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Chrome plated zinc alloy zipper and electroplating method thereof

A zinc alloy, zipper technology, applied in clothing, fasteners, sliding fastener components, etc., can solve the problems of easy fading or peeling, short service life, poor electrical conductivity, etc., to achieve beautiful colors, good wear resistance, and difficult faded effect

Active Publication Date: 2013-03-06
JINJIANG YINXIN ZIPPER WEAVING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the chain teeth use the thin copper wires in the chain belt to conduct electricity between the chain teeth, the current conduction performance of the thin copper wires in the chromium solution is extremely poor, and once the current is weak or the current is not connected, the electroplated chromium layer will be damaged. Form multi-layer coatings that are not combined with each other, which are easy to peel off and cannot achieve the desired effect. The electroplating of chromium has been unable to be applied to the industrial production of zinc alloy zipper electroplating. Layers of color paint to achieve an aesthetic effect, but it tends to fade or peel off easily and has a short service life

Method used

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  • Chrome plated zinc alloy zipper and electroplating method thereof

Examples

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Effect test

Embodiment 1

[0026] Embodiment one of the electroplating method for realizing electroplating the above-mentioned chrome-plated zinc alloy slide fastener includes the following process steps:

[0027] (a) Cleaning: use a degreasing powder solution with a mass concentration of 30% or a dewaxing powder solution with a mass concentration of 30% to clean the zinc alloy zipper. The temperature is controlled at 40 degrees, and the oil on the surface of the zinc alloy zipper is removed. Zinc alloy zippers are cleaned.

[0028] (b) Alkaline copper plating: Use cuprous ions with a mass concentration of 4% and a 6% sodium cyanide solution as the electroplating solution, the temperature of the electroplating solution is controlled at 30 degrees, and the zinc alloy zipper is used as the cathode in the electrolytic cell. A layer of alkali copper is plated on the zipper teeth.

[0029] (c) Acid copper plating: using a copper sulfate solution with a mass concentration of 15%, the temperature of the elect...

Embodiment 2

[0042] Embodiment two of the electroplating method for realizing electroplating the above-mentioned chrome-plated zinc alloy slide fastener includes the following process steps:

[0043] (a) Cleaning: Clean the zinc alloy zipper with a degreasing powder solution with a mass concentration of 50% or a dewax powder solution with a mass concentration of 50%. Zinc alloy zippers are cleaned.

[0044] (b) Alkaline copper plating: Use cuprous ion with a mass concentration of 6% and 8% sodium cyanide solution as the electroplating solution, the temperature of the electroplating solution is controlled at 70 degrees, and the zinc alloy zipper is used as the cathode in the electrolytic cell. A layer of alkali copper is plated on the zipper elements.

[0045] (c) Acid copper plating: using a copper sulfate solution with a mass concentration of 25%, the temperature of the electroplating solution is controlled at 40 degrees, and the zinc alloy zipper is used as the cathode in the electrolyt...

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Abstract

The invention relates to the field of zinc alloy zippers, in particular to a chrome plated zinc alloy zipper which has good wear resistant performance, high hardness, strong corrosion resistant performance, long service life and bright and attractive appearance. The chrome plated zinc alloy zipper comprises two zipper belts and two lines of zipper teeth; the two lines of chain teeth are respectively inlaid on the two zipper belts by tramsplacing and meshing; a conductive wire is wrapped on opposite ends of each zipper belt. which are provided with the zipper teeth; more than one copper layers are electroplated on all the zipper teeth; more than one nickel layer is electroplated outside the copper layers on all the zipper teeth; and more than one chrome containing layer is electroplated outside the nickel layers on all the zipper teeth.

Description

technical field [0001] The invention relates to the field of zinc alloy slide fasteners, in particular to a chrome-plated zinc alloy slide fastener and an electroplating method thereof. Background technique [0002] After the existing zinc alloy zipper is die-casted, its surface is often rough, and the color is poor and unsightly. Usually, a layer of metal protection layer, such as copper and gold, is electroplated on the surface of the zinc alloy zipper. And because of the needs of electroplating, zinc alloy zippers often all can wrap more than one conductive wire in its chain belt during its manufacturing process, for the conduction between each chain element when being used for electroplating. Chinese Patent No.: ZL 200820145408.8 discloses an improved structure of zinc alloy die-casting zipper, including chain elements, sliders, and two chain belts. A row of chain teeth is respectively embedded in the opposite sides of the two chain belts, and the two rows of chain teeth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D7/02C25D5/12
Inventor 施志明
Owner JINJIANG YINXIN ZIPPER WEAVING
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