CN108359891B - A kind of superhigh intensity fine steel wire wire rod and its production method - Google Patents
A kind of superhigh intensity fine steel wire wire rod and its production method Download PDFInfo
- Publication number
- CN108359891B CN108359891B CN201810147772.6A CN201810147772A CN108359891B CN 108359891 B CN108359891 B CN 108359891B CN 201810147772 A CN201810147772 A CN 201810147772A CN 108359891 B CN108359891 B CN 108359891B
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- China
- Prior art keywords
- wire rod
- wire
- superhigh intensity
- fine steel
- temperature
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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
- C22C38/02—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
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
- C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
-
- 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
- C22C38/14—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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
Abstract
A kind of superhigh intensity fine steel wire wire rod of the present invention and its production method, its chemical component wt% are as follows: C:0.88%~0.94%, Si:0.15%~0.25%, Mn:0.25%~0.50%, P≤0.015%, S≤0.010%, Al:0.0004%~0.0010%, Ti:0.0002%~0.0006%, total oxygen: 0.0015%~0.0025%, remaining is iron and inevitable impurity.Compared with prior art, the beneficial effects of the present invention are: a kind of superhigh intensity fine steel wire wire rod and its production method, it is controlled between 0.07 μm -0.10 μm using ferrite lamellar spacing in the wire rod sorbite of scheme provided by the invention production, meets user and 3 time/ton demands are not more than in the drawing of the superhigh intensity fine steel wire of 3600MPa rank and plying wire broken rate to intensity.
Description
Technical field
The present invention relates to high-carbon steel product development technical field more particularly to a kind of superhigh intensity fine steel wire wire rod and
Its production method.
Background technique
With the fast development of Domestic Automotive Industry, the demand to rubber skeleton reinforcing material is continuously increased.Superhigh intensity
Fine steel wire wire rod because while improving the safety, durability such as rubber framework material such as tire, can achieve loss of weight,
Energy-saving and environment-friendly effect, so being the steel material of metallargist's emphasis research and development.Superhigh intensity fine steel wire process is being developed,
Main research field is the segregation of wire rod, is mingled with control, tissue sorbite rate etc..With wire rod drawing diameter increasingly
Carefully, it needs to propose technical solution in terms of ferrite lamellar spacing control in wire rod Soxhlet body tissue, be added with improving the cold of wire rod
Work performance meets user to the quality requirement of high-strength fine finer wire.
The patent document of Patent No. CN201010201612.9 discloses a kind of high-carbon steel wire rod for producing finer wire,
The chemical component weight percentage of the wire rod are as follows: [C]: 0.6%~0.88%, [Si]: 0.1%~1.0%, [Mn]: 0.3%~
1.0%, [P]≤0.015%, [S]≤0.010%, [P+S]≤0.020%, [N]≤0.004%, [O]≤0.002%,
[Al]≤0.002%, [Ti]≤0.002%, [Mg]≤0.001%, other inevitable impurity are not higher than 0.1%, remaining
For iron.
Above-mentioned patent document introduces the chemical component of wire rod and the control program of field trash deformation performance, to reach
The problem of reducing wire rod process wire broken rate.But the production of 3600MPa rank extra-high strength wire wire rod is not introduced
Scheme.It according to the growth requirement of auto industry, needs to carry out wire rod process study, brings forward wire rod ferrite control skill
Art scheme meets user to the production requirement of extra-high strength wire.
Summary of the invention
The object of the present invention is to provide a kind of superhigh intensity fine steel wire wire rod and its production methods, through the invention specially
Benefit implementation, meet user to intensity the superhigh intensity fine steel wire of 3600MPa rank drawing and plying demand.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
A kind of superhigh intensity fine steel wire wire rod, chemical component wt% are as follows: C:0.88%~0.94%, Si:
0.15%~0.25%, Mn:0.25%~0.50%, P≤0.015%, S≤0.010%, Al:0.0004%~
0.0010%, Ti:0.0002%~0.0006%, total oxygen: 0.0015%~0.0025%, remaining is for iron and inevitably
Impurity.
The control of ferrite lamellar spacing is at 0.07 μm -0.10 μm in the wire rod tissue.
The present invention is suitable for high-carbon steel wire rod of the carbon content 0.88%~0.94%.Wire rod carbon content is too low not to be able to satisfy
User's steel wire drawing intensity requirement, the excessively high wire rod that will will lead to of wire rod carbon content is too fast in drawing process processing setting rate, leads
Wire rod drawing wire broken rate is caused to increase.Therefore, the invention patent carbon content control range 0.88%~0.94%.
Silicon is main deoxidant element in high-carbon steel.Silicone content is low in steel will lead to steel-deoxidizing deficiency, and billet surface forms needle
The casting blank defects such as hole bubble；Silicone content is excessively high in steel, will appear coarse silicate inclusion after deoxygenation of liquid steel.Element silicon is iron
Ferritic intensified element improves ferritic intensity, reduces ferritic deformation performance, is unfavorable for mentioning for wire rod cold-forming property
It is high.Therefore, silicone content is controlled 0.15%~0.25% in the invention patent steel.
Manganese is also a kind of element for improving wire rod intensity；But manganese element is more serious in the segregation of process of setting, it is unfavorable
In the cold-forming property for improving wire rod.Therefore manganese content is controlled 0.25%~0.50% in steel.
Phosphorus, sulphur are objectionable impurities elements in steel, more lower better in the case where not causing other influences.The invention patent
It is required that wire rod P≤0.015%, S≤0.010%.
Aluminium titanium is all stronger deoxidant element, and too high levels will will lead to the appearance of the indeformable field trash of high-melting-point in steel, drop
Main frame cold-forming property；But too low aluminium Ti content is unfavorable for controlling steel inclusion ingredient, reduces what oxide was mingled with
Deformation performance.Therefore the aluminium content control of wire rod is 0.0004%~0.0010%, Ti content control 0.0002%~
0.0006%.
The control of total oxygen content in wire rod is similar with aluminium content, thus the total oxygen content control of wire rod 0.0015%~
0.0025%.
A kind of production method of superhigh intensity fine steel wire wire rod, includes the following steps:
1) heating steel billet: the steel billet cross sectional dimensions specification that production wire rod uses are as follows: (150mm~160mm) × (150mm
~160mm), the total time inside furnace of heating steel billet 2.5~3 hours, soaking section temperature is at 1050 DEG C~1090 DEG C；
2) rolling temperature: rolled piece goes out pre- final rolling temperature control at 980 DEG C~1020 DEG C, enters final rolling temperature 940 DEG C~980
DEG C, enter Dual module rolling mill temperature at 900 DEG C~940 DEG C；
3) laying temperature: wire rod spins diameter as 5.0mm~6.0mm, and wire rod laying temperature is controlled at 870 DEG C~890 DEG C；
4) wire rod is cooling: wire rod is cooled down on air-cooled roller-way after spinning, cooling velocity control 15 DEG C/s~25 DEG C/
s。
Compared with prior art, the beneficial effects of the present invention are:
A kind of superhigh intensity fine steel wire wire rod and its production method, the wire rod produced using scheme provided by the invention
In sorbite ferrite lamellar spacing control 0.07 μm -0.10 μm between, meet user to intensity 3600MPa rank superelevation
The drawing of intensity fine steel wire and plying wire broken rate are not more than 3 time/ton demands.
Specific embodiment
Below with reference to embodiment, specific embodiments of the present invention will be further explained:
A kind of superhigh intensity fine steel wire wire rod, chemical component wt% are as follows: C:0.88%~0.94%, Si:
0.15%~0.25%, Mn:0.25%~0.50%, P≤0.015%, S≤0.010%, Al:0.0004%~
0.0010%, Ti:0.0002%~0.0006%, total oxygen: 0.0015%~0.0025%, remaining for iron and inevitably it is miscellaneous
Matter.
A kind of production method of superhigh intensity fine steel wire wire rod, includes the following steps:
1) heating steel billet: the steel billet cross sectional dimensions specification that production wire rod uses are as follows: (150mm~160mm) × (150mm
~160mm), the total time inside furnace of heating steel billet 2.5~3 hours, soaking section temperature is at 1050 DEG C~1090 DEG C；Pass through steel billet height
Temperature diffusion, reduces the element segregations such as carbon, manganese；
2) rolling temperature: rolled piece goes out pre- final rolling temperature control at 980 DEG C~1020 DEG C, enters final rolling temperature 940 DEG C~980
DEG C,
Enter Dual module rolling mill temperature at 900 DEG C~940 DEG C；By gradually reducing rolled piece temperature, for wire rod spinning, establish in rolls
Fixed basis.
3) laying temperature: wire rod spins diameter as 5.0mm~6.0mm, and wire rod laying temperature is controlled at 870 DEG C~890 DEG C；
It is spun by wire rod higher temperature, is laid the foundation to reduce the cooling velocity of wire rod.
4) wire rod is cooling: wire rod is cooled down on air-cooled roller-way after spinning, cooling velocity control 15 DEG C/s~25 DEG C/
s；The cooling velocity for being suitable for after being spun by wire rod makes have thicker ferrite lamella in wire rod Soxhlet body tissue, utilizes iron
The higher feature of ferritic deformability improves the whole cold-forming property of wire rod.
5) wire rod organizational controls: by above-mentioned measure make in wire rod tissue the control of ferrite lamellar spacing 0.07 μm-
0.10μm.Make wire rod that there is good cold-forming property.
Table 1 is 4 embodiments of the invention:
Table 1:
Claims (1)
1. a kind of production method of superhigh intensity fine steel wire wire rod, which is characterized in that superhigh intensity fine steel wire wire rod
Its chemical component wt% are as follows: C:0.89%~0.94%, Si:0.15%~0.25%, Mn:0.25%~0.50%, P≤
0.015%, S≤0.010%, Al:0.0004%~0.0010%, Ti:0.0002%~0.0006%, total oxygen: 0.0015%
~0.0025%, remaining is iron and inevitable impurity；The production method of superhigh intensity fine steel wire wire rod, including it is as follows
Step:
1) heating steel billet: the steel billet cross sectional dimensions specification that production wire rod uses are as follows: (150mm~160mm) × (150mm~
160mm), the total time inside furnace of heating steel billet 2.5~3 hours, soaking section temperature is at 1050 DEG C~1090 DEG C；
2) rolling temperature: rolled piece goes out pre- final rolling temperature control at 980 DEG C~1020 DEG C, enters 940 DEG C~980 DEG C of final rolling temperature, enters
Dual module rolling mill temperature is at 900 DEG C~940 DEG C；
3) laying temperature: wire rod spins diameter as 5.0mm~6.0mm, and wire rod laying temperature is controlled at 870 DEG C~890 DEG C；
4) wire rod is cooling: wire rod is cooled down on air-cooled roller-way after spinning, and cooling velocity is controlled in 15 DEG C/s~25 DEG C/s；
The control of ferrite lamellar spacing is at 0.07 μm -0.10 μm in the wire rod tissue.
Priority Applications (1)
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| CN201810147772.6A CN108359891B (en) | 2018-02-13 | 2018-02-13 | A kind of superhigh intensity fine steel wire wire rod and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810147772.6A CN108359891B (en) | 2018-02-13 | 2018-02-13 | A kind of superhigh intensity fine steel wire wire rod and its production method |
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| Publication Number | Publication Date |
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| CN108359891A CN108359891A (en) | 2018-08-03 |
| CN108359891B true CN108359891B (en) | 2019-09-20 |
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| CN110029270A (en) * | 2019-04-02 | 2019-07-19 | 鞍钢股份有限公司 | A kind of high-carbon steel wire rod that exempting from pickling dephosphorization and its production method |
| CN111850400B (en) * | 2020-07-07 | 2022-07-22 | 鞍钢股份有限公司 | Control method for net-shaped cementite of steel wire rod for ultrahigh carbon cold drawing |
| CN115161559B (en) * | 2022-07-12 | 2024-04-16 | 鞍钢股份有限公司 | Torsion fracture resistant ultra-high strength steel wire, wire rod for steel wire and manufacturing process |
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| CN102268596B (en) * | 2010-06-07 | 2013-12-11 | 鞍钢股份有限公司 | High carbon steel wire rod for producing thin steel wire |
| CN102953005B (en) * | 2011-08-19 | 2015-07-08 | 鞍钢股份有限公司 | High-carbon and low-alloy steel wire rod for producing fine steel wires, and its manufacturing method |
| CN103882306B (en) * | 2012-12-21 | 2016-01-20 | 鞍钢股份有限公司 | A kind of fine cut steel wire wire rod and production method thereof |
| CN106475432A (en) * | 2015-08-31 | 2017-03-08 | 鞍钢股份有限公司 | A kind of high-carbon steel wire rod being suitable to fine steel wire drawing and iron scale control method |
| CN106591700B (en) * | 2016-12-05 | 2018-07-17 | 邢台钢铁有限责任公司 | High intensity cutting steel wire gren rod and its production method |
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