JPS59205239A - Manufacture of metal fiber - Google Patents

Abstract

PURPOSE:To mix metal fibers of different materials and diameters in any proposed proportion uniformly and well dispersed, by placing metal sheets of desired material and thickness in a specific proportion into the form of a laminated coil, and by cutting the end face using cutters rotating relatively. CONSTITUTION:Normally cold rolled steel sheets of 0.025-0.5mm. in thickness and stainless steel sheets of the same thickness are wound round a shaft, as being laminated one over another, and the end is fixed by adhesives etc. to provide a coil 3, which is then rotated, and its end face is machined by cutters 4 with a depth of cutting as small as 0.03-0.5mm.. The metal fibers 1A, 2A obtained through this machining provide a continuous wool-like material with square or rhombic profile in a size according to the thicknesses of metal sheets 1, 2 used and the depth of cutting. The mix proportion of different materials will be, in the case of two layers, proportional to the thicknesses of the metal sheets 1, 2, and to the total thickness of the materials in the case of three layers or more, so that any desired proportion can be obtained by adjusting the sheet thicknesses and the number of sheets in lamination.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel manufacturing method that allows wool-like or fibrous metal fibers of different materials or thicknesses to be mixed in arbitrary proportions and manufactured in large quantities at low cost.

Traditionally, wool-like metal fibers used for household or industrial scrubbers, etc., have been produced by continuously cutting metal wire with a special knife, and the fibers are usually of one type in terms of material and thickness. It is something.

However, in the case of the above-mentioned scrubbing brush, rather than using a single type of metal fiber, for example, it is made of a mixture of metal fibers of ordinary steel and stainless steel, and although the ordinary steel fibers are easily fragmented, they are effective as an abrasive material and can be used as an abrasive. Ideally, the steel fibers have poor abrasive power but are strong and have the effect of retaining the shape of the scrubber as a binder.

However, it is of course impossible to uniformly disperse and mix finished metal fibers of different materials or thicknesses in any predetermined ratio, and even in the case of short fibers, It is extremely difficult.

In view of the above circumstances, an object of the present invention is to manufacture metal fibers of different materials or dowager types while uniformly dispersing and mixing them in any predetermined ratio at the stage of manufacturing wool-like or fiber-like metal fibers, and to produce the desired Material and one! A plurality of metal thin plates each having a thickness of 100 mm are laminated at a predetermined ratio to form a coiled body or a long or short plate body. This method of manufacturing a metal fiber is characterized in that the desired composite metal fiber is obtained by cutting the side edge portion with a blade that rotates or reciprocates relatively.

The present invention will be explained below based on the drawings.

FIG. 1 is a perspective view of the main part showing the first embodiment of the method of the present invention, for example, a thin metal plate (1) made of cold-rolled common steel to a thickness of 0.025 to 0.05 mm (a part of the end surface is shown as a solid line). ) and a thin metal plate made of Nutenrenu steel with the same thickness (2)
(a part of the end surface is shown by a broken line) are laminated, and the coiled body (3) is formed by applying a winding force to a winding shaft (not shown) and fixing the ends with adhesive or a fastening band so as not to unravel. ,
One end of this coiled body (3) is fixed to the chuck of a lathe and rotated in the direction of the arrow, and the other end is attached to one or more flat bits or a cross-shaped cutting tool attached to a tool post. (4), for example, 0.03 to 0 in the axial direction,
Cutting is performed with a minute depth of cut δ of about 5mm.

Metal fiber CIA obtained as cuttings from the cutting process
M2A) is the plate thickness and cutting depth δ of the thin metal plates (1) and (2).
It becomes a continuous wool-like shape with a square or diamond-shaped cross section with dimensions corresponding to If , it will be the ratio of the total plate thickness of each material, so
The thickness of each plate and/or the number of laminated sheets is adjusted arbitrarily to obtain a desired ratio.

In addition, by changing the thickness of each of the metal thin plates (1) (2J), or by making the cutting depths δ of the plurality of blades (4) different even if the plate thickness is the same, the metal fibers (IA
It is also possible to make the width (dimensions of each side in the cross section) of X2A) different by δ.

FIG. 2 is a perspective view of a main part showing a second embodiment of the method of the present invention. Thickness 0
．． A thin metal plate (1) of a desired material cold- or hot-rolled to 05 to 1.0 (the flat side edge is shown by a solid line), and a thin metal plate (2) of a different material (the flat side edge is shown by a solid line). A plurality of laminated thin metal sheets (indicated by broken lines) are laminated and wound, and winding and unwinding are repeated alternately from one reel (5) to the other reel (5) to form the laminated thin metal sheets ( 1) (2J is reciprocated between the two reels (5) while maintaining the required tension, and in the meantime, the side edges of each safe thin plate (1) and (2) are rotated by one or more flat bites. For example, 0.03~Q,
5 +U cutting at a minute depth of cut δ to cut the metal fibers (LA) (
2A) can be obtained at any predetermined mixing ratio.

Further, FIG. 3 is a perspective view of a main part showing a third embodiment of the method of the present invention, in which thin metal plates of different materials and/or thicknesses, for example, about 2 to 5 m in length, are shown by solid lines and broken lines as in the above embodiments. A relatively short plate-like body (6) is formed by laminating a plurality of (1) and (2), and the plate-like body (6) is fixed, for example, on a movable table of a planing machine, and the side of the plate-like body (6) that moves back and forth. The edges are cut with a cutting tool (4) such as one or more flat bits or a rotating knife to form metal fibers (CIA) (2).
A) is obtained.

As described above, in the method of the present invention, each of the thin metal plates (1) and (2) to be laminated may be a coiled body, a long piece of metal, or a short plate-like body, and the blade used to cut it ( 4) may be a fixed type like a cutting tool, a reciprocating type, or a rotating type with multiple blades like a milling cutter. By moving the blade vertically, the side edges can be cut like a normal cutting machine, and different materials and/or thickness can be cut, such as a continuous wool shape, or depending on the type of blade, a shape of arbitrary length or length. It is possible to manufacture the metal fibers by uniformly mixing them in any predetermined ratio, and the fibers can be made of any material depending on the purpose, such as ordinary steel and Nutenrenu steel, as well as titanium, aluminum, copper alloy, etc. All you have to do is choose.

Since the present invention is configured as described above, the process is simple,
Metal fibers of different materials and/or thicknesses can be produced efficiently and inexpensively at any predetermined mixing ratio, and the resulting mixed metal fibers can be used not only for scrubbers but also for various other applications that are expected to develop in the future. It can be used effectively.

[Brief explanation of drawings]

1 to 3 are perspective views of essential parts showing a first embodiment, a second embodiment, and a third embodiment of the method of the present invention, respectively. ■=Thin metal plate, IA: Metal fiber, 2: Thin metal plate, 2A:
Metal fiber, 3: Coiled body, 4: Knife, 5: Reel, 6
:Plate Applicant: Sumitomo Metal Industries, Ltd.

Claims (1)

[Claims] (1) A coiled body or a plate-shaped body is formed by laminating a plurality of thin metal plates of different materials and/or plate thicknesses, and then the end face of the coiled body or the side edge of the plate-shaped body is cut with a knife. A method for producing metal fibers, which comprises cutting to obtain composite metal fibers made of different materials and/or different thicknesses.