CN108962495B - Fireproof flexible cable production process and flexible fireproof cable produced by same - Google Patents
Fireproof flexible cable production process and flexible fireproof cable produced by same Download PDFInfo
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- CN108962495B CN108962495B CN201810773330.2A CN201810773330A CN108962495B CN 108962495 B CN108962495 B CN 108962495B CN 201810773330 A CN201810773330 A CN 201810773330A CN 108962495 B CN108962495 B CN 108962495B
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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
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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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
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Abstract
the invention discloses a power transmission line, in particular to a fireproof flexible cable production process and a fireproof flexible cable produced by the fireproof flexible cable production process. And coating the injection-molded insulating layer through coating to form a fireproof layer, and coating the outermost surface with a sheath so as to integrally mold the fireproof layer. Adopt monomer copper core, its inside is fine and close, and the copper core cross-section is the transmission of electricity cross-section of cable promptly to let the inside unnecessary space that can not appear of cable, thereby let weight and consumptive material that fall in the unit length of its transmission line all can reduce, monomer copper core because need not to carry out the secondary and strand processing, it does not have the transposition, thereby lets it be softer.
Description
Technical Field
The invention relates to a power transmission line, in particular to a fireproof flexible cable production process and a fireproof flexible cable produced by the fireproof flexible cable production process.
background
the fireproof cable is mainly used for working under high-temperature conditions and can be continuously used when a fire disaster occurs. At present, two fireproof cables exist, one of the two fireproof cables is directly provided with a layer of copper pipe sleeved outside to achieve the purpose of fire prevention, and the other fireproof cable is provided with a theater layer which adopts an inorganic mineral material as an insulating layer, has excellent insulating property and has a flame retardant effect to achieve the purpose of fire prevention.
Chinese patent No. CN2904218Y discloses a fireproof cable, which comprises an inner conductor of copper core, an insulating layer and a sheath tube, wherein the insulating layer outside the inner conductor of copper core is a ceramic magnesium oxide insulating layer, and a stainless steel sheath tube is arranged outside the insulating layer, so as to achieve the purpose of fire prevention through the sheath tube and the insulating layer. However, the fireproof cable is currently wound by a plurality of copper cores, so that the sectional area of the copper cores is increased, at the moment, the overall sectional area of the cable is larger than the sectional area of the cable for effective power transmission, and particularly when a high-power cable is produced, the diameter of the corresponding cable is also very large, so that certain trouble is caused to the use of the cable, and the improvement is needed.
disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a fireproof flexible cable production process, which is characterized in that a single copper core is used for production, so that the internal space of a conductive core is reduced, the compact power transmission line with the same specification of the cable is improved, and the integral section of the cable is reduced.
in order to achieve the purpose, the invention provides the following technical scheme:
a production process of a fireproof flexible cable comprises the following steps,
S1, unreeling, and paying off the single copper core from the copper core reel;
s2, straightening, namely straightening the single copper core; (and corresponding frosted surface process treatment is carried out;
S3, injection molding, namely coating a layer of fireproof insulating layer on the surface of the single copper core;
s4, coating, namely coating a metal layer on the surface of the fireproof insulating layer;
s5, cabling, namely coating an outer sheath on the surface of the metal layer to form the fireproof cable;
s6, winding, namely winding the fireproof cable through a winding frame.
Through above-mentioned technical scheme, adopt monomer copper core, earlier through the alignment setting, let the cable can straighten when processing man-hour, thereby let the cable can not let its the inhomogeneous condition of wall thickness appear when moulding plastics, it is less to let its frictional force that receives when the pulling equally, and simultaneously, dull polish processing is carried out to monomer copper core surface, make monomer copper core roughness increase, let its follow-up when moulding plastics, the adhesive force increases, it is better to let the insulating layer of moulding plastics and monomer copper core's combination effect, can not peel off easily. Meanwhile, the angle of the single copper core can not be changed easily when the single copper core passes through the die in the straightening process, so that the single copper core is more uniform in injection molding. And coating the injection-molded insulating layer through coating to form a fireproof layer, and coating the outermost surface with a sheath so as to integrally mold the fireproof layer. Adopt monomer copper core, its inside is fine and close, and the copper core cross-section is the transmission of electricity cross-section of cable promptly to let the inside unnecessary space that can not appear of cable, thereby let weight and consumptive material that fall in the unit length of its transmission line all can reduce, and directly adopt the monomer copper core of major diameter as electrically conductive core, it need not the transposition, does not have the node of interweaving, thereby lets its compliance better.
the invention is further configured to: in S2, adopt coalignment to carry out the alignment operation, coalignment includes the frame, install in the frame annular fixing base and with annular fixing base fixed connection' S annular mounting bracket, be provided with a plurality of movable grooves on the annular mounting bracket, the regulating block is all installed to movable groove annular distribution and activity inslot, install the alignment wheel on the regulating block, the alignment wheel extrudees with the copper core and carries out the alignment.
Through above-mentioned technical scheme, the setting of activity groove can adjust the position of alignment wheel, lets it can extrude the alignment to monomer copper core.
The invention is further configured to: be provided with the trimmer between annular fixing base and the annular mounting bracket, be provided with the spout on the annular fixing base, be provided with the steady piece in the spout, be provided with the regulating part between steady piece and the regulating block, be provided with the arc wall on the trimmer, the arc wall is by the axis position outward diffusion distribution who is close to annular fixing base, the regulating part is worn to establish in the arc wall.
Through above-mentioned technical scheme, the setting of trimmer and arc wall when it rotates, can carry out the synchronization adjustment to the adjusting block to let it can form the effect of centre gripping, reach the purpose of extrusion alignment.
The invention is further configured to: the annular fixing seat is provided with an adjusting rod in a penetrating mode, the adjusting piece is provided with adjusting teeth on the periphery, the adjusting rod is meshed with the adjusting teeth, and the adjusting rod pushes the adjusting teeth to move.
Through above-mentioned technical scheme, adopt the cooperation of adjusting the pole and adjusting the tooth, when rotating the regulation pole to let it can promote the trimmer to rotate, and then reach the purpose of adjusting the straightening wheel.
The invention is further configured to: and the outer edge of the straightening wheel is provided with a straightening groove.
Through above-mentioned technical scheme, the setting of alignment groove that interweaves can extrude with monomer copper core to let the groove can cooperate with monomer copper core, thereby during the extrusion, can carry out the cladding to the copper core, thereby extrusion effect is better.
the invention is further configured to: and cooling by a cooling device which comprises a spraying device and a cooling water tank after the step of S3, wherein the cable is cooled by the spraying device and the cooling water tank in sequence.
through above-mentioned technical scheme, atomizer forms the water smoke to lower the temperature to the space, thereby reach the purpose of primary cooling. And the cooling can be more uniform and effective in the secondary water passing through the water tank.
The invention is further configured to: the spraying device comprises a support, a spraying box arranged on the support and a spray head arranged in the spraying box, wherein a power supply cable through hole is formed in the spraying box.
through above-mentioned technical scheme, the shower nozzle can go out water smoke, can let the water smoke can not spill over through the fog spraying case to the cooling effect preferred.
The invention is further configured to: an embossing device is arranged before S6 to perform embossing treatment, the embossing device comprises embossing wheels which are arranged in pairs, and the embossing wheels press the cable to form ribs.
Through above-mentioned technical scheme, can extrude the burr with cable surface through the impressed watermark wheel to in actual use, the convenience is to its pulling.
The invention is further configured to: the embossing wheels are arranged in pairs, at least two pairs of embossing wheels are arranged, and the embossing wheels arranged in pairs are distributed in an arc line.
Through above-mentioned technical scheme, the impressed watermark wheel that becomes pitch arc and distribute can let the cable carry out certain bending to it is more convenient when the rolling.
another object of the present invention is to provide a flexible fireproof cable.
The flexible fireproof cable produced by the production process comprises the single copper core, the mica insulating layer, the copper sheath and the insulating sheath, wherein the surface of the cable is provided with a plurality of anti-skid grains.
Through above-mentioned technical scheme, adopt monomer copper core, its inside is fine and close, and the copper core cross-section is the transmission of electricity cross-section of cable promptly to let the inside unnecessary space that can not appear of cable, thereby let weight and consumptive material that fall in the unit length of its transmission line all can reduce, and the compliance of monomer copper core is owing to not having the node of interweaving, thereby let its ratio be softer.
In conclusion, the invention has the following beneficial effects:
(1) by adopting the single copper core, the interior of the single copper core is compact, and the section of the copper core is the power transmission section of the cable, so that redundant space cannot be generated in the cable, and the weight and the material consumption of the power transmission line falling in unit length can be reduced;
(2) Through adopting monomer copper core, because do not have many nodes of interweaving with the copper wire, and the node is harder to the cable that monomer copper core made is softer, and it is more convenient to use.
Drawings
FIG. 1 is an overall schematic view of embodiment 1;
FIG. 2 is a view of the alignment apparatus;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a view showing a structure of a tab;
FIG. 5 is a view showing a structure of a sanding device
FIG. 6 is a view showing the structure of an injection mold;
FIG. 7 is a view showing the structure of a cooling apparatus;
FIG. 8 is a top view of the crimping barrel;
FIG. 9 is a side view of the crimping barrel;
FIG. 10 is a view showing the structure of an embossing apparatus;
FIG. 11 is a structural view of embodiment 2.
reference numerals: 1. a frame; 2. a straightening device; 21. a straightening wheel; 211. a straightening groove; 22. an annular fixed seat; 221. a chute; 222. a counterbalance; 23. an annular mounting frame; 231. a movable groove; 232. an adjusting block; 24. an adjustment sheet; 241. an arc-shaped slot; 242. an adjustment member; 243. adjusting teeth; 25. adjusting a rod; 26. a locking lever; 27. a sanding device; 271. a storage tank; 272. inserting plates; 273. a slot; 274. grinding a sand hole; 275. a flash chamber; 276. a sanding cavity; 277. an opening; 278. a material box; 31. an upper guide wheel; 32. a lower guide wheel; 4. injection molding a mold; 41. a lead-in sleeve; 42. injection molding a sleeve; 43. an injection molding space; 51. a spray box; 52. a spray head; 53. a water tank; 54. a notch; 55. a water-absorbing soft cushion; 61. a crimping barrel; 611. an opening section; 612. a mouth-closing section; 613. a forming section; 62. welding a gun; 7. mounting a plate; 71. an embossing wheel; 81. a monolithic copper core; 82. a mica insulating layer; 83. a copper sheath; 84. an outer sheath.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Example 1
a production process of a fireproof flexible cable comprises the following steps,
S1, unreeling, namely, paying off the single copper core 81 from the copper core reel; slowly paying off the single copper core 81 from the copper core reel through an unreeling machine;
S2, straightening, namely straightening the single copper core 81 and performing frosting treatment on the single copper core 81; the surface of the single copper core 81 can be rougher through the sanding process while being straightened, and meanwhile, the single copper core can be straightened in the sanding process, so that the straightening degree of the single copper core can be further improved;
s3, injection molding, namely coating a layer of fireproof insulating layer on the surface of the single copper core 81; the insulating material is processed through an injection molding machine, then an injection mold is installed, and the insulating layer is coated on the single copper core;
S4, coating, namely coating a metal layer on the surface of the fireproof insulating layer; the strip copper sheets are directly and longitudinally curled, and finally the butt joint positions of the strip copper sheets are welded, so that a copper pipe is formed and serves as a metal layer, and the copper pipe can play a fireproof role;
S5, cabling, namely coating an outer sheath 84 on the surface of the metal layer to form the fireproof cable; the same as the injection molding step of S3, the insulating material is injected to the surface of the metal layer by an injection molding machine to adhere the insulating material, so that the metal layer can be protected and insulated;
s6, winding, namely winding the fireproof cable through a winding frame.
Wherein, when straightening, be provided with aligning device 2 and carry out the alignment operation. The straightening device 2 comprises a frame 1 and a plurality of straightening wheels 21 arranged on the frame 1, and the single copper core 81 is straightened through the straightening wheels 21. In order to adjust the straightening wheel 21 conveniently, the annular fixing seat 22 is installed on the machine frame 1, the annular fixing seat 22 is provided with a plurality of sliding grooves 221, the sliding grooves 221 are formed in the periphery from the center of the annular fixing seat 22, the annular fixing seat 22 is provided with the annular mounting frame 23, the annular mounting frame 23 is provided with a movable groove 231 corresponding to the sliding grooves 221, an adjusting block 232 is installed in the movable groove 231, the straightening wheel 21 is installed on the adjusting block 232, and the straightening wheel 21 moves through the adjusting block 232. The adjusting block 232 includes a balance block 222 and a sliding block, an adjusting element 242 is disposed between the balance block 222 and the sliding block, the balance block 222 is installed in the sliding groove 221, the sliding block is installed in the movable groove 231, and the straightening wheel 21 is installed on the sliding block. An adjusting sheet 24 is arranged between the annular fixed seat 22 and the annular mounting frame 23, an arc-shaped groove 241 is formed in the adjusting sheet 24, the forming direction of the arc-shaped groove 241 is arranged in a direction which is close to the middle position of the adjusting sheet 24 and spreads outwards, and then the adjusting piece 242 is arranged in the arc-shaped groove 241 in a penetrating mode. When the adjusting piece 24 is rotated, the adjusting piece 242 slides under the action of the arc-shaped slot 241, so as to drive the adjusting block 232 to slide in the movable slot 231, thereby achieving the purpose of adjustment.
In order to facilitate the rotation of the adjustment plate 24, an adjustment rod 25 is disposed on the annular fixing seat 22 in a penetrating manner, the diameter of the adjustment rod 25 is perpendicular to the central axis of the adjustment plate 24, an adjustment tooth 243 is disposed on the adjustment plate 24, and the adjustment rod 25 is a screw rod, so that the thread of the police is matched with the adjustment tooth 243, and the adjustment plate 24 can rotate when the adjustment rod 25 is rotated, thereby achieving the purpose of adjustment. After adjusting, in order to fix, directly wear to establish check lock lever 26 on annular fixing base 22 or annular mounting bracket 23, directly let check lock lever 26 and annular fixing base 22 or annular mounting bracket 23 threaded connection, than the last year with trimmer 24 butt to reach the purpose of locking. To facilitate alignment of the unitary copper core 81, alignment grooves 211 are provided on the outer edge of the alignment wheel 21. Generally, two straightening devices 2 may be provided in the whole process, and the sanding process is performed between the two straightening devices 2.
When the dull polish is handled, in order to make things convenient for the dull polish, as shown in fig. 5, be provided with dull polish device 27, dull polish device 27 is including depositing case 271, and place in and deposit picture peg 272 in the case 271, it is provided with slot 273 to deposit in the case 271, picture peg 272 is inserted in slot 273, will deposit case 271 and cut apart into dull polish chamber 276 and flash chamber 275, dull polish hole 274 has been seted up on picture peg 272, the aperture of dull polish hole 274 is greater than the diameter of monomer copper core 81, can let the dull polish can follow the clearance between monomer copper core 81 and the dull polish hole 274 and stereotyped and spill over, let the dull polish that spills over collect in flash chamber 275. Alternatively, the plates 272 may be arranged in pairs, where the space between the plates 272 is a sanding chamber 276, the flash chambers 275 are located on both sides of the sanding chamber 276, the bottom of the flash chambers 275 are provided with openings 277, and a bin 278 may be provided for collection. When sanding, the sanding material (in this embodiment, the sanding material may be hard fine particles such as gravel and diamond) is stacked higher than the sanding hole 274. In addition, the sanding process can be replaced by a sand blasting process.
And after straightening, performing injection molding on the mechanical energy insulating layer on the surface of the monomer copper core 81 by using an injection molding machine. An injection mold 4 for injection molding of the surface of the single copper core 81 is mounted on the injection molding machine. The injection mold 4 includes a guide sleeve 41 and an injection sleeve 42, an injection space 43 for melting the insulating material is present between the injection sleeve 42 and the guide sleeve 41, and the insulating material is coated on the single copper core 81 through the injection space 43. The guiding assembly is arranged before entering the injection molding sleeve 42 and comprises an upper guiding wheel 31 and a lower guiding wheel 32, and the single copper core 81 penetrates through the upper guiding wheel 31 and the lower guiding wheel 32, so that the single copper core 81 entering the injection molding sleeve 42 is stable, and the injection molded surface skin is uniform.
after injection molding, the skin needs to be cooled. However, the copper core is relatively large, so that direct cooling by water is difficult. Therefore, in order to solve the above-mentioned technical problems, after the injection molding, a spraying device is provided to cool in advance, and then the cable is passed through the water tank 53, and the notch 54 of the water tank 53 is blocked by the water absorbing cushion 55, so that the water flow rate is reduced, and the pressure on the cable can be reduced. The spraying device comprises a support, a spraying box 51 mounted on the support and a spray head 52 arranged in the spraying box 51, wherein the spraying box 51 is provided with a through hole, a cable directly penetrates through the through hole, and cooling water mist is sprayed out through the spray head 52 to cool the cable.
after the cable is cooled, the cable needs to be coated, and a layer of copper foil is mainly arranged on the surface of the cable. The wrapping process is completed through wrapping welding equipment, in the process of wrapping the copper strip, the copper strip needs to be curled firstly to form a copper sheet pipeline, and finally welding is performed at the position of a joint of the copper strip pipeline, so that the whole wrapping process is completed. The wrapping and welding device comprises a copper strip unwinding device, a crimping barrel 61 and a welding gun 62, wherein the crimping barrel 61 comprises an opening section 611, a closing section 612 and a forming section 613 which are integrally arranged, the opening section 611 is in contact with a copper strip, the end of the opening section is as wide as the copper strip, when the closing section 612 is closed, two edges of the opening section are bent upwards to form a closing structure, and the width of the closing is gradually reduced from the opening section 611 to the forming section 613. And finally, the diameter of the curling barrel 61 of the forming section 613 is unchanged, a gap is reserved at the top end of the curling barrel, a welding gun is matched with the gap, and the copper strip is welded through the gap to finish copper sheet cladding.
Finally, a cabling process is needed, the copper sheet-coated cable is subjected to injection molding again, the injection mold 4 is the same, a guide device is also arranged for guiding before injection molding, and meanwhile, the copper sheet layer can be shaped and cooled after treatment.
After the cooling, in order to make things convenient for rolling and pulling, the cable surface sets up wavy or heliciform, and at this moment, is provided with embossing apparatus before the rolling and carries out the impressed watermark processing, embossing apparatus include mounting panel 7 and set up the embossing wheel 71 on mounting panel 7 in pairs, and embossing wheel 71 edge is provided with the recess, is provided with the sand grip in the recess, carries out the impressed watermark through the sand grip. The mounting plate 7 is provided with an adjusting groove, a movable block is arranged in the adjusting groove, a rotating shaft is arranged on a sliding block, one embossing wheel 71 is arranged on the rotating shaft, and the other embossing wheel 71 is driven by a motor to rotate actively, so that the cable is extruded and pulled. At least two pairs of embossing wheels 71 are provided to emboss different angles, respectively, thereby forming complete lines. When the embossing is carried out, the plurality of groups of embossing wheels 71 are arranged into an arc line structure, so that the cable can be bent, and the cable is convenient to wind.
Example 2
The flexible fireproof cable produced by the production process in the embodiment 1 comprises a large-diameter single copper core 81, a mica insulating layer 82, a copper sheath 83 and an insulating sheath, wherein the surface of the cable is provided with a plurality of anti-skid grains, and the anti-skid grains can be in a spiral structure or an annular structure.
the above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (9)
1. A production process of a fireproof flexible cable is characterized by comprising the following steps,
S1, unreeling, namely, paying off the single copper core (81) from the copper core reel;
S2, straightening, namely straightening the single copper core (81), and performing frosted surface process treatment on the surface of the single copper core (81);
S3, injection molding, namely coating a layer of inorganic fireproof insulating layer on the surface of the single copper core (81);
S4, coating, namely coating a metal layer on the surface of the fireproof insulating layer;
s5, cabling, namely coating an outer sheath (84) on the surface of the metal layer to form the fireproof cable;
s6, winding, namely winding the fireproof cable through a winding frame;
In S2, a straightening device (2) is adopted for straightening operation, the straightening device (2) comprises a rack (1), an annular fixed seat (22) and an annular mounting rack (23) fixedly connected with the annular fixed seat (22) are mounted on the rack (1), a plurality of movable grooves (231) are formed in the annular mounting rack (23), the movable grooves (231) are distributed annularly, adjusting blocks (232) are mounted in the movable grooves (231), straightening wheels (21) are mounted on the adjusting blocks (232), and the straightening wheels (21) and a copper core are extruded to be straightened; be provided with trimmer (24) between annular fixing base (22) and annular mounting bracket (23), be provided with arc wall (241) on trimmer (24), arc wall (241) are by the axis position outward diffusion distribution who is close to annular fixing base (22), be provided with regulating part (242) on regulating block (232), regulating part (242) are worn to establish in arc wall (241).
2. the production process of the fireproof flexible cable according to claim 1, wherein a sliding groove (221) is formed in the annular fixing seat (22), a balance block (222) is arranged in the sliding groove (221), and the adjusting piece (242) is arranged between the balance block (222) and the adjusting block (232).
3. The production process of the fireproof flexible cable according to claim 1, wherein an adjusting rod (25) penetrates through the annular fixed seat (22), adjusting teeth (243) are arranged on the adjusting plate (24) along the periphery, the adjusting rod (25) is meshed with the adjusting teeth (243), and the adjusting rod (25) pushes the adjusting teeth (243) to move.
4. A process for the production of a fire-resistant flexible cable according to claim 1, wherein the straightening wheels (21) are provided on their outer edge with straightening grooves (211).
5. The process for producing a fireproof flexible cable according to claim 1, wherein a cooling device is provided for cooling after the step of S3, the cooling device comprises a spraying device and a cooling water tank (53), and the cable is cooled by the spraying device and the cooling water tank (53) in sequence.
6. the production process of the fireproof flexible cable according to claim 5, wherein the spraying device comprises a bracket, a spraying box (51) mounted on the bracket, and a spraying head (52) arranged in the spraying box (51), and the spraying box (51) is provided with a cable through hole.
7. The process of claim 1, wherein an embossing device is provided to emboss the cable before S6, the embossing device comprises a pair of embossing wheels (71), and the embossing wheels (71) press the cable to form the embosses.
8. Process for the production of a fire-resistant flexible cable according to claim 7, characterized in that said embossing wheels (71) are arranged in pairs, and at least two pairs are provided, said embossing wheels (71) arranged in pairs being distributed in an arc.
9. A flexible fireproof cable produced by the production process according to any one of claims 1 to 8, wherein the cable comprises a single copper core (81), a mica insulation layer (82), a copper sheath (83) and an insulation sheath, and the surface of the cable is provided with a plurality of anti-skid grains.
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| CN201810773330.2A CN108962495B (en) | 2018-07-14 | 2018-07-14 | Fireproof flexible cable production process and flexible fireproof cable produced by same |
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| CN201810773330.2A CN108962495B (en) | 2018-07-14 | 2018-07-14 | Fireproof flexible cable production process and flexible fireproof cable produced by same |
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| CN110047629B (en) * | 2019-05-06 | 2020-08-14 | 安徽维尔特仪表线缆有限公司 | Cable straightening and stranding equipment |
| CN110230939B (en) * | 2019-05-24 | 2024-05-03 | 中国航天空气动力技术研究院 | Modularized spray type heat dissipation heat sink device |
| CN110444338B (en) * | 2019-07-09 | 2020-11-20 | 东莞市智钢五金电子有限公司 | Data line weaving and printing production line |
| CN110890179A (en) * | 2019-11-07 | 2020-03-17 | 江苏华能电缆股份有限公司 | Load-bearing detection cable straightening production process |
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| CN1490823A (en) * | 2002-10-16 | 2004-04-21 | 江苏上上电缆集团有限公司 | Isolated copper wire cable with copper armoured under 3KV voltage rating and manufacture thereof |
| CN101814342A (en) * | 2010-04-16 | 2010-08-25 | 张家港市永金电缆有限公司 | High-capacity copper-clad steel composite optical cable for fusion of three nets and production method thereof |
| CN102024525B (en) * | 2010-11-16 | 2012-06-13 | 宁波振亚电工机械厂 | Film sintering machine |
| CN202584768U (en) * | 2012-03-28 | 2012-12-05 | 安徽太平洋电缆集团有限公司 | Single-core fireproof control cable |
| CN102855987A (en) * | 2012-09-21 | 2013-01-02 | 江苏宝安电缆有限公司 | High-performance inorganic-mineral insulating flexible fireproof cable with metal sheath |
| CN104517689B (en) * | 2013-09-30 | 2016-07-06 | 江苏河阳线缆有限公司 | A kind of preparation method of coaxial cable |
| CN105139946A (en) * | 2015-08-20 | 2015-12-09 | 安徽怡和电缆有限公司 | Mineral insulated ultra-soft fireproof cable |
| CN105390191B (en) * | 2015-12-22 | 2017-09-12 | 上海朗达电缆（集团）有限公司 | A kind of aluminium alloy flexible fire-proof cable and its manufacture craft |
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