Halogen-free flame-retardant copper-plastic composite belt and preparation thereof

A copper-plastic composite tape, flame-retardant polyester technology, applied in cable/conductor manufacturing, lamination, conductive layer on insulating carrier, etc. The effect of improving the cooling liquid cooling process, reducing the rolling force and improving the electrical properties

Inactive Publication Date: 2013-06-19
JIUXING HLDG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, polyethylene and ethylene copo

Method used

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  • Halogen-free flame-retardant copper-plastic composite belt and preparation thereof
  • Halogen-free flame-retardant copper-plastic composite belt and preparation thereof
  • Halogen-free flame-retardant copper-plastic composite belt and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0075] Example 1

[0076] The production process of ultra-thin copper layer:

[0077] Pre-finished product rolling: Choose a 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 (please use the point value). .

[0078] Softening: The pre-finished product is softened by continuous online annealing, the softening temperature is 680℃, and the softening speed is 15m / min.

[0079] Finished product rolling: The pre-finished product is rolled to a finished product with a thickness of 0.03mm by a small four-roll mill with a work roll diameter of 60mm and a support roll diameter of 300mm. The work roll adopts a hollow water-cooled roll. The work roll directly cools the copper strip and adds an air cooling system at the discharge end for enhanced cooling. At the same time, the copper strip is purged to keep the surface of the copper strip clean without impurities.

[0080] Softening: The finished copper strip af...

Example Embodiment

[0105] Example 2

[0106] The production process of ultra-thin copper layer:

[0107] Pre-finished product rolling: Choose 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. .

[0108] Softening: The pre-finished product is softened by continuous online annealing, the softening temperature is 750℃, and the softening speed is 20m / min.

[0109] Finished product rolling: The pre-finished product is rolled into a finished product with a thickness of 0.03mm by a small four-roll mill with a work roll diameter of 90mm and a support roll diameter of 300mm. The work roll adopts a hollow water-cooled roll. The work roll directly cools the copper strip and adds an air cooling system at the discharge end for enhanced cooling. At the same time, the copper strip is purged to keep the surface of the copper strip clean without impurities.

[0110] 4) Softening: The finished copper strip after rolling is softened ...

Example Embodiment

[0133] Example 3

[0134] The production process of ultra-thin copper layer:

[0135] Pre-finished product rolling: Choose a T2 copper strip with a thickness of 0.10mm and roll it to a pre-finished product with a thickness of 0.06mm at a rolling speed of 1m / s.

[0136] Softening: The pre-finished product is softened by continuous on-line annealing, the softening temperature is 800℃, and the softening speed is 25m / min.

[0137] Finished product rolling: The pre-finished product is rolled to a finished product with a thickness of 0.02mm by a small four-roll mill with a work roll diameter of 90mm and a support roll diameter of 280mm. The work roll adopts a hollow water-cooled roll. The work roll directly cools the copper strip and adds an air cooling system at the discharge end for enhanced cooling. At the same time, the copper strip is purged to keep the surface of the copper strip clean without impurities.

[0138] Softening: The finished copper strip after rolling enters the continuous...

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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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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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