Abstract:
A process and system for controllable production of continuous lengths of microwire having a core covered by a glass coating are provided. According to the method of the invention, a glass tubing is loaded with a core material. Thereafter, the process includes the step of heating the tubing containing the core material for melting thereof, softening a tip of the glass tubing and forming a drop of the core material in the molten state surrounded by an outer glass shell. During the process, the gas is evacuated from the glass tubing in order to control elevation of the drop. The method includes drawing the heated outer glass shell into a continuous microwire filament and stabilizing the temperature and mass of the drop during the process. Accordingly, the system includes a suitable glass feeder mechanism, a rod feeder mechanism, a furnace configured for forming a drop of the core material in the molten state surrounded by an outer glass shell, controllable vacuum and cooling devices and a receiver section for receiving the microwire obtained after the cooling. The system also includes a controller and sensing means configured for producing signals representative of the gas pressure in the tubing, temperature temperature of the drop, the speed of the microwire, the value of the microwire diameter, the value of the spool diameter and other relevant parameters.
Abstract:
A system for generating glass-coating microwires that can particularly apply a uniform cooling to a glass tube filled with molten metal inserted into a tank including a cooling liquid. The uniform allows the formation of a glass-coated microwire with a non-distorted and uniform glass coating.
Abstract:
A glass-coated microwire includes a metal wire coated with a glass. The metal wire can contain, in weight %, 20 - 25% Bi, 6 - 12% Sn, 4 - 8 % In, 3 - 5% Cu, 0.6 - 1.5% Si, 0.05 - 1.2% Ce, and a balance of Pb. The glass coating can contain, in mol. %, 12 - 15% SrO, 10 - 12% B 2 O 3 , 1 - 3% Al 2 O 3 , 5 - 15% SiO 2 , 1 - 3% ZnO, 0.5 - 1.5% Li 2 O, 2 - 5% SnO, 2 - 8% K 2 O, and a balance of PbO. The glass-coated microwire provides improved shielding against X-ray radiation.
Abstract:
An alloy, which can be used in a microwire, contains 26 to 52 weight% Fe; 26 to 52 weight% Co; 3.0 to 38.0 weight% Ni; at least one selected from the group consisting of 1.0 to 8.0 weight% V, 1.0 to 8.0 weight% Cr, 1.0 to 8.0 weight% Zr, 1.0 to 8.0 weight% Dy and 1.0 to 8.0 weight% Nb; at least one selected from the group consisting of 2.0 to 8.3 weight% Si and 2.0 to 8.3 weight% B; and at least one selected from the group consisting of 0.2 to 1.6 weight % Ce, 0.2 to 1.6 weight % La and 0.2 to 1.6 weight % Y. When cast in a microwire, the alloy can be substantially amorphous.
Abstract:
A tag for use in item authentication is presented. The tag is configured as a clip having two integral clip flaps shiftable from their normally open extended position to a closed, folded position to thereby clamp a thin material of the item between the closed clip flaps. The flaps are formed with a locking mechanism, such that after the mechanism has been locked, opening thereof without breaking is prevented. The tag carries a machine readable unit allowing the tag identification.
Abstract:
A cooling device for an element such as a microprocessor in a computer, and a process for manufacturing the cooling device. The cooling device provides an effective structure of cooling a microprocessor by providing a metallic filler layer and a metal plate layer spreading out heat generated from the microprocessor, and thereby effectively thermally conducting heat away from the microprocessor. Further, a semiconductor thermoelectric module can be utilized to further cool the microprocessor.
Abstract:
An inductive component includes a core 3 and the core contains at least one winding of coated ferromagnetic wire 31, wound in a first direction. The coated ferromaretic wire 31 includes a dielectrically resistive coating, for example a glass coating, provided around a ferromaretic center 312 having a substantially round cross-section. The inductive component also includes a signal conductor 2 wound around at least a part of the core 3 in a second direction that is different than the first direction. In one embodiment, the dielectrically resistive coating is a glass coating provided around die ferromagnetic center 312 in the coated ferromagnetic wire 31 wound to form the core 3, and the signal conductor 2 is wound perpendicular to the coated ferromagnetic wire 31 windings in the core 3.
Abstract:
An apparatus for producing a glass-coated wire, the apparatus comprising at least one heating device adapted to, independently, heat a core material to a melting temperature thereof and heat a glass material to a drawing temperature thereof.
Abstract:
A novel process for preparing (2beta,3alpha,5alpha,16alpha,17beta)-17-acetoxy-3-hydroxy-2-(4-morpholinyl)-16-(1-pyrrolidinyl) androstane, a known intermediate in the synthesis of the skeletal muscle relaxant rocuronium bromide, is disclosed.
Abstract:
An inductive coupler for vehicles, comprising a first half (1) and a second half (2) which may be coupled to each other to transfer electrical energy through an alternating magnetic flux (3) therebetween. The first half contains a primary coil (17) for generating said flux, and the second half contains a secondary coil (27) for generating an electrical voltage derived from said flux. An electrical coupler for vehicles, comprising a first half and a second half which may be coupled to each other to transfer electrical energy through ohmic contacts therebetween. The first half contains a first contact plate (54), and the second half contains the corresponding second contact plate (64). The connector also includes means for attaching the first half to the second half such as to achieve ohmic contacts therebetween.