CN105839031B - The preparation method of endurance bridge pull sling stainless steel steel wire - Google Patents
The preparation method of endurance bridge pull sling stainless steel steel wire Download PDFInfo
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- CN105839031B CN105839031B CN201610274796.9A CN201610274796A CN105839031B CN 105839031 B CN105839031 B CN 105839031B CN 201610274796 A CN201610274796 A CN 201610274796A CN 105839031 B CN105839031 B CN 105839031B
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
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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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/086—Iron or steel solutions containing HF
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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- Chemical & Material Sciences (AREA)
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Abstract
Preparation method the invention discloses endurance bridge pull sling with stainless steel steel wire.The stainless steel steel wire, contains 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 iron and inevitable impurity；The stainless steel steel wire is prepared according to the method comprised the following steps：A, steel billet is smelted；B, heating steel billet；C, billet rolling；D, spin；E, cool down；F, it is heat-treated；G, pickling, steel wire rod after pickling is obtained；H, cold-drawn, stainless steel steel wire is obtained；In the C, a diameter of 6.5mm of steel wire rod；Stainless steel gauge of wire is 5.6mm；The cold-drawn obtains a diameter of 5.6mm stainless steel steel wire for steel wire rod after pickling is carried out into a time cold-drawn.
Description
Technical field
The present invention relates to a kind of preparation method of stainless steel steel wire, more particularly to a kind of endurance bridge pull sling is with stainless
The preparation method of steel steel wire.
Background technology
The advantages that hoist cable bridge is elegant in appearance with its, and span ability is big is drawn, is widely used, but disease frequency in recent years
Hair, to find out its cause, tradition draws hoist cable, using high-strength carbon steel wire or steel strand wires, its structure is very very thin, and is chronically at
It is more sensitive to external world's infringement under high-stress state, with the growth of service life, progressively expose anti-corrosive coating's aging, corrosion,
The diseases such as fracture of wire, severe patient occur drawing hoist cable fracture, cause bridge collapse accident.Data from investigation shows, draws hoist cable bridge at present
Changing the rope cycle is generally 5~20 years, much smaller than design life.The corrective measure that countries in the world are taken at present is mainly from drag-line
Protective materials, cable body structure etc. are set about, not very good from the point of view of practical application effect, and a new resolving ideas is profit
High-strength carbon steel wire is replaced with stainless steel wire, the premium properties such as anti-corrosion, wear-resisting, high-strength of stainless steel is made full use of, so as to thoroughly
Solve to draw this persistent ailment of sling steel wire corrosion disease.
Chinese invention patent CN102534424A discloses stainless steel, bridge pull sling stainless steel steel wire and its preparation side
Method and application, the bridge pull sling stainless steel steel wire have preferable decay resistance while intensity is improved.
The bridge pull sling of embodiment 1 is best with stainless steel steel wire TQS-1 performance in CN102534424A.
As the stainless steel for drawing hoist cable materials application, on the premise of rustless property, corrosion resistance is met, should also have excellent
Mechanical property and processing performance.
The content of the invention
The technical problems to be solved by the invention are how to improve the mechanical property of bridge pull sling stainless steel steel wire, tired
Labor performance and processing performance.Keeping higher-strength (Proof strength of non-proportional (Rp), tensile strength (Rm) and corrosion resistance
The bridge pull sling plasticity of stainless steel steel wire, fatigue behaviour and processing performance are improved while energy.
In order to solve the above technical problems, the invention provides the preparation of the stainless steel steel wire for preparing bridge pull sling
Method.
The preparation method of stainless steel steel wire provided by the present invention, the stainless steel steel wire by percentage to the quality, contain
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 iron and inevitable impurity；
The preparation method of the stainless steel steel wire comprises the following steps：
A, steel billet is smelted；
B, heating steel billet；
C, billet rolling, steel wire rod is obtained；
D, spin；
E, cool down；
F, it is heat-treated；
G, pickling, steel wire rod after pickling is obtained；
H, cold-drawn, stainless steel steel wire is obtained；
Wherein, in the C, a diameter of 6.5mm of steel wire rod；The stainless steel gauge of wire is 5.6mm；
The cold-drawn obtains a diameter of 5.6mm stainless steel steel for steel wire rod after the pickling is carried out into a time cold-drawn
Silk.
In above-mentioned F, the heat treatment temperature can be 1000 DEG C, and heat treatment time can be 1.5 hours.
In above-mentioned B, the billet heating temperature can be 1260 DEG C, and the heating steel billet time is 3.5 hours.
The stainless steel steel wire concretely following stainless 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 preparation method, the smelting steel billet includes：
(1) electric furnace smelting：Steel scrap and nickel and alloy are added into electric furnace to be smelted, treat that crude steel Hydrochemical Composition reaches in electric furnace
Tapped during to following standard, obtain just steel-making water：C weight/mass percentage composition is 1.30-1.80% (such as 1.30%), Mn quality
Percentage composition is 8.5-12.5% (such as 10.0%), and P weight/mass percentage composition is less than or equal to 0.028%, S weight/mass percentage composition
Weight/mass percentage composition less than or equal to 0.025%, Cr is 17.0-22.0% (such as 18.0%), and Ni weight/mass percentage composition is
1.0-2.0% (such as 1.0%)；
(2) argon oxygen decarburizing furnace refines：Heat of oxidation smelting is first carried out to the just steel-making water, it is rear to carry out reduction period smelting, also
Slag former is added after original and carries out slag making, and adds after fine setting composition is finely adjusted to target component and taps, obtains refined molten steel；Its
In, heat of oxidation smelting is blown into mixed gas, and the mixed gas is by N2And O2According to (2-4):1 (such as 3:1) volume ratio composition；
Reduction period whole nitrogen blowing smelting in smelting；
(3) using continuous casting working procedure casting steel billet, steel billet is obtained；
In (1), alloy is ferrochrome and ferromanganese.
In above-mentioned preparation method, according to 800-1200m in the heat of oxidation smelting3/ h (such as 900m3/ h) flow velocity be blown into institute
State mixed gas；According to 400-600m in the reduction period smelting3/ h (such as 500m3/ h) flow velocity nitrogen blowing.
In above-mentioned preparation method, during the reduction period is smelted, add ferrosilicon and aluminium, the mass ratio of the ferrosilicon and aluminium are
(5-12):1, such as 9:1.
In above-mentioned preparation method, the ferrochrome concretely high carbon ferro-chrome, the C of high carbon ferro-chrome weight/mass percentage composition
Can be 4%-8%, such as 6.7%；The ferromanganese can be high carbon ferromanganese, and the C of high carbon ferromanganese weight/mass percentage composition can be
2%-8%, such as 7.5%.
In above-mentioned preparation method, the slag former can be lime and fluorite；The slag former specifically can be by lime and fluorite
According to (2-6):1 (such as 10:3) mass ratio composition.
In above-mentioned preparation method, the fine setting composition can be alloy or metal containing manganese, nitrogen and chromium, such as manganese and chromium nitride
Iron.The fine setting composition can be specifically 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 preparation method, the pickling is carried out with nitration mixture, and the nitration mixture is according to 4 by nitric acid, hydrofluoric acid and water:4:
The solution of 92 volume ratio composition.
Application of any of the above-described kind of preparation method in bridge pull sling is prepared and preparing bridge pull sling stainless steel
Application in steel wire belongs to protection scope of the present invention.
The TQS-1 of bridge pull sling prepared by the present invention in stainless steel steel wire GQS-1 and GQS-2 and CN102534424A
Compare, keep higher-strength (Proof strength of non-proportional (Rp), tensile strength (Rm)), rigidity (modulus of elasticity (E)) and
The stress relaxation ability, fatigue behaviour and processing performance of bridge pull sling stainless steel steel wire are improved while decay resistance
(plastic deformation ability).The bridge pull sling of embodiment 1 is with the bridge pull sling of stainless steel steel wire GQS-1 and embodiment 2 with not
Rust steel steel wire GQS-2 elongation after fracture A250Be comparative example 1 bridge pull sling with 2.3 times of stainless steel steel wire, embodiment
1 bridge pull sling is loose with the bridge pull sling of stainless steel steel wire GQS-1 and embodiment 2 stainless steel steel wire GQS-2 stress
Relaxation rate be the bridge pull sling of comparative example 1 with 0.6 times of stainless steel steel wire, the bridge pull sling stainless steel steel of embodiment 1
Silk GQS-1 and the bridge pull sling stainless steel steel wire GQS-2 fatigue strength of embodiment 2 are the bridge pull slings of comparative example 1
With 1.7 times of stainless steel steel wire.
Embodiment
The present invention is further described in detail with reference to embodiment, the embodiment provided is only for explaining
The bright present invention, the scope being not intended to be limiting of the invention.Experimental method in following embodiments, unless otherwise specified, it is
Conventional method.Material used, reagent etc., unless otherwise specified, are commercially obtained in following embodiments.
The composition of the various alloys and relevant apparatus to being used in following embodiments and comparative example illustrates below：
High carbon ferro-chrome, by percentage to the quality, composition are as follows：Cr 67%, C 6.7%, Si 1.8%, P 0.02%, S
0.026%, surplus is iron and inevitable impurity；
High carbon ferromanganese, by percentage to the quality, composition are as follows：Mn 78%, C 7.5%, Si 0.30%, P 0.16%, S
0.03%, surplus is iron and inevitable impurity；
Metallic nickel, by percentage to the quality, composition are as follows：Ni 99.9%, surplus are inevitable impurity；
Ferrosilicon, by percentage to the quality, composition are as follows：Si 75%, Al 1.3%, Ca 0.8%, P 0.023%, S
0.018%, C 0.09%, surplus are iron and inevitable impurity；
Aluminum shot, by percentage to the quality, composition are as follows：Al 99.5%, Fe 0.15%, Si 0.10%, Cu 0.01%,
Ca 0.01%, Mg 0.03%, surplus are inevitable impurity；
Lime, by percentage to the quality, composition are as follows：CaO 90%, SiO22.1%, P 0.012%, S 0.085%,
MgO 3.5%, surplus are inevitable impurity；
Fluorite, by percentage to the quality, composition are as follows：CaF285%, SiO212%, P 0.032%, S 0.12%, it is remaining
Measure as inevitable impurity；
By percentage to the quality, composition is as follows for nitrided ferro-chromium：Cr 64.6%, C 0.03%, N 8.45%, P
0.023%, S 0.027%, Si 0.81%, surplus are iron and inevitable impurity；
By percentage to the quality, composition is as follows for manganese metal：C 0.01%, Si 0.002%, P 0.005%, S 0.03%,
Mn 99.8%, surplus are inevitable impurity；
The model of conticaster：R8m, manufacturer are：Da Nieli Automation Co., Ltd；
Withdrawal straightening machine model：LZ, Wuxi City Ge Ma Machinery Co., Ltd..
The preparation of comparative example 1, bridge pull sling stainless steel steel wire TQS-1
The bridge pull sling is in Chinese invention patent CN102534424A in embodiment 1 with stainless steel steel wire TQS-1
Bridge pull sling stainless steel steel wire, by percentage to the quality, contains 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 for Fe and inevitably
Impurity.
Its specific preparation method is as follows：
A：Smelt steel billet
1) electric furnace smelting
Raw material is added in electric furnace：15.7 tons of steel scrap, 5.8 tons of high carbon ferro-chrome, 2.6 tons of high carbon ferromanganese, 0.5 ton of metallic nickel,
Power-upization is clear, and adding after above-mentioned substance makes the control roughly of electric furnace crude steel Hydrochemical Composition in carbon 1.30%, and P≤0.028%, S≤
0.025%, Cr：18.0%, Ni：1.0%, Mn：Tapped when 10.0%, obtain just steel-making water；In each stove will guarantee it is clear
Evacuation, prevent from causing the fluctuation of Cr, Ni composition, scratch clean clinker in tapping, determine slag thickness 50mm in ladle.
2) argon oxygen decarburizing furnace refines
Just steel-making water obtained above is transferred on argon oxygen decarburizing furnace and refined, the heat of oxidation of refining is blown into mixed gas,
The mixed gas is by N2And O2According to 3:1 volume ratio composition, the total amount of the being blown into 900m of the mixed gas3/ h (the i.e. mixed gas
Flow velocity is 900m3/ h), reduction period whole process nitrogen blowing is smelted thereafter, is blown into nitrogen amount 500m3(i.e. the flow velocity of nitrogen is 500m to/h3/
H), ferrosilicon 45kg/t is added, aluminum shot 5kg/t is reduced, and added lime 10kg/t, fluorite 3.0kg/t, slag making, reduction period
The common 800kg of manganese metal is added portionwise, based on nitrogen recovery 50%, it is micro- to add nitrided ferro-chromium 300kg regulation nitrogen content progress compositions
Adjust, nitrogen content is reached 0.65%-0.68%, then by minimum discharge 55m3After/h nitrogen blowings are stirred 3 minutes, steel is determined
Each component content is in water：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, rear direct tapping, obtains refined molten steel；Survey
It is thick to determine slag in ladle：160mm.Ferrosilicon 45kg/t, aluminum shot 5kg/t and lime 10kg/t, fluorite 3.0kg/t are wherein added, is referred to
Ferrosilicon 45kg, aluminum shot 5kg, lime 10kg, fluorite 3.0kg ratio addition ferrosilicon, aluminum shot, lime and firefly are added in raw material per ton
Stone.
3) continuous casting working procedure：Continuous casting working procedure is completed by conticaster, and process is：It will first be equipped with and refine molten steel (refined molten steel)
Ladle be transported to panoramic table, after panoramic table turns to pouring position, molten steel is injected into tundish, the molten steel of tundish passes through the mouth of a river
Each crystallizer is assigned to, withdrawal straightening machine pulls out the casting in crystallizer with crystallizing vibration device, after cooling, electromagnetic agitation,
Cut slab.Wherein, in refining ladle molten steel fusing point：1405℃；The temperature of tundish：1430℃；Continuous casting obtains stainless
The specification of steel steel billet：220mm (thickness) × 220mm (width)；The pulling rate of withdrawal straightening machine is 0.6m/min；Tundish immersed nozzle inserts
Depth is 135mm.
B：Heating steel billet
Obtained stainless steel steel billet is heated to 1280 DEG C in sealed heating furnace, is incubated 2 hours.
C：Billet rolling
On stainless steel high-speed rod-rolling mill, by stainless steel billet rolling after heating into a diameter of 6.5mm stainless steel wire
Material.
D：Spinning
STAINLESS STEEL WIRE is rolled into the coil of strip that internal diameter is 1150mm on Laying head.
E：Cooling
The STAINLESS STEEL WIRE volume after spinning is cooled to room temperature on the cooling roller bed of transportation.
F：Heat treatment
As above the STAINLESS STEEL WIRE obtained is put into heat-treatment furnace and is heat-treated, 1100 DEG C of heat treatment temperature, insulation
1.5 hours, water cooling of coming out of the stove.
G：Pickling
By the stainless steel wire timber-used mass concentration after heat treatment be 15% nitric acid and mass concentration is that 5% hydrofluoric acid is made into
Acid carries out pickling and obtains STAINLESS STEEL WIRE finished product, its a diameter of 6.5mm.
H：Cold-drawn
A diameter of 6.5mm STAINLESS STEEL WIRE finished product is carried out into two passage cold-drawns by 6.5mm → 5.5mm → 5.0mm to obtain
To a diameter of 5.0mm bridge pull sling stainless steel steel wire.The bridge pull sling is named as TQS-1 with stainless steel steel wire.
Above-mentioned two passages cold-drawn refer to by a diameter of 6.5mm STAINLESS STEEL WIRE finished product first carry out a time cold-drawn obtain it is a diameter of
5.5mm STAINLESS STEEL WIRE, then a diameter of 5.5mm STAINLESS STEEL WIRE is subjected to a time cold-drawn and obtains a diameter of 5.0mm's
STAINLESS STEEL WIRE, the STAINLESS STEEL WIRE of a diameter of 5.0mm is bridge pull sling stainless steel steel wire TQS-1.
The preparation of embodiment 1, bridge pull sling stainless steel steel wire GQS-1
Bridge pull sling stainless steel steel wire GQS-1, by percentage to the quality, contains 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.
The bridge pull sling draws hoist cable stainless steel with stainless steel steel wire GQS-1 preparation method and the Bridge of comparative example 1
Steel wire TQS-1 preparation method differs only in B：Heating steel billet, F：Heat treatment, G：Pickling and H：This four steps of cold-drawn.
The bridge pull sling is as follows with stainless steel steel wire GQS-1 specific preparation method：
A：Smelt steel billet
With comparative example 1.
B：Heating steel billet
Obtained stainless steel steel billet is heated to 1260 DEG C in sealed heating furnace, is incubated 3.5 hours.
C：Billet rolling
With comparative example 1.
D：Spinning
With comparative example 1.
E：Cooling
With comparative example 1.
F：Heat treatment
As above the STAINLESS STEEL WIRE obtained is put into heat-treatment furnace and is heat-treated, 1000 DEG C of heat treatment temperature, insulation
1.5 hours, water cooling of coming out of the stove.
G：Pickling
Stainless steel wire timber-used nitration mixture after heat treatment is subjected to pickling, obtains STAINLESS STEEL WIRE finished product, its is a diameter of
6.5mm.The nitration mixture is according to 4 by nitric acid, hydrofluoric acid and water:4:The solution of 92 volume ratio composition.
H：Cold-drawn
By a diameter of 6.5mm STAINLESS STEEL WIRE finished product by 6.5mm → 5.6mm carry out a time cold-drawn obtain it is a diameter of
5.6mm bridge pull sling stainless steel steel wire.The bridge pull sling is named as GQS-1 with stainless steel steel wire.
The preparation of embodiment 2, bridge pull sling stainless steel steel wire GQS-2
Bridge pull sling stainless steel steel wire GQS-2, by percentage to the quality, contains 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.
The bridge pull sling draws hoist cable stainless steel with stainless steel steel wire GQS-2 preparation method and the Bridge of comparative example 1
Steel wire TQS-1 preparation method differs only in B：Heating steel billet, F：Heat treatment, G：Pickling and H：This four steps of cold-drawn.
Bridge pull sling stainless steel steel wire of the bridge pull sling in stainless steel steel wire GQS-2 preparation method and embodiment 1
GQS-1 preparation method differs only in H：This step of cold-drawn.Bridge pull sling stainless steel steel wire GQS-2 tool
Preparation 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：Spinning
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 a diameter of 6.5mm STAINLESS STEEL WIRE finished product by 6.5mm → 5.7mm carry out a time cold-drawn obtain it is a diameter of
5.7mm bridge pull sling stainless steel steel wire.The bridge pull sling is named as GQS-2 with stainless steel steel wire.
The preparation of comparative example 2, bridge pull sling stainless steel steel wire DQS-1
Bridge pull sling stainless steel steel wire DQS-1, by percentage to the quality, contains 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.
The bridge pull sling is with the bridge pull sling in stainless steel steel wire DQS-1 preparation method and embodiment 1 with stainless
Steel steel wire GQS-1 preparation method differs only in H：This step of cold-drawn.Bridge pull sling stainless steel steel wire
DQS-1 specific preparation method 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：Spinning
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 a diameter of 6.5mm STAINLESS STEEL WIRE finished product by 6.5mm → 5.5mm carry out a time cold-drawn obtain it is a diameter of
5.5mm bridge pull sling stainless steel steel wire.The bridge pull sling is named as DQS-1 with stainless steel steel wire.
The preparation of comparative example 3, bridge pull sling stainless steel steel wire DQS-2
Bridge pull sling stainless steel steel wire DQS-2, by percentage to the quality, contains 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.
The bridge pull sling is with the bridge pull sling in stainless steel steel wire DQS-2 preparation method and embodiment 1 with stainless
Steel steel wire GQS-1 preparation method differs only in H：This step of cold-drawn.Bridge pull sling stainless steel steel wire
DQS-2 specific preparation method 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：Spinning
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 a diameter of 6.5mm STAINLESS STEEL WIRE finished product by 6.5mm → 5.9mm carry out a time cold-drawn obtain it is a diameter of
5.9mm bridge pull sling stainless steel steel wire.The bridge pull sling is named as DQS-2 with stainless steel steel wire.
The performance of embodiment 3, bridge pull sling stainless steel steel wire
The present invention passes through the examinations such as tensile test at room temperature, the experiment of axial constant amplitude low-cycle fatigue, winding, alternating bending and torsion
After testing, to the basic mechanical performance, fatigue behaviour and technique of the bridge pull sling of each embodiment and comparative example stainless steel steel wire
Performance has carried out the experiment of system.
The bridge pull sling of each embodiment and comparative example is pressed with stainless steel steel wire《Steel and product made from steel mechanical property test take
It is prepared by sample position and sample》The requirement of (GB/T 2975-1998) cuts sample blanks and prepares sample.Press《Metal tensile test side
Method》(GB/T 228-2010) and《Bridge cable hot-dip galvanizing steel wire》(GB/T 17101-2008) prescriptive procedure determines bridge
Draw the basic mechanical performance (nonproportional cyclic straining, tensile strength, modulus of elasticity, elongation) of hoist cable stainless steel steel wire.Root
According to《Metal material axial direction constant amplitude low-cycle fatigue test method》(GB/T15248-2008) and《Bridge cable hot-galvanized steel
Silk》(GB/T 17101-2008) is provided, is carried out fatigue test with stainless steel steel wire to bridge pull sling, is determined its fatigue behaviour.
According to《Artificial atmosphere corrosion test salt spray test》The regulation of (GB/T 10125-2012) is to bridge pull sling stainless steel steel wire
Salt spray test is carried out, determines its corrosive nature.
1st, mechanical property test
1.1 tensile test at room temperature
Sample is with reference to GB/T 228-2010《Metal material tensile testing at ambient temperature》In regulation on sample, take 30
Root long degree is the bridge pull sling stainless steel steel wire of 400mm each embodiment and comparative example.
Press《It is prepared by steel and product made from steel mechanical property test sample position and sample》The requirement system of (GB/T 2975-1998)
Standby sample.Press《Metal tensile test method》(GB/T 228-2010) and《Bridge cable hot-dip galvanizing steel wire》(GB/T
17101-2008) prescriptive procedure, tested using PWS-50 types electro-hydraulic servo testing machine.The anti-of stainless steel steel wire is drawn by experiment
Tensile strength Rm, Proof strength of non-proportional Rp0.2, elastic modulus E, elongation after fracture (elongation after fracture) A250It is flat etc. index
Average and standard value.Experiment is carried out in laboratory, 10-35 DEG C of test temperature.The original gauge length L of sample0=250mm, sample are total
Length Lc >=L0+100mm。
(1) elongation after fracture A250
Elongation after fracture is after sample is broken, its original guage section increased length and former gauge length percentage
Than having no progeny total elongation by sample divided by the original gauge length of sample (gauge length uses 250mm) being calculated.Test in triplicate, often
Secondary every kind of bridge pull sling tests 10 with stainless steel steel wire.
In formula：A250- in 250mm gauge lengths sample elongation after fracture (%)；
Lu- gauge length of having no progeny (mm)；
L0- original gauge length (mm), takes 250mm.
(2) intensity and modulus of elasticity
Intensity is one of most important mechanical performance index of steel.The modulus of elasticity of steel is one of stiffness index of steel,
Modulus of elasticity is bigger, and its rigidity is bigger, and its deformation is smaller during stress；Conversely, modulus of elasticity is smaller, its rigidity with regard to smaller, by
Its deformation is bigger during power.
In triplicate, each every kind of bridge pull sling tests 10 with stainless steel steel wire for experiment.By tensile test at room temperature,
Obtain the various intensity indexs and modulus of elasticity of bridge pull sling stainless steel steel wire.The nonproportional cyclic straining of stainless reinforcing bar,
Tensile strength and modulus of elasticity.
(3) relaxation experiment
Relaxation test provides that test temperature scope exists according to " metal stresses relaxation test method " (GB/T10120-2013)
19.3-21.2 DEG C, according to theoretical initial load 15.10KN (stress 770MPa, according to Rb=1120 70%), it is actual initial
Load 15.11kN (stress 770Pa), 100 hours test periods.Calculate stress relaxation rate extrapolated value (extrapolation 1000 in 1000 hours
The stress relaxation rate of hour).In triplicate, each every kind of bridge pull sling tests 10 with stainless steel steel wire for experiment.
1.2 fatigue test
According to specification GB/T15248-2008《Metal material axial direction constant amplitude low-cycle fatigue test method》And GB/
T17101-2008《Bridge cable hot-dip galvanizing steel wire》Regulation, to the bridge pull sling stainless steel of each embodiment and comparative example
Steel wire carries out fatigue test.Sample is uiform section sample, and the guage section of specimen finish is identical with retained part；Sample work department
Divide the axiality with retained part within 0.01mm.The major parameter of fatigue test process spectrum is test force peak value fmax=
1250 × 0.45=562.5MPa, test force valley fmin=562.5-360=202.5MPa, test force intermediate valueWith test force amplitude fWidth=360MPa.
Experiment is carried out in laboratory, 10-35 DEG C of test temperature.In triplicate, every kind of bridge pull sling is used every time for experiment
Stainless steel steel wire tests 10.
According to《Bridge cable hot-dip galvanizing steel wire》(GB/T 17101-2008) is provided, tradition draws hoist cable zinc-coated wire
Fatigue behaviour is not less than 2,000,000 times.The bridge pull sling of each embodiment and comparative example with the mechanical property of stainless steel steel wire such as
Shown in table 1.As a result show, the bridge pull sling of embodiment 1 and embodiment 2 is non-with the tensile strength Rm and regulation of stainless steel steel wire
Ratio extension strength Rp0.2It is above the bridge pull sling stainless steel steel wire of comparative example 1 with modulus of elasticity, extension property of having no progeny,
Stress relaxation ability and fatigue behaviour are significantly better than the bridge pull sling stainless steel steel wire of comparative example 1, embodiment 1 and embodiment
The elongation after fracture A of 2 bridge pull sling stainless steel steel wire250It is the bridge pull sling stainless steel steel wire of comparative example 1
2.3 times, the stress relaxation rate of the bridge pull sling stainless steel steel wire of embodiment 1 and embodiment 2 is that the bridge of comparative example 1 is drawn
For hoist cable with 0.6 times of stainless steel steel wire, the bridge pull sling of embodiment 1 and embodiment 2 is equal with the fatigue strength of stainless steel steel wire
It is the bridge pull sling of comparative example 1 with 1.7 times of stainless steel steel wire.The bridge pull sling stainless steel of embodiment 1 and embodiment 2
The tensile strength Rm and Proof strength of non-proportional Rp of steel wire0.2With the bridge pull sling of modulus of elasticity and comparative example 2 with stainless
Steel steel wire is similar, and extension property of having no progeny is less than the bridge pull sling stainless steel steel wire of comparative example 2, embodiment 1 and embodiment 2
Bridge pull sling is significantly better than the bridge pull sling of comparative example 2 with or not the stress relaxation ability and fatigue behaviour of stainless steel steel wire
Become rusty steel steel wire, the elongation after fracture A of the bridge pull sling stainless steel steel wire of embodiment 1 and embodiment 2250It is comparative example 2
Bridge pull sling is with 3.3 times of stainless steel steel wire, the stress of the bridge pull sling stainless steel steel wire of embodiment 1 and embodiment 2
Relaxation rate be the bridge pull sling of comparative example 2 with 0.6 times of stainless steel steel wire, the bridge pull sling of embodiment 1 and embodiment 2
It is the bridge pull sling of comparative example 2 with 1.7 times of stainless steel steel wire with the fatigue strength of stainless steel steel wire.Embodiment 1 and reality
It is similar with stainless steel steel wire with the modulus of elasticity of stainless steel steel wire and the bridge pull sling of comparative example 3 to apply the bridge pull sling of example 2,
The bridge drawing that the bridge pull sling of embodiment 1 and embodiment 2 is substantially less than comparative example 3 with the elongation after fracture of stainless steel steel wire is hung
Rope stainless steel steel wire, but the tensile strength Rm and regulation of the bridge pull sling of embodiment 1 and embodiment 2 stainless steel steel wire
Nonproportional cyclic straining Rp0.2, stress relaxation ability and fatigue behaviour be significantly better than the bridge pull sling stainless steel of comparative example 3
The tensile strength Rm of the bridge pull sling stainless steel steel wire of steel wire, embodiment 1 and embodiment 2 is that the bridge of comparative example 3 is drawn
Hoist cable is with 1.4 times of stainless steel steel wire, the regulation disproportional of the bridge pull sling stainless steel steel wire of embodiment 1 and embodiment 2
Extension strength Rp0.2Be comparative example 3 bridge pull sling with 1.3 times of stainless steel steel wire, the bridge of embodiment 1 and embodiment 2
The stress relaxation rate for drawing hoist cable stainless steel steel wire is the bridge pull sling of comparative example 3 respectively with the 0.7 of stainless steel steel wire and 0.6
Again, the fatigue strength of the bridge pull sling stainless steel steel wire of embodiment 1 and embodiment 2 is that the bridge drawing of comparative example 3 is hung respectively
Rope 1.9 times of stainless steel steel wire and 2.0 times.
The mechanical property of table 1, bridge pull sling stainless steel steel wire
2nd, technological property test
Technological property test mainly investigates material plasticity deformability, the respectively experiment such as winding, alternating bending and torsion,
Items experiment separately designs as follows：
(1) wrapping test
What wrapping test was tested is the ability that bridge pull sling bears plastic deformation with stainless steel steel wire in winding process,
It is that bridge pull sling is closely wound regulation spiral with stainless steel steel wire test on the plug for meeting correlation standard diameter
The number of turns.Steel wire winding experiment is pressed《Metal material material winds test method》(GB/T 2976-2004) is carried out, and winding plug is straight
Footpath is 15mm.
Test temperature is 10 DEG C -35 DEG C, and experiment process is as follows：
1. sample should be in the case of no any torsion, with the constant speed per second for being no more than a circle along hand of helix
Wind around on plug, if necessary, speed of wrap can be slowed down, influence result of the test to prevent temperature from raising.
2. it can apply to ensure that winding is close, during winding in sample free end and be no more than the corresponding force value of sample tensile strength
5% tightening force.
3. the often circle of winding 1, specimen surface is estimated, sees whether Steel Wire Surface ftractures.
In triplicate, each every kind of bridge pull sling tests 10 with stainless steel steel wire for experiment.
(2) alternating bending test
Alternating bending test is bridge pull sling stainless steel steel wire alternating bending plastic deformation ability.Alternating bending tries
Test the regulation progress by " metal material wire rod alternating bending test method " (GB/T 238-2013), it is desirable to which test specimen is straight, surface
Not damaged, test temperature are 23 DEG C ± 5 DEG C, and sample free end 90-degree bent is returned again to original position as curved for the first time
It is bent.Carry out continuously and alternating bending incessantly round about successively.Bending operation with it is per second be no more than once at the uniform velocity
Rate is steadily carried out without impact.Specimen surface is observed after off-test and does not produce macroscopic crackle, then pass the test.If examination
Sample is broken, and is not counted in number of bends for the last time.Every kind of bridge pull sling bends arc radius with the selection of stainless steel steel wire
15mm.In triplicate, each every kind of bridge pull sling tests 10 with stainless steel steel wire for experiment.
(3) torsion test
Plastic deformation ability when what torsion test was tested is bridge pull sling stainless steel steel wire torsion, this experiment use
Unidirectional torsion test, its principle are to 360 ° of a direction Rotating with Uniform, as once reversing by sample around axis.Torsional specimen
Length be 100 times of specimen finish.Often reverse 1 time, estimate specimen surface, see whether Steel Wire Surface ftractures.Experiment repeats three
Secondary, each every kind of bridge pull sling tests 10 with stainless steel steel wire.The bridge pull sling of each embodiment and comparative example is with stainless
The processing performance of steel steel wire is as shown in table 2.
The processing performance of table 2, bridge pull sling stainless steel steel wire
Note：It is the indehiscent number of turns of Steel Wire Surface to wind the number of turns.
3rd, corrosive nature
(1) spot corrosion is tested
The corrosive nature of the bridge pull sling stainless steel steel wire of each embodiment and comparative example is determined as follows.
Determination test equipment uses the M273A type electrochemical corrosion measuring instruments of EG＆G companies of U.S. production；Assay method and
Condition is as follows：
Polarization method is dynamic potential polarization；Sweep speed is 20mV/min；Reference electrode is saturated calomel electrode；Auxiliary
Electrode is graphite electrode；Test medium is 3.5% sodium chloride solution；Test temperature is 31 DEG C；Measurement result is as shown in table 3, real
The bridge pull sling for applying example 1, embodiment 2, comparative example 1, comparative example 2 and comparative example 3 is differed with the pitting potential of stainless steel steel wire
Less, respectively 150mV, 148mV, 144mV, 142mV and 143mV, have obvious passive behavior.Using identical method pair
Zinc-coated wire (production of Tianjin galvanized steel Silk Mill) carries out pitting potential measure, and the pitting potential for measuring zinc-coated wire is -200mV,
As can be seen that bridge pull sling prepared by the embodiment of the present invention 1,2 is higher than zinc-coated wire with the pitting potential of stainless steel steel wire
Pitting potential, and pitting potential is higher is less susceptible to corrode, bridge pull sling stainless steel steel prepared by the embodiment of the present invention 1,2
The pitting resistance of silk is more excellent than zinc-coated wire.
(2) neutral salt spray test
The corrosivity of the bridge pull sling stainless steel steel wire of each embodiment and comparative example is determined using neutral salt spray test
Energy.Control is used as using common zinc-coated wire simultaneously.The key instrument that neutral salt spray test uses includes salt spray test chamber, intelligent testing
Test system and pH meter.Wherein salt spray test chamber is CK/YW-120C intelligent automatic salt spray test chambers, by Beijing Qie Ke companies
Production, interior case size is 1200mm × 800mm × 500mm.The operation principle of salt fog cabinet is to draw salt solution using Bai Nute principles
After be atomized, compressed air is wetted via the bubble column that it leads in nozzle way, and nozzle is by etchant solution and air
Corrosivity aerosol is atomized into, so as to form the corrosive environment of test material.Intelligent test system is the production of long alluvial gold code company
Test system, for being controlled to the stress of sensor.When configuring salt solution, the pH value of solution is tested using pH meter.
Steel wire is soaked into 24h in the HCl solution that concentration is 10% before experiment, steel wire is used under the washing away of clear water after taking-up
Brush most surface iron rust, in limewash and surface residual hydrochloric acid, then rinsed well with clear water.Dried in an oven after wiping
4h, then 4h is deposited in drier.The electronic balance for being 0.1g with precision weighs weight, and precision is that 0.5mm steel ruler measures length
Degree.
This experiment is in strict accordance with national standard《Artificial atmosphere corrosion test salt spray test》(GB/T 10125-2012) enters
OK.Chemical reagent required for being equipped with salt fog is the pure NaCl of chemistry, and it is 55g/L solution to be equipped to concentration by distilled water.Chamber
Inside put two salt fog collectors, one one is funnel shaped away from nozzle, a diameter of 100mm close to nozzle, and area is about
80cm2, for determining average settlement rate, meet 80cm2Horizontal area on average settlement rate be 1.5mL/h ± 0.5mL/h will
Ask.The pH value control of collection liquid is 6.5~7.2, after going beyond the scope, is adjusted with pure HCl and NaOH is analyzed.
Neutral salt spray test carries out 40d.In triplicate, each every kind of bridge pull sling tests 10 with stainless steel steel wire for experiment
Root.Bridge pull sling takes out the steel wire of corrosion, according to international standard ISO with after the completion of stainless steel steel wire neutral salt spray test
8407-2009“Corrosion of metals and alloys—Removal of corrosion products from
Corrosion test specimens ", the solution that the formation of 1000mL distilled water is dissolved in 200mL concentrated nitric acids soak at room temperature
60min, rinsed after taking-up with clear water, and surface iron rust is eliminated with wire brush, after drying in oven, the electricity for being 0.1g with precision
Sub- balance weighs weight.
3.4.2 mass loss rate
Wire quality is weighed before and after corrosion, calculates mass loss rate.Mass loss rate=(before corrosion after quality-corrosion
Quality)/corrosion before quality × 100%.The bridge pull sling of each embodiment and comparative example tests 10 with stainless steel steel wire.
The bridge pull sling of each embodiment and comparative example is as shown in table 3 with the mass loss rate of stainless steel steel wire.As a result table
It is bright, embodiment 1, embodiment 2, comparative example 1, comparative example 2 and comparative example 3 bridge pull sling stainless steel steel wire mass loss
Rate is more or less the same, and far below common zinc-coated wire, illustrates embodiment 1, embodiment 2, comparative example 1, comparative example 2 and comparative example 3
Bridge pull sling be better than common zinc-coated wire with the decay resistance of stainless steel steel wire.
The corrosive nature of the bridge pull sling of table 3. stainless steel steel wire
| Bridge pull sling stainless 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. the preparation method of stainless steel steel wire, the stainless steel steel wire, by percentage to the quality, contain 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 iron and inevitable impurity；
The preparation method of the stainless steel steel wire comprises the following steps：
A, steel billet is smelted；
B, heating steel billet；
C, billet rolling, steel wire rod is obtained；
D, spin；
E, cool down；
F, it is heat-treated；
G, pickling, steel wire rod after pickling is obtained；
H, cold-drawn, stainless steel steel wire is obtained；
It is characterized in that：In the C, a diameter of 6.5mm of steel wire rod；The stainless steel gauge of wire is 5.6mm；
The cold-drawn obtains a diameter of 5.6mm stainless steel steel wire for steel wire rod after the pickling is carried out into a time cold-drawn.
2. preparation method according to claim 1, it is characterised in that：In the F, heat treatment temperature is 1000 DEG C, at heat
It is 1.5 hours to manage the time.
3. preparation method according to claim 1 or 2, it is characterised in that：In the B, billet heating temperature is 1260 DEG C,
The heating steel billet time is 3.5 hours.
4. preparation method according to claim 1 or 2, it is characterised in that：The stainless steel steel wire, with mass percent
Meter, contains 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.
5. preparation method according to claim 1 or 2, it is characterised in that：
The smelting steel billet includes：
(1) electric furnace smelting：Steel scrap, nickel and alloy addition electric furnace are smelted, treat in electric furnace crude steel Hydrochemical Composition reach as
Subscript is tapped on time, obtains just steel-making water：C weight/mass percentage composition is 1.30-1.80%, and Mn weight/mass percentage composition is 8.5-
Weight/mass percentage composition of 12.5%, the P weight/mass percentage composition less than or equal to 0.028%, S is less than or equal to 0.025%, Cr quality
Percentage composition is 17.0-22.0%, and Ni weight/mass percentage composition is 1.0-2.0%；
(2) argon oxygen decarburizing furnace refines：Heat of oxidation smelting is first carried out to the just steel-making water, it is rear to carry out reduction period smelting, after reduction
Add slag former and carry out slag making, and add after fine setting composition is finely adjusted to target component and tap, obtain refined molten steel；Wherein,
Heat of oxidation smelting is blown into mixed gas, and the mixed gas is by N2And O2According to (2-4):1 volume ratio composition；Reduction period is smelted
Middle whole nitrogen blowing is smelted；
(3) using continuous casting working procedure casting steel billet, steel billet is obtained；
In (1), alloy is ferrochrome and ferromanganese.
6. preparation method according to claim 1 or 2, it is characterised in that：The pickling is carried out with nitration mixture, and the nitration mixture is
By nitric acid, hydrofluoric acid and water according to 4:4:The solution of 92 volume ratio composition.
7. application of any described preparation method in bridge pull sling is prepared in claim 1 to 6.
8. any described preparation method is preparing application of the bridge pull sling in stainless steel steel wire in claim 1 to 6.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4946644A (en) * | 1989-03-03 | 1990-08-07 | Baltimore Specialty Steels Corporation | Austenitic stainless steel with improved castability |
| 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 |
| JP2014145123A (en) * | 2013-01-30 | 2014-08-14 | Bridgestone Corp | Method of producing high strength steel wire |
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2016
- 2016-04-28 CN CN201610274796.9A patent/CN105839031B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4946644A (en) * | 1989-03-03 | 1990-08-07 | Baltimore Specialty Steels Corporation | Austenitic stainless steel with improved castability |
| 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 |
| JP2014145123A (en) * | 2013-01-30 | 2014-08-14 | Bridgestone Corp | Method of producing high strength steel wire |
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