WO1995011320A1 - Tole d'acier laminee a froid d'une excellente aptitude au façonnage, et son procede de production - Google Patents
Tole d'acier laminee a froid d'une excellente aptitude au façonnage, et son procede de production Download PDFInfo
- Publication number
- WO1995011320A1 WO1995011320A1 PCT/JP1994/001752 JP9401752W WO9511320A1 WO 1995011320 A1 WO1995011320 A1 WO 1995011320A1 JP 9401752 W JP9401752 W JP 9401752W WO 9511320 A1 WO9511320 A1 WO 9511320A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cold
- tin
- steel sheet
- rolled steel
- rolled
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- 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
-
- 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
- C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
-
- 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
- C21D8/041—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 involving a particular fabrication or treatment of ingot or slab
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/004—Dispersions; Precipitations
-
- 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
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- 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
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
-
- 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
- C21D8/0426—Hot rolling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Definitions
- the present invention is directed to a remelted material of scrap iron by an electric furnace or the like for recycling scrap iron generated from automobile scraps and the like, which is increasing rapidly, and contains particularly high N.
- the present invention relates to a cold-rolled steel sheet excellent in cold workability and a method for producing the same. Background art
- r-value rank-ford value
- Japanese Patent Publication No. 44-18066 discloses a steel having a C content of 0.001 to 0.2% and a Ti content of 0.15% or less. A technique for stabilizing C by adding 02-0.5% is disclosed.
- Japanese Patent Publication No. 54186/1991 discloses a method in which both C and N are reduced to 0.005% or less and Ti and Nb are added. A technique has been disclosed in which Ti, Nb, and B are added in order to reduce these as much as possible and fix them.
- the N content is high, the workability is significantly deteriorated.
- the N content is 60 ppm or more, machining involving large deformation such as deep drawing becomes almost impossible.
- a method such as vacuum degassing, and the cost for this must be increased.
- Japanese Patent Application Laid-Open No. 57-26124 discloses a technology for producing a high N cold-rolled steel sheet.
- the amounts of C, Mn, and A1 are specified, and a cold-rolled steel sheet having an N content of 30 to 200 ⁇ is continuously annealed at a predetermined temperature to obtain a cold-rolled steel sheet having excellent bake hardenability.
- This cold-rolled steel sheet contains a large amount of ⁇ , so that the amount of free ⁇ (excluding N combined with Ti, Nb, etc. from total ⁇ ) is ensured.
- This free N exerts bake hardenability.
- the strength can be increased by adding P, Si, and Ti to the steel sheet.
- JP-A-57-26124 does not disclose any technique for ensuring the workability of high N steel.
- the present inventors invented and applied for a high-N content hot-rolled steel sheet having strength and workability and a manufacturing technique thereof in Japanese Patent Application No. 4-292352.
- steel with high N 50 to 150 ppm
- it is intended to obtain a hot rolled steel sheet having the tensile strength S ⁇ gfZmm 2 or more dispersed at a ratio of like elongation 0.0008 to 0.015% by weight when securing the the monitor l ⁇ m or more and TiN.
- the present invention provides a steel sheet for cold rolling and vacuum degassing which is excellent in workability even at high N when recycling scrap and using an electric furnace therefor. It provides a manufacturing method that does not require such treatments. Structure of the invention
- the present inventors have investigated the steel composition, crystal structure, precipitate morphology (type, amount, distribution state) and mechanical properties of the steel sheet after cold rolling annealing to achieve the above object.
- A1 quenched steel was melted using an electric furnace. Since N could be predicted to increase beforehand, Ti was added for the purpose of fixing and rendering it harmless.
- Ladle composition C: 302ppm, Si: 0.009%, Mn: 0.163%, P: 0.005%, S: 0.0118%, A1: 0.0319%, N: 122ppm, Ti: 0.029% (free N by adding Ti 37 ppm), Cr: 0.015%, Cu: 0.016%, Ni: 0.026%.
- the steel was forged, hot rolled, cold rolled, and annealed under various conditions, and the materials (yield point, tensile strength, elongation, r value) were investigated.
- yield point 16 ⁇ lSkgfZmm 2 , tensile strength 30 ⁇ 32kgf / mm 2 , elongation 44 ⁇ 46%, r value 1.7 ⁇ 1.8 and good workability, yield point: 18 ⁇ 25kgfZ 2, tensile strength. 37 to 39KgfZmm 2, elongation 36-38%, various materials very until processing difficult hard material and r value 1.4 to 1.5 were obtained.
- the cooling rate during the fabrication was set to 1 °.
- CZmin The values were set to various values between and the relationship between the mechanical properties of the steel sheet after annealing and the morphology of TiN was investigated. In addition to this, a material with the same other components and a low N of 26 ppm
- corresponding materials (Hereinafter referred to as “corresponding materials”) were processed in the same process and the same investigation was conducted.
- the heating temperature of the strip was 1200 ° C
- the hot rolling temperature was 880 ° C
- the thickness of the cold-rolled sheet was 3.5 mm
- the rolling reduction was 77%
- the continuous annealing condition was 820 ° C for 1 minute.
- the length of one side is defined as d and the size of TiN.
- This size d is less than 0.05 ⁇ m (hereinafter A rank), 0.05 ⁇ : lO Classified as zm (B rank) and more than 10 ⁇ m (C rank), the percentage of each rank is indicated by weight%, and this is the form of TiN (horizontal axis).
- FIG. 2 shows the sketch diagram of TiN measured by an electron microscope.
- Fig. 2 (1) is an example when d is l // m position
- Fig. 2 (2) is an example when d force is 3 ⁇ m position
- (3) is d is 6-7 m. This is an example.
- the present invention forms TiN by adding Ti, and specifies the size of TiN within a predetermined range. Even with the presence of the free N content, mechanical properties such as yield point, tensile strength or r-value could be significantly improved.
- the product according to the present invention satisfies C: 0.1% or less by weight%, N: 0.0060 to 0.0150%, Mn: Mn / S ⁇ 7, and 0.4% or less, S: 0.030% or less, A1: 0.1% or less, Ti: N ⁇ %) — Ti / 3.42 (%) ⁇ 0.0070 and contains 0.08% or less, with the balance being Fe and unavoidable impurities, and 0.05 ⁇ ; lO / m size (measured by electron microscope This is a cold-rolled steel sheet composed of a structure in which TiN having a content of 1 to 2 or more of the total weight of TiN is precipitated.
- molten steel having the above chemical components is cooled at a cooling rate of 10 to 50 ° CZ in a temperature range from the freezing point to 600 ° C to form a piece. Is heated, then hot rolled, wound at a temperature of 700 ° C or more, cold rolled, and subjected to continuous annealing. When box annealing a cold rolled sheet, heat the piece at 1130 ° C or more, and wind it at 650 ° C or less after hot rolling.
- FIGS. 1A, 1B, 1C and 1D show the relationship between TiN size and material properties.
- FIG. 2 is a diagram showing an example of measuring the size of TiN.
- C increases the strength of the steel and degrades cold workability (elongation and drawability), so it was set to 0.1% or less. Preferably, it is 0.05% or less.
- Mn in order to detoxify S is added c But too much is added to a MnZ S ⁇ 7 workability (elongation, deep drawability) so degrading, so the upper limit is made 0.4%.
- A1 is an element added for the purpose of deoxidation and for fixing N which has not been detoxified by Ti.
- the addition of a large amount lowers elongation, so the upper limit is set to 0.1%.
- the lower limit is set to 0.005%. Below this value, the above objectives cannot be achieved.
- N is a harmful element for workability, but it is not necessary to fix and detoxify the entire amount with ⁇ . However, it is necessary to specify the amount of free N that is not fixed by Ti.
- N (%)-Ti / 3.42 (%) which represents the amount of free N, must be 0.0070% or less. If it exceeds 0.0070%, the amount of A1N precipitated to fix excess free N increases, and the grain growth during annealing is hindered. For this reason, elongation and r value decrease.
- Ti is added to fix and detoxify N as described above. Both require N (%)-Ti / 3.42 ⁇ %) ⁇ 0.0070%. However, if the amount is too large, excess Ti bonds to C to precipitate TiC, and elongation and r-value deteriorate. Therefore, the upper limit is set to 0.08%.
- B combines with N to form BN, which has the effect of preventing the precipitation of A1N.
- the precipitation state of A1N is easily affected by the temperature history of hot rolling. Cause. To avoid this, it is desirable to perform high-temperature winding by hot rolling. If B is added, this drawback can be captured and a cold-rolled steel sheet with good deep drawability can be manufactured by continuous annealing without performing hot rolling at high temperature.
- the addition amount of B is 1.0 ⁇ 1.3XB (% / (N (%)-Ti (%) / 3.42) ⁇ 1.5. That is, 1.3XB ⁇ %) / (N (%)-Ti (% ) Z3.42) indicates the atomic ratio of B to free N. If it is 1.0 or more, high-temperature winding can be omitted. If more than 1.5 times B of free N is added, elongation and r-value decrease, so it is necessary to limit it to 1.5 times or less.
- the components other than the above components are substantially made of Fe, but the inclusion of unavoidable elements mixed in from smelting raw materials such as scrap is allowed. C Next, the manufacturing conditions will be described.
- the molten steel having the above-mentioned components is poured into a forging device such as a continuous forging device and rapidly cooled to produce a piece.At this time, the cooling rate in the temperature range from the solidification temperature to 600 ° C is ⁇ ⁇ / min. Cool in the range of By this cooling, the size of TiN weighing 1/2 or more of the total weight is reduced to 0.05 to 10 m. C Next, the piece is heated at a normal heating temperature and then hot-rolled.
- the hot rolling conditions are not particularly limited, but when a cold-rolled steel sheet having excellent deep drawability is obtained by the continuous annealing method, the winding temperature is set to 700 ° C or more.
- the free N (N (%) — Ti Z3.42 (%)) is set to 0.0040% or less. If the free N is 0.0040% or less, N is fixed and rendered harmless as A1N. In particular, when securing deep drawing workability, when manufacturing in a continuous annealing process, the annealing time is short and the aging treatment of N is difficult (A1N forming time is short). And N is preliminarily precipitated as A1N by hot rolling at a high temperature of 700 ° C or higher. In addition, this high-temperature winding also performs lump and granulation of carbides.
- the heating temperature of the piece should be 1130 ° C or higher and the winding temperature should be 650 ° C or lower.
- N (%)-Ti / 3.42 ⁇ %) needs to be 0.0020 to 0.0070%. That is, in order to secure the deep drawability, in the case of manufacturing by the box annealing method, unlike the case of manufacturing by continuous annealing, at least 0,0020% of free N remains, and A1N is precipitated in the annealing step. Use A1N to improve texture. For this reason, the steel slab is heated to a high temperature of 1130 ° C or higher to completely turn A1N into a solution, and hot-rolled low-temperature winding is performed so that it does not precipitate until the annealing step.
- the cold rolling conditions are not particularly limited, and normal rolling is performed to a desired thickness.
- Nefrey N total N-Ti / 3.42
- Form of TiN a: 0.05 ⁇ m ⁇ 1 ⁇ size ⁇ 50% of 10 ⁇ 111 ⁇ * 3 ⁇ 4 b: 10 ⁇ m ⁇ 50% of TiN size force J ⁇ c: TiN size ⁇ 0.05% 50% of m force
- the steel containing B shown in Table 5 was hot-rolled, cold-rolled and annealed under the conditions shown in Table 6. The materials obtained at this time are shown in Table 6.
- the present invention is a.
- TiN form a: 0.05 ⁇ m ⁇ TiN size 10 ⁇ m force 50% J3 ⁇ 4 ⁇
- the steel sheet of the present invention after the surface treatment showed good processability
- the basis weight of Zn was 20 g / m 2 on one side, and an organic film having a thickness of 0.8 / zm was applied thereon.
- the steels with the components shown in Table 9 were subjected to hot rolling, cold rolling and annealing under the conditions shown in Table 10 and hot-dip zinc plating. The materials obtained at this time are also shown in Table 10.
- the steel sheet of the present invention showed an excellent material even after the hot-dip zinc plating treatment.
- the basis weight of the molten zinc plating was lOOgZm 2 on one side.
- the steels having the components shown in Table 11 were subjected to hot rolling, cold rolling, annealing and electric tin plating under the conditions shown in Table 12. The materials obtained at this time are also shown in Table 12.
- the steel of the present invention shows an excellent material even for a steel plate for tinplate.
- TiN form a: 0.05 / zm ⁇ TiN size ⁇ 10 / m 50% of force h b: 10 // m ⁇ 50% of TiN size food ii c: 50% J3 ⁇ 4 ⁇ of TiN size 0.05 0.05 zm power *
- the cold-rolled steel sheet according to the present invention can be used not only as a cold-rolled steel sheet but also as an original sheet of a surface-treated steel sheet such as a hot-dip galvanized steel sheet, an electro-zinc plated steel sheet, and an electro-tin plated steel sheet. Yes, its industrial significance is extremely large
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)
- Heat Treatment Of Steel (AREA)
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19944497994 DE4497994C2 (de) | 1993-10-18 | 1994-10-18 | Kaltgewalztes Stahlblech und Verfahren zu seiner Herstellung |
CA 2151951 CA2151951C (en) | 1993-10-18 | 1994-10-18 | Cold rolled steel sheet having excellent machinability and production method therof |
KR1019950702441A KR0173499B1 (ko) | 1993-10-18 | 1994-10-18 | 가공성이 우수한 냉연강판 및 그의 제조방법 |
DE19944497994 DE4497994T1 (de) | 1993-10-18 | 1994-10-18 | Kaltgewalztes Stahlblech mit hervorragender Bearbeitbarkeit und Verfahren zu seiner Herstellung |
US08/481,426 US5558726A (en) | 1993-10-18 | 1994-10-18 | Cold rolled steel having excellent machinability and production thereof |
GB9512305A GB2289057B (en) | 1993-10-18 | 1994-10-18 | Cold rolled steel sheet having excellent machinability and production method thereof. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5/260247 | 1993-10-18 | ||
JP26024793A JP3314833B2 (ja) | 1993-10-18 | 1993-10-18 | 加工性の優れた冷延鋼板及びその製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995011320A1 true WO1995011320A1 (fr) | 1995-04-27 |
Family
ID=17345402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1994/001752 WO1995011320A1 (fr) | 1993-10-18 | 1994-10-18 | Tole d'acier laminee a froid d'une excellente aptitude au façonnage, et son procede de production |
Country Status (10)
Country | Link |
---|---|
US (1) | US5558726A (ja) |
JP (1) | JP3314833B2 (ja) |
KR (1) | KR0173499B1 (ja) |
CN (1) | CN1040776C (ja) |
CA (1) | CA2151951C (ja) |
DE (2) | DE4497994T1 (ja) |
GB (1) | GB2289057B (ja) |
MY (1) | MY112255A (ja) |
TW (1) | TW310345B (ja) |
WO (1) | WO1995011320A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19834361A1 (de) * | 1998-07-30 | 2000-02-03 | Schaeffler Waelzlager Ohg | Bauteil, insbesondere Wälzlager- und Motorenbauteil |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6090226A (en) * | 1994-03-29 | 2000-07-18 | Nippon Steel Corporation | Steel plate excellent in brittle crack propagation arrest characteristics and low temperature toughness and process for producing same |
US5928442A (en) * | 1997-08-22 | 1999-07-27 | Snap-On Technologies, Inc. | Medium/high carbon low alloy steel for warm/cold forming |
US6200395B1 (en) | 1997-11-17 | 2001-03-13 | University Of Pittsburgh - Of The Commonwealth System Of Higher Education | Free-machining steels containing tin antimony and/or arsenic |
US5961747A (en) * | 1997-11-17 | 1999-10-05 | University Of Pittsburgh | Tin-bearing free-machining steel |
JP3793351B2 (ja) * | 1998-06-30 | 2006-07-05 | 新日本製鐵株式会社 | 焼付硬化性に優れた冷延鋼板 |
AUPP811399A0 (en) * | 1999-01-12 | 1999-02-04 | Bhp Steel (Jla) Pty Limited | Cold rolled steel |
US6206983B1 (en) | 1999-05-26 | 2001-03-27 | University Of Pittsburgh - Of The Commonwealth System Of Higher Education | Medium carbon steels and low alloy steels with enhanced machinability |
WO2002063058A1 (fr) * | 2001-02-07 | 2002-08-15 | Nkk Corporation | Feuille d"acier mince et procede de fabrication de ladite feuille |
US6840434B2 (en) | 2002-04-09 | 2005-01-11 | Ford Motor Company | Tin-and zinc-based solder fillers for aluminum body parts and methods of applying the same |
JP6119928B1 (ja) * | 2015-07-10 | 2017-04-26 | Jfeスチール株式会社 | 冷延鋼板およびその製造方法 |
CN111118387B (zh) * | 2019-12-13 | 2021-07-23 | 河钢乐亭钢铁有限公司 | 一种提高含硼钢连铸板坯表面质量的方法 |
CN111647821B (zh) * | 2020-07-08 | 2021-10-29 | 马鞍山钢铁股份有限公司 | 一种屈服强度550MPa级热镀锌钢板及其生产方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6345322A (ja) * | 1986-08-09 | 1988-02-26 | Sumitomo Metal Ind Ltd | ホ−ロ−用鋼板の製造方法 |
JPH03267321A (ja) * | 1990-03-16 | 1991-11-28 | Nippon Steel Corp | 深絞り用冷延鋼板の製造方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3625780A (en) * | 1968-04-29 | 1971-12-07 | Youngstown Sheet And Tube Co | Process for preparation of high-strength alloy of titanium and ferritic structure |
JPS5312899B2 (ja) * | 1971-10-26 | 1978-05-06 | ||
JPS5726124A (en) * | 1980-07-19 | 1982-02-12 | Nippon Steel Corp | Production of cold rolled steel plate of excellent sand burning hardenability |
JPS5967322A (ja) * | 1982-10-08 | 1984-04-17 | Kawasaki Steel Corp | 深絞り用冷延鋼板の製造方法 |
US5123969A (en) * | 1991-02-01 | 1992-06-23 | China Steel Corp. Ltd. | Bake-hardening cold-rolled steel sheet having dual-phase structure and process for manufacturing it |
JPH04292352A (ja) * | 1991-03-18 | 1992-10-16 | Olympus Optical Co Ltd | カード搬送装置 |
JPH0791618B2 (ja) * | 1992-09-14 | 1995-10-04 | 日本鋳鍛鋼株式会社 | 冷間加工後の一様伸びの優れている引張強度34kgf/mm2以上の熱延鋼板およびその製造方法 |
-
1993
- 1993-10-18 JP JP26024793A patent/JP3314833B2/ja not_active Expired - Lifetime
-
1994
- 1994-10-17 MY MYPI94002768A patent/MY112255A/en unknown
- 1994-10-18 WO PCT/JP1994/001752 patent/WO1995011320A1/ja active Application Filing
- 1994-10-18 DE DE19944497994 patent/DE4497994T1/de active Pending
- 1994-10-18 DE DE19944497994 patent/DE4497994C2/de not_active Expired - Lifetime
- 1994-10-18 TW TW83109664A patent/TW310345B/zh not_active IP Right Cessation
- 1994-10-18 KR KR1019950702441A patent/KR0173499B1/ko not_active IP Right Cessation
- 1994-10-18 CA CA 2151951 patent/CA2151951C/en not_active Expired - Lifetime
- 1994-10-18 GB GB9512305A patent/GB2289057B/en not_active Expired - Lifetime
- 1994-10-18 CN CN94190795A patent/CN1040776C/zh not_active Expired - Lifetime
- 1994-10-18 US US08/481,426 patent/US5558726A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6345322A (ja) * | 1986-08-09 | 1988-02-26 | Sumitomo Metal Ind Ltd | ホ−ロ−用鋼板の製造方法 |
JPH03267321A (ja) * | 1990-03-16 | 1991-11-28 | Nippon Steel Corp | 深絞り用冷延鋼板の製造方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19834361A1 (de) * | 1998-07-30 | 2000-02-03 | Schaeffler Waelzlager Ohg | Bauteil, insbesondere Wälzlager- und Motorenbauteil |
Also Published As
Publication number | Publication date |
---|---|
KR950704531A (ko) | 1995-11-20 |
KR0173499B1 (ko) | 1999-02-18 |
CA2151951A1 (en) | 1995-04-27 |
GB9512305D0 (en) | 1995-09-06 |
JPH07118795A (ja) | 1995-05-09 |
CA2151951C (en) | 1999-09-07 |
TW310345B (ja) | 1997-07-11 |
MY112255A (en) | 2001-05-31 |
DE4497994T1 (de) | 1995-12-21 |
CN1040776C (zh) | 1998-11-18 |
US5558726A (en) | 1996-09-24 |
JP3314833B2 (ja) | 2002-08-19 |
GB2289057A (en) | 1995-11-08 |
CN1115991A (zh) | 1996-01-31 |
GB2289057B (en) | 1997-04-09 |
DE4497994C2 (de) | 2001-03-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5135868B2 (ja) | 缶用鋼板およびその製造方法 | |
CN113106338B (zh) | 一种超高强度高塑性热冲压成形钢的制备方法 | |
JP7150022B2 (ja) | 加工性に優れた高強度鋼板及びその製造方法 | |
JP5825481B2 (ja) | 深絞り性および焼付硬化性に優れる高強度冷延鋼板とその製造方法 | |
WO2010011790A2 (en) | Cold rolled dual phase steel sheet having high formability and method of making the same | |
US20070181232A1 (en) | Cold rolled steel sheet and hot dipped steel sheet with superior strength and bake hardenability and method for manufacturing the steel sheets | |
CN111172466B (zh) | 一种塑性增强的抗拉强度590MPa级冷轧双相钢及其生产方法 | |
WO2022063244A1 (zh) | 一种700MPa级热成型桥壳钢及其制备方法 | |
WO1995011320A1 (fr) | Tole d'acier laminee a froid d'une excellente aptitude au façonnage, et son procede de production | |
CN107326277B (zh) | 480MPa级镀锌带钢及其生产方法 | |
JP3528716B2 (ja) | 表面性状およびプレス成形性に優れた高強度冷延鋼板、高強度亜鉛系めっき鋼板およびその製造方法 | |
JP5717631B2 (ja) | プレス成形性に優れた冷延鋼板の製造方法及び冷延鋼板 | |
CN110983197A (zh) | 800MPa级高冷弯冷轧双相钢板及其制备方法 | |
JP3918589B2 (ja) | 熱処理用鋼板およびその製造方法 | |
CN113846269B (zh) | 一种具有高强塑性冷轧高耐候钢板及其制备方法 | |
CN113025886B (zh) | 一种增强成形性冷轧退火双相钢及其制备方法 | |
CN114959481A (zh) | 高延伸率420MPa级热镀锌低合金高强钢及其生产方法 | |
JP2800541B2 (ja) | 深絞り用高強度溶融亜鉛メッキ鋼板の製造方法 | |
CN112226674B (zh) | 一种家电用耐时效冷轧热镀锌钢板及其生产方法 | |
JP2581887B2 (ja) | 冷間加工性に優れた高強度冷延鋼板およびその製造方法 | |
JPH06179922A (ja) | 深絞り用高張力薄鋼板の製造法 | |
JP3848397B2 (ja) | 高効率で且つ均一性の良い強靭厚鋼板の製造法 | |
JP7440619B2 (ja) | 均一延伸率及び加工硬化率に優れた鋼板及びその製造方法 | |
JP5549232B2 (ja) | 冷延鋼板およびその製造方法 | |
KR20100011688A (ko) | 열간 프레스 가공성이 우수한 열처리 강화형 강판 및 그제조방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CA CN DE GB KR US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 08481426 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2151951 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 9512305.5 Country of ref document: GB |
|
RET | De translation (de og part 6b) |
Ref document number: 4497994 Country of ref document: DE Date of ref document: 19951221 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 4497994 Country of ref document: DE |