CN111508655B - Manufacturing method of mixed watertight flexible cable for connector - Google Patents
Manufacturing method of mixed watertight flexible cable for connector Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/003—Power cables including electrical control or communication wires
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/14—Submarine cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/24—Devices affording localised protection against mechanical force or pressure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
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Abstract
The invention discloses a mixed watertight flexible cable for a connector and a manufacturing method thereof, wherein the mixed watertight flexible cable comprises a first twisted pair communication unit, a second twisted pair communication unit, a power unit, a filling unit, a control unit, an inner sheath and an outer sheath; a first twisted-pair communication unit is further sleeved in the inner part of the inner sheath along the axial direction of the inner sheath, and an outer sheath is further sleeved outside the inner sheath along the axial direction of the inner sheath at intervals; an annular area is formed between the inner sheath and the outer sheath, and the annular area is divided into an inner layer and an outer layer along the circumferential direction of the annular area, wherein the inner layer is a power and communication mixed layer, and the outer layer is a control layer; and a plurality of second twisted-pair communication units and power units are uniformly distributed in the power and communication mixed layer along the circumferential direction of the power and communication mixed layer at intervals in a staggered manner, and a plurality of filling units and control units are uniformly distributed in the control layer along the circumferential direction of the control layer at intervals in a staggered manner. The invention has good water tightness, flexibility, tensile property, strong anti-interference performance and the like.
Description
Technical Field
The invention relates to the technical field of wires and cables, in particular to a manufacturing method of a mixed watertight flexible cable for a connector.
Background
At present, the maximum working water depth of the watertight cable for the connector which is independently produced in China is only 7000 meters, and the application requirement of the deepwater tight-seal connector is not met, so that the research on the structural design and the forming process of the full-sea deepwater watertight cable realizes the full-sea watertightness and the structural stability of the watertight cable under ultrahigh water pressure, and the trend is formed at present.
The existing watertight cable for the connector generally adopts a structure of ethylene propylene insulation plus a chloroprene sheath or polyethylene insulation plus a polyurethane sheath; for the watertight cable for the connector which is mixed and assembled by electric power and communication, the watertight cable adopting ethylene-propylene insulation has poor communication transmission effect, only polyethylene insulation can be selected, but the connection effect of the polyurethane sheath and the connector during vulcanization is not firm in connection with the chloroprene sheath, and the maximum water depth of the connector can be influenced. For the watertight cable mixed with power and communication, the stability of the structural design has good support for the stress of the cable under water pressure, and the service life of the cable can be prolonged to a great extent; in addition, the watertight cable for the connector needs to be used through a cabin, and the cable needs to have certain flexibility and tensile resistance. Therefore, the above problems need to be solved.
Disclosure of Invention
The invention aims to provide a method for manufacturing a mixed watertight flexible cable for a connector, which has the advantages of good water tightness, flexibility, tensile property, strong interference resistance and the like.
In order to solve the technical problems, the invention adopts the following technical scheme: the invention relates to a manufacturing method of a mixed watertight flexible cable for a connector, wherein the mixed watertight flexible cable comprises a first twisted pair communication unit, a second twisted pair communication unit, a power unit, a filling unit, a control unit, an inner sheath and an outer sheath; a first twisted-pair communication unit is further sleeved in the inner part of the inner sheath along the axial direction of the inner sheath, and an outer sheath is further sleeved outside the inner sheath along the axial direction of the inner sheath at intervals; a shielding layer is further sleeved between the inner sheath and the first twisted pair communication unit along the circumferential direction, and the shielding layer is formed by weaving an aluminum-plastic composite belt and a tinned copper wire; an annular area is formed between the inner sheath and the outer sheath, and the annular area is divided into an inner layer and an outer layer along the circumferential direction of the annular area, wherein the inner layer is a power and communication mixed layer, and the outer layer is a control layer; a plurality of second twisted-pair communication units and power units are uniformly distributed in the power and communication mixed layer along the circumferential direction of the power and communication mixed layer at intervals in a staggered manner, and a plurality of filling units and control units are uniformly distributed in the control layer along the circumferential direction of the control layer at intervals in a staggered manner; insulating layers are further arranged on the surfaces of the conductors of the first twisted-pair communication unit, each second twisted-pair communication unit and each power unit along the circumferential direction of the conductors; the innovation point is that the method comprises the following steps:
(1) wire drawing and annealing: producing a monofilament from the copper-clad aluminum alloy wire through a high-precision wire drawing die in a wire drawing machine, then annealing and softening the monofilament at high temperature through an oven, cooling the monofilament with natural cold water through a water pipe, blowing and drying the monofilament to form a copper foil wire, and then winding the copper foil wire on a wire coil;
(2) bundling: winding the copper foil wires outside the bulletproof wires and twisting together, wherein the coverage rate of the copper foil wires is 100%;
(3) insulating extrusion: when the temperature of a machine barrel in the extruder reaches 350-390 ℃, uniformly and continuously coating the fluoroplastic with the temperature resistance grade higher than 200 ℃ on the conductor by using the rotating thrust of a screw through a forming die, and cooling and shaping;
(4) cabling: placing the first pair of twisted communication units in the center, sleeving a power and communication mixed layer at intervals outside the first pair of twisted communication units, ensuring the overall roundness and stability of the cable, sleeving a control layer at intervals outside the first pair of twisted communication units, twisting the power and communication mixed layer and the wire cores of the control layer in the same direction, and winding a layer of wrapping tape outside the control layer to tighten the cable so that the cable is overall soft and is prevented from being loose;
(5) weaving: selecting an aluminum-plastic composite belt and a tinned copper wire according to different cable specifications, enabling the aluminum surface of the aluminum-plastic composite belt to face outwards, and weaving the tinned copper wire on a high-speed weaving machine, wherein the weaving coverage density is more than or equal to 80%;
(6) extruding an outer sheath: extruding and melting the water-tight chloroprene sheath material by using a high-precision rubber extruding machine, and then uniformly coating the water-tight chloroprene sheath material outside the cable core after shaping by using an extrusion die; and meanwhile, the jacket layer is vulcanized through a steam pipeline, and code spraying and printing are carried out on line while the jacket is extruded.
Preferably, in the step (1), the diameter of the produced monofilaments is 0.080-0.400 mm, and 16 monofilaments can be simultaneously drawn at one time; the temperature of the oven is 500-600 ℃, and the length of the water pipe is 2-3 meters.
Preferably, in the step (2), the wire diameter of the copper foil wire is 0.10 +/-0.001 mm, the width is 0.35 +/-0.02 mm, and the thickness is 0.025 +/-0.001 mm; the bulletproof silk is made of polyaryl fiber, and the conventional size of the bulletproof silk is 200D-1000D, the tensile strength is 25cN/dtex, and the modulus is 600 cN/dtex.
Preferably, in the step (6), the water-tight neoprene sheath material is prepared from neoprene: 50% -55%, carbon black N990: 13% -15%, carbon black 550: 21% -23%, zinc oxide: 2% -4%, magnesium oxide: 2% -4%, sulfur: 0.5% -1.5%; the steam pressure of the steam pipeline is controlled to be 1.2 MPa-1.4 MPa, the temperature is controlled to be 150 ℃ -200 ℃, and no air hole exists on the extrusion surface.
The invention has the beneficial effects that:
(1) according to the invention, the conductors of the first twisted-pair communication unit, the second twisted-pair communication unit and the power unit are twisted together by adopting the bulletproof wires and the copper foil wires, so that the flexibility of the cable is improved, the current-carrying capacity of the cable is improved, the integral service environment resistance of the cable is improved, and the anti-aging service life of the cable is prolonged;
(2) the conductors of the first twisted-pair communication unit, the second twisted-pair communication unit and the power unit all adopt bulletproof wires as reinforcing cores, have high elasticity and can bear a frequently twisted use environment, so that the conductors have certain flexibility and high anti-breaking performance and can meet the use environment of repeated bending or dragging;
(3) according to the power and communication mixed loading layer, the second twisted-pair communication units and the power units are distributed at intervals in a staggered mode, and the outer diameter of each power unit is increased to be consistent with that of the second twisted-pair communication units, so that mutual interference among the communication units is reduced, and the overall stability of a cable is enhanced;
(4) the inner sheath and the outer sheath are both water-tight chloroprene sheaths, so that the softness, the tearing resistance, the water absorption performance and the elastic modulus of the cable sheath are improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a hybrid watertight flexible cable for a connector according to the present invention.
Wherein, 1-a first twisted pair communication unit; 2-a shielding layer; 3-a power unit; 4-a filler unit; 5-inner sheath; 6-outer sheath; 7-a second twisted pair communications unit; 8-a control unit.
Detailed Description
The technical solution of the present invention will be clearly and completely described by the following detailed description.
The invention discloses a mixed-loading watertight flexible cable for a connector, which comprises a first twisted-pair communication unit 1, a second twisted-pair communication unit 7, a power unit 3, a filling unit 4, a control unit 8, an inner sheath 5 and an outer sheath 6; as shown in fig. 1, a first twisted communication unit 1 is further sleeved inside the inner sheath 5 along the axial direction thereof, a shielding layer 2 is further sleeved between the inner sheath 5 and the first twisted communication unit 1 along the circumferential direction, and the shielding layer 2 is abutted against the outer surface of the first twisted communication unit 1 and the inner surface of the inner sheath 5 respectively; the outer part of the inner sheath 5 is also provided with outer sheaths 6 in an interval sleeving manner along the axial direction, an annular area is formed between the inner sheath 5 and the outer sheath 6 and is divided into an inner layer and an outer layer along the circumferential direction, the inner layer is a power and communication mixed layer, and the outer layer is a control layer. The shielding layer 2 is formed by weaving an aluminum-plastic composite belt and a tinned copper wire, and the weaving coverage density is not less than 80%, so that the structure of the shielding layer 2 is more stable and reliable, and the shielding effect is controlled to reach 100%.
In the invention, a plurality of second twisted communication units 7 and power units 3 are uniformly distributed in the power and communication mixed layer along the circumferential direction in a staggered and spaced manner, and each second twisted communication unit 7 and each power unit 3 are mutually abutted and tightly attached together and respectively abutted against the outer surface of the inner sheath 5 and the inner surface of the control layer; as shown in fig. 1, a plurality of filling units 4 and control units 8 are uniformly distributed in the control layer along the circumferential direction thereof at intervals, and each filling unit 4 and each control unit 8 are abutted against each other and tightly attached to the outer surface of the power and communication mixed layer and the inner surface of the outer sheath 6 respectively; wherein, the outer diameter of each second twisted-pair communication unit 7 is consistent with the outer diameter of the corresponding power unit 3, so that the whole cable structure is more round. The power and communication mixed layer adopts the staggered and spaced distribution of the second twisted-pair communication units 7 and the power units 3, thereby reducing the mutual interference among the communication units and enhancing the overall stability of the cable;
the conductors of the first twisted-pair communication unit 1, each second twisted-pair communication unit 7 and each power unit 3 comprise an anti-elastic wire and a copper foil wire; as shown in fig. 1, each anti-bullet wire is provided with a reinforcing core, which can bear a frequent torsion use environment, and the excellent winding resistance and moving fatigue resistance of the anti-bullet wire can ensure the service life; each bulletproof wire is also wound with a layer of copper foil wire, and the two wires are twisted together, so that the current-carrying capacity of the cable is improved, and the overall service environment resistance and aging resistance service life of the cable are improved.
As shown in fig. 1, the conductor surfaces of the first twisted pair communication unit 1, each second twisted pair communication unit 7 and each power unit 3 are further provided with insulating layers along the circumferential direction thereof, and each insulating layer is made of fluoroplastic, so that the transmission performance is better, and the insulating thickness is thinner under the same voltage class, thereby reducing gaps; in order to match the chloroprene sheath and adopt a high-temperature production process of a vulcanization pipeline, the temperature resistance level of the fluoroplastic is higher than 200 ℃.
The inner sheath 5 is adopted, so that the shielding layer 2 is in insulated contact with the outer layer, and the power and communication mixed layer can be perfectly distributed; as shown in figure 1, the inner sheath 5 and the outer sheath 6 both adopt watertight chloroprene sheaths, the tearing strength is more than or equal to 7MPa, and the water absorption capacity is less than or equal to 10mg/cm2(ii) a By adopting the watertight chloroprene rubber sheath, the softness, the tearing resistance, the water absorption performance, the elastic modulus and other performances of the inner sheath 5 and the outer sheath 6 are improved.
The invention discloses a method for manufacturing a mixed watertight flexible cable for a connector, which comprises the following steps of:
(1) wire drawing and annealing: producing a monofilament from the copper-clad aluminum alloy wire through a high-precision wire drawing die in a wire drawing machine, then annealing and softening the monofilament at high temperature through an oven, cooling the monofilament with natural cold water through a water pipe, blowing and drying the monofilament to form a copper foil wire, and then winding the copper foil wire on a wire coil;
in the steps, the diameter of the produced monofilaments is 0.080-0.400 mm, and 16 monofilaments can be simultaneously drawn at one time; the temperature of the oven is 500-600 ℃, and the length of the water pipe is 2-3 meters.
(2) Bundling: winding the copper foil wires outside the bulletproof wires and twisting together, wherein the coverage rate of the copper foil wires is 100%;
in the above steps, the wire diameter of the copper foil wire is 0.10 + -0.001 mm, the width is 0.35 + -0.02 mm, and the thickness is 0.025 + -0.001 mm; the bulletproof silk is made of polyaryl fiber, the conventional size of the bulletproof silk is 200D-1000D, the tensile strength is 25cN/dtex, the modulus is 600 cN/dtex, the bulletproof silk has excellent fatigue resistance and bending resistance, can resist high temperature of more than 400 ℃, and is used for filling and reinforcing wires and cables.
(3) Insulating extrusion: when the temperature of a machine barrel in the extruder reaches 350-390 ℃, uniformly and continuously coating the fluoroplastic with the temperature resistance grade higher than 200 ℃ on the conductor by using the rotating thrust of a screw through a forming die, and cooling and shaping;
in the steps, a high-precision deviation measuring instrument and a concave-convex instrument are adopted to monitor the insulation thickness, the outer diameter and the surface quality; the fluoroplastic is F46 type, F40 type and the like with temperature resistance grade higher than 200 ℃.
(4) Cabling: placing the first twisted communication unit 1 at the center, sleeving a power and communication mixed layer at intervals outside the first twisted communication unit 1, ensuring the overall roundness and stability of the cable, sleeving a control layer at intervals outside the first twisted communication unit, twisting the power and communication mixed layer and the wire core of the control layer in the same direction, and wrapping a wrapping belt outside the control layer to tighten the cable so that the cable is overall soft and is prevented from being loose;
in the above steps, the second twisted-pair communication units 7 and the power units 3 are uniformly distributed in the power and communication mixed layer at staggered intervals, so as to ensure the overall roundness and stability of the cable; the control unit 8 and the filling unit 4 are uniformly distributed in the control layer at staggered intervals, wherein the filling unit 4 is a filling strip for filling the gap.
(5) Weaving: selecting an aluminum-plastic composite belt and a tinned copper wire according to different cable specifications, enabling the aluminum surface of the aluminum-plastic composite belt to face outwards, and weaving the tinned copper wire on a high-speed weaving machine, wherein the weaving coverage density is more than or equal to 80%.
(6) Extruding an outer sheath: extruding and melting the water-tight chloroprene sheath material by using a high-precision rubber extruding machine, and then uniformly coating the water-tight chloroprene sheath material outside the cable core after shaping by using an extrusion die; and meanwhile, the jacket layer is vulcanized through a steam pipeline, and code spraying and printing are carried out on line while the jacket is extruded.
In the steps, the formula of the watertight chloroprene rubber sheath material is as follows: 50% -55%, carbon black N990: 13% -15%, carbon black 550: 21% -23%, zinc oxide: 2% -4%, magnesium oxide: 2% -4%, sulfur: 0.5% -1.5%; the steam pressure of the steam pipeline is controlled to be 1.2 MPa-1.4 MPa, the temperature is controlled to be 150 ℃ -200 ℃, and no air hole exists on the extrusion surface.
In the sheath extrusion process in the steps, a high-precision deviation measuring instrument and a concave-convex instrument are needed to monitor the thickness, the outer diameter and the surface quality of the sheath.
According to the invention, after the production and detection of the cable are finished, the cable is cut according to the required length of the connector, the cable and the connector are vulcanized and combined by adopting the neoprene, the vulcanization adopts vacuum heat vulcanization, the vulcanization temperature is 150-180 ℃, the time is 15min, the adhesion degree of the material can be ensured by the same chloroprene material, and the vulcanization is carried out in a vacuum state, so that no bubbles exist at the vulcanization end, and the watertight performance of the connector is enhanced.
The invention has the beneficial effects that:
(1) according to the invention, the conductors of the first twisted-pair communication unit 1, the second twisted-pair communication unit 7 and the power unit 3 are twisted together by adopting the bulletproof wires and the copper foil wires, so that the flexibility of the cable is improved, the current-carrying capacity of the cable is improved, the integral service environment resistance of the cable is improved, and the anti-aging service life of the cable is prolonged;
(2) the conductors of the first twisted-pair communication unit 1, the second twisted-pair communication unit 7 and the power unit 3 all adopt bulletproof wires as reinforcing cores, have high elasticity and can bear a frequently twisted use environment, so that the conductors have certain flexibility and high anti-breaking performance and can meet the use environment of repeated bending or dragging;
(3) according to the power and communication mixed loading layer, the second twisted-pair communication units 7 and the power units 3 are distributed at intervals in a staggered mode, and the outer diameter of the power units 3 is increased to be consistent with that of the second twisted-pair communication units 7, so that mutual interference among the communication units is reduced, and the overall stability of a cable is enhanced;
(4) the inner sheath and the outer sheath are both water-tight chloroprene sheaths, so that the softness, the tearing resistance, the water absorption performance and the elastic modulus of the cable sheath are improved.
The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art should fall into the protection scope of the present invention without departing from the design concept of the present invention, and the technical contents of the present invention as claimed are all described in the technical claims.
Claims (4)
1. A manufacturing method of a mixed watertight flexible cable for a connector comprises a first twisted pair communication unit, a second twisted pair communication unit, a power unit, a filling unit, a control unit, an inner sheath and an outer sheath; a first twisted-pair communication unit is further sleeved in the inner part of the inner sheath along the axial direction of the inner sheath, and an outer sheath is further sleeved outside the inner sheath along the axial direction of the inner sheath at intervals; a shielding layer is further sleeved between the inner sheath and the first twisted pair communication unit along the circumferential direction, and the shielding layer is formed by weaving an aluminum-plastic composite belt and a tinned copper wire; an annular area is formed between the inner sheath and the outer sheath, and the annular area is divided into an inner layer and an outer layer along the circumferential direction of the annular area, wherein the inner layer is a power and communication mixed layer, and the outer layer is a control layer; a plurality of second twisted-pair communication units and power units are uniformly distributed in the power and communication mixed layer along the circumferential direction of the power and communication mixed layer at intervals in a staggered manner, and a plurality of filling units and control units are uniformly distributed in the control layer along the circumferential direction of the control layer at intervals in a staggered manner; insulating layers are further arranged on the surfaces of the conductors of the first twisted-pair communication unit, each second twisted-pair communication unit and each power unit along the circumferential direction of the conductors; the method is characterized by comprising the following steps:
(1) wire drawing and annealing: producing a monofilament from the copper-clad aluminum alloy wire through a high-precision wire drawing die in a wire drawing machine, then annealing and softening the monofilament at high temperature through an oven, cooling the monofilament with natural cold water through a water pipe, blowing and drying the monofilament to form a copper foil wire, and then winding the copper foil wire on a wire coil;
(2) bundling: winding the copper foil wires outside the bulletproof wires and twisting together, wherein the coverage rate of the copper foil wires is 100%;
(3) insulating extrusion: when the temperature of a machine barrel in the extruder reaches 350-390 ℃, uniformly and continuously coating the fluoroplastic with the temperature resistance grade higher than 200 ℃ on the conductor by using the rotating thrust of a screw through a forming die, and cooling and shaping;
(4) cabling: placing the first pair of twisted communication units in the center, sleeving a power and communication mixed layer at intervals outside the first pair of twisted communication units, ensuring the overall roundness and stability of the cable, sleeving a control layer at intervals outside the first pair of twisted communication units, twisting the power and communication mixed layer and the wire cores of the control layer in the same direction, and winding a layer of wrapping tape outside the control layer to tighten the cable so that the cable is overall soft and is prevented from being loose;
(5) weaving: selecting an aluminum-plastic composite belt and a tinned copper wire according to different cable specifications, enabling the aluminum surface of the aluminum-plastic composite belt to face outwards, and weaving the tinned copper wire on a high-speed weaving machine, wherein the weaving coverage density is more than or equal to 80%;
(6) extruding an outer sheath: extruding and melting the water-tight chloroprene sheath material by using a high-precision rubber extruding machine, and then uniformly coating the water-tight chloroprene sheath material outside the cable core after shaping by using an extrusion die; and meanwhile, the jacket layer is vulcanized through a steam pipeline, and code spraying and printing are carried out on line while the jacket is extruded.
2. The method of manufacturing a hybrid watertight flexible cable for connector according to claim 1, wherein: in the step (1), the diameter of the produced monofilaments is 0.080-0.400 mm, and 16 monofilaments can be simultaneously drawn at one time; the temperature of the oven is 500-600 ℃, and the length of the water pipe is 2-3 meters.
3. The method of manufacturing a hybrid watertight flexible cable for connector according to claim 1, wherein: in the step (2), the wire diameter of the copper foil wire is 0.10 +/-0.001 mm, the width is 0.35 +/-0.02 mm, and the thickness is 0.025 +/-0.001 mm; the bulletproof silk is made of polyaryl fiber, and the conventional size of the bulletproof silk is 200D-1000D, the tensile strength is 25cN/dtex, and the modulus is 600 cN/dtex.
4. The method of manufacturing a hybrid watertight flexible cable for connector according to claim 1, wherein: in the step (6), the formula of the watertight neoprene sheath material is chloroprene rubber: 50% -55%, carbon black N990: 13% -15%, carbon black 550: 21% -23%, zinc oxide: 2% -4%, magnesium oxide: 2% -4%, sulfur: 0.5% -1.5%; the steam pressure of the steam pipeline is controlled to be 1.2 MPa-1.4 MPa, the temperature is controlled to be 150 ℃ -200 ℃, and no air hole exists on the extrusion surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010362606.5A CN111508655B (en) | 2020-04-30 | 2020-04-30 | Manufacturing method of mixed watertight flexible cable for connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010362606.5A CN111508655B (en) | 2020-04-30 | 2020-04-30 | Manufacturing method of mixed watertight flexible cable for connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111508655A CN111508655A (en) | 2020-08-07 |
| CN111508655B true CN111508655B (en) | 2022-03-01 |
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| CN111508655A (en) | 2020-08-07 |
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Effective date of registration: 20221228 Address after: No.1 Zhongtian Road, Hekou Town, Rudong County, Nantong City, Jiangsu Province, 226000 Patentee after: JIANGSU ZHONGTIAN TECHNOLOGY Co.,Ltd. Patentee after: ZHONGTIAN TECHNOLOGY INDUSTRIAL WIRE&CABLE SYSTEM Co.,Ltd. Address before: No.1 Zhongtian Road, Hekou Town, Rudong County, Nantong City, Jiangsu Province, 226000 Patentee before: JIANGSU ZHONGTIAN TECHNOLOGY Co.,Ltd. Patentee before: ZHONGTIAN TECHNOLOGY INDUSTRIAL WIRE&CABLE SYSTEM Co.,Ltd. Patentee before: ZHONGTIAN TECHNOLOGY MARINE SYSTEMS Co.,Ltd. |