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A kind of halogen-free flame-retardant copper-plastic composite tape and its preparation

A copper-plastic composite tape, flame-retardant polyester technology, applied in cable/conductor manufacturing, lamination, conductive layer on insulating carrier, etc. Improve the cooling liquid cooling process, which is conducive to the effect of thinning and saving copper

Inactive Publication Date: 2015-10-21
JIUXING HLDG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, polyethylene and ethylene copolymers cannot fully meet the actual needs.

Method used

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  • A kind of halogen-free flame-retardant copper-plastic composite tape and its preparation
  • A kind of halogen-free flame-retardant copper-plastic composite tape and its preparation
  • A kind of halogen-free flame-retardant copper-plastic composite tape and its preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Production process of ultra-thin copper layer:

[0079] Pre-finished product rolling: select T2 copper strip with a thickness of 0.12mm, and roll it to a pre-finished product with a thickness of 0.08mm at a rolling speed of 0.5m / s.

[0080] Softening: The pre-finished product is softened by continuous online annealing, the softening temperature is 680°C, and the softening speed is 15m / min.

[0081] Finished product rolling: The pre-finished product is rolled to a finished product with a thickness of 0.03mm by a small four-high rolling mill with a diameter of 60mm working roll and a diameter of 300mm supporting roll. The work roll adopts hollow water-cooled roll, and the work roll directly cools the copper strip and adds an air cooling system at the discharge end for enhanced cooling, and at the same time blows the copper strip to keep the surface of the copper strip free of impurities and clean.

[0082] Softening: The finished copper strip after rolling is softened by...

Embodiment 2

[0108] Production process of ultra-thin copper layer:

[0109] Pre-finished product rolling: select a T2 copper strip with a thickness of 0.12mm, and roll it to a pre-finished product with a thickness of 0.06mm at a rolling speed of 0.5m / s. .

[0110] Softening: The pre-finished product is softened by continuous online annealing, the softening temperature is 750°C, and the softening speed is 20m / min.

[0111] Finished product rolling: the pre-finished product is rolled to a finished product with a thickness of 0.03mm by a small four-high rolling mill with a diameter of 90mm working roll and a diameter of 300mm supporting roll. The work roll adopts hollow water-cooled roll, and the work roll directly cools the copper strip and adds an air cooling system at the discharge end for enhanced cooling, and at the same time blows the copper strip to keep the surface of the copper strip free of impurities and clean.

[0112] 4) Softening: the finished copper strip after rolling is sof...

Embodiment 3

[0136] Production process of ultra-thin copper layer:

[0137] Pre-finished product rolling: select T2 copper strip with a thickness of 0.10mm, and roll to a pre-finished product with a thickness of 0.06mm at a rolling speed of 1m / s.

[0138] Softening: The pre-finished product is softened by continuous online annealing, the softening temperature is 800°C, and the softening speed is 25m / min.

[0139] Finished product rolling: the pre-finished product is rolled to a finished product with a thickness of 0.02mm by a small four-high rolling mill with a diameter of 90mm working roll and a diameter of 280mm supporting roll. The work roll adopts hollow water-cooled roll, and the work roll directly cools the copper strip, and an air cooling system is added at the discharge end for enhanced cooling, and at the same time, the copper strip is purged to keep the surface of the copper strip free of impurities.

[0140] Softening: The finished copper strip after rolling enters the continuo...

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Abstract

The invention relates to the field of cable belts, in particular to a copper-plastic composite belt suitable for a communication cable and an optical cable and preparation thereof. The copper-plastic composite belt is coated on the outer surface of the communication cable or the optical cable and sequentially comprises a red copper layer (1), an adhesive layer (2) and a polyester film layer (3), wherein the red copper layer (1), the adhesive layer (2) and the polyester film layer (3) are bonded and heated to form a composite structure. The tensile strength of the copper-plastic composite belt is larger than or equal to 180MPa, the elongation at break of the copper-plastic composite belt is larger than or equal to 15%, the interlayer peeling strength between a copper belt and a plastic layer is larger than or equal to 15N / cm, the conductivity of the copper-plastic composite belt is larger than or equal to 90% IACS, and no punchthrough happens on the single side of the copper-plastic composite belt 1 kvd.c,1min.

Description

technical field [0001] The invention relates to the field of cable tapes, in particular to a halogen-free flame-retardant copper-plastic composite tape suitable for communication cables and optical cables and its preparation. Background technique [0002] Copper-plastic composite tape is a substitute for pure copper tape for cables. It is one of the important varieties of modern copper processing materials, and its application in the communication cable and communication optical cable industries is continuously increasing. At present, the production standard of copper-plastic composite tape generally refers to YD / T 723.4-2007, that is, pure copper strip is used as the base material, the thickness is above 0.1mm, and the plastic film is made of ethylene copolymer or polyethylene plastic film, and the thickness is above 0.05mm. The tensile strength of the plastic film is ≥15MPa. Further thinning the base material of the pure copper strip, thereby reducing the total thickness ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/17H01B7/18H01B7/295H01B5/14H01B13/22G02B6/44B32B15/09B32B15/20B32B7/12B32B37/12B32B37/06B32B37/10
Inventor 李文君刘刚王瑛
Owner JIUXING HLDG GRP
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