CN108411209A - A kind of anti-corrosion and high strength concrete drums steel plate and its production method - Google Patents
A kind of anti-corrosion and high strength concrete drums steel plate and its production method Download PDFInfo
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- CN108411209A CN108411209A CN201810555612.5A CN201810555612A CN108411209A CN 108411209 A CN108411209 A CN 108411209A CN 201810555612 A CN201810555612 A CN 201810555612A CN 108411209 A CN108411209 A CN 108411209A
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- steel plate
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- high strength
- strength concrete
- concrete drums
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- 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
- 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
- C22C38/04—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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical 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 discloses a kind of anti-corrosion and high strength concrete drums steel plate and its production method, the steel plate chemical composition composition and its mass percentage are：C：0.09~0.13%, Si：0.60~0.80%, Mn：1.00~1.30%, P：0.080~0.090%, S≤0.002%, Al：0.60~0.80%, Ni：0.15~0.25%, Cu：0.20~0.50%, Cr：0.30~0.40%, surplus is Fe and inevitable impurity；The Plate Production method includes heating, rolling, cooling and aligning process.The method of the present invention improves Si, Al content, the alloying elements such as Cu, P, Cr is properly added, using TMCP rolling mill practices by reducing C content, it is ensured that the comprehensive mechanical property and corrosion resistance of steel plate, thickness are 8~30mm, are had broad application prospects.
Description
Technical field
The invention belongs to metallurgical technology fields, and in particular to a kind of anti-corrosion and high strength concrete drums steel plate and its
Production method.
Background technology
As the limitation of density, concrete stirring fortune are built concrete mixing plant in the development and urban of industrial construction
Defeated vehicle has obtained broad development, and concrete drums have also obtained high speed development as the demand of its capital equipment.And it reduces
Automobile own wt, further saves energy consumption, is the main subject matter of current auto manufacturing.The main material of country's agitator tank at present
Material be 345MPa ranks low-alloy structural steel, because intensity is relatively low, tank body and structural member are thicker, thus automobile itself compared with
Weight.Such steel grade is replaced using the higher material of intensity, is the important channel to solve the above problems.In addition, because of concrete
Agitator tank is largely in outdoor work, bad environments, while concrete per se with certain corrosive nature, so developing strong
Degree higher, wearability are more preferable, more preferably steel grade becomes the important directions that steel plate factory researches and develops to corrosion resistance.Wuyang steel has
The operating feature for limiting responsible company's synthesis concrete drums has developed a kind of anti-corrosion and high strength concrete-agitating tank body use
Steel plate and its production method improve Si, Al content, are properly added the alloying elements such as Cu, P, Cr, use by reducing C content
TMCP rolling mill practices, it is ensured that the comprehensive mechanical property and corrosion resistance of steel plate have broad application prospects.
Invention content
The technical problem to be solved in the present invention is to provide a kind of anti-corrosion and high strength concrete drums steel plates；Simultaneously originally
Invention additionally provides a kind of production method of anti-corrosion and high strength concrete drums steel plate.
In order to solve the above technical problems, the technical solution adopted by the present invention is that：A kind of anti-corrosion and high strength concrete stirring
Steel plate for tanks, the steel plate chemical composition composition and its mass percentage are：C：0.09~0.13%, Si：0.60~0.80%,
Mn：1.00~1.30%, P：0.080~0.090%, S≤0.002%, Al：0.60~0.80%, Ni：0.15~0.25%, Cu：
0.20~0.50%, Cr：0.30~0.40%, surplus is Fe and inevitable impurity.
Steel plate thickness of the present invention is 8~30mm.
Steel plate yield strength >=650MPa of the present invention, 730~930MPa of tensile strength, elongation percentage A50%≥17%。
Surface of steel plate Brinell hardness of the present invention is in 220~270HB.
The present invention also provides a kind of production method of anti-corrosion and high strength concrete drums steel plate, the producers
Method includes heating, rolling, cooling and aligning process.
Heating process of the present invention, 1170~1220 DEG C of heating temperature, 1150~1200 DEG C of soaking temperature, soaking zone are protected
Warm time >=60min, total heating time >=11min/cm.
Rolling process of the present invention, 1020~1100 DEG C of first stage start rolling temperature, percentage pass reduction are more than 10%, tire out
It is 30~50% to count reduction ratio, and each passage carries out dephosphorization, dephosphorization hydraulic pressure >=21MPa, the steel thickness that dries in the air be finished product plate thickness+30~
50mm。
Rolling process of the present invention, second stage are the finish rolling stage, and start rolling temperature is 880~950 DEG C, adds up reduction ratio
It is 50~70%, finish rolling stage first four passage carries out dephosphorization, each dephosphorization passage dephosphorization hydraulic pressure >=21MPa.
Cooling process of the present invention, rolls rear water cooling, and red temperature is 400~500 DEG C.
Aligning process of the present invention, steel plate carry out heat and rectify more than three times after rolling, straightening force >=650MPa.
Anti-corrosion and high strength concrete drums of the present invention refer to GB/T1591-2008 with plate property detection method.
It is using advantageous effect caused by above-mentioned technical proposal：1, the method for the present invention is improved by reducing C content
Si, Al content are properly added the alloying elements such as Cu, P, Cr, using TMCP rolling mill practices, it is ensured that the comprehensive mechanical property of steel plate
And corrosion resistance, have broad application prospects.2, steel plate thickness of the present invention is 8~30mm.3, steel plate yield strength of the present invention
>=650MPa, 730~930MPa of tensile strength, elongation percentage A50%≥17%.4, surface of steel plate Brinell hardness of the present invention 220~
270HB。
Specific implementation mode
With reference to specific embodiment, the present invention is described in further detail.
Embodiment 1
The present embodiment anti-corrosion and high strength concrete drums are 8mm, steel plate chemical composition composition and its quality with steel plate thickness
Percentage composition is shown in Table 1.
The present embodiment anti-corrosion and high strength concrete drums Plate Production method includes heating, rolls, cooling and strong
Straight process, specific process step are as described below：
（1）Heating process：1170 DEG C of heating temperature, 1153 DEG C of soaking temperature, total heating time 11.5min/cm, soaking zone heat preservation
Time 62min；
（2）Rolling process：1025 DEG C of first stage start rolling temperature, percentage pass reduction 10.3%, it is 41% to add up reduction ratio, each
Passage carries out dephosphorization, dephosphorization water pressure 21.8MPa, and the steel thickness that dries in the air is 55mm；905 DEG C of two-stage start rolling temperature adds up reduction ratio
It is 59%, first four passage dephosphorization, dephosphorization water pressure 24MPa；
（3）Cooling process：Rear water cooling is rolled, red temperature is 410 DEG C；
（4）Align process：Steel plate carries out heat after rolling and rectifys 4 times, straightening force 660MPa.
The present embodiment anti-corrosion and high strength concrete drums are shown in Table 2 with mechanical property of steel plate.
Embodiment 2
The present embodiment anti-corrosion and high strength concrete drums are 20mm, steel plate chemical composition composition and its quality with steel plate thickness
Percentage composition is shown in Table 1.
The present embodiment anti-corrosion and high strength concrete drums Plate Production method includes heating, rolls, cooling and strong
Straight process, specific process step are as described below：
（1）Heating process：1200 DEG C of heating temperature, 1180 DEG C of soaking temperature, total heating time 12min/cm, when soaking zone is kept the temperature
Between 67min；
（2）Rolling process：1050 DEG C of first stage start rolling temperature, percentage pass reduction 11%, it is 33%, Mei Gedao to add up reduction ratio
Secondary carry out dephosphorization, dephosphorization water pressure 22MPa, the steel thickness that dries in the air are 55mm；930 DEG C of two-stage start rolling temperature, accumulative reduction ratio are
67%, first four passage dephosphorization, dephosphorization water pressure 23MPa；
（3）Cooling process：Rear water cooling is rolled, red temperature is 450 DEG C；
（4）Align process：Steel plate carries out heat after rolling and rectifys 3 times, straightening force 680MPa.
The present embodiment anti-corrosion and high strength concrete drums are shown in Table 2 with mechanical property of steel plate.
Embodiment 3
The present embodiment anti-corrosion and high strength concrete drums are 30mm, steel plate chemical composition composition and its quality with steel plate thickness
Percentage composition is shown in Table 1.
The present embodiment anti-corrosion and high strength concrete drums Plate Production method includes heating, rolls, cooling and strong
Straight process, specific process step are as described below：
（1）Heating process：1220 DEG C of heating temperature, 1200 DEG C of soaking temperature, total heating time 12.1min/cm, soaking zone heat preservation
Time 66min；
（2）Rolling process：1100 DEG C of first stage start rolling temperature, percentage pass reduction 11.5%, it is 48% to add up reduction ratio, each
Passage carries out dephosphorization, dephosphorization water pressure 23MPa, and the steel thickness that dries in the air is 75mm；945 DEG C of two-stage start rolling temperature, accumulative reduction ratio are
52%, first four passage dephosphorization, dephosphorization water pressure 23MPa；
（3）Cooling process：Rear water cooling is rolled, red temperature is 490 DEG C；
（4）Align process：Steel plate carries out heat after rolling and rectifys 3 times, straightening force 670MPa.
The present embodiment anti-corrosion and high strength concrete drums are shown in Table 2 with mechanical property of steel plate.
Embodiment 4
The present embodiment anti-corrosion and high strength concrete drums are 15mm, steel plate chemical composition composition and its quality with steel plate thickness
Percentage composition is shown in Table 1.
The present embodiment anti-corrosion and high strength concrete drums Plate Production method includes heating, rolls, cooling and strong
Straight process, specific process step are as described below：
（1）Heating process：1180 DEG C of heating temperature, 1150 DEG C of soaking temperature, total heating time 11min/cm, when soaking zone is kept the temperature
Between 60min；
（2）Rolling process：1020 DEG C of first stage start rolling temperature, percentage pass reduction 12.5%, it is 30% to add up reduction ratio, each
Passage carries out dephosphorization, dephosphorization water pressure 21MPa, and the steel thickness that dries in the air is 65mm；880 DEG C of two-stage start rolling temperature, accumulative reduction ratio are
50%, first four passage dephosphorization, dephosphorization water pressure 21MPa；
（3）Cooling process：Rear water cooling is rolled, red temperature is 400 DEG C；
（4）Align process：Steel plate carries out heat after rolling and rectifys 4 times, straightening force 650MPa.
The present embodiment anti-corrosion and high strength concrete drums are shown in Table 2 with mechanical property of steel plate.
Embodiment 5
The present embodiment anti-corrosion and high strength concrete drums are 25mm, steel plate chemical composition composition and its quality with steel plate thickness
Percentage composition is shown in Table 1.
The present embodiment anti-corrosion and high strength concrete drums Plate Production method includes heating, rolls, cooling and strong
Straight process, specific process step are as described below：
（1）Heating process：1210 DEG C of heating temperature, 1180 DEG C of soaking temperature, total heating time 13min/cm, when soaking zone is kept the temperature
Between 63min；
（2）Rolling process：1080 DEG C of first stage start rolling temperature, percentage pass reduction 13.5%, it is 50% to add up reduction ratio, each
Passage carries out dephosphorization, dephosphorization water pressure 22MPa, and the steel thickness that dries in the air is 55mm；950 DEG C of two-stage start rolling temperature, accumulative reduction ratio are
70%, first four passage dephosphorization, dephosphorization water pressure 22.5MPa；
（3）Cooling process：Rear water cooling is rolled, red temperature is 500 DEG C；
（4）Align process：Steel plate carries out heat after rolling and rectifys 5 times, straightening force 665MPa.
The present embodiment anti-corrosion and high strength concrete drums are shown in Table 2 with mechanical property of steel plate.
1 embodiment 1-5 anti-corrosion and high strength concrete drums steel plates of table at being grouped as and content wt%
Above-mentioned concrete drums are Fe and inevitable impurity with steel plate chemical composition surplus.
The mechanical property of 2 embodiment 1-5 anti-corrosion and high strength concrete drums steel plates of table
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although with reference to above-described embodiment to the present invention into
Go detailed description, it will be understood by those of ordinary skill in the art that：It can still modify to the present invention or equally replace
It changes, without departing from the spirit or scope of the invention, or any substitutions, the right that should all cover in the present invention is wanted
It asks in range.
Claims (10)
1. a kind of anti-corrosion and high strength concrete drums steel plate, which is characterized in that steel plate chemical composition composition and its
Mass percentage is：C：0.09~0.13%, Si：0.60~0.80%, Mn：1.00~1.30%, P：0.080~0.090%, S
≤ 0.002%, Al：0.60~0.80%, Ni：0.15~0.25%, Cu：0.20~0.50%, Cr：0.30~0.40%, surplus Fe
With inevitable impurity.
2. a kind of anti-corrosion and high strength concrete drums steel plate according to claim 1, which is characterized in that the steel
Plate thickness is 8~30mm.
3. a kind of anti-corrosion and high strength concrete drums steel plate according to claim 1, which is characterized in that the steel
Plate yield strength >=650MPa, 730~930MPa of tensile strength, elongation percentage A50%≥17%。
4. a kind of anti-corrosion and high strength concrete drums steel plate according to claim 1, which is characterized in that the steel
Plate surface Brinell hardness is in 220~270HB.
5. the producer based on a kind of anti-corrosion and high strength concrete drums steel plate described in claim 1-4 any one
Method, which is characterized in that the production method includes heating, rolling, cooling and aligning process.
6. a kind of production method of anti-corrosion and high strength concrete drums steel plate according to claim 5, feature
It is, the heating process, 1170~1220 DEG C of heating temperature, 1150~1200 DEG C of soaking temperature, soaking zone soaking time >=
60min, total heating time >=11min/cm.
7. a kind of production method of anti-corrosion and high strength concrete drums steel plate according to claim 5, feature
It is, the rolling process, 1020~1100 DEG C of first stage start rolling temperature, percentage pass reduction is more than 10%, and accumulative reduction ratio is
30~50%, each passage carries out dephosphorization, dephosphorization hydraulic pressure >=21MPa, and the steel thickness that dries in the air is+30~50mm of finished product plate thickness.
8. a kind of producer of anti-corrosion and high strength concrete drums steel plate according to claim 5-7 any one
Method, which is characterized in that the rolling process, second stage are the finish rolling stage, and start rolling temperature is 880~950 DEG C, adds up reduction ratio
It is 50~70%, finish rolling stage first four passage carries out dephosphorization, each dephosphorization passage dephosphorization hydraulic pressure >=21MPa.
9. a kind of producer of anti-corrosion and high strength concrete drums steel plate according to claim 5-7 any one
Method, which is characterized in that the cooling process rolls rear water cooling, and red temperature is 400~500 DEG C.
10. a kind of production of anti-corrosion and high strength concrete drums steel plate according to claim 5-7 any one
Method, which is characterized in that the aligning process, steel plate carry out heat and rectify more than three times after rolling, straightening force >=650MPa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810555612.5A CN108411209A (en) | 2018-06-01 | 2018-06-01 | A kind of anti-corrosion and high strength concrete drums steel plate and its production method |
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| CN201810555612.5A CN108411209A (en) | 2018-06-01 | 2018-06-01 | A kind of anti-corrosion and high strength concrete drums steel plate and its production method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104662193A (en) * | 2012-09-19 | 2015-05-27 | 杰富意钢铁株式会社 | Wear-resistant steel plate having excellent low-temperature toughness and corrosion wear resistance |
| CN107109558A (en) * | 2014-11-17 | 2017-08-29 | 新日铁住金株式会社 | Drawing steel plate for tanks and its manufacture method |
| CN107513661A (en) * | 2017-08-21 | 2017-12-26 | 舞阳钢铁有限责任公司 | One kind has decay resistance wear-resisting steel plate and its production method |
| CN107630169A (en) * | 2017-08-21 | 2018-01-26 | 舞阳钢铁有限责任公司 | A kind of concrete-agitating tank body steel plate and its production method |
-
2018
- 2018-06-01 CN CN201810555612.5A patent/CN108411209A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104662193A (en) * | 2012-09-19 | 2015-05-27 | 杰富意钢铁株式会社 | Wear-resistant steel plate having excellent low-temperature toughness and corrosion wear resistance |
| CN107109558A (en) * | 2014-11-17 | 2017-08-29 | 新日铁住金株式会社 | Drawing steel plate for tanks and its manufacture method |
| CN107513661A (en) * | 2017-08-21 | 2017-12-26 | 舞阳钢铁有限责任公司 | One kind has decay resistance wear-resisting steel plate and its production method |
| CN107630169A (en) * | 2017-08-21 | 2018-01-26 | 舞阳钢铁有限责任公司 | A kind of concrete-agitating tank body steel plate and its production method |
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Application publication date: 20180817 |