CN113838617A - Polyvinyl chloride insulation fire-resistant cable and preparation process thereof - Google Patents
Polyvinyl chloride insulation fire-resistant cable and preparation process thereof Download PDFInfo
- Publication number
- CN113838617A CN113838617A CN202111172035.XA CN202111172035A CN113838617A CN 113838617 A CN113838617 A CN 113838617A CN 202111172035 A CN202111172035 A CN 202111172035A CN 113838617 A CN113838617 A CN 113838617A
- Authority
- CN
- China
- Prior art keywords
- polyvinyl chloride
- preparation process
- resistant cable
- fire
- cable
- 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.)
- Withdrawn
Links
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/184—Sheaths comprising grooves, ribs or other projections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention relates to the technical field of cable production, in particular to a polyvinyl chloride insulating fire-resistant cable and a preparation process thereof; s1: mixing polyvinyl chloride, an antioxidant and a flame retardant together and heating to a molten state to obtain a raw material; s2: sleeving a mould on the cable, and injecting the raw materials into the mould; s3: cooling and demolding to obtain the polyvinyl chloride insulating fire-resistant cable; the cable is also provided with a plurality of clamping pieces, and the side surfaces of the clamping pieces are of circular arc structures; a plurality of clamping pieces are all provided with flat blocks, and the upper ends of the flat blocks are planes; the friction force between the polyvinyl chloride insulation fire-resistant cable and an operator can be improved.
Description
Technical Field
The invention relates to the technical field of cable production, in particular to a polyvinyl chloride insulating fire-resistant cable and a preparation process thereof.
Background
The cable is an electric energy or signal transmission device and generally consists of a plurality of wires or groups of wires; and in the middle of the reality have a lot of cables to be erect in the middle of the high altitude, and operating personnel need carry out regular inspection and maintenance to the cable, and operating personnel need step on and hold the cable and remove in the high altitude, but current cable is cylindric structure and surface smoothness, and operating personnel holds or very easily appears skidding and the danger that drops because of smooth surface when stepping on for probably operating personnel.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the polyvinyl chloride insulating fire-resistant cable and the preparation process thereof, which can improve the friction force between the polyvinyl chloride insulating fire-resistant cable and operators.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the preparation process of the polyvinyl chloride insulating fire-resistant cable comprises the following steps:
s1: mixing polyvinyl chloride, an antioxidant and a flame retardant together and heating to a molten state to obtain a raw material;
s2: sleeving a mould on the cable, and injecting the raw materials into the mould;
s3: and cooling and demolding to obtain the polyvinyl chloride insulating fire-resistant cable.
Further polyvinyl chloride insulation fire resisting cable includes cable and bead, and the circumference equipartition has a plurality of beads on the cable.
Furthermore, a plurality of clamping pieces are further arranged on the cable, and the side surfaces of the clamping pieces are of arc-shaped structures.
Further, a plurality of the clamping pieces are provided with flat blocks, and the upper ends of the flat blocks are planes.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a process flow diagram of a process for preparing a fire-resistant polyvinyl chloride insulated cable according to the present invention;
FIG. 2 is a schematic structural diagram of a fire-resistant cable of the present invention;
FIG. 3 is a schematic structural view of another direction of the fire-resistant PVC insulated cable according to the present invention;
FIG. 4 is a schematic view of the forming section of the present invention;
FIG. 5 is a schematic view of the structure of the mold of the present invention;
FIG. 6 is a schematic view of the structure of two forming sections of the present invention;
FIG. 7 is a schematic structural view of a power unit according to the present invention;
FIG. 8 is a schematic view of a blade according to the present invention;
FIG. 9 is a schematic view of the construction of a nozzle according to the present invention;
fig. 10 is a schematic structural view of a polyvinyl chloride insulated fire-resistant cable manufacturing apparatus according to the present invention.
Detailed Description
Referring to fig. 1, an exemplary operation of the process for preparing a fire-resistant cable with polyvinyl chloride insulation according to the present invention is: firstly, mixing polyvinyl chloride, an antioxidant and a flame retardant together and heating to a molten state to obtain a raw material; then sheathing the mould on the cable, and injecting the raw materials into the mould; secondly, cooling, and finally demoulding to obtain the polyvinyl chloride insulating fire-resistant cable; and the antioxidant adopts dibutylhydroxytoluene, the flame retardant adopts dichlorobromomethane, the oxidation resistance of the polyvinyl chloride is enhanced by adding the dibutylhydroxytoluene in the polyvinyl chloride, and the dichlorobromomethane can enhance the flame retardance of the polyvinyl chloride, so that the oxidation speed of the obtained polyvinyl chloride insulating fire-resistant cable can be reduced in the air, and spontaneous combustion of the polyvinyl chloride insulating fire-resistant cable caused by direct sunlight or light reflected by other objects can be avoided.
Referring to fig. 2 and 3, an exemplary operation process for enhancing friction between the fire-resistant cable and the palm of the hand according to the pvc insulation shown in the drawings is as follows:
the surfaces of the existing polyvinyl chloride insulating fire-resistant cables erected in the high altitude are smooth curved surfaces, and when an operator walks on the polyvinyl chloride insulating fire-resistant cables due to the work maintenance requirement, the operator needs to hold one polyvinyl chloride insulating fire-resistant cable by hand and step on one polyvinyl chloride insulating fire-resistant cable by feet to move, so that the polyvinyl chloride insulating fire-resistant cable comprises a cable 01 and convex edges 02, a plurality of convex edges 02 are uniformly distributed on the cable 01 in the circumferential direction, the friction between the polyvinyl chloride insulating fire-resistant cable and a palm can be enhanced by the aid of the convex edges 02, the operator can hold the polyvinyl chloride insulating fire-resistant cable more firmly, the friction between shoes and the polyvinyl chloride insulating fire-resistant cable, which are stepped on the polyvinyl chloride insulating fire-resistant cable by the operator, can be increased, and a better supporting effect can be provided for the operator, avoid operating personnel to skid the emergence danger under the foot.
Referring to fig. 2 and 3, an exemplary operation that may be further facilitated by the hand grasping shown in the figures is:
further for the convenience of operating personnel holds insulating fire resisting cable of polyvinyl chloride, so still be provided with a plurality of clamping pieces 03 on the cable 01, the side of clamping piece 03 is convex structure, operating personnel alright with the finger card of difference between every two adjacent clamping pieces 03 to the convex structure that utilizes clamping piece 03 side comes the finger parcel to live, can make operating personnel's finger by stable card on insulating fire resisting cable of polyvinyl chloride, can utilize further offering operating personnel of the clamp force between the finger to borrow the power and remove and stabilize self.
Referring to fig. 2 and 3, an exemplary process from which further ease of stepping can be obtained is shown:
the existing polyvinyl chloride insulating fire-resistant cables are all cylindrical, the surfaces of the existing polyvinyl chloride insulating fire-resistant cables are smooth curved surfaces, when an operator steps on the cable, the cable is smooth, the contact area of feet and the polyvinyl chloride insulating fire-resistant cables is small, and the feet of the operator feel pain after a long time, so that flat blocks 04 are arranged on a plurality of clamping pieces 03, the upper ends of the flat blocks 04 are planes, when the operator steps on the polyvinyl chloride insulating fire-resistant cables, the operator actually steps on the flat blocks 04, the contact area of the feet and the polyvinyl chloride insulating fire-resistant cables is increased by using the flat blocks 04, the pressure between the feet and the polyvinyl chloride insulating fire-resistant cables is reduced, the feet of the operator are prevented from being painful, and meanwhile, the flat blocks 04 can be used for enabling the operator to stably stand on the polyvinyl chloride insulating fire-resistant cables, the condition that the foot is stepped on empty due to the fact that slipping easily occurs on the smooth surface of the traditional polyvinyl chloride insulation fire-resistant cable is avoided, and the safety of operators is further protected.
Referring to fig. 4, an exemplary process for preparing the rib 02, clip 03 and flat 04 is shown:
because the preparation process of the polyvinyl chloride insulating fire-resistant cable also relates to a preparation device of the polyvinyl chloride insulating fire-resistant cable, the device comprises two forming parts and a power part, the forming parts comprise a mold 10, a feed inlet 13 and exhaust holes 14, an inner cavity 11 is arranged in the mold 10, the mold 10 is provided with the feed inlet 13 and the exhaust holes 14, the feed inlet 13 and the exhaust holes 14 are both communicated with the inner cavity 11, when in use, firstly, a cable 01 passes through the two forming parts, then the two forming parts are attached together, so that the two molds 10 are attached together, simultaneously, the two inner cavities 11 form a complete forming cavity, the cable 01 is positioned in the forming cavity, then, the raw material is added into the forming cavity through a funnel-shaped opening formed by the two feed inlets 13, the raw material is wrapped on the cable 01, and the air in the forming cavity can be exhausted through the exhaust holes 14, the molding cavity is ensured to be filled with raw materials, and the convex edge 02, the clamping piece 03 and the block 04 are finally obtained.
Referring to fig. 4 and 5, one exemplary process by which a sealed molding cavity may be obtained is as follows:
the forming part of the invention also comprises a hole sealing 12 and a sealing plate 15, one end of the mould 10 is provided with the hole sealing 12, the sealing plate 15 is connected with the mould 10 through a bolt 16, the sealing plate 15 slides on the mould 10, so after the cable 01 passes through the two forming parts, two bolts 16 are used for driving the two sealing plates 15 to seal one end of the forming cavity, the two hole sealing 12 can seal the other end of the forming cavity along with the movement when the two moulds 10 are jointed, thereby sealing the forming cavity, then a convex edge 02, a clamping piece 03 and a flat block 04 can be prepared on the cable 01, after cooling, the two forming parts are opened, the cable 01 moves towards the direction of the sealing plate 15, but the formed section of the convex edge 02, the clamping piece 03 and the flat block 04 is not completely moved out of the forming cavity, then the two forming parts are jointed, and one end of the forming cavity with the sealing plate 15 is sealed by the side part of the formed section of the convex edge 02, the clamping piece 03 and the flat block 04, the closure plate 15 is not required to close off the cable 01 and the remainder of the cable 01 is subsequently cast on to enable the rib 02, clip 03 and block 04 at one end to be formed and the rib 02, clip 03 and block 04 at the other end to be formed to be connected.
Referring to fig. 7 and 10, one exemplary operation that can be achieved to automatically conform two forming sections is as follows:
because the power part comprises an underframe 20, a screw rod 21 and two sliding blocks 22, the two sliding blocks 22 are respectively in threaded connection with two sides of the screw rod 21, the screw rod 21 rotates on the underframe 20, the thread directions of two sides of the screw rod 21 are opposite, and the two dies 10 are respectively and fixedly connected with the two sliding blocks 22; so when using, only need use gear motor to drive lead screw 21 forward rotation, alright in order to make lead screw 21 drive two sliders 22 and slide and be close to on chassis 20 to realize that two sliders 22 drive two shaping portions and carry out automatic laminating, gear motor drives lead screw 21 antiport, then realizes that two shaping portions open the effect of automatic drawing of patterns, replaces artifical realization automation.
Referring to fig. 7 and 9, an exemplary procedure for supporting the movement of the pvc insulated fire-resistant cable according to the present invention is as follows:
the power part further comprises rotating rollers 23 and cross beams 24, the two rotating rollers 23 rotate at two ends of the bottom frame 20 respectively, the cross beams 24 are arranged at two ends of the bottom frame 20, the two dies 10 can slide on the two cross beams 24, and the polyvinyl chloride insulating fire-resistant cable is required to move when the polyvinyl chloride insulating fire-resistant cable is prepared, so that the two rotating rollers 23 are used for supporting, an external power source can be used for driving the two rotating rollers 23 to rotate in the same direction, and the two rotating rollers 23 can move by utilizing friction force to enable the polyvinyl chloride insulating fire-resistant cable to move.
Referring to FIG. 5, one exemplary operation that may be achieved to reduce cooling time is shown in the figure:
be provided with a plurality of fin 17 on the outer wall of mould 10, make the holistic area of mould 10 outer wall more big than the area of traditional mould outer wall contact air under the influence of a plurality of fin 17 to can make more air contact on the outer wall of mould 10, thereby accelerate the radiating rate of mould 10 outer wall, reduce the cool time, accelerate the preparation speed of polyvinyl chloride insulation fire resisting cable.
Referring to fig. 8 and 9, one exemplary process according to which repairs may be made is shown:
because of the existence of the plurality of exhaust holes 14, after the raw material is poured and cooled, the feeling of an operator during use is affected due to the existence of the cooled raw material forming bulges in the plurality of exhaust holes 14, the power part further comprises a blade 31, the blade 31 is fixedly connected to the bottom frame 20 through a bracket 30, when the polyvinyl chloride insulation fire-resistant cable moves out, the plurality of bulges can sequentially touch the blade 31, the bulges are cut off by the blade 31, the upper end of the flat block 04 is ensured to be a plane, and the blade 31 is in an inclined state relative to the blade 31, the cut bulges can be guided aside, and the bulges are prevented from falling into the clamping pieces 03.
Referring to fig. 9 and 10, one exemplary process that may be obtained to facilitate casting of the feedstock is as follows:
the power part further comprises a pouring nozzle 41, the pouring nozzle 41 is fixedly connected to the bottom frame 20 through the gantry 40, after raw materials are manufactured, the two molding parts are attached, at the moment, the two feeding ports 13 can comprise the pouring nozzle 41, and then the raw materials are guided into the pouring nozzle 41 through a pipeline, so that the raw materials smoothly enter the molding cavity.
Claims (10)
1. The preparation process of the polyvinyl chloride insulated fire-resistant cable is characterized by comprising the following steps:
s1: mixing polyvinyl chloride, an antioxidant and a flame retardant together and heating to a molten state to obtain a raw material;
s2: sleeving a mould on the cable, and injecting the raw materials into the mould;
s3: and cooling and demolding to obtain the polyvinyl chloride insulating fire-resistant cable.
2. The preparation process of the polyvinyl chloride insulated fire-resistant cable according to claim 1, wherein the preparation process comprises the following steps: and the antioxidant in the S1 is dibutyl hydroxy toluene.
3. The preparation process of the polyvinyl chloride insulated fire-resistant cable according to claim 1, wherein the preparation process comprises the following steps: the flame retardant in S1 is dichlorobromomethane.
4. The preparation process of the polyvinyl chloride insulated fire-resistant cable according to claim 1, wherein the preparation process comprises the following steps: the polyvinyl chloride insulation fire-resistant cable comprises a cable (01) and ribs (02), wherein a plurality of ribs (02) are uniformly distributed on the cable (01) in the circumferential direction.
5. The preparation process of the polyvinyl chloride insulated fire-resistant cable according to claim 4, wherein the preparation process comprises the following steps: the cable (01) is further provided with a plurality of clamping pieces (03), and the side faces of the clamping pieces (03) are of circular arc structures.
6. The preparation process of the polyvinyl chloride insulated fire-resistant cable according to claim 4, wherein the preparation process comprises the following steps: the clamping pieces (03) are all provided with flat blocks (04), and the upper ends of the flat blocks (04) are planes.
7. The process for preparing a fire-resistant polyvinyl chloride insulated cable according to claim 6 or 5, wherein: the preparation process of the polyvinyl chloride insulating fire-resistant cable further relates to a preparation device of the polyvinyl chloride insulating fire-resistant cable, the device comprises two forming portions and a power portion, the forming portions comprise a mold (10), a feed inlet (13) and exhaust holes (14), an inner cavity (11) is arranged in the mold (10), the mold (10) is provided with the feed inlet (13) and the exhaust holes (14), the feed inlet (13) and the exhaust holes (14) are communicated with the inner cavity (11), and the power portion can drive the two forming portions to automatically assemble.
8. The preparation process of the polyvinyl chloride insulated fire-resistant cable according to claim 7, wherein the preparation process comprises the following steps: the forming part further comprises hole sealing holes (12) and sealing plates (15), one end of the die (10) is provided with the hole sealing holes (12), the die (10) is connected with the sealing plates (15) through bolts (16), and the sealing plates (15) slide on the die (10).
9. The preparation process of the polyvinyl chloride insulated fire-resistant cable according to claim 8, wherein the preparation process comprises the following steps: the power part comprises an underframe (20), a screw rod (21) and sliders (22), the two sliders (22) are respectively in threaded connection with two sides of the screw rod (21), the screw rod (21) rotates on the underframe (20), the thread directions of two sides of the screw rod (21) are opposite, and the two dies (10) are respectively fixedly connected to the two sliders (22).
10. The preparation process of the polyvinyl chloride insulated fire-resistant cable according to claim 9, wherein the preparation process comprises the following steps: the power part further comprises rotating rollers (23) and cross beams (24), the two rotating rollers (23) rotate at two ends of the underframe (20) respectively, the cross beams (24) are arranged at two ends of the underframe (20), and the two dies (10) can slide on the two cross beams (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111172035.XA CN113838617A (en) | 2021-10-08 | 2021-10-08 | Polyvinyl chloride insulation fire-resistant cable and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111172035.XA CN113838617A (en) | 2021-10-08 | 2021-10-08 | Polyvinyl chloride insulation fire-resistant cable and preparation process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113838617A true CN113838617A (en) | 2021-12-24 |
Family
ID=78968419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111172035.XA Withdrawn CN113838617A (en) | 2021-10-08 | 2021-10-08 | Polyvinyl chloride insulation fire-resistant cable and preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113838617A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114603806A (en) * | 2022-05-13 | 2022-06-10 | 通号工程局集团天津装备技术有限公司 | Cable insulation extrusion device convenient to cooling |
-
2021
- 2021-10-08 CN CN202111172035.XA patent/CN113838617A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114603806A (en) * | 2022-05-13 | 2022-06-10 | 通号工程局集团天津装备技术有限公司 | Cable insulation extrusion device convenient to cooling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110524785B (en) | Multi-station injection molding machine for injection mold and using method thereof | |
| CN113838617A (en) | Polyvinyl chloride insulation fire-resistant cable and preparation process thereof | |
| CN115195027B (en) | Ejection device and method for injection mold | |
| CN107415106B (en) | Demolding device | |
| CN113954325B (en) | Injection molding machine for producing electric power line pipe | |
| CN116653243B (en) | Two-plate intelligent mode locking part based on multi-core control | |
| CN218615146U (en) | Synchronous thread-removing injection mold for internal and external thread joints | |
| CN116749449A (en) | Mould injection and coating integrated mould, automobile plastic front hatch cover forming system and technology | |
| CN113997514A (en) | Injection mold for improving molding quality of plastic products | |
| CN115447063A (en) | Intelligent embedding device and method for injection molding copper insert production | |
| CN210851279U (en) | Fireproof smoke exhaust valve blade forming die | |
| CN218965953U (en) | High-strength tide toy injection molding equipment | |
| CN221089457U (en) | Concrete block demoulding equipment | |
| CN212528585U (en) | Large-scale servo drive injection molding machine | |
| CN213006494U (en) | Demoulding structure of injection blow hollow molding machine | |
| CN108131505B (en) | Integrated solid corrugated pipe, equipment and method for producing corrugated pipe | |
| CN203600618U (en) | Composite fireproof bridge forming device | |
| CN218593557U (en) | 20 mould one shot forming's injection mold | |
| CN220864528U (en) | Novel hot vulcanization device | |
| CN219778587U (en) | Extruder for producing electric wires and cables | |
| CN116859171B (en) | Temperature-controllable test device for cable monitoring | |
| CN215849484U (en) | Mould forming device for optical cable splice closure | |
| CN215969293U (en) | Extrusion device for high-temperature mullite light brick production line | |
| CN114939979B (en) | Thermoforming mold | |
| CN220903953U (en) | Injection molding machine convenient for blanking |
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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211224 |
|
| WW01 | Invention patent application withdrawn after publication |