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Method for plating ternary alloy on outer conductor of semisteel concentric transmission line

A ternary alloy, coaxial cable technology, applied in liquid chemical plating, superimposed layer plating, metal material coating process and other directions, can solve the problems of outer conductor material failure, affecting appearance quality, easy to be scratched and so on , to improve the ability of environmental corrosion resistance, good appearance quality, not easy to be scratched

Active Publication Date: 2009-04-08
GANZHOU JINXINNUO CABLE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the softness of the tin plating layer, it is easy to be scratched. On the one hand, the outer conductor material exposed at the scratched part will be oxidized by the environment and cause local failure. Darken, affect appearance quality

Method used

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  • Method for plating ternary alloy on outer conductor of semisteel concentric transmission line
  • Method for plating ternary alloy on outer conductor of semisteel concentric transmission line

Examples

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Embodiment 1

[0032] figure 1 Embodiment 1 of the method for plating a ternary alloy on the outer conductor of a semi-rigid coaxial cable according to the present invention is shown. Such as figure 1 As shown, the method includes the following steps:

[0033] 1. Degrease the outer conductor, and then wash it with ordinary water (such as tap water, the same below), usually twice;

[0034] 2. Carry out pickling and derusting treatment, and then wash with ordinary water, usually twice;

[0035] 3. Perform strong acid micro-corrosion light treatment to make the surface of the outer conductor light, and then wash it with ordinary water, usually twice;

[0036] 4. Perform surface activation treatment on the outer conductor with acid, and then wash with ordinary water, usually twice;

[0037] 5. Clean the outer conductor with pure water;

[0038] 6. Perform alkaline copper plating on the outer conductor in alkaline solution, and then wash it with ordinary water, usually twice;

[0039] 7. Pi...

Embodiment 2

[0057] figure 2 Embodiment 2 of the method for plating the outer conductor of a semi-rigid coaxial cable with a ternary alloy according to the present invention is shown. Such as figure 2 As shown, in order to obtain a better ternary alloy coating with anti-corrosion ability, embodiment two increases the passivation sealing step on the basis of embodiment one, that is, after step 10 of embodiment one is completed, before the hot pure water cleaning step, Use chromic anhydride to passivate and seal the outer conductor coating, and wash it with ordinary water after treatment, which can remove the pores of the coating, effectively prevent the corrosive medium from corroding the outer conductor substrate through the pores of the coating, and achieve the purpose of improving the anti-corrosion ability of the coating.

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Abstract

The invention relates to a way for plating a ternary alloy on the outer conductor of a semi-rigid coaxial cable, that is, plating a ternary alloy of copper, tin and zinc on the copper outer conductor of a semi-rigid coaxial cable. The way includes the following procedures: washing by water and prickling after removing oil, washing by water and slightly corroding by strong acid to be brightening; then washing by water and acid activating; still then washing by water, washing by pure water, plating copper in alkaline state, then washing by water, prickling by thin sulfuric acid; plating copper in acid state, then washing by water, washing by pure water; plating the ternary alloy, then washing by water. The way allows the plating to be strongly bonded with the substrate of the copper conductor, the plating is intense, will not be liable to scratching, hence the resistance of the semi-rigid coaxial cable to the environmental corrosion is greatly improved; the ternary alloy contains no magnetic material, and the influence from the ternary alloy on the cross-modulation is neutral; the appearance of the plating is good and like that of stainless steel.

Description

technical field [0001] The invention relates to a method for plating an anti-corrosion layer on the outer conductor of a coaxial cable, in particular to a method for plating a ternary alloy on the outer conductor of a semi-rigid coaxial cable. Background technique [0002] The outer conductor of the semi-rigid cable is generally made of copper tube. Initially, the outer surface of the copper tube was not subjected to any protective treatment, and the copper tube was extremely susceptible to environmental oxidation and failure. In order to solve the problem that the copper tube is susceptible to oxidation and failure, people have tinned the outer surface of the copper tube to achieve the purpose of anti-oxidation and corrosion to a certain extent. However, due to the softness of the tin plating layer, it is easy to be scratched. On the one hand, the outer conductor material exposed at the scratched part will be oxidized by the environment and cause local failure. Darken and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C28/02C23C18/38C25D3/38
Inventor 黄昌华周小明
Owner GANZHOU JINXINNUO CABLE TECH
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