CN112309650A - Cable filling material extrusion device and filling layer extrusion method thereof - Google Patents
Cable filling material extrusion device and filling layer extrusion method thereof Download PDFInfo
- Publication number
- CN112309650A CN112309650A CN202011061273.9A CN202011061273A CN112309650A CN 112309650 A CN112309650 A CN 112309650A CN 202011061273 A CN202011061273 A CN 202011061273A CN 112309650 A CN112309650 A CN 112309650A
- Authority
- CN
- China
- Prior art keywords
- pipe
- filling material
- cable
- extrusion
- inlet
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 75
- 238000001125 extrusion Methods 0.000 title claims abstract description 72
- 238000001816 cooling Methods 0.000 claims abstract description 43
- 239000004020 conductor Substances 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims description 29
- 230000007704 transition Effects 0.000 claims description 16
- 238000007664 blowing Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 6
- 241000405070 Percophidae Species 0.000 claims description 5
- 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 claims description 4
- 239000003063 flame retardant Substances 0.000 claims description 4
- 238000005187 foaming Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims 3
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 235000009120 camo Nutrition 0.000 description 2
- 235000005607 chanvre indien Nutrition 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000011487 hemp Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/221—Sheathing; Armouring; Screening; Applying other protective layers filling-up interstices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
Abstract
The invention discloses a cable filling material extrusion device, which relates to the technical field of cable material processing equipment and comprises a cavity containing pipe, wherein a pipe wall of the cavity containing pipe is connected with a feed inlet, and the feed inlet is fixedly connected to a discharge hole of an extruder; one end of the cavity containing pipe is connected with an extrusion molding pipe and a cooling pipe in sequence, and the cavity containing pipe, the extrusion molding pipe and the cooling pipe are of an integrated structure; a cold air supply device is arranged on the cooling pipe; the other end of the containing cavity pipe is connected with a wire inlet pipe through a flange, a plurality of straight taking pipes are uniformly distributed on the wire inlet pipe, and the straight taking pipes are communicated with the containing cavity pipe. The invention also provides an extrusion method for the cable filling layer by adopting the cable filling material extrusion device. According to the device, the plurality of conductor wire cores can be effectively and integrally fixed by extrusion molding, a certain distance can be ensured to exist between every two conductor wire cores, the conductor wire cores are prevented from being tightly stacked, the heat dissipation area between the conductor wire cores is increased, and the stability of the cable conductor core is effectively improved.
Description
Technical Field
The invention belongs to the technical field of cable material processing equipment, and particularly relates to a cable filling material extrusion device and a filling layer extrusion method thereof.
Background
In the production process of the cable, conductor cores need to be protected, an insulating layer, a shielding layer and a sheath layer are generally arranged outside the cable, in order to ensure the roundness of the cable and avoid the mutual friction between the cores, a filling material needs to be added between the cores, the traditional filling method generally adopts hemp ropes, glass fibers and other high polymer materials, and a series of problems can be caused by adopting the materials, for example, the hemp ropes are used as the filling material and have poor fixation on the cable cores, the glass fiber materials are used as the filling material, the problem of the fixation of the cable cores also exists, small glass fiber dust is easily generated at the broken part of the cable, the cable is unfavorable for the body, no matter which method is adopted, a plurality of conductor cores can be stacked secretly, the heat dissipation between the conductor cores is not favorable, and the cable material with high softness, flame retardant components and foaming components is filled by an extruder, the extrusion device for the cable filling material is a good solution, but the extrusion device for the cable filling material is lacked at present, and therefore, in order to solve the problem, the extrusion device for the cable filling material and the method for extruding the filling layer are provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a cable filling material extruding device and a filling layer extruding method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
designing an extrusion device for a cable filling material, which comprises a cavity containing pipe, wherein a feed inlet is connected to the wall of the cavity containing pipe, and the feed inlet is fixedly connected to a discharge hole of an extruder;
one end of the accommodating cavity pipe is sequentially connected with an extrusion molding pipe and a cooling pipe, and the accommodating cavity pipe, the extrusion molding pipe and the cooling pipe are of an integrated structure;
a cold air supply device is arranged on the cooling pipe;
the other end of the containing cavity pipe is connected with a pipe inlet through a flange, a plurality of straight taking pipes are evenly distributed on the pipe inlet, and the straight taking pipes are communicated with the containing cavity pipe.
Compared with the prior art, the cable filling material extrusion device adopting the technical scheme has the following beneficial effects:
the device can be flexibly applied to an extruder, material filling suitable for cables with different diameters is combined in an assembling mode, a plurality of conductor wire cores can be effectively fixed through the device, integrated extrusion molding and fixing are carried out, a certain distance is ensured to exist between every two conductor wire cores, conductor wire cores are prevented from being tightly stacked, the heat dissipation area between the conductor wire cores is increased, and the stability of a cable conductor core is effectively improved.
The accommodating cavity tube is arranged, so that the filling material can be fully contacted with the conductor cell of the cable after being extruded, and the complete filling of the gap between the cable cells is facilitated.
The cooling pipe is arranged behind the extrusion molding pipe, so that the extruded filling material can be cooled at the first time, a suspended air cooling mode is adopted, the utilization rate of cooling air volume is improved, and the cooling molding of the filling material is further effectively improved.
Preferably, the pipe diameter of the extrusion molding pipe is smaller than that of the accommodating cavity pipe and the cooling pipe, a first transition slope of a conical structure is arranged at the joint of the extrusion molding pipe and the accommodating cavity pipe, and a second transition slope of the conical structure is arranged at the joint of the extrusion molding pipe and the cooling pipe. The first transition ramp is provided for a better transition of the cable filling material from the receiving chamber tube continuously into the extrusion tube, and the second transition ramp is provided for a better setup of the shower tube, so that the extruded cable filling material is suspended in the cooling tube.
Preferably, the cold air supply device comprises an air supply pipe with an annular structure, an air inlet is formed in the air supply pipe, a plurality of blowing and sprinkling pipes are arranged in the circumferential direction of the air supply pipe in an array mode, the blowing and sprinkling pipes are connected into the cooling pipe, and the air outlet end of the blowing and sprinkling pipes is located on the second transition slope. The cold air supply device can provide a 360-degree cooling air supply system for the cooling pipe, so that the extruded cable filling material is completely placed in cold air for effective air cooling.
Preferably, the outer side of the containing cavity pipe is provided with a heat preservation jacket, one side of the heat preservation jacket is provided with a heat supply inlet, and the other side of the heat preservation jacket is provided with a heat supply outlet. The arrangement of the heat-insulating jacket ensures that the filling material in the accommodating cavity tube is always in a molten state, thereby being beneficial to filling between cable conductor cores.
Preferably, a sealing gasket is arranged between the wire inlet pipe and the accommodating cavity pipe, and a one-way sealing nozzle is arranged on the sealing gasket corresponding to the position of each straight taking pipe. The sealing gasket plays the sealed effect between inlet wire pipe and the chamber pipe of holding, and one-way sealing mouth is used for wrapping up in the cable conductor sinle silk outside, avoids holding the inside filling material of chamber pipe and extrudes from inlet wire pipe department.
Preferably, the sealing gasket is a high-temperature resistant elastic piece, and the one-way sealing nozzle is of a duckbill structure. The one-way sealing nozzle of duckbill structure has good one-way sealed effect, and seal gasket's high temperature resistant degree will be greater than filling material's melting extrusion temperature far away.
The invention also provides an extrusion method for the cable filling layer by adopting the cable filling material extrusion device, which comprises the following steps:
and 4, continuously drawing out the cable with the filling material from one end of the air supply pipe, shaping the molten extrusion material through an extrusion molding pipe, and rapidly air-cooling the filling material outside the conductor wire core through a cooling pipe.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of the internal structure of the containment lumen of the present invention;
FIG. 4 is a schematic view of the assembly structure of the present invention with an extruder;
labeled as: the device comprises an accommodating cavity tube 1, a feed inlet 11, a heat preservation jacket 12, a heat supply inlet 13, a heat supply outlet 14, a first transition slope 15, a second transition slope 16, an extrusion molding tube 2, a cooling tube 3, an air supply tube 31, an air inlet 32, a blowing and sprinkling tube 33, a sealing gasket 4, a one-way sealing nozzle 41, an inlet wire tube 5 and a straight tube 51.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. These examples are intended to illustrate the invention and are not intended to limit the scope of the invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided" and "connected" are to be interpreted broadly, e.g. as a fixed connection, a detachable connection or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The structural features of the present invention will now be described in detail with reference to the accompanying drawings.
Referring to fig. 1-4, an extrusion device for cable filling materials comprises a containing cavity tube 1, wherein a feed inlet 11 is connected to the wall of the containing cavity tube 1, and the feed inlet 11 is fixedly connected to a discharge outlet of an extruder 6.
One end of the containing cavity pipe 1 is sequentially connected with an extrusion molding pipe 2 and a cooling pipe 3, and the containing cavity pipe 1, the extrusion molding pipe 2 and the cooling pipe 3 are of an integrated structure. The pipe diameter of the extrusion molding pipe 2 is smaller than that of the accommodating cavity pipe 1 and the cooling pipe 3, a first transition slope 15 with a conical structure is arranged at the joint of the extrusion molding pipe 2 and the accommodating cavity pipe 1, a second transition slope 16 with a conical structure is arranged at the joint of the extrusion molding pipe 2 and the cooling pipe 3, the first transition slope 15 is arranged to enable the cable filling material to continuously enter the extrusion molding pipe 2 from the accommodating cavity pipe 1, and the second transition slope 16 enables the extruded cable filling material to be suspended in the cooling pipe 3.
A cold air supply device is arranged on the cooling pipe 3; the cold air supply device comprises an air supply pipe 31 of an annular structure, an air inlet 32 is formed in the air supply pipe 31, a plurality of blowing and sprinkling pipes 33 are arranged in the circumferential direction of the air supply pipe 31 in an array mode, the blowing and sprinkling pipes 33 are connected into the cooling pipe 3, and the air outlet ends of the blowing and sprinkling pipes 33 are located on the second transition slope 16. The cold air supply device can provide a 360-degree cooling air supply system for the cooling pipe 3, so that the extruded cable filling material is completely placed in cold air to be effectively and quickly cooled.
The other end of the containing cavity pipe 1 is connected with a pipe inlet 5 through a flange, a plurality of straight taking pipes 51 are uniformly distributed on the pipe inlet 5, and the straight taking pipes 51 are communicated with the containing cavity pipe 1. The straight pipe 51 is used for straightening and positioning the cable conductor core.
The extruding device of the cable filling material can be flexibly applied to an extruder, and can be combined to fill the material suitable for cables with different diameters in an assembling mode, the device can effectively fix a plurality of conductor wire cores and carry out integrated extrusion molding fixation, and a certain distance is ensured to exist between every two conductor cores, the conductor cores are prevented from being tightly stacked, the heat dissipation area between the conductor cores is increased, the stability of the cable conductor core is effectively improved, the arrangement of the containing cavity tube 1 can ensure that the filling material is fully contacted with the conductor electric core of the cable after being extruded, is favorable for completely filling the gap between the electric cores of the cable, through set up the cooling tube and can carry out the very first time cooling to the filler material who extrudes at extrusion molding pipe rear, adopt unsettled air-cooled form, improve the utilization ratio of the cooling air volume, and then effectively improve filler material's cooling shaping.
Referring to fig. 1 and 4, further, an insulating jacket 12 is provided outside the accommodating cavity tube 1, and a heat supply inlet 13 is provided on one side of the insulating jacket 12, and a heat supply outlet 14 is provided on the other side.
The heat-insulating jacket 12 is arranged, so that the filling material in the accommodating cavity tube 1 can be ensured to be always in a molten state, and the filling between cable conductor cores is facilitated.
Referring to fig. 2-4, further, a sealing gasket 4 is disposed between the inlet tube 5 and the receiving tube 1, a one-way sealing nozzle 41 is disposed on the sealing gasket 4 corresponding to each of the straight tubes 51, the sealing gasket 4 is a high temperature resistant elastic member, and the one-way sealing nozzle 41 is a duckbill structure.
The sealing gasket 4 has a sealing effect between the wire inlet pipe 5 and the accommodating cavity pipe 1, and the one-way sealing nozzle 41 is used for wrapping the outer side of the cable conductor wire core to prevent the filling material in the accommodating cavity pipe 1 from being extruded from the wire inlet pipe 51. The one-way sealing nozzle 51 adopting the duckbill structure has a good one-way sealing effect, and the high temperature resistance degree of the sealing gasket 4 is far greater than the melting extrusion temperature of the filling material.
For further explanation, the invention also provides a method for extruding the cable filling layer by using the cable filling material extruding device, which comprises the following steps:
and step 4, continuously drawing out the cable with the filling material from one end of the air supply pipe 31, shaping the molten extrusion material through the extrusion molding pipe 2, and rapidly air-cooling the filling material outside the conductor wire core through the cooling pipe 3.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The cable filling material extrusion device comprises a containing cavity tube (1), and is characterized in that a feed inlet (11) is connected to the wall of the containing cavity tube (1), and the feed inlet (11) is fixedly connected to a discharge hole of an extruder (6);
one end of the accommodating cavity pipe (1) is sequentially connected with an extrusion molding pipe (2) and a cooling pipe (3), and the accommodating cavity pipe (1), the extrusion molding pipe (2) and the cooling pipe (3) are of an integrated structure;
a cold air supply device is arranged on the cooling pipe (3);
the other end of the accommodating cavity tube (1) is connected with a tube inlet (5) through a flange, a plurality of straight tubes (51) are uniformly distributed on the tube inlet (5), and the straight tubes (51) are communicated with the accommodating cavity tube (1).
2. The cable filling material extrusion device according to claim 1, wherein the diameter of the extrusion molding pipe (2) is smaller than that of the accommodating cavity pipe (1) and the cooling pipe (3), a first transition slope (15) with a conical structure is arranged at the joint of the extrusion molding pipe (2) and the accommodating cavity pipe (1), and a second transition slope (16) with a conical structure is arranged at the joint of the extrusion molding pipe (2) and the cooling pipe (3).
3. The cable filling material extrusion device according to claim 1 or 2, wherein the cold air supply device comprises an air supply pipe (31) with an annular structure, an air inlet (32) is formed in the air supply pipe (31), a plurality of spray blowing pipes (33) are arranged in an array manner in the circumferential direction of the air supply pipe (31), the spray blowing pipes (33) are connected into the cooling pipe (3), and the air outlet ends of the spray blowing pipes (33) are located on the second transition slope (16).
4. The cable filling material extrusion device according to claim 1, wherein the outside of the accommodating cavity tube (1) is provided with an insulating jacket (12), and one side of the insulating jacket (12) is provided with a heat supply inlet (13) and the other side is provided with a heat supply outlet (14).
5. An extrusion apparatus for cable filling material according to claim 1, wherein a sealing gasket (4) is provided between the inlet tube (5) and the receiving chamber tube (1), and a one-way sealing nozzle (41) is provided on the sealing gasket (4) corresponding to each of the straight tubes (51).
6. An extrusion device for cable filling material according to claim 5, wherein the sealing gasket (4) is a high temperature resistant elastic member, and the one-way sealing nozzle (41) is of duckbill structure.
7. A method for extruding a cable filling material using the cable filling material extrusion apparatus as set forth in any one of claims 1 to 6, comprising the steps of:
step 1, selecting proper extrusion molding pipes (2), wire inlet pipes (5) and matched sealing gaskets (4) according to the number and the outer diameter of conductor wire cores in a cable, fixedly mounting the wire inlet pipes (5) on a wire inlet end flange for accommodating the cavity pipe (1), connecting a wind inlet (32) to a wind outlet end of a cold wind supply fan, connecting a heat supply inlet (13) and a heat supply outlet (14) of a heat insulation jacket (12) to a hot oil circulating pump, and connecting an assembled cable filling material extrusion device to a discharge port of an extruder (6) through a feed port (11);
step 2, preheating an extruder (6) and an accommodating cavity tube (1), and setting the extrusion temperature of the cable filling material;
step 3, inserting one end of each of the conductor wire cores into the containing cavity pipe (1), then putting the cable filling material with high softness, flame-retardant components and foaming components into an extruder (6) for melt extrusion, and filling the melt extrusion material into the containing cavity pipe (1) and among the conductor wire cores to form the filling material with a steam pocket;
and 4, continuously drawing out the cable with the filling material from one end of the air supply pipe (31), shaping the molten extrusion material through the extrusion molding pipe (2), and rapidly air-cooling the filling material outside the conductor wire core through the cooling pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011061273.9A CN112309650A (en) | 2020-09-30 | 2020-09-30 | Cable filling material extrusion device and filling layer extrusion method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011061273.9A CN112309650A (en) | 2020-09-30 | 2020-09-30 | Cable filling material extrusion device and filling layer extrusion method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112309650A true CN112309650A (en) | 2021-02-02 |
Family
ID=74488508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011061273.9A Pending CN112309650A (en) | 2020-09-30 | 2020-09-30 | Cable filling material extrusion device and filling layer extrusion method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112309650A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114714590A (en) * | 2022-04-12 | 2022-07-08 | 南京航空航天大学 | Extrusion forming device and process for Nafion pipe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007112090A (en) * | 2005-10-24 | 2007-05-10 | Sekisui Chem Co Ltd | Apparatus for manufacturing resin tube |
| KR20090119657A (en) * | 2008-05-16 | 2009-11-19 | 조선대학교산학협력단 | Method for manufacturing tube using thermoplastic polyimide resin |
| US20110220388A1 (en) * | 2007-12-04 | 2011-09-15 | Barrow S.R.L. | Multipolar cable and production method thereof |
| CN106941024A (en) * | 2015-11-20 | 2017-07-11 | 莱尼电缆有限公司 | Cable and its manufacture method |
| CN210026201U (en) * | 2019-06-10 | 2020-02-07 | 安徽皖通管业制造有限公司 | Extrusion molding equipment is used in plastics tubular product production |
-
2020
- 2020-09-30 CN CN202011061273.9A patent/CN112309650A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007112090A (en) * | 2005-10-24 | 2007-05-10 | Sekisui Chem Co Ltd | Apparatus for manufacturing resin tube |
| US20110220388A1 (en) * | 2007-12-04 | 2011-09-15 | Barrow S.R.L. | Multipolar cable and production method thereof |
| KR20090119657A (en) * | 2008-05-16 | 2009-11-19 | 조선대학교산학협력단 | Method for manufacturing tube using thermoplastic polyimide resin |
| CN106941024A (en) * | 2015-11-20 | 2017-07-11 | 莱尼电缆有限公司 | Cable and its manufacture method |
| CN210026201U (en) * | 2019-06-10 | 2020-02-07 | 安徽皖通管业制造有限公司 | Extrusion molding equipment is used in plastics tubular product production |
Non-Patent Citations (2)
| Title |
|---|
| 王文忠: "橡胶制品机械", 30 April 1989, 成都科技大学出版社, pages: 47 - 48 * |
| 王春艳等: "塑料成型工艺与模具设计", 28 February 2018, 机械工业出版社, pages: 304 - 305 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114714590A (en) * | 2022-04-12 | 2022-07-08 | 南京航空航天大学 | Extrusion forming device and process for Nafion pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018155895A1 (en) | Electric vehicle charging cable | |
| CN112102985B (en) | Data transmission cable for nuclear power station with high radiation resistance and long service life | |
| CN112309650A (en) | Cable filling material extrusion device and filling layer extrusion method thereof | |
| US20210043389A1 (en) | Vascular cooled capacitor assembly and method | |
| WO2022035242A1 (en) | Heating apparatus capable of differentially heating heat-shrinkable tube | |
| WO2021189939A1 (en) | Communication optical cable for 5g network, and photoelectric composite cable and manufacturing method therefor | |
| CN210805262U (en) | High-current-carrying cable for quick charging | |
| CN219349853U (en) | Liquid cooling cable | |
| CN210486246U (en) | Gradient cooling equipment for cable extruding sheath | |
| CN106128629B (en) | A kind of photoelectric hybrid transmission thermal balance cable | |
| KR101681117B1 (en) | The inner tube and the protective tube coupling type cable protection tube method | |
| CN218241450U (en) | Cable injection molding mold | |
| CN216544646U (en) | Cable extrusion device | |
| CN216928072U (en) | High-temperature-resistant flexible cable for communication power supply suitable for intensive wiring environment in 5G base station | |
| CN214898574U (en) | Heat exchange mechanism and battery pack | |
| CN113021831B (en) | Production method of fireproof flame-retardant cable | |
| CN214736245U (en) | Melt spinning machine for composite fiber production | |
| CN218548068U (en) | Cable with separable cable cores | |
| CN216623878U (en) | Composite cable and electronic equipment with same | |
| CN117831841A (en) | Cable with internal cooling circulation and preparation method | |
| CN211045795U (en) | Network cable assembly for transmitting data at high speed | |
| CN217822133U (en) | High-performance special super-five cable for aerospace | |
| CN220383442U (en) | Heat radiation structure of electric heater junction box | |
| CN218004438U (en) | Fireproof heat-insulation cable | |
| CN220822560U (en) | High-temperature-resistant graphene bus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |