Mass of metal fibers and process for making such a mass

A technology of metal fibers and substances, applied in the direction of manufacturing tools, metal processing equipment, accessories of tool holders, etc., can solve problems such as inability to manufacture

Active Publication Date: 2015-05-27
NV BEKAERT SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] A disadvantage of the prior art is that it is not possible to manufacture in an economical and rapid manner small quantities of metal fibers (for example a few hundred grams, or even a few kilograms) that vary little in equivalent diameter between fibers

Method used

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  • Mass of metal fibers and process for making such a mass
  • Mass of metal fibers and process for making such a mass
  • Mass of metal fibers and process for making such a mass

Examples

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Embodiment Construction

[0072] Figures 1 to 8 An example of the fiber section of the metal fiber obtained from the fibrous substance as the first aspect of the present invention is shown. The fiber section has two adjacent straight sides 110 , 120 with an included angle less than 90°, and the fiber section has one or more irregularly shaped curved sides 130 .

[0073] Figure 9 A cross-sectional view of an example apparatus for fiber cutting according to an embodiment of the third aspect of the invention is shown. A block 910 is provided. The block 910 will slide at a constant speed along the axis of the lathe (not shown in the figure). Sliding motion can be provided by pre-tensioned ball bearings.

[0074] The housing 915 is fixed on the block 910 . Housing 915 includes piezoelectric motor 920 . By measuring the rotational speed of the lathe, the vibration frequency of several kilohertz is synchronized electronically (with a suitable controller) to the rotational speed of the lathe. The tool ...

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Abstract

A mass of metal fibers is disclosed. The metal fibers of the mass have a discrete length. The cross section of the metal fibers has two neighboring straight lined sides with an included angle of less than 90° and one or more irregularly shaped curved sides. The metal fibers of the mass have an average equivalent diameter of the fibers of less than 100 µm. The metal fibers of the mass have a standard deviation between fibers of the equivalent fiber diameter less than 25% of the equivalent fiber diameter.

Description

technical field [0001] The present invention relates to a metal fibrous substance. The metal fibrous mass of the invention can be produced with less weight and the metal fibers in said mass have less variation in equivalent diameter between fibers. In addition, the present invention describes a method for producing such fibrous substances. Such metal fibrous substances can be used, for example, to produce nonwoven webs which can be used in a variety of applications, such as filtration, electrodes for fuel cells and electrolyzers, catalysts . . . . Background technique [0002] Various production methods are known for producing metal fibers (eg stainless steel fibers) in the diameter range below 100 μm. Examples are beam drawing (as disclosed in US-A-2050298, US-A-3277564 and US-A-3394213), scraping (as disclosed in US-A-4930199), machining (as disclosed in EP0030606 and EP0292651 disclosed in ) and drawing or extruding fibers from the melt (for example disclosed in US-B1-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C47/00C22C47/06B21C37/04B23P17/06
CPCB21C37/047B23P17/06C22C47/00C22C47/06Y02E60/50Y10T82/10Y10T82/2502Y10T428/12424B23B29/125C25B11/02H01M4/9075
Inventor F·韦沙瓦S·韦尔默朗
Owner NV BEKAERT SA
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