP 2953879 A JP2953879 A JP 2953879A JP 2953879 A JP2953879 A JP 2953879A JP S55122820 A JPS55122820 A JP S55122820A
- Authority
- JP
- Japan
- Prior art keywords
- high tensile
- tensile steel
- plated
- steel sheet
- superior workability
- 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
Landscapes
- Coating With Molten Metal (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
PURPOSE: To manufacture an alloyed Zn-plated high tensile steel sheet with superior workability at a low cost by plating a high tensile steel sheet material with Zn; heating the plated material to a specified temp. range to alloy the Zn; and cooling it to 300°C or below at a critical cooling rate or more.
CONSTITUTION: A high tensile steel slab contg. C 0.005W0.20wt% and Mn 0.3W 2.5wt% is hot rolled and coiled. This hot coil is descaled, cold rolled, and plated with Zn by galvanizing or electroplating. The plated sheet is then heated to a temp. from the Ac1 transformation point to the Ac3 transformation point to accelerate alloying as well as concentrate C in the r-phase, and it is rapidly cooled to 300°C or below at a critical cooling rate of CR°C/sec (equation I) or more determined according to the compsn. Thus, an alloyed Zn-plated high tensile steel sheet having ferrite-martensite two-phase mixed structure and exhibiting superior workability is cheaply manufactured with a smaller amt. of alloying elements.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2953879A JPS55122820A (en) | 1979-03-13 | 1979-03-13 | Manufacture of alloyed zinc-plated high tensile steel sheet with superior workability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2953879A JPS55122820A (en) | 1979-03-13 | 1979-03-13 | Manufacture of alloyed zinc-plated high tensile steel sheet with superior workability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55122820A true JPS55122820A (en) | 1980-09-20 |
| JPS6256209B2 JPS6256209B2 (en) | 1987-11-25 |
Family
ID=12278881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2953879A Granted JPS55122820A (en) | 1979-03-13 | 1979-03-13 | Manufacture of alloyed zinc-plated high tensile steel sheet with superior workability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55122820A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4530858A (en) * | 1983-05-24 | 1985-07-23 | Union Siderurgique Du Nord Et De L'est De La France (Usinor) | Process and installation for continuous manufacturing of an old (over-aged) steel band having a coating of ZN, Al or ZN-Al alloy |
| JPS61284594A (en) * | 1985-06-10 | 1986-12-15 | Nippon Steel Corp | Plated steel sheet having zn-base plating with superior adhesion |
| JPS624860A (en) * | 1985-07-01 | 1987-01-10 | Kawasaki Steel Corp | Manufacture of high tension alloyed hot dip galvanized steel sheet |
| JPS627842A (en) * | 1985-07-03 | 1987-01-14 | Kawasaki Steel Corp | High tension alloyed hot dip galvanized steel sheet having satisfactory ductility and its manufacture |
| US4913746A (en) * | 1988-08-29 | 1990-04-03 | Lehigh University | Method of producing a Zn-Fe galvanneal on a steel substrate |
| WO1993011271A1 (en) * | 1991-12-06 | 1993-06-10 | Kawasaki Steel Corporation | Method of manufacturing molten zinc plated steel plates having few unplated portions |
| US5384206A (en) * | 1991-03-15 | 1995-01-24 | Nippon Steel Corporation | High-strength cold-rolled steel strip and molten zinc-plated high-strength cold-rolled steel strip having good formability and method of producing such strips |
| US5690755A (en) * | 1992-08-31 | 1997-11-25 | Nippon Steel Corporation | Cold-rolled steel sheet and hot-dip galvanized cold-rolled steel sheet having excellent bake hardenability, non-aging properties at room temperature and good formability and process for producing the same |
| US7396420B2 (en) * | 2000-04-07 | 2008-07-08 | Jfe Steel Corporation | Hot-dip galvanized hot-rolled and cold-rolled steel sheets excellent in strain age hardening property |
| EP2182080A1 (en) | 2008-10-30 | 2010-05-05 | Kabushiki Kaisha Kobe Seiko Sho | High yield ratio and high-strength hot-dip galvanized steel sheet excellent in workability and production method thereof |
| EP2465962A1 (en) | 2006-07-14 | 2012-06-20 | Kabushiki Kaisha Kobe Seiko Sho | High-strength steel sheets and processes for production of the same |
| WO2013105395A1 (en) * | 2012-01-12 | 2013-07-18 | 新日鐵住金株式会社 | Low alloy steel |
| US9115416B2 (en) | 2011-12-19 | 2015-08-25 | Kobe Steel, Ltd. | High-yield-ratio and high-strength steel sheet excellent in workability |
| US9611524B2 (en) | 2012-03-30 | 2017-04-04 | Kobe Steel, Ltd. | High-yield-ratio high-strength steel sheet having excellent workability |
-
1979
- 1979-03-13 JP JP2953879A patent/JPS55122820A/en active Granted
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4530858A (en) * | 1983-05-24 | 1985-07-23 | Union Siderurgique Du Nord Et De L'est De La France (Usinor) | Process and installation for continuous manufacturing of an old (over-aged) steel band having a coating of ZN, Al or ZN-Al alloy |
| JPS61284594A (en) * | 1985-06-10 | 1986-12-15 | Nippon Steel Corp | Plated steel sheet having zn-base plating with superior adhesion |
| JPH0243834B2 (en) * | 1985-06-10 | 1990-10-01 | Nippon Steel Corp | |
| JPS624860A (en) * | 1985-07-01 | 1987-01-10 | Kawasaki Steel Corp | Manufacture of high tension alloyed hot dip galvanized steel sheet |
| JPS627842A (en) * | 1985-07-03 | 1987-01-14 | Kawasaki Steel Corp | High tension alloyed hot dip galvanized steel sheet having satisfactory ductility and its manufacture |
| US4913746A (en) * | 1988-08-29 | 1990-04-03 | Lehigh University | Method of producing a Zn-Fe galvanneal on a steel substrate |
| US5384206A (en) * | 1991-03-15 | 1995-01-24 | Nippon Steel Corporation | High-strength cold-rolled steel strip and molten zinc-plated high-strength cold-rolled steel strip having good formability and method of producing such strips |
| WO1993011271A1 (en) * | 1991-12-06 | 1993-06-10 | Kawasaki Steel Corporation | Method of manufacturing molten zinc plated steel plates having few unplated portions |
| US5433796A (en) * | 1991-12-06 | 1995-07-18 | Kawasaki Steel Corporation | Method for preparing galvanized steel strip having minimal uncoated defects |
| US5690755A (en) * | 1992-08-31 | 1997-11-25 | Nippon Steel Corporation | Cold-rolled steel sheet and hot-dip galvanized cold-rolled steel sheet having excellent bake hardenability, non-aging properties at room temperature and good formability and process for producing the same |
| US7396420B2 (en) * | 2000-04-07 | 2008-07-08 | Jfe Steel Corporation | Hot-dip galvanized hot-rolled and cold-rolled steel sheets excellent in strain age hardening property |
| EP2465962A1 (en) | 2006-07-14 | 2012-06-20 | Kabushiki Kaisha Kobe Seiko Sho | High-strength steel sheets and processes for production of the same |
| EP2465961A1 (en) | 2006-07-14 | 2012-06-20 | Kabushiki Kaisha Kobe Seiko Sho | High-strength steel sheets and processes for production of the same |
| EP2182080A1 (en) | 2008-10-30 | 2010-05-05 | Kabushiki Kaisha Kobe Seiko Sho | High yield ratio and high-strength hot-dip galvanized steel sheet excellent in workability and production method thereof |
| US8133330B2 (en) | 2008-10-30 | 2012-03-13 | Kobe Steel, Ltd. | High yield ratio and high-strength hot-dip galvanized steel sheet excellent in workability and production method thereof |
| US9115416B2 (en) | 2011-12-19 | 2015-08-25 | Kobe Steel, Ltd. | High-yield-ratio and high-strength steel sheet excellent in workability |
| WO2013105395A1 (en) * | 2012-01-12 | 2013-07-18 | 新日鐵住金株式会社 | Low alloy steel |
| JP5418702B2 (en) * | 2012-01-12 | 2014-02-19 | 新日鐵住金株式会社 | Low alloy steel |
| CN104053803A (en) * | 2012-01-12 | 2014-09-17 | 新日铁住金株式会社 | Low alloy steel |
| US9611524B2 (en) | 2012-03-30 | 2017-04-04 | Kobe Steel, Ltd. | High-yield-ratio high-strength steel sheet having excellent workability |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6256209B2 (en) | 1987-11-25 |
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