CN103489520B - A kind of slip-off preventing pays the preparation method of copper core cable in advance - Google Patents
A kind of slip-off preventing pays the preparation method of copper core cable in advance Download PDFInfo
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- CN103489520B CN103489520B CN201310448941.7A CN201310448941A CN103489520B CN 103489520 B CN103489520 B CN 103489520B CN 201310448941 A CN201310448941 A CN 201310448941A CN 103489520 B CN103489520 B CN 103489520B
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Abstract
The invention discloses the preparation method that a kind of slip-off preventing pays copper core cable in advance, belong to field of cables, belong to the one of pre-branched cable terminal.The present invention, by the conductor thread core pressing and forming of main cable and branch cable, obtains paying copper core cable in advance after being wound around insulating tape, injection moulding, then installs the netted head that hangs and obtain finished product.Adopt the present invention, have that termination process structure is simple, safe and reliable, mounting or dismounting are convenient, lifting firmly, good seal, high temperature resistant, corrosion-resistant, fire prevention, explosion-proof feature, insulation resistance can not be reduced because of moist, the advantage of various industry and civil building can be widely used in.
Description
Technical field
The invention discloses the preparation method that a kind of slip-off preventing pays copper core cable in advance, belong to field of cables, belong to the one of pre-branched cable terminal.
Background technology
The method of current manufacture rubber pre-branched cable is outer protective sleeve, primary insulation on one section of backbone cable of first strip off select location, makes its metallic conductor exposed; Again a point branch cable is peelled off sheath, insulation, be crimped on after exposing cable end and peel off on the backbone cable metal conductor of insulation.It is shaping that described crimping carries out crimping by conductor connector, and finally shaping to this crimping joint vulcanizing press of this moulding process carries out compression molding.This method is due to needs vulcanizing press, and branch cable crimps shaping with the connection of backbone, and not only difficulty is large, and it is large to crimp shaping connection resistance, and useful life is short.And joint appearance is easily uneven, rough, reliability, consistency are poor, and the junction bonding strength of protective layer is low in addition, are difficult to use for a long time in wet environment.The method production cycle of mold pressing is long, and what simultaneously at present the rubber-covered of this moulding process of application adopted is natural/butylbenzene is the material of main body, and its insulation property, well below second third electro-insulating rubber, are difficult to the insulation property ensureing rubber pre-branched cable.
Thus in numerous cable use occasions, the joint process of backbone cable and point branch cable, just becomes the outstanding problem in the construction of supply and distribution networking.Rubber pre-branched cable is used widely in buried, middle-high building, tunnel, mine, airport, harbour and modernization Standard Factory Room, but because the problems referred to above, enables and should be subject to certain restrictions.
In order to improve joint efficiency, have also appeared a kind of pre-branched cable manufacture method closed by metal case fastening at present, the method is first connected backbone with branch cable, then do insulation processing, is fastened and be fastenedly connected afterwards to form by described metal case.Because metal case self can not contribute to bonding strength, in order to reach reliable connection, usual backbone also needs extra connector to be connected with the core of branch cable, complex structure, and bonding strength cannot ensure.In addition, the syndeton poor sealing performance of this fastening, under rugged environment, serviceability is poor.
Subsequently, occurred that the patent No. is 201010123890.7, denomination of invention is the art solutions of pre-branched cable and preparation method thereof, and the technical scheme of this patent is as follows:
A kind of pre-branched cable, comprises branch cable and the backbone of electric connection, and described branch cable and backbone connecting portion and the metallic conductor exhumed in advance when being connected are coated with separator and insulating barrier; And this pre-branched cable also comprises described branch cable to be connected formed joint and backbone and branch cable partial protection layer with backbone is injected the integral and protective layer formed of rubber packaging.Described branch cable is vertically connected on described backbone.The branch cable core of described branch cable is axially arranged in order connection along described backbone.Described joint entirety is triangular in shape.Described branch cable and the connection of backbone are the welding of the metallic conductor of corresponding core.The thickness of described separator is not less than the thickness of the master core separator of described backbone; The thickness of described insulating barrier is not less than the thickness of the master core insulating barrier of described backbone.Described separator box insulating barrier totally three layers, wherein insulating barrier forms intermediate layer, and separator is formed separately two-layer.A) precalculated position of backbone and branch cable connection end head are peeled off shaping by connection request; B) backbone and branch cable is electrically connected; It is characterized in that it is further comprising the steps of: c) colligation of the current electrical connection class of insulation is carried out to form separator and insulating barrier to the metallic conductor of exposed backbone and branch cable; And inject rubber-moulding together with partial protection layer d) described branch cable being connected formed joint and backbone and branch cable with backbone.Backbone is connected to adopt with the metallic conductor of branch cable and welds, and makes contact resistance be less than predetermined resistance.Described injection rubber-moulding is placed in a molding chamber by the partial protection layer of described joint and backbone and branch cable, adopts rubber injection machine injection to form rubber cover.Described step c) first colligation first separator, then rubber-coated insulating barrier, is wound around the second separator afterwards.Described first separator selects polyester belt.Described polyester belt selects resistance to temperature grade at the polyurethane tape of 150 DEG C.Described coated insulating barrier is second third glue is the insulating barrier of main body.Described protective layer is the rubber cover based on haloflex.Described second separator selects nonwoven fabric belts.The thickness of described second separator is 0.07 ~ 0.10mm.
Above-mentioned art solutions, although substantially solve the defect that the insulation property of pre-branched cable are bad, but because it have employed the mode of welding on joint, increase technology difficulty, and then have impact on construction and the scope of application, for field operation increases difficulty, and, this technical scheme, does not solve the problem of tune.
Summary of the invention
The invention provides a kind of applied widely, termination is easy to lifting, termination process structure is simple, safe and reliable, mounting or dismounting are convenient, clamp firmly, good seal, high temperature resistant, corrosion-resistant, fire prevention, explosion-proof feature, insulation resistance can not be reduced, cable applied widely because of moist.
For realizing above-mentioned technical purpose, technical scheme of the present invention is as follows:
Slip-off preventing pays a preparation method for copper core cable in advance, comprises main cable, at least one branch cable, and copper ring, it is characterized in that, prepares in accordance with the following steps:
A) respectively the end of the middle part of main cable and branch cable is divested insulation and sheath, make each cable core exposed, and the exposed length of each cable core is suitable, short section of the 10 ~ 15cm that grown up by the sheath skin transverse cutting that main cable divests stand-by;
B) respectively by the core of branch cable exposure and the exposed core laminating of main cable, then with copper ring by core sticking part card and, cable connecting part is put into crimp, starting pressure machine, pressing copper ring;
C) first wrapped mica tape or insulating tape in copper ring connector and exposed core position, and then lapped insulation adhesive tape, water-proof self-adhesion band, insulating tape successively;
D) by A) the sheath suitcase that obtains of step is rolled in the insulated wire cores of each main cable, and cutting knife mouth is outwardly;
E) with nylon cable tie or Halogen band, the coupling part of main cable and branch cable is evenly tightened;
F) with clean plastic film coated branch head, with packaging film, main cable and branch cable are tightly wound around, take in take-up reel together to be injected;
G) by F) the wrapped shaping branch's head part of crimping that obtains inserts injection molding machine, selects corresponding mold injection molding;
H) by G) the injection molding branch head that obtains is placed on water tank, and wrap up whole branch head with the infantees of immersion and carry out water-bath cooling, after sizing, take infantees off; The insulated wire cores termination of branch cable is separated, is wound around the insulated wire cores termination of branch cable with respective color insulating tape, then with the insulated wire cores termination of thermoplastic cap sealing branch cable;
I) by H) top ends of paying the main cable of copper core cable in advance that obtains axially opens one otch, push sheath aside, then on overlapping in the insulated wire cores of each main cable thermoplastic tube and heating make it shrink, again on the insulated wire cores termination point casing of each main cable pyrocondensation cap and heating make it shrink, obtain the cable that end seals is good;
J) a plastic cement chock is set in the middle of the insulated wire cores of each main cable, and tightly wraps with 5 layers of insulating tape.
K) recover the sheath of main cable to home position, tighten with inhibiting tape, obtaining termination is tapered cable
;
L) by K) step obtain cable end socket heat-shrink tube and heating make it shrink, then put pyrocondensation cap and heat shrink;
M) on heat-shrink tube, install guard suspension hook, the netted outside socket larynx hoop hanging head, fastening guard suspension hook, obtains slip-off preventing and pays copper core cable in advance;
N) check cable break-make, obtain slip-off preventing and pay copper core cable finished product in advance.
Copper ring of the present invention is " U " type copper ring of copper bar by obtaining after die mould.
F of the present invention) injection pressure of step is 10-20Mpa, temperature is 110-150 degree Celsius, and preheating injection time is 10-45 minute.
H of the present invention) water bath time of step is 5 ~ 15 minutes, described C) insulating tape is wound around 3 ~ 6 layers in step.
I of the present invention) incision length in step is 300 ~ 350mm.
J of the present invention) chock in step be long for 100mm, wide be 20mm, the high plastic cement cuboid for 20mm.
K of the present invention) in the rate of putting up of inhibiting tape be 50%, coiling length is 400 ± 10mm.
L of the present invention) in heat-shrink tube there is good heat-shrinkable, its length is 550 ± 10mm.
M of the present invention) larynx hoop in step is 3, respectively on fastening guard suspension hook.
The installation of netted suspension hook is as follows:
Described guard suspension hook is that one end open one end is closed, suspension hook is positioned at the outside of blind end, also comprise insulated wire cores heat-shrink tube, insulated wire cores pyrocondensation cap, described insulated wire cores heat-shrink tube is socketed in every root insulated wire cores, insulated wire cores pyrocondensation cap is arranged on the end of insulated wire cores, and the end of cable is stretched into fixing from the openend of described guard suspension hook.Also comprise insulation filling block, described collets are tapered in the chien shih cable inside end of insulated wire cores.Also comprise the insulation wearing layer be arranged between the guard inwall of guard suspension hook and cable outer wall.Described insulation wearing layer is cable core pyrocondensation cap and cable core heat-shrink tube, and cable core pyrocondensation cap is arranged on the end of cable, and cable core heat-shrink tube is socketed in the outer wall of cable.Also comprise at least one larynx hoop, described larynx hoop is fastened on outside the guard of guard suspension hook 2.Described larynx hoop 6 is 3.
Owing to present invention employs technique scheme and technique, there is following beneficial effect:
The first, because dry cable core and branch cable core all adopt copper material, clasp also uses identical copper material, greatly ensure that the electric conductivity of shaping rear cable; Further, copper ring, in " U " shape, facilitates fastening;
The second, fastened by copper ring and press shaping, two cores can being combined better, closely, efficiently avoid because junction loosens, contact resistance is excessive and the short circuit caused is burnt;
3rd, adopt plastic cement rectangular chock, make cable end tapered, allow the netted head that hangs under the effect of larynx hoop, fix firmly, prevent and hang head and come off;
4th, during branch, the sheath peeled off, for being wrapped in the insulated wire cores of each main cable, and cutting knife mouth is outwardly; Not only save cost, and, add the insulation property of cable;
5th, chock specification adopts: long for 100mm, wide be 20mm, high be 20mm, just can adapt to the inside of main cable, make, end is tapered;
6th, employing injection pressure is 10-20Mpa, and temperature is 110-150 degree Celsius, and preheating injection time is the technological parameter of 10-45 minute, not only can meet common pre-branched cable but also can meet the shaping of low smoke and zero halogen pre-branched cable branch head;
Seven, water bath time is 5 ~ 15 minutes, rapidly branch's head injection molding body ground temperature to normal temperature, can will be ensured branch's head shapes, and then ensure that the electrical insulation properties of branch's head effectively from degree more than 100;
Eight, the branch cable lifting insulated wire cores of end and cable core all have employed heat-shrinkable T bush and pyrocondensation cap packaging, effectively can ensure an electrical insulation properties for an insulated wire cores, and then ensure that the whole head that hangs has good electric insulating quality;
Nine, be incision length at the length setting of the top ends axially open of main cable being 300 ~ 350mm, can length of fit be the heat-shrinkable T bush of 550mm and netted installation of hanging head well;
figure of description
Fig. 1 is the schematic diagram that joint paid in advance by cable of the present invention;
Fig. 2 is that schematic diagram dissected by the suspension hook of cable end of the present invention;
Fig. 3 is the suspension hook schematic diagram of cable end of the present invention;
Fig. 4 is one of installation of the present invention figure.
In figure: (1) main cable core, (2) guard suspension hook, (3) collets, (4) insulated wire cores heat-shrink tube, (5) insulated wire cores pyrocondensation cap, (6) larynx hoop, (7) main cable, (8) cable core pyrocondensation cap, (9) cable core heat-shrink tube, (10) branch cable, (11) copper ring.
Embodiment
embodiment 1
Slip-off preventing pays a preparation method for copper core cable in advance, comprises main cable, at least one branch cable, and copper ring, it is characterized in that, prepares in accordance with the following steps:
A) respectively the end of the middle part of main cable and branch cable is divested insulation and sheath, make each cable core exposed, and the exposed length of each cable core is suitable, by stand-by for short section of sheath skin transverse cutting growth 10cm that main cable divests;
B) respectively by the core of branch cable exposure and the exposed core laminating of main cable, then with copper ring by core sticking part card and, cable connecting part is put into crimp, starting pressure machine, pressing copper ring;
C) first wrapped mica tape or insulating tape in copper ring connector and exposed core position, and then lapped insulation adhesive tape, water-proof self-adhesion band, insulating tape successively;
D) by A) the sheath suitcase that obtains of step is rolled in the insulated wire cores of each main cable, and cutting knife mouth is outwardly;
E) with nylon cable tie or Halogen band, the coupling part of main cable and branch cable is evenly tightened;
F) with clean plastic film coated branch head, with packaging film, main cable and branch cable are tightly wound around, take in take-up reel together to be injected;
G) by F) the wrapped shaping branch's head part of crimping that obtains inserts injection molding machine, selects corresponding mold injection molding;
H) by G) the injection molding branch head that obtains is placed on water tank, and wrap up whole branch head with the infantees of immersion and carry out water-bath cooling, after sizing, take infantees off; The insulated wire cores termination of branch cable is separated, is wound around the insulated wire cores termination of branch cable with respective color insulating tape, then with the insulated wire cores termination of thermoplastic cap sealing branch cable;
I) by H) top ends of paying the main cable of copper core cable in advance that obtains axially opens one otch, push sheath aside, then on overlapping in the insulated wire cores of each main cable thermoplastic tube and heating make it shrink, again on the insulated wire cores termination point casing of each main cable pyrocondensation cap and heating make it shrink, obtain the cable that end seals is good;
J) a plastic cement chock is set in the middle of the insulated wire cores of each main cable, and tightly wraps with 5 layers of insulating tape.
K) recover the sheath of main cable to home position, tighten with inhibiting tape, obtaining termination is tapered cable
;
L) by K) step obtain cable end socket heat-shrink tube and heating make it shrink, then put pyrocondensation cap and heat shrink;
M) on heat-shrink tube, install guard suspension hook, the netted outside socket larynx hoop hanging head, fastening guard suspension hook, obtains slip-off preventing and pays copper core cable in advance;
N) check cable break-make, obtain slip-off preventing and pay copper core cable finished product in advance.
Copper ring of the present invention is " U " type copper ring of copper bar by obtaining after die mould.
F of the present invention) injection pressure of step is 10Mpa, temperature is 110 degrees Celsius, and preheating injection time is 10 minutes.
H of the present invention) water bath time of step is 5 minutes, described C) insulating tape is wound around 3 layers in step.
I of the present invention) incision length in step is 300mm.
J of the present invention) chock in step be long for 100mm, wide be 20mm, the high plastic cement cuboid for 20mm.
K of the present invention) in the rate of putting up of inhibiting tape be 50%, coiling length is 390mm.
L of the present invention) in heat-shrink tube there is good heat-shrinkable, its length is 540mm.
M of the present invention) larynx hoop in step is 3, respectively on fastening guard suspension hook.
embodiment 2
Slip-off preventing pays a preparation method for copper core cable in advance, comprises main cable, at least one branch cable, and copper ring, it is characterized in that, prepares in accordance with the following steps:
A) respectively the end of the middle part of main cable and branch cable is divested insulation and sheath, make each cable core exposed, and the exposed length of each cable core is suitable, by stand-by for short section of sheath skin transverse cutting growth 15cm that main cable divests;
B) respectively by the core of branch cable exposure and the exposed core laminating of main cable, then with copper ring by core sticking part card and, cable connecting part is put into crimp, starting pressure machine, pressing copper ring;
C) first wrapped mica tape or insulating tape in copper ring connector and exposed core position, and then lapped insulation adhesive tape, water-proof self-adhesion band, insulating tape successively;
D) by A) the sheath suitcase that obtains of step is rolled in the insulated wire cores of each main cable, and cutting knife mouth is outwardly;
E) with nylon cable tie or Halogen band, the coupling part of main cable and branch cable is evenly tightened;
F) with clean plastic film coated branch head, with packaging film, main cable and branch cable are tightly wound around, take in take-up reel together to be injected;
G) by F) the wrapped shaping branch's head part of crimping that obtains inserts injection molding machine, selects corresponding mold injection molding;
H) by G) the injection molding branch head that obtains is placed on water tank, and wrap up whole branch head with the infantees of immersion and carry out water-bath cooling, after sizing, take infantees off; The insulated wire cores termination of branch cable is separated, is wound around the insulated wire cores termination of branch cable with respective color insulating tape, then with the insulated wire cores termination of thermoplastic cap sealing branch cable;
I) by H) top ends of paying the main cable of copper core cable in advance that obtains axially opens one otch, push sheath aside, then on overlapping in the insulated wire cores of each main cable thermoplastic tube and heating make it shrink, again on the insulated wire cores termination point casing of each main cable pyrocondensation cap and heating make it shrink, obtain the cable that end seals is good;
J) a plastic cement chock is set in the middle of the insulated wire cores of each main cable, and tightly wraps with 5 layers of insulating tape.
K) recover the sheath of main cable to home position, tighten with inhibiting tape, obtaining termination is tapered cable
;
L) by K) step obtain cable end socket heat-shrink tube and heating make it shrink, then put pyrocondensation cap and heat shrink;
M) on heat-shrink tube, install guard suspension hook, the netted outside socket larynx hoop hanging head, fastening guard suspension hook, obtains slip-off preventing and pays copper core cable in advance;
N) check cable break-make, obtain slip-off preventing and pay copper core cable finished product in advance.
Copper ring of the present invention is " U " type copper ring of copper bar by obtaining after die mould.
F of the present invention) injection pressure of step is 20Mpa, temperature is 150 degrees Celsius, and preheating injection time is 10-45 minute.
H of the present invention) water bath time of step is 15 minutes, described C) insulating tape is wound around 6 layers in step.
I of the present invention) incision length in step is 350mm.
J of the present invention) chock in step be long for 100mm, wide be 20mm, the high plastic cement cuboid for 20mm.
K of the present invention) in the rate of putting up of inhibiting tape be 50%, coiling length is 410mm.
L of the present invention) in heat-shrink tube there is good heat-shrinkable, its length is 560mm.
M of the present invention) larynx hoop in step is 3, respectively on fastening guard suspension hook.
embodiment 3
Slip-off preventing pays a preparation method for copper core cable in advance, comprises main cable, at least one branch cable, and copper ring, it is characterized in that, prepares in accordance with the following steps:
A) respectively the end of the middle part of main cable and branch cable is divested insulation and sheath, make each cable core exposed, and the exposed length of each cable core is suitable, by stand-by for short section of sheath skin transverse cutting growth 12.5cm that main cable divests;
B) respectively by the core of branch cable exposure and the exposed core laminating of main cable, then with copper ring by core sticking part card and, cable connecting part is put into crimp, starting pressure machine, pressing copper ring;
C) first wrapped mica tape or insulating tape in copper ring connector and exposed core position, and then lapped insulation adhesive tape, water-proof self-adhesion band, insulating tape successively;
D) by A) the sheath suitcase that obtains of step is rolled in the insulated wire cores of each main cable, and cutting knife mouth is outwardly;
E) with nylon cable tie or Halogen band, the coupling part of main cable and branch cable is evenly tightened;
F) with clean plastic film coated branch head, with packaging film, main cable and branch cable are tightly wound around, take in take-up reel together to be injected;
G) by F) the wrapped shaping branch's head part of crimping that obtains inserts injection molding machine, selects corresponding mold injection molding;
H) by G) the injection molding branch head that obtains is placed on water tank, and wrap up whole branch head with the infantees of immersion and carry out water-bath cooling, after sizing, take infantees off; The insulated wire cores termination of branch cable is separated, is wound around the insulated wire cores termination of branch cable with respective color insulating tape, then with the insulated wire cores termination of thermoplastic cap sealing branch cable;
I) by H) top ends of paying the main cable of copper core cable in advance that obtains axially opens one otch, push sheath aside, then on overlapping in the insulated wire cores of each main cable thermoplastic tube and heating make it shrink, again on the insulated wire cores termination point casing of each main cable pyrocondensation cap and heating make it shrink, obtain the cable that end seals is good;
J) a plastic cement chock is set in the middle of the insulated wire cores of each main cable, and tightly wraps with 5 layers of insulating tape.
K) recover the sheath of main cable to home position, tighten with inhibiting tape, obtaining termination is tapered cable
;
L) by K) step obtain cable end socket heat-shrink tube and heating make it shrink, then put pyrocondensation cap and heat shrink;
M) on heat-shrink tube, install guard suspension hook, the netted outside socket larynx hoop hanging head, fastening guard suspension hook, obtains slip-off preventing and pays copper core cable in advance;
N) check cable break-make, obtain slip-off preventing and pay copper core cable finished product in advance.
Copper ring of the present invention is " U " type copper ring of copper bar by obtaining after die mould.
F of the present invention) injection pressure of step is 15Mpa, temperature is 130 degrees Celsius, and preheating injection time is 35 minutes.
H of the present invention) water bath time of step is 10 minutes, described C) insulating tape is wound around 5 layers in step.
I of the present invention) incision length in step is 320mm.
J of the present invention) chock in step be long for 100mm, wide be 20mm, the high plastic cement cuboid for 20mm.
K of the present invention) in the rate of putting up of inhibiting tape be 50%, coiling length is 410mm.
L of the present invention) in heat-shrink tube there is good heat-shrinkable, its length is 560mm.
M of the present invention) larynx hoop in step is 3, respectively on fastening guard suspension hook.
Claims (9)
1. slip-off preventing pays a preparation method for copper core cable in advance, comprises main cable, at least one branch cable, and copper ring, it is characterized in that, prepares in accordance with the following steps:
A) respectively the end of the middle part of main cable and branch cable is divested insulation and sheath, make each cable core exposed, and the exposed length of each cable core is suitable, short section of the 10 ~ 15cm that grown up by the sheath skin transverse cutting that main cable divests stand-by;
B) respectively by the core of branch cable exposure and main cable exposed core laminating, then with copper ring by core sticking part engage, cable connecting part is put into crimp, starting pressure machine, pressing copper ring;
C) first wrapped mica tape or insulating tape in copper ring connector and exposed core position, and then lapped insulation adhesive tape, water-proof self-adhesion band, insulating tape successively;
D) by A) the sheath suitcase that obtains of step is rolled in the insulated wire cores of each main cable, and cutting knife mouth is outwardly;
E) with nylon cable tie or Halogen band, the coupling part of main cable and branch cable is evenly tightened;
F) with clean plastic film coated branch head, with packaging film, main cable and branch cable are tightly wound around, take in take-up reel together to be injected;
G) by F) the wrapped shaping branch's head part of crimping that obtains inserts injection molding machine, selects corresponding mold injection molding;
H) by G) the injection molding branch head that obtains is placed on water tank, and wrap up whole branch head with the infantees of immersion and carry out water-bath cooling, after sizing, take infantees off; Each insulated wire cores of branch cable socket is separated, is wound around insulated wire cores termination with respective color insulating tape, then uses thermoplastic cap sealed insulation core termination;
I) by H) top ends of paying the main cable of copper core cable in advance that obtains axially opens one otch, push sheath aside, then on overlapping in the insulated wire cores of each main cable thermoplastic tube and heating make it shrink, again on the insulated wire cores termination point casing of each main cable pyrocondensation cap and heating make it shrink, obtain the cable that end seals is good;
J) a plastic cement chock is set in the middle of the insulated wire cores of each main cable, and tightly wraps with 5 layers of insulating tape;
K) recover the sheath of main cable to home position, tighten with inhibiting tape, obtaining termination is tapered cable;
L) by K) step obtain cable end socket heat-shrink tube and heating make it shrink, then put pyrocondensation cap and heat shrink;
M) on heat-shrink tube, install guard suspension hook, the netted outside socket larynx hoop hanging head, fastening guard suspension hook, obtains slip-off preventing and pays copper core cable in advance;
N) check cable break-make, obtain slip-off preventing and pay copper core cable finished product in advance.
2. a kind of slip-off preventing according to claim 1 pays the preparation method of copper core cable in advance, it is characterized in that, described copper ring is " U " type copper ring of copper bar by obtaining after die mould.
3. a kind of slip-off preventing according to claim 1 and 2 pays the preparation method of copper core cable in advance, it is characterized in that, described F) injection pressure of step is 10-20Mpa, temperature is 110-150 degree Celsius, and preheating injection time is 10-45 minute.
4. a kind of slip-off preventing according to claim 3 pays the preparation method of copper core cable in advance, it is characterized in that, described H) water bath time of step is 5 ~ 15 minutes, described C) insulating tape is wound around 3 ~ 6 layers in step.
5. a kind of slip-off preventing according to claim 4 pays the preparation method of copper core cable in advance, it is characterized in that, described I) incision length in step is 300 ~ 350mm.
6. a kind of slip-off preventing according to claim 5 pays the preparation method of copper core cable in advance, it is characterized in that, described J) chock in step be long for 100mm, wide be 20mm, the high plastic cement cuboid for 20mm.
7. a kind of slip-off preventing according to claim 6 pays the preparation method of copper core cable in advance, it is characterized in that, described K) in the rate of putting up of inhibiting tape be 50%, coiling length is 400 ± 10mm.
8. a kind of slip-off preventing according to claim 7 pays the preparation method of copper core cable in advance, it is characterized in that, described L) in heat-shrink tube there is good heat-shrinkable, its length is 550 ± 10mm.
9. a kind of slip-off preventing according to claim 8 pays the preparation method of copper core cable in advance, it is characterized in that, described M) larynx hoop in step is 3, respectively on fastening guard suspension hook.
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| CN105427924A (en) * | 2015-12-23 | 2016-03-23 | 山东华凌电缆有限公司 | Long-lifetime ready-made branch cable and production method thereof |
| CN107942440B (en) * | 2018-01-02 | 2024-01-30 | 任丘市志强塑料制品有限公司 | Miniature optical fiber heat shrinkage tube and production process thereof |
| CN108010639B (en) * | 2018-01-02 | 2019-08-13 | 四川新蓉电缆有限责任公司 | A kind of flexible mineral insulation fire prevention first-born production. art of pre-branched cable branch |
| CN114300913A (en) * | 2022-01-05 | 2022-04-08 | 四川新蓉电缆有限责任公司 | Processing method of injection-molding-free pre-branch connecting body |
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