Abstract:
A metal fiber has a cross section, having a perimeter. The cross section comprises at least a first zone and a second zone, each of these zones providing a part of the perimeter. The first zone is composed of a first metal or metal alloy M1, and the second zone is composed of a second metal or metal alloy M2, for which M1 is different from M2. A method to make such fiber is provided.
Abstract:
A device for producing metal fibers from a metal wire comprises a forming assembly (14) and a cutting assembly (16), said cutting assembly (16) being arranged downstream of said forming assembly (14) in the direction of production, said forming assembly (16) being driven by driving means (58). Said cutting assembly (16) is driven by said driving means (58) and said forming assembly (16) and said cutting assembly (14) are mechanically synchronized.
Abstract:
The present invention relates to an apparatus and a method for producing metal fiber, which can increase production efficiency of metal fiber using a metal plate, simplify manufacturing equipments and a controlling device. The method for producing metal fiber includes steps of: making a frame in a vacuum condition by removing the air; vertically inserting an end of a metal plate between two induction coils arranged horizontally at an interval in the inside of the frame and heating and melting the end of the metal plate with heat generated by the induction coils; gradually moving the metal plate downwardly and bringing the end of the metal plate into contact with blades of a rotary disk, the rotary disk being horizontally mounted at a lower portion of the induction coils in the inside of the frame and rotating in a high speed; and solidifying metal fiber separated by the blades of the rotary disk.
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.
Abstract:
The present invention relates to a method for manufacturing a pipe type fine metal thread and a porous metal as a material for manufacturing an aromatic metal or the like. More particularly, the present invention relates to a method for manufacturing a pipe type fine metal thread and a method for manufacturing a porous metal using the fine metal thread by cutting a metal base into a thin metal disk through a bite such that chips generated from the cutting of the metal base are formed into a pipe type fine metal thread, and pressing and sintering a lump of fibers consisting of the fine metal threads to produce a porous metal, to thereby significantly reduce time and cost for manufacture of fine metal thread and porous metal and obtain a porous metal with extremely high porosity and excellent metal and structural strength. Thus, the amount of infiltration of perfumes and time duration of fragrance are ensured to the maximum degree when producing aromatic metals or the like by infiltrating perfumes into porous metals.
Abstract:
A tool holder assembly (10) and method for intentionally inducing modulation in a machining process. The tool holder assembly is configured for mounting in a tool block (22) on a machining apparatus and includes a tool holder body (20) configured to be secured to the tool block of the machining apparatus, a tool holder (14) mounted on the tool holder body and configured for securing a cutting tool (12) thereto, an a device (24) for imposing a superimposed modulation on the tool holder so as to move the cutting tool relative to the tool holder body and thereby relative to the tool . The tool holder assembly is useful in a process for producing chips having a desired shape and size, and particularly to a method of controllably producing nanocrystalline chips.
Abstract:
The present invention relates to short metal fibers. A set of short metal fibers , with an equivalent diameter ranging from 1 to 150 DOLLAR (m)m, comprises entangled and curved fibers. At least 10 % of the short metal fibers are entangled, whereas the length of the curved fibers is distributed according to a gamma-distribution, having an average length preferably between 10 and 2000 DOLLAR (m)m.
Abstract:
A method for providing coil shaved metal fibers according to the present invention comprises the steps of -providing a metal composite foil, the metal composite foil comprising oat least two metal layers (Lx) for being converted into metal fibers, oeach pair of adjacent metal layers are mutually separated by a sacrificial layer (Sy) provided from a sacrificial metal, each sacrificial layer (Sy) having a first and second surface, whereby for each sacrificial layer, the first surface contacts one of the pair of adjacent metal layers, the second surface is contacting the other of the pair of adjacent metal layers; -coiling said metal composite foil on a shaft thereby providing a metal coil having one free end surface; -rotating the metal coil and cutting the free end surface of the metal coil by means of a cutting tool, thereby providing a bundle of composite fibers; -removing the sacrificial metal of the sacrificial layers from the composite fibers thereby providing a bundle of metal fibers, each metal fiber being obtained from one of the metal layers (Lx).
Abstract:
A temperature resistant material, comprising a temperature resistant matrix and a set of short metal fibers, which characterized in that the set of short metal fibers represents at least 0.5% by weight of the temperature resistant material. The set of short metal fibers has an equivalent diameter D in the range of 1 to 150 mu , and comprising curved fibers and entangled fibers. The curved fibers have an average length L in the range of 10 to 2000 mu .
Abstract:
The invention concerns a steel fibre for reinforcing castable, hardening materials, in particular concrete, the fibre extending substantially along a longitudinal axis and having longitudinal edges which deviate from the rectilinear shape. The invention is characterized in that the steel fibre is formed by a narrow sheet metal strip of uniform thickness (sheet thickness D), the longitudinal edges of this strip, viewed as cutting edges in the sheet plane, each having congruent wave-like shapes shifted parallel to one another and substantially composed of a series of polygons, the width of the parallel shift (b) being such that a continuous rectangular material strip (width d) is produced in the sheet plane between the wave-like longitudinal edges over the entire fibre length (I). The invention further concerns a method of producing this steel fibre.