CN110257703A - Production method of thin-gauge high-strength container steel plate - Google Patents
Production method of thin-gauge high-strength container steel plate Download PDFInfo
- Publication number
- CN110257703A CN110257703A CN201910555092.2A CN201910555092A CN110257703A CN 110257703 A CN110257703 A CN 110257703A CN 201910555092 A CN201910555092 A CN 201910555092A CN 110257703 A CN110257703 A CN 110257703A
- Authority
- CN
- China
- Prior art keywords
- steel plate
- temperature
- continuous casting
- casting billet
- thin gauge
- 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.)
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 31
- 239000010959 steel Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 5
- 238000009749 continuous casting Methods 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000003723 Smelting Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000007670 refining Methods 0.000 claims description 4
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 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
- C21D8/0221—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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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 Steel (AREA)
Abstract
The invention relates to a thin high-strength container steel plate and a production method thereof, wherein the steel plate comprises the following chemical components in percentage by mass: c: 0.06% -0.08%, Si: 0.35-0.45%, Mn: 0.55-0.65%, Cr: 0.40% -0.50%, Als: 0.015 to 0.045 percent, 0.08 to 0.12 percent of Ni, 0.21 to 0.31 percent of Cu, 0.065 to 0.085 percent of Ti, less than or equal to 0.020 percent of impurity element P, less than or equal to 0.006 percent of S, and the balance of Fe and inevitable impurities. The high-strength container with high yield strength and good extensibility is obtained by the method, wherein the yield strength is 550-700MPa, and the extensibility is 18-25%.
Description
Technical field
The present invention relates to a kind of container steel production technical field more particularly to a kind of thin gauge High Strength Container steel plates
Production method.
Background technique
The specific gravity that China railways Container Transport accounts for the total volume of goods transported of railway lags behind western developed country significantly: container dress
Standby scarce capacity；International class's column operation tissue shortage is planned as a whole, bargaining negotiation is done things in his own way, the return source of goods is generally insufficient；Excessively according to
Rely subsidy, the not high outstanding problem of Market Orientation；Container Transport is information-based, networking degree is low, lacks the information of standard
Platform.It is horizontal in order to improve China railways Container Transport, it promotes development, railway parent company proposes to greatly develop railway packaging
Case.Currently, 1580 lines did not carried out the exploitation of such steel grade also, it is therefore necessary to carry out corresponding research, meet railway container
With the market demand of steel.In view of reducing Container Transport cost and improving the factor of conevying efficiency, steel for container plate thickness
Usually 2.0mm hereinafter, yield strength in 450MPa or more.
Summary of the invention
In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a kind of productions of thin gauge High Strength Container steel plate
Method realizes the production of the thin gauge container steel plate of continuous casting and rolling technique of sheet bar production, by carrying out to container ingredient
It optimizes and revises, improves production efficiency, improve the lumber recovery of container steel plate.
To achieve the above object, the invention is realized by the following technical scheme:
A kind of production method of thin gauge High Strength Container steel plate, the chemical component composition and its quality percentage of the steel plate
Content are as follows: C:0.06%~0.08%, Si:0.35%~0.45%, Mn:0.55%~0.65%, Cr:0.40%~
0.50%, Als:0.015%~0.045%, Ni:0.08%~0.12%, Cu:0.21%~0.31%, Ti:0.065%~
0.085%, impurity element P≤0.020% and S≤0.006%, surplus are Fe and inevitable impurity.
Its production method the following steps are included:
1) make steel: using converter smelting, external refining is simultaneously casting continuously to form base, control continuous casting billet with a thickness of 190~210mm；
2) it heats: continuous casting billet being heated, is kept the temperature, control continuous casting billet tapping temperature is 1210~1270 DEG C；
3) high-pressure water descaling de-scaling: is carried out to the continuous casting billet after heating；
4) thick, finish rolling: thick, finish rolling is all made of inlet of rolling mill high-pressure water descaling, and roughing rolls 5~6 passages, roughing outlet temperature
1070~1130 DEG C of degree；Finish rolling start rolling temperature is >=1070 DEG C, rolls 5~10 passages, finished product target thickness is in 2.5mm or less
When, insulation cover is put into, finishing temperature is 860~920 DEG C；
5) batch: steel plate goes out after finishing mill using leading portion laminar flow cooling technology, controls 30 DEG C/s~80 of laminar flow cooling velocity
DEG C/s, thin gauge strip batched after section cooling, and control coiling temperature is 610~660 DEG C.
Compared with prior art, the beneficial effects of the present invention are:
1, the high-strength container with high-yield strength and good extension property is obtained using the method for the present invention, steel plate is thick
Degree is usually 2.0mm hereinafter, wherein yield strength is 550-700Mpa, elongation percentage 18%-25%.
2, cost of investment, the operation cost for reducing foundation construction, make railway container reach quality, performance and cost etc.
The optimization of factor.
3, by the exploitation of high-strength container steel, the lightweight of container and means of transport, Lifting Convey effect are pushed
Rate.
Specific embodiment
The present invention is described in detail below, it should be noted that implementation of the invention embodiment party not limited to the following
Formula.
Specific thin gauge High Strength Container Plate Production method, comprising the following steps:
1) the chemical component composition of steel plate: C:0.06%~0.08%, Si:0.35%~0.45%, Mn:0.55%~
0.65%, Cr:0.40%~0.50%, Als:0.015%~0.045%, Ni:0.08%~0.12%, Cu:0.21%~
0.31%, Ti:0.065%~0.085%, impurity element P≤0.020% and S≤0.006%, surplus is for Fe and unavoidably
Impurity.
2) make steel: using converter smelting, external refining is simultaneously casting continuously to form base, control continuous casting billet with a thickness of 190~210mm；
3) it heats: continuous casting billet being heated, is kept the temperature, control continuous casting billet tapping temperature is 1210~1270 DEG C；
4) high-pressure water descaling de-scaling: is carried out to the continuous casting billet after heating；
5) coarse-fine to roll: coarse-fine roll is all made of high-pressure water descaling, roughing 5~6 passages of rolling, and roughing outlet temperature 1070~
1130℃；Finish rolling start rolling temperature is >=1070 DEG C, rolls 5~10 passages, and finished product target thickness in 2.5mm or less, protect by investment
Temperature cover, finishing temperature are 860~920 DEG C；
6) batch: steel plate goes out after finishing mill using leading portion laminar flow cooling technology, controls 30 DEG C/s~80 of laminar flow cooling velocity
DEG C/s, thin gauge strip batched after section cooling, and control coiling temperature is 610~660 DEG C.
Embodiment:
Thin gauge High Strength Container Plate Production method, comprising the following steps:
1) the chemical component composition of steel plate: C:0.063%~0.68%, Si:0.41%~0.45%, Mn:0.60%~
0.65%, Cr:0.45%~0.50%, Als:0.015%~0.045%, Ni:0.10%~0.12%, Cu:0.21%~
0.25%, Ti:0.069%~0.076%
1) make steel: using converter smelting, external refining is simultaneously casting continuously to form base, control continuous casting billet with a thickness of 200mm；
2) it heats: continuous casting billet being heated, is kept the temperature, control continuous casting billet tapping temperature is 1240~1260 DEG C；
3) high-pressure water descaling de-scaling: is carried out to the continuous casting billet after heating；
4) coarse-fine to roll: coarse-fine roll is all made of high-pressure water descaling, and roughing rolls 6 passages, roughing outlet temperature 1100~1120
℃；Finish rolling start rolling temperature is >=1100 DEG C, rolls 7 passages, and finished product target thickness puts into insulation cover, finish to gauge in 2.5mm or less
Temperature is 880~900 DEG C；
5) batch: steel plate goes out after finishing mill using leading portion laminar flow cooling technology, controls 60 DEG C/s of laminar flow cooling velocity, thin rule
Lattice (1.6mm or less) strip is batched after section cooling, and control coiling temperature is 640~660 DEG C.
Finished steel plate advantage:
1) container light-weight design: thin gauge High Strength Container steel plate is mainly used for top plate and the side of seavan
Plate, it is therefore an objective to reduce container body weight, improve freight traffic.Yield strength is 550-600Mpa, elongation percentage 22%-
25%.
2) corrosion resistance of container plate is improved.
Claims (2)
1. a kind of thin gauge High Strength Container steel plate, which is characterized in that the chemical component of the steel plate forms and its quality percentage
Content are as follows: C:0.06%~0.08%, Si:0.35%~0.45%, Mn:0.55%~0.65%, Cr:0.40%~
0.50%, Als:0.015%~0.045%, Ni:0.08%~0.12%, Cu:0.21%~0.31%, Ti:0.065%~
0.085%, impurity element P≤0.020% and S≤0.006%, surplus are Fe and inevitable impurity.
2. a kind of production method of thin gauge High Strength Container steel plate according to claim 1, which is characterized in that including with
Lower step:
1) make steel: using converter smelting, external refining is simultaneously casting continuously to form base, control continuous casting billet with a thickness of 190~210mm；
2) it heats: continuous casting billet being heated, is kept the temperature, control continuous casting billet tapping temperature is 1210~1270 DEG C；
3) high-pressure water descaling de-scaling: is carried out to the continuous casting billet after heating；
4) thick, finish rolling: thick, finish rolling is all made of inlet of rolling mill high-pressure water descaling, and roughing rolls 5~6 passages, roughing outlet temperature
1070~1130 DEG C；Finish rolling start rolling temperature be >=1070 DEG C, roll 5~10 passages, finished product target thickness in 2.5mm or less,
Insulation cover is put into, finishing temperature is 860~920 DEG C；
5) batch: steel plate goes out after finishing mill using leading portion laminar flow cooling technology, controls 30 DEG C/s~80 DEG C of laminar flow cooling velocity/s,
Thin gauge strip is batched after section cooling, and control coiling temperature is 610~660 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555092.2A CN110257703A (en) | 2019-06-25 | 2019-06-25 | Production method of thin-gauge high-strength container steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555092.2A CN110257703A (en) | 2019-06-25 | 2019-06-25 | Production method of thin-gauge high-strength container steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110257703A true CN110257703A (en) | 2019-09-20 |
Family
ID=67921402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910555092.2A Pending CN110257703A (en) | 2019-06-25 | 2019-06-25 | Production method of thin-gauge high-strength container steel plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN110257703A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747393A (en) * | 2019-09-30 | 2020-02-04 | 鞍钢股份有限公司 | High-strength steel plate of ATM (automatic teller machine) and manufacturing method thereof |
| CN110983155A (en) * | 2019-11-07 | 2020-04-10 | 包头钢铁（集团）有限责任公司 | Rare earth treated corrosion-resistant steel belt for railway carriage and preparation method thereof |
| CN112063920A (en) * | 2020-08-06 | 2020-12-11 | 湖南华菱涟钢薄板有限公司 | Thin container plate and preparation method thereof |
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| CN105088071A (en) * | 2015-08-24 | 2015-11-25 | 河北钢铁股份有限公司承德分公司 | Ultrathin-specification broad hot strip with tensile strength as 600MPa and producing method thereof |
| CN106734201A (en) * | 2016-12-27 | 2017-05-31 | 中冶南方工程技术有限公司 | A kind of method that application continuous casting and rolling technique of sheet bar produces Thin Specs low-alloy high-strength steel |
| CN107557678A (en) * | 2016-06-30 | 2018-01-09 | 鞍钢股份有限公司 | Low-cost weather-resistant steel for 550 MPa-grade hot-rolled container and manufacturing method thereof |
| CN107779740A (en) * | 2016-08-26 | 2018-03-09 | 鞍钢股份有限公司 | Atmospheric corrosion resistant hot rolled steel strip with yield strength of 700MPa and manufacturing method thereof |
| CN108396234A (en) * | 2017-02-05 | 2018-08-14 | 鞍钢股份有限公司 | Production method of EH460 marine container crack arrest steel plate |
-
2019
- 2019-06-25 CN CN201910555092.2A patent/CN110257703A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105088071A (en) * | 2015-08-24 | 2015-11-25 | 河北钢铁股份有限公司承德分公司 | Ultrathin-specification broad hot strip with tensile strength as 600MPa and producing method thereof |
| CN107557678A (en) * | 2016-06-30 | 2018-01-09 | 鞍钢股份有限公司 | Low-cost weather-resistant steel for 550 MPa-grade hot-rolled container and manufacturing method thereof |
| CN107779740A (en) * | 2016-08-26 | 2018-03-09 | 鞍钢股份有限公司 | Atmospheric corrosion resistant hot rolled steel strip with yield strength of 700MPa and manufacturing method thereof |
| CN106734201A (en) * | 2016-12-27 | 2017-05-31 | 中冶南方工程技术有限公司 | A kind of method that application continuous casting and rolling technique of sheet bar produces Thin Specs low-alloy high-strength steel |
| CN108396234A (en) * | 2017-02-05 | 2018-08-14 | 鞍钢股份有限公司 | Production method of EH460 marine container crack arrest steel plate |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747393A (en) * | 2019-09-30 | 2020-02-04 | 鞍钢股份有限公司 | High-strength steel plate of ATM (automatic teller machine) and manufacturing method thereof |
| CN110983155A (en) * | 2019-11-07 | 2020-04-10 | 包头钢铁（集团）有限责任公司 | Rare earth treated corrosion-resistant steel belt for railway carriage and preparation method thereof |
| CN112063920A (en) * | 2020-08-06 | 2020-12-11 | 湖南华菱涟钢薄板有限公司 | Thin container plate and preparation method thereof |
| CN112063920B (en) * | 2020-08-06 | 2021-12-24 | 湖南华菱涟钢特种新材料有限公司 | Thin container plate and preparation method thereof |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20190920 |