CN105390202A - 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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- CN105390202A CN105390202A CN201510927133.8A CN201510927133A CN105390202A CN 105390202 A CN105390202 A CN 105390202A CN 201510927133 A CN201510927133 A CN 201510927133A CN 105390202 A CN105390202 A CN 105390202A
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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
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- Extrusion Moulding Of Plastics Or The Like (AREA)
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 relates to field of cable technology, particularly relates to control cubicle inner cable and manufacture method thereof.
Background technology
Generally all contain halogen in the interior cable material of existing control cubicle, 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, in the process of burning, produce the pernicious gases such as HCL and a large amount of smog, healthy, the etching apparatus of harm personnel.And the cable adopting low smoke and zero halogen material in case of fire, do not produce the pernicious gases such as HCL, the smog discharged during burning is little, reduces the harm to personnel and the corrosion to equipment.Adopt the cable of high flame resistance, reduce the rate of fire travel, for personnel escape under fire condition provides the valuable time.So use the low smoke and zero halogen control cubicle inner cable with high flame resistance to be trend of the times.
Summary of the invention:
The technical program proposes a kind of low smoke and zero halogen control cubicle inner cable of high flame resistance, and its material all adopts halogen-free low-smoke flame retardant material, fire resistance can reach IEC60332 ?3 ?23 (category-B) flame-retardancy requirements.
In order to solve low smoke and zero halogen problem, and make this construction of cable meet the technical program such as other electricity, mechanical performance to propose a kind of control cubicle inner cable, its structure is: conductor outer wrapping insulating barrier forms core, the many stranded formation cable cores of core, cable core is enclosed with lapping layer, lapping layer outward more wrapped metal tape as screen; Screen is outward restrictive coating; Described insulating barrier adopts low-smoke halide-free fireproof composite polyolefine material (the optional trade mark is the cable insulating material of FPW505) to extrude formation; Described lapping layer adopts polyester belt, and the rate of putting up is not less than 15%; Described screen 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 be HW461 ?the cable jacket material of 9A).
Described conductor adopts many stranded modes, and stranded lay ratio is not more than 20.The lay ratio of the many stranded formation cable cores of core is not more than 30.Restrictive coating THICKNESS CONTROL scope is 1.4mm ~ 1.6mm.
Above-mentioned cable encounters problem in actual production: owing to adopting new structure, adopt traditional processing technology, or empirically etc. on traditional processing technology, carry out revising the cable all cannot produced and reach theoretical performance, even cannot produce the cable meeting custom requirements.For this reason, the present invention proposes a kind of new manufacture method, is exclusively used in this cable, specific as follows:
For this reason, the technical program proposes a kind of manufacture method targetedly newly, and step comprises:
1) manufacture conductor: according to the requirement of conductor wire diameter, adopt that many soft round copper monofilament are stranded to be made;
Described metal monofilament from-inner-to-outer is divided into multilayer; Adjacent two metal monofilament in every layer of metal monofilament fit tightly mutually; 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, and the direction of lay of adjacent two layers metal monofilament is contrary;
The stranded lay ratio of conductor is not more than 20;
2) core is manufactured: employing extrudes mode and Insulation Material is wrapped in outside conductor, then carries out sectioned water cooling cooling to core;
Extrude: be certainly fed to discharging direction, the fuselage warm area of plastic extruding machine is 120 ~ 140 DEG C, a district, 140 ~ 160 DEG C, 2nd district, 150 ~ 170 DEG C, 3rd district, 160 ~ 180 DEG C, 4th district, head temperature scope 160 ~ 180 DEG C; Wherein, a district is pan feeding section, and 2nd district and 3rd district are fluxing zone, and 4th district are homogenizing zone.
Time insulating exruded, the degree of eccentricity is not more than 20%;
Cooling: from plastic extruding machine discharging opening to cooling end, be divided into following cooled region:
The temperature range of the cooling water in one district is 40 ~ 50 DEG C, the temperature range of the cooling water in 2nd district is normal temperature;
According to the linear velocity of core in production process, the length in controlled cooling model pond and volume, the temperature of the core after cooling is terminated is consistent with the water temperature of corresponding cooling water;
After cooling is complete, drying process is carried out;
Adopt this technique, crude, the unequal defective workmanship of core surface of insulating layer can be reduced.
3) cable core is manufactured: many cores are stranded makes cable core, and stranding lay ratio is not more than 30 times; Again at the outer wrapped polyester belt of cable core, the rate of putting up is not less than 15%;
Described core from-inner-to-outer is divided into multilayer; Adjacent two cores in every layer line core fit tightly mutually; In adjacent two layers 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 is contrary with the direction of lay of outermost layer core;
4) screen is wrapped up: at the outer wrapped metal mask tape of polyester belt; The metal mask tape rate of putting up is not less than 25%; The lapping direction of metal mask tape is contrary with the lapping direction of polyester belt;
5) extrude sheath: employing extrudes mode and restrictive coating is wrapped in outside cable core, form cable; Sheath extrudes employing squash type, and the type of cooling adopts sectioned water cooling cooling;
Extrude: be certainly fed to discharging direction, the fuselage warm area of rubber extruding machine is 115 ~ 125 DEG C, a district, 125 ~ 135 DEG C, 2nd district, 145 ~ 155 DEG C, 3rd district, 160 ~ 170 DEG C, 4th district, 165 ~ 175 DEG C, 5th district, head temperature scope 165 ~ 175 DEG C; Wherein, a district is pan feeding section, and 2nd district and 3rd district are fluxing zone, and four He Wu districts of district are homogenizing zone.
Cooling: from plastic extruding machine discharging opening to cooling end, be divided into following cooled region:
The temperature range of the cooling water in one district is 40 ~ 60 DEG C, the temperature range of the cooling water in 2nd district is normal temperature; According to the linear velocity of core in production process, the length in controlled cooling model pond and volume, the temperature of the core after cooling is terminated is consistent with the water temperature of corresponding cooling water;
After cooling is complete, drying process is carried out.Adopt this technique, crude, the section that can reduce jacket surface have the defective workmanships such as pore.
Described step 2) and step 5) in drying process be all adopt compressed air dry up.
As preferably 1:
Described step 2) in
Extrude: 120 DEG C, a district, 140 DEG C, 2nd district, 150 DEG C, 3rd district, 160 DEG C, 4th district, head 160 DEG C;
Cooling: the temperature range of the cooling water in a district is [48,50 DEG C], the temperature range of the cooling water in 2nd district is production scene room temperature;
Described step 5) in
Extrude: 115 DEG C, a district, 135 DEG C, 2nd district, 145 DEG C, 3rd district, 160 DEG C, 4th district, 175 DEG C, 5th district, head 175 DEG C;
Cooling: the temperature range of the cooling water in a district is [50,60 DEG C], the temperature range of the cooling water in 2nd district is room temperature.
As preferably 2:
Described step 2) in
Extrude: 130 DEG C, a district, 150 DEG C, 2nd district, 160 DEG C, 3rd district, 170 DEG C, 4th district, head 170 DEG C;
Cooling: the temperature range of the cooling water in a district is (43,48 DEG C), the temperature range of the cooling water in 2nd district is room temperature;
Described step 5) in
Extrude: 120 DEG C, a district, 130 DEG C, 2nd district, 150 DEG C, 3rd district, 4th district, 5th district and head are 170 DEG C;
Cooling: the temperature range of the cooling water in a district is [40,43 DEG C], the temperature range of the cooling water in 2nd district is room temperature.
As preferably 3:
Described step 2) in
Extrude: 140 DEG C, a district, 160 DEG C, 2nd district, 170 DEG C, 3rd district, 180 DEG C, 4th district, head 180 DEG C;
Cooling: the temperature range of the cooling water in a district is [40,43 DEG C], the temperature range of the cooling water in 2nd district is room temperature;
Described step 5) in
Extrude: a district and 2nd district are 125 DEG C, 155 DEG C, 3rd district, 4th district, 5th district and head be 165 DEG C;
Cooling: the temperature range of the cooling water in a district is (43,50 DEG C), the temperature range of the cooling water in 2nd district is room temperature.
Adopt this method, can realize the designing requirement of cable completely, the first-time qualification rate of this method manufacture cable reaches and is greater than 98.7%, and obtained cable performance can arrive completely or exceed examination criteria.Wherein, the first-time qualification rate of the cable that preferred version 1 is obtained 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, conductor adopts many stranded modes.Insulating material adopts low-smoke non-halogen flame-retardant crosslinked polyolefin materials, and insulation is closely extruded on conductor.The many stranded formation cable cores of insulated wire cores, the outer wrapped metal tape of cable core is as screen, and sheath adopts high flame resistance sheath material.Insulation adopts low-smoke non-halogen flame-retardant cross-linked polyolefin, makes core have fire resistance, thus improves whole cable fire resistance.Sheath adopts high flame resistance, low smoke Halogen protective cover material, ensures that cable has high flame resistance.Cable insulation and sheath material all adopt halogen-free low-smoke flame retardant material, in combustion, without the generation of the pernicious gases such as HCL, reduce the burst size of smog during burning, reduce the rate of fire travel simultaneously.Reduce the harm to personnel and the corrosion to equipment.The control cubicle inner cable that the technical program proposes possesses low smoke and zero halogen and high flame resistance simultaneously, is applicable in electrical control cabinet.
Accompanying drawing explanation
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, 5, sheath.
Fig. 2 is the production technological process of the cable of the present embodiment.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment is as shown in Figure 1 as follows:
A kind of control cubicle inner cable, its structure is: conductor outer wrapping insulating barrier forms core, the many stranded formation cable cores of core, and cable core is enclosed with lapping layer, lapping layer outward more wrapped metal tape as screen; Screen is outward restrictive coating; Described insulating barrier adopts low-smoke halide-free fireproof composite polyolefine material (the optional trade mark is the cable insulating material of FPW505) to extrude formation; Described lapping layer adopts polyester belt, and the rate of putting up is not less than 15%; Described screen adopts 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 be HW461 ?the cable jacket material of 9A).Described conductor adopts many stranded modes, and stranded lay ratio is not more than 20.Restrictive coating THICKNESS CONTROL scope is 1.4mm ~ 1.6mm.
Described conductor adopts many stranded modes, and stranded lay ratio is not more than 20.The lay ratio of the many stranded formation cable cores of core is not more than 30.Restrictive coating THICKNESS CONTROL scope is 1.4mm ~ 1.6mm.
1-conductor: 2 classes stranded by soft round copper wire or 5 class conductors.
2-insulation: insulation adopts low-smoke non-halogen flame-retardant crosslinked polyolefin materials to extrude and forms.
3-lapping layer: lapping layer adopts polyester belt.
4-shielding: shielding adopts metal tape (copper strips) wrapped shielding.
5-sheath: sheath adopts high flame resistance, low smoke halogen-free material to extrude and forms.
Conductor adopts that many soft round copper wires are stranded to be made, the outside extruded insulation layer of conductor.Each insulated wire cores is twisted into cable core, the outer wrapped lapping layer of cable core.Each insulated wire cores is tightly strapped in together by lapping layer, has carried out stable process to cable core.Adopt metallic tape shield outward at lapping layer, be used for shielding external interference signals.Extrude sheath outside metallic tape shield, sheath adopts high flame resistance, low smoke halogen-free material, guarantees the high flame resistance of cable.
The cable of the present embodiment, its manufacture method, as Fig. 2, comprises step:
1) manufacture conductor: according to the requirement of conductor wire diameter, adopt many soft round copper wires (as: 19, single diameter 0.193mm; Or 7, single diameter is 0.23mm) strandedly to make; The stranded lay ratio of conductor is not more than 20 times.
2) manufacture core: employing extrudes mode and insulating barrier is wrapped in outside conductor, form core; Extrusion way adopts squash type, ensures insulation compactness.The core type of cooling adopts sub-sectional cooling.
3) cable core is manufactured: many cores are stranded makes cable core, and stranding lay ratio is not more than 30 times; At the outer wrapped polyester belt of cable core, the rate of putting up is not less than 15%.
4) screen is wrapped up: at the outer wrapped metal mask tape of cable core; The metal tape rate of putting up is not less than 25%.
5) sheath is extruded: the cable core employing after shielding extrudes mode and restrictive coating is wrapped in outside cable core, forms cable; Sheath extrudes employing squash type, and the type of cooling adopts sub-sectional cooling.
Concrete technological requirement is:
1) manufacture conductor: according to the requirement of conductor wire diameter, adopt that many soft round copper monofilament are stranded to be made;
Described metal monofilament from-inner-to-outer is divided into multilayer; Adjacent two metal monofilament in every layer of metal monofilament fit tightly mutually; 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, and the direction of lay of adjacent two layers metal monofilament is contrary;
The stranded lay ratio of conductor is not more than 20;
2) core is manufactured: employing extrudes mode and Insulation Material is wrapped in outside conductor, then carries out sectioned water cooling cooling to core;
Extrude: be certainly fed to discharging direction, the fuselage warm area of plastic extruding machine is 120 ~ 140 DEG C, a district, 140 ~ 160 DEG C, 2nd district, 150 ~ 170 DEG C, 3rd district, 160 ~ 180 DEG C, 4th district; Wherein, a district is pan feeding section, and 2nd district and 3rd district are fluxing zone, and 4th district are homogenizing zone; Head temperature scope 160 ~ 180 DEG C.
Time insulating exruded, the degree of eccentricity is not more than 20%;
Cooling: from plastic extruding machine discharging opening to cooling end, be divided into following cooled region:
The temperature range of the cooling water in one district is 40 ~ 50 DEG C, the temperature range of the cooling water in 2nd district is normal temperature;
According to the linear velocity of core in production process, the length in controlled cooling model pond and volume, the temperature of the core after cooling is terminated is consistent with the water temperature of corresponding cooling water;
After cooling is complete, drying process is carried out;
Adopt this technique, crude, the unequal defective workmanship of core surface of insulating layer can be reduced.
3) cable core is manufactured: many cores are stranded makes cable core, and stranding lay ratio is not more than 30 times; Again at the outer wrapped polyester belt of cable core, the rate of putting up is not less than 15%;
Described core from-inner-to-outer is divided into multilayer; Adjacent two cores in every layer line core fit tightly mutually; In adjacent two layers 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 is contrary with the direction of lay of outermost layer core;
4) screen is wrapped up: at the outer wrapped metal mask tape of polyester belt; The metal mask tape rate of putting up is not less than 25%; The lapping direction of metal mask tape is contrary with the lapping direction of polyester belt;
5) extrude sheath: employing extrudes mode and restrictive coating is wrapped in outside cable core, form cable; Sheath extrudes employing squash type, and the type of cooling adopts sectioned water cooling cooling;
Extrude: be certainly fed to discharging direction, the fuselage warm area of rubber extruding machine is 115 ~ 125 DEG C, a district, 125 ~ 135 DEG C, 2nd district, 145 ~ 155 DEG C, 3rd district, 160 ~ 170 DEG C, 4th district, 165 ~ 175 DEG C, 5th district; Wherein, a district is pan feeding section, and 2nd district and 3rd district are fluxing zone, and four He Wu districts of district are homogenizing zone; Head temperature scope 165 ~ 175 DEG C.
Cooling: from plastic extruding machine discharging opening to cooling end, be divided into following cooled region:
The temperature range of the cooling water in one district is 40 ~ 60 DEG C, the temperature range of the cooling water in 2nd district is normal temperature;
According to the linear velocity of core in production process, the length in controlled cooling model pond and volume, the temperature of the core after cooling is terminated is consistent with the water temperature of corresponding cooling water;
After cooling is complete, drying process is carried out.Adopt this technique, crude, the section that can reduce jacket surface have the defective workmanships such as pore.
Described step 2) and step 5) in drying process be all adopt compressed air dry up.
Example 1:
Described step 2) in
Extrude: 120 DEG C, a district, 140 DEG C, 2nd district, 150 DEG C, 3rd district, 160 DEG C, 4th district;
Cooling: the temperature range of the cooling water in a district is [48,50 DEG C], the temperature range of the cooling water in 2nd district is production scene room temperature;
Described step 5) in
Extrude: 115 DEG C, a district, 135 DEG C, 2nd district, 145 DEG C, 3rd district, 160 DEG C, 4th district, 175 DEG C, 5th district;
Cooling: the temperature range of the cooling water in a district is [50,60 DEG C], the temperature range of the cooling water in 2nd district is production scene.
Example 2:
Described step 2) in
Extrude: 130 DEG C, a district, 150 DEG C, 2nd district, 160 DEG C, 3rd district, 170 DEG C, 4th district;
Cooling: the temperature range of the cooling water in a district is (43,48 DEG C), the temperature range of the cooling water in 2nd district is room temperature;
Described step 5) in
Extrude: 120 DEG C, a district, 130 DEG C, 2nd district, 150 DEG C, 3rd district, four He Wu districts of district are 170 DEG C;
Cooling: the temperature range of the cooling water in a district is [40,43 DEG C], the temperature range of the cooling water in 2nd district is room temperature.
Example 3:
Described step 2) in
Extrude: 140 DEG C, a district, 160 DEG C, 2nd district, 170 DEG C, 3rd district, 180 DEG C, 4th district;
Cooling: the temperature range of the cooling water in a district is [40,43 DEG C], the temperature range of the cooling water in 2nd district is room temperature;
Described step 5) in
Extrude: a district and 2nd district are 125 DEG C, 155 DEG C, 3rd district, four He Wu districts of district are 165 DEG C;
Cooling: the temperature range of the cooling water in a district is (43,50 DEG C), the temperature range of the cooling water in 2nd district is room temperature.
The use of this cable: cable laying is in electrical control cabinet.
Through verification experimental verification, the performance of this cable is as follows:
Cable-flame retardant performance: cable can by IEC60332 ?3 ?23 (category-B) flame-retardancy requirements.
Electrical property:
1,20 DEG C of conductor DC resistances meet IEC60228 or GB/T3956 regulation.
2, AC voltage withstand test: apply 1.0kV alternating voltage, continues 5min, and process of the test insulation does not puncture.
Mechanical performance:
1, mechanical performance before ageing of insulation: tensile strength >=9.0Mpa, elongation at break >=125%.
2, mechanical performance (135 ± 3 DEG C, 7d) after ageing of insulation: tensile strength and elongation at break rate of change≤± 25%.
3, the aging front mechanical performance of sheath: tensile strength >=9.0Mpa, elongation at break >=125%.
4, the aging rear mechanical performance of sheath (100 ± 3 DEG C, 7d): tensile strength and elongation at break rate of change≤± 40%.
5, insulate heat extends: 200 ± 3 DEG C, 10min, 20N/cm
2under condition; Under load, maximum elongation rate is not more than 175%, and permanent elongation is not more than 15%.
Fire resistance:
What 1, core and cable GB/T18380 specified passes through single vertical burning test.
2, the category-B bunched burning test that specified by GB/T18380 of cable.
Claims (9)
1. a control cubicle inner cable, is characterized in that structure is: conductor outer wrapping insulating barrier form core, the many stranded formation cable cores of core, cable core is enclosed with lapping layer, lapping layer outward more wrapped metal tape as screen; Screen outer wrapping restrictive coating;
Described insulating barrier adopts low-smoke halide-free fireproof composite polyolefine material to extrude formation;
Described lapping layer adopts polyester belt, and the rate of putting up is not less than 15%;
Described screen adopts metal mask tape, 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.
2. control cubicle inner cable according to claim 1, it is characterized in that described conductor adopts many stranded modes, stranded lay ratio is not more than 20.
3. control cubicle inner cable according to claim 1, is characterized in that the lay ratio of the many stranded formation cable cores of core is not more than 30.
4. the control cubicle inner cable of high flame resistance according to claim 1, is characterized in that restrictive coating THICKNESS CONTROL scope is 1.4mm ~ 1.6mm.
5. a manufacture method for the arbitrary described cable of Claims 1 to 4, is characterized in that step comprises:
1) manufacture conductor: according to the requirement of conductor wire diameter, adopt that many soft round copper monofilament are stranded to be made;
Described metal monofilament from-inner-to-outer is divided into multilayer; Adjacent two metal monofilament in every layer of metal monofilament fit tightly mutually; 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, and the direction of lay of adjacent two layers metal monofilament is contrary;
The stranded lay ratio of conductor is not more than 20;
2) core is manufactured: employing extrudes mode and Insulation Material is wrapped in outside conductor, then carries out sectioned water cooling cooling to core;
Extrude: be certainly fed to discharging direction, the fuselage warm area of plastic extruding machine is 120 ~ 140 DEG C, a district, 140 ~ 160 DEG C, 2nd district, 150 ~ 170 DEG C, 3rd district, 160 ~ 180 DEG C, 4th district, head temperature scope 160 ~ 180 DEG C; Wherein, a district is pan feeding section, and 2nd district and 3rd district are fluxing zone, and 4th district are homogenizing zone.
Time insulating exruded, the degree of eccentricity is not more than 20%;
Cooling: from plastic extruding machine discharging opening to cooling end, be divided into following cooled region:
The temperature range of the cooling water in one district is 40 ~ 50 DEG C, the temperature range of the cooling water in 2nd district is normal temperature;
After cooling is complete, drying process is carried out;
3) cable core is manufactured: many cores are stranded makes cable core, and stranding lay ratio is not more than 30 times; Again at the outer wrapped polyester belt of cable core, the rate of putting up is not less than 15%;
Described core from-inner-to-outer is divided into multilayer; Adjacent two cores in every layer line core fit tightly mutually; In adjacent two layers 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 is contrary with the direction of lay of outermost layer core;
4) screen is wrapped up: at the outer wrapped metal mask tape of polyester belt; The metal mask tape rate of putting up is not less than 25%; The lapping direction of metal mask tape is contrary with the lapping direction of polyester belt;
5) extrude sheath: employing extrudes mode and restrictive coating is wrapped in outside cable core, form cable; Sheath extrudes employing squash type, and the type of cooling adopts sectioned water cooling cooling;
Extrude: be certainly fed to discharging direction, the fuselage warm area of rubber extruding machine is 115 ~ 125 DEG C, a district, 125 ~ 135 DEG C, 2nd district, 145 ~ 155 DEG C, 3rd district, 160 ~ 170 DEG C, 4th district, 165 ~ 175 DEG C, 5th district, head temperature scope 165 ~ 175 DEG C; Wherein, a district is pan feeding section, and 2nd district and 3rd district are fluxing zone, and four He Wu districts of district are homogenizing zone.
Cooling: from plastic extruding machine discharging opening to cooling end, be divided into following cooled region:
The temperature range of the cooling water in one district is 40 ~ 60 DEG C, the temperature range normal temperature of the cooling water in 2nd district
According to the linear velocity of core in production process, the length in controlled cooling model pond and volume, the temperature of the core after cooling is terminated is consistent with the water temperature of corresponding cooling water;
After cooling is complete, drying process is carried out.
6. the manufacture method of cable according to claim 5, is characterized in that described step 2) and step 5) in drying process be all adopt compressed air dry up.
7. the manufacture method of cable according to claim 5, is characterized in that
Described step 2) in
Extrude: 120 DEG C, a district, 140 DEG C, 2nd district, 150 DEG C, 3rd district, 160 DEG C, 4th district, head 160 DEG C;
Cooling: the temperature range of the cooling water in a district is [48,50 DEG C], the temperature range of the cooling water in 2nd district is production scene room temperature;
Described step 5) in
Extrude: 115 DEG C, a district, 135 DEG C, 2nd district, 145 DEG C, 3rd district, 160 DEG C, 4th district, 175 DEG C, 5th district, head 175 DEG C;
Cooling: the temperature range of the cooling water in a district is [50,60 DEG C], the temperature range of the cooling water in 2nd district is room temperature.
8. the manufacture method of cable according to claim 5, is characterized in that
Described step 2) in
Extrude: 130 DEG C, a district, 150 DEG C, 2nd district, 160 DEG C, 3rd district, 170 DEG C, 4th district, head 170 DEG C;
Cooling: the temperature range of the cooling water in a district is (43,48 DEG C), the temperature range of the cooling water in 2nd district is room temperature;
Described step 5) in
Extrude: 120 DEG C, a district, 130 DEG C, 2nd district, 150 DEG C, 3rd district, 4th district, 5th district and head are 170 DEG C;
Cooling: the temperature range of the cooling water in a district is [40,43 DEG C], the temperature range of the cooling water in 2nd district is room temperature.
9. the manufacture method of cable according to claim 5, is characterized in that
Described step 2) in
Extrude: 140 DEG C, a district, 160 DEG C, 2nd district, 170 DEG C, 3rd district, 180 DEG C, 4th district, head 180 DEG C;
Cooling: the temperature range of the cooling water in a district is [40,43 DEG C], the temperature range of the cooling water in 2nd district is room temperature;
Described step 5) in
Extrude: a district and 2nd district are 125 DEG C, 155 DEG C, 3rd district, 4th district, 5th district and head be 165 DEG C;
Cooling: the temperature range of the cooling water in a district is (43,50 DEG C), the temperature range of the cooling water in 2nd district is room temperature.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510927133.8A CN105390202B (en) | 2015-12-14 | 2015-12-14 | Cable in control cabinet and manufacturing method of cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510927133.8A CN105390202B (en) | 2015-12-14 | 2015-12-14 | Cable in control cabinet and manufacturing method of cable |
Publications (2)
Publication Number | Publication Date |
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CN105390202A true CN105390202A (en) | 2016-03-09 |
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Cited By (7)
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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 |
CN109065262A (en) * | 2018-07-27 | 2018-12-21 | 重庆永富电线电缆有限公司 | The manufacturing process of copper core PVC-insulated 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 |
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 |
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 |
CN114005610A (en) * | 2021-10-25 | 2022-02-01 | 江苏上上电缆集团有限公司 | Manufacturing method of control cable applicable to subway flame-retardant grade |
CN117476287A (en) * | 2023-12-26 | 2024-01-30 | 博西源线缆有限公司 | Environment-friendly high-voltage cable preparation method and high-voltage cable |
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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 |
CN109065262A (en) * | 2018-07-27 | 2018-12-21 | 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 |
CN114005610A (en) * | 2021-10-25 | 2022-02-01 | 江苏上上电缆集团有限公司 | Manufacturing method of control cable applicable to subway flame-retardant grade |
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 |
CN117476287A (en) * | 2023-12-26 | 2024-01-30 | 博西源线缆有限公司 | Environment-friendly high-voltage cable preparation method and high-voltage cable |
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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