CN105390202B - Cable in control cabinet and manufacturing method of cable - Google Patents
Cable in control cabinet and manufacturing method of cable Download PDFInfo
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- CN105390202B CN105390202B CN201510927133.8A CN201510927133A CN105390202B CN 105390202 B CN105390202 B CN 105390202B CN 201510927133 A CN201510927133 A CN 201510927133A CN 105390202 B CN105390202 B CN 105390202B
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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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- 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
- H01B13/02—Stranding-up
Abstract
The invention discloses a cable in a control cabinet. The structure of the cable is as follows: each insulating layer wraps the outside of each conductor to form a wire core; a plurality of wire cores are twisted to form a cable core; the cable core is wrapped with a lapping layer; a metal tape wraps the outside of the lapping layer as a shielding layer; a sheath layer wraps the outside of the shielding layer; each insulating layer is formed by extruding and wrapping a low-smoke non-halogen and flame-retardant polyolefin material; a polyester tape is adopted as the lapping layer; a copper tape is adopted as the shielding layer; and the material of the sheath layer is a high-flame retardant and low-smoke non-halogen material. The manufacturing method of the cable comprises the following steps: (1) manufacturing the conductors; (2) manufacturing the wire cores; (3) manufacturing the cable core; (4) wrapping the cable core with the shielding layer; and (5) extruding and wrapping the shielding layer with a sheath. Specific techniques are adopted in various steps, so that the properties of the electrical property, the mechanical property and the like of the cable manufactured by the method can reach or exceed the detection requirements; and the cable with high flame retardant property in the control cabinet simultaneously has low-smoke non-halogen property and high flame retardant property, and is applicable to the inside of an electric control cabinet.
Description
Technical field
The technical program is related to field of cable technology, more particularly, to switch board inner cable and its manufacture method.
Background technology
Typically all contain halogen in the interior cable material of existing switch board, and fire resistance can only meet iec60332-
3-25 (d class) or iec60332-3-24 (c class) flame-retardancy requirements.
Because cable material contains halogen, in the event of a fire, the harmful gass such as hcl are produced during burning
With a large amount of smog, endanger healthy, the etching apparatus of personnel.And adopt the cable of low smoke and zero halogen material in case of fire,
Do not produce the harmful gass such as hcl, the smog discharging during burning seldom, reduces the harm to personnel and the corrosion to equipment.Using
The cable of high flame resistance, reduces the rate of fire travel, provides valuable time for personnel escape under fire condition.So using
The low smoke and zero halogen switch board inner cable with high flame resistance is trend of the times.
Content of the invention:
The technical program proposes a kind of low smoke and zero halogen switch board inner cable of high flame resistance, and its material is all using low cigarette
Bittern-free flame-proof material, fire resistance can reach iec60332-3-23 (b class) flame-retardancy requirements.
In order to solve the problems, such as low smoke and zero halogen, and this construction of cable is made to meet the technical program such as other electricity, mechanical performance
A kind of switch board inner cable is proposed, its structure is: conductor outer wrapping insulating barrier constitutes core, the stranded composition cable core of many cores,
Cable core is enclosed with lapping layer, further around bag metal tape as screen layer outside lapping layer；It is restrictive coating outside screen layer；Described insulating barrier is
Composition is extruded using low-smoke halide-free fireproof composite polyolefine material (the optional trade mark is the cable insulating material of fpw505)；Described lapping layer is adopted
With polyester belt, rate of putting up is not less than 15%；Described screen layer adopts metal mask tape (such as copper strips), and the rate of putting up is not less than
25%.The material of described restrictive coating is high flame resistance, low smoke halogen-free material (the optional trade mark is the cable jacket material of hw461-9a).
By the way of described conductor is stranded using many, stranded lay ratio is not more than 20.Many core stranded composition cable cores
Lay ratio is not more than 30.Restrictive coating THICKNESS CONTROL scope is 1.4mm～1.6mm.
Above-mentioned cable encounters problem in actual production: due to using new structure, using traditional processing technology, or
It is empirically to wait to be modified all cannot producing the cable reaching theoretical performance on traditional processing technology, or even cannot give birth to
Produce the cable meeting custom requirements.For this reason, the present invention proposes a kind of new manufacture method, it is exclusively used in this cable, specific as follows:
For this reason, the technical program proposes a kind of new targetedly manufacture method, step includes:
1) manufacture conductor: require according to conductor line footpath, be made by twisting using many soft round copper monofilament；
Described metal monofilament from-inner-to-outer is divided into multilamellar；Adjacent two metal monofilament in every layer of metal monofilament are mutually tight
Laminating；In adjacent two layers metal monofilament, inside and outside layer metal monofilament fits tightly；The direction of lay of outermost metal monofilament is a left side
To the direction of lay of adjacent two layers metal monofilament is contrary；
The stranded lay ratio of conductor is not more than 20；
2) manufacture core: using the mode that extrudes, Insulation Material is wrapped in outside conductor, then sectioned water cooling is carried out to core cold
But；
Extrude: be certainly fed to discharging direction, the fuselage warm area of extruding machine is 120～140 DEG C of an area, two areas 140～160
DEG C, 150～170 DEG C of 3rd area, 160～180 DEG C of 4th area, 160～180 DEG C of head temperature scope；Wherein, an area is pan feeding section, two
Area and 3rd area are fluxing zone, and 4th area are homogenizing zone.
When insulating exruded, the degree of eccentricity is not more than 20%；
Cooling: terminate to cooling from extruding machine discharging opening, be divided into following cooled region:
The temperature range of the cooling water in one area is 40～50 DEG C, the temperature range of the cooling water in 2nd area is room temperature；
According to the linear velocity of core in production process, control length and the volume of cooling pond, the line after making cooling terminate
The temperature of core is consistent with the water temperature of corresponding cooling water；
After cooling is complete, it is dried process；
Using this technique, it is possible to reduce crude, the unequal defective workmanship of core surface of insulating layer.
3) manufacture cable core: many cores are made by twisting cable core, stranding lay ratio is not more than 30 times；Outer wrapped poly- in cable core again
Ester band, rate of putting up is not less than 15%；
Described core from-inner-to-outer is divided into multilamellar；Adjacent both threads core in every layer line core mutually fits tightly；Adjacent two
In layer line core, inside and outside layer line core fits tightly；The direction of lay of adjacent two layers core is contrary；The lapping direction of polyester belt with
The direction of lay of outer layer core is contrary；
4) wrap up screen layer: in the outer wrapped metal mask tape of polyester belt；Metal mask tape is put up rate and is not less than 25%；Metal
The lapping direction of shielding band is contrary with the lapping direction of polyester belt；
5) extrude sheath: using the mode that extrudes, restrictive coating is wrapped in outside cable core, constitutes cable；Sheath extrudes using extruding
Formula, the type of cooling adopts sectioned water cooling to cool down；
Extrude: be certainly fed to discharging direction, the fuselage warm area of rubber extruding machine is 115～125 DEG C of an area, two areas 125～135
DEG C, 145～155 DEG C of 3rd area, 160～170 DEG C of 4th area, 165～175 DEG C of 5th area, 165～175 DEG C of head temperature scope；Wherein,
One area is pan feeding section, and 2nd area and 3rd area are fluxing zone, and four He Wu areas of area are homogenizing zone.
Cooling: terminate to cooling from rubber extruding machine discharging opening, be divided into following cooled region:
The temperature range of the cooling water in one area is 40～60 DEG C, the temperature range of the cooling water in 2nd area is room temperature；According to life
The linear velocity of core during product, controls the length of cooling pond and volume, the temperature of the core after making cooling terminate with corresponding
The water temperature of cooling water is consistent；
After cooling is complete, it is dried process.Using this technique, it is possible to reduce crude, the section of jacket surface have gas
The defective workmanships such as hole.
Described step 2) and step 5) in dried be all to be dried up using compressed air.
As preferably 1:
Described step 2) in
Extrude: 120 DEG C of an area, 140 DEG C of 2nd area, 150 DEG C of 3rd area, 160 DEG C of 4th area, 160 DEG C of head；
Cooling: the temperature range of the cooling water in an area be [48,50 DEG C], the temperature range of the cooling water in 2nd area be produce existing
Field room temperature；
Described step 5) in
Extrude: 115 DEG C of an area, 135 DEG C of 2nd area, 145 DEG C of 3rd area, 160 DEG C of 4th area, 175 DEG C of 5th area, 175 DEG C of head；
Cooling: the temperature range of the cooling water in an area is [50,60 DEG C], the temperature range of the cooling water in 2nd area is room temperature.
As preferably 2:
Described step 2) in
Extrude: 130 DEG C of an area, 150 DEG C of 2nd area, 160 DEG C of 3rd area, 170 DEG C of 4th area, 170 DEG C of head；
Cooling: the temperature range of the cooling water in an area is (43,48 DEG C), the temperature range of the cooling water in 2nd area is room temperature；
Described step 5) in
Extrude: 120 DEG C of an area, 130 DEG C of 2nd area, 150 DEG C of 3rd area, 4th area, 5th area and head are 170 DEG C；
Cooling: the temperature range of the cooling water in an area is [40,43 DEG C], the temperature range of the cooling water in 2nd area is room temperature.
As preferably 3:
Described step 2) in
Extrude: 140 DEG C of an area, 160 DEG C of 2nd area, 170 DEG C of 3rd area, 180 DEG C of 4th area, 180 DEG C of head；
Cooling: the temperature range of the cooling water in an area is [40,43 DEG C], the temperature range of the cooling water in 2nd area is room temperature；
Described step 5) in
Extrude: an area and 2nd area are 125 DEG C, 155 DEG C of 3rd area, 4th area, 5th area and head and are 165 DEG C；
Cooling: the temperature range of the cooling water in an area is (43,50 DEG C), the temperature range of the cooling water in 2nd area is room temperature.
Using this method, the design requirement of cable can be realized completely, the first-time qualification rate that this method manufactures cable reaches greatly
In 98.7%, prepared cable performance can reach completely or exceed examination criteria.Wherein, the one of the cable that preferred version 1 is obtained
Secondary qualification rate is 99.8%, and the first-time qualification rate of the cable that preferred version 1 and 2 is obtained is respectively 99.1% and 99.5%.
In the present invention, for improving the pliability of cable, by the way of conductor is stranded using many.Insulant adopts low cigarette no
Halogen flame-proof cross-linking polyolefine material, insulation is closely extruded on conductor.The stranded composition cable core of many insulated wire cores, cable core is outer wrapped
Metal tape adopts high flame resistance sheath material as screen layer, sheath.Insulation adopts low-smoke non-halogen flame-retardant cross-linked polyolefin, makes
Core has fire resistance, thus improving cable overall flame performance.Sheath adopts high flame resistance, low smoke Halogen protective cover material it is ensured that electricity
Cable has high flame resistance.Cable insulation and sheath material all using halogen-free low-smoke flame retardant material, in combustion, no
The generation of the harmful gass such as hcl, the burst size of smog when reducing burning, reduces the rate of fire travel simultaneously.Reduce to personnel's
Harm and the corrosion to equipment.The switch board inner cable that the technical program proposes is provided simultaneously with low smoke and zero halogen and high flame resistance,
It is applied in electrical control cabinet.
Brief description
Fig. 1 is the cable radial section structural representation of the present embodiment.
In figure: 1, conductor, 2, insulating barrier, 3, lapping layer, 4, screen layer, 5, sheath.
Fig. 2 is the production technological process of the cable of the present embodiment.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is further described.
Embodiment as shown in Figure 1 is as follows:
A kind of switch board inner cable, its structure is: conductor outer wrapping insulating barrier constitutes core, the stranded composition cable of many cores
Core, cable core is enclosed with lapping layer, further around bag metal tape as screen layer outside lapping layer；It is restrictive coating outside screen layer；Described insulation
Layer is to extrude composition using low-smoke halide-free fireproof composite polyolefine material (the optional trade mark is the cable insulating material of fpw505)；Described wrapped
Layer adopts polyester belt, and rate of putting up is not less than 15%；Described screen layer adopts copper strips, and rate of putting up is not less than 25%.Described restrictive coating
Material be the high flame resistance, low smoke halogen-free material cable jacket material of hw461-9a (the optional trade mark be).Described conductor adopts many strands
The mode closed, stranded lay ratio is not more than 20.Restrictive coating THICKNESS CONTROL scope is 1.4mm～1.6mm.
By the way of described conductor is stranded using many, stranded lay ratio is not more than 20.Many core stranded composition cable cores
Lay ratio is not more than 30.Restrictive coating THICKNESS CONTROL scope is 1.4mm～1.6mm.
1 conductor: by 2 stranded classes of soft round copper wire or 5 class conductors.
2 insulation: insulation is extruded using low-smoke non-halogen flame-retardant crosslinked polyolefin materials and forms.
3 lapping layers: lapping layer adopts polyester belt.
4 shieldings: shielding adopts the wrapped shielding of metal tape (copper strips).
5 sheaths: sheath is extruded using high flame resistance, low smoke halogen-free material and forms.
Conductor is made by twisting using many soft round copper wires, the outside extruded insulation layer of conductor.By each insulated wire cores twisted synthesizing cable
Core, the outer wrapped lapping layer of cable core.Each insulated wire cores are tightly bound in together by lapping layer, have carried out stabilized treatment to cable core.?
Metallic tape shield is adopted, for shielding external interference signals outside lapping layer.The outer extrude sheath of metallic tape shield, sheath adopts high resistant
Combustion low smoke and zero halogen material is it is ensured that the high flame resistance of cable.
The cable of the present embodiment, its manufacture method such as Fig. 2, including step:
1) manufacture conductor: required according to conductor line footpath, using many soft round copper wires (such as: 19, single diameter 0.193mm；
Or 7, single a diameter of 0.23mm) it is made by twisting；The stranded lay ratio of conductor is not more than 20 times.
2) manufacture core: using the mode that extrudes, insulating barrier is wrapped in outside conductor, constitutes core；Extrusion way is using extruding
Formula it is ensured that insulation compactness.The core type of cooling adopts sub-sectional cooling.
3) manufacture cable core: many cores are made by twisting cable core, stranding lay ratio is not more than 30 times；In the outer wrapped polyester of cable core
Band, rate of putting up is not less than 15%.
4) wrap up screen layer: in the outer wrapped metal mask tape of cable core；Metal tape is put up rate and is not less than 25%.
5) extrude sheath: the cable core after shielding is wrapped in restrictive coating outside cable core using the mode that extrudes, constitutes cable；Sheath
Extrude and adopt squash type, the type of cooling adopts sub-sectional cooling.
Specific technological requirement is:
1) manufacture conductor: require according to conductor line footpath, be made by twisting using many soft round copper monofilament；
Described metal monofilament from-inner-to-outer is divided into multilamellar；Adjacent two metal monofilament in every layer of metal monofilament are mutually tight
Laminating；In adjacent two layers metal monofilament, inside and outside layer metal monofilament fits tightly；The direction of lay of outermost metal monofilament is a left side
To the direction of lay of adjacent two layers metal monofilament is contrary；
The stranded lay ratio of conductor is not more than 20；
2) manufacture core: using the mode that extrudes, Insulation Material is wrapped in outside conductor, then sectioned water cooling is carried out to core cold
But；
Extrude: be certainly fed to discharging direction, the fuselage warm area of extruding machine is 120～140 DEG C of an area, two areas 140～160
DEG C, 150～170 DEG C of 3rd area, 160～180 DEG C of 4th area；Wherein, an area is pan feeding section, and 2nd area and 3rd area are fluxing zone, and 4th area are
Homogenizing zone；160～180 DEG C of head temperature scope.
When insulating exruded, the degree of eccentricity is not more than 20%；
Cooling: terminate to cooling from extruding machine discharging opening, be divided into following cooled region:
The temperature range of the cooling water in one area is 40～50 DEG C, the temperature range of the cooling water in 2nd area is room temperature；
According to the linear velocity of core in production process, control length and the volume of cooling pond, the line after making cooling terminate
The temperature of core is consistent with the water temperature of corresponding cooling water；
After cooling is complete, it is dried process；
Using this technique, it is possible to reduce crude, the unequal defective workmanship of core surface of insulating layer.
3) manufacture cable core: many cores are made by twisting cable core, stranding lay ratio is not more than 30 times；Outer wrapped poly- in cable core again
Ester band, rate of putting up is not less than 15%；
Described core from-inner-to-outer is divided into multilamellar；Adjacent both threads core in every layer line core mutually fits tightly；Adjacent two
In layer line core, inside and outside layer line core fits tightly；The direction of lay of adjacent two layers core is contrary；The lapping direction of polyester belt with
The direction of lay of outer layer core is contrary；
4) wrap up screen layer: in the outer wrapped metal mask tape of polyester belt；Metal mask tape is put up rate and is not less than 25%；Metal
The lapping direction of shielding band is contrary with the lapping direction of polyester belt；
5) extrude sheath: using the mode that extrudes, restrictive coating is wrapped in outside cable core, constitutes cable；Sheath extrudes using extruding
Formula, the type of cooling adopts sectioned water cooling to cool down；
Extrude: be certainly fed to discharging direction, the fuselage warm area of rubber extruding machine is 115～125 DEG C of an area, two areas 125～135
DEG C, 145～155 DEG C of 3rd area, 160～170 DEG C of 4th area, 165～175 DEG C of 5th area；Wherein, an area is pan feeding section, 2nd area and 3rd area
For fluxing zone, four He Wu areas of area are homogenizing zone；165～175 DEG C of head temperature scope.
Cooling: terminate to cooling from rubber extruding machine discharging opening, be divided into following cooled region:
The temperature range of the cooling water in one area is 40～60 DEG C, the temperature range of the cooling water in 2nd area is room temperature；
According to the linear velocity of core in production process, control length and the volume of cooling pond, the line after making cooling terminate
The temperature of core is consistent with the water temperature of corresponding cooling water；
After cooling is complete, it is dried process.Using this technique, it is possible to reduce crude, the section of jacket surface have gas
The defective workmanships such as hole.
Described step 2) and step 5) in dried be all to be dried up using compressed air.
Example 1:
Described step 2) in
Extrude: 120 DEG C of an area, 140 DEG C of 2nd area, 150 DEG C of 3rd area, 160 DEG C of 4th area；
Cooling: the temperature range of the cooling water in an area be [48,50 DEG C], the temperature range of the cooling water in 2nd area be produce existing
Field room temperature；
Described step 5) in
Extrude: 115 DEG C of an area, 135 DEG C of 2nd area, 145 DEG C of 3rd area, 160 DEG C of 4th area, 175 DEG C of 5th area；
Cooling: the temperature range of the cooling water in an area is [50,60 DEG C], the temperature range of the cooling water in 2nd area is to produce
Scene.
Example 2:
Described step 2) in
Extrude: 130 DEG C of an area, 150 DEG C of 2nd area, 160 DEG C of 3rd area, 170 DEG C of 4th area；
Cooling: the temperature range of the cooling water in an area is (43,48 DEG C), the temperature range of the cooling water in 2nd area is room temperature；
Described step 5) in
Extrude: 120 DEG C of an area, 130 DEG C of 2nd area, 150 DEG C of 3rd area, four He Wu areas of area are 170 DEG C；
Cooling: the temperature range of the cooling water in an area is [40,43 DEG C], the temperature range of the cooling water in 2nd area is room temperature.
Example 3:
Described step 2) in
Extrude: 140 DEG C of an area, 160 DEG C of 2nd area, 170 DEG C of 3rd area, 180 DEG C of 4th area；
Cooling: the temperature range of the cooling water in an area is [40,43 DEG C], the temperature range of the cooling water in 2nd area is room temperature；
Described step 5) in
Extrude: an area and 2nd area be 125 DEG C, 155 DEG C of 3rd area, four He Wu areas of area be 165 DEG C；
Cooling: the temperature range of the cooling water in an area is (43,50 DEG C), the temperature range of the cooling water in 2nd area is room
Temperature.
The use of this cable: cable laying is in electrical control cabinet.
Experiment proves that, the performance of this cable is as follows:
Cable-flame retardant performance: cable can pass through iec60332-3-23 (b class) flame-retardancy requirements.
Electrical property:
1st, 20 DEG C of conductor DC resistances meet iec60228 or gb/t3956 regulation.
2nd, ac voltage withstanding test: apply 1.0kv alternating voltage, continue 5min, process of the test insulation does not puncture.
Mechanical performance:
1st, mechanical performance before insulation ag(e)ing: tensile strength >=9.0mpa, elongation at break >=125%.
2nd, mechanical performance (135 ± 3 DEG C, 7d) after insulation ag(e)ing: tensile strength and elongation at break rate of change≤± 25%.
3rd, the aging front mechanical performance of sheath: tensile strength >=9.0mpa, elongation at break >=125%.
4th, the aging rear mechanical performance (100 ± 3 DEG C, 7d) of sheath: tensile strength and elongation at break rate of change≤± 40%.
5th, the heat that insulate extends: 200 ± 3 DEG C, 10min, 20n/cm2Under the conditions of；Under load, maximum elongation rate is not more than
175%, permanent elongation is not more than 15%.
Fire resistance:
1st, core and cable gb/t18380 regulation by single vertical combustion test.
2nd, the b class bunched burning test that cable is specified by gb/t18380.
Claims (8)
1. a kind of manufacture method of switch board inner cable, is characterized in that
The structure of described cable is: conductor outer wrapping insulating barrier constitutes core, the stranded composition cable core of many cores, and cable core is enclosed with
Lapping layer, further around bag metal tape as screen layer outside lapping layer；Screen layer outer wrapping restrictive coating；Described insulating barrier is using low cigarette
Halogen-free anti-flaming polyolefin material extrudes composition；Described lapping layer adopts polyester belt, and rate of putting up is not less than 15%；Described screen layer is adopted
With metal mask tape, rate of putting up is not less than 25%；The material of described restrictive coating is high flame resistance, low smoke halogen-free material；
The manufacture method of described cable, its step includes:
1) manufacture conductor: require according to conductor line footpath, be made by twisting using many soft round copper monofilament；
Described metal monofilament from-inner-to-outer is divided into multilamellar；Adjacent two metal monofilament in every layer of metal monofilament mutually closely paste
Close；In adjacent two layers metal monofilament, inside and outside layer metal monofilament fits tightly；The direction of lay of outermost metal monofilament is left-hand,
The direction of lay of adjacent two layers metal monofilament is contrary；
The stranded lay ratio of conductor is not more than 20；
2) manufacture core: using the mode that extrudes, Insulation Material is wrapped in outside conductor, then sectioned water cooling cooling is carried out to core；
Extrude: be certainly fed to discharging direction, the fuselage warm area of extruding machine is 120～140 DEG C of an area, 140～160 DEG C of 2nd area, three
150～170 DEG C of area, 160～180 DEG C of 4th area, 160～180 DEG C of head temperature scope；Wherein, an area is pan feeding section, 2nd area and three
Area is fluxing zone, and 4th area are homogenizing zone；
When insulating exruded, the degree of eccentricity is not more than 20%；
Cooling: terminate to cooling from extruding machine discharging opening, be divided into following cooled region:
The temperature range of the cooling water in one area is 40～50 DEG C, the temperature of the cooling water in 2nd area is 25 DEG C；
After cooling is complete, it is dried process；
3) manufacture cable core: many cores are made by twisting cable core, stranding lay ratio is not more than 30 times；Again in the outer wrapped polyester of cable core
Band, rate of putting up is not less than 15%；
Described core from-inner-to-outer is divided into multilamellar；Adjacent both threads core in every layer line core mutually fits tightly；Adjacent two layers line
In core, inside and outside layer line core fits tightly；The direction of lay of adjacent two layers core is contrary；The lapping direction of polyester belt and outermost layer
The direction of lay of core is contrary；
4) wrap up screen layer: in the outer wrapped metal mask tape of polyester belt；Metal mask tape is put up rate and is not less than 25%；Metallic shield
The lapping direction of band is contrary with the lapping direction of polyester belt；
5) extrude sheath: using the mode that extrudes, restrictive coating is wrapped in outside cable core, constitutes cable；Sheath extrudes and adopts squash type,
The type of cooling adopts sectioned water cooling to cool down；
Extrude: be certainly fed to discharging direction, the fuselage warm area of rubber extruding machine is 115～125 DEG C of an area, 125～135 DEG C of 2nd area, three
145～155 DEG C of area, 160～170 DEG C of 4th area, 165～175 DEG C of 5th area, 165～175 DEG C of head temperature scope；Wherein, an area is
Pan feeding section, 2nd area and 3rd area are fluxing zone, and four He Wu areas of area are homogenizing zone；
Cooling: terminate to cooling from rubber extruding machine discharging opening, be divided into following cooled region:
The temperature range of the cooling water in one area is 40～60 DEG C, the temperature of the cooling water in 2nd area is 25 DEG C；
According to the linear velocity of core in production process, control length and the volume of cooling pond, the core after making cooling terminate
Temperature is consistent with the water temperature of corresponding cooling water；
After cooling is complete, it is dried process.
2. the manufacture method of cable according to claim 1, is characterized in that described step 2) and step 5) in be dried at
Reason is all to be dried up using compressed air.
3. the manufacture method of cable according to claim 1, is characterized in that
Described step 2) in
Extrude: 120 DEG C of an area, 140 DEG C of 2nd area, 150 DEG C of 3rd area, 160 DEG C of 4th area, 160 DEG C of head；
Cooling: the temperature range of the cooling water in an area is 48 DEG C～50 DEG C, the temperature of the cooling water in 2nd area is 25 DEG C；
Described step 5) in
Extrude: 115 DEG C of an area, 135 DEG C of 2nd area, 145 DEG C of 3rd area, 160 DEG C of 4th area, 175 DEG C of 5th area, 175 DEG C of head；
Cooling: the temperature range of the cooling water in an area is 50 DEG C～60 DEG C, the temperature of the cooling water in 2nd area is 25 DEG C.
4. the manufacture method of cable according to claim 1, is characterized in that
Described step 2) in
Extrude: 130 DEG C of an area, 150 DEG C of 2nd area, 160 DEG C of 3rd area, 170 DEG C of 4th area, 170 DEG C of head；
Cooling: the temperature range of the cooling water in an area is 43～48 DEG C, but do not contain 43 DEG C and 48 DEG C of two end values；The cooling in 2nd area
The temperature of water is 25 DEG C；
Described step 5) in
Extrude: 120 DEG C of an area, 130 DEG C of 2nd area, 150 DEG C of 3rd area, 4th area, 5th area and head are 170 DEG C；
Cooling: the temperature range of the cooling water in an area is 40～43 DEG C, the temperature of the cooling water in 2nd area is 25 DEG C.
5. the manufacture method of cable according to claim 1, is characterized in that
Described step 2) in
Extrude: 140 DEG C of an area, 160 DEG C of 2nd area, 170 DEG C of 3rd area, 180 DEG C of 4th area, 180 DEG C of head；
Cooling: the temperature range of the cooling water in an area is 40～43 DEG C, the temperature of the cooling water in 2nd area is 25 DEG C；
Described step 5) in
Extrude: an area and 2nd area are 125 DEG C, 155 DEG C of 3rd area, 4th area, 5th area and head and are 165 DEG C；
Cooling: the temperature range of the cooling water in an area is 43～50 DEG C, but do not contain 43 DEG C and 50 DEG C of two end values；The cooling in 2nd area
The temperature of water is 25 DEG C.
6. the manufacture method of cable according to claim 1, by the way of it is characterized in that described conductor is stranded using many, twists
Close lay ratio and be not more than 20.
7. the manufacture method of cable according to claim 1, is characterized in that the lay ratio of many core stranded composition cable cores
It is not more than 30.
8. the manufacture method of cable according to claim 1, it is characterized in that restrictive coating THICKNESS CONTROL scope be 1.4mm～
1.6mm.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105913919A (en) * | 2016-06-24 | 2016-08-31 | 安徽宜德电子有限公司 | Manufacturing method of ultrathin and flat flexible digital cable |
| CN109935393A (en) * | 2017-12-15 | 2019-06-25 | 上海福尔欣线缆有限公司 | Automobile shielded cable and its manufacturing method |
| CN109065262B (en) * | 2018-07-27 | 2019-11-19 | 重庆永富电线电缆有限公司 | The manufacturing process of copper core PVC-insulated cable |
| CN109585064A (en) * | 2018-11-22 | 2019-04-05 | 江苏上上电缆集团有限公司 | A kind of manufacturing method and cable of longitudinal direction radial water-resisting medium-pressure power cable |
| CN109448892A (en) * | 2018-12-19 | 2019-03-08 | 江苏上上电缆集团有限公司 | A kind of hollow cable manufacturing method and cable |
| CN114005610B (en) * | 2021-10-25 | 2023-08-22 | 江苏上上电缆集团有限公司 | Manufacturing method of control cable suitable for subway flame retardant level |
| CN117476287B (en) * | 2023-12-26 | 2024-03-08 | 博西源线缆有限公司 | Environment-friendly high-voltage cable preparation device and high-voltage cable |
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| CN2739768Y (en) * | 2004-10-26 | 2005-11-09 | 特变电工(德阳)电缆股份有限公司 | High temperature fire-resistant environmental-protection control cable |
| CN201345245Y (en) * | 2009-01-14 | 2009-11-11 | 安徽长风电缆集团有限公司 | Anti-static control cable |
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| CN2739768Y (en) * | 2004-10-26 | 2005-11-09 | 特变电工(德阳)电缆股份有限公司 | High temperature fire-resistant environmental-protection control cable |
| CN201345245Y (en) * | 2009-01-14 | 2009-11-11 | 安徽长风电缆集团有限公司 | Anti-static control cable |
| CN201758017U (en) * | 2010-07-21 | 2011-03-09 | 安徽蒙特尔电缆集团有限公司 | Low-smoke halogen-free environment-friendly flame-retardant intrinsic safety system control cable |
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