CN113981724B - High-strength corrosion-resistant steel wire rope for ocean engineering mooring and manufacturing method thereof - Google Patents
High-strength corrosion-resistant steel wire rope for ocean engineering mooring and manufacturing method thereof Download PDFInfo
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0673—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration
- D07B1/068—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration characterised by the strand design
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- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0673—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration
- D07B1/0686—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration characterised by the core design
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2001—Wires or filaments
- D07B2201/2009—Wires or filaments characterised by the materials used
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- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
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- D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
- D07B2401/202—Environmental resistance
- D07B2401/2025—Environmental resistance avoiding corrosion
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2401/00—Aspects related to the problem to be solved or advantage
- D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
- D07B2401/2055—Improving load capacity
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- D07B—ROPES OR CABLES IN GENERAL
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- D07B2501/2061—Ship moorings
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Abstract
The invention belongs to the technical field of application of steel wire ropes for ocean engineering mooring, and particularly discloses a high-strength corrosion-resistant steel wire rope for ocean engineering mooring, which comprises the following chemical components in percentage by mass: fe and unavoidable impurities. The invention has the beneficial effects that: the design with low cost uses Mn+N to replace Ni and W and Cu to replace Mo to prepare the high tensile strength, excellent fatigue resistance and excellent seawater corrosion resistance saving type duplex stainless steel wire rope for ocean engineering, fills up the domestic blank in the material research field of the steel wire rope for ocean engineering; the control of the strong plasticity in the deformation process of the saving type duplex stainless steel wire solves the technical problems of the production and the preparation of the defect-free saving type duplex stainless steel wire rope; the structure of corrosion resistance and long service life is regulated and controlled, the economical duplex stainless steel is developed towards the high strength direction, and more accurate guidance is provided for further optimizing the structure performance design of the economical duplex stainless steel.
Description
Technical Field
The invention belongs to the technical field of application of steel wire ropes for ocean engineering mooring, and particularly relates to a high-strength corrosion-resistant steel wire rope for ocean engineering mooring and a manufacturing method thereof.
Background
With the shortage of land resources and environmental deterioration, the development and utilization of ocean resources become a focus of attention in countries around the world.
The steel wire rope for mooring is an important component part of a mooring system of a floating structure such as an ocean platform, sea surface machinery, a large ship and the like, and is a key for ensuring the operation requirement, safety and normal operation of the floating structure.
The production and research of foreign steel wire ropes for ocean engineering mooring are mature, and well-known steel wire rope manufacturers such as Bridon, korea Kiswire, redaelli, uhamatin, austria Teufelberger and the like in the United kingdom can produce 6 strands, 8 strands and even 15 strands of steel wire ropes, and the strength level reaches more than 1960 MPa. The main reasons for the above problems include: 1) The research and development of materials are lagged, and the development and application of the high-performance steel wire rope aiming at the marine atmospheric environment are not developed yet; 2) The smelting level is low, the component segregation is serious, and the control level of harmful impurity elements is low; 3) The technical level of the steel wire rope production process is to be broken through. The domestic process design technology has a bottleneck, and under the existing equipment and process conditions, the large-diameter galvanized steel wire rope is quite difficult to reach 1960 MPa; 4) The preparation technology of the steel wire rope with complex structure and thicker diameter is not mastered yet. The high-end steel wire rope is difficult to produce, and the main technical problems are as follows: 1) How to ensure the service life in the environment of high chloride ions; 2) How to realize comprehensive regulation and control of high strength, flexibility and fatigue property; 3) How to ensure the realization of a low-cost and green production process.
Accordingly, in view of the above problems, the present invention provides a high strength corrosion resistant steel wire rope for marine engineering mooring and a method of manufacturing the same.
Disclosure of Invention
The invention aims to: the invention aims to provide a high-strength corrosion-resistant steel wire rope for ocean engineering mooring and a manufacturing method thereof, which are reasonable in structural design, have extremely high strength breaking force (breaking force is more than 1890 KN), and simultaneously have good wear resistance and fatigue resistance, good seawater corrosion resistance and service life of up to 10-30 years.
The technical scheme is as follows: in one aspect, the invention provides a high-strength corrosion-resistant steel wire rope for ocean engineering mooring, the diameter of the high-strength corrosion-resistant steel wire rope is 52mm-55mm, the structure is 6 x 36WS, the breaking force is more than 1890KN, the stress/tensile strength=0.45, the breaking time is more than 200 hours, and the single high-strength corrosion-resistant steel wire rope steel wire consists of the following chemical components in percentage by mass: fe and unavoidable impurities.
According to the technical scheme, the chemical composition of Mn in the Mn+N of 7 percent is 0.5 to 4 percent by mass percent, and the chemical composition of N is 3 to 6 percent by mass percent.
The invention further provides a manufacturing method of the high-strength corrosion-resistant steel wire rope for ocean engineering mooring, which comprises the following steps of step 1, raw material preparation; step 2, induction smelting; step 3, component detection; step 4, checking and grinding the casting blank; step 5, hot rolling; step 6, first quality detection; step 7, solution treatment;
step 8, acid washing; step 9, cold drawing; step 10, detecting the quality for the second time; and 11, twisting and warehousing.
According to the technical scheme, in the step 2, medium-frequency induction smelting is adopted, raw materials are heated and dried, the raw materials are kept dry and pure, the gas content in steel is reduced, and in order to ensure the purity of the duplex stainless steel, the selected raw materials are metals with higher purity, and the intermediate alloy is an ultra-low carbon alloy; and (3) inspecting and grinding the casting blank in the step (4) and the step (5), and hot-rolling the casting blank into a thick steel wire with the diameter of 4-6.5 mm.
In the technical scheme, in the step 7, the step 8 and the step 9, when the total reducing amount reaches 65-75% in the wire drawing process, secondary solid solution treatment is performed: (a) Carrying out first solid solution treatment, hot rolling to prepare a crude steel wire with the diameter of 4-6.5mm, carrying out solid solution treatment at 1100 ℃ for 1h, discharging, carrying out rapid water cooling, mixing 22% nitric acid with 6% hydrofluoric acid, carrying out pickling passivation and drying, reducing the diameter of the first wire drawing according to a factor of 1.08, wherein the diameter is 5.5mm, reducing the diameter of the second wire drawing according to a factor of 1.09, reducing the diameter of the second wire drawing to 5.2mm, reducing the diameter of the third wire drawing according to a factor of 1.06, reducing the diameter of the third wire drawing according to a factor of 4.5mm, and reducing the diameter of the rear wire drawing according to a factor of 1.1 until the diameter of 3.5mm is reached and the total reducing amount is 72.3%; (b) The second solid solution treatment of steel wire with diameter of 3.5mm is carried out, the solid solution treatment is carried out at 1000 ℃ for 0.6h, water cooling is carried out rapidly after discharging, 22% nitric acid and 6% hydrofluoric acid are used for mixing, acid washing passivation and drying are carried out, the diameter of the first wire drawing is reduced according to 1.08 coefficient, the diameter is 3.3mm, the diameter of the second wire drawing is reduced according to 1.09 coefficient, the diameter is 3.0mm, the diameter of the third wire drawing is reduced according to 1.1 coefficient, the diameter is 2.8mm, the diameters of the rear wire drawing are all reduced according to 1.1 coefficient until the diameter is 0.8mm, and the total diameter reduction is 68.9%.
According to the technical scheme, in the step 11, twisting, (a) five outer layer strands are firstly processed, each outer layer strand is of a three-layer structure with the diameter of 1X 36WS, a central layer is of a three-layer structure with the diameter of 1.0-1.2 mm, an inner layer is of seventeen steel wires with the diameter of 2.5-3.5 mm, the diameter of the outer layer is of a three-layer structure with the diameter of 2.5-3.5 mm, a central strand is processed, the central layer is of a three-layer structure with the diameter of 1X 36WS, the diameter of one steel wire is of 1.0-1.2 mm, the diameter of the inner layer is of sixteen steel wires with the diameter of 2.5-3.5 mm, and the diameter of the outer layer is of nineteen steel wires with the diameter of 2.5-3.5 mm; when twisting, the inner layer steel wire lay length of the outer layer strand is gradually reduced, the lay length is 1.5-1.75 mm, the inner layer steel wire lay length of the central strand is gradually reduced, the lay length is 1.8-2.0 mm, the outer layer steel wire lay length of the outer layer strand is gradually reduced, the lay length is 19-20 mm, the outer layer steel wire lay length of the central strand is gradually reduced, the lay length is 18-20 mm, after twisting is finished, the pressing amount is increased by a deformer, and part of prestress in the strand is eliminated, wherein a deformer after horizontal and vertical is adopted; (b) And (3) rope folding, wherein 1 central strand and 5 outer layer steel wire strands are combined according to a structure of 6X 36WS, a pre-deformer is not used after rope folding, the prestress of the steel wire rope is naturally increased, and then a two-flat-one vertical post-deformer is used, so that the verticality of the steel wire rope is increased.
Compared with the prior art, the high-strength corrosion-resistant steel wire rope for ocean engineering mooring and the manufacturing method thereof have the beneficial effects that: (1) The reasonable design with low cost uses Mn+N to replace Ni, uses W, cu and other to replace Mo, and properly adopts the component design of low melting point element microalloyed saving type duplex stainless steel to prepare the saving type duplex stainless steel wire rope with high tensile strength, excellent fatigue resistance and excellent seawater corrosion resistance for ocean engineering application, thus filling the domestic blank in the material research field of the steel wire rope for ocean engineering; (2) The strong plasticity control in the deformation process of the saving type duplex stainless steel wire aims at optimizing the high-temperature deformation behavior of austenite and ferrite and balancing the deformation coordination of the austenite and the ferrite, and on the basis, the softening behavior, the two-phase proportion and the coordination deformation mechanism of the ferrite/austenite in the thermal deformation process are clarified, the influence mechanism of tissue evolution on thermoplasticity is clarified, the evolution rule of the ferrite and the austenite phase in the normal-temperature drawing deformation process of the duplex stainless steel wire and the influence mechanism on plastic deformation are explored, and the technical problems of the production and the preparation of the defect-free saving type duplex stainless steel wire rope are solved; (3) The corrosion-resistant and long-life structure regulation and control economic duplex stainless steel is developed towards the high strength direction, so that the development of the economic duplex stainless steel with the TRIP effect at home and abroad is a main development trend, after the steel is subjected to cold plastic working deformation, the steel is deformed to induce gamma-alpha' phase change, the influence effects on corrosion resistance, fatigue and the like are not yet subjected to comprehensive evaluation of a system, and aiming at the problem, a research thought for comprehensively evaluating the corrosion resistance and dynamic fatigue characteristics of the economic duplex stainless steel under a complex environment after the cold plastic working deformation is provided, and more accurate guidance is provided for further optimizing the structural performance design of the economic duplex stainless steel.
Drawings
FIG. 1 is a schematic diagram of a method of research on a high strength corrosion resistant steel wire rope for marine mooring.
Detailed Description
The invention will be further elucidated with reference to the drawings and to specific embodiments.
The high-strength corrosion-resistant steel wire rope for ocean engineering mooring provided by the invention has the diameter of 52mm-55mm, the structure of 6 x 36WS, the breaking force of more than 1890KN, the stress/tensile strength=0.45 and the breaking time of more than 200 hours, and is composed of the following chemical components in percentage by mass: fe and unavoidable impurities.
The high-strength corrosion-resistant steel wire rope for ocean engineering mooring is preferable, wherein the chemical composition of Mn in 7% of Mn+N is 0.5% -4% by mass, and the chemical composition of N is 3% -6% by mass.
The manufacturing method of the high-strength corrosion-resistant steel wire rope for ocean engineering mooring comprises the following steps of step 1, raw material preparation; step 2, induction smelting; step 3, component detection; step 4, checking and grinding the casting blank; step 5, hot rolling; step 6, first quality detection; step 7, solution treatment; step 8, acid washing; step 9, cold drawing; step 10, detecting the quality for the second time; and 11, twisting and warehousing.
The manufacturing method of the high-strength corrosion-resistant steel wire rope for ocean engineering mooring is preferable, in the step 2, medium-frequency induction smelting is adopted, raw materials are heated and dried, the raw materials are kept dry and pure, the gas content in steel is reduced, in order to ensure the purity of duplex stainless steel, the selected raw materials are metals with higher purity, and the intermediate alloy is ultra-low carbon alloy; and (3) inspecting and grinding the casting blank in the step (4) and the step (5), and hot-rolling the casting blank into a thick steel wire with the diameter of 4-6.5 mm.
The manufacturing method of the high-strength corrosion-resistant steel wire rope for ocean engineering mooring is preferable, wherein in the step 7, the step 8 and the step 9, when the total reducing amount reaches 65-75% in the wire drawing process, secondary solution treatment is carried out: (a) Carrying out first solid solution treatment, hot rolling to prepare a crude steel wire with the diameter of 4-6.5mm, carrying out solid solution treatment at 1100 ℃ for 1h, discharging, carrying out rapid water cooling, mixing 22% nitric acid with 6% hydrofluoric acid, carrying out pickling passivation and drying, reducing the diameter of the first wire drawing according to a factor of 1.08, wherein the diameter is 5.5mm, reducing the diameter of the second wire drawing according to a factor of 1.09, reducing the diameter of the second wire drawing to 5.2mm, reducing the diameter of the third wire drawing according to a factor of 1.06, reducing the diameter of the third wire drawing according to a factor of 4.5mm, and reducing the diameter of the rear wire drawing according to a factor of 1.1 until the diameter of 3.5mm is reached and the total reducing amount is 72.3%; (b) The second solid solution treatment of steel wire with diameter of 3.5mm is carried out, the solid solution treatment is carried out at 1000 ℃ for 0.6h, water cooling is carried out rapidly after discharging, 22% nitric acid and 6% hydrofluoric acid are used for mixing, acid washing passivation and drying are carried out, the diameter of the first wire drawing is reduced according to 1.08 coefficient, the diameter is 3.3mm, the diameter of the second wire drawing is reduced according to 1.09 coefficient, the diameter is 3.0mm, the diameter of the third wire drawing is reduced according to 1.1 coefficient, the diameter is 2.8mm, the diameters of the rear wire drawing are all reduced according to 1.1 coefficient until the diameter is 0.8mm, and the total diameter reduction is 68.9%.
The method for manufacturing the high-strength corrosion-resistant steel wire rope for ocean engineering mooring is preferable, wherein in the step 11, twisting is carried out, (a) five outer layer strands are firstly processed, each outer layer steel wire strand is of a three-layer structure of 1X 36WS, the diameter of a central layer is 1.0-1.2 mm, the diameter of an inner layer is seventeen steel wires and is 2.5-3.5 mm, the diameter of the outer layer is seventeen steel wires and is 2.5-3.5 mm, a central strand is processed again, the central strand is of a three-layer structure of 1X 36WS, the diameter of the central layer is 1.0-1.2 mm, the diameter of an inner layer is sixteen steel wires and is 2.5-3.5 mm, and the diameter of an outer layer is nineteen steel wires and is 2.5-3.5 mm; when twisting, the inner layer steel wire lay length of the outer layer strand is gradually reduced, the lay length is 1.5-1.75 mm, the inner layer steel wire lay length of the central strand is gradually reduced, the lay length is 1.8-2.0 mm, the outer layer steel wire lay length of the outer layer strand is gradually reduced, the lay length is 19-20 mm, the outer layer steel wire lay length of the central strand is gradually reduced, the lay length is 18-20 mm, after twisting is finished, the pressing amount is increased by a deformer, and part of prestress in the strand is eliminated, wherein a deformer after horizontal and vertical is adopted; (b) And (3) rope folding, wherein 1 central strand and 5 outer layer steel wire strands are combined according to a structure of 6X 36WS, a pre-deformer is not used after rope folding, the prestress of the steel wire rope is naturally increased, and then a two-flat-one vertical post-deformer is used, so that the verticality of the steel wire rope is increased.
The research method of the high-strength corrosion-resistant steel wire rope for ocean engineering mooring of the invention comprises the following aspects as shown in figure 1,
(1) The method is characterized by comprising the steps of taking alloy components of duplex stainless steel 2205 and LDX2101 as a base, taking Mn+N as a substitute for Ni, taking W, cu and other substitutes for Mo and properly adding low-melting-point elements as an alloying thought, fully considering the influence of Mn and N elements on strength and corrosion performance, adopting thermoCalc or other thermodynamic calculation software and an iron-based alloy database, calculating and analyzing the influence rules of the types and contents of the alloy elements on the change of the phase ratio and the fault energy of the steel, and determining the basic direction of alloying design. And (3) alloy smelting is carried out by adopting a laboratory vacuum furnace, and a mode of adding and controlling N is researched and realized. Meanwhile, the content of the inclusion elements such as O, P, S meets the requirements of experimental steel. Then, the control of solidification structure is realized by changing the alloy components and solidification process conditions such as casting temperature, cooling strength and the like, and the influence mechanism of the alloy components and solidification conditions on solidification behavior is determined.
(2) Simulating thermal deformation behavior, deformation coordination and microstructure evolution by adopting a thermal simulation tester, determining true stress-true strain curve under different deformation temperature, strain rate and deformation degree conditions and performing tissue characterization to establish a rheological stress constitutive relation, analyzing a deformation induction phase transformation mechanism of ferrite/austenite in the saving type duplex stainless steel, a recrystallization softening behavior, an orientation relation, grain boundary distribution characteristics and other tissue evolution rules and two-phase thermal stress generation rules, and determining microscopic mechanisms of crack initiation and propagation in the thermal deformation process by combining stress state analysis; (b) The influence mechanism of alloy elements on the high-temperature hardness and the deformation coordination of ferrite and austenite two phases is studied through thermal deformation simulation experiments, microstructure characterization and macroscopic morphology observation of experimental steels with different alloy components, and the thermoplastic change rule and mechanism are defined. And combining thermal deformation experimental data, developing a thermodynamic model for accurately predicting a thermal processing safety zone.
(3) Pilot experiments of conventional production processing preparation processes, (a) in the implementation process of the project, each main link required to be experienced in the production process is simulated through a whole set of process routes and equipment of smelting, rolling, solution treatment and cold drawing. The stainless steel wire is prepared by controlling a rolling process and a cold drawing deformation process, and the tissue evolution rule of the saving type duplex stainless steel in each deformation process is analyzed. The control mode of hot rolling cracks is researched by controlling process parameters such as the initial rolling temperature, the pass reduction, the final rolling temperature and the like in the hot continuous rolling process, and the generation reasons and the control method of cracks and broken wires are clearly shown by controlling the drawing pass and the pass deformation, so that the stainless steel wire with a bright and clean surface and no defects in the interior is obtained; (b) By designing the steel wire rope structure, the combination form of the rope strand structure is designed to use differential geometry to establish a steel wire twisting spiral model, and parameters such as strand diameter, twisting angle, twisting distance, spiral radius and the like are researched and determined.
(4) And (3) carrying out microstructure characterization on the materials, analyzing the microstructure change rules (mainly comprising two-phase proportion, orientation relation, component distribution, thermal stress, morphological characteristics, grain size, grain boundary characteristic distribution and the like) and the change rules of the types, shapes, quantity, distribution and the like of the second phases at each stage in the preparation process of the conservation-oriented dual-phase stainless steel wire under different control process conditions by adopting an optical microscope, an FE-SEM (provided with an EBSD accessory), an FE-EPMA, a nano indentation hardness tester, an FE-TEM and the like, researching the influence rules of the second phase distribution characteristics in the steel on the plasticity/toughness of the steel, establishing a corresponding relation of the component-process-structure-performance, and definitely determining the toughening mechanism of the preparation of the conservation-oriented dual-phase stainless steel wire.
(5) The method comprises the steps of (a) adopting a tensile testing machine to respectively detect important parameters such as yield strength, tensile strength, elongation and the like of an experimental steel wire; (b) Adopting a low-cycle fatigue testing machine to test the fatigue performance of stainless steel wires with different alloy components and the corrosion fatigue strength under the environment containing chloride ions, revealing the fatigue fracture and corrosion fatigue mechanism, and evaluating the service life of the steel wires under the marine environment condition; (c) Corrosion test equipment such as a constant temperature and humidity box, electrochemical equipment and a periodic infiltration corrosion test box are adopted, the change rule of the phase variable of metastable austenite on the corrosion resistance of the steel under the conditions of different tensile deformation degrees, strain rates and the like is researched by using weight loss and electrochemical test methods (such as dynamic polarization test, alternating current impedance and the like), and the influence mechanism of the microstructure change in the steel on the corrosion resistance is clarified.
The foregoing is merely a preferred embodiment of the invention, and it should be noted that modifications could be made by those skilled in the art without departing from the principles of the invention, which modifications would also be considered to be within the scope of the invention.
Claims (1)
1. The high-strength corrosion-resistant steel wire rope for ocean engineering mooring is characterized in that: the high-strength corrosion-resistant steel wire rope has a diameter of 52mm-55mm and a structure of 6 x 36WS, a breaking force of more than 1890KN, a stress/tensile strength=0.45 and a breaking time of more than 200 hours, and is composed of the following chemical components in percentage by mass: fe and unavoidable impurities;
the Mn+N is characterized in that the chemical composition of Mn in 7 percent is 0.5 to 4 percent by mass percent, and the chemical composition of N is 3 to 6 percent by mass percent;
the manufacturing method of the high-strength corrosion-resistant steel wire rope for ocean engineering mooring comprises the following steps of 1, preparing raw materials; step 2, induction smelting; step 3, component detection; step 4, checking and grinding the casting blank; step 5, hot rolling; step 6, first quality detection; step 7, solution treatment; step 8, acid washing; step 9, cold drawing; step 10, detecting the quality for the second time; step 11, twisting and warehousing;
in the step 2, intermediate frequency induction smelting is adopted, raw materials are heated and dried, the raw materials are kept dry and pure, the gas content in steel is reduced, and in order to ensure the purity of the duplex stainless steel, the selected raw materials are metals with higher purity, and the intermediate alloy is an ultra-low carbon alloy; the casting blank in the step 4 and the step 5 is inspected, polished and hot rolled into a rough steel wire with the diameter of 4-6.5 mm;
in the step 7, the step 8 and the step 9, when the total reducing amount reaches 65-75% in the wire drawing process, secondary solution treatment is carried out: (a) Carrying out first solid solution treatment, hot rolling to prepare a crude steel wire with the diameter of 4-6.5mm, carrying out solid solution treatment at 1100 ℃ for 1h, discharging, carrying out rapid water cooling, mixing 22% nitric acid with 6% hydrofluoric acid, carrying out pickling passivation and drying, reducing the diameter of the first wire drawing according to a factor of 1.08, wherein the diameter is 5.5mm, reducing the diameter of the second wire drawing according to a factor of 1.09, reducing the diameter of the second wire drawing to 5.2mm, reducing the diameter of the third wire drawing according to a factor of 1.06, reducing the diameter of the third wire drawing according to a factor of 4.5mm, and reducing the diameter of the rear wire drawing according to a factor of 1.1 until the diameter of 3.5mm is reached and the total reducing amount is 72.3%; (b) Carrying out solution treatment on a steel wire with the diameter of 3.5mm at the temperature of 1000 ℃ for 0.6h, discharging, carrying out rapid water cooling, mixing 22% nitric acid with 6% hydrofluoric acid, carrying out pickling passivation, and drying, wherein the diameter of the first wire drawing is reduced by 1.08 coefficient, the diameter is 3.3mm, the diameter of the second wire drawing is reduced by 1.09 coefficient, the diameter is 3.0mm, the diameter of the third wire drawing is reduced by 1.1 coefficient, the diameter is 2.8mm, the diameters of the rear wire drawing are all reduced by 1.1 coefficient, the diameter is 0.8mm, and the total diameter reduction is 68.9%;
the twisting in the step 11, (a) five outer layer strands are firstly processed, each outer layer strand is of a three-layer structure of 1X 36WS, the diameter of a central layer is 1.0-1.2 mm, the diameter of an inner layer is 2.5-3.5 mm, the diameter of an outer layer is 2.5-3.5 mm, a central strand is processed again, the diameter of the central layer is 1X 36WS, the diameter of the central layer is 1.0-1.2 mm, the diameter of an inner layer is sixteen steel wires is 2.5-3.5 mm, and the diameter of an outer layer is 2.5-3.5 mm; when twisting, the inner layer steel wire lay length of the outer layer strand is gradually reduced, the lay length is 1.5-1.75 mm, the inner layer steel wire lay length of the central strand is gradually reduced, the lay length is 1.8-2.0 mm, the outer layer steel wire lay length of the outer layer strand is gradually reduced, the lay length is 19-20 mm, the outer layer steel wire lay length of the central strand is gradually reduced, the lay length is 18-20 mm, after twisting is finished, the pressing amount is increased by a deformer, and part of prestress in the strand is eliminated, wherein a deformer after horizontal and vertical is adopted; (b) And (3) rope folding, wherein 1 central strand and 5 outer layer steel wire strands are combined according to a structure of 6X 36WS, a pre-deformer is not used after rope folding, the prestress of the steel wire rope is naturally increased, and then a two-flat-one vertical post-deformer is used, so that the verticality of the steel wire rope is increased.
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| GB210508A (en) * | 1922-10-30 | 1924-01-30 | Colin Garfield Fink | Improved composite metal articles or materials |
| JP2906018B2 (en) * | 1994-04-04 | 1999-06-14 | 東京製綱株式会社 | Steel cord for rubber reinforcement and method for producing the same |
| SE528782C2 (en) * | 2004-11-04 | 2007-02-13 | Sandvik Intellectual Property | Duplex stainless steel with high yield strength, articles and use of the steel |
| CN101775551A (en) * | 2010-03-09 | 2010-07-14 | 江苏亚盛金属制品有限公司 | Manufacture method of novel marine corrosion resistance stainless steel and steel cable thereof |
| CN103074552A (en) * | 2013-01-14 | 2013-05-01 | 浙江大学 | Economical type high-performance duplex stainless steel and preparation method thereof |
| CN104594082B (en) * | 2015-01-12 | 2016-10-12 | 江苏亚盛金属制品有限公司 | A kind of production method of amortisseur steel wire rope |
| CN105624580B (en) * | 2016-03-07 | 2017-11-03 | 江苏科技大学 | A kind of dual-phase stainless steel wire and preparation method thereof |
| CN106995903A (en) * | 2017-03-31 | 2017-08-01 | 江苏星火特钢有限公司 | A kind of ocean engineering anticorrosion stress-resistant dual phase steel stainless steel wire rope and preparation method |
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2021
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