CN101775551A - Manufacture method of novel marine corrosion resistance stainless steel and steel cable thereof - Google Patents
Manufacture method of novel marine corrosion resistance stainless steel and steel cable thereof Download PDFInfo
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- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 25
- 229910052804 chromium Inorganic materials 0.000 description 13
- 239000010949 copper Substances 0.000 description 11
- 239000011572 manganese Substances 0.000 description 11
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 10
- 239000013535 sea water Substances 0.000 description 9
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- 230000003628 erosive effect Effects 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
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- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 description 1
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- Heat Treatment Of Steel (AREA)
Abstract
The invention provides a manufacture method of novel marine corrosion resistance stainless steel and a steel cable thereof. The marine corrosion resistance stainless steel comprises chemical compositions in the respective mixture ratio: less than 0.03 of C, less than 0.80 of Si, less than 0.50 of Mn, less than 0.03 of P, less than 0.01 of S, 22.0 to 25.0 of Cr, 13.0 to 15.0 of Ni, 3.0 to 5.0 of Mo, 2.0 to 4.0 of Cu, 0.10 to 0.20 of Nb, 0.30 to 0.45 of N, 0.03 to 0.06 of RE and the balance of Fe and unavoidable impurities. Steel wires required by the steel cable carry out electrolytic polishing processing before stranding. Compared with 316 stainless steel cables under the conditions of the same structure and the same cable diameter, the steel cable manufactured by the method of the invention has the advantages that the breaking force of the whole cable is improved by 3 to 4 KN, at the same time, the marine corrosion resistance annual corrosion speed rate in the environment such as marine atmosphere, splash zones, tidal zones, deep sea and the like is improved by more than ten times, and the maximum annual corrosion resistance depth is reduced by more than 5 times.
Description
Technical field
The present invention relates to a kind of stainless steel and wireline manufacture method, particularly marine corrosion resistance stainless steel and wireline manufacture method thereof.Belong to the metal products technical field.
Background technology
Along with industry fast developments such as China's oceanographic engineering, oceangoing vessel, sea farming, salvages, annual about 150,000 tons of the various wireline that consume, this class wireline is mainly selected zinc-plated carbon steel production for use, also selects the productions of 304 (0Cr18Ni9) or 316 trade mark stainless steels such as (0Cr17Ni12Mo2) in recent years for use.
According to statistics, the wireline of selecting for use zinc-plated carbon steel to make, the life-span of using in seawater is very short,
Generally use, just can't use because of corrosion cracking less than 1 year.Simultaneously, because Control and Inclusion Removal such as MnS is not strict in China's producing stainless steel process, even adopt stainless steel wire ropes such as 304 or 316, it also is damaged by corrosion easily at seawater tidal range band, reduction of service life.In order to solve this technical barrier, the present invention has designed a kind of novel marine corrosion resistance stainless steel, and innovate from aspects such as smelting technology, wire production, wireline manufacture method, thereby reached seawater corrosion resistance stainless steel wire rope technical qualification, satisfied user's service requirements; The alternative import of this product has realized the target that marine corrosion resistance stainless steel silk rope domesticizes.
The key technical indexes is as follows: (pressing the GB/T9944-2002 stainless steel wire rope)
| Steel cord structure | Nominal diameter mm | Minimum breaking force KN |
| ??1×19(12+6+1) | ??0.6～6.0 | ??0.343～30.4 |
| ??6×7(6+1) | ??0.45～8.0 | ??0.142～40.6 |
| ??6×19(b)(12+6+1) | ??1.6～28.5 | ??1.85～474 |
Fatigue lifetime 70000-130000 number;
Corrosion-resistant result's contrast in natural sea-water: (hanging test in 3 years seawater)
| The trade mark | Corroded area % | Maximum corrosion depth mm/a |
| ??0Cr17Ni12Mo2(316) | ??50～80 | ??0.27 |
| ??00Cr23Ni14Mo4Cu3NbNRE | ??0～＜10 | ??0.05 |
Summary of the invention
1, the chemical ingredients of a kind of scientific and reasonable steel of design, its mass percent consists of: C＜0.03, Si＜0.80, Mn＜0.50, P＜0.03, S＜0.01, Cr 22.0-25.0, Ni 13.0-15.0, Mo 3.0-5.0, Cu 2.0-4.0, Nb 0.10-0.20, N 0.30-0.45, RE 0.03-0.06, surplus is Fe and unavoidable impurities.This grade of steel is 00Cr23Ni14Mo4Cu3NbNRE.
2, the optimization chemical ingredients of steel, its mass percent consists of: C＜0.03, Si＜0.50, Mn＜0.30, P＜0.02, S≤0.05, Cr 23.0-24.0, Ni 13.0-14.0, Mo 4.0-5.0, Cu3.0-4.0, Nb 0.12-0.18, N 0.30-0.40, RE 0.03-0.05, surplus is Fe and unavoidable impurities.
Steel grade chemical composition design theoretical foundation is following two formula:
1) the stainless steel equivalent of anti-spot corrosion PRE value
PRE＝Cr％+3.3×Mo％+16×N％-Mn
2) stainless steel corrosion resistance index GI
GI＝Cr％+3.6×Ni％+4.7×Mo％+11.5×Cu％；
The two combines PRE value and GI value and can find out that basically alloying elements such as Cr, Ni, Mo, N, Cu improve vital role aspect the anti-various corrosion of steel and the roughly anti-corrosion level that can weigh a stainless steel trade mark in stainless steel.
Narrate the main component design concept below:
1) C content determines
Carbon can improve stainless intensity, but significantly reduces the moulding of steel, toughness; Carbon combines with chromium in the steel, forms rich chromium carbide Cr at crystal boundary
23C
6, cause the chromium dilution and cause that intergranular corrosion and solidity to corrosion descend, so, it is generally acknowledged that its fraud is far longer than profit, therefore, austenitic stainless steel general requirement C≤0.03%th, correct.
2) Si content determines
When silicone content 〉=1.0%, meeting reduces the solidity to corrosion of Cr-Ni austenitic stainless steel and significantly improves the solid solution attitude intergranular corrosion susceptibility of steel, when silicone content＜0.8%, can improve anti-nitric acid of stainless steel and sulfuric acid corrosion performance, thus determine Si content＜0.8%th, reasonably.
3) Mn content determines
General Mn content≤2.0% in the austenite Cr-Ni stainless steel, the increase of Mn content can be from tissue for obtaining austenite for nickel, but can not be for nickel aspect solidity to corrosion, and from the stainless steel exponential formula of anti-the spot corrosion as seen, manganese is the reduction exponential of anti-spot corrosion element.This and Mn and S form MnS and are mixed in the corrosive medium and dissolve, and become spot corrosion, the crevice corrosion source is relevant.Some tests point out that when the Mn content in the 18-8 stainless steel was reduced to 0.1%, the corrosion-resistant ability of this steel was equivalent to contain the 316 stainless steel levels of 2%Mo.So Mn is controlled at＜the 0.5%th, science.
4) P content determines
P is commonly considered as detrimental impurity in stainless steel, wish to reduce as far as possible because P in steel along grain boundary segregation, even also can produce intergranular corrosion in the solid solution attitude.But in present smelting stainless steel method, no matter be that AOD or VOD refining have suitable difficulty to removing P, so general requirement≤0.03%th is more rational.
5) S content determines
The solubleness of S in stainless steel is very low, general＜0.01%, and excessive S will form the eutectic non-metallic inclusion of low melting points (＜1000 ℃) such as Mn, Ni in a large number, distribute along crystal boundary, usually cause the thermoplasticity of steel to descend, and pitting corrosion resistance reduces; Have the particular requirement seawater corrosion resistance and wish S content is defined as with steel≤0.010%, working control is≤0.005%.
6) Cr content determines
Chromium has decisive significance to the rustless property and the solidity to corrosion of steel, and along with the increase of chromium content in the stainless steel, not only solidity to corrosion improves in the oxidizing acid medium, and stainless steel (is comprised and contains Cl in chloride soln
-Atmosphere in and water medium) raising of local corrosion ability such as anticorrosion stress-resistant, spot corrosion, crevice corrosion all has material impact.Can find out that from the stainless steel content of anti-spot corrosion PRE value formula and corrosion resistance index GI formula Cr content is to the corrosion proof vital role of stainless steel.Seawater corrosion resistance with steel essence exactly to containing Cl
-The ionic aqueous solution and atomospheric corrosion thereof are necessary so Cr content is defined as 22%-25%.If Cr content is further improved again, in order to obtain stable austenitic stainless steel, just need improve Ni content again, so the cost of steel just need significantly improve, and in order to satisfy user's service requirements, the cost of saving steel also is important.
7) Ni content determines
Ni obtains stable austenite stainless steel important element, simultaneously Ni can significantly improve stainlessly mould, toughness and brittle transition temperature; In order to improve the solidity to corrosion of steel, it is not enough only containing Cr in the steel, must add the Ni of q.s in steel, and Cr was generally 2: 1 with the ratio of Ni, even bigger being advisable.Nickel can promote the stability of passivation film on stainless steel surface, from the capability of influence of the visible Ni of stainless steel corrosion resistance index GI formula.But Ni is valuable rare metal, costs an arm and a leg, and should save use, determines that Ni content is that 13%-15% is suitable.
8) Mo content determines
Big quantity research confirms, in maritime atmosphere, only depend on Cr, Ni content to improve and be difficult to prevent fully stainless corrosion, must add the Mo element of q.s,, the coupling of Mo element be arranged again along with the raising of Cr content, the solidity to corrosion of steel just increases significantly, because Mo can significantly promote chromium enrichment in passive film, thereby improved the solidity to corrosion of steel, this gets the nod in PRE and GI formula.But Mo is more valuable alloying element, determines that Mo content is that 3.0%-5.0% is correct.
9) Cu content determines
Cu can improve stainless rustless property and solidity to corrosion, demonstrates fully out from the GI formula.In Cu and the compound adding steel of Mo, effect is more obvious.The disperse of the ε intermetallic compound of rich copper is simultaneously separated out, the main means that still do not contain the PH Stainless Steel reinforcement of Cu, it also is the major cause that austenitic stainless steel is obtained antibacterial surface, the attaching organism effect is great in this antagonism seawater, because it is little that Cu content is lower than 2.0% effect, Cu content is not fairly obvious again greater than 4.0% effect, is science so Cu content is defined as 2.0%-4.0%.
10) Nb content determines
Niobium is as the strong stabilizing element that forms carbon, nitrogen compound in the stainless steel, is mainly used in to prevent that chromium in the steel combines the chromium that forms the chromium carbon compound and cause with carbon concentration from reducing and cause erosion resistance to descend niobium strengthening effect in addition in stainless steel simultaneously.So it is necessary adding Nb content 0.10%-0.20% in stainless steel.
11) N content determines
In the Cr-Ni austenitic stainless steel, add 0.10%N, can make the intensity of steel improve 60-100MPa, studies show that the 16-30 that nitrogen improves anti-spot corrosion, the slit and corrosion resistant of steel in stainless steel ability is about chromium doubly can illustrate this point from the anti-spot corrosion value of PRE formula.It is generally acknowledged that N can promote the enrichment of chromium in the passive film to improve the passivation ability of steel, the nitride of Fu Ge has further been strengthened the stability of passive film in the formation at the interface of metal and passive film.When containing N amount in the steel and surpass 0.50%, the mechanical property of steel and hot and cold processing characteristics significantly descend, and are rational so N content is defined as 0.30%-0.45%.
12) RE content determines
A series of researchs and facts have proved add the passive film densification that RE makes steel in steel, and with the bonding force grow of matrix, thereby improve the anti-sea atmosphere corrosion ability of steel.Simultaneously, RE has the ability of very strong deoxidation, desulfurization, suction hydrogen, reduces detrimental impurity in the steel; When RE content in the steel greater than 0.02% the time, mainly form RE
2O
2The S compound makes the inclusion balling Denaturation remarkable, when RE content greater than 0.07% the time, steel middle-weight rare earths inclusion is increased greatly, worsen the purity of steel, be correct so RE content is defined as 0.03%-0.06%.
In sum, 00Cr23Ni14Mo4Cu3NbNRE is a kind of novel marine corrosion resistance stainless steel, be Ultra-low carbon, low manganese, low-sulfur, high Cr, Ni, high molybdenum, high nitrogen, add beneficial elements such as Nb, RE, thereby guarantee that this steel all has anti-corrosion effect in the deep-sea, in tidal range band, splash(spray)zone and the marine atmosphere.
3,00Cr23Ni14Mo4Cu3NbNRE stainless steel and wireline manufacture method thereof
Following 00Cr23Ni14Mo4Cu3NbNRE stainless steel and wireline manufacture method thereof, be to further specify content of the present invention, but should not be construed as limitation of the present invention, without departing from the spirit and substance of the case in the present invention, to manufacture method of the present invention, modification that step or condition are done or replacement all belong to scope of the present invention.If do not specialize, the conventional means that used technique means or technical process are well known to those skilled in the art in the enforcement.
Embodiment 1
The rolling fabrication technique flow process of 00Cr23Ni14Mo4Cu3NbNRE stainless steel smelting
------------stripping off the skin,---------hot continuous rolling (thick, in, finish rolling) ф 5.5-16mm wire rod---batches that------pickling---inspections---packing is put in storage in thermal treatment (solid solution) to continuous casting 180mm square billet to VOD (refining furnace) to EAF (electric furnace) to furnace charge (steel scrap) in heating in flaw detection.
Embodiment 2
00Cr23Ni14Mo4Cu3NbNRE stainless steel wireline manufacturing process flow
ф 5.5mm wire rod---the epithelium processing---oven dry---rough (6-7 passage) ф 2.5mm---clean surface---dry up---solution heat treatment---in draw (9-11 passage) ф 1.2mm------------------take-up---check that---packing---put in storage to electropolishing to water tank wire drawing (19 mould) ф 0.6mm to clean annealing to close rope (6 * 7) rope footpath 5.8mm to twist with the fingers strand (1 * 7).
The foregoing description 1 and 2 common process manufacturing technology means do not describe in detail at this, and key manufacture involved in the present invention is as follows:
1), the SS-VOD method is adopted in external refining, promptly with 2 above gas permeable bricks or with stainless steel heat-resistant steel pipe Argon or the nitrogen blowing of 3-6 root (ф 2-4mm), play the violent stirring molten steel and increase the N alloying action, thus can production Ultra-low carbon (C＜0.03%), super low sulfur (S＜0.01%) stainless steel.
The VOD stove is made up of vacuum tank (comprising vacuum evacuating system), ladle, oxygen blast system and powdered alloy interpolation equipment.When carbon content reached 0.08%, vacuum tightness required to reach 4.0 * 10
3Stop oxygen blast during Pa, utilize the oxygen in the molten steel to carry out vacuum decarburization, require that end point carbon is low more, vacuum tightness is also low more, the general 15-30 of decarburization time minute.Reach and add slag former (CaO, CaF) behind the end point carbon and reductor carries out reduction refining.The judgement of end point carbon adopts effluent gas analysis method and gas phase to decide the carbon method.
Because the VOD external refining is to smelt under vacuum, thus in the steel obnoxious flavour be mingled with all than the outer smart stove of AOD stove lack a lot, please see the following form.
AOD stove and the contrast of VOD stove steel purification
2), VOD external refining reduction period main points are the adding method and the addition sequence of rare earth, the RE powder will wrap up with iron sheet, when liquid steel temperature reaches 1570-1610 ℃, adopt the pre-deoxidation of Si-Fe powder earlier, use the aluminium powder final deoxygenation then, be blown into N gas alloying simultaneously, when [N] content reaches regulation content (N＞0.30%), add the Nb-Fe powdered alloy earlier, add the RE powder at last, the RE add-on is decided on [S] content in the steel, and the ratio of [RE]/[S] requires to reach 3 times and is advisable, and [RE] content is controlled between the 0.03%-0.06% in the final steel.
Embodiment 3
Steel wire adopts electropolishing after the water tank wire drawing, twists with the fingers thigh again and closes rope, and this is the most important process innovation point of the present invention.The Stainless Steel Wire of electropolishing and steel cable surface all have best erosion resistance, reason is that electropolishing both can be removed stainless steel surface dirt and impurity, poor chromium layer and non-metallic inclusion, make the Steel Wire Surface roughness reduce by 50%, make the surface of steel wire both bright, level and smooth, clean, have high passivation attitude stability again, thereby had high corrosion resistance.This also can find out from test-results.Be that 0Cr17Ni12Mo2 (316) different surface treatment is to corrosion resistance nature comparing result in natural sea-water below.(under the room temperature)
| Code name | Surface treatment | Corroded area (%) | Maximum corrosion dark (mm) |
| ??A | Cold drawn annealing | ??100 | ??1.33 |
| ??B | The A+ electropolishing | ??＜10 | ??0.13 |
| ??C | Pickling | ??＜60 | ??0.98 |
1) trade mark and chemical ingredients (mass percent %)
2) performance index contrast
| The trade mark | Rope structure and diameter mm | Whole rope tension strength at break (minimum) KN | Anti-corrosion speed mm/a |
| ??0Cr17Ni12Mo2(316) | ??6×7，d＝6.0 | ?19.6 | ??0.10 |
| ??00Cr23Ni14Mo4Cu3NbNRE | ??6×7，d＝6.0 | ?23.1 | ??0.01 |
Embodiment 4
1) trade mark and chemical ingredients (mass percent %)
2) performance index contrast
| The trade mark | Rope structure and diameter mm | Whole rope tension strength at break (minimum) KN | Anti-corrosion speed mm/a |
| ??0Cr17Ni12Mo2(316) | ??6×7，d＝6.0 | ??18.6 | ??0.12 |
| ??00Cr23Ni14Mo4Cu3NbNRE | ??6×7，d＝6.0 | ??22.5 | ??0.011 |
Claims (4)
1. novel marine corrosion resistance stainless steel, it is characterized in that described stainless chemical ingredients mass percent consists of: C＜0.03, Si＜0.80, Mn＜0.50, P＜0.03, S＜0.01, Cr22.0-25.0, Ni 13.0-15.0, Mo 3.0-5.0, Cu 2.0-4.0, Nb 0.10-0.20, N0.30-0.45, RE 0.03-0.06, surplus is Fe and unavoidable impurities.
2. a kind of novel marine corrosion resistance stainless steel according to claim 1, it is characterized in that stainless chemical ingredients mass percent consists of: C＜0.03, Si＜0.50, Mn＜0.30, P＜0.02, S≤0.005, Cr 23.0-24.0, Ni 13.0-14.0, Mo 4.0-5.0, Cu 3.0-4.0, Nb0.12-0.18, N 0.30-0.40, RE 0.03-0.05, surplus is Fe and unavoidable impurities.
3. the manufacture method of a marine corrosion resistance stainless steel as claimed in claim 1, this method comprises smelting, casting, rolling, polishing, it is characterized in that smelting technology interalloyization order and Nb, N, RE iron alloy adding method and condition may further comprise the steps:
1), adopt SS-VOD external refining and alloying step:
The SS-VOD method is adopted in external refining, promptly be blown into argon gas or nitrogen with 2 above gas permeable bricks or with the stainless heat-resistance steel pipe of 3-6 root (Φ 2-4mm), play the violent stirring molten steel and increase the N alloying action, thereby can produce the stainless steel of Ultra-low carbon (C＜0.03%), super low sulfur (S＜0.01%), the while rises again and increases the N alloying action.
In addition, because of the VOD stove is to smelt under vacuum condition, when carbon content reached 0.08%, vacuum tightness required to reach 4.0 * 10
3Stop oxygen blast during Pa, utilize the oxygen in the molten steel to carry out vacuum decarburization, require end point carbon low more, vacuum tightness is also low more, and decarburization time was generally 15-30 minute.Add slag former and reductor then and carry out reduction refining.
2), VOD external refining reduction period main points are the adding method and the addition sequence of rare earth, the RE iron alloy adopts powder and wraps up with iron sheet, when liquid steel temperature reaches 1570-1610 ℃, adopt the pre-deoxidation of Si-Fe powder earlier, use Al powder final deoxygenation then, be blown into the nitrogen alloying simultaneously, as [N] in the steel when content reaches prescribed value (N＞0.30%), add the Nb-Fe powdered alloy earlier, add the RE powder at last, the RE add-on is decided on [S] content in the steel, and the ratio of [RE]/[S] requires to reach 3 times and is advisable, and final RE content is between 0.03%-0.06%.
4. marine corrosion resistance stainless steel silk rope manufacture method as claimed in claim 1 comprises wire drawing, thermal treatment, sth. made by twisting thigh, closes operation such as rope, it is characterized in that, steel wire adopts the electropolishing processing before twisting with the fingers strand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010125991A CN101775551A (en) | 2010-03-09 | 2010-03-09 | Manufacture method of novel marine corrosion resistance stainless steel and steel cable thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010125991A CN101775551A (en) | 2010-03-09 | 2010-03-09 | Manufacture method of novel marine corrosion resistance stainless steel and steel cable thereof |
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| CN101775551A true CN101775551A (en) | 2010-07-14 |
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| CN201010125991A Pending CN101775551A (en) | 2010-03-09 | 2010-03-09 | Manufacture method of novel marine corrosion resistance stainless steel and steel cable thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103409679A (en) * | 2013-07-30 | 2013-11-27 | 青岛新力通工业有限责任公司 | Method for adding microalloy of zirconium and zirconium in smelting process |
| CN103498355A (en) * | 2013-10-14 | 2014-01-08 | 无锡通用钢绳有限公司 | Corrosion-resistant steel wire rope |
| CN107475640A (en) * | 2017-08-08 | 2017-12-15 | 永兴特种不锈钢股份有限公司 | A kind of preparation method of the austenitic heat-resistance steel of the anti-steam corrosion of high-lasting strength |
| CN108894037A (en) * | 2018-08-06 | 2018-11-27 | 江苏鸿泽不锈钢丝绳有限公司 | High tower fall arrest drag-line |
| CN111015018A (en) * | 2019-12-25 | 2020-04-17 | 江阴法尔胜泓昇不锈钢制品有限公司 | Production process of multi-strand stranded welding wire for maritime work |
| CN113981724A (en) * | 2021-09-26 | 2022-01-28 | 江苏亚盛金属制品有限公司 | High-strength corrosion-resistant steel wire rope for mooring in ocean engineering and manufacturing method thereof |
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| CN1148635A (en) * | 1995-10-25 | 1997-04-30 | 刘平清 | High corrosion-resisting austenite stainless steel |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103409679A (en) * | 2013-07-30 | 2013-11-27 | 青岛新力通工业有限责任公司 | Method for adding microalloy of zirconium and zirconium in smelting process |
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| CN103498355A (en) * | 2013-10-14 | 2014-01-08 | 无锡通用钢绳有限公司 | Corrosion-resistant steel wire rope |
| CN103498355B (en) * | 2013-10-14 | 2015-12-09 | 无锡通用钢绳有限公司 | A kind of corrosion-resistant steel wire rope |
| CN107475640A (en) * | 2017-08-08 | 2017-12-15 | 永兴特种不锈钢股份有限公司 | A kind of preparation method of the austenitic heat-resistance steel of the anti-steam corrosion of high-lasting strength |
| CN108894037A (en) * | 2018-08-06 | 2018-11-27 | 江苏鸿泽不锈钢丝绳有限公司 | High tower fall arrest drag-line |
| CN111015018A (en) * | 2019-12-25 | 2020-04-17 | 江阴法尔胜泓昇不锈钢制品有限公司 | Production process of multi-strand stranded welding wire for maritime work |
| CN111015018B (en) * | 2019-12-25 | 2022-02-08 | 江阴法尔胜泓昇不锈钢制品有限公司 | Production process of multi-strand stranded welding wire for maritime work |
| CN113981724A (en) * | 2021-09-26 | 2022-01-28 | 江苏亚盛金属制品有限公司 | High-strength corrosion-resistant steel wire rope for mooring in ocean engineering and manufacturing method thereof |
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Application publication date: 20100714 |