CN105420653A - Zn-Al-Mg alloy layer used for being hot-dipped to bridge steel wire surface and manufacturing method for Zn-Al-Mg alloy layer - Google Patents
Zn-Al-Mg alloy layer used for being hot-dipped to bridge steel wire surface and manufacturing method for Zn-Al-Mg alloy layer Download PDFInfo
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- CN105420653A CN105420653A CN201510867922.7A CN201510867922A CN105420653A CN 105420653 A CN105420653 A CN 105420653A CN 201510867922 A CN201510867922 A CN 201510867922A CN 105420653 A CN105420653 A CN 105420653A
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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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
- C22C18/04—Alloys based on zinc with aluminium as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/12—Aluminium or alloys based thereon
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/38—Wires; Tubes
Abstract
The invention relates to a Zn-Al-Mg alloy layer used for being hot-dipped to a bridge steel wire surface and a manufacturing method for the Zn-Al-Mg alloy layer. The alloy layer comprises, by mass, 30%-97% of Zn, 5%-60% of Al and 0.02%-11% of Mg, wherein the sum of the percentages of all the components is 100%. The manufacturing method includes the steps that a bridge steel wire is unoiled and derusted; the alloy layer is hot-dipped; and stabilizing treatment is conducted. According to the alloy plating layer, the corrosion resistance is superior to that of an existing zinc plating layer and that of an existing zinc aluminum alloy plating layer, the alloy plating layer is easy to use, meets the requirements of the special environments, such as the requirement for bridge steel wires in the marine corrosion atmosphere environment and has wide market prospects.
Description
Technical field
The invention belongs to steel wire coating and preparation method thereof field, particularly one is used for bridge steel wire surface heat immersion plating Zn-Al-Mg alloy layer and preparation method thereof.
Background technology
Along with the develop rapidly of bridge construction technology, bridge construction design is across footpath in continuous increase, and the application with the suspension bridge of unique advantage is more extensive.Across footpath increase and build the complexity of environment, the intensity of the main bearing carrier " main push-towing rope " of suspension bridge and solidity to corrosion are had higher requirement.The main coating of current bridge steel wire is zinc layers.By immersion, at the uniform zinc coating of outer hot dip process last layer of wire rod, certain protective role is played to matrix.The higher solidity to corrosion that causes of porosity due to zinc layers is lower, in a lot of field, zinc coating replace by aluminium zinc layer.But the composition of zinc-aluminum alloy coating causes setting range narrower by the impact of silk material preparation technology to a great extent, as for zinc aluminium false alloy coating, although its composition can adjust in relative broad range, owing to only comprising Zn and Al two kinds of elements, though its corrosion product is compared pure spelter coating to the self-enclosed effect of the hole in coating and is increased, limited efficiency.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of for bridge steel wire surface heat immersion plating Zn-Al-Mg alloy layer and preparation method thereof, and this alloy layer has the features such as porosity is low, corrosion resisting property good, application prospect is extensive.
One of the present invention is used for bridge steel wire surface heat immersion plating Zn-Al-Mg alloy layer, and the composition of described alloy layer is Zn30-97%, Al5-60%, Mg0.02-11% by mass percentage, and summation meets 100%.
Quality in described alloy layer unit surface is 120-410g/m
2.
Quality in described alloy layer unit surface is 190 ~ 350g/m
2.
Quality in described alloy layer unit surface is 210g/m
2.
Quality in described alloy layer unit surface is 320g/m
2.
The corrosion potential E of described alloy layer
coorfor-1.05 ~-1.10V, I
coorbe 1 ~ 5 × 10
-6acm
-2.
The polarization resistance of described alloy layer is 5000 ~ 8000 Ω cm
2.
A kind of preparation method for bridge steel wire surface heat immersion plating Zn-Al-Mg alloy layer of the present invention, comprising:
(1) process of surperficial row degreasing and rust removal is entered to bridge steel wire, ensure the smooth homogeneous of plating surface;
(2) hot dip galvanizing-Al-Mg alloy layer at 520-580 DEG C, obtains homogeneous Zn-Al-Mg alloy layer in Steel Wire Surface; Wherein, the composition of alloy layer is Zn30-97%, Al5-60%, Mg0.02-11% by mass percentage, and summation meets 100%; Wherein, the time of hot dip process is 30 ~ 60s;
(3) hot dip process terminates laggard line stabilization process, and processing parameter comprises: stabilization treatment tension force: 25% ~ 45% nominal breaking force; Stabilization treatment temperature: 360 DEG C ~ 420 DEG C.
In described step (2), the temperature of hot dip process is 560 DEG C, and the hot dip process time is 60s.
Hot dip process treatment process impacts the intensity of raw steel silk and toughness, therefore after hot dip process, designs one stabilizing treatment technique, and its principle is carry out low-temperaturetempering process to steel wire while applying tension force to steel wire, improves the strength and toughness of steel wire.
Finally carry out inspection of coating: Deposit appearance is smooth, color even, thickness is homogeneous, adopts nondestructive detecting instrument to detect thickness of coating, thickness and the qualified product introduction Packaging Shipping Procedures of surface quality.
By the hot dip process treatment process that improves (improve the composition of alloy for hot-dip, in traditional galvanizing system, incorporate Al, Mg element, strict control molten bath alloy composition and ratio within the specific limits.Simultaneously according to the composition of coating alloy, finely tune hot dip process temperature, temperature range is 520-580 DEG C, and preferable temperature is 560 DEG C, and the hot dip process time, proper extension was to 60s.); even, fine and close Zn-Al-Mg alloy layer is obtained in Steel Wire Surface; rich Al-Mg alloy phase, rich Zn-Al alloy phase and few Zn-Al-Mg alloy phase is there is in the weave construction of its coating; rich Al-Mg alloy phase and rich Zn-Al alloy alternate existence; work in coordination with and played the sacrificing protection effect of Zn-Al alloy phase and the passivation protection effect of Al-Mg alloy phase; Al-Mg alloy phase in coating forms netted hard framework, can play the effect stoping Zn-Al alloy corrosion.Due to adding of Mg, the Al-Mg hydroxide film that Mg and Al is formed is except the effect playing passive film, also the corrosion product accordingly with self sealing capability is generated after corrosion, the defect in coating is blocked together with the corrosion product of Zn, form finer and close corrosion scales, strengthen the self-enclosed effect of coating, coating is improved greatly in the corrosion resisting property in corrosion later stage.
The effect of each element is added in zinc coating:
Al: improve alloy casting performance, increases alloy flowability, crystal grain thinning, promotes solution strengthening, improves coating mechanical property; Reduce Zn to the response capacity of iron, reduce the erosion to ferrous material; Aluminium content controls 5.8 ~ 8.3% (because add other elements, having certain influence to overall flow).Mainly consider required intensity and mobility, good fluidity is the condition that acquisition one is complete, size is accurate, ganoid foundry goods is required.
Mg: reduce intergranular corrosion; Refining alloy tissue, thus the intensity increasing alloy; Improve the wear resistance of alloy.
By conservative control alloy layer composition and immersion, at the smooth homogeneous Zn-Al-Mg alloy layer of bridge steel wire surface treatment last layer, to replace the conventional zinc coating of bridge steel wire.Relative to zinc coating, the porosity of Zn-Al-Mg alloy layer is lower, and solidity to corrosion is higher, can adapt to more complicated with harsh climate environment.Al and Mg adds, and facilitates the grain refining of alloy layer inside, prevents the appearance of intergranular corrosion, improves the intensity of coating.Simultaneously after hot dip process, design one stabilizing treatment technique, reduce the impact of immersion on former intensity of steel wire and toughness, maintain the superstrength of steel wire, underrelaxation characteristic.Alloy layer provided by the invention, its solidity to corrosion is better than current zinc coating and zinc aluminum alloy coating, easy to implement, meets particular surroundings, as under marine corrosion atmosphere to the needs of bridge steel wire, there are wide market outlook.
The present invention is by improving Zn-Al alloy immersion, and add micro-Mg, bridge steel wire surface treatment last layer Zn-Al-Mg multi-elements alloying coating, have adjusted the structure and composition of coating, improve the corrosion resisting property of coating simultaneously.Simultaneously after hot dip process, design one stabilization process, reduce impact bridge intensity of steel wire and toughness caused because of immersion.
beneficial effect
Zn-Al-Mg alloy layer of the present invention, solidity to corrosion is better than current zinc coating and zinc aluminum alloy coating, easy to implement, meets particular surroundings, as under marine corrosion atmosphere to the needs of bridge steel wire, there are wide market outlook.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
In the present patent application, coating performance testing method is as follows:
1. bonding strength test.Bonding strength test experiments adopts CSS-44100 electronic universal tester to measure the resisting binding strength of coating and matrix.
2. neutral salt spray test
The even accelerated corrosion tests connecing sample is carried out in ATLASCCX2000 salt fog cabinet, salt mist experiment carries out according to GB-T10125-1997 standard, experiment condition: in (50 ± 5) g/L neutral NaCl watery solution of preparation, experimental temperature controls to carry out continuous salt fog in (35 ± 1) DEG C.First sample is placed in room temperature and places 48h, by sample and vertical direction be 20 ° respectively afterwards and be positioned on salt fog cabinet support, expose 5,15,30 and be greater than 30 days afterwards sample (according to the practical situation determination subsequent experimental time).After salt mist experiment, fall the deposition salt of surface attachment by washed with de-ionized water, after cold wind dries up, carry out surface corrosion state observation.
3. electrochemical property test
The electro-chemical test of alloy layer adopts CHI660 electrochemical workstation, preparation of coatings is become 1 × 1cm electrode, and adopt three-electrode system, reference electrode is saturated calomel electrode, is platinum electrode to electrode, and working electrode is coating sample.Corrosive medium is 3.5%NaCl solution, and before test, sample soaks 30min in the solution, measures after current potential is stable again.
Embodiment 1
(1) Steel Wire Surface process
Before hot dip process, Steel Wire Surface is processed, go out the impurity such as degreasing, oxide compound.
(2) hot dip process process
By strictly controlling hot dip process temperature (560 DEG C) and hot dip process time 50s, obtain homogeneous Zn-Al-Mg alloy layer in Steel Wire Surface.
Coating composition: Zn85%; Al14.5%, Mg0.5%
Quality of coating: 210g/m
2
Coating performance is tested:
Sticking power is tested: 16MPa;
Corrosion potential (E
corr)-1.10V, can play a good protection to steel wire, corrosion current (I
corr) 1.0 × 10
-6acm
-2, corrosion speed is slow, has good solidity to corrosion.
Resistance to red rust time (neutral salt spray test) > 10000 hours.
Embodiment 2
(1) Steel Wire Surface process
Before hot dip process, Steel Wire Surface is processed, go out the impurity such as degreasing, oxide compound.
(2) hot dip process process
By strictly controlling hot dip process temperature (530 DEG C) and hot dip process time 50s, obtain homogeneous Zn-Al-Mg alloy layer in Steel Wire Surface.
Coating composition: Zn75%; Al22.8%, Mg2.2%
Quality of coating: 210g/m
2
Coating performance is tested:
Sticking power is tested: 15.8MPa;
Corrosion potential (E
corr)-1.07V, can play a good protection to steel wire, corrosion current (I
corr) 1.2 × 10
-6a.cm
-2, corrosion speed is slow, has good solidity to corrosion.
Resistance to red rust time (neutral salt spray test) > 10000 hours.
Embodiment 3
(1) Steel Wire Surface process
Before hot dip process, Steel Wire Surface is processed, go out the impurity such as degreasing, oxide compound.
(2) hot dip process process
By strictly controlling hot dip process temperature (560 DEG C) and hot dip process time 30s, obtain homogeneous Zn-Al-Mg alloy layer in Steel Wire Surface.
Coating composition: Zn62%; Al35%, Mg3%
Quality of coating: 210g/m
2
Coating performance is tested:
Sticking power is tested: 14.7MPa;
Resistance to red rust time (neutral salt spray test) > 10000 hours.
Embodiment 4
(1) Steel Wire Surface process
Before hot dip process, Steel Wire Surface is processed, go out the impurity such as degreasing, oxide compound.
(2) hot dip process process
By strictly controlling hot dip process temperature (520) and hot dip process time 60s, obtain homogeneous Zn-Al-Mg alloy layer in Steel Wire Surface.
Coating composition: Zn53%; Al42.4%, Mg4.6%
Quality of coating: 210g/m
2
Coating performance is tested:
Sticking power is tested: 16.2MPa;
Corrosion potential (E
corr)-1.15v, can play a good protection to steel wire, corrosion current (I
corr) 1.0 × 10
-5a.cm
-2, corrosion speed is slow, has good solidity to corrosion.
Resistance to red rust time (neutral salt spray test) > 10000 hours.
Embodiment 5
(1) Steel Wire Surface process
Before hot dip process, Steel Wire Surface is processed, go out the impurity such as degreasing, oxide compound.
(2) hot dip process process
By strictly controlling hot dip process temperature (560 DEG C) and hot dip process time 60s, obtain homogeneous Zn-Al-Mg alloy layer in Steel Wire Surface.
Coating composition: Zn41.3%; Al56.5%, Mg2.2%
Quality of coating: 210g/m
2
Coating performance is tested:
Sticking power is tested: 15.2MPa;
Resistance to red rust time (neutral salt spray test) > 10000 hours.
Embodiment proves that alloy layer prepared by the present invention is relative to traditional zinc coating, and its solidity to corrosion is greatly improved, and preparation flow is easy, is applicable to industrial production, and has wide market application foreground.
Claims (9)
1. for a bridge steel wire surface heat immersion plating Zn-Al-Mg alloy layer, it is characterized in that, the composition of described alloy layer is Zn30-97%, Al5-60%, Mg0.02-11% by mass percentage, and mass percent sum is 100%.
2. one according to claim 1 is used for bridge steel wire surface heat immersion plating Zn-Al-Mg alloy layer, and it is characterized in that, the quality in described alloy layer unit surface is 120-410g/m
2.
3. one according to claim 2 is used for bridge steel wire surface heat immersion plating Zn-Al-Mg alloy layer, and it is characterized in that, the quality in described alloy layer unit surface is 190 ~ 350g/m
2.
4. one according to claim 3 is used for bridge steel wire surface heat immersion plating Zn-Al-Mg alloy layer, and it is characterized in that, the quality in described alloy layer unit surface is 210g/m
2.
5. one according to claim 3 is used for bridge steel wire surface heat immersion plating Zn-Al-Mg alloy layer, and it is characterized in that, the quality in described alloy layer unit surface is 320g/m
2.
6. one according to claim 1 is used for bridge steel wire surface heat immersion plating Zn-Al-Mg alloy layer, it is characterized in that, the corrosion potential E of described alloy layer
coorfor-1.05 ~-1.10V, I
coorbe 1 ~ 5 × 10
-6acm
-2.
7. one according to claim 1 is used for bridge steel wire surface heat immersion plating Zn-Al-Mg alloy layer, and it is characterized in that, the polarization resistance of described alloy layer is 5000 ~ 8000 Ω cm
2.
8., for a preparation method for bridge steel wire surface heat immersion plating Zn-Al-Mg alloy layer, comprising:
(1) degreasing and rust removal process is carried out to bridge Steel Wire Surface;
(2) hot dip galvanizing-Al-Mg alloy layer at 520-580 DEG C; Wherein, the composition of alloy layer is Zn30-97%, Al5-60%, Mg0.02-11% by mass percentage, and summation meets 100%; Wherein, the time of hot dip process is 30 ~ 60s;
(3) hot dip process terminates laggard line stabilization process, and processing parameter comprises: stabilization treatment tension force: 25% ~ 45% nominal breaking force; Stabilization treatment temperature: 360 DEG C ~ 420 DEG C.
9. a kind of preparation method for bridge steel wire surface heat immersion plating Zn-Al-Mg alloy layer according to claim 8, is characterized in that, in described step (2), the temperature of hot dip process is 560 DEG C, and the hot dip process time is 60s.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510867922.7A CN105420653B (en) | 2015-12-01 | 2015-12-01 | One kind is used for bridge Steel Wire Surface hot dip galvanizing Al Mg alloy-layers and preparation method thereof |
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|---|---|---|---|
| CN201510867922.7A CN105420653B (en) | 2015-12-01 | 2015-12-01 | One kind is used for bridge Steel Wire Surface hot dip galvanizing Al Mg alloy-layers and preparation method thereof |
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| CN105420653B CN105420653B (en) | 2018-03-23 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106521385A (en) * | 2016-11-22 | 2017-03-22 | 常州大学 | Two-step SuperDyma alloy hot dipping technology for structural steel |
| CN107058828A (en) * | 2017-06-27 | 2017-08-18 | 桂林理工大学 | With high intensity, high tenacity, the high Zn content deformation Al Zn alloys of low cost and preparation method |
| CN108239735A (en) * | 2018-01-16 | 2018-07-03 | 江苏法尔胜缆索有限公司 | High tough, permanent seal cooling bridge cable 1960MPa grades of Zn-Al Alloy Coated Steel Wires of major diameter |
| CN108359924A (en) * | 2018-04-10 | 2018-08-03 | 上海大学 | A kind of dip galvanized aluminum magnesium super-high strength steel and its preparation method and application |
| CN109944104A (en) * | 2019-04-25 | 2019-06-28 | 无锡市华锋车业部件有限公司 | A kind of manipulation wirerope and preparation method thereof |
| CN110218959A (en) * | 2019-05-07 | 2019-09-10 | 江苏东纲金属制品有限公司 | A kind of bridge cable high corrosion-resistant Zn90-Al10-Mg Alloy Coating Steel Wire |
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| US3505043A (en) * | 1969-01-08 | 1970-04-07 | Inland Steel Co | Al-mg-zn alloy coated ferrous metal sheet |
| WO2007108496A1 (en) * | 2006-03-20 | 2007-09-27 | Nippon Steel Corporation | Highly corrosion-resistant hot dip galvanized steel stock |
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| US3505043A (en) * | 1969-01-08 | 1970-04-07 | Inland Steel Co | Al-mg-zn alloy coated ferrous metal sheet |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106521385A (en) * | 2016-11-22 | 2017-03-22 | 常州大学 | Two-step SuperDyma alloy hot dipping technology for structural steel |
| CN107058828A (en) * | 2017-06-27 | 2017-08-18 | 桂林理工大学 | With high intensity, high tenacity, the high Zn content deformation Al Zn alloys of low cost and preparation method |
| CN108239735A (en) * | 2018-01-16 | 2018-07-03 | 江苏法尔胜缆索有限公司 | High tough, permanent seal cooling bridge cable 1960MPa grades of Zn-Al Alloy Coated Steel Wires of major diameter |
| CN108359924A (en) * | 2018-04-10 | 2018-08-03 | 上海大学 | A kind of dip galvanized aluminum magnesium super-high strength steel and its preparation method and application |
| CN109944104A (en) * | 2019-04-25 | 2019-06-28 | 无锡市华锋车业部件有限公司 | A kind of manipulation wirerope and preparation method thereof |
| CN110218959A (en) * | 2019-05-07 | 2019-09-10 | 江苏东纲金属制品有限公司 | A kind of bridge cable high corrosion-resistant Zn90-Al10-Mg Alloy Coating Steel Wire |
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| Publication number | Publication date |
|---|---|
| CN105420653B (en) | 2018-03-23 |
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