CN112002488B - Production process of corrosion-resistant coaxial cable - Google Patents
Production process of corrosion-resistant coaxial cable Download PDFInfo
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- CN112002488B CN112002488B CN202010812070.2A CN202010812070A CN112002488B CN 112002488 B CN112002488 B CN 112002488B CN 202010812070 A CN202010812070 A CN 202010812070A CN 112002488 B CN112002488 B CN 112002488B
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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
- H01B13/016—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing co-axial cables
- H01B13/0162—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing co-axial cables of the central conductor
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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
- H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
- H01B11/1808—Construction of the conductors
- H01B11/1813—Co-axial cables with at least one braided conductor
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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
- H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
- H01B11/1834—Construction of the insulation between the conductors
- H01B11/1847—Construction of the insulation between the conductors of helical wrapped structure
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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
- H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
- H01B11/1869—Construction of the layers on the outer side of the outer conductor
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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
- H01B13/016—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing co-axial cables
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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
- H01B13/016—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing co-axial cables
- H01B13/0165—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing co-axial cables of the layers outside the outer conductor
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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
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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
- H01B13/32—Filling or coating with impervious material
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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
- H01B7/28—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
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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Abstract
The invention discloses a production process of a corrosion-resistant coaxial cable, which comprises the following steps of S1, arranging seven inner guide wires at the periphery of an inner guide core at equal intervals; step S2, extruding the high-temperature molten aluminum foil fluid at a constant speed; step S3, extruding the high-temperature molten aluminum foil fluid at a constant speed; step S4, 3-5 PE coatings with the thickness of 0.01-0.05mm are poured on the surface of the outer guide layer; step S5, performing oily film coating on the shielding layer for 2-4 times every 30-45 min; step S6, 2-4 layers of cast stone paint are evenly coated on the inner wall of the polyethylene sheath to form a cast stone paint layer with the thickness of 0.02-0.05 mm. The invention is sequentially sheathed with an inner conducting layer, an insulating layer, an outer conducting layer, a shielding layer, an inner prevention layer and an outer prevention layer from inside to outside; the inner conducting layer of the coaxial cable is made of the winding binding wires, and the right-inclined aluminum platinum strip and the left-inclined aluminum platinum strip of the single-warp single-weft weaving structure are fixedly nested in the second aluminum foil surface to form the outer conducting layer of the coaxial cable.
Description
Technical Field
The invention relates to the technical field of coaxial cables, in particular to a production process of a corrosion-resistant coaxial cable.
Background
In 1744, the electric wire has been transported to the beginning, so that the electric wire and the electric cable are formally put into practical use, the history of more than 250 years has been reached so far, in 1925, the inner conductor and the outer conductor are developed into hard conduits, and the successful manufacture of the first insulated coaxial cable made of the glass sheet marks the birth of the coaxial cable product. The function range of coaxial cables is becoming wider and wider with the continuous progress of manufacturing technology, and the coaxial cables are used as antenna feeders of radio frequency transmission and reception equipment, and relate to a plurality of technical fields such as mobile, microwave, broadcast, television, microwave relay and the like.
In order to realize the insulation between the inner core and the outer core of the coaxial cable produced and manufactured under the existing manufacturing technology, a mode of coating an insulating material by injection molding is generally adopted for the double-layer core so as to form a circle of insulating layer, and in order to achieve a better insulating effect, the insulating layer is usually made of foamed plastics, and the coaxial cable is in a continuous high-temperature state in the process of electrifying operation, and the insulating material made of the foamed materials is easy to deform and shrink due to heat absorption; in addition, as the voltage carried by the line is larger and larger, the insulation performance of the insulation material used in the traditional technology is difficult to meet the insulation requirement of higher and higher standards; finally, the coaxial cable is usually installed and used outdoors, and the harsh installation and application environment is very easy to cause corruption damage to the cable lacking in anticorrosion protection, so that the inner conductive core and the outer conductive core in the coaxial cable are very easy to be exposed outside, thereby affecting the normal transmission of the coaxial cable electrical signal.
Disclosure of Invention
The invention aims to solve the problem that the coaxial cable is difficult to be processed with corrosion resistance in the prior art, and provides a production process of the corrosion-resistant coaxial cable.
In order to achieve the purpose, the invention adopts the following technical scheme:
a production process of an anti-corrosion coaxial cable comprises an inner conducting layer (1), wherein an insulating layer (2) is sleeved outside the inner conducting layer (1), an outer conducting layer (3) is sleeved on the insulating layer (2), a shielding layer (4) is sleeved on the outer conducting layer (3), an inner protective layer (5) is sleeved on the shielding layer (4), and an outer protective layer (6) is sleeved on the inner protective layer (5); the inner guide layer (1) comprises an inner guide core (11), seven inner guide wires (12) are wrapped outside the inner guide core (11), and binding wires (13) are wrapped on the seven inner guide wires (12) in a winding manner; the insulating layer (2) comprises a first aluminum foil surface (21), and PVC bundle wires (22) are wound and wrapped on the first aluminum foil surface (21); the outer conducting layer (3) comprises a second aluminum foil surface (31), and a right-inclined aluminum platinum belt (32) and a left-inclined aluminum platinum belt (33) which are connected are arranged on the second aluminum foil surface (31); the shielding layer (4) comprises a PE foamed insulating layer (41), and a double-sided PVC bandage (42) is fixedly bonded on the PE foamed insulating layer (41); the inner waterproof layer (5) comprises an oily film waterproof layer (51), and a halogen-free flame retardant tape (52) is fixedly bonded on the oily film waterproof layer (51); the outer protective layer (6) comprises a polyethylene sheath (62), a cast stone paint layer (61) is cast and coated on the inner wall of the polyethylene sheath (62), and a PVC adhesive tape (63) is bonded on the cast stone paint layer (61) and the polyethylene sheath (62) together; the production process is characterized by comprising the following steps:
Step S1, arranging seven inner guide wires (12) at equal intervals on the periphery of the inner guide core (11), forming the inner guide wires by utilizing perfusion gel for 20-25min, and winding binding wires (13) on the inner guide wires (12) to form an inner guide layer (1) by synchronously drawing and rotating the formed inner guide core (11) and inner guide wires (12);
step S2, extruding the high-temperature molten aluminum foil fluid at a constant speed, pouring aluminum foil coating on the inner conductive layer (1), cooling for 1.5-2h to form a first aluminum foil surface (21) with the thickness of 0.07-0.1mm, and winding PVC (polyvinyl chloride) bundle wires (22) on the shaped first aluminum foil surface (21) to form an insulating layer (2);
step S3, extruding the high-temperature molten aluminum foil fluid at a constant speed, pouring an aluminum foil coating on the insulating layer (2), fixing, pressing, weaving and forming a right-inclined aluminum platinum belt (32) and a left-inclined aluminum platinum belt (33) on a second aluminum foil surface (31) with the thickness of 0.03-0.05mm, and after cooling for 1-1.5h, carrying out blade coating on the surfaces of the right-inclined aluminum platinum belt and the left-inclined aluminum platinum belt to form an outer guide layer (3) with the thickness of 0.12-0.15 mm;
step S4, 3-5 layers of PE coating with the thickness of 0.01-0.05mm are poured on the surface of the outer conducting layer (3), a PE foamed insulating layer (41) is formed after the PE foamed insulating layer is kept stand for 0.5-1h, and a PVC bandage (42) is fixedly adhered on the PE foamed insulating layer (41) through gel to form a shielding layer (4);
step S5, performing oily film casting coating on the shielding layer (4) for 2-4 times at intervals of 30-45min to form an oily film waterproof layer (51) with the thickness of 0.02-0.04mm, and then adhering a halogen-free flame retardant tape (52) on the oily film waterproof layer (51) through gel to form an inner waterproof layer (5);
Step S6, 2-4 layers of cast stone paint are evenly coated on the inner wall of the polyethylene sheath (62) to form a cast stone paint layer (61) with the thickness of 0.02-0.05mm, the polyethylene sheath (62) is wound on the inner protective layer (5), and then the PVC bandage (63) is fixedly bonded on the polyethylene sheath (62) by utilizing gel to form a finished coaxial cable.
In the present case, the purity of the aluminum foil coating used for the first aluminum foil surface (21) in step S2 is 30%, and the purity of the aluminum foil coating used for the second aluminum foil surface (31) in step S3 is 45%.
In this case, the right-leaning aluminum platinum strips (32) and the left-leaning aluminum platinum strips are located in the second aluminum foil surface (31).
Preferably, the purity of the cast stone paint in the step S6 is 45%, and the polyethylene sheath (62) and the PVC bandage (63) are distributed in the transverse direction and the longitudinal direction, respectively.
Compared with the prior art, the invention has the following advantages:
1. the invention utilizes gel to arrange seven inner guide wires which are circumferentially distributed on an inner guide core, and utilizes a winding binding wire to manufacture an inner guide layer of a coaxial cable; the second aluminum foil surface is formed by coating an aluminum foil material on the insulating layer, and a right-inclined aluminum platinum belt and a left-inclined aluminum platinum belt of a single-warp single-weft weaving structure are fixedly nested in the second aluminum foil surface to form an outer guiding layer of the coaxial cable.
2. The invention is characterized in that a first aluminum foil surface is coated on an inner conducting layer, and PVC bundle wires with insulating property are uniformly wound on the first aluminum foil surface to form an insulating effect between the inner conducting layer and an outer conducting layer; the PE foaming insulating layer is formed by pouring on the outer conducting layer, and the PVC bandage is used for locking and sealing the PE foaming insulating layer, so that the shielding layer with a secondary insulating effect is formed.
3. According to the invention, the oily film waterproof layer is formed by casting and coating on the shielding layer, so that the sealing and waterproof effects are achieved; coating the oily film waterproof layer by using a halogen-free flame-retardant belt made of polyolefin material, so that carbon dioxide and water are decomposed when the coaxial cable is subjected to combustion to inhibit the combustion; a cast stone paint layer with anti-corrosion performance is coated on the inner wall of the polyethylene sliding sleeve, and a PVC adhesive tape is fixedly bonded to provide anti-corrosion protection for the coaxial cable.
4. In summary, the invention is sequentially sleeved with the inner conducting layer, the insulating layer, the outer conducting layer, the shielding layer, the inner protective layer and the outer protective layer from inside to outside; an inner guide layer of the coaxial cable is made by utilizing a winding binding wire, and a right-inclined aluminum platinum belt and a left-inclined aluminum platinum belt of a single-warp single-weft weaving structure are fixedly nested in a second aluminum foil surface to form an outer guide layer of the coaxial cable; the insulating layer and the shielding layer are arranged in a layered manner to form two layers of insulating and shielding effects of the coaxial cable; a paint film waterproof layer and a halogen-free flame retardant tape are sequentially arranged on the shielding layer to provide waterproof and flame retardant protection for the coaxial cable; a cast stone paint layer with anti-corrosion performance is coated on the inner wall of the polyethylene sliding sleeve, and a PVC adhesive tape is fixedly bonded to provide anti-corrosion protection for the coaxial cable.
5. The production process of the coaxial cable is simple, efficient and low in cost, and the corrosion-resistant coaxial cable can be reliably produced.
Drawings
Fig. 1 is a schematic view of the structure of a coaxial cable produced by the present invention;
FIG. 2 is a schematic cross-sectional view of the inner conductive layer of a coaxial cable produced by the present invention;
FIG. 3 is a schematic view of the connection structure of the inner conductive layer and the insulating layer of the coaxial cable produced by the present invention;
FIG. 4 is a schematic view of the connection structure of the insulating layer and the outer conductive layer of the coaxial cable produced by the present invention;
FIG. 5 is a schematic view of the connection structure of the outer conductive layer and the shielding layer of the coaxial cable produced by the present invention;
FIG. 6 is a schematic view of the connection structure of the shielding layer and the inner shielding layer of the coaxial cable produced by the present invention;
fig. 7 is a schematic view of the connection structure of the inner shield layer and the outer shield layer of the coaxial cable produced by the present invention.
In the figure: the anti-corrosion plastic composite wire comprises an inner conducting layer 1, an inner conducting core 11, an inner conducting wire 12, a binding wire 13, an insulating layer 2, a first aluminum foil surface 21, a PVC bundle wire 22, an outer conducting layer 3, a second aluminum foil surface 31, an aluminum platinum belt with a right inclination 32, an aluminum platinum belt with a left inclination 33, a shielding layer 4, a foamed PE insulating layer 41, a PVC bandage 42, an inner protective layer 5, an oily film waterproof layer 51, a halogen-free flame retardant belt 52, an outer protective layer 6, a cast stone paint layer 61, a polyethylene sheath 62 and a PVC adhesive tape 63.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-7, an anti-corrosion coaxial cable comprises an inner conducting layer 1, wherein an insulating layer 2 is sleeved outside the inner conducting layer 1, an outer conducting layer 3 is sleeved on the insulating layer 2, a shielding layer 4 is sleeved on the outer conducting layer 3, an inner protective layer 5 is sleeved on the shielding layer 4, and an outer protective layer 6 is sleeved on the inner protective layer 5;
the inner guide layer 1 comprises an inner guide core 11, the inner guide core 11 adopts a metal copper wire with the diameter of 0.3-0.4mm, seven inner guide wires 12 are wrapped outside the inner guide core 11, binding wires 13 are wrapped on the seven inner guide wires 12 in a winding manner, and the binding wires 13 adopt oxygen-free copper wires with the diameter of 0.05-0.1 mm;
the insulating layer 2 comprises a first aluminum foil surface 21, a PVC bundle wire 22 is wound and wrapped on the first aluminum foil surface 21, and the PVC bundle wire 22 wraps the first aluminum foil surface 21 comprehensively so as to isolate the inner channel layer 1 from the outer conducting layer 3;
the outer conductive layer 3 includes a second aluminum foil surface 31, and the second aluminum foil surface 31 is provided with a right-inclined aluminum platinum strip 32 and a left-inclined aluminum platinum strip 33 which are connected to each other, specifically referring to fig. 1 and fig. 4, it can be seen that the right-inclined aluminum platinum strip 32 and the left-inclined aluminum platinum strip 33 are integrally nested in the second aluminum foil surface 31;
The shielding layer 4 comprises a PE foamed insulating layer 41, the PE foamed insulating layer 41 wraps the outer conducting layer 3 comprehensively, a double-sided PVC bandage 42 is fixedly bonded on the PE foamed insulating layer 41, and the double-sided PVC bandage 42 tightened on the PE foamed insulating layer 41 can seal and fix the PE foamed insulating layer 41 comprehensively so as to prevent the PE foamed insulating layer 41 from deforming due to thermal expansion;
the inner waterproof layer 5 comprises an oily film waterproof layer 51, and a halogen-free flame retardant tape 52 is fixedly bonded on the oily film waterproof layer 51;
it should be noted that:
firstly, a plurality of oil droplets are actively adhered to the oily film waterproof layer 51, and the oil droplets have water-resisting property and can isolate water molecules adhered to the coaxial cable;
second, the halogen-free flame-retardant band 52 is composed of hydrocarbon, decomposes crude carbon dioxide and water during combustion, and does not generate significant smoke and harmful gases. The polyolefin mainly comprises polyethylene and ethylene-vinyl acetate polymers, the materials do not have flame retardant effect, and the practical halogen-free flame retardant material is processed and formed by adding inorganic flame retardant and phosphorus series flame retardant.
Thirdly, due to the lack of polar groups on the molecular chain of the nonpolar substance, the hydrophobic property is caused, the affinity performance with the inorganic flame retardant is poor, and the firm combination is difficult. In order to improve the surface activity of the polyolefin, a surfactant can be added into the formula; or the polyolefin is mixed with the polymer containing polar groups for blending, thereby increasing the dosage of the flame retardant filler, improving the mechanical property and the processing property of the material and simultaneously obtaining better flame retardance.
The outer protective layer 6 comprises a polyethylene sheath 62, a cast stone paint layer 61 is coated on the inner wall of the polyethylene sheath 62, and a PVC adhesive tape 63 is jointly bonded on the cast stone paint layer 61 and the polyethylene sheath 62.
It is worth noting that:
the wear-resisting coefficient of the cast stone paint layer 61 made of the cast stone material is 0.09-0.14 g/square centimeter, the corrosion resistance is strong, the cast stone paint layer can resist corrosion of any acid and alkali besides hydrofluoric acid and hot phosphoric acid, and the existing data research shows that the acid resistance is larger than 96% and the alkali resistance is larger than 98%.
Referring specifically to fig. 1, an inner conductive layer 1, an insulating layer 2, an outer conductive layer 3, a shielding layer 4, an inner shielding layer 5 and an outer shielding layer 6 are distributed from inside to outside.
Seven inner guide wires 12 are circumferentially and equidistantly distributed outside the inner guide core 11, and the binding wires 13 are obliquely distributed, and it is noted that the seven inner guide wires 12 can also be processed into a twisted wire structure to wrap and sleeve the inner guide core 11.
Referring to fig. 4 for specific description, the right-leaning aluminum platinum ribbon 32 and the left-leaning aluminum platinum ribbon 33 adopt a single-warp single-weft woven connection manner, the right-leaning aluminum platinum ribbon 32 is positioned in the left-leaning aluminum platinum ribbon 33, and the second aluminum foil surface 31 can be subjected to comprehensive insulation treatment under the comprehensive wrapping of the left-leaning aluminum platinum ribbon 33 by the right-leaning aluminum platinum ribbon 32.
The double-sided PVC bandages 42 are circumferentially and equidistantly distributed on the PE foamed insulation layer 41, and the halogen-free flame retardant tapes 52 are circumferentially and equidistantly distributed on the oily film waterproof layer 51, so as to effectively protect the coaxial cables under the waterproof and fireproof dual insulation protection effects of the oily film waterproof layer 51 and the halogen-free flame retardant tapes 52.
A production mode of a corrosion-resistant coaxial cable comprises the following steps:
step S1, arranging seven inner guide wires 12 at equal intervals around the inner guide core 11, using perfusion gel for 20-25min to shape, standing and cooling to normal temperature, solidifying and forming the rest inner guide wires 12 of the inner guide core 11 by the gel, and winding binding wires 13 on the inner guide wires 12 to form an inner guide layer 1 by synchronously drawing and rotating the shaped inner guide core 11 and inner guide wires 12;
step S2, extruding molten aluminum foil fluid at a constant speed, pouring aluminum foil coating on the inner conductive layer 1, cooling for 1.5-2h to form a first aluminum foil surface 21 with the thickness of 0.07-0.1mm, winding PVC bundle wires 22 on the shaped first aluminum foil surface 21 to form an insulating layer 2, and insulating and sealing the inner conductive layer 1 under the overall wrapping and isolating action of the PVC bundle wires 22;
step S3, extruding the high-temperature molten aluminum foil fluid at a constant speed, pouring aluminum foil paint on the insulating layer 2, fixing a right-inclined aluminum platinum belt 32 and a left-inclined aluminum platinum belt 33 which are formed by pressing and weaving on a second aluminum foil surface 31 with the thickness of 0.03-0.05mm, cooling for 1-1.5h, and then forming an outer conductive layer 3 with the thickness of 0.12-0.15mm by blade coating on the surface;
Step S4, 3-5 layers of PE coating with the thickness of 0.01-0.05mm are poured on the surface of the outer conducting layer 3, the PE foamed insulating layer 41 is formed after standing for 0.5-1h, a PVC bandage 42 is fixedly bonded on the PE foamed insulating layer 41 through gel to form a shielding layer 4, and the outer conducting layer 3 can be insulated and sealed under the wrapping protection of the shielding layer 4;
step S5, performing oily film casting coating on the shielding layer 4 for 2-4 times every 30-45min to form an oily film waterproof layer 51 with the thickness of 0.02-0.04mm, and then adhering a halogen-free flame retardant tape 52 on the oily film waterproof layer 51 through gel to form an inner prevention layer 5;
after the oily film waterproof layer 51 and the halogen-free flame-retardant tape 52 are molded, waterproof and flame-retardant protection can be provided for the coaxial cable.
Step S6, 2-4 layers of cast stone paint are evenly coated on the inner wall of the polyethylene sheath 62 to form a cast stone paint layer 61 with the thickness of 0.02-0.05mm, the polyethylene sheath 62 is wound on the inner protective layer 5, a PVC bandage 63 is fixedly bonded on the polyethylene sheath 62 by utilizing gel to form a finished coaxial cable, and the polyethylene sheath 62 can be reinforced by utilizing the PVC bandage 63 to ensure the structural toughness of the polyethylene sheath 62 as a jacket of the coaxial cable.
The purity of the aluminum foil coating used for the first aluminum foil surface 21 in step S2 is 30%, and the purity of the aluminum foil coating used for the second aluminum foil surface 31 in step S3 is 45%, so as to ensure the structural strength and the conductivity level of the first aluminum foil surface 21 and the second aluminum foil surface 31.
The right-leaning aluminum foil strips 32 and the left-leaning aluminum foil strips are located in the second aluminum foil face 31.
In step S6, the cast stone paint has a purity of 45%, and the polyethylene sheath 62 and the PVC bandage 63 are respectively distributed in the transverse direction and the longitudinal direction, so that the cast stone paint layer 61 on the polyethylene sheath 62 has a sufficient protective effect under the reinforcing effect of the PVC bandage 63.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (2)
1. A production process of an anti-corrosion coaxial cable comprises an inner conducting layer (1), wherein an insulating layer (2) is sleeved outside the inner conducting layer (1), an outer conducting layer (3) is sleeved on the insulating layer (2), a shielding layer (4) is sleeved on the outer conducting layer (3), an inner protective layer (5) is sleeved on the shielding layer (4), and an outer protective layer (6) is sleeved on the inner protective layer (5); the inner guide layer (1) comprises an inner guide core (11), seven inner guide wires (12) are wrapped outside the inner guide core (11), and binding wires (13) are wrapped on the seven inner guide wires (12); the insulating layer (2) comprises a first aluminum foil surface (21), and PVC (polyvinyl chloride) bundle wires (22) are wound and wrapped on the first aluminum foil surface (21); the outer conducting layer (3) comprises a second aluminum foil surface (31), and a right-inclined aluminum platinum belt (32) and a left-inclined aluminum platinum belt (33) which are connected are arranged on the second aluminum foil surface (31); the shielding layer (4) comprises a PE foamed insulating layer (41), and a double-sided PVC bandage (42) is fixedly bonded on the PE foamed insulating layer (41); the inner waterproof layer (5) comprises an oily film waterproof layer (51), and a halogen-free flame retardant tape (52) is fixedly bonded on the oily film waterproof layer (51); the outer protective layer (6) comprises a polyethylene sheath (62), a cast stone paint layer (61) is cast and coated on the inner wall of the polyethylene sheath (62), and a PVC adhesive tape (63) is bonded on the cast stone paint layer (61) and the polyethylene sheath (62) together; the production process is characterized by comprising the following steps:
Step S1, arranging seven inner guide wires (12) at equal intervals on the periphery of the inner guide core (11), forming the inner guide wires by utilizing perfusion gel for 20-25min, and winding binding wires (13) on the inner guide wires (12) to form an inner guide layer (1) by synchronously drawing and rotating the formed inner guide core (11) and inner guide wires (12);
step S2, extruding molten aluminum foil fluid at a constant speed, pouring aluminum foil coating on the inner conductive layer (1), cooling for 1.5-2h to form a first aluminum foil surface (21) with the thickness of 0.07-0.1mm, and winding PVC (polyvinyl chloride) bundle wires (22) on the shaped first aluminum foil surface (21) to form an insulating layer (2), wherein the purity of the aluminum foil coating used by the first aluminum foil surface (21) is 30%;
step S3, extruding molten aluminum foil fluid at a constant speed, pouring aluminum foil paint on the insulating layer (2), fixing a right-inclined aluminum platinum belt (32) and a left-inclined aluminum platinum belt (33) which are formed by pressing and weaving on a second aluminum foil surface (31) with the thickness of 0.03-0.05mm, cooling for 1-1.5h, and then carrying out blade coating on the surfaces of the right-inclined aluminum platinum belt and the left-inclined aluminum platinum belt to form an outer guide layer (3) with the thickness of 0.12-0.15mm, wherein the purity of the aluminum foil paint used by the second aluminum foil surface (31) is 45%;
step S4, 3-5 layers of PE coating with the thickness of 0.01-0.05mm are poured on the surface of the outer conducting layer (3), a PE foamed insulating layer (41) is formed after standing for 0.5-1h, and a PVC bandage (42) is fixedly bonded on the PE foamed insulating layer (41) through gel to form a shielding layer (4);
Step S5, performing oily film coating for 2-4 times every 30-45min on the shielding layer (4) to form an oily film waterproof layer (51) with the thickness of 0.02-0.04mm, and then adhering a halogen-free flame retardant tape (52) on the oily film waterproof layer (51) through gel to form an inner waterproof layer (5);
step S6, 2-4 layers of cast stone paint are evenly poured on the inner wall of the polyethylene sheath (62) to form a cast stone paint layer (61) with the thickness of 0.02-0.05mm, the polyethylene sheath (62) is wound on the inner protective layer (5), and then the PVC sticky tape (63) is fixedly bonded on the polyethylene sheath (62) by utilizing gel to form a coaxial cable finished product.
2. Process for the production of a corrosion-resistant coaxial cable according to claim 1, characterized in that the right-leaning band (32) and the left-leaning band are positioned in the second aluminum foil face (31).
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6756538B1 (en) * | 2003-01-29 | 2004-06-29 | Conductores Monterrey S.A. De C.V. | Coaxial cable having improved mechanical and electrical properties |
| CN201440348U (en) * | 2009-08-27 | 2010-04-21 | 浙江天杰实业有限公司 | Water-resisting coaxial cable |
| CN202474168U (en) * | 2012-02-16 | 2012-10-03 | 江苏通光电子线缆股份有限公司 | Low-attenuation semi-flexible coaxial radio frequency cable |
| CN204760129U (en) * | 2015-06-15 | 2015-11-11 | 江苏艾力升电缆有限公司 | Super gentle wear -resisting coaxial cable |
| CN105097100A (en) * | 2015-09-15 | 2015-11-25 | 桂林绿元科技有限公司 | Internal filled waterproof wire bundle and fabrication method thereof |
| CN105825939A (en) * | 2016-05-26 | 2016-08-03 | 天津朗兴电线电缆有限公司 | Watertight cable for underwater robots and manufacturing method thereof |
| CN205920818U (en) * | 2016-07-15 | 2017-02-01 | 江苏东强股份有限公司 | Fixed communication cable that buries with laying |
| CN208208421U (en) * | 2018-05-29 | 2018-12-07 | 浙江康宇电缆有限公司 | 8k coaxial cable |
| CN109102959A (en) * | 2018-07-06 | 2018-12-28 | 浙江天杰实业股份有限公司 | A kind of high shielding coaxial cable and preparation method thereof |
| CN210429377U (en) * | 2019-09-27 | 2020-04-28 | 江苏省产品质量监督检验研究院 | Cable with flame-retardant water-blocking function |
-
2020
- 2020-08-13 CN CN202010812070.2A patent/CN112002488B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6756538B1 (en) * | 2003-01-29 | 2004-06-29 | Conductores Monterrey S.A. De C.V. | Coaxial cable having improved mechanical and electrical properties |
| CN201440348U (en) * | 2009-08-27 | 2010-04-21 | 浙江天杰实业有限公司 | Water-resisting coaxial cable |
| CN202474168U (en) * | 2012-02-16 | 2012-10-03 | 江苏通光电子线缆股份有限公司 | Low-attenuation semi-flexible coaxial radio frequency cable |
| CN204760129U (en) * | 2015-06-15 | 2015-11-11 | 江苏艾力升电缆有限公司 | Super gentle wear -resisting coaxial cable |
| CN105097100A (en) * | 2015-09-15 | 2015-11-25 | 桂林绿元科技有限公司 | Internal filled waterproof wire bundle and fabrication method thereof |
| CN105825939A (en) * | 2016-05-26 | 2016-08-03 | 天津朗兴电线电缆有限公司 | Watertight cable for underwater robots and manufacturing method thereof |
| CN205920818U (en) * | 2016-07-15 | 2017-02-01 | 江苏东强股份有限公司 | Fixed communication cable that buries with laying |
| CN208208421U (en) * | 2018-05-29 | 2018-12-07 | 浙江康宇电缆有限公司 | 8k coaxial cable |
| CN109102959A (en) * | 2018-07-06 | 2018-12-28 | 浙江天杰实业股份有限公司 | A kind of high shielding coaxial cable and preparation method thereof |
| CN210429377U (en) * | 2019-09-27 | 2020-04-28 | 江苏省产品质量监督检验研究院 | Cable with flame-retardant water-blocking function |
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