CN102347109B - Manufacture method for low-voltage electric power cable used for nuclear power station - Google Patents
Manufacture method for low-voltage electric power cable used for nuclear power station Download PDFInfo
- Publication number
- CN102347109B CN102347109B CN201110173102XA CN201110173102A CN102347109B CN 102347109 B CN102347109 B CN 102347109B CN 201110173102X A CN201110173102X A CN 201110173102XA CN 201110173102 A CN201110173102 A CN 201110173102A CN 102347109 B CN102347109 B CN 102347109B
- Authority
- CN
- China
- Prior art keywords
- manufacture method
- oversheath
- conductor
- electric power
- nuclear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000004132 cross linking Methods 0.000 claims abstract description 47
- 239000004020 conductor Substances 0.000 claims abstract description 46
- 238000012545 processing Methods 0.000 claims abstract description 31
- 239000000779 smoke Substances 0.000 claims abstract description 29
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 27
- 239000004634 thermosetting polymer Substances 0.000 claims abstract description 27
- 230000006835 compression Effects 0.000 claims abstract description 26
- 238000007906 compression Methods 0.000 claims abstract description 26
- 239000004698 Polyethylene Substances 0.000 claims abstract description 9
- 229920000573 polyethylene Polymers 0.000 claims abstract description 9
- 238000000137 annealing Methods 0.000 claims abstract description 8
- -1 polyethylene Polymers 0.000 claims abstract description 8
- 230000005855 radiation Effects 0.000 claims description 46
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 41
- 239000010949 copper Substances 0.000 claims description 41
- 229910052802 copper Inorganic materials 0.000 claims description 41
- 230000004888 barrier function Effects 0.000 claims description 40
- 238000009413 insulation Methods 0.000 claims description 40
- 238000001125 extrusion Methods 0.000 claims description 36
- 229910052736 halogen Inorganic materials 0.000 claims description 27
- 150000002367 halogens Chemical class 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 23
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 18
- 238000005491 wire drawing Methods 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 12
- 238000012360 testing method Methods 0.000 claims description 12
- 239000000498 cooling water Substances 0.000 claims description 7
- 230000011218 segmentation Effects 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 6
- 238000002955 isolation Methods 0.000 abstract 6
- 238000003754 machining Methods 0.000 abstract 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 7
- 239000003063 flame retardant Substances 0.000 description 7
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 6
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 6
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 6
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 6
- 239000000347 magnesium hydroxide Substances 0.000 description 6
- 238000010008 shearing Methods 0.000 description 6
- 238000003860 storage Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92714—Degree of crosslinking, solidification, crystallinity or homogeneity
Abstract
The invention discloses a manufacture method for a low-voltage electric power cable used for a nuclear power station, which comprises the following steps: sorting; drawing wires; annealing; twisting a conductor; lapping an isolation layer; extruding the isolation layer; carrying out irradiation crosslinking processing to the isolation layer; cabling and filling; sheathing the isolation layer; armoring; extruding an outer sheath; carrying out irradiation crosslinking processing to the outer sheath; and obtaining a finished product. The manufacture method is characterized in that the step of extruding the isolation layer adopts double-layer coextrusion, wherein an inner layer adopts a polyethylene (PE) screw, and an outer layer adopts a semi-extruded die; the step of extruding the outer sheath adopts the semi-extruded die; the screw with the compression ratio of 1.25:1-2.0:1 sheathes low-smoke halogen-free thermosetting polymer on the isolation layer subjected to irradiation crosslinking processing to form the outer sheath; and machining temperature is controlled to 105-175 DEG C. The cable manufactured with the manufacture method disclosed by the invention has the advantages of high insulativity and high fire resistance, and the use requirement of a nuclear power station cable can be satisfied.
Description
Technical field
The present invention relates to the cable technology field, exactly relate to a kind of cable, particularly a kind of nuclear power station uses the manufacture method of radioresistance lv power cable.
Background technology
Along with nuclear power station is more and more higher to the cable security requirement, the nuclear power station environment for use requires cable for nuclear power station to have high electrical performance, high flame retardant and radiation resistance.At present the insulating barrier of normal cable is single structure, when it will possess high electrical performance, to other performance of insulation particularly fire resistance will not examine; When it will possess the anti-flammability requirement, there is not extra high check requirements in the electric property that insulate yet.Common power cable is used under the radiation environment, and insulation and sheath material aging speed are very fast, have reduced to a great extent the useful life of cable, and have affected the cable safety in utilization.Cable for nuclear power station then requires cable to have high-insulativity, high flame retardant and radioresistance, and it must guarantee to possess again anti-flammability and the radioresistance that adapts under the nuclear power operational environment in the situation of high insulation resistance simultaneously.And these two kinds of performances all condition each other on commaterial, can not simultaneously good anti-flammability be arranged again in the situation of high insulation resistance, also can not in the situation of good anti-flammability, extra high insulation resistance be arranged; Although material circle personage both domestic and external has also done a large amount of investigation of materials work for this reason, but the stabilizing material that possesses simultaneously these two kinds of performances and meet nuclear power standard needs also can not put goods on the market so far, attempt with the pattern of the single structure technique of simplifying working process with the low-smoke non-halogen flame-retardant cross-linking radiation polyolefine material of present domestic optimum, but its finished product insulation resistance constant value swings between qualified and defective still, therefore, be difficult to guarantee the stability of the electrical insulation properties of product with homogenous material.
Publication number is CN 1530966, open day discloses a kind of electric wire and production method thereof for the Chinese patent literature of 2004.09.22, the electric wire of this patent documentation comprises conductor and insulating barrier, it is characterized in that: described insulating barrier is two-layer, the A insulating barrier is coated on outside the described conductor, the B insulating barrier is coated on outside the A insulating barrier, and described A insulating barrier is moisture-proof insulation layer, and described B insulating barrier is the low-smoke halogen-free flame-retardant isolating layer.The electric wire of this patent documentation is produced and is obtained by wire drawing, annealing articulation, batching, extrusion molding step, its insulation property increase, but, cable for nuclear power station then requires cable to have high-insulativity, high flame retardant and radioresistance, and it must guarantee to possess again anti-flammability and the radioresistance that adapts under the nuclear power operational environment in the situation of high insulation resistance simultaneously.Although and the cable of this patent documentation production has very high insulating properties, its fire resistance is but very low, is not suitable for nuclear power station and uses.
Summary of the invention
The present invention is intended to can not satisfy simultaneously for the cable of prior art manufacturing the defective of high-insulativity and high flame retardant, a kind of manufacture method of radiation-resistance low-voltage power cable used for nuclear is provided, adopt the produced cable of this method to have high-insulativity and high flame retardant, satisfy the instructions for use of cables of nuclear power.
In order to realize the foregoing invention purpose, the technical solution used in the present invention is:
The low-voltage electric power cable used for nuclear manufacture method, comprise selecting materials-wire drawing-annealing-conductor is stranded-separator is wrapped-insulation extrusion-insulating barrier cross-linking radiation processing-stranding filling-separator extrudes-and armouring-oversheath extrudes-oversheath cross-linking radiation processing-finished product step, it is characterized in that:
Insulation extrusion: insulation extrusion adopts double-layer coextrusion, and internal layer adopts the polyethylene screw rod, extrudes IXPE, 125-185 ℃ of processing temperatures; Outer half plsitive mold that adopts, 1.25:1 the dark equidistant screw rod of the grade of～2.0:1 compression ratio and primary insulation extrude simultaneously the low smoke and zero halogen thermosetting polymer and form insulating barrier, processing temperature is controlled at 110-170 ℃, the segmentation cooling, and cooling water temperature is controlled at 25-45 ℃;
The insulating barrier cross-linking radiation is processed: cross-linking radiation is processed on insulating barrier, and its heat extends to the lower percentage elongation of load and is controlled at 60～70%;
Oversheath is extruded: adopt half plsitive mold, the screw rod of 1.25:1～2.0:1 compression ratio extrudes the low smoke and zero halogen thermosetting polymer again and forms oversheath on the insulating barrier of processing through cross-linking radiation, and processing temperature is controlled at 105-175 ℃;
The oversheath cross-linking radiation is processed: cross-linking radiation is processed on the oversheath that forms after the process oversheath extrusion step, and its heat extends to the lower percentage elongation of load and is controlled at 60～70%.
Described annealing refers to that the annealed tin equipment of copper monofilament makes the tin-coated copper monofilament.
Described conductor twisting step refers to that the multiply tin-coated copper monofilament that forms is stranding into conductor according to 11～15 times twisting pitch of stranded conductor diameter behind wire-drawing process.
Described separator is wrapped to refer to that on the conductor of making behind the copper monofilament twisting step wrapped non-hygroscopic band forms separator equably, and wrapped Duplication is 20%, and forms cable core.
Described selecting materials refers to choose electrician's round copper rod as the raw material of cable.
Described wire drawing refers to that electrician's round copper rod is drawn into the copper monofilament through a plurality of wire-drawing dies of drawing device.
Conductor DC resistance test when described service check step refers to 20 ℃, power frequency withstand test.
Described finished product packing warehouse-in refers to putting in storage by the finished product packing that is up to the standards through checking procedure.
Described conductor is stranded to refer to adopt the wire parallel module in 0.5～30mm aperture to carry out stranded.
Wherein insulation extrusion step and oversheath extrusion step adopt the screw rod of low compression ratio, its objective is in order to satisfy the large particularity of low smoke and zero halogen thermosetting polymer CABLE MATERIALS shearing force, because containing high magnesium hydroxide and the aluminium hydroxide of filling in the low smoke and zero halogen thermosetting polymer CABLE MATERIALS, frictional force is large, in extruding process, because friction produces a large amount of heats, thus generally can not select compression ratio excessive for selecting of screw rod, and need extrusion equipment to have good cooling device.
The present invention has the following advantages:
One, insulation extrusion adopts double-layer coextrusion, internal layer adopts the polyethylene screw rod, extrude IXPE, 125-185 ℃ of processing temperatures, outer half plsitive mold that adopts, the dark equidistant screw rod of the grade of 1.25:1～2.0:1 compression ratio and primary insulation extrude simultaneously the low smoke and zero halogen thermosetting polymer and form insulating barrier, and processing temperature is controlled at 110-170 ℃, the segmentation cooling, 25-45 ℃ of cooling water temperatures; The cable that adopts this insulation extrusion mode to make has very high insulating properties.
Two, oversheath is extruded and is adopted half plsitive mold, and the screw rod of 1.25:1～2.0:1 compression ratio extrudes the low smoke and zero halogen thermosetting polymer again and forms oversheath on the insulating barrier of processing through cross-linking radiation, and processing temperature is controlled at 105-175 ℃.The cable that adopts this oversheath extrusion way to make has very high anti-flammability.
Three, adopt the screw rod of low compression ratio, can satisfy the large particularity of low smoke and zero halogen thermosetting polymer CABLE MATERIALS shearing force, because containing high magnesium hydroxide and the aluminium hydroxide of filling in the low smoke and zero halogen thermosetting polymer CABLE MATERIALS, frictional force is large, in extruding process, because friction can produce a large amount of heats.
Description of drawings
Fig. 1 is manufacturing process flow diagram of the present invention
Embodiment
Embodiment 1
The low-voltage electric power cable used for nuclear manufacture method, comprise selecting materials-wire drawing-annealing-conductor is stranded-separator is wrapped-insulation extrusion-insulating barrier cross-linking radiation processing-stranding filling-separator extrudes-armouring-oversheath extrudes-oversheath cross-linking radiation processing-finished product step;
Insulation extrusion: insulation extrusion adopts double-layer coextrusion, and internal layer adopts the polyethylene screw rod, extrudes IXPE, 125 ℃ of processing temperatures; Outer half plsitive mold that adopts, the dark equidistant screw rod of the grade of 1.25:1 compression ratio and primary insulation extrude simultaneously the low smoke and zero halogen thermosetting polymer and form insulating barrier, and processing temperature is controlled at 110 ℃, segmentation cooling, 25 ℃ of cooling water temperatures;
The insulating barrier cross-linking radiation is processed: cross-linking radiation is processed on insulating barrier, and its heat extends to the lower percentage elongation of load and is controlled at 60%;
Oversheath is extruded: adopt half plsitive mold, the screw rod of 1.25:1 compression ratio extrudes the low smoke and zero halogen thermosetting polymer again and forms oversheath on the insulating barrier of processing through cross-linking radiation, and processing temperature is controlled at 105 ℃;
The oversheath cross-linking radiation is processed: cross-linking radiation is processed on the oversheath that forms after the process oversheath extrusion step, and its heat extends to the lower percentage elongation of load and is controlled at 60%.
Described annealing refers to that the annealed tin equipment of copper monofilament makes the tin-coated copper monofilament.
Described conductor twisting step refers to that the multiply tin-coated copper monofilament that forms is stranding into conductor according to 11 times twisting pitch of stranded conductor diameter behind wire-drawing process.
Described separator is wrapped to refer to that on the conductor of making behind the copper monofilament twisting step wrapped non-hygroscopic band forms separator equably, and wrapped Duplication is 20%, and forms cable core.
Described selecting materials refers to choose electrician's round copper rod as the raw material of cable.
Described wire drawing refers to that electrician's round copper rod is drawn into the copper monofilament through a plurality of wire-drawing dies of drawing device.
Conductor DC resistance test when described service check step refers to 20 ℃, power frequency withstand test.
Described finished product packing warehouse-in refers to putting in storage by the finished product packing that is up to the standards through checking procedure.
Described conductor is stranded to refer to adopt the wire parallel module in 0.5mm aperture to carry out stranded.
Wherein insulation extrusion step and oversheath extrusion step adopt the screw rod of low compression ratio, its objective is in order to satisfy the large particularity of low smoke and zero halogen thermosetting polymer CABLE MATERIALS shearing force, because containing high magnesium hydroxide and the aluminium hydroxide of filling in the low smoke and zero halogen thermosetting polymer CABLE MATERIALS, frictional force is large, in extruding process, because friction produces a large amount of heats, thus generally can not select compression ratio excessive for selecting of screw rod, and need extrusion equipment to have good cooling device.
Embodiment 2
The low-voltage electric power cable used for nuclear manufacture method, comprise selecting materials-wire drawing-annealing-conductor is stranded-separator is wrapped-insulation extrusion-insulating barrier cross-linking radiation processing-stranding filling-separator extrudes-armouring-oversheath extrudes-oversheath cross-linking radiation processing-finished product step;
Insulation extrusion: insulation extrusion adopts double-layer coextrusion, and internal layer adopts the polyethylene screw rod, extrudes IXPE, 145 ℃ of processing temperatures; Outer half plsitive mold that adopts, the dark equidistant screw rod of the grade of 1.5:1 compression ratio and primary insulation extrude simultaneously the low smoke and zero halogen thermosetting polymer and form insulating barrier, and processing temperature is controlled at 130 ℃, segmentation cooling, 30 ℃ of cooling water temperatures;
The insulating barrier cross-linking radiation is processed: cross-linking radiation is processed on insulating barrier, and its heat extends to the lower percentage elongation of load and is controlled at 63%;
Oversheath is extruded: adopt half plsitive mold, the screw rod of 1.5:1 compression ratio extrudes the low smoke and zero halogen thermosetting polymer again and forms oversheath on the insulating barrier of processing through cross-linking radiation, and processing temperature is controlled at 125 ℃;
The oversheath cross-linking radiation is processed: cross-linking radiation is processed on the oversheath that forms after the process oversheath extrusion step, and its heat extends to the lower percentage elongation of load and is controlled at 63%.
Described annealing refers to that the annealed tin equipment of copper monofilament makes the tin-coated copper monofilament.
Described conductor twisting step refers to that the multiply tin-coated copper monofilament that forms is stranding into conductor according to 12 times twisting pitch of stranded conductor diameter behind wire-drawing process.
Described separator is wrapped to refer to that on the conductor of making behind the copper monofilament twisting step wrapped non-hygroscopic band forms separator equably, and wrapped Duplication is 20%, and forms cable core.
Described selecting materials refers to choose electrician's round copper rod as the raw material of cable.
Described wire drawing refers to that electrician's round copper rod is drawn into the copper monofilament through a plurality of wire-drawing dies of drawing device.
Conductor DC resistance test when described service check step refers to 20 ℃, power frequency withstand test.
Described finished product packing warehouse-in refers to putting in storage by the finished product packing that is up to the standards through checking procedure.
Described conductor is stranded to refer to adopt the wire parallel module in 3.5mm aperture to carry out stranded.
Wherein insulation extrusion step and oversheath extrusion step adopt the screw rod of low compression ratio, its objective is in order to satisfy the large particularity of low smoke and zero halogen thermosetting polymer CABLE MATERIALS shearing force, because containing high magnesium hydroxide and the aluminium hydroxide of filling in the low smoke and zero halogen thermosetting polymer CABLE MATERIALS, frictional force is large, in extruding process, because friction produces a large amount of heats, thus generally can not select compression ratio excessive for selecting of screw rod, and need extrusion equipment to have good cooling device.
Embodiment 3
The low-voltage electric power cable used for nuclear manufacture method, comprise selecting materials-wire drawing-annealing-conductor is stranded-separator is wrapped-insulation extrusion-insulating barrier cross-linking radiation processing-stranding filling-separator extrudes-armouring-oversheath extrudes-oversheath cross-linking radiation processing-finished product step;
Insulation extrusion: insulation extrusion adopts double-layer coextrusion, and internal layer adopts the polyethylene screw rod, extrudes IXPE, 165 ℃ of processing temperatures; Outer half plsitive mold that adopts, the dark equidistant screw rod of the grade of 1.8:1 compression ratio and primary insulation extrude simultaneously the low smoke and zero halogen thermosetting polymer and form insulating barrier, and processing temperature is controlled at 150 ℃, segmentation cooling, 35 ℃ of cooling water temperatures;
The insulating barrier cross-linking radiation is processed: cross-linking radiation is processed on insulating barrier, and its heat extends to the lower percentage elongation of load and is controlled at 68%;
Oversheath is extruded: adopt half plsitive mold, the screw rod of 1.8:1 compression ratio extrudes the low smoke and zero halogen thermosetting polymer again and forms oversheath on the insulating barrier of processing through cross-linking radiation, and processing temperature is controlled at 165 ℃;
The oversheath cross-linking radiation is processed: cross-linking radiation is processed on the oversheath that forms after the process oversheath extrusion step, and its heat extends to the lower percentage elongation of load and is controlled at 68%.
Described annealing refers to that the annealed tin equipment of copper monofilament makes the tin-coated copper monofilament.
Described conductor twisting step refers to that the multiply tin-coated copper monofilament that forms is stranding into conductor according to 13 times twisting pitch of stranded conductor diameter behind wire-drawing process.
Described separator is wrapped to refer to that on the conductor of making behind the copper monofilament twisting step wrapped non-hygroscopic band forms separator equably, and wrapped Duplication is 20%, and forms cable core.
Described selecting materials refers to choose electrician's round copper rod as the raw material of cable.
Described wire drawing refers to that electrician's round copper rod is drawn into the copper monofilament through a plurality of wire-drawing dies of drawing device.
Conductor DC resistance test when described service check step refers to 20 ℃, power frequency withstand test.
Described finished product packing warehouse-in refers to putting in storage by the finished product packing that is up to the standards through checking procedure.
Described conductor is stranded to refer to adopt the wire parallel module in 10mm aperture to carry out stranded.
Wherein insulation extrusion step and oversheath extrusion step adopt the screw rod of low compression ratio, its objective is in order to satisfy the large particularity of low smoke and zero halogen thermosetting polymer CABLE MATERIALS shearing force, because containing high magnesium hydroxide and the aluminium hydroxide of filling in the low smoke and zero halogen thermosetting polymer CABLE MATERIALS, frictional force is large, in extruding process, because friction produces a large amount of heats, thus generally can not select compression ratio excessive for selecting of screw rod, and need extrusion equipment to have good cooling device.
Embodiment 4
The low-voltage electric power cable used for nuclear manufacture method, comprise selecting materials-wire drawing-annealing-conductor is stranded-separator is wrapped-insulation extrusion-insulating barrier cross-linking radiation processing-stranding filling-separator extrudes-armouring-oversheath extrudes-oversheath cross-linking radiation processing-finished product step;
Insulation extrusion: insulation extrusion adopts double-layer coextrusion, and internal layer adopts the polyethylene screw rod, extrudes IXPE, 185 ℃ of processing temperatures; Outer half plsitive mold that adopts, the dark equidistant screw rod of the grade of 2.0:1 compression ratio and primary insulation extrude simultaneously the low smoke and zero halogen thermosetting polymer and form insulating barrier, and processing temperature is controlled at 170 ℃, segmentation cooling, 45 ℃ of cooling water temperatures;
The insulating barrier cross-linking radiation is processed: cross-linking radiation is processed on insulating barrier, and its heat extends to the lower percentage elongation of load and is controlled at 70%;
Oversheath is extruded: adopt half plsitive mold, the screw rod of 2.0:1 compression ratio extrudes the low smoke and zero halogen thermosetting polymer again and forms oversheath on the insulating barrier of processing through cross-linking radiation, and processing temperature is controlled at 175 ℃;
The oversheath cross-linking radiation is processed: cross-linking radiation is processed on the oversheath that forms after the process oversheath extrusion step, and its heat extends to the lower percentage elongation of load and is controlled at 70%.
Described annealing refers to that the annealed tin equipment of copper monofilament makes the tin-coated copper monofilament.
Described conductor twisting step refers to that the multiply tin-coated copper monofilament that forms is stranding into conductor according to 15 times twisting pitch of stranded conductor diameter behind wire-drawing process.
Described separator is wrapped to refer to that on the conductor of making behind the copper monofilament twisting step wrapped non-hygroscopic band forms separator equably, and wrapped Duplication is 20%, and forms cable core.
Described selecting materials refers to choose electrician's round copper rod as the raw material of cable.
Described wire drawing refers to that electrician's round copper rod is drawn into the copper monofilament through a plurality of wire-drawing dies of drawing device.
Conductor DC resistance test when described service check step refers to 20 ℃, power frequency withstand test.
Described finished product packing warehouse-in refers to putting in storage by the finished product packing that is up to the standards through checking procedure.
Described conductor is stranded to refer to adopt the wire parallel module in 30mm aperture to carry out stranded.
Wherein insulation extrusion step and oversheath extrusion step adopt the screw rod of low compression ratio, its objective is in order to satisfy the large particularity of low smoke and zero halogen thermosetting polymer CABLE MATERIALS shearing force, because containing high magnesium hydroxide and the aluminium hydroxide of filling in the low smoke and zero halogen thermosetting polymer CABLE MATERIALS, frictional force is large, in extruding process, because friction produces a large amount of heats, thus generally can not select compression ratio excessive for selecting of screw rod, and need extrusion equipment to have good cooling device.
The invention is not restricted to above-described embodiment, but all should fall within the claim protection range of the present invention.
Claims (9)
1. low-voltage electric power cable used for nuclear manufacture method, comprise selecting materials-wire drawing-annealing-conductor is stranded-separator is wrapped-insulation extrusion-insulating barrier cross-linking radiation processing-stranding filling-separator extrudes-and armouring-oversheath extrudes-oversheath cross-linking radiation processing-finished product step, it is characterized in that:
Insulation extrusion refers to adopt double-layer coextrusion, and internal layer adopts the polyethylene screw rod, extrudes IXPE, 125-185 ℃ of processing temperatures; Outer half plsitive mold that adopts, the dark equidistant screw rod of the grade of 1.25:1～2.0:1 compression ratio and primary insulation extrude simultaneously the low smoke and zero halogen thermosetting polymer and form insulating barrier, and processing temperature is controlled at 110-170 ℃, segmentation cooling, 25-45 ℃ of cooling water temperatures;
The insulating barrier cross-linking radiation is processed and is referred to that cross-linking radiation is processed on insulating barrier, and its heat extends to the lower percentage elongation of load and is controlled at 60～70%;
Oversheath is extruded and is referred to adopt half plsitive mold, and the screw rod of 1.25:1～2.0:1 compression ratio extrudes the low smoke and zero halogen thermosetting polymer again and forms oversheath on the insulating barrier of processing through cross-linking radiation, and processing temperature is controlled at 105-175 ℃;
The oversheath cross-linking radiation is processed and is referred to that cross-linking radiation is processed on the oversheath that forms after the process oversheath extrusion step, and its heat extends to the lower percentage elongation of load and is controlled at 60～70%.
2. described low-voltage electric power cable used for nuclear manufacture method according to claim 1 is characterized in that: described annealing refers to that the annealed tin equipment of copper monofilament makes the tin-coated copper monofilament.
3. described low-voltage electric power cable used for nuclear manufacture method according to claim 1 is characterized in that: described conductor twisting step refers to that the multiply tin-coated copper monofilament that forms is stranding into conductor according to 11～15 times twisting pitch of stranded conductor diameter after drawing step.
4. described low-voltage electric power cable used for nuclear manufacture method according to claim 1, it is characterized in that: described separator is wrapped to refer to that on the conductor of making behind the conductor twisting step wrapped non-hygroscopic band forms separator equably, wrapped Duplication is 20%, and forms cable core.
5. described low-voltage electric power cable used for nuclear manufacture method according to claim 1, it is characterized in that: described selecting materials refers to choose electrician's round copper rod as the raw material of cable.
6. described low-voltage electric power cable used for nuclear manufacture method according to claim 1, it is characterized in that: described wire drawing refers to that electrician's round copper rod is drawn into the copper monofilament through a plurality of wire-drawing dies of drawing device.
7. described low-voltage electric power cable used for nuclear manufacture method according to claim 1 is characterized in that: conductor DC resistance test when described service check step refers to 20 ℃, power frequency withstand test.
8. described low-voltage electric power cable used for nuclear manufacture method according to claim 1 is characterized in that: described finished product packing warehouse-in refer to through checking procedure by the finished product packing warehouse-in that is up to the standards.
9. described low-voltage electric power cable used for nuclear manufacture method according to claim 1, it is characterized in that: described conductor is stranded to refer to adopt the wire parallel module in 0.5～30mm aperture to carry out stranded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110173102XA CN102347109B (en) | 2011-06-24 | 2011-06-24 | Manufacture method for low-voltage electric power cable used for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110173102XA CN102347109B (en) | 2011-06-24 | 2011-06-24 | Manufacture method for low-voltage electric power cable used for nuclear power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102347109A CN102347109A (en) | 2012-02-08 |
| CN102347109B true CN102347109B (en) | 2013-04-17 |
Family
ID=45545697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110173102XA Active CN102347109B (en) | 2011-06-24 | 2011-06-24 | Manufacture method for low-voltage electric power cable used for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102347109B (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938272B (en) * | 2012-11-19 | 2015-03-25 | 四川明星电缆股份有限公司 | Production method for fire-resistant middle-high voltage cables |
| CN102938275B (en) * | 2012-11-19 | 2015-08-12 | 四川明星电缆股份有限公司 | A kind of fire-resistant medium and high voltage cable manufacture method |
| CN102938276B (en) * | 2012-11-19 | 2015-08-12 | 四川明星电缆股份有限公司 | The fire-resistant medium and high voltage cable manufacture method of a kind of safety-type |
| CN103578660B (en) * | 2013-11-05 | 2016-10-05 | 四川明星电缆股份有限公司 | The manufacture method of the generation Ⅲ nuclear power station interior lv power cable of containment |
| CN104051078A (en) * | 2014-06-27 | 2014-09-17 | 安徽顺驰电缆有限公司 | Technology for manufacturing plastic electric wire and cable |
| CN104157365B (en) * | 2014-08-26 | 2016-08-03 | 山东华凌电缆有限公司 | The passive nuclear power station of three generations environment 1E level of easing up controls cable and production method |
| CN104240810B (en) * | 2014-08-26 | 2016-08-24 | 山东华凌电缆有限公司 | The passive nuclear power station of three generations eases up the production method of environment 1E level cable |
| CN104282393A (en) * | 2014-09-19 | 2015-01-14 | 中山市鸿程科研技术服务有限公司 | Production technology of electric cable |
| CN105023636A (en) * | 2015-07-04 | 2015-11-04 | 安徽龙庵电缆集团有限公司 | Ultra-light halogen-free low-smoke flame-retardation ship cable |
| CN105034319B (en) * | 2015-07-26 | 2017-04-12 | 南通市米兰特电气有限公司 | Method for preventing cable or optical cable from being scratched |
| CN105139925A (en) * | 2015-09-23 | 2015-12-09 | 陈薇 | Fireproof type Internet of Things bus cable and preparation method thereof |
| CN105139948A (en) * | 2015-09-23 | 2015-12-09 | 陈薇 | Fireproof integrated bus of cables, optical cables and data cables and preparation method thereof |
| CN105097125A (en) * | 2015-09-23 | 2015-11-25 | 陈薇 | Field bus cable for internet of things and preparation method of field bus cable |
| CN105097124A (en) * | 2015-09-23 | 2015-11-25 | 陈薇 | Cable, optical cable and data cable integrated bus and fabrication method thereof |
| CN105741958A (en) * | 2016-04-28 | 2016-07-06 | 山东科虹线缆科技股份有限公司 | Nanographene low-voltage power cable and manufacturing method thereof |
| CN108010638A (en) * | 2017-11-30 | 2018-05-08 | 四川明星电缆股份有限公司 | A kind of low manufacture method for discharging environmentally protective fire-resisting cable of high fire-retardance |
| CN108010629A (en) * | 2017-11-30 | 2018-05-08 | 四川明星电缆股份有限公司 | A kind of low manufacture method for discharging green environmental protection cable of high fire-retardance |
| CN109494012A (en) * | 2018-11-06 | 2019-03-19 | 安徽华宇电缆集团有限公司 | A kind of explosion-proof electric power cable making method in naval vessel |
| CN111508662B (en) * | 2020-03-24 | 2022-01-07 | 南京龙蟠电线电缆有限公司 | Production process based on cross-linked extruded insulation power cable |
| CN113192706A (en) * | 2021-04-25 | 2021-07-30 | 华远高科电缆有限公司 | Double-layer co-extrusion insulation irradiation cross-linking flame-retardant long-life power cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101154480A (en) * | 2007-09-12 | 2008-04-02 | 上海亚龙工业（集团）有限公司 | 1E grade K1 kind control cable of nuclear power plant and manufacturing method thereof |
| CN101295562A (en) * | 2008-06-26 | 2008-10-29 | 四川明星电缆有限公司 | Production method of power cable for solar photovoltaic power generation assembly |
| CN101494105A (en) * | 2009-03-13 | 2009-07-29 | 安徽华能电缆集团有限公司 | Method for manufacturing special cable of wind power plant |
| CN201307467Y (en) * | 2008-12-12 | 2009-09-09 | 四川明星电缆股份有限公司 | Double layer extrusion die for nuclear power plant cables |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100764293B1 (en) * | 2006-07-06 | 2007-10-05 | 엘에스전선 주식회사 | Method of preparing cable |
-
2011
- 2011-06-24 CN CN201110173102XA patent/CN102347109B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101154480A (en) * | 2007-09-12 | 2008-04-02 | 上海亚龙工业（集团）有限公司 | 1E grade K1 kind control cable of nuclear power plant and manufacturing method thereof |
| CN101295562A (en) * | 2008-06-26 | 2008-10-29 | 四川明星电缆有限公司 | Production method of power cable for solar photovoltaic power generation assembly |
| CN201307467Y (en) * | 2008-12-12 | 2009-09-09 | 四川明星电缆股份有限公司 | Double layer extrusion die for nuclear power plant cables |
| CN101494105A (en) * | 2009-03-13 | 2009-07-29 | 安徽华能电缆集团有限公司 | Method for manufacturing special cable of wind power plant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102347109A (en) | 2012-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102347109B (en) | Manufacture method for low-voltage electric power cable used for nuclear power station | |
| CN102800422B (en) | Manufacturing method for novel aluminium alloy cable | |
| CN103578660B (en) | The manufacture method of the generation Ⅲ nuclear power station interior lv power cable of containment | |
| CN104240810A (en) | Level-1E cable for gentle environment of third-generation passive nuclear power plant and producing method thereof | |
| CN201498255U (en) | Fluorine plastic foam data bus cable | |
| CN107195367B (en) | High-voltage low-loss optical fiber composite submarine cable and preparation method thereof | |
| CN101071658A (en) | Waterproof power cable and its manufacturing method | |
| CN105390213A (en) | Cable production process | |
| CN202189578U (en) | Thin wall cable for railroad locomotive | |
| CN108417301B (en) | Medium-voltage water tree-resistant crosslinked polyethylene insulated power cable and production process thereof | |
| CN105590668A (en) | High-flexibility anti-high temperature anti-interference aviation obstruction beacon cable and production method thereof | |
| CN102347110B (en) | Method for manufacturing cable for high-temperature gas cooled reactor | |
| CN204480707U (en) | A kind of copper moulds nickel strap armouring second propylene sheath motor jump lead | |
| CN202650631U (en) | Cable for aerospace | |
| CN202584897U (en) | Anticorrosive enhanced insulated cable for aviation | |
| CN202352369U (en) | 1E-level low-smoke zero-halogen flame-retardant cable for nuclear power station | |
| CN204792117U (en) | Water -resistant tree, fire -resistant, anticorrosive, waterproof 110kV and above plastic insulation power cable | |
| CN204229865U (en) | Wind energy control cable | |
| CN103137266A (en) | Method for manufacturing power cables | |
| CN202042217U (en) | Photovoltaic cable | |
| CN202650598U (en) | Six-core weighing sensor cable | |
| CN204857212U (en) | Shielding of zinc -plating copper wire and control tension cable | |
| CN204558072U (en) | The light-duty flexible cable of a kind of low-smoke non-halogen flame-retardant | |
| CN104157365A (en) | Level-1E control cable for third-generation passive nuclear power station gentle environment and production method | |
| CN204558141U (en) | A kind of high-temperature-resistant, tensile power cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 18 Yingbin Avenue, Leshan Hi-tech Development Zone, Sichuan 614000 Patentee after: SUNWAY Co.,Ltd. Address before: No. 18 Yingbin Avenue, Leshan Hi-tech Development Zone, Sichuan 614000 Patentee before: SICHUAN MINGXING CABLE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Manufacture method for low-voltage electric power cable used for nuclear power station Effective date of registration: 20190621 Granted publication date: 20130417 Pledgee: Leshan City Commercial Bank Limited by Share Ltd. Sales Department Pledgor: SUNWAY Co.,Ltd. Registration number: 2019990000595 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210928 Granted publication date: 20130417 Pledgee: Leshan City Commercial Bank Limited by Share Ltd. Sales Department Pledgor: SUNWAY Co.,Ltd. Registration number: 2019990000595 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Manufacturing method of low voltage power cable for nuclear power station Effective date of registration: 20211018 Granted publication date: 20130417 Pledgee: Leshan City Commercial Bank Limited by Share Ltd. Sales Department Pledgor: SUNWAY Co.,Ltd. Registration number: Y2021510000246 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231106 Granted publication date: 20130417 Pledgee: Leshan City Commercial Bank Limited by Share Ltd. Sales Department Pledgor: SUNWAY Co.,Ltd. Registration number: Y2021510000246 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Manufacturing method of low-voltage power cables for nuclear power plants Effective date of registration: 20231201 Granted publication date: 20130417 Pledgee: Leshan City Commercial Bank Limited by Share Ltd. Sales Department Pledgor: SUNWAY Co.,Ltd. Registration number: Y2023980068812 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |