CN104404398A - Preparation method of high-strength and high-toughness packing steel strip - Google Patents
Preparation method of high-strength and high-toughness packing steel strip Download PDFInfo
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- CN104404398A CN104404398A CN201410779927.XA CN201410779927A CN104404398A CN 104404398 A CN104404398 A CN 104404398A CN 201410779927 A CN201410779927 A CN 201410779927A CN 104404398 A CN104404398 A CN 104404398A
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- strength
- preparation
- steel
- temperature
- steel strip
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Classifications
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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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
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- 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
- C22C38/02—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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
Abstract
The invention discloses a preparation method of high-strength and high-toughness packing steel strip. The preparation method of the high-strength and high-toughness packing steel strip comprises the following steps: (1) selecting and preparing steel material components, wherein the selected steel material comprises the following components in percentage by weight: 0.3-0.37% of carbon, 0.05-0.08% of chromium, 0.45-0.75% of silicon, 1.53-1.75% of manganese, less than or equal to 0.19% of phosphorus, less than or equal to 0.065% of sulfur and the balance of iron; (2) smelting; (3) continuous casting; (4) descaling; (5) rolling; (6) coiling, cooling and storing the steel strip in a storehouse. The preparation method of the high-strength and high-toughness packing steel strip is simple in process and low in cost; the temperature and time for heating a steel slab are reasonably controlled and adjusted; the strength and toughness of the steel strip are effectively improved; the yield and quality of the steel strip are improved; the resource waste is effectively avoided; the prepared steel strip is stable in quality, good in property and wide in market prospect.
Description
Technical field
The present invention relates to steel band preparing technical field, particularly relate to a kind of preparation method of high-strength and high ductility steel belt for packages.
Background technology
Along with the fast development of social all trades and professions, the consumption of package steel strip is increasing, and specification of quality is also more and more higher, and high strength, high tenacity have become the inexorable trend of package steel strip development.In prior art, package steel strip often adopts hot rolling, cold rolling associating rolling technology, this complex process, cost is high, and due to the control of billet heating temperature and time unreasonable, cause the intensity of product and toughness all not to reach the service requirements of package steel strip, scrap rate is high, serious waste of resources.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of preparation method of high-strength and high ductility steel belt for packages, can solve the problems referred to above existed in existing package steel strip preparation method.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the preparation method providing a kind of high-strength and high ductility steel belt for packages, comprises the steps:
(1) steel material composition apolegamy: steel material composition and the weight percentage content thereof of selection are: carbon 0.3 ~ 0.37%, chromium 0.05 ~ 0.08%, silicon 0.45 ~ 0.75%, manganese 1.53 ~ 1.75%, phosphorus≤0.19%, sulphur≤0.065%, and surplus is iron;
(2) smelting: inserted in smelting furnace by the raw material in step (1) and be heated into molten iron, then carry out blowing argon gas process with removal of impurities, finally adds reductor and metal niobium carries out deoxidation alloying process;
(3) continuous casting: adopt the method continuous casting of full guard casting to become base the raw material after smelting in step (2);
(4) de-scaling: the blank 10 ~ 30min taking pressure as continuous casting forming in the high pressure water spraying step (2) of 18 ~ 20MPa;
(5) rolling: the blank after de-scaling in step (4) is inserted in Segmented heating stove after heating, then adopt one-pass roller technique carry out roughing, in roll and finish rolling, obtain steel band;
(6) cooling warehouse-in is batched: the cold warehouse-in of freezing air speed will be used after the steel strip coiling of roll forming in step (5).
In a preferred embodiment of the present invention, in described step (2), the temperature of described molten iron is 1300 DEG C, and the injection rate of described argon gas is 15 ~ 20m
3/ min, the winding-up time is 10 ~ 20min; Described reductor is metallic aluminium, and consumption is 5 ~ 10kg/t; The add-on of described metal niobium is 0.06 ~ 0.08% of step (1) Raw weight part.
In a preferred embodiment of the present invention, in the molten steel after described smelting, phosphorus≤0.14%, sulphur≤0.04%, temperature is 1300 ~ 1350 DEG C.
In a preferred embodiment of the present invention, in described step (3), the processing condition of described continuous casting are: middle bag liquid level 500 ~ 530mm, superheating temperature are 18%, pulling rate 1.6m/min.
In a preferred embodiment of the present invention, in described step (5), described process furnace is five-part form process furnace, and comprise preheating section, one section, two sections, three sections and soaking zone, the length of each section is identical, is 5.5m; The steel billet time be placed in stove is 2.5 ~ 3h.
In a preferred embodiment of the present invention, each section of temperature of described five-part form process furnace is: preheating section 810 ~ 840 DEG C, one section 950 ~ 1000 DEG C, two sections 1050 ~ 1150 DEG C, three sections 1210 ~ 1247 DEG C, soaking zone 1250 ~ 1260 DEG C.
In a preferred embodiment of the present invention, in described step (5), the start rolling temperature of described roughing is 1150 ~ 1200 DEG C, and the sotck thinkness after roughing is 30mm; The start rolling temperature rolled in described is 1000 ~ 1050 DEG C, and the sotck thinkness after roughing is 15mm; The start rolling temperature of described finish rolling is 950 ~ 980 DEG C, and the thickness of strips after finish rolling is 2.5 ~ 5.3mm.
In a preferred embodiment of the present invention, in described step (6), the winding rate of described steel band is 3 ~ 5m/min, and temperature when batching is 650 ~ 670 DEG C, and described fast cooling rate rate is 10 ~ 30 DEG C/s.
In a preferred embodiment of the present invention, the tensile strength of described steel band is 790 ~ 850MPa, and elongation is 28 ~ 33%.
The invention has the beneficial effects as follows: the preparation method of a kind of high-strength and high ductility steel belt for packages of the present invention, technological process is simple, cost is low, by conservative control and the Heating temperature and the time that adjust steel billet, effectively improve intensity and the toughness of product, improve yield rate and the quality of steel band, effectively prevent the wasting of resources, prepared steel band steady quality, performance is good, wide market.
Embodiment
Below preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
The embodiment of the present invention comprises:
Select the raw material of following composition and weight percentage content thereof: carbon 0.3 ~ 0.37%, chromium 0.05 ~ 0.08%, silicon 0.45 ~ 0.75%, manganese 1.53 ~ 1.75%, phosphorus≤0.19%, sulphur≤0.065%, surplus is iron; Concrete preparation process is as follows:
Embodiment 1
Smelt: the raw material chosen is inserted in smelting furnace and is heated into the molten iron that temperature is 1300 DEG C, then use argon gas with 15m
3the speed winding-up 20min of/min, to remove the impurity component in molten steel, finally add in molten steel per ton and add 5kg metallic aluminium as reductor, add again account for parts by weight of raw materials 0.08% metal niobium carry out Alloying Treatment, by in the molten steel after above-mentioned smelting, phosphorus≤0.14%, sulphur≤0.04%, temperature is 1300 ~ 1350 DEG C;
Continuous casting: adopted by the raw material after above-mentioned smelting the method continuous casting of full guard casting to become base, the processing condition of continuous casting are: middle bag liquid level 500mm, superheating temperature are 18%, pulling rate 1.6m/min;
De-scaling: the blank 30min taking pressure as the above-mentioned continuous casting forming of high pressure water hydro-peening of 18MPa;
Rolling: after the blank after de-scaling being inserted in Segmented heating stove heating, then adopt one-pass roller technique carry out roughing, in roll and finish rolling, obtain steel band; Wherein, process furnace is five-part form process furnace, and its each section of temperature and length are: preheating section 810 DEG C, one section 950 DEG C, two sections 1050 DEG C, three sections 1210 DEG C, soaking zone 1250 DEG C, and the length of each section is identical, is 5.5m, and the steel billet time be placed in stove is 2.5h; The start rolling temperature of described roughing is 1150 DEG C, and the sotck thinkness after roughing is 30mm; The start rolling temperature rolled in described is 1000 DEG C, and the sotck thinkness after roughing is 15mm; The start rolling temperature of described finish rolling is 950 DEG C, and the thickness of strips after finish rolling is 2.5mm;
Batch cooling warehouse-in: steel band shaping for the rolling is batched rolling with 5m/min under the condition of 650 DEG C, and then with freezing air with the fast cold rear warehouse-in of the speed of 10 DEG C/s.
Embodiment 2
Smelt: the raw material chosen is inserted in smelting furnace and is heated into the molten iron that temperature is 1300 DEG C, then use argon gas with 20m
3the speed winding-up 10min of/min, to remove the impurity component in molten steel, finally add in molten steel per ton and add 10kg metallic aluminium as reductor, add again account for parts by weight of raw materials 0.08% metal niobium carry out Alloying Treatment, by in the molten steel after above-mentioned smelting, phosphorus≤0.14%, sulphur≤0.04%, temperature is 1300 ~ 1350 DEG C;
Continuous casting: adopted by the raw material after above-mentioned smelting the method continuous casting of full guard casting to become base, the processing condition of continuous casting are: middle bag liquid level 530mm, superheating temperature are 18%, pulling rate 1.6m/min;
De-scaling: the blank 10min taking pressure as the above-mentioned continuous casting forming of high pressure water hydro-peening of 20MPa;
Rolling: after the blank after de-scaling being inserted in Segmented heating stove heating, then adopt one-pass roller technique carry out roughing, in roll and finish rolling, obtain steel band; Wherein, process furnace is five-part form process furnace, and its each section of temperature and length are: preheating section 840 DEG C, one section 1000 DEG C, two sections 1150 DEG C, three sections 1247 DEG C, soaking zone 1260 DEG C, and the length of each section is identical, is 5.5m, and the steel billet time be placed in stove is 3h; The start rolling temperature of described roughing is 1200 DEG C, and the sotck thinkness after roughing is 30mm; The start rolling temperature rolled in described is 1050 DEG C, and the sotck thinkness after roughing is 15mm; The start rolling temperature of described finish rolling is 980 DEG C, and the thickness of strips after finish rolling is 5.3mm;
Batch cooling warehouse-in: steel band shaping for the rolling is batched rolling with 3m/min under the condition of 670 DEG C, and then with freezing air with the fast cold rear warehouse-in of the speed of 30 DEG C/s.
The tensile strength of steel belt for packages prepared by aforesaid method is 790 ~ 850MPa, and elongation is 28 ~ 33%.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (9)
1. a preparation method for high-strength and high ductility steel belt for packages, is characterized in that, comprises the steps:
(1) steel material composition apolegamy: steel material composition and the weight percentage content thereof of selection are: carbon 0.3 ~ 0.37%, chromium 0.05 ~ 0.08%, silicon 0.45 ~ 0.75%, manganese 1.53 ~ 1.75%, phosphorus≤0.19%, sulphur≤0.065%, and surplus is iron;
(2) smelting: inserted in smelting furnace by the raw material in step (1) and be heated into molten iron, then carry out blowing argon gas process with removal of impurities, finally adds reductor and metal niobium carries out deoxidation alloying process;
(3) continuous casting: adopt the method continuous casting of full guard casting to become base the raw material after smelting in step (2);
(4) de-scaling: the blank 10 ~ 30min taking pressure as continuous casting forming in the high pressure water spraying step (2) of 18 ~ 20MPa;
(5) rolling: the blank after de-scaling in step (4) is inserted in Segmented heating stove after heating, then adopt one-pass roller technique carry out roughing, in roll and finish rolling, obtain steel band;
(6) cooling warehouse-in is batched: the cold warehouse-in of freezing air speed will be used after the steel strip coiling of roll forming in step (5).
2. the preparation method of high-strength and high ductility steel belt for packages according to claim 1, is characterized in that, in described step (2), the temperature of described molten iron is 1300 DEG C, and the injection rate of described argon gas is 15 ~ 20m
3/ min, the winding-up time is 10 ~ 20min; Described reductor is metallic aluminium, and consumption is 5 ~ 10kg/t; The add-on of described metal niobium is 0.06 ~ 0.08% of step (1) Raw weight part.
3. the preparation method of high-strength and high ductility steel belt for packages according to claim 2, is characterized in that, in the molten steel after described smelting, phosphorus≤0.14%, sulphur≤0.04%, temperature is 1300 ~ 1350 DEG C.
4. the preparation method of high-strength and high ductility steel belt for packages according to claim 1, is characterized in that, in described step (3), the processing condition of described continuous casting are: middle bag liquid level 500 ~ 530mm, superheating temperature are 18%, pulling rate 1.6m/min.
5. the preparation method of high-strength and high ductility steel belt for packages according to claim 1, is characterized in that, in described step (5), described process furnace is five-part form process furnace, comprise preheating section, one section, two sections, three sections and soaking zone, the length of each section is identical, is 5.5m; The steel billet time be placed in stove is 2.5 ~ 3h.
6. the preparation method of Bearing Steel Strip according to claim 5, it is characterized in that, each section of temperature of described five-part form process furnace is: preheating section 810 ~ 840 DEG C, one section 950 ~ 1000 DEG C, two sections 1050 ~ 1150 DEG C, three sections 1210 ~ 1247 DEG C, soaking zone 1250 ~ 1260 DEG C.
7. the preparation method of high-strength and high ductility steel belt for packages according to claim 1, is characterized in that, in described step (5), the start rolling temperature of described roughing is 1150 ~ 1200 DEG C, and the sotck thinkness after roughing is 30mm; The start rolling temperature rolled in described is 1000 ~ 1050 DEG C, and the sotck thinkness after roughing is 15mm; The start rolling temperature of described finish rolling is 950 ~ 980 DEG C, and the thickness of strips after finish rolling is 2.5 ~ 5.3mm.
8. the preparation method of high-strength and high ductility steel belt for packages according to claim 1, is characterized in that, in described step (6), the winding rate of described steel band is 3 ~ 5m/min, and temperature when batching is 650 ~ 670 DEG C, and described fast cooling rate rate is 10 ~ 30 DEG C/s.
9. according to the preparation method of the high-strength and high ductility steel belt for packages one of claim 1 to 8 Suo Shu, it is characterized in that, the tensile strength of described steel band is 790 ~ 850MPa, and elongation is 28 ~ 33%.
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| CN201410779927.XA CN104404398B (en) | 2014-12-17 | 2014-12-17 | A kind of preparation method of high-strength and high ductility steel belt for packages |
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| CN201410779927.XA CN104404398B (en) | 2014-12-17 | 2014-12-17 | A kind of preparation method of high-strength and high ductility steel belt for packages |
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| CN104404398B CN104404398B (en) | 2016-08-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107419178A (en) * | 2017-08-08 | 2017-12-01 | 鞍山发蓝股份公司 | A kind of high-intensity packing steel belt with solderability and preparation method thereof |
| CN111485180A (en) * | 2020-04-16 | 2020-08-04 | 铜陵有色金神耐磨材料有限责任公司 | Preparation method of tempered martensite wear-resistant steel ball with TiC particles precipitated in complex phase |
| CN111702010A (en) * | 2020-06-23 | 2020-09-25 | 中冶赛迪工程技术股份有限公司 | Production process of thin strip by continuous casting and rolling |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH10130721A (en) * | 1996-10-28 | 1998-05-19 | Nippon Steel Corp | Production of low yield ratio high tensile strength steel excellent in weldability and low temperature toughness |
| CN102851476A (en) * | 2012-09-14 | 2013-01-02 | 武钢集团昆明钢铁股份有限公司 | Construction-use HPB300 hot-rolled straight steel bar and preparation method thereof |
| CN103938087A (en) * | 2014-04-10 | 2014-07-23 | 铜陵南江鑫钢实业有限公司 | High strength high nickel steel material and preparation method thereof |
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2014
- 2014-12-17 CN CN201410779927.XA patent/CN104404398B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10130721A (en) * | 1996-10-28 | 1998-05-19 | Nippon Steel Corp | Production of low yield ratio high tensile strength steel excellent in weldability and low temperature toughness |
| CN102851476A (en) * | 2012-09-14 | 2013-01-02 | 武钢集团昆明钢铁股份有限公司 | Construction-use HPB300 hot-rolled straight steel bar and preparation method thereof |
| CN103938087A (en) * | 2014-04-10 | 2014-07-23 | 铜陵南江鑫钢实业有限公司 | High strength high nickel steel material and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107419178A (en) * | 2017-08-08 | 2017-12-01 | 鞍山发蓝股份公司 | A kind of high-intensity packing steel belt with solderability and preparation method thereof |
| CN107419178B (en) * | 2017-08-08 | 2019-06-04 | 鞍山发蓝股份公司 | A kind of high-intensity packing steel belt and preparation method thereof with solderability |
| CN111485180A (en) * | 2020-04-16 | 2020-08-04 | 铜陵有色金神耐磨材料有限责任公司 | Preparation method of tempered martensite wear-resistant steel ball with TiC particles precipitated in complex phase |
| CN111485180B (en) * | 2020-04-16 | 2021-08-31 | 铜陵有色金神耐磨材料有限责任公司 | Preparation method of tempered martensite wear-resistant steel ball with TiC particles precipitated in complex phase |
| CN111702010A (en) * | 2020-06-23 | 2020-09-25 | 中冶赛迪工程技术股份有限公司 | Production process of thin strip by continuous casting and rolling |
| CN111702010B (en) * | 2020-06-23 | 2022-03-11 | 中冶赛迪工程技术股份有限公司 | Production process of thin strip by continuous casting and rolling |
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Effective date of registration: 20220916 Address after: No. 8, Huaye Avenue, Dongbang Town, Changshu City, Suzhou City, Jiangsu Province 215500 Patentee after: Changshu Huaye Steel Strip Co.,Ltd. Address before: 215500 5th floor, building 4, 68 Lianfeng Road, Changfu street, Changshu City, Suzhou City, Jiangsu Province Patentee before: Changshu intellectual property operation center Co.,Ltd. |