CN105880941A - Stainless steel wire for fatigue-resistant bridge pull sling - Google Patents
Stainless steel wire for fatigue-resistant bridge pull sling Download PDFInfo
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- CN105880941A CN105880941A CN201610273721.9A CN201610273721A CN105880941A CN 105880941 A CN105880941 A CN 105880941A CN 201610273721 A CN201610273721 A CN 201610273721A CN 105880941 A CN105880941 A CN 105880941A
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- steel
- steel wire
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- pull sling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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Abstract
The invention discloses a stainless steel wire for a fatigue-resistant bridge pull sling. The stainless steel wire includes smaller than or equal to 0.12% of C, smaller than or equal to 1.00% of Si, 14.0%-19.0% of Mn, smaller than or equal to 0.06% of P, smaller than or equal to 0.01% of S, 18.0%-22.0% of Cr, 1.0%-2.0% of Ni, 0.45%-0.65% of N and the balance iron and inevitable impurities. The stainless steel wire is prepared according to the following steps that A, steel blank smelting is performed; B, steel blank heating is performed; C, steel blank rolling is performed; D, silking is performed; E, cooling is performed; F, heat treatment is performed; G, acid pickling is performed, and a steel wire rod subjected to acid pickling is obtained; and H, cold drawing is performed, and the stainless steel wire is obtained. In the step C, the diameter of the steel wire rod is 6.5 mm. The diameter of the stainless steel wire is 5.7 mm. According to the cold drawing, the steel wire rod subjected to acid pickling is subjected to one-pass cold drawing so that the stainless steel wire with the diameter being 5.7 mm is obtained.
Description
Technical field
The present invention relates to a kind of rustless steel steel wire, particularly to a kind of endurance bridge pull sling rustless steel steel wire.
Background technology
Draw the advantages such as hoist cable bridge is elegant in appearance with it, and span ability is big, be widely used, but disease frequency in recent years
Sending out, trace it to its cause, tradition draws hoist cable to use high-strength carbon steel wire or steel strand wires, and its structure is the most very thin, and long
Phase is under high-stress state, encroaches on more sensitive to external world, along with the growth of service life, progressively exposes anticorrosion
The diseases such as layer is aging, corrosion, fracture of wire, severe patient occurs drawing hoist cable to rupture, and causes bridge collapse accident.Data from investigation
Show, draw hoist cable bridge to change the rope cycle at present and be generally 5～20 years, much smaller than design life.The world is each at present
The corrective measure that state takes mainly is set about, from the point of view of practical application effect in terms of lasso protection material, cable body structure etc.
The most very good, a new resolving ideas is to utilize stainless steel silk to replace high-strength carbon steel wire, makes full use of rustless steel
The premium properties such as anti-corrosion, wear-resisting, high-strength, thus thoroughly solve to draw sling steel wire this persistent ailment of corrosion disease.
Chinese invention patent CN102534424A discloses rustless steel, bridge pull sling rustless steel steel wire and preparation side thereof
Method and application, this bridge pull sling rustless steel steel wire has preferable decay resistance while improving intensity.
In CN102534424A, the performance of the bridge pull sling rustless steel steel wire TQS-1 of embodiment 1 is best.
As drawing the rustless steel of hoist cable materials application, on the premise of meeting rustless property, corrosion resistance, also should have excellent
Different mechanical property and processing performance.
Summary of the invention
The technical problem to be solved is how to improve the mechanical property of bridge pull sling rustless steel steel wire, tired
Labor performance and processing performance.Keep higher-strength (Proof strength of non-proportional (Rp), tensile strength (Rm) and
Bridge pull sling plasticity, fatigue behaviour and the processing performance of rustless steel steel wire is improved while decay resistance.
In order to solve above technical problem, present invention provide for preparing the rustless steel steel wire of bridge pull sling.
Rustless steel steel wire provided by the present invention, by percentage to the quality, containing following compositions:
C :≤0.12%；
Si :≤1.00%；
Mn:14.0-19.0%；
P≤0.06%；
S≤0.01%；
Cr:18.0-22.0%；
Ni:1.0-2.0%；
N:0.45-0.65%；
Surplus is ferrum and inevitable impurity；
Described rustless steel steel wire is prepared according to the method comprised the steps:
A, smelting steel billet；
B, heating steel billet；
C, billet rolling, obtain steel wire rod；
D, weave silk；
E, cooling；
F, heat treatment；
G, pickling, obtain steel wire rod after pickling；
H, cold-drawn, obtain rustless steel steel wire；
Wherein, in described C, a diameter of 6.5mm of steel wire rod；Described rustless steel gauge of wire is 5.7mm；
Described cold-drawn is steel wire rod after described pickling to be carried out a time cold-drawn obtain the rustless steel steel of a diameter of 5.7mm
Silk.
In above-mentioned F, described heat treatment temperature can be 1000 DEG C, and heat treatment time can be 1.5 hours.
In above-mentioned B, described billet heating temperature can be 1260 DEG C, and the heating steel billet time is 3.5 hours.
Described rustless steel steel wire concretely following rustless steel steel wire: by percentage to the quality, containing following compositions: C:
0.10%, Si:0.30%, Mn:14.45%, P:0.035%, S:0.006%, Cr:18.30%,
Ni:1.10%, N:0.5%, remaining is Fe and inevitable impurity.
In above-mentioned rustless steel steel wire, described smelting steel billet includes:
(1) electric furnace smelting: steel scrap and nickel and alloy are added electric furnace and smelts, treats that in electric furnace, crude molten steel chemistry becomes
Dividing tapping when reaching following standard, obtaining the first weight/mass percentage composition making steel water: C is 1.30-1.80% (such as 1.30%),
The weight/mass percentage composition of Mn is 8.5-12.5% (such as 10.0%), and the weight/mass percentage composition of P is less than or equal to 0.028%, S's
Weight/mass percentage composition is less than or equal to 0.025%, and the weight/mass percentage composition of Cr is 17.0-22.0% (such as 18.0%), Ni's
Weight/mass percentage composition is 1.0-2.0% (such as 1.0%)；
(2) argon oxygen decarburizing furnace refine: described just steel-making water is first carried out the smelting heat of oxidation, after carry out reduction period smelting,
Add slag former after reduction and carry out slag making, and add tapping after target component is finely adjusted by fine setting composition, obtain refine
Molten steel；Wherein, the heat of oxidation, smelting was blown into mixed gas, and described mixed gas is by N2And O2According to (2-4): 1 (as
Volume ratio composition 3:1)；Reduction period is omnidistance nitrogen blowing smelting in smelting；
(3) use continuous casting working procedure casting steel billet, obtain steel billet；
In described (1), alloy is ferrochrome and ferromanganese.
In above-mentioned rustless steel steel wire, according to 800-1200m in smelting the described heat of oxidation3/ h is (such as 900m3/ h) flow velocity
It is blown into described mixed gas；According to 400-600m in the smelting of described reduction period3/ h is (such as 500m3/ h) flow velocity nitrogen blowing.
In above-mentioned rustless steel steel wire, during described reduction period is smelted, add ferrosilicon and aluminum, described ferrosilicon and the mass ratio of aluminum
For (5-12): 1, such as 9:1.
In above-mentioned rustless steel steel wire, described ferrochrome concretely high carbon ferro-chrome, the percent mass of the C of described high carbon ferro-chrome
Content can be 4%-8%, such as 6.7%；Described ferromanganese can be high carbon ferromanganese, and the percent mass of the C of described high carbon ferromanganese contains
Amount can be 2%-8%, such as 7.5%.
In above-mentioned rustless steel steel wire, described slag former can be Calx and fluorite；Described slag former specifically can be by Calx and firefly
Stone is according to (2-6): the mass ratio composition of 1 (such as 10:3).
In above-mentioned rustless steel steel wire, described fine setting composition can be the alloy containing manganese, nitrogen and chromium or metal, such as manganese and nitridation
Ferrochrome.Described fine setting composition specifically can be made up of manganese and nitrided ferro-chromium, and the mass ratio of manganese and nitrided ferro-chromium can be 8:3.
In above-mentioned rustless steel steel wire, described pickling nitration mixture is carried out, described nitration mixture be by nitric acid, Fluohydric acid. and water according to
The solution of the volume ratio composition of 4:4:92.
The application in preparation bridge pull sling of any of the above-described kind of rustless steel steel wire and as bridge pull sling with stainless
Application in steel steel wire belongs to protection scope of the present invention.
The bridge pull sling of present invention TQS-1 in rustless steel steel wire GQS-1 and GQS-2 and CN102534424A
Compare, keeping higher-strength (Proof strength of non-proportional (Rp), tensile strength (Rm)), rigidity (springform
Amount (E)) and decay resistance while raising the bridge pull sling stress relaxation ability of rustless steel steel wire, fatigability
Can be with processing performance (plastic deformation ability).The bridge pull sling of embodiment 1 rustless steel steel wire GQS-1 and embodiment
The bridge pull sling of the 2 elongation after fracture A of rustless steel steel wire GQS-2250It is all that the bridge pull sling of comparative example 1 is not with
2.3 times of rust steel steel wire, the bridge pull sling rustless steel steel wire GQS-1 of embodiment 1 and the bridge of embodiment 2 draw
The stress relaxation rate of hoist cable rustless steel steel wire GQS-2 is all the bridge pull sling rustless steel steel wire of comparative example 1
0.6 times, the bridge pull sling rustless steel steel wire GQS-1 of embodiment 1 and the bridge pull sling of embodiment 2 are with stainless
Steel steel wire GQS-2 fatigue strength is all 1.7 times of the bridge pull sling rustless steel steel wire of comparative example 1.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further described in detail, the embodiment be given only for
Illustrate the present invention rather than in order to limit the scope of the present invention.Experimental technique in following embodiment, as without special
Illustrate, be conventional method.Material used in following embodiment, reagent etc., if no special instructions, all can be from
Commercial sources obtains.
Below the composition of the various alloys used in following embodiment and comparative example and relevant apparatus is illustrated:
High carbon ferro-chrome, by percentage to the quality, forms as follows: Cr 67%, C 6.7%, Si 1.8%,
P 0.02%, S 0.026%, surplus is ferrum and inevitable impurity；
High carbon ferromanganese, by percentage to the quality, forms as follows: Mn 78%, C 7.5%, Si 0.30%,
P 0.16%, S 0.03%, surplus is ferrum and inevitable impurity；
Metallic nickel, by percentage to the quality, forms as follows: Ni 99.9%, and surplus is inevitable impurity；
Ferrosilicon, by percentage to the quality, forms as follows: Si 75%, Al 1.3%, Ca 0.8%, P 0.023%,
S 0.018%, C 0.09%, surplus is ferrum and inevitable impurity；
Aluminum shot, by percentage to the quality, forms as follows: Al 99.5%, Fe 0.15%, Si 0.10%, Cu
0.01%, Ca 0.01%, Mg 0.03%, surplus is inevitable impurity；
Calx, by percentage to the quality, forms as follows: CaO 90%, SiO22.1%, P 0.012%, S 0.085%,
MgO 3.5%, surplus is inevitable impurity；
Fluorite, by percentage to the quality, forms as follows: CaF285%, SiO212%, P 0.032%, S 0.12%,
Surplus is inevitable impurity；
Nitrided ferro-chromium by percentage to the quality, forms as follows: Cr 64.6%, C 0.03%, N 8.45%, P
0.023%, S 0.027%, Si 0.81%, surplus is ferrum and inevitable impurity；
Manganese metal by percentage to the quality, forms as follows: C 0.01%, Si 0.002%, P 0.005%, S
0.03%, Mn 99.8%, surplus is inevitable impurity；
The model of conticaster: R8m, manufacturer is: Da Nieli Automation Co., Ltd；
Withdrawal straightening machine model: LZ, Wuxi City Ge Ma Machinery Co., Ltd..
The preparation of rustless steel steel wire TQS-1 of comparative example 1, bridge pull sling
This bridge pull sling rustless steel steel wire TQS-1 is in Chinese invention patent CN102534424A in embodiment 1
Bridge pull sling rustless steel steel wire, by percentage to the quality, containing following compositions: C:0.10%, Si:
0.30%, Mn:14.45%, P:0.035%, S:0.006%, Cr:18.30%, Ni:1.10%,
N:0.5%, remaining is Fe and inevitable impurity.
Its concrete preparation method is as follows:
A: smelt steel billet
1) electric furnace smelting
Addition raw material in electric furnace: steel scrap 15.7 tons, high carbon ferro-chrome 5.8 tons, high carbon ferromanganese 2.6 tons, metal
0.5 ton of nickel, adds electrification clear, makes electric furnace crude molten steel chemical composition control roughly at carbon 1.30% after adding above-mentioned substance,
P≤0.028%, S≤0.025%, tap when Cr:18.0%, Ni:1.0%, Mn:10.0%,
Obtain first water of making steel；Each stove guarantee will empty only, prevent from causing the fluctuation of Cr, Ni composition, in tapping
Time scratch clean slag, measure slag thickness 50mm in ladle.
2) argon oxygen decarburizing furnace refine
Just steel-making water obtained above is transferred to refine on argon oxygen decarburizing furnace, and the heat of oxidation of refine is blown into mixed gas,
This mixed gas is by N2And O2Form according to the volume ratio of 3:1, this mixed gas always amount of being blown into 900m3/ h (i.e. this mixing
The flow velocity of gas is 900m3/ h), reduction period whole process nitrogen blowing is smelted thereafter, is blown into nitrogen amount 500m3/ h (i.e. nitrogen
Flow velocity be 500m3/ h), add ferrosilicon 45kg/t, aluminum shot 5kg/t reduce, and add Calx 10kg/t,
Fluorite 3.0kg/t, slag making, reduction period is dividedly in some parts manganese metal 800kg altogether, based on nitrogen recovery 50%, adds nitrogen
Change ferrochrome 300kg regulation nitrogen content and carry out trimming, make nitrogen content reach 0.65%-0.68%, then press
Low discharge 55m3After/h nitrogen blowing is stirred 3 minutes, measuring each component content in molten steel is: C:0.10%,
Si:0.30%, Mn:14.45%, P:0.035%, S:0.006%, Cr:18.30%, Ni:
1.10%, N:0.5%, remaining is Fe and inevitable impurity, and rear direct tapping obtains refined molten steel；
Measure slag in ladle thick: 160mm.Wherein add ferrosilicon 45kg/t, aluminum shot 5kg/t and Calx 10kg/t, fluorite
3.0kg/t, refers to add ferrosilicon 45kg, aluminum shot 5kg, Calx 10kg, the ratio of fluorite 3.0kg in raw material per ton
Add ferrosilicon, aluminum shot, Calx and fluorite.
3) continuous casting working procedure: continuous casting working procedure is completed by conticaster, process is: first will be equipped with the good molten steel of refine (essence
Steel-making water) ladle be transported to rotary table, after rotary table turns to pouring position, molten steel is injected tundish, middle
The molten steel of bag is assigned to each crystallizer by the mouth of a river, and the foundry goods in crystallizer is drawn by withdrawal straightening machine with crystallizing vibration device
Go out, after cooled, electromagnetic agitation, cut slab.Wherein, the fusing point of molten steel in refining ladle: 1405 DEG C；
The temperature of tundish: 1430 DEG C；The specification of the rustless steel steel billet that continuous casting obtains: 220mm (thick) × 220mm (wide)；
The pulling rate of withdrawal straightening machine is 0.6m/min；Tundish immersed nozzle insertion depth is 135mm.
B: heating steel billet
The rustless steel steel billet obtained is heated to 1280 DEG C in sealed heating furnace, is incubated 2 hours.
C: billet rolling
On rustless steel high-speed rod-rolling mill, rustless steel billet rolling after heating is become the rustless steel of a diameter of 6.5mm
Wire rod.
D: weave silk
STAINLESS STEEL WIRE is rolled into the coil of strip that internal diameter is 1150mm by Laying head.
E: cooling
STAINLESS STEEL WIRE volume after weaving silk on the cooling roller bed of transportation is cooled to room temperature.
F: heat treatment
As above the STAINLESS STEEL WIRE obtained is put in heat-treatment furnace and carry out heat treatment, heat treatment temperature 1100 DEG C, protect
Temperature 1.5 hours, water-cooled of coming out of the stove.
G: pickling
By the STAINLESS STEEL WIRE mass concentration after heat treatment be 15% nitric acid be that 5% Fluohydric acid. is made into mass concentration
Acid carry out pickling and obtain STAINLESS STEEL WIRE finished product, its a diameter of 6.5mm.
H: cold-drawn
The STAINLESS STEEL WIRE finished product of a diameter of 6.5mm is carried out two passages by 6.5mm → 5.5mm → 5.0mm
Cold-drawn obtains the bridge pull sling rustless steel steel wire of a diameter of 5.0mm.By this bridge pull sling rustless steel steel wire
Named TQS-1.Above-mentioned two passage cold-drawns refer to first be carried out by the STAINLESS STEEL WIRE finished product of a diameter of 6.5mm together
Secondary cold-drawn obtains the STAINLESS STEEL WIRE of a diameter of 5.5mm, then is carried out by the STAINLESS STEEL WIRE of a diameter of 5.5mm together
Secondary cold-drawn obtains the STAINLESS STEEL WIRE of a diameter of 5.0mm, and the STAINLESS STEEL WIRE of this diameter of 5.0mm is bridge and draws
Hoist cable rustless steel steel wire TQS-1.
The preparation of rustless steel steel wire GQS-1 of embodiment 1, bridge pull sling
This bridge pull sling rustless steel steel wire GQS-1, by percentage to the quality, containing following compositions: C:0.10%,
Si:0.30%, Mn:14.45%, P:0.035%, S:0.006%, Cr:18.30%, Ni:
1.10%, N:0.5%, remaining is Fe and inevitable impurity.
Preparation method and comparative example 1 Bridge of this bridge pull sling rustless steel steel wire GQS-1 draw hoist cable rustless steel
The preparation method of steel wire TQS-1 differ only in B: heating steel billet, F: heat treatment, G: pickling and H: cold
Pull out this four steps.The concrete preparation method of this bridge pull sling rustless steel steel wire GQS-1 is as follows:
A: smelt steel billet
With comparative example 1.
B: heating steel billet
The rustless steel steel billet obtained is heated to 1260 DEG C in sealed heating furnace, is incubated 3.5 hours.
C: billet rolling
With comparative example 1.
D: weave silk
With comparative example 1.
E: cooling
With comparative example 1.
F: heat treatment
As above the STAINLESS STEEL WIRE obtained is put in heat-treatment furnace and carry out heat treatment, heat treatment temperature 1000 DEG C, protect
Temperature 1.5 hours, water-cooled of coming out of the stove.
G: pickling
STAINLESS STEEL WIRE nitration mixture after heat treatment being carried out pickling, obtains STAINLESS STEEL WIRE finished product, it is a diameter of
6.5mm.The solution that described nitration mixture is made up of according to the volume ratio of 4:4:92 nitric acid, Fluohydric acid. and water.
H: cold-drawn
By 6.5mm → 5.6mm, the STAINLESS STEEL WIRE finished product of a diameter of 6.5mm is carried out a time cold-drawn obtain directly
Footpath is the bridge pull sling rustless steel steel wire of 5.6mm.By named for this bridge pull sling rustless steel steel wire
GQS-1。
The preparation of rustless steel steel wire GQS-2 of embodiment 2, bridge pull sling
This bridge pull sling rustless steel steel wire GQS-2, by percentage to the quality, containing following compositions: C:0.10%,
Si:0.30%, Mn:14.45%, P:0.035%, S:0.006%, Cr:18.30%, Ni:
1.10%, N:0.5%, remaining is Fe and inevitable impurity.
Preparation method and comparative example 1 Bridge of this bridge pull sling rustless steel steel wire GQS-2 draw hoist cable rustless steel
The preparation method of steel wire TQS-1 differ only in B: heating steel billet, F: heat treatment, G: pickling and H: cold
Pull out this four steps.Bridge in the preparation method of this bridge pull sling rustless steel steel wire GQS-2 and embodiment 1 draws and hangs
The preparation method of rope rustless steel steel wire GQS-1 differ only in this step of H: cold-drawn.This bridge pull sling
Concrete preparation method with rustless steel steel wire GQS-2 is as follows:
A: smelt steel billet
With comparative example 1.
B: heating steel billet
With embodiment 1.
C: billet rolling
With comparative example 1.
D: weave silk
With comparative example 1.
E: cooling
With comparative example 1.
F: heat treatment
With embodiment 1.
G: pickling
With embodiment 1.
H: cold-drawn
By 6.5mm → 5.7mm, the STAINLESS STEEL WIRE finished product of a diameter of 6.5mm is carried out a time cold-drawn obtain directly
Footpath is the bridge pull sling rustless steel steel wire of 5.7mm.By named for this bridge pull sling rustless steel steel wire
GQS-2。
The preparation of rustless steel steel wire DQS-1 of comparative example 2, bridge pull sling
This bridge pull sling rustless steel steel wire DQS-1, by percentage to the quality, containing following compositions: C:0.10%,
Si:0.30%, Mn:14.45%, P:0.035%, S:0.006%, Cr:18.30%, Ni:
1.10%, N:0.5%, remaining is Fe and inevitable impurity.
Bridge pull sling in the preparation method of this bridge pull sling rustless steel steel wire DQS-1 and embodiment 1 is with stainless
The preparation method of steel steel wire GQS-1 differ only in this step of H: cold-drawn.This bridge pull sling rustless steel
The concrete preparation method of steel wire DQS-1 is as follows:
A: smelt steel billet
With comparative example 1.
B: heating steel billet
With embodiment 1.
C: billet rolling
With comparative example 1.
D: weave silk
With comparative example 1.
E: cooling
With comparative example 1.
F: heat treatment
With embodiment 1.
G: pickling
With embodiment 1.
H: cold-drawn
By 6.5mm → 5.5mm, the STAINLESS STEEL WIRE finished product of a diameter of 6.5mm is carried out a time cold-drawn obtain directly
Footpath is the bridge pull sling rustless steel steel wire of 5.5mm.By named for this bridge pull sling rustless steel steel wire
DQS-1。
The preparation of rustless steel steel wire DQS-2 of comparative example 3, bridge pull sling
This bridge pull sling rustless steel steel wire DQS-2, by percentage to the quality, containing following compositions: C:0.10%,
Si:0.30%, Mn:14.45%, P:0.035%, S:0.006%, Cr:18.30%, Ni:
1.10%, N:0.5%, remaining is Fe and inevitable impurity.
Bridge pull sling in the preparation method of this bridge pull sling rustless steel steel wire DQS-2 and embodiment 1 is with stainless
The preparation method of steel steel wire GQS-1 differ only in this step of H: cold-drawn.This bridge pull sling rustless steel
The concrete preparation method of steel wire DQS-2 is as follows:
A: smelt steel billet
With comparative example 1.
B: heating steel billet
With embodiment 1.
C: billet rolling
With comparative example 1.
D: weave silk
With comparative example 1.
E: cooling
With comparative example 1.
F: heat treatment
With embodiment 1.
G: pickling
With embodiment 1.
H: cold-drawn
By 6.5mm → 5.9mm, the STAINLESS STEEL WIRE finished product of a diameter of 6.5mm is carried out a time cold-drawn obtain directly
Footpath is the bridge pull sling rustless steel steel wire of 5.9mm.By named for this bridge pull sling rustless steel steel wire
DQS-2。
Embodiment 3, the bridge pull sling performance of rustless steel steel wire
The present invention is tested by tensile test at room temperature, axial constant amplitude low-cycle fatigue, winding, alternating bending and torsion etc.
The basic mechanical performance of bridge pull sling rustless steel steel wire, fatigue behaviour after test, to each embodiment and comparative example
And processing performance has carried out the test of system.
By the bridge pull sling rustless steel steel wire of each embodiment and comparative example by " steel and product made from steel mechanical property test take
Prepared by sample position and sample " requirement of (GB/T 2975-1998) cuts sample blanks and prepares sample.By " metal stretching
Test method " (GB/T 228-2010) and " bridge cable hot-dip galvanizing steel wire " (GB/T 17101-2008) rule
Determine method measure bridge pull sling rustless steel steel wire basic mechanical performance (nonproportional cyclic straining, tensile strength,
Elastic modelling quantity, percentage elongation).According to " metal material axial constant amplitude low-cycle fatigue test method "
(GB/T15248 2008) and " bridge cable hot-dip galvanizing steel wire " (GB/T 17101-2008) specifies, to bridge
Beam draws hoist cable rustless steel steel wire to carry out fatigue test, determines its fatigue behaviour.According to " artificial atmosphere corrosion testing salt
Mist is tested " regulation of (GB/T 10125-2012) carries out salt spray test to bridge pull sling rustless steel steel wire, determines it
Corrosive nature.
1, mechanical property test
1.1 tensile test at room temperature
About the regulation of sample in sample reference GB/T 228-2010 " metal material tensile testing at ambient temperature ", take
Each embodiment of 30 a length of 400mm and the bridge pull sling rustless steel steel wire of comparative example.
Requirement by " prepared by steel and product made from steel mechanical property test sample position and sample " (GB/T 2975-1998)
Prepare sample.By " metal tensile test method " (GB/T 228-2010) and " bridge cable hot-dip galvanizing steel wire "
(GB/T 17101-2008) prescriptive procedure, utilizes PWS-50 type electro-hydraulic servo testing machine to test.Drawn by test
Tensile strength R of rustless steel steel wirem, Proof strength of non-proportional Rp0.2, elastic modulus E, elongation after fracture (have no progeny
Percentage elongation) A250Meansigma methods and standard value etc. index.Test is carried out in test chamber, test temperature 10-35 DEG C.Examination
Sample original gauge length L0=250mm, sample total length L c >=L0+100mm。
(1) elongation after fracture A250
Elongation after fracture is after sample is broken, the length that its original guage section is increased and the percentage ratio of former gauge length,
It is calculated divided by the original gauge length of sample (gauge length use 250mm) by sample total elongation of having no progeny.Test in triplicate,
Each every kind of bridge pull sling rustless steel steel wire tests 10.
In formula: A250The elongation after fracture (%) of sample in 250mm gauge length；
LuHave no progeny gauge length (mm)；
L0Original gauge length (mm), takes 250mm.
(2) intensity and elastic modelling quantity
Intensity is one of most important mechanical performance index of steel.The elastic modelling quantity of steel is one of stiffness index of steel,
Elastic modelling quantity is the biggest, and its rigidity is the biggest, and during stress, its deformation is the least；Otherwise, elastic modelling quantity is the least, and its rigidity is just
The least, during stress, its deformation is the biggest.
In triplicate, each every kind of bridge pull sling rustless steel steel wire tests 10 in experiment.Tried by room temperature tensile
Test, obtain various intensity indexs and the elastic modelling quantity of bridge pull sling rustless steel steel wire.The disproportional of stainless reinforcing bar prolongs
Stretch intensity, tensile strength and elastic modelling quantity.
(3) lax experiment
Relaxation test specifies according to " metal stresses relaxation test method " (GB/T10120-2013), test temperature model
It is trapped among 19.3 21.2 DEG C, according to theoretical initial load 15.10KN (stress 770MPa, according to the 70% of Rb=1120),
Actual initial load 15.11kN (stress 770Pa), 100 hours test periods.Calculate 1000 hours stress relaxation
Rate extrapolated value (stress relaxation rate extrapolated 1000 hours).In triplicate, each every kind of bridge pull sling is not with in experiment
Rust steel steel wire tests 10.
1.2 fatigue test
According to specification GB/T15248 2008 " metal material axial constant amplitude low-cycle fatigue test method " and GB/T
17101-2008 " bridge cable hot-dip galvanizing steel wire " specifies, uses the bridge pull sling of each embodiment and comparative example not
Rust steel steel wire carries out fatigue test.Sample is uiform section sample, and the guage section of specimen finish is identical with retained part；
The axiality of sample working portion and retained part is within 0.01mm.The major parameter of fatigue test process spectrum is test
Power peak value fmax=1250 × 0.45=562.5MPa, test force valley fmin=562.5-360=202.5MPa, examination
Test power intermediate valueWith test force amplitude fWidth=360MPa.
Test is carried out in test chamber, test temperature 10-35 DEG C.Test in triplicate, each every kind of bridge pull sling
10 are tested with rustless steel steel wire.
Specifying according to " bridge cable hot-dip galvanizing steel wire " (GB/T 17101-2008), tradition draws hoist cable galvanized steel
Silk fatigue behaviour is not less than 2,000,000 times.The mechanics of the bridge pull sling rustless steel steel wire of each embodiment and comparative example
Performance is as shown in table 1.Result shows, the bridge pull sling of embodiment 1 and embodiment 2 tension of rustless steel steel wire
Intensity Rm and Proof strength of non-proportional Rp0.2 and elastic modelling quantity are above the bridge pull sling of comparative example 1 with stainless
Steel steel wire, extension property of having no progeny, stress relaxation ability and fatigue behaviour are significantly better than the bridge pull sling of comparative example 1 and use
Rustless steel steel wire, the bridge pull sling of embodiment 1 and the embodiment 2 elongation after fracture A of rustless steel steel wire250It is all
The bridge pull sling of comparative example 1 is with 2.3 times of rustless steel steel wire, and the bridge pull sling of embodiment 1 and embodiment 2 is used
The stress relaxation rate of rustless steel steel wire is all 0.6 times of the bridge pull sling rustless steel steel wire of comparative example 1, embodiment
1 and the fatigue strength of bridge pull sling rustless steel steel wire of embodiment 2 be all that the bridge pull sling of comparative example 1 is not with
1.7 times of rust steel steel wire.The bridge pull sling of embodiment 1 and embodiment 2 tensile strength Rm of rustless steel steel wire
With Proof strength of non-proportional Rp0.2It is similar to the bridge pull sling rustless steel steel wire of comparative example 2 with elastic modelling quantity,
Extension property of having no progeny is less than the bridge pull sling rustless steel steel wire of comparative example 2, embodiment 1 and the bridge of embodiment 2
The stress relaxation ability and the fatigue behaviour that draw hoist cable rustless steel steel wire are significantly better than the bridge pull sling of comparative example 2 with not
Rust steel steel wire, the bridge pull sling of embodiment 1 and the embodiment 2 elongation after fracture A of rustless steel steel wire250It is all right
The bridge pull sling of ratio 2 is with 3.3 times of rustless steel steel wire, and the bridge pull sling of embodiment 1 and embodiment 2 is not with
The stress relaxation rate of rust steel steel wire is all 0.6 times of the bridge pull sling rustless steel steel wire of comparative example 2, embodiment 1
It is all that the bridge pull sling of comparative example 2 is with stainless with the fatigue strength of the bridge pull sling rustless steel steel wire of embodiment 2
1.7 times of steel steel wire.The bridge pull sling of embodiment 1 and embodiment 2 elastic modelling quantity of rustless steel steel wire and contrast
The bridge pull sling rustless steel steel wire of example 3 is similar, the bridge pull sling of embodiment 1 and embodiment 2 rustless steel steel
The elongation after fracture of silk is substantially less than the bridge pull sling rustless steel steel wire of comparative example 3, but embodiment 1 and implementing
The bridge pull sling of example 2 tensile strength Rm of rustless steel steel wire and Proof strength of non-proportional Rp0.2、Stress relaxation
Performance and fatigue behaviour are significantly better than the bridge pull sling rustless steel steel wire of comparative example 3, embodiment 1 and embodiment 2
Tensile strength Rm of bridge pull sling rustless steel steel wire be all the bridge pull sling rustless steel steel wire of comparative example 3
1.4 times, the bridge pull sling of embodiment 1 and the embodiment 2 Proof strength of non-proportional Rp of rustless steel steel wire0.2
Being all 1.3 times of bridge pull sling rustless steel steel wire of comparative example 3, the bridge of embodiment 1 and embodiment 2 draws and hangs
The stress relaxation rate of rope rustless steel steel wire is 0.7 He of the bridge pull sling rustless steel steel wire of comparative example 3 respectively
0.6 times, the fatigue strength of the bridge pull sling rustless steel steel wire of embodiment 1 and embodiment 2 is comparative example 3 respectively
Bridge pull sling with 1.9 times and 2.0 times of rustless steel steel wire.
Table 1, the bridge pull sling mechanical property of rustless steel steel wire
2, technological property test
Technological property test mainly investigates material plasticity deformability, is respectively the tests such as winding, alternating bending and torsion,
Every test separately designs as follows:
(1) wrapping test
Wrapping test test is the bridge pull sling rustless steel steel wire ability of bearing plastic deformation in winding process,
It is by bridge pull sling rustless steel steel wire test compact winding regulation spiral shell on the plug meeting correlation standard diameter
Volution number.Steel wire winding test is carried out by " metal material material winds test method " (GB/T 2976-2004), is twined
It is 15mm around diameter of mandrel.
Test temperature is 10 DEG C-35 DEG C, and process of the test is as follows:
1. sample should be in the case of not having any torsion, with the constant speed of a circle that is less than per second along hand of helix
Winding around on plug, if desired, can slow down speed of wrap, affects result of the test to prevent temperature from raising.
2. for guaranteeing to be wound around closely, can apply less than this corresponding force value of sample tensile strength at sample free end during winding
The tightening force of 5%.
The most often it is wound around 1 circle, estimates specimen surface, see whether Steel Wire Surface ftractures.
In triplicate, each every kind of bridge pull sling rustless steel steel wire tests 10 in experiment.
(2) alternating bending test
Alternating bending test is bridge pull sling rustless steel steel wire alternating bending plastic deformation ability.Alternating bending tries
Test and carry out by the regulation of " metal material wire rod alternating bending test method " (GB/T 238-2013), it is desirable to test specimen is put down
Directly, surface nondestructive is hindered, and test temperature is 23 DEG C ± 5 DEG C, by sample free end 90-degree bent, returns again to start bit
Put as bending for the first time.Carry out alternating bending continuously and incessantly the most round about.Bending operation is with per second
Steadily carry out without impact ground less than uniform rate once.Observing specimen surface after off-test, not produce naked eyes visible
Crackle, then pass the test.If sample fracture, it is not counted in number of bends for the last time.Every kind of bridge pull sling is not with
Rust steel steel wire selects bending arc radius to be 15mm.Test in triplicate, each every kind of bridge pull sling rustless steel steel
Filament test 10.
(3) torsion test
Torsion test test is plastic deformation ability during bridge pull sling rustless steel steel wire torsion, and this test uses
Unidirectional torsion test, its principle be by sample around axis to a direction Rotating with Uniform 360 °, as once reversing.
100 times of a length of specimen finish of torsional specimen.Often reverse 1 time, estimate specimen surface, whether see Steel Wire Surface
Cracking.In triplicate, each every kind of bridge pull sling rustless steel steel wire tests 10 in experiment.Each embodiment and contrast
The processing performance of the bridge pull sling rustless steel steel wire of example is as shown in table 2.
Table 2, the bridge pull sling processing performance of rustless steel steel wire
Note: being wound around the number of turns is the indehiscent number of turns of Steel Wire Surface.
3, corrosive nature
(1) spot corrosion experiment
Measure the corrosive nature of the bridge pull sling rustless steel steel wire of each embodiment and comparative example as follows.
Determination test equipment uses the M273A type electrochemical corrosion measuring instrument that EG&G company of the U.S. produces；Assay method
As follows with condition:
Polarization method is dynamic electric bit polarization；Scanning speed is 20mV/min；Reference electrode is saturated calomel electrode；Auxiliary
Helping electrode is graphite electrode；Test medium is 3.5% sodium chloride solution；Test temperature is 31 DEG C；Measurement result is such as
Shown in table 3, the bridge pull sling of embodiment 1, embodiment 2, comparative example 1, comparative example 2 and comparative example 3 is with stainless
The pitting potential of steel steel wire is more or less the same, respectively 150mV, 148mV, 144mV, 142mV and 143mV, has
Significantly passive behavior.Use identical method that zinc-coated wire (production of Tianjin galvanized steel Silk Mill) is carried out pitting potential
Measuring, the pitting potential recording zinc-coated wire is-200mV, it can be seen that the bridge of the embodiment of the present invention 1,2 preparation
Draw the pitting potential of the hoist cable rustless steel steel wire pitting potential higher than zinc-coated wire, and pitting potential is the highest is less susceptible to
Corrosion, the bridge pull sling of the embodiment of the present invention 1,2 preparation is wanted than zinc-coated wire with the pitting resistance of rustless steel steel wire
Excellent.
(2) neutral salt spray test
Use the corrosivity of the bridge pull sling rustless steel steel wire of the neutral salt spray test each embodiment of mensuration and comparative example
Energy.Simultaneously using common zinc-coated wire as comparison.Neutral salt spray test use key instrument include salt spray test chamber,
Intelligent test system and pH meter.Wherein salt spray test chamber is CK/YW-120C Intelligent automatic salt spray test chamber, by
Beijing Qie Ke company produces, interior case a size of 1200mm × 800mm × 500mm.The operation principle of salt fog cabinet is, application
Bai Nute principle is atomized after drawing saline, and compressed air is wetted via the bubble column in its led to nozzle way,
Etchant solution is become corrosivity aerosol by nozzle with air atomizing, thus forms the corrosive environment of test material.Intelligent test
System is the test system that long alluvial gold code company produces, for being controlled the stress of sensor.During configuration saline,
Use the pH value of pH meter test solution.
Before Shi Yan, steel wire is soaked 24h in the HCl solution that concentration is 10%, after taking-up, under the washing away of clear water, use steel
Wire brush eliminates surface rust, with surface residual hydrochloric acid in lime water, then rinses well with clear water.At baking oven after wiping
Middle drying 4h, then in exsiccator, deposit 4h.Weighing weight with the electronic balance that precision is 0.1g, precision is 0.5mm
Steel ruler measure length.
This test is entered in strict accordance with national standard " artificial atmosphere corrosion testing salt spray test " (GB/T 10125-2012)
OK.Being equipped with the chemical reagent required for salt fog is chemical pure NaCl, distilled water being equipped to concentration is 55g/L solution.
Put two salt fog catchers in proof box, one near nozzle, one away from nozzle, for funnel shaped, a diameter of
100mm, area is about 80cm2, it is used for measuring average settlement rate, meets 80cm2Horizontal area on average settlement rate
Requirement for 1.5mL/h ± 0.5mL/h.The pH value collecting liquid controls, 6.5～7.2, after going beyond the scope, to use analytical pure
HCl and NaOH is adjusted.
Neutral salt spray test carries out 40d.In triplicate, each every kind of bridge pull sling rustless steel steel wire is tested in experiment
10.After bridge pull sling rustless steel steel wire neutral salt spray test completes, take out the steel wire of corrosion, mark according to the world
Quasi-ISO 8407-2009 " Corrosion of metals and alloys Removal of corrosion
Products from corrosion test specimens ", it is dissolved in 1000mL distilled water shape with 200mL concentrated nitric acid
The solution become at room temperature soaks 60min, rinses with clear water, and eliminate surface rust with wire brush after taking-up, is drying
After drying in case, weigh weight with the electronic balance that precision is 0.1g.
3.4.2 mass loss rate
Weigh wire quality before and after corrosion, calculate mass loss rate.Mass loss rate=(before corrosion after quality-corrosion
Quality) front quality × 100% of/corrosion.The bridge pull sling rustless steel steel wire of each embodiment and comparative example all tests 10
Root.
The mass loss rate of the bridge pull sling rustless steel steel wire of each embodiment and comparative example is as shown in table 3.Result table
Bright, the bridge pull sling rustless steel steel wire of embodiment 1, embodiment 2, comparative example 1, comparative example 2 and comparative example 3
Mass loss rate be more or less the same, all far below common zinc-coated wire, illustrate embodiment 1, embodiment 2, comparative example 1,
The decay resistance of the bridge pull sling rustless steel steel wire of comparative example 2 and comparative example 3 is better than common zinc-coated wire.
The table 3. bridge pull sling corrosive nature of rustless steel steel wire
| Bridge pull sling rustless steel steel wire | Pitting potential | Average mass loss rate |
| The GQS-1 of embodiment 1 | 150mV | 0.06123% |
| The GQS-2 of embodiment 2 | 148mV | 0.06111% |
| The TQS-1 of comparative example 1 | 144mV | 0.06098% |
| The DQS-1 of comparative example 2 | 142mV | 0.06089% |
| The DQS-2 of comparative example 3 | 143mV | 0.06075% |
| Common zinc-coated wire | -200mV | 1.809% |
Claims (8)
1. rustless steel steel wire, by percentage to the quality, containing following compositions:
C :≤0.12%；
Si :≤1.00%；
Mn:14.0-19.0%；
P≤0.06%；
S≤0.01%；
Cr:18.0-22.0%；
Ni:1.0-2.0%；
N:0.45-0.65%；
Surplus is ferrum and inevitable impurity；
Described rustless steel steel wire is prepared according to the method comprised the steps:
A, smelting steel billet；
B, heating steel billet；
C, billet rolling, obtain steel wire rod；
D, weave silk；
E, cooling；
F, heat treatment；
G, pickling, obtain steel wire rod after pickling；
H, cold-drawn, obtain rustless steel steel wire；
It is characterized in that: in described C, a diameter of 6.5mm of steel wire rod；Described rustless steel gauge of wire is 5.7mm；
Described cold-drawn is steel wire rod after described pickling to be carried out a time cold-drawn obtain the rustless steel steel of a diameter of 5.7mm
Silk.
Rustless steel steel wire the most according to claim 1, it is characterised in that: in described F, heat treatment temperature is
1000 DEG C, heat treatment time is 1.5 hours.
Rustless steel steel wire the most according to claim 1 and 2, it is characterised in that: in described B, heating steel billet
Temperature is 1260 DEG C, and the heating steel billet time is 3.5 hours.
4. according to described rustless steel steel wire arbitrary in claims 1 to 3, it is characterised in that: described rustless steel steel
Silk, by percentage to the quality, containing following compositions: C:0.10%, Si:0.30%, Mn:14.45%,
P:0.035%, S:0.006%, Cr:18.30%, Ni:1.10%, N:0.5%, remaining is Fe
With inevitable impurity.
5. according to described rustless steel steel wire arbitrary in Claims 1-4, it is characterised in that:
Described smelting steel billet includes:
(1) electric furnace smelting: smelted by steel scrap, nickel and alloy addition electric furnace, treats that in electric furnace, crude molten steel chemistry becomes
Point reach tapping during following standard, obtain just making steel the quality that weight/mass percentage composition is 1.30-1.80%, Mn of water: C
Percentage composition is that the weight/mass percentage composition of 8.5-12.5%, P is less than or equal to 0.028%, and the weight/mass percentage composition of S is less than
Equal to 0.025%, the weight/mass percentage composition of Cr be the weight/mass percentage composition of 17.0-22.0%, Ni be 1.0-2.0%；
(2) argon oxygen decarburizing furnace refine: described just steel-making water is first carried out the smelting heat of oxidation, after carry out reduction period smelting,
Add slag former after reduction and carry out slag making, and add tapping after target component is finely adjusted by fine setting composition, obtain refine
Molten steel；Wherein, the heat of oxidation, smelting was blown into mixed gas, and described mixed gas is by N2And O2According to (2-4): the body of 1
Long-pending than composition；Reduction period is omnidistance nitrogen blowing smelting in smelting；
(3) use continuous casting working procedure casting steel billet, obtain steel billet；
In described (1), alloy is ferrochrome and ferromanganese.
6. according to described rustless steel steel wire arbitrary in claim 1 to 5, it is characterised in that: described pickling is with mixed
Acid is carried out, the solution that described nitration mixture is made up of according to the volume ratio of 4:4:92 nitric acid, Fluohydric acid. and water.
7. arbitrary described rustless steel steel wire application in preparation bridge pull sling in claim 1 to 6.
8. in claim 1 to 6 arbitrary described rustless steel steel wire as in bridge pull sling rustless steel steel wire
Application.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114603312A (en) * | 2020-12-09 | 2022-06-10 | 常州市联谊特种不锈钢管有限公司 | Production process of high-precision magnetic isolation sleeve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01215957A (en) * | 1988-02-25 | 1989-08-29 | Nippon Metal Gasket Kk | Metallic gasket material |
| CN102002642A (en) * | 2010-12-31 | 2011-04-06 | 上海加宁新技术研究所 | Superhigh strength non-magnetic stainless steel |
| CN102534424A (en) * | 2012-01-05 | 2012-07-04 | 山西太钢不锈钢股份有限公司 | Stainless steel, stainless steel wire for bridge pull sling as well as preparation methods and application thereof |
| CN103088754A (en) * | 2011-11-08 | 2013-05-08 | 交通运输部公路科学研究所 | Stainless steel pulling cable device for bridge |
| CN103725954A (en) * | 2013-12-16 | 2014-04-16 | 兴化市新光合金材料有限公司 | High-strength corrosion-resistance steel wire and manufacturing process thereof |
-
2016
- 2016-04-28 CN CN201610273721.9A patent/CN105880941A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01215957A (en) * | 1988-02-25 | 1989-08-29 | Nippon Metal Gasket Kk | Metallic gasket material |
| CN102002642A (en) * | 2010-12-31 | 2011-04-06 | 上海加宁新技术研究所 | Superhigh strength non-magnetic stainless steel |
| CN103088754A (en) * | 2011-11-08 | 2013-05-08 | 交通运输部公路科学研究所 | Stainless steel pulling cable device for bridge |
| CN102534424A (en) * | 2012-01-05 | 2012-07-04 | 山西太钢不锈钢股份有限公司 | Stainless steel, stainless steel wire for bridge pull sling as well as preparation methods and application thereof |
| CN103725954A (en) * | 2013-12-16 | 2014-04-16 | 兴化市新光合金材料有限公司 | High-strength corrosion-resistance steel wire and manufacturing process thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114603312A (en) * | 2020-12-09 | 2022-06-10 | 常州市联谊特种不锈钢管有限公司 | Production process of high-precision magnetic isolation sleeve |
| CN114603312B (en) * | 2020-12-09 | 2024-04-30 | 常州市联谊特种不锈钢管有限公司 | Production process of high-precision magnetism isolating sleeve |
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