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Stainless steel suitable for used with failure stitch knock-off, zipper and button

A self-stop device, stainless steel technology, used in the field of zippers and buttons

Inactive Publication Date: 2006-06-28
YKK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Specifically, in the case where parts must be elastic, use of the above-mentioned alloys is problematic, so conventional stainless steel, etc. must be used; therefore, it is not sufficient to perform detection of whether a broken needle enters clothing, etc. during sewing. possible

Method used

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  • Stainless steel suitable for used with failure stitch knock-off, zipper and button
  • Stainless steel suitable for used with failure stitch knock-off, zipper and button
  • Stainless steel suitable for used with failure stitch knock-off, zipper and button

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Embodiment Construction

[0036] Detailed description of the preferred embodiment

[0037] The following is a description of the stainless steel of the present invention.

[0038]The stainless steel of the present invention must have a magnetic permeability of 1.005 or lower in a 1kOe magnetic field, and a magnetization of 550memu / g or lower in a 18kOe magnetic field, which will allow the stainless steel to be used in conjunction with a broken needle self-stop device, which It is an object of the present invention. With these conditions being satisfied, finished products, parts and materials suitable for use in combination with dead needle stops can be provided, which can allow dead needle stops to be accurate in finding broken needles or parts of broken needles and even when stainless steel is used in or as an integral part of finished products for personal decorative use, i.e. zippers and buttons, it will not cause failure of the broken needle stop device, said broken needle Or the part of the brok...

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Abstract

A stainless steel suitable for use with a needle detector, that has a magnetic permeability of 1.005 or less in a magnetic field of 1 kOe, and a magnetization of 550 memu / g or less in a magnetic field of 18 kOe. The steel comprises, in mass %, 0.01 to 0.15% of C, 0.1 to 5% of Si, 1 to 10% of Mn, 8 to 25% of Ni, 14 to 30% of Cr, 0.01 to 0.25% of N, and the remainder Fe and impurities, wherein an Ni equivalent, which is defined as Ni equivalent=Ni+0.6Mn+9.69(C+N)+0.18Cr-0.11Si<2>, has a value of 19 or more, and may further contain at least one selected from among a) 0.5 to 3% of Cu, b) 0.05 to 0.5% of at least one element selected from Nb, W and V, and c) 0.1 to 2% of Mo. The stainless steel enables reliable detection of whether broken needles have got into clothing or the like during sewing, and there can be a slide fastener and buttons that satisfy required properties and can be used with needle detectors due to constituent components thereof being manufactured using the stainless steel.

Description

field of invention [0001] The present invention relates to a stainless steel suitable for use in combination with a broken needle self-stop device that does not cause failure of the broken needle self-stop device, and a zipper installed on clothing, footwear, etc. and suitable for use in combination with the broken needle self-stop device and buttons. Background of the invention [0002] Generally, as such stainless steels, stainless steels disclosed in Japanese Patent Laid-Open No. 6-4905B and Japanese Patent Laid-Open No. 6-41624B are known. In the former patent publication, a non-magnetic stainless steel having excellent elasticity is disclosed, while in the latter patent publication, a work-hardened non-magnetic stainless steel is disclosed which maintains non-magnetic. However, although the stainless steel in the above-mentioned patent publication is non-magnetic to such an extent, that is, it discloses a magnetic permeability of 1.01 or less, its magnetic force is st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/10A44B1/02A44B19/00A44B19/26A44B19/42C22C38/00C22C38/40C22C38/48
CPCA44B1/02Y10T24/3651Y10T24/2561A44B19/26C22C38/40
Inventor 喜多和彦粟田荣杉原皓喜铃木聪石井胜已平松直人
Owner YKK CORP