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Aluminium magnesium alloy wire for cable braided shield and production method thereof

A braided shielding, aluminum-magnesium alloy technology, applied in the field of aluminum-magnesium alloy wire for cable braiding and shielding, can solve the problems of unsatisfactory breaking force and elongation at break, etc.

Inactive Publication Date: 2005-01-05
临安市新联线缆材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The breaking force and elongation at break of the aluminum-magnesium alloy wire produced by this process are not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment 1: According to the ratio by weight of 3.5% magnesium, 0.15% chromium, 0.3% boron, and the balance is aluminum, the proportioning materials are prepared, and through smelting-primary drawing forming-heat treatment-rough drawing-middle drawing-heat treatment-fine drawing, the fine The coil formed after drawing enters the automatic monitoring tubular annealing process. In this process, the automatic monitoring tubular annealing equipment is used. The equipment has a pay-off machine, a tubular annealing furnace, a take-up machine and a monitoring system. When the rotation speed is 800-1000 rpm, the temperature is controlled at 380-430°C. The upper end of the tubular annealing furnace is provided with a cleaning surface, and the lower end is provided with an anti-oxidant tank. On the same inclined plane with an inclination angle of 110-130°, the alloy wire enters the tubular annealing furnace from the pay-off machine through the guide wheel and the cleaning surfa...

Embodiment 2

[0010] Embodiment two: by weight percent magnesium 3.5%, chromium 0.2%, boron 0.25%, surplus is the proportioning preparation of aluminum, produces by the method described in embodiment one, obtains the resistivity when 20 ℃ of 0.049 Ω·mm 2 / m, breaking force 5.41N, elongation at break of 12% aluminum-magnesium alloy wire for cable braiding and shielding.

Embodiment 3

[0011] Embodiment three: by weight percent magnesium 3.7%, chromium 0.2%, boron 0.1%, surplus is the proportioning preparation of aluminum, produces by the method described in embodiment one, obtains the resistivity when 20 ℃ of 0.051Ω · mm 2 / m, breaking force 5.41N, elongation at break of 12% aluminum-magnesium alloy wire for cable braiding and shielding.

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Abstract

The invention relates to an aluminium magnesium alloy wire for cable braided shield and production method thereof, which contains, in weight percentage, 3.2-3.9% magnesium, 0.15-0.35% chromium, 0.1-0.5% boron, and the surplus is aluminum. Its production methods is: carrying out the production on the raw material having boron according to the process of smelting, primary stretch forming, heat treatment, rough drawing, secondary drawing, heat treatment, carefully drawing, and a automatically monitored tubular annealing process that is adopted after the carefully drawing process. The aluminium magnesium alloy wire for cable braided shield adopting the present inventive rate, has a resistivity no more thatn 0.051 omega.mm[2] / m in 20 DEG C, which reaches a level of the foreign similar advanced product; the aluminium magnesium alloy wire for cable braided shield produced by the present inventive method, has a break force no less than 5.1N, and a breaking elongationoun rate no less than 10%.

Description

technical field [0001] The invention relates to an aluminum-magnesium alloy wire for cable braiding and shielding that can be widely used in CATV and other coaxial cable industries and a production method thereof. technical background [0002] The braiding layer of CATV coaxial cable was originally made of tinned copper wire. Due to the characteristics of aluminum-magnesium alloy wire with light specific gravity, low cost, anti-galvanic corrosion and low recycling value to prevent theft, it is gradually replacing tinned copper wire. At present, the ratio of raw materials for the production of aluminum-magnesium alloy wire for cable braiding and shielding is as follows: it includes 3.2-3.9% magnesium, 0.15-0.35% chromium, and the balance is aluminum. Chromium is used as a main reinforcing element and aluminum-magnesium and other elements Combined, it can improve the strength of aluminum alloy, corrosion resistance, rust prevention and make the surface gloss of the product; bu...

Claims

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Application Information

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IPC IPC(8): C22C21/06C22F1/047
Inventor 周贤言
Owner 临安市新联线缆材料有限公司
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