Forming method of anode oxidation film on chain tooth row and its forming equipment

A technology of anodic oxidation film and zipper, applied in the direction of anodic oxidation, electrolytic coating, surface reaction electrolytic coating, etc., can solve problems such as corrosion, and achieve the effect of avoiding discharge points or corrosion and continuous formation

Inactive Publication Date: 2003-07-16
YKK CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the discharge point is left on the surface of the sprocket thus causing corrosion

Method used

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  • Forming method of anode oxidation film on chain tooth row and its forming equipment
  • Forming method of anode oxidation film on chain tooth row and its forming equipment
  • Forming method of anode oxidation film on chain tooth row and its forming equipment

Examples

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Embodiment Construction

[0086] According to the embodiment of the present invention, in the slide fastener F (hereinafter referred to as slide fastener F) that is made up of elongated linear bodies, electrified thin wires wound with foil-like or wire-like materials such as aluminum or copper are sewn as the composition of the slide fastener tape. The part of the thread which keeps the energized thread in contact with a plurality of zipper teeth made of aluminum or an aluminum alloy implanted at equal intervals along the side edges of the zipper tape, as described previously by the same applicant in the Japanese Utility Model Gazette No. 2587180 as proposed. A sulfuric acid solution was used as the solution used in the electrolytic bath in this example.

[0087] Hereinafter, best modes of the present invention will be described in detail by referring to the accompanying drawings.

[0088] figure 1 According to a first embodiment of the present invention, an anodized film forming apparatus of element...

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Abstract

PROBLEM TO BE SOLVED: To form the anodically oxidized films of the row of zip teeth of a fastener chain to arbitrary thicknesses while preventing the defects of energization and contact.SOLUTION: The forming apparatus 1 has an external energizing section 8 for electrically and directly energizing an electrode plate 4a disposed in an electrolyte of a first electrolytic cell 2a and a chain introducing section 5 to each other and a plurality of energizing sections 9 for energizing two sets a pair of adjacent electrode plates 4 within the second and subsequent electrolytic cells 2 to each other across the electrolyte and the fastener chain F. While the fastener chain is successively wrapped around a plurality of rollers 3 and 7 and is transferred zigzag, the tooth trains of the fastener chain are directly energized through the energizing yarn of the fastener chain by the external energizing section. The two sets a pair of the second and subsequent electrode plates are energized to each other in the bath by the energizing sections. The anodically oxidized films having the arbitrary film thicknesses are formed by changing the number of the passage stages to the second and subsequent electrolytic cells, the energizing quantity in the arbitrary electrolytic cells, etc.

Description

technical field [0001] The present invention relates to a method of forming an anodic oxide film on an element row of a slide fastener in which an electrified thread is provided on a part of constituent threads of a slide fastener tape, and an apparatus for forming the oxide film. In particular, the present invention relates to a method of forming an anodized film on element rows of a slide fastener, which method enables the anodized film to have an arbitrary thickness uniformly formed under stable conditions, and to a method for forming the anodized film equipment. Background technique [0002] In general, a method of forming an oxide film on a large number of elements made of aluminum or an aluminum alloy implanted at the same intervals along the side edge portion of a fastener tape of a slide fastener has become widely popular. In this method of forming an oxide film, the elements are generally immersed in a solution such as sulfuric acid,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A44B19/42C25D7/06C25D11/00C25D11/04C25D17/08C25D21/00
CPCC25D11/005C25D11/04C25D7/02A44B19/42
Inventor 中田纪夫松木晋策菊川范夫岩狭裕信
Owner YKK CORP
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