JPS55110727A - Manufacture of thick steel plate - Google Patents
Manufacture of thick steel plateInfo
- Publication number
- JPS55110727A JPS55110727A JP1744579A JP1744579A JPS55110727A JP S55110727 A JPS55110727 A JP S55110727A JP 1744579 A JP1744579 A JP 1744579A JP 1744579 A JP1744579 A JP 1744579A JP S55110727 A JPS55110727 A JP S55110727A
- Authority
- JP
- Japan
- Prior art keywords
- scale
- steel plate
- slab
- heating furnace
- hot
- 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
Landscapes
- Metal Rolling (AREA)
Abstract
PURPOSE: To prevent scale-caused scratching on the surface of hot-rolled steel plate by the procedure in which a steel piece containing Si of 0.1% and more is heated at 1170°C or less in a heating furnace, the size of pores present in scale on the surface of the steel piece is controlled, and the scale is removed by injection of high-pressure water.
CONSTITUTION: A steel slab containing Si of 0.1% and more is hot-rolled into a 3mm or more thick steel plate while heating the slab at 1170°C or less in a heating furnace, whereby the pores present in scale are finely dispersed without causing the fusion of 2FeO, SiO2 formed from the reaction of FeO and SiO2 from oxidation of Si in the scale formed on the surface of the slab. The scale in such a state can be easily removed by injection of high-pressure water immediately after being taken out of the heating furnace, and thus the formation of scratches caused by scaling on the surface of original steel plate manufactured by the subsequent hot rolling process can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1744579A JPS55110727A (en) | 1979-02-17 | 1979-02-17 | Manufacture of thick steel plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1744579A JPS55110727A (en) | 1979-02-17 | 1979-02-17 | Manufacture of thick steel plate |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55110727A true JPS55110727A (en) | 1980-08-26 |
Family
ID=11944214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1744579A Pending JPS55110727A (en) | 1979-02-17 | 1979-02-17 | Manufacture of thick steel plate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55110727A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2771330B2 (en) * | 1992-03-27 | 1998-07-02 | ハイムゾート フェアヴァルトゥンゲン ゲーエムベーハー ウント コー カーゲー ベタイリグングスゲゼルシャフト | How to heat treat metal products |
CN104138900A (en) * | 2014-06-23 | 2014-11-12 | 梧州恒声电子科技有限公司 | Control method of hot-rolled steel plate |
-
1979
- 1979-02-17 JP JP1744579A patent/JPS55110727A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2771330B2 (en) * | 1992-03-27 | 1998-07-02 | ハイムゾート フェアヴァルトゥンゲン ゲーエムベーハー ウント コー カーゲー ベタイリグングスゲゼルシャフト | How to heat treat metal products |
CN104138900A (en) * | 2014-06-23 | 2014-11-12 | 梧州恒声电子科技有限公司 | Control method of hot-rolled steel plate |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS54160514A (en) | Decarburization and annealing method for directional electromagnetic steel plate | |
JPS52105520A (en) | Continuous casting and continuous hot rolling of aluminium-killed stee l | |
JPS5547324A (en) | Manufacture of al containing monodirectional silicon steel sheet with extremely high magnetic flux density | |
JPS55110727A (en) | Manufacture of thick steel plate | |
JPS5480214A (en) | Hardening method of rolls | |
JPS52134487A (en) | Facial scratch detection means for steel and iron material | |
JPS56136956A (en) | Cold rolled steel plate having superior bendability due to continuous annealing | |
JPS5588903A (en) | Manufacture of hot coil of continuously casting slab for stainless steel by direct feed rolling | |
JPS55144307A (en) | Edge crack preventing method of plate | |
JPS5672173A (en) | Production of hot water can body | |
JPS55122674A (en) | Scarfing device | |
JPS5315204A (en) | Slag removing apparatus in induction furnace | |
JPS57116727A (en) | Production of high carbon alloy steel wire rod | |
JPS5547319A (en) | Manufacture of thin steel sheet according to ultra short time annealing | |
JPS5770235A (en) | Manufacture of ferritic stainless thin steel plate excellent in working property | |
JPS56156715A (en) | Manufacture of ni-containing steel for low temperature excellent in crack tip opening displacement | |
JPS53119257A (en) | Manufacture of cold rolled steel sheet or surface treated steel sheet | |
JPS54160513A (en) | Manufacture of non-heat treated tough h-shaped steel | |
JPS5533870A (en) | Temper rolling method of mirror surface material on surface of tinplate | |
JPS5770019A (en) | Method for improving exfollation of scale on surface of hot rolled steel plate | |
JPS5285906A (en) | Lining of heating furnace skid pipe | |
JPS5584202A (en) | Surface cracking suppressing method of slab in hot rolling | |
JPS5575944A (en) | Glass surface treating method | |
JPS5533801A (en) | Hot rolling method of continuous casting slab of ferrite base stainless steel | |
JPS5764402A (en) | Manufacture of thin steel sheet of ferritic stainless steel with less ridging |