CN110828033A - Scrape-abrasion-resistant seawater corrosion-resistant degaussing cable and processing technology thereof - Google Patents

Scrape-abrasion-resistant seawater corrosion-resistant degaussing cable and processing technology thereof Download PDF

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CN110828033A
CN110828033A CN201911086441.7A CN201911086441A CN110828033A CN 110828033 A CN110828033 A CN 110828033A CN 201911086441 A CN201911086441 A CN 201911086441A CN 110828033 A CN110828033 A CN 110828033A
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cable
sheath
copper conductor
parts
insulating layer
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陆震
解向前
吴飞
徐鹏飞
张�杰
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704th Research Institute of CSIC
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Abstract

The invention relates to a scrape-abrasion-resistant seawater corrosion-resistant degaussing cable and a processing technology thereof, wherein the degaussing cable comprises a copper conductor, an insulating layer and a sheath, wherein the insulating layer and the sheath are sequentially arranged on the periphery of the copper conductor to form an over-water type cable; and an insulating layer, a sheath and a protective layer are sequentially arranged on the periphery of the copper conductor to form the underwater cable. The processing technology comprises the processing technology of a copper conductor, an insulating layer, a sheath and a protective sleeve. The degaussing cable is an environment-friendly product, and has no influence on the environment in the production process and after being scrapped. Meanwhile, the product ensures the stability of a power system with excellent performance, effectively reduces electromagnetic radiation and protects human health; the product adopts the international advanced sulfur-connecting process technology, the flexibility of the cable is ensured, the selection of a layer-by-layer reinforcement mode and the realization of a production process are protected, the strength of a cable sheath is improved on a physical structure, the cable sheath is ensured not to deform and crack in the long-term and high-frequency scraping and grinding process, and the cable signal transmission has the advantages of higher safety, reliability, long service life and the like.

Description

Scrape-abrasion-resistant seawater corrosion-resistant degaussing cable and processing technology thereof
Technical Field
The invention relates to a cable, in particular to a degaussing cable and a processing technology thereof.
Background
The HM is an important device of the attack and defense strategy of marine national defense, and is a national defense device which is very important for all countries in the world. To meet the HM degaussing requirement, the degaussing Z must be built. A scratch-resistant and seawater corrosion-resistant degaussing cable is an important matched facility for HM degaussing Z, has extremely high technical requirements and performance characteristics, belongs to the category of high-end special cables, and has the technical difficulties of complex system design, severe and variable use environment, high product manufacturing equipment and process requirements and the like. The development of the degaussing cable is to meet the requirements of HJ degaussing Z construction and degaussing ZJC magnetic treatment, the degaussing cable can be laid or wound temporarily in use, has degaussing working current and compensating current which bear the requirements, and has the capability of long-term stable, reliable and safe work. The scratch-resistant and seawater corrosion-resistant degaussing cable suitable for the matched use of the novel degaussing Z has the following characteristics: the cable is resistant to severe laying and using environments (seawater, oil stain, salt mist, moisture and mould), suitable for repeated disassembly and assembly, suitable for long-length laying, excellent in flexibility and capable of withstanding high current impact. The degaussing special cable connector matched with the novel degaussing Z for use must be capable of withstanding high current impact and high voltage and is suitable for soaking water.
Disclosure of Invention
The invention provides a scratch-resistant, wear-resistant and seawater corrosion-resistant degaussing cable and a processing technology which are suitable for being matched with a novel degaussing Z, wherein the degaussing cable can bear indoor and outdoor environments such as high and low temperature frequent change, long-term erosion of seawater salt mist, self lubricating oil of equipment and the like; the cable has excellent wear resistance, winding resistance and moving fatigue resistance, ensures the service life, can improve the integral service environment resistance of the cable and the aging resistance service life of the cable, and has the service life of 30 years.
In order to achieve the purpose, the technical scheme of the invention is as follows: a scratch-abrasion-resistant seawater corrosion-resistant degaussing cable comprises a copper conductor, an insulating layer and a sheath, wherein the insulating layer and the sheath are sequentially arranged on the periphery of the copper conductor to form an underwater cable; and an insulating layer, a sheath and a protective layer are sequentially arranged on the periphery of the copper conductor to form the underwater cable.
Furthermore, the copper conductor is an oxygen-free copper rod, the copper content is 99.99%, and the electric conductivity is 101% IACS.
Furthermore, the copper conductor adopts the equidirectional bunching, strand wire bunching and complex stranding structure, the finished product conductor of the stranded copper conductor is compact, smooth in surface and flexible, and no gap exists between strands bunched in different directions.
Further, the insulating layer is made of high-performance ethylene-propylene mixed rubber.
Further, the sheath is made of chlorosulfonated polyethylene rubber
Furthermore, the protective layer is made of polyurethane elastomer with excellent comprehensive performance.
The utility model provides a processing technology of resistant sea water corrosion degaussing cable of scraping and grinding, includes the processing of adding of copper conductor, insulating layer, sheath, protective sheath, wherein:
manufacturing the copper conductor: firstly, adopting a multi-head wire drawing machine, forming an oxygen-free copper rod into a bare copper monofilament by a polycrystalline die with the wire diameter tolerance of +/-0.002 mm through medium-drawing and small-drawing, selecting the cloud tin with the purity of 99.99 percent, and controlling the annealing temperature to be 575 +/-10 ℃ through tubular annealing equipment; the tin furnace temperature is controlled at 260 +/-3 ℃ for annealing heat treatment, so that the copper conductor achieves the best toughness, strength and flexibility to adapt to repeated bending of the cable during laying and use; then, carrying out compound twisting on the treated bare copper monofilament, wherein the compound twisting adopts a 1+6+12 normal twisting mode, so that the structural stability of the cable is improved, and the influence of easy deformation of conductors twisted in the same direction is reduced;
manufacturing the insulating layer: TER4044 high-performance ethylene-propylene mixed rubber of Italy Eyni company is used as matrix rubber, low-temperature additives, reinforcing agents and vulcanizing agents are added according to a certain proportion, and excellent comprehensive performance, namely good elasticity, toughness and mobility, is achieved after compounding.
Manufacturing the sheath: first, the material of the sheath is prepared: 100 parts of chlorosulfonated polyethylene rubber, 20-30 parts of active kaolin, 25-40 parts of talcum powder, 5-15 parts of white carbon black, 5-10 parts of carbon black N3305, 1-3 parts of dioctyl phthalate, 2-4 parts of trioctyl trimellitate, 5-9 parts of antimony trioxide, 1-3 parts of an anti-aging agent, 10-20 parts of lead oxide, 2-4 parts of a co-vulcanizing agent and 0-5 parts of the other components; then, mixing rubber, mixing by a German Brabender internal mixer at the rotation speed of 30r/min and the mixing temperature of 30-90 ℃, finally, measuring the vulcanization characteristic of the rubber material by a high-iron vulcanizer at the measurement temperature of 180 ℃ for 15min, and then vulcanizing on a flat-plate vulcanizer under the condition that the positive vulcanization time is 180 ℃ multiplied by T90. And standing the vulcanized sample for 8 hours, and then carrying out cut piece and performance measurement.
Manufacturing the protective layer: the production of the polyurethane elastomer protective layer adopts a 90-type extruding machine, the extrusion outer diameter is phi 22.0-phi 60mm, the maximum production speed is 70m/min, the length-diameter ratio of a screw is 20-30, the compression ratio is 2-4, a common single-screw extruder is adopted for extrusion, a water spraying device of an extruder head is adopted, a wire core is immediately sprayed with water and cooled after being extruded from a die opening, so that the surface of the sheath is smooth and round, and the polyurethane elastomer material is easy to absorb moisture due to the characteristic of the polyurethane elastomer material, and is dried for 1-2 h at 85 ℃ before production, so that no air hole is formed in the section of the produced protective layer.
Further, in order to prevent in the insulating layer manufacturing process that the track from flattening the conductor, carry out a certain degree sticis to the conductor when every layer of bundle twists, guarantee that copper conductor structure is inseparable, non-deformable, simultaneously, the copper conductor external diameter after sticising can reduce 0.05mm, the effectual external diameter that reduces the finished cable, and the weight that alleviates the cable.
The invention has the beneficial effects that:
① the scratch-resistant, wear-resistant, seawater corrosion-resistant and degaussing cable product of the invention uses mostly new materials developed by high-quality and high-level manufacturers in China, and plays a good role in pulling the development of the domestic market and driving the upper and lower industry chains.
② the product of the invention is an environment-friendly product, which has no influence on the environment during the production process and after being discarded, and simultaneously, the product ensures the stability of the power system with excellent performance, effectively reduces the electromagnetic radiation, protects the human health, ensures the flexibility of the cable by adopting the international advanced sulfur-connecting process technology, protects the selection of the layer-by-layer reinforcement mode and the realization of the production process, improves the strength of the cable sheath on the physical structure, ensures that the cable sheath does not deform and crack in the long-term and high-frequency scraping and grinding process, and ensures that the cable signal transmission has the advantages of safety, reliability, long service life and the like.
③ break the technical monopoly of relying entry for degaussing cables by the present invention.
Drawings
FIG. 1 is a cross-sectional view of a degaussing EHR (water borne) cable;
FIG. 2 is a cross-sectional view of a degaussing EHUR (underwater type) cable;
FIG. 3 is a flow chart of a rubber mixing process;
fig. 4 is a flow chart of a manufacturing process of the degaussing EHR (water-on-water) cable and the degaussing EHUR (water-under-water) cable.
Detailed Description
The invention is further described with reference to the following figures and examples.
The scratch-resistant, abrasion-resistant and seawater corrosion-resistant degaussing cable provided by the invention comprises the following components in parts by weight: demagnetizing EHR (water-borne type) and demagnetizing EHUR (water-borne type).
As shown in fig. 1, the degaussing EHR (underwater) cable is composed of a copper conductor 1, an insulating layer 2, and a sheath 3, and the insulating layer 2 and the sheath 3 are provided on the outer periphery of the copper conductor 1 in this order.
As shown in fig. 2, the degaussing EHUR (underwater) cable is composed of a copper conductor 1, an insulating layer 2, a sheath 3, and a protective layer 4, wherein the insulating layer 2, the sheath 3, and the protective layer 4 are provided in this order on the outer periphery of the copper conductor 1.
The manufacturing process of the demagnetizing EHR (underwater type) cable and the demagnetizing EHUR (underwater type) cable is shown in figure 4. Wherein:
(1) copper conductor
Selecting a high-quality oxygen-free copper rod, wherein the copper content reaches 99.99%, the electric conductivity can reach 101% IACS, adopting an imported multi-head wire drawing machine and a polycrystalline die (the wire diameter tolerance is +/-0.002 mm), and forming a bare copper monofilament through medium drawing and small drawing, thereby improving the production efficiency; selecting the cloud tin with the purity of 99.99 percent, and controlling the annealing temperature to be 575 +/-10 ℃ by using tubular annealing equipment; the tin furnace temperature is controlled at 260 +/-3 ℃ for annealing heat treatment, so that the conductor achieves the optimal toughness, strength and flexibility to adapt to repeated bending of the cable during laying and using.
The conductor adopts the same-direction strand twisting, and the strand wire-bundle twisting and the compound twisting all adopt the left direction (S twisting). The stranded finished conductor is compact, smooth in surface and very good in flexibility. And no gap is formed between the strands after the heterosked.
The compound twisting adopts a 1+6+12 normal twisting mode, so that the structural stability of the cable is improved, and the influence of easy deformation of the conductors twisted in the same direction is reduced. In order to prevent the conductor from being flattened by the crawler belt in the insulation production process, the conductor is compacted to a certain degree when each layer of the conductor is stranded, and the conductor is ensured to be compact in structure and not easy to deform. Meanwhile, the outer diameter of the compressed conductor can be reduced by 0.05mm, so that the outer diameter of the finished cable is effectively reduced, and the weight of the cable is reduced.
(2) Insulating layer
The insulating material is high-performance ethylene-propylene mixed rubber which is independently researched and developed.
① the tensile strength and the elongation at break of the ethylene-propylene insulating glue exceed the standard requirement value, and the stability is excellent in the actual production process, which is related to the selection of the glue and the glue content of the formula, selecting TER4044 from Italy Enani company as the base glue, because the content of the ethylene of TER4044 is about 61%, the ethylene content is moderate, ensuring that the hardness, the tensile strength, the modulus, the tearing strength and the rebound value of the mixed glue can reach a certain height, the content is below 70%, and ensuring that the compression permanent deformation is not too large, which accords with the design requirement of our us, meanwhile, the content of the third monomer of TER4044 is 4, the vulcanization efficiency is high, ensuring that the strength and the elongation at break of the vulcanized mixed glue are both higher, and the permanent deformation is low, in addition, the viscosity value of TER4044 is about 44, the viscosity value is not large, the glue is relatively soft, the requirements on the processing equipment and the extrusion equipment are not high, and the Mooney mechanical properties of the TER4044 vulcanized glue can ensure that the cable core is relatively soft.
② the insulation performance of ethylene-propylene insulating glue is volume resistivity, the volume resistivity of the mixed glue is higher than the standard value by an order of magnitude, which is greatly related to the use of fillers, in the selection of the big materials, including white carbon black, talcum powder, pottery clay and the like, the big materials are all made of domestic and foreign high-quality materials, the insulation performance, namely the volume resistivity, is improved on the premise of ensuring excellent mechanical performance and strength, especially the selection of the pottery clay, the pottery clay selected is the high-quality pottery clay which is calcined at high temperature and treated by a silane coupling agent, the insulation performance of the ethylene-propylene glue is greatly improved, and the use amount of the pottery clay accounts for more than 80% of the use amount of the whole big materials, and the ethylene-propylene insulating glue is used as the fillers and also has the purpose of improving the volume resistivity.
③ the ethylene-propylene insulating mixed glue adopts the existing imported ethylene-propylene raw glue (Italy Eini 4044) with excellent processing performance and insulating performance, low temperature additive, reinforcing agent, vulcanizing agent and other different additives according to a certain proportion to reasonably compound to achieve excellent comprehensive performance.
(3) Protective sleeve
The sheath material is chlorosulfonated polyethylene rubber which is independently researched and developed.
① degaussing cable sheath rubber comprises 100 parts of chlorosulfonated polyethylene rubber, 20-30 parts of active kaolin, 25-40 parts of talcum powder, 5-15 parts of white carbon black, 5-10 parts of carbon black N3305, 1-3 parts of dioctyl phthalate, 2-4 parts of trioctyl trimellitate, 5-9 parts of antimony trioxide, 1-3 parts of anti-aging agent, 10-20 parts of lead oxide, 2-4 parts of auxiliary vulcanizing agent and 0-5 parts of the rest.
② the rubber is mixed by a German Brabender internal mixer, the rotating speed is 30r/min, the mixing temperature is 30-90 ℃, and the mixing steps are shown in figure 3.
③ measuring the vulcanization characteristic of the rubber material with a high-iron vulcanizer at 180 deg.C for 15min, and vulcanizing with a flat vulcanizer at 180 deg.C x T90(Positive vulcanization time). And standing the vulcanized sample for 8 hours, and then carrying out cut piece and performance measurement.
(4) Protective layer
The protective layer material is polyurethane elastomer with excellent comprehensive performance.
The production of the polyurethane elastomer protective layer adopts a 90-type plastic extruding machine, the extruded outer diameter is 22.0-60 mm, the maximum production speed is 70m/min, and the polyurethane elastomer protective layer is extruded by a common single-screw extruder with the length-diameter ratio of a screw being 20-30 and the compression ratio being 2-4. Because the mobility of polyurethane elastomer (TPU) material is better, the control of production operation to the eccentricity is difficult, adopts extruder head trickle device, lets the sinle silk drench the water cooling immediately after extruding from the mould mouth to ensure that the sheath surface is smooth round, because the characteristic of polyurethane elastomer (TPU) material is easy to absorb moisture, need 85 ℃ stoving 1 ~ 2h before production, ensures that the sheath tangent plane that produces has no air hole. The material has outdoor climate change resistance: ultraviolet irradiation, wind and rain, seawater salt spray, lubricating oil for equipment and the like; and has certain flame retardant performance which can pass a single vertical combustion test. The sheath material is not damaged by friction, and the wear resistance is improved by more than 10 times compared with a rubber-sheathed flexible cable.

Claims (8)

1. The utility model provides a resistant sea water corrosion degaussing cable of scraping and grinding, includes copper conductor, insulating layer, sheath, its characterized in that: an insulating layer and a sheath are sequentially arranged on the periphery of the copper conductor to form the water-borne cable; and an insulating layer, a sheath and a protective layer are sequentially arranged on the periphery of the copper conductor to form the underwater cable.
2. The scrape abrasion resistant seawater corrosion resistant degaussing cable of claim 1, wherein: the copper conductor is an oxygen-free copper rod, the copper content is 99.99%, and the electric conductivity is 101% IACS.
3. The scrape abrasion resistant seawater corrosion resistant degaussing cable of claim 1, wherein: the copper conductor adopts the equidirectional bunching, strand wire bunching and complex stranding structure, the finished product conductor of the stranded copper conductor is compact, smooth in surface and flexible, and no gap exists between strands after the anisotropic bunching.
4. The scrape abrasion resistant seawater corrosion resistant degaussing cable of claim 1, wherein: the insulating layer is made of high-performance ethylene-propylene mixed rubber.
5. The scrape abrasion resistant seawater corrosion resistant degaussing cable of claim 1, wherein: the sheath is made of chlorosulfonated polyethylene rubber
6. The scrape abrasion resistant seawater corrosion resistant degaussing cable of claim 1, wherein: the protective layer is made of polyurethane elastomer.
7. The process for processing the degaussing cable with the functions of scraping, grinding, seawater corrosion resistance and the like according to claim 1, which comprises the processes for processing a copper conductor, an insulating layer, a sheath and a protective sleeve, and is characterized in that:
manufacturing the copper conductor: firstly, adopting a multi-head wire drawing machine, forming an oxygen-free copper rod into a bare copper monofilament by a polycrystalline die with the wire diameter tolerance of +/-0.002 mm through medium-drawing and small-drawing, selecting the cloud tin with the purity of 99.99 percent, and controlling the annealing temperature to be 575 +/-10 ℃ through tubular annealing equipment; the tin furnace temperature is controlled at 260 +/-3 ℃ for annealing heat treatment, so that the copper conductor achieves the best toughness, strength and flexibility to adapt to repeated bending of the cable during laying and use; then, carrying out compound twisting on the treated bare copper monofilament, wherein the compound twisting adopts a 1+6+12 normal twisting mode, so that the structural stability of the cable is improved, and the influence of easy deformation of conductors twisted in the same direction is reduced;
manufacturing the insulating layer: TER4044 high-performance ethylene-propylene mixed rubber of Italy Eyni company is used as matrix rubber, low-temperature additives, reinforcing agents and vulcanizing agents are added according to a certain proportion, and excellent comprehensive performance, namely good elasticity, toughness and mobility, is achieved after compounding.
Manufacturing the sheath: first, the material of the sheath is prepared: 100 parts of chlorosulfonated polyethylene rubber, 20-30 parts of active kaolin, 25-40 parts of talcum powder, 5-15 parts of white carbon black, 5-10 parts of carbon black N3305, 1-3 parts of dioctyl phthalate, 2-4 parts of trioctyl trimellitate, 5-9 parts of antimony trioxide, 1-3 parts of an anti-aging agent, 10-20 parts of lead oxide, 2-4 parts of a co-vulcanizing agent and 0-5 parts of the other components; then, mixing rubber, mixing by a German Brabender internal mixer at the rotation speed of 30r/min and the mixing temperature of 30-90 ℃, finally, measuring the vulcanization characteristic of the rubber material by a high-iron vulcanizer at the measurement temperature of 180 ℃ for 15min, and then vulcanizing on a flat-plate vulcanizer under the condition that the positive vulcanization time is 180 ℃ multiplied by T90. And standing the vulcanized sample for 8 hours, and then carrying out cut piece and performance measurement.
Manufacturing the protective layer: the production of the polyurethane elastomer protective layer adopts a 90-type extruding machine, the extrusion outer diameter is phi 22.0-phi 60mm, the maximum production speed is 70m/min, the length-diameter ratio of a screw is 20-30, the compression ratio is 2-4, a common single-screw extruder is adopted for extrusion, a water spraying device of an extruder head is adopted, a wire core is immediately sprayed with water and cooled after being extruded from a die opening, so that the surface of the sheath is smooth and round, and the polyurethane elastomer material is easy to absorb moisture due to the characteristic of the polyurethane elastomer material, and is dried for 1-2 h at 85 ℃ before production, so that no air hole is formed in the section of the produced protective layer.
8. The process of claim 7, wherein: in order to prevent the track from flattening the conductor in the insulating production process, the conductor is compressed to a certain extent when each layer of bundle is twisted in the insulating layer manufacturing process, so that the structure of the copper conductor is compact, the copper conductor is not easy to deform, and meanwhile, the outer diameter of the compressed copper conductor can be reduced by 0.05mm, the outer diameter of a finished cable is effectively reduced, and the weight of the cable is reduced.
CN201911086441.7A 2019-11-08 2019-11-08 Scrape-abrasion-resistant seawater corrosion-resistant degaussing cable and processing technology thereof Pending CN110828033A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3885120A1 (en) * 2020-03-25 2021-09-29 Nexans Subsea power cable for large water depth and manufacturing method for such a subsea power cable
CN113488267A (en) * 2021-07-19 2021-10-08 钟丽玲 Underwater composite cable

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3885120A1 (en) * 2020-03-25 2021-09-29 Nexans Subsea power cable for large water depth and manufacturing method for such a subsea power cable
CN113488267A (en) * 2021-07-19 2021-10-08 钟丽玲 Underwater composite cable
CN113488267B (en) * 2021-07-19 2022-09-27 钟丽玲 Underwater composite cable
CN113488267B8 (en) * 2021-07-19 2022-11-04 云南前列电缆有限公司 Underwater composite cable

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