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Member for slide fasteners or buttons, which is formed from plated aluminum or aluminum alloy

An aluminum alloy and zipper technology, which is applied in the field of zipper elements, can solve the problems of difficult-to-plate materials and insufficient gloss, and achieve the effect of both crack resistance and gloss, and low sliding resistance

Pending Publication Date: 2019-07-30
YKK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, aluminum is known to have insufficient luster, and it is easy to form a strong oxide film on the surface, which is difficult to plate. Glossy plating coating technology

Method used

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  • Member for slide fasteners or buttons, which is formed from plated aluminum or aluminum alloy
  • Member for slide fasteners or buttons, which is formed from plated aluminum or aluminum alloy
  • Member for slide fasteners or buttons, which is formed from plated aluminum or aluminum alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5

[0094] Under the same conditions as in Comparative Example 1, pretreatment and zincate treatment were performed on a plurality of elements for slide fasteners produced by press-punching an aluminum rectangular wire rod. Next, a copper pyrophosphate plating layer (strike plating layer→main plating layer) and a copper sulfate plating layer having an average thickness described in Table 1 were sequentially formed by barrel plating. Thereafter, in Examples 2 to 4, a finishing plating layer (Cu—Sn—Zn alloy plating layer) having an average thickness described in Table 1 was formed by barrel plating. In Example 5, a Cu—Sn black plating layer (color tone adjustment plating layer) having an average thickness described in Table 1 was formed on the finishing plating layer by barrel plating. In Example 1, no finishing plating layer was formed.

[0095]

[0096] (1) Zinc diffusion layer

[0097] For each of the plated elements of the examples and comparative examples obtained under the...

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PUM

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Abstract

Provided is a member for slide fasteners or buttons, which is formed from a plated aluminum or aluminum alloy, and which has both cracking resistance and gloss at the same time. A member for slide fasteners or buttons, which comprises: a base material (101) that is formed from aluminum or an aluminum alloy; a zinc diffusion layer (102) that is obtained by diffusing zinc inside the surface of the base material; and a plurality of plating layers that cover the zinc diffusion layer (102). The plurality of plating layers comprise a copper pyrophosphate plating layer (103) and a copper sulfate plating layer (104) sequentially from the inner side.

Description

technical field [0001] The present invention relates to members of zippers or buttons made of plated aluminum or an aluminum alloy. In particular, the present invention relates to plated aluminum or aluminum alloy zipper elements. Background technique [0002] Conventionally, in the field of slide fasteners, products using zinc or copper as a base material and various platings on the surface are known. In the field of buttons, there are known products in which various platings are performed on the surface of brass having excellent plating properties as a base material. However, in recent years, the increase in materials has become a problem, and further reduction in the weight of buttons and zippers has been increasingly demanded. Therefore, a countermeasure to manufacture slide fasteners and buttons using lightweight and relatively inexpensive aluminum has been considered. However, aluminum is known to have insufficient luster, and it is easy to form a strong oxide film ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A44B19/00A44B1/04C25D7/02
CPCC25D7/00C25D7/02C25D9/04A44B19/24A44B19/00A44B1/04A44B1/08C25D5/10C25D5/44A44B1/02A44B19/42C25D3/38C25D3/22C25D5/605C25D5/627
Inventor 高本彩杉本保彦
Owner YKK CORP
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