CN105088941A - Steel wire having polyurea protection coating and steel wire inhaul cables having polyurea protection coatings - Google Patents
Steel wire having polyurea protection coating and steel wire inhaul cables having polyurea protection coatings Download PDFInfo
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- CN105088941A CN105088941A CN201410200412.XA CN201410200412A CN105088941A CN 105088941 A CN105088941 A CN 105088941A CN 201410200412 A CN201410200412 A CN 201410200412A CN 105088941 A CN105088941 A CN 105088941A
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Abstract
The invention relates to a steel wire having a polyurea protection coating and steel wire inhaul cables having polyurea protection coatings. The steel wire having the polyurea protection coating is a steel wire having the polyurea protection coating and formed by a single bright steel wire and a polyurea protection coating I covering the outer circumference of the single bright steel wire, or a steel wire having the polyurea protection coating and a composite protection coating and formed by a single bright steel wire and a composite protection coating outside the single bright steel wire. The steel wire inhaul cables having the polyurea protection coatings are steel wire inhaul cables Ia and IIa having the polyurea protection coatings and formed by steel wires having the polyurea protection coatings and wrapping tapes wrapped outside the steel wires, and are steel wire inhaul cables having the polyurea protection coatings and multiple protection layers formed by single layer or double layers of HDPE sleeving tubes or by coating the outermost layers of the sleeving tubes with the polyurea protection coatings, outside the steel wire inhaul cables Ia and IIa having the polyurea protection coatings. The steel wire inhaul cables having the polyurea protection coatings are compact in structure, good in corrosion resistance, shock absorption performance, antiskid performance and abrasion resistance.
Description
Technical field
The present invention relates to a kind of steel wire and wire digging line thereof, particularly a kind of steel wire with protective coating and wire digging line.
Background technology
Compressor wire drag-line is the stressed member of a kind of key in bridge construction, requires to have higher anti-corrosive durability; Current prestressing force bridge wire digging line is manufactured with reference to standard GB/T/T18365-2001 " cable stayed bridge hot extruded polyethylene high tensile steel wire drag-line technical condition " usually.
The corrosion of compressor wire is the stress corrosion (belonging to couple corrosion category) under stress and corrosion compound action, and be characterized in first forming crackle in metal inside, internal fissure just forms stress after occurring and concentrates, and accelerates the development of crackle, and then produces heavy corrosion.Anticorrosion plating (painting) the layer steel of compressor wire are always on active service under the condition of corrosive medium, by the kind of topping, can be divided into on-metallic protective coating (being called coating), chemical coating and coat of metal (being called coating) three class.1, the nonmetallic coating of nonmetal protective coating prestressing steel mainly contains plastics, epoxy resin and anticorrosion grease three kinds at present, but the anti-aging problem of nonmetallic coating not yet solves, and its mechanical property is much lower compared with the coat of metal.Therefore, range of application is restricted.2, chemical coating is by chemical method, forms topping in metal surface, as the passivation of zinc layers, the oxidation of aluminium lamination, the phosphatization etc. of iron-based.Such topping is not often as single steel topping, but annexs with the coat of metal and use.3, metal coating coating is in couple corrosion, and first the metal being in anode is dissolved, and plates with the metal sprinkled compared with ironwork, as zinc, aluminium etc. in Steel Wire Surface for this reason.In the environment of corrosive medium, making zinc first be protected iron-based by dissolving, being called that anode coating is protected.Because zinc-plated (or Zn-Al alloy) exists " hydrogen embrittlement " phenomenon, reduce the strength grade of steel wire, always controversial.Therefore compressor wire anticorrosion is the significant problem to closing bridge engineering quality life-span, must strengthen truly feasible anti-corrosion measure, the massive losses brought to reduce compressor wire to lose efficacy in advance because corrosion causes for prestressing force steel wire.
Polyurea materials reacts by isocyanate component and amino-compound component a kind of elastomer substances generated, and is divided into pure polyureas and half polyureas, and the most basic characteristic of polyureas is exactly anticorrosion, waterproof, wear-resisting etc., is mostly used in space industry at present.
Summary of the invention
The object of the present invention is to provide a kind of steel wire with polyurea protection coating and wire digging line, the compressor wire drag-line of this band polyurea protection coating utilizes the excellent properties of polyurea materials, greatly can improve anticorrosion, the damping of wire digging line, cling property, postpone drag-line application life.
For solving the problem, the technical solution used in the present invention is: a kind of steel wire with polyurea protection coating, be made up of single bright steel wire and the protective coating be coated in outside single bright steel wire, the steel wire of the steel wire of this band polyurea protection coating or the band polyurea protection coating be made up of single bright steel wire and the polyurea protection coating I that is coated in single bright steel wire periphery, or the steel wire with the band polyurea protection coating of compound protective coating to be made up of the compound protective coating outside single bright steel wire and single bright steel wire, described compound protective coating is the epoxy coating be attached with in the periphery of single bright steel wire, galvanizing coating, plastic coating, anticorrosion grease coating, the surface attachment coating of oiliness wax or the coat of metal or coating and be coated in the compound protective coating that the polyurea protection coating I on surface attachment coating or coating formed jointly.
Its another relevant technical scheme is: a kind of wire digging line with polyurea protection coating, comprise n root steel wire and be wrapped in the band that is wrapped outside n root steel wire, described steel wire is the steel wire of the above-mentioned band polyurea protection coating of the present invention, wire digging line I a of the band polyurea protection coating that the steel wire that the wire digging line of described band polyurea protection coating comprises the band polyurea protection coating be made up of bright steel wire is formed or wire digging line II a of the band polyurea protection coating be made up of the steel wire of the band polyurea protection coating with compound protective coating; N be more than or equal to 1 integer.
Its further technical scheme is: the wire digging line of this band polyurea protection coating is outer at the band that is wrapped or the skin of the band that is wrapped being coated with polyurea protection coating II also has wire digging line I a1, II a1 of the band polyurea protection coating of an individual layer HDPE sleeve pipe formation or wire digging line I b1, II b1 of band polyurea protection coating.
Its further technical scheme be: the wire digging line of this band polyurea protection coating is wire digging line I a2, II a2 of the band polyurea protection coating that double-deck HDPE sleeve pipe that the skin being wrapped band that is outer at the band that is wrapped or that be coated with polyurea protection coating II is made up of internal layer HDPE sleeve pipe and outer HDPE sleeve pipe in addition is formed or is with wire digging line I b2, II b2 of polyurea protection coating.
The wire digging line of this band polyurea protection coating overlaps outer tube layer at individual layer HDPE to be also coated with wire digging line I a1c, II a1c of the band polyurea protection coating that one deck polyurea protection coating III is formed or wire digging line I b1c, II b1c of band polyurea protection coating.
The wire digging line of this band polyurea protection coating be the skin of outer HDPE sleeve pipe of double-deck HDPE sleeve pipe be also coated with wire digging line I a2c, II a2c of the band polyurea protection coating that one deck polyurea protection coating III is formed or wire digging line I b2c, II b2c of band polyurea protection coating.
The material of described polyurea protection coating is pure polyureas or half polyurea materials.
Owing to taking above technical scheme, the steel wire of the band polyurea protection coating of the present invention and the wire digging line of band polyurea protection coating and preparation method thereof have following characteristics and beneficial effect:
1. greatly can improve anticorrosion, the damping of wire digging line, cling property, postpone drag-line application life.
The steel wire combination body be made up of the steel wire of band polyurea protection coating due to the band polyurea protection coating wire digging line of the present invention forms, the steel wire of described band polyurea protection coating is made up of single bright steel wire and the protective coating be coated in outside single bright steel wire, protective coating outside the steel wire of this band polyurea protection coating or the polyurea protection coating being coated in single bright steel wire periphery or the epoxy coating be attached with in the periphery of single bright steel wire, galvanizing coating, plastic coating, anticorrosion grease coating, the surface attachment coating of oiliness wax or the coat of metal or coating and be coated in the compound protective coating that the polyurea protection coating on surface attachment coating or coating formed jointly, because polyurea materials has excellent abrasion resistance, impact resistance and damping property, be coated on the Steel Wire Surface of wire digging line matrix, its coating is continuous, fine and close, can accomplish without seam, free of pinholes, moisture content in isolated air and the infiltration of oxygen, the epoxy coating that steel wire and Steel Wire Surface are attached with can be protected, plastic coating or anticorrosion grease coating not easily aging, the easy loss of galvanizing coating can be slowed down, be subject to the impact of the local defects such as pin hole, greatly improve the antiseptic power of such wire digging line, and increase its anti-wear performance, extend the application life of wire digging line, simultaneously polyurea materials has excellent tensile strength, the characteristic such as ageing-resistant, wear-resistant, the damage caused because constructing operation is improper in the manufacturing and installation process can be reduced, not easily produce cracking, obscission, greatly improve the antiseptic power of wire digging line, increase the service life.
2. between compact conformation, steel wire, frictional force is large, strengthens its cling property, and fatigue resistance improves:
All apply in the steel wire outmost surface of the band polyurea protection coating wire digging line of the present invention and gap or be filled with polyurea materials, because polyurea materials has the physical property of high abrasion, therefore, polyurea coating need not be very thick, when they are formed presstressed reinforcing steel, can in regular hexagon or the arrangement of unfilled corner Hexagonal close or the arrangement of other forms between each steel wire, compact conformation, the frictional force of wire digging line can be strengthened, strengthen its cling property; More be conducive to using under the operating mode of Sarasota both sides by out-of-balance force at bridge cable.
3. the present invention can improve the performance of existing coating or coating wire, thus also greatly improves the antiseptic power of wire digging line, and increases its abrasion resistance, extends the application life of wire digging line.
4. the steel wire of the band polyurea protection coating of the present invention can widen the scope of application of individual wire drag-line further.
Below, in conjunction with the accompanying drawings and embodiments the technical characteristic of the steel wire of the band polyurea protection coating of the present invention and the wire digging line of band polyurea protection coating is further described.
Accompanying drawing explanation
Fig. 1-1 ~ Fig. 1-2 is the structural representation of the steel wire of the band polyurea protection coating of the embodiment of the present invention one:
Fig. 1-1: the steel wire of the band polyurea protection coating be made up of bright steel wire;
Fig. 1-2: the steel wire with the band polyurea protection coating of compound protective coating.
Fig. 2-1 ~ Fig. 2-6 is structural representations of the wire digging line of the band polyurea protection coating of the embodiment of the present invention two:
Fig. 2-1: wire digging line I a of the band polyurea protection coating that the steel wire of the band polyurea protection coating be made up of bright steel wire is formed;
Fig. 2-2: wire digging line II a of the band polyurea protection coating be made up of the steel wire of the band polyurea protection coating with compound protective coating;
Fig. 2-3 ~ Fig. 2-4: wire digging line I a1, II a1 of the band polyurea protection coating that wire digging line I a of band polyurea protection coating, II a skin have monolayer polyethylene sheath to form;
Fig. 2-5 ~ Fig. 2-6: wire digging line I a2, II a2 of the band polyurea protection coating that wire digging line I a of band polyurea protection coating, II a skin have double-deck HDPE sheath to form.
Fig. 3-1 ~ Fig. 3-6 is outer structural representations being coated with the wire digging line of the band polyurea protection coating of polyurea protection coating II of the band that is wrapped of the embodiment of the present invention three:
Fig. 3-1: outer wire digging line I b being coated with the band polyurea protection coating of polyurea protection coating II of the band that is wrapped;
Fig. 3-2: outer wire digging line II b being coated with the band polyurea protection coating of polyurea protection coating II of the band that is wrapped;
Fig. 3-3 ~ Fig. 3-4: wire digging line I b1, II b1 of the band polyurea protection coating that wire digging line I b of band polyurea protection coating, II b skin have monolayer polyethylene sheath to form;
Fig. 3-5 ~ Fig. 3-6: wire digging line I b2, II b2 of the band polyurea protection coating that wire digging line I b of band polyurea protection coating, II b skin have double-deck HDPE sheath to form.
Fig. 4-1 ~ Fig. 4-4 is outer structural representations being coated with the wire digging line of the band polyurea protection coating of polyurea protection coating III of PE cover of the embodiment of the present invention four;
Fig. 4-1 ~ Fig. 4-2: the individual layer HDPE of wire digging line I a1, II a1 overlaps wire digging line I a1c, II a1c that outer tube layer is also coated with the band polyurea protection coating that one deck polyurea protection coating III is formed;
Fig. 4-3 ~ Fig. 4-4: the skin of outer HDPE sleeve pipe of the double-deck HDPE cover of wire digging line I a2, II a2 is coated with wire digging line I a2c, II a2c of the band polyurea protection coating that polyurea protection coating III is formed.
Fig. 5-1 ~ Fig. 5-4 is structural representations that the skin of the embodiment of the present invention five is coated with the wire digging line of the band polyurea protection coating of polyurea protection coating III:
Fig. 5-1 ~ Fig. 5-2: the individual layer HDPE of wire digging line I b1, II b1 overlaps wire digging line I b1c, II b1c that outer tube layer is also coated with the band polyurea protection coating that one deck polyurea protection coating III is formed;
Fig. 5-3 ~ Fig. 5-4: the skin of outer HDPE sleeve pipe of the double-deck HDPE cover of wire digging line I b2, II b2 is coated with wire digging line I b2c, II b2c of the band polyurea protection coating that polyurea protection coating III is formed.
In figure:
The single bright steel wire of 1-, 2-surface attachment coating or coating, 5-is wrapped band, 6-individual layer or internal layer HDPE sleeve pipe, the outer HDPE sleeve pipe of 7-;
31a-polyurea protection coating I, 31b-polyurea protection coating II, 31c-polyurea protection coating III;
41-is with the steel wire of polyurea protection coating, and 42-has the steel wire of the band polyurea protection coating of compound protective coating;
81a-is with wire digging line I a of polyurea protection coating, and 82a-is with wire digging line II a of polyurea protection coating;
81a1-is with wire digging line I a1 of polyurea protection coating, and 82a1-is with wire digging line II a1 of polyurea protection coating;
81a2-is with wire digging line I a2 of polyurea protection coating, and 82a2-is with wire digging line II a2 of polyurea protection coating;
81b-is with wire digging line I b of polyurea protection coating, and 82b-is with wire digging line II b of polyurea protection coating;
81b1-is with wire digging line I b1 of polyurea protection coating, and 82b1-is with wire digging line II b1 of polyurea protection coating;
81b2-is with wire digging line I b2 of polyurea protection coating, and 82b2-is with wire digging line II b2 of polyurea protection coating;
81a1c-is with wire digging line I a1c of polyurea protection coating, and 82a1c-is with wire digging line II a1c of polyurea protection coating;
81a2c-is with wire digging line I a2c of polyurea protection coating, and 82a2c-is with wire digging line II a2c of polyurea protection coating;
81b1c-is with wire digging line I b1c of polyurea protection coating, and 82b1c-is with wire digging line II b1c of polyurea protection coating;
81b2c-is with wire digging line I b2c of polyurea protection coating, and 82b2c-is with wire digging line II b2c of polyurea protection coating.
Detailed description of the invention
Embodiment one:
A kind of steel wire with polyurea protection coating, comprise the protective coating outside single bright steel wire and single bright steel wire, as Figure 1-1, the steel wire of this band polyurea protection coating is the steel wire 41 of the band polyurea protection coating be made up of single bright steel wire 1 and polyurea protection coating I 31a that is coated in single bright steel wire 1 periphery;
As shown in Figure 1-2, the steel wire of this band polyurea protection coating also can be the steel wire 42 with the band polyurea protection coating of compound protective coating be made up of the compound protective coating outside single bright steel wire 1 and single bright steel wire, and described compound protective coating is the surface attachment coating of epoxy coating, galvanizing coating, plastic coating, anticorrosion grease coating, oiliness wax or the coat of metal that bright steel wire 1 periphery is attached with or coating 2 and the compound protective coating being coated in polyurea protection coating I 31a on surface attachment coating or coating 2 and jointly being formed.
Embodiment two:
With a wire digging line for polyurea protection coating, comprise 19 steel wires and be wrapped in the band 5 that is wrapped outside 19 steel wires,
Described steel wire is the steel wire of the band polyurea protection coating described in embodiment one, the steel wire of this band polyurea protection coating comprises the protective coating outside single bright steel wire and single bright steel wire, or wire digging line I a-81a(of band polyurea protection coating that the steel wire 41 of the band polyurea protection coating be made up of single bright steel wire 1 and polyurea protection coating I 31a that is coated in single bright steel wire 1 periphery is formed is see Fig. 2-1); Also can be that wire digging line II a-82a(of the band polyurea protection coating that the steel wire 42 with the band polyurea protection coating of compound protective coating be made up of the compound protective coating outside single bright steel wire 1 and single bright steel wire is formed is see Fig. 2-2), described compound protective coating is the surface attachment coating of epoxy coating, galvanizing coating, plastic coating, the coat of metal, anticorrosion grease coating or the oiliness wax that bright steel wire 1 periphery is attached with or coating 2 and the compound protective coating being coated in polyurea protection coating I 31a on surface attachment coating or coating 2 and jointly being formed.
One as the embodiment of the present invention converts, the radical n forming the steel wire (41 42) of the band polyurea protection coating of the wire digging line of band polyurea protection coating can increase or reduce according to actual needs, be at least 1, many be 7-685 root
,the span of general n is: 1≤n≤1500.
As another conversion of the embodiment of the present invention, band 5 skin that is wrapped of wire digging line II a of wire digging line I a of band polyurea protection coating that the steel wire 41 of the described band polyurea protection coating be made up of single bright steel wire 1 and polyurea protection coating I 31a that is coated in single bright steel wire 1 periphery is formed or the band polyurea protection coating that the steel wire 42 of the band polyurea protection coating be made up of the compound protective coating outside single bright steel wire 1 and single bright steel wire is formed has wire digging line I a1 of the band polyurea protection coating be made up of individual layer HDPE sleeve pipe 6, II a1(is see Fig. 2-3 ~ Fig. 2-4), or wire digging line I a2 of the band polyurea protection coating to be made up of the double-deck HDPE sheath be made up of internal layer HDPE sleeve pipe 6 and outer HDPE sleeve pipe 7, II a2(is see Fig. 2-5 ~ Fig. 2-6).
Embodiment three:
A kind of wire digging line being coated with the band polyurea protection coating of polyurea protection coating II 31b at band 5 skin that is wrapped, as shown in figure 3-1, the wire digging line of this band polyurea protection coating is that wire digging line I a of band polyurea protection coating described in embodiment one or band 5 skin that is wrapped of II a are coated with wire digging line I b-81b of the band polyurea protection coating that polyurea protection coating II 31b is formed or II b-82b(see Fig. 3-1, Fig. 3-2).
As another conversion of the embodiment of the present invention, this band 5 skin that is wrapped is coated with I b of wire digging line of band polyurea protection coating that polyurea protection coating II 31b forms or the skin of II b has individual layer HDPE sleeve pipe 6 to form wire digging line I b1, II b1(of band polyurea protection coating see Fig. 3-3, Fig. 3-4).
As another conversion of the embodiment of the present invention, this band 5 skin that is wrapped is coated with I b of wire digging line of band polyurea protection coating or the skin of II b that polyurea protection coating II 31b forms by the double-deck HDPE sheath be made up of internal layer HDPE sleeve pipe 6 and outer HDPE sleeve pipe 7, forms wire digging line I b2, II b2(of band polyurea protection coating see Fig. 3-5, Fig. 3-6).
Embodiment four:
PE overlaps the outer wire digging line being coated with the band polyurea protection coating of polyurea protection coating III 31c, is that wire digging line I a or the PE cover skin being with the band individual layer HDPE sleeve pipe 6 of wire digging line II a of polyurea protection coating to be also coated with one deck polyurea protection coating III-31c formation of the band polyurea protection coating described in embodiment two is coated with wire digging line I a1c, II a1c(of the band polyurea protection coating of polyurea protection coating III 31c see Fig. 4-1, Fig. 4-2); Or the skin of the outer HDPE sleeve pipe with double-deck HDPE sleeve pipe is coated with wire digging line I a2c, II a2c(of the band polyurea protection coating that polyurea protection coating III 31c is formed see Fig. 4-3, Fig. 4-4).
Embodiment five:
PE overlaps the outer wire digging line being coated with the band polyurea protection coating of polyurea protection coating III 31c, is that the PE cover skin that band 5 skin that is wrapped described in embodiment three is coated with wire digging line I b of band polyurea protection coating of polyurea protection coating II 31b formation, the skin of the band individual layer HDPE sleeve pipe 6 of II b is also coated with one deck polyurea protection coating III 31c formation is coated with wire digging line I b1c, II b1c(of the band polyurea protection coating of polyurea protection coating III 31c see Fig. 5-1, Fig. 5-2
)or the skin of the outer HDPE sleeve pipe 7 with double-deck HDPE sleeve pipe is coated with wire digging line I b2c, II b2c(of the band polyurea protection coating of polyurea protection coating III 31c see Fig. 5-3, Fig. 5-4).
Claims (9)
1. the steel wire with polyurea protection coating, be made up of single bright steel wire and the protective coating be coated in outside single bright steel wire, it is characterized in that: the steel wire (41) of the steel wire of this band polyurea protection coating or the band polyurea protection coating be made up of single bright steel wire (1) and the polyurea protection coating I (31a) that is coated in single bright steel wire (1) periphery, or the steel wire (42) with the band polyurea protection coating of compound protective coating to be made up of the compound protective coating outside single bright steel wire (1) and single bright steel wire, described compound protective coating is the epoxy coating be attached with in the periphery of single bright steel wire (1), galvanizing coating, plastic coating, anticorrosion grease coating, the compound protective coating that the surface attachment coating of oiliness wax or the coat of metal or coating (2) are formed jointly with the polyurea protection coating I (31a) be coated on surface attachment coating or coating (2).
2. the wire digging line with polyurea protection coating, comprise n root steel wire and be wrapped in the band that is wrapped outside n root steel wire, it is characterized in that: described steel wire is the steel wire of band polyurea protection coating according to claim 1, wire digging line I a of the band polyurea protection coating that the steel wire (41) that the wire digging line of described band polyurea protection coating comprises the band polyurea protection coating be made up of bright steel wire is formed or wire digging line II a of the band polyurea protection coating be made up of the steel wire (42) of the band polyurea protection coating with compound protective coating; N be more than or equal to 1 integer.
3. a kind of wire digging line with polyurea protection coating according to claim 2, is characterized in that: the wire digging line of this band polyurea protection coating is coated with wire digging line I b of the band polyurea protection coating of polyurea protection coating II (31b) at the band skin that is wrapped or is coated with wire digging line II b of the band polyurea protection coating of polyurea protection coating II at the band skin that is wrapped.
4. the wire digging line of the band polyurea protection coating according to Claims 2 or 3, is characterized in that: the wire digging line of this band polyurea protection coating is outer at the band (5) that is wrapped or the skin of the band (5) that is wrapped being coated with polyurea protection coating II also has wire digging line I a1, II a1 of the band polyurea protection coating of an individual layer HDPE sleeve pipe formation or wire digging line I b1, II b1 of band polyurea protection coating.
5. a kind of wire digging line with polyurea protection coating according to Claims 2 or 3, is characterized in that: the wire digging line of this band polyurea protection coating is outer at the band (5) that is wrapped or the skin of the band (5) that is wrapped being coated with polyurea protection coating II (31b) also has wire digging line I a2, II a2 of the band polyurea protection coating of the double-deck HDPE sleeve pipe formation be made up of internal layer HDPE sleeve pipe (6) and outer HDPE sleeve pipe (7) or wire digging line I b2, II b2 of band polyurea protection coating.
6. a kind of wire digging line with polyurea protection coating according to claim 4, is characterized in that: the wire digging line of this band polyurea protection coating is also coated with wire digging line I a1c, II a1c of the band polyurea protection coating that one deck polyurea protection coating III (31c) is formed or wire digging line I b1c, II b1c of band polyurea protection coating at individual layer HDPE sleeve pipe (6) skin.
7. a kind of wire digging line with polyurea protection coating according to claim 5, is characterized in that: the wire digging line of this band polyurea protection coating be outer protective polyethylene cover (7) skin of double-deck HDPE sleeve pipe be also coated with wire digging line I a2c, II a2c of the band polyurea protection coating that one deck polyurea protection coating III (31c) is formed or wire digging line I b2c, II b2c of band polyurea protection coating.
8. a kind of steel wire with polyurea protection coating according to claim 1, is characterized in that: the material of described polyurea protection coating is pure polyureas or half polyurea materials.
9. the wire digging line of the band polyurea protection coating according to claim 2,3,6 or 7, is characterized in that: the material of described polyurea protection coating is pure polyureas or half polyurea materials.
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| CN201410200412.XA CN105088941A (en) | 2014-05-13 | 2014-05-13 | Steel wire having polyurea protection coating and steel wire inhaul cables having polyurea protection coatings |
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Application publication date: 20151125 |