CN110042300A - Wire rod for 400 MPa-grade weather-resistant stud, production method and prepared stud - Google Patents
Wire rod for 400 MPa-grade weather-resistant stud, production method and prepared stud Download PDFInfo
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- CN110042300A CN110042300A CN201910261633.0A CN201910261633A CN110042300A CN 110042300 A CN110042300 A CN 110042300A CN 201910261633 A CN201910261633 A CN 201910261633A CN 110042300 A CN110042300 A CN 110042300A
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- temperature
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 35
- 238000009987 spinning Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000005096 rolling process Methods 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 39
- 239000010959 steel Substances 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000004615 ingredient Substances 0.000 claims description 5
- 229910001563 bainite Inorganic materials 0.000 claims description 4
- 229910000734 martensite Inorganic materials 0.000 claims description 4
- 229910001562 pearlite Inorganic materials 0.000 claims description 4
- 229910000859 α-Fe Inorganic materials 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 14
- 229910001209 Low-carbon steel Inorganic materials 0.000 abstract description 2
- 238000003723 Smelting Methods 0.000 abstract description 2
- 238000009749 continuous casting Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 239000011651 chromium Substances 0.000 description 6
- 239000011572 manganese Substances 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 229910000870 Weathering steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000007704 transition Effects 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
- C21D8/06—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
- C22C38/02—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
-
- 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
- C21D2211/002—Bainite
-
- 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
-
- 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
- C21D2211/009—Pearlite
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention provides a wire rod for a 400 MPa-grade weather-resistant stud, a production method and a prepared stud, wherein the wire rod comprises the following components in percentage by weight: [C] 0.06% -0.10%, [ Si ] 0.15% -0.25%, [ Mn ] 0.30% -0.50%, [ P ] less than or equal to 0.020%, [ S ] less than or equal to 0.015%, [ Al ] 0.02% -0.06%, [ Ni ] 0.45% -0.65%, [ Cr ] 0.30% -0.60%, [ Cu ] 0.20% -0.40%, and [ Ti ] 0.005% -0.030%; the balance of iron and inevitable impurities; the production method comprises smelting, continuous casting, billet heating, rolling, spinning and cooling; the stud produced by the low-carbon steel wire rod has obvious weather resistance, the yield strength is not lower than 400MPa, and meanwhile, the good welding performance is kept.
Description
Technical field
The invention belongs to metal material field more particularly to a kind of 400MPa grades of weather-proof peg wire rods and its producer
Method.
Background technique
Peg is electric arc stud welding socket cap weldering nail (English Cheese head studs for arc stud
Welding abbreviation) belongs to a kind of fastener of high-intensitive rigidity connection, is used in various structural steelworks, in different connections
Stiff assembly connection function is played in part, is suitable for high-rise steel skeleton structure building, industrial factory building, highway, railway, bridge, tower
Frame, automobile, the energy, means of transportation building, airport, station, power station, support of pipelines, hoisting machinery and other all kinds of steel constructions etc.
Engineering.
The existing national standards of peg use national standard GB/T 10433-2002, all kinds of knots suitable for civil construction project
The shearing-resistant member of structure, built-in fitting and anchoring piece.GB/T10433-2002 non-equivalent adoption international standard ISO13918:1998 " welding
Electric arc stud welding stud and magnet ring ", SD type cutting member (weldering nail) and Japanese Industrial Standards' JIS B1198-1995 " socket cap
Weldering nail ".The electric arc stud welding of Ф 10mm~Ф 25mm various specifications model is welded with socket cap and is followed closely, material SWRCH15A, ML15Al
Or ML15.
In steel construction, since peg can effectively transmit shearing force, all it must be provided in many occasions.But
With the continuous expansion of weathering steel materials'use range in recent years, the material of peg faces new problem.Base material is changed to weather-proof
After steel, the corrosion resistance gap of base material and peg increases, and with the extension of active time, destruction will be from peg and base material
Engaging portion occur, if the connection of peg and base material is destroyed, the shearing force between different connectors can not be transmitted, and will be led
Cause whole building structural damage.Therefore in order to adapt to the variation of steel construction quality of parent material, it is necessary to develop a kind of weather-proof peg
Material, since peg is distinctly claimed intensity and welding performance, how peg material to be made to obtain weather resistance
It keeps enough intensity and good solderability to become simultaneously and develops the project that this material must solve.400MPa is wide at present
Therefore the peg intensity rank of general application should develop material needed for meeting the weather-proof peg of 400MPa rank first.
Summary of the invention
A kind of 400MPa grades of weather-proof peg wire rod, life are provided it is an object of the invention to overcome the above problem and deficiency
Production method and the peg of preparation, having significant weather resistance using the peg of low-carbon steel rod bundle of the present invention production, (I index is not small
In 6.0), yield strength is not less than 400MPa, while keeping good welding performance (Ce < 0.4).
It is of the invention and purpose is achieved in that
A kind of 400MPa grades of weather-proof peg wire rod, the wire rod ingredient are as follows by weight percentage: [C] 0.06%~
0.10%, [Si] 0.15%~0.25%, [Mn] 0.30%~0.50%, [P]≤0.020%, [S]≤0.015%, [Al]
0.02%~0.06%, [Ni] 0.45%~0.65%, [Cr] 0.30%~0.60%, [Cu] 0.20%~0.40%, [Ti]
0.005%~0.030%；Surplus is iron and inevitable impurity；
And the above each element should meet the requirement of formula (1) and formula (2) when setting concrete content simultaneously,
I=26.01 [Cu]+3.88 [Ni]+1.2 [Cr]+1.49 [Si]+17.28 [P]
-7.29[Cu][Ni]-9.1[Ni][P]-33.39[Cu]2≥6.0 (1)
Ce=[C]+[Mn]/6+ ([Cr]+[Mo]+[V])/5+ ([Ni]+[Cu])/15 < 0.40 (2).
The wire rod tissue is made of ferrite, pearlite, bainite and martensite, by areal calculation content of pearlite in alloy
5%-10%, bainite content 5%-15%, martensite content are no more than 1.5%, and the ferrite grain size is in 25-35um
Between.
It is as follows that present component designs reason:
Carbon is the main intensified element in steel, in order to make peg have enough intensity, it is necessary to be retained centainly in steel
Carbon.Meanwhile the raising of carbon will affect the welding performance of peg, therefore carbon content is unsuitable excessively high, therefore the present invention is special
Sharp carbon content control range 0.06%~0.10%.
Silicon is main deoxidant element in high-carbon steel.Silicone content is low in steel will lead to steel-deoxidizing deficiency, and steel billet shows to form needle
The casting blank defects such as hole bubble；Silicone content is excessively high in steel, will appear coarse silicate and sundries after deoxygenation of liquid steel.Meanwhile silicon contains
Measure the excessively high welding performance that can deteriorate peg.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 excessively high, is unfavorable for the control of carbon equivalent, butt welding
It is unfavorable to connect performance.Therefore manganese content is controlled 0.30%~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]≤0.020%, [S]≤0.015%.
Aluminium is stronger deoxidant element, and too high levels deteriorate the morphotropism that will lead to steel inclusion；But contain in steel
A certain amount of aluminium, it is ensured that the abundant deoxidation of molten steel, while being conducive to the structure refinement of steel, therefore the aluminium content control of wire rod exists
0.02%~0.06%.
Nickel, chromium, copper are typical corrosion-resistant elements, it is therefore necessary to which adding a certain amount just can make material acquisition enough resistance to
Corrosive nature.But nickel, chromium, copper content are excessively high unfavorable to welding performance, therefore it is required that corresponding constituent content in wire rod are as follows:
[Ni] 0.45%~0.65%, [Cr] 0.30%~0.60%, [Cu] 0.20%~0.40%.
Titanium is easily formed the carbonitride of small and dispersed in steel, steel can be improved with anchoring crystal boundary, refinement crystal grain
Intensity.For weather-proof peg material, in order to make material that there is enough corrosion resistances, it is necessary to reduce carbon, the manganese in steel
Content to bring difficulty to the intensity requirement for meeting peg, therefore is added titanium and is strengthened.On the other hand, the addition of titanium
Amount excessively will not bring additional intensity to increase, and will lead to the increase of cost, therefore it is required that [Ti] 0.005%~
0.030%.
The two of technical solution of the present invention are to provide a kind of production method of 400MPa grades of weather-proof peg wire rod, including smelting
Refining-continuous casting-heating steel billet-rolling-spinning-cooling；
(1) heating steel billet: the purpose of heating steel billet is to make the abundant austenitizing of steel billet, reduces the resistance of deformation of steel billet, makes
Wire rod rolling process is gone on smoothly.In the present invention, the steel billet cross sectional dimensions specification of production wire rod use are as follows: (150mm~
160mm) × (150mm~160mm), the total time inside furnace of heating steel billet 2.5~3 hours, soaking section temperature is 950 DEG C~1040
℃；
(2) rolling temperature: since the cooling capacity on high-speed rod-rolling mill production line is limited, operation of rolling temperature is carried out
Control can for it is subsequent enter bimodulus deblocking temperature and laying temperature control create conditions, in order to realize weather-proof peg steel wire rod
Structure refinement, the present invention claims rolled pieces to go out pre- final rolling temperature control at 870 DEG C~890 DEG C, enters bimodulus deblocking temperature 860 DEG C~880
℃；
(3) laying temperature: the laying temperature of wire rod directly affects the cooling velocity and phase transition process of subsequent wire rod, the present invention
The wire rod spinning diameter is 10.0mm~25.0mm, and requiring wire rod spinning diameter is 10.0mm~25.0mm, wire rod spinning
Temperature is controlled at 860 DEG C~880 DEG C；
(4) wire rod is cooling: using air-cooled or EDC cooling, (EDC is cooling to refer to that first water cooled rear continuous dissipate of hot rolling wire rolls up leaching
Enter On-line Control cooling method cooling in hot water storgae, that is, dissipate volume hot bath method)；
Air-cooled: initial roller table speed 0.15-0.25m/min, wire rod are averaged cooling rate control in 1.5 DEG C/s~4 DEG C/s；
EDC is cooling: wire rod first passes around EDC water-bath cooling, initial roller table speed 0.45-0.75m/min, wire rod after spinning
520-580 DEG C of leaving water temperature, air-cooled after water outlet, average cooling rate control is in 1.5 DEG C/s~4 DEG C/s.
In the case where laying temperature is certain, the type of cooling and cooling velocity of wire rod directly affect wire rod in each phase region
Residence time and organizational composition.Group can be carried out using the traditional air-cooled technique of stelmor or EDC technique in the present invention
Control is knitted, the difference of the two is that the more mature cost of air-cooled technique is lower, and it is cold that wire rod can be improved using EDC technical cooling
But uniformity coefficient improves tissue homogeneous degree, to improve the stable mechanical property of finished product peg.To obtain ideal tissue,
Wire rod is averaged cooling rate control in 1.5 DEG C/s~4 DEG C/s.Air-cooled technique mainly passes through blower frequency and roller table speed control is cooling strong
Degree；
In EDC technique, initial roller table speed mainly influences residence time of the wire rod in water bath, and then controls final
Wire rod leaving water temperature.It is air-cooled primarily to control wire rod temperature, makes wire rod have suitable group texture after wire rod water outlet
At.
When using air-cooled technique in the present invention, initial roller table speed 0.15-0.25m/min, 4 framves before blower frequency
1400Hz, other sorties 1000Hz, wire rod are averaged cooling rate control in 1.5 DEG C/s~4 DEG C/s.
EDC water-bath cooling, initial roller table speed 0.45-0.75m/ are first passed around using wire rod after spinning when EDC technique
Min, 520-580 DEG C of wire rod leaving water temperature is air-cooled after water outlet, and continuous 4 frame blower frequency is 1000Hz after water outlet, and wire rod is average cold
Speed control is in 1.5 DEG C/s~4 DEG C/s.
A kind of 400MPa grades of weather-proof peg is made through wire rod drawing, jumping-up using the wire rod as raw material, is become in drawing
Wire rod draft is 8%-15% during shape.
The beneficial effects of the present invention are the present invention is designed by reasonable ingredient, is rolled in conjunction with V-N steel and low temperature
System and cooling technique make wire rod under the premise of meeting peg to solderability requirement, have taken into account requirement of the peg to weather resistance,
The weather-resistant steel plate for allowing to be growing with the country use scope is used cooperatively, meanwhile, it is produced using wire rod of the present invention
When weather-proof peg, it is only necessary to pass through lesser drawing deformation, the yield strength of peg can be made not less than 400MPa, meeting bolt
Reduce user's processing capacity while nail is to intensity requirement, improves the safety of peg.
Specific embodiment
Below by embodiment, the present invention is further illustrated.
The embodiment of the present invention carries out smelting-continuous casting-heating steel billet-rolling-spinning-according to the component proportion of technical solution
It is cooling；
(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 950 DEG C~1040 DEG C；
(2) rolling temperature: rolled piece goes out pre- final rolling temperature control at 870 DEG C~890 DEG C, enters bimodulus deblocking temperature 860 DEG C~880
℃；
(3) laying temperature: wire rod spinning diameter is 10.0mm~25.0mm, ask wire rod spinning diameter be 10.0mm~
25.0mm, wire rod laying temperature are controlled at 860 DEG C~880 DEG C；
(4) wire rod is cooling: cooling using air-cooled or EDC；
Air-cooled: initial roller table speed 0.15-0.25m/min, wire rod are averaged cooling rate control in 1.5 DEG C/s~4 DEG C/s；
EDC is cooling: wire rod first passes around EDC water-bath cooling, initial roller table speed 0.45-0.75m/min, wire rod after spinning
520-580 DEG C of leaving water temperature, air-cooled after water outlet, average cooling rate control is in 1.5 DEG C/s~4 DEG C/s.
A kind of 400MPa grades of weather-proof peg is made through wire rod drawing, jumping-up using the wire rod as raw material, is become in drawing
Wire rod draft is 8%-15% during shape.
The ingredient of wire rod of the embodiment of the present invention is shown in Table 1.The main technologic parameters of wire rod of the embodiment of the present invention are shown in Table 2.This hair
The tissue and performance of bright embodiment wire rod and peg are shown in Table 3.
The ingredient (wt%) of 1 wire rod of the embodiment of the present invention of table
| Embodiment | C | Si | Mn | P | S | Al | Ni | Cr | Cu | Ti | I index | Ce |
| 1 | 0.08 | 0.21 | 0.42 | 0.019 | 0.006 | 0.045 | 0.52 | 0.42 | 0.38 | 0.019 | 6.69 | 0.29 |
| 2 | 0.09 | 0.19 | 0.38 | 0.015 | 0.008 | 0.024 | 0.5 | 0.32 | 0.35 | 0.023 | 6.54 | 0.27 |
| 3 | 0.06 | 0.23 | 0.45 | 0.016 | 0.012 | 0.038 | 0.56 | 0.41 | 0.22 | 0.018 | 6.41 | 0.27 |
| 4 | 0.07 | 0.2 | 0.36 | 0.012 | 0.009 | 0.046 | 0.58 | 0.49 | 0.29 | 0.021 | 6.79 | 0.29 |
| 5 | 0.06 | 0.24 | 0.49 | 0.013 | 0.008 | 0.054 | 0.63 | 0.54 | 0.33 | 0.026 | 7.03 | 0.31 |
| 6 | 0.1 | 0.16 | 0.32 | 0.01 | 0.008 | 0.022 | 0.46 | 0.38 | 0.36 | 0.007 | 6.44 | 0.28 |
| 7 | 0.08 | 0.15 | 0.4 | 0.012 | 0.009 | 0.026 | 0.49 | 0.58 | 0.21 | 0.009 | 6.21 | 0.31 |
| 8 | 0.07 | 0.2 | 0.35 | 0.011 | 0.011 | 0.029 | 0.57 | 0.35 | 0.36 | 0.013 | 6.60 | 0.26 |
| 9 | 0.07 | 0.19 | 0.39 | 0.009 | 0.01 | 0.021 | 0.52 | 0.42 | 0.29 | 0.008 | 6.55 | 0.27 |
Remarks: I index is the index for representing material resistance to corrosion, it is considered that I index material at 6.0 or more has
Preferable corrosion resistance；The carbon equivalent empirical equation that Ce recommends according to International Welding association calculates, and when Ce < 0.40 represents welding
Property is excellent.
The main technologic parameters of 2 wire rod of the embodiment of the present invention of table
The tissue and performance of 3 wire rod of the embodiment of the present invention of table and peg
In order to state the present invention, explanation appropriately and is being sufficiently carried out to the present invention by embodiment among the above, it is above
Embodiment is merely to illustrate the present invention, and not limitation of the present invention, those of ordinary skill in related technical field, not
In the case where being detached from the spirit and scope of the present invention, it can also make a variety of changes and modification, made any modification are equally replaced
It changes, improve, should all be included in the protection scope of the present invention, scope of patent protection of the invention should be limited by claim
It is fixed.
Claims (4)
1. a kind of 400MPa grades of weather-proof peg wire rod, which is characterized in that the wire rod ingredient is as follows by weight percentage:
[C] 0.06%~0.10%, [Si] 0.15%~0.25%, [Mn] 0.30%~0.50%, [P]≤0.020%, [S]≤
0.015%, [Al] 0.02%~0.06%, [Ni] 0.45%~0.65%, [Cr] 0.30%~0.60%, [Cu] 0.20%~
0.40%, [Ti] 0.005%~0.030%；Surplus is iron and inevitable impurity；
And the above each element should meet the requirement of formula (1) and formula (2) when setting concrete content simultaneously,
I=26.01 [Cu]+3.88 [Ni]+1.2 [Cr]+1.49 [Si]+17.28 [P]
-7.29[Cu][Ni]-9.1[Ni][P]-33.39[Cu]2≥6.0 (1)
Ce=[C]+[Mn]/6+ ([Cr]+[Mo]+[V])/5+ ([Ni]+[Cu])/15 < 0.40 (2).
2. a kind of 400MPa grades of weather-proof peg wire rods according to claim 1, which is characterized in that the wire rod tissue by
Ferrite, pearlite, bainite and martensite composition, by areal calculation content of pearlite in alloy 5%-10%, bainite content 5%-
15%, martensite content is no more than 1.5%, and the ferrite grain size is between 25-35um.
3. a kind of a kind of working system of 400MPa grades of weather-proof peg disk as claimed in claim 1 or 2, including smelting-continuous casting-
Heating steel billet-rolling-spinning-cooling；It is characterized in that；
(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 950 DEG C~1040 DEG C；
(2) rolling temperature: rolled piece goes out pre- final rolling temperature control at 870 DEG C~890 DEG C, enters 860 DEG C~880 DEG C of bimodulus deblocking temperature；
(3) laying temperature: wire rod spinning diameter is 10.0mm~25.0mm, ask wire rod spinning diameter be 10.0mm~
25.0mm, wire rod laying temperature are controlled at 860 DEG C~880 DEG C；
(4) wire rod is cooling: cooling using air-cooled or EDC；
Air-cooled: initial roller table speed 0.15-0.25m/min, wire rod are averaged cooling rate control in 1.5 DEG C/s~4 DEG C/s；
EDC is cooling: wire rod first passes around EDC water-bath cooling, initial roller table speed 0.45-0.75m/min, wire rod water outlet after spinning
520-580 DEG C of temperature, air-cooled after water outlet, average cooling rate control is in 1.5 DEG C/s~4 DEG C/s.
4. a kind of 400MPa grades of weather-proof peg is raw material through wire rod drawing, upsetting using the described in any item wire rods of claim 1-3
Crude, wire rod draft is 8%-15% during drawing deformation.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305416A (en) * | 2022-08-17 | 2022-11-08 | 广东桂鑫钢铁有限公司 | Steel bar and preparation method thereof |
| CN116397159A (en) * | 2022-12-21 | 2023-07-07 | 本钢板材股份有限公司 | Steel H08MnSiCuCrNi II for gas-shielded welding wire and production and preparation method thereof |
| CN116497263A (en) * | 2023-03-09 | 2023-07-28 | 包头钢铁（集团）有限责任公司 | Production method of annealing-free weather-resistant wire rod for welding wire steel of vehicle |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660099A (en) * | 2009-10-16 | 2010-03-03 | 江苏省沙钢钢铁研究院有限公司 | High-strength low-alloy hot-rolled ferrite bainite weathering steel and production method thereof |
| CN102168229A (en) * | 2010-02-25 | 2011-08-31 | 宝山钢铁股份有限公司 | Weather resistant steel plate and manufacturing method thereof |
| CN103103458A (en) * | 2013-02-17 | 2013-05-15 | 武汉钢铁(集团)公司 | High strength weathering resistant steel and preparation method |
| CN103741057A (en) * | 2014-01-26 | 2014-04-23 | 北京科技大学 | Steel plate with low density and high marine environment resistance and production technology thereof |
| CN106435360A (en) * | 2016-10-25 | 2017-02-22 | 武汉科技大学 | High-strength, high-toughness, corrosion-resistant and weather-resistant steel plate and manufacturing method thereof |
| CN106947913A (en) * | 2017-03-21 | 2017-07-14 | 马钢(集团)控股有限公司 | A kind of high-strength high-toughness hot rolls weather-resistant steel plate and preparation method thereof |
| CN108359890A (en) * | 2018-02-13 | 2018-08-03 | 鞍钢股份有限公司 | Wire rod for ultrahigh conductive steel wire and production process thereof |
| CN108486466A (en) * | 2018-04-23 | 2018-09-04 | 马钢(集团)控股有限公司 | A kind of yield strength 550MPa grade high ductility weather-resistant steel plates and preparation method thereof |
| CN108531808A (en) * | 2018-05-07 | 2018-09-14 | 武汉钢铁有限公司 | A kind of the low yield ratio weathering resistant structural steel for bridge and production method of yield strength >=690MPa |
-
2019
- 2019-04-02 CN CN201910261633.0A patent/CN110042300B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660099A (en) * | 2009-10-16 | 2010-03-03 | 江苏省沙钢钢铁研究院有限公司 | High-strength low-alloy hot-rolled ferrite bainite weathering steel and production method thereof |
| CN102168229A (en) * | 2010-02-25 | 2011-08-31 | 宝山钢铁股份有限公司 | Weather resistant steel plate and manufacturing method thereof |
| CN103103458A (en) * | 2013-02-17 | 2013-05-15 | 武汉钢铁(集团)公司 | High strength weathering resistant steel and preparation method |
| CN103741057A (en) * | 2014-01-26 | 2014-04-23 | 北京科技大学 | Steel plate with low density and high marine environment resistance and production technology thereof |
| CN106435360A (en) * | 2016-10-25 | 2017-02-22 | 武汉科技大学 | High-strength, high-toughness, corrosion-resistant and weather-resistant steel plate and manufacturing method thereof |
| CN106947913A (en) * | 2017-03-21 | 2017-07-14 | 马钢(集团)控股有限公司 | A kind of high-strength high-toughness hot rolls weather-resistant steel plate and preparation method thereof |
| CN108359890A (en) * | 2018-02-13 | 2018-08-03 | 鞍钢股份有限公司 | Wire rod for ultrahigh conductive steel wire and production process thereof |
| CN108486466A (en) * | 2018-04-23 | 2018-09-04 | 马钢(集团)控股有限公司 | A kind of yield strength 550MPa grade high ductility weather-resistant steel plates and preparation method thereof |
| CN108531808A (en) * | 2018-05-07 | 2018-09-14 | 武汉钢铁有限公司 | A kind of the low yield ratio weathering resistant structural steel for bridge and production method of yield strength >=690MPa |
Non-Patent Citations (1)
| Title |
|---|
| 强十涌: "《高速轧机线材生产》", 30 June 2009, 冶金工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305416A (en) * | 2022-08-17 | 2022-11-08 | 广东桂鑫钢铁有限公司 | Steel bar and preparation method thereof |
| CN116397159A (en) * | 2022-12-21 | 2023-07-07 | 本钢板材股份有限公司 | Steel H08MnSiCuCrNi II for gas-shielded welding wire and production and preparation method thereof |
| CN116497263A (en) * | 2023-03-09 | 2023-07-28 | 包头钢铁（集团）有限责任公司 | Production method of annealing-free weather-resistant wire rod for welding wire steel of vehicle |
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