Abstract: A fibrous anisotropic permanent magnet is disclosed comprising fibers composed of an alloy comprising at least one of a rare earth metal selected from Nd, Pr, Dy, Ho, Tb, La, and Ce; Fe or Fe and Co; and B, said fibers having a mean diameter of from 50 to 1,000 .mu.m and exhibiting magnetic anisotropy. The fibrous anisotropy permanent magnet is prepared by extruding a molten alloy comprising at least one of Nd, Pr, Dy, Ho, Tb, La, and Ce; Fe or Fe and Co; and B in an oil to quench-solidify the molten alloy into a fibrous form.Since the fibrous magnet exhibits excellent anisotropic magnetic characteristics in the lengthwise direction of the fiber axis in the quench-solidified state, the magnet is particularly useful as a magnetic powder material for an anisotropic bond magnet.

Abstract: A fibrous anisotropic permanent magnet is disclosed comprising fibers composed of an alloy comprising at least one of a rare earth metal selected from Nd, Pr, Dy, Ho, Tb, La, and Ce; Fe or Fe and Co; and B, said fibers having a mean diameter of from 50 to 1,000 .mu.m and exhibiting magnetic anisotropy. The fibrous anisotropy permanent magnet is prepared by extruding a molten alloy comprising at least one of Nd, Pr, Dy, Ho, Tb, La, and Ce; Fe or Fe and Co; and B in an oil to quench-solidify the molten alloy into a fibrous form.Since the fibrous magnet exhibits excellent anisotropic magnetic characteristics in the lengthwise direction of the fiber axis in the quench-solidified state, the magnet is particularly useful as a magnetic powder material for an anisotropic bond magnet.

Abstract: A fine amorphous metal wire with a circular cross section that has improved toughness and a composition represented by the formula:Fe.sub.a Co.sub.b Cr.sub.c Si.sub.x Bywhereina+b is from about 53 to 80 atomic %;c is from about 3 to 20 atomic %;x is from about 5 to 15 atomic %; andy is from about 5 to 15 atomic %;provided that ##EQU1## is in a range from about c.times.0.025+0.25 to c.times.0.012+0.73; and x+y is from about 17 to 27 atomic %. Having improved toughness, this fine amorphous metal wire can be drawn or otherwise worked efficiently on an industrial scale with minimum breakage. In addition, this wire has good fatigue characteristics and high corrosion resistance, as well as high tensile breaking strengths, high heat resistance and superior electromagnetic performance. Therefore, the wire is very useful in a broad range of applications including a variety of mechanical members, industrial reinforcements, and electromagnetic materials.

Abstract: An amorphous Co-based metal filament having a circular cross-section made of an alloy composed mainly of Co-Si-B or Co-Me-Si-B (wherein Me is at least one metal selected from the group consisting of Fe, Ni, Cr, Ta, Nb, V, Mo, Mn, W and Zr). This filament is produced by jetting the above alloy into a rotating member containing therein a cooling liquid through a spinning nozzle having a hole diameter which is determined according to the amorphous metal-forming ability (critical thickness to form an amorphous phase) to thereby cool-solidify the jetted molten alloy and form a filament, and then winding the filament continuously on the inner walls of the rotating member by the rotary centrifugal force thereof. This amorphous metal filament is corrosion resistant, is tough and has high electromagnetic characteristics, and is very useful as industrial materials, such as electric and electronic parts, composite materials and fibrous materials.

Abstract: Amorphous metal filaments having a substantially circular cross-section comprising an alloy containing Fe as a main component, and a process for producing such amorphous metal filaments, are described; the process comprises jetting a molten alloy having amorphism forming ability into a revolving body containing a cooling liquid from a spinning nozzle to form a solidified filament by cooling, and continuously winding the filament on the inner wall of said revolving body by means of the centrifugal force of said revolving body, wherein the circumferential rate of revolution of said revolving body is equal to or higher than the rate of jetting of molten metal from the spinning nozzle. These metal filaments have good corrosion resistance, toughness, and high magnetic permeability and are very useful in various industrial applications, such as electric and electronic parts, materials for reinforcement, and fiber materials.

Abstract: A method of producing a thin metal wire having a circular cross section is disclosed. The wire is produced by providing a molten metal within an extruding device having a nozzle therein. A strip of liquid coolant in motion at a speed of 200 m/min or more is then provided. The molten metal is extruded into the strip of liquid coolant in order to cool and solidify the metal and form the thin metal wire. A high quality thin metal wire is obtained by precisely adjusting the speed of the strip of liquid coolant relative to the speed of the extruded molten metal as well as the angle at which the molten metal is extruded into the liquid coolant strip. The method is capable of economically and continuously producing a high quality thin metal wire on a commercial scale. The method is effective in directly producing a thin metal wire having an amorphous, a nonequilibrium crystalline, or microcrystalline structure.

Abstract: A thin metal wire having a circular cross section is produced by a method which comprises spouting molten metal through a spinning nozzle and bringing the resultant flow of molten metal into contact with a layer of liquid cooling medium formed on a grooved conveyor belt in motion thereby quenching and solidifying the flow of molten metal. This method is capable of continuously producing a thin metal wire of high quality economically on a commercial scale. It is highly effective in directly producing a thin metal wire having an amorphous, non-equilibrium crystalline, or microcrystalline structure.

Abstract: An iron-base amorphous alloy is described, having improved fatigue and toughness characteristics consisting essentially of from 6 to 16 atom % Si, from 7.5 to 16 atom % B, and from 2 to 9 atom % Cr, provided that the composition ranges of Si, B, and Cr are within the quadrangles defined by a-b-c-d of FIG. 1, and e.sub.1 -f.sub.1 -g.sub.1 -h.sub.1 of FIG. 2, and the balance being substantially Fe. In addition to improved fatigue and toughness characteristics, the amorphous alloy has excellent tensile break strength, heat resistance, corrosion resistance and electromagnetic properties, and is therefore very useful for industrial reinforcements and electromagnetic materials.

Abstract: An amorphous Co-based metal filament having a circular cross-section made of an alloy composed mainly of Co-Si-B or Co-Me-Si-B (wherein Me is at least one metal selected from the group consisting of Fe, Ni, Cr, Ta, Nb, V, Mo, Mn, W and Zr). This filament is produced by jetting the above alloy into a rotating member containing therein a cooling liquid through a spinning nozzle having a hole diameter which is determined according to the amorphous metal-forming ability (critical thickness to form an amorphous phase) to thereby cool-solidify the jetted molten alloy and form a filament, and then winding the filament continuously on the inner walls of the rotating member by the rotary centrifugal force thereof. This amorphous metal filament is corrosion resistant, is tough and has high electromagnetic characteristics, and is very useful as industrial materials, such as electric and electronic parts, composite materials and fibrous materials.

Abstract: Amorphous metal filaments having a substantially circular cross-section comprising an alloy containing Fe as a main component, and a process for producing such amorphous metal filaments, are described; the process comprises jetting a molten alloy having amorphism forming ability into a revolving body containing a cooling liquid from a spinning nozzle to form a solidified filament by cooling, and continuously winding the filament on the inner wall of said revolving body by means of the centrifugal force of said revolving body, wherein the circumferential rate of revolution of said revolving body is equal to or higher than the rate of jetting of molten metal from the spinning nozzle. These metal filaments have good corrosion resistance, toughness, and high magnetic permeability and are very useful in various industrial applications, such as electric and electronic parts, materials for reinforcement, and fiber materials.

Abstract: A process for the production of a fine amorphous metallic wire is described, comprising melt-spinning an iron family element base alloy having an amorphous substance-forming ability to obtain a fine amorphous metallic wire, and passing the thus-formed fine amorphous metallic wire through a die so as to draw within an area reduction percentage range of from about 5 to about 90%. The thus-produced fine amorphous metallic wire of the iron family element base system is excellent in heat resistance, corrosion resistance, electromagnetic characteristics, and has excellent mechanical properties, such as breaking strength and a degree of drawing at break. Thus, it is very useful for various industrial materials such as electric and electronic parts, composite materials, and fibrous materials.

Abstract: A filtrating method for removing suspended solids from a liquid by passing the liquid through a layer of filter medium in a magnetic field, the filter medium layer comprising a collection of organic fibers and ferromagnetic metal fibers. Usual suspended solids and relatively large magnetic suspended solids are arrested by the organic fibers, while fine magnetic suspended solids are arrested by the ferromagnetic metal fibers subjected to the action of the magnetic field. The collection of fibers achieves a high filtration efficiency, has outstanding regeneration characteristics, withstands continued use and is therefore very useful as a filter medium.

Abstract: An amorphous iron-based alloy which comprises not more than 25 atom % of Si and 2.5 to 25 atom % of B (providing that the sum of Si and B falls in the range of 15 to 35 atom %), 1.5 to 20 atom % of Cr, 0.2 to 10 atom % of either or both of P and C, and the balance to make up 100 atom % substantially of Fe excels in fatigue property. An amorphous iron-based alloy which contains not more than 30 atom % of at least one element selected from the group consisting of Co, Ni, Ta, Nb, Mo, W, V, Mn, Ti, Al, Cu and Zr in addition to the components making up the aforementioned alloy excels in amorphous texture of forming ability and fatigue property. Since these alloys are also excellent in tensile strength at fracture, thermal resistance, corrosionproofness, and electromagnetic property, they prove highly useful as electromagnetic materials and as reinforcements in various industrial materials.