Fireproof cable and production process thereof

A fire-resistant cable and production process technology, applied in the direction of insulated cables, cable/conductor manufacturing, cables, etc., can solve problems such as limited fire resistance, fire, and affecting use safety, so as to save labor costs, reduce production costs, and stabilize fire performance Effect

Active Publication Date: 2020-06-16
四川金力电缆集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Cables are the lines used to connect electricity in buildings, and with the rapid development of electricity in today's society, the demand for electricity is also increasing. In this case, the number of fires caused by electricity is also increasing. The reason is that In the process of power transmission, the flame retardancy of the cable is poor. Once overload, short circuit, excessive contact resistance or excessive external heat source occur, it is very easy to cause the cable to catch fire, which in turn leads to a fire. From this we can see that the fireproof cable Design and production have goo

Method used

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  • Fireproof cable and production process thereof
  • Fireproof cable and production process thereof
  • Fireproof cable and production process thereof

Examples

Experimental program
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Example Embodiment

[0032] Example 1

[0033] see figure 1 As shown, a schematic structural diagram of a fireproof cable provided in this embodiment specifically includes: from the inside to the outside, it includes a fire-resistant skeleton 2, an insulating and heat-insulating layer 1, a conductive core 5, a shielding layer 3, an insulating coating 4, Refractory filling layer 6, mica tape layer 7 and protective cover 8; wherein:

[0034] The refractory skeleton 2 is provided with at least three clamping grooves in an annular array; the insulating and heat insulating layer 1 is coated on the inner wall of the clamping groove; the conductive core 5 is filled in the clamping groove, and each clamping groove has a plurality of conductive cores 5; the shielding layer 3 is wrapped on the outer side of the conductive core 5, and is bonded and fixed with the refractory skeleton 2; the insulating coating 4 is bonded to the outer side of the shielding layer 3, and the refractory filling layer 6 is filled...

Example Embodiment

[0039] Embodiment 2

[0040] see Figure 2-7 As shown, the device structure diagram used in the production process of a fireproof cable provided by this embodiment, and the final production fireproof cable is the disclosed fireproof cable of the embodiment, and specifically includes the following production steps:

[0041] S1. Drawing and forming of the conductive core 5 (not shown in the figure): the metal blank is drawn by a forming die to form the conductive core 5 with a diameter that meets the requirements.

[0042] S2. Composite molding of the conductive core 5 and the refractory skeleton 2: The refractory skeleton 2 (not shown in the figure) is formed based on an extruder, and a plurality of conductive cores 5 and the refractory skeleton 2 are introduced into the wire production system to obtain a composite type wire.

[0043]Wherein: the wire production system is provided with a feeding mechanism, an assembling mechanism and a discharging mechanism in sequence along ...

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Abstract

The invention belongs to the technical field of cables, and discloses a fireproof cable and a production process thereof. The fireproof cable sequentially comprises a fireproof framework, an insulating and heat-insulating layer, conductive cores, a shielding layer, an insulating coating layer, a fireproof filling layer, a mica tape layer and a protective sleeve from the inside to the outside. Theproduction process comprises the steps of drawing and molding the conductive core; conducting composite molding of the conductive cores and the fireproof framework: extruding to form the fireproof framework, and guiding the plurality of conductive cores and the fireproof framework into a wire production system to prepare a composite wire; carrying out filling and coating of the fireproof filling layer and the mica tape layer: feeding the composite wire into a fireproof material filling mechanism to realize filling and forming of the fireproof filling layer, and winding the mica tape layer on the outer side of the fireproof filling layer in cooperation with a tape winding mechanism; and coating the protective sleeve. In conclusion, the uniformity of the fireproof performance of each part ofthe formed fireproof cable is effectively ensured, so that the problem of poor local fireproof performance is avoided, and the safe use of the fireproof cable is met.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to a fireproof cable and a production process thereof. Background technique [0002] Cables are the lines used to connect electricity in buildings, and with the rapid development of electricity in today's society, the demand for electricity is also increasing. In this case, the number of fires caused by electricity is also increasing. The reason is that In the process of power transmission, the flame retardancy of the cable is poor. Once overload, short circuit, excessive contact resistance or excessive external heat source occur, it is very easy to cause the cable to catch fire, which in turn leads to a fire. From this we can see that the fireproof cable Design and production have good application prospects. [0003] In the prior art, there is a fireproof cable with certain fireproof performance, but its fireproof performance is limited; this kind of cable includes an o...

Claims

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Application Information

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IPC IPC(8): H01B7/29H01B7/295H01B13/22
CPCH01B7/29H01B7/292H01B7/295H01B13/22
Inventor 余绍能葛林优郑能军程真王跃
Owner 四川金力电缆集团有限公司
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