GB1117322A - Process for producing extremely low carbon thin iron sheet - Google Patents
Process for producing extremely low carbon thin iron sheetInfo
- Publication number
- GB1117322A GB1117322A GB2788165A GB2788165A GB1117322A GB 1117322 A GB1117322 A GB 1117322A GB 2788165 A GB2788165 A GB 2788165A GB 2788165 A GB2788165 A GB 2788165A GB 1117322 A GB1117322 A GB 1117322A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- cold
- rolling
- low carbon
- subjecting
- 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.)
- Expired
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 8
- 229910052799 carbon Inorganic materials 0.000 title abstract 4
- 229910052742 iron Inorganic materials 0.000 title abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 238000005097 cold rolling Methods 0.000 abstract 4
- 238000000137 annealing Methods 0.000 abstract 3
- 238000001953 recrystallisation Methods 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 238000005261 decarburization Methods 0.000 abstract 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 230000032683 aging Effects 0.000 abstract 1
- 229910052796 boron Inorganic materials 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 abstract 1
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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0436—Cold rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
- C23D5/00—Coating with enamels or vitreous layers
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
- C21D8/0468—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment between cold rolling steps
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
- C21D8/0473—Final recrystallisation annealing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
An extremely low carbon thin iron sheet suitable for deep drawing, one-coat enamelling or electro-magnetic use is made by producing a hot rolled steel strip, cold-rolling this strip with a reduction ratio of 40-95% to form a cold-rolled low carbon steel strip having a thickness of 0.5-2.0 mm and a carbon content of less than 0.12%; subjecting this strip, in the form of an open coil, to a first recrystallization annealing including decarburization to form a low carbon iron strip containing less than 0.02%C; subjecting this strip to a second cold-rolling with a reduction ratio of 40-95%; subjecting the iron strip to a second recrystallization annealing after the second cold-rolling and finally subjecting the strip to temper rolling with a reduction ratio of 0.5-2.0%. The strip may be electrolytically cleaned after each cold-rolling. The annealing-decarburization process is carried out in an atmosphere of hydrogen, nitrogen and steam at a temperature of 600-900 DEG C. for 5-40 hours. The second recrystallization annealing is carried out in an atmosphere comprising (a) 5% CO2, 10.5 CO, 12.5% H2, 0.5% CH4, 70.7% N2 and 0.8% H2O or (b) 0.05% CO2, 0.05% CO, 5% H2 the rest being N2, at a temperature of 600-700 DEG C. for less than 4 hours. To render the iron non-ageing it may contain 0.003-0.02% of boron or 0.02-0.05% of vanadium.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3815064 | 1964-07-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1117322A true GB1117322A (en) | 1968-06-19 |
Family
ID=12517373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2788165A Expired GB1117322A (en) | 1964-07-01 | 1965-07-01 | Process for producing extremely low carbon thin iron sheet |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1117322A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3853636A (en) * | 1968-11-14 | 1974-12-10 | Nippon Kokan Kk | Method for manufacturing cold rolled steel excellent in press-formability |
| EP0672758A1 (en) * | 1994-02-17 | 1995-09-20 | Kawasaki Steel Corporation | Method of manufacturing canning steel sheet with non-aging property and superior workability |
| CN107119175A (en) * | 2017-07-04 | 2017-09-01 | 合肥市大卓电力有限责任公司 | A kind of annealing process of low-carbon cold rolling steel plate |
-
1965
- 1965-07-01 GB GB2788165A patent/GB1117322A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3853636A (en) * | 1968-11-14 | 1974-12-10 | Nippon Kokan Kk | Method for manufacturing cold rolled steel excellent in press-formability |
| EP0672758A1 (en) * | 1994-02-17 | 1995-09-20 | Kawasaki Steel Corporation | Method of manufacturing canning steel sheet with non-aging property and superior workability |
| US5587027A (en) * | 1994-02-17 | 1996-12-24 | Kawasaki Steel Corporation | Method of manufacturing canning steel sheet with non-aging property and superior workability |
| CN1049927C (en) * | 1994-02-17 | 2000-03-01 | 川崎制铁株式会社 | Method for making steel plate with good working performence |
| CN107119175A (en) * | 2017-07-04 | 2017-09-01 | 合肥市大卓电力有限责任公司 | A kind of annealing process of low-carbon cold rolling steel plate |
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