The method of twisting the end of the wire and the device for its implementation
(57) Abstract:Usage: electrical, instrument and radio-electronic industry, to prepare the wires for installation. The inventive method of twisting the end of the wire is that the beam 1 wire 2 serves in the guide element 3 of the housing 4, bring the Chuck 6 is mounted in a rotating holder 5, capture them protruding end of the wire from the guide element and produce twisting with simultaneous compaction by moving the rotating cage along the end of the wire. Device for twisting the end of the wire supplied with the element 3 in the form of thin partitions with the conical bore 7 and a removable stop 8, the rotating holder 5 with a cut hole 9, which is equipped with a movable spring-loaded collet clamp 6 with faceted body 10. 2 S. p. f-crystals, 5 Il. The invention relates to a process of preparing wires for installation and can be used in the electrical/ instrument engineering and electronic industries.There is a method of preparing tape the wires to a mounting comprising cutting the insulation in the locations of the jumpers along comprobadas is of isolation lived with a specified length remove the insulation from the area each conductor length/ for which there is no raspisanie stranded wires/ produce fluxing and tinning of this section and after removal of the insulation to the desired length of cut jumper .The disadvantage is the complexity of the process because of the repetition of operations. A device for Stripping and twisting lived electrical wiring/ containing a case/ in which you installed the clamping jaws for Stripping and twisting lived with rotation drive/ alignee elements for incision isolation/ located on the spring-loaded levers/ and an electromagnet for radial movement of the jaws and aubigny elements/ at the same time it is equipped with permanent magnets/ installed symmetrically on the lips and on the outer surfaces of the levers against the magnets facing each other with similar poles .The disadvantage is the complexity of the device due to magnets and power.A device for twisting wire bundle/ containing the clamping mechanism and twisted wire sections and the holder placed inside the wire bundle/ turn from the drive mechanism about its axis when the holder has a longitudinal slot and pin/ arranged perpendicularly to the axis of the casing and designed to separate the wire bundle into two parts and the clamping mechanism consists of two parts on both sides .The downside of it is if there is a loop on the server is the manufacture of stranded all lived/ based on the twist and seal on twisting machine/ when this seal veins produced simultaneously with the twisting by running its rotating balls/ prisoners in the cage tapered cross-section .The disadvantage is the use of sophisticated devices in the process.The closest solution to the invention to the technical essence is a tool for removing insulation from electrical cables comprising a housing/ mounted on the arm/ knives and locking mechanism cable/ when this case is installed on the handle for rotation around its axis and the clamping mechanism of the cable is made in the form of a collet clamp is installed in the handle and provided with a knob clamping forces .The disadvantage is the complexity of the device/ switch wires and removing only isolation.The aim of the invention is the ease of use and installation and torsion beam wires electrical wires while simplifying the structure.This is achieved by the fact that the method of twisting the end of the wire/ based on the twist and seal/ includes/ that the wire bundle is served in the guide housing for feeding wire/ grab the protruding end of the guide element housing rotating clip/ produce twisting the end of the wire with simultaneous compaction by moving the rotating cage along conc the us and the clamping mechanism of the wire in the form of a collet clamp provided with a guiding element in the form of thin walls with a conical bore and a removable stop/ rotating clip with cut hole/ which has a movable spring-loaded collet clamp with faceted body.In Fig.1 shows the output end of the wire to twist; Fig.2 - position twist; Fig.3 - the initial position of the twist seal; Fig.4 - the final position of the twist seal; Fig.5 - cross section a-a in Fig.1.The method of twisting the end of the wire is as follows.Fluff the beam 1 wire 2 serves in the guide element 3 of the housing 4 for feeding wire/ grab the protruding end of the wire 2 of the guide element 3 of the housing 4 rotating holder 5/ produce twisting the end of the wire 2 with simultaneous compaction by moving the rotating holder 5 along the end of the wire or without it.Device for twisting the end of the wire includes a housing 4 and the clamping mechanism of the wire 2 in the form of a collet clamp 6. It is provided with a guiding element 3 in the form of thin partitions with the conical bore 7 and a removable stop 8/ rotating holder 5 with a cut hole 9/ which has a movable spring-loaded collet clamp with 6 faceted case 10/ freely removable from the hole 9.A device for twisting the ends of the wire are as follows.In the tapered hole 7 by a thin septum is inserted fluff is vienam a spring-loaded collet 6/ decompressing the button 11. Then wire 2 held still/ and the Chuck 6 by a faceted body 10 and cut holes 9 is rotated together with the holder 5/ spinning the end of 1 wire 2. While moving the Chuck 6 can be moved along the end of the wire 2/ carrying the seal of the beam 1. When damage to the Chuck easily replaceable. 1. The method of twisting the end of the wire, in which a bunch of wires twisted and compacted, characterized in that, for ease of use, ease of installation and twisting of the bundle of electric wires while simplifying the structure, the bundle of electric wires before stranding served in the guide body, down the Chuck mounted in a rotating cage, capture them protruding from the guide element end of the wire and produce twisting with simultaneous compaction by moving a rotating collet clamp along the end of the wire.2. Device for twisting the end of the wire, comprising a housing, a rotating ring and the clamping mechanism of the wire in the form of a spring-loaded collet clamp installed in the hole of the rotating cage, characterized in that it is provided with a guiding element in the form of what about the clip, installed in this slot cut.
FIELD: electrical engineering; producing long conductors around superconducting compounds.
SUBSTANCE: proposed method includes formation of single-core billet by filling silver sheath with bismuth ceramic powder; deformation of this single-core billet to desired size by no-heating drawing at deformation degree per pass of 0.5 - 20%; cutting of deformed billet into measured parts; assembly of single-core billet by disposing desired quantity of measured parts of deformed single-core billet in silver sheath of multicore billet; extrusion of multicore billet at temperature ranging between 100 and 200 °C and at drawing coefficient of 4 to 30; air rolling without heating at deformation degree per pass of 1 - 50%; thermomechanical treatment including several heat-treatment stages at temperature of 830 - 860 °C for time sufficient to obtain phase of desired composition and structure in ceramic core with intermediate deformations between heat-treatment stages at deformation degree per pass of 5 - 30 %.
EFFECT: enhanced critical current density due to sequential packing of ceramic core; facilitated manufacture.
1 cl, 1 ex
FIELD: production of long-measuring composite wires based on high-temperature superconducting compounds.
SUBSTANCE: proposed method includes formation of multiconductor billet by filling silver sheath with bismuth ceramic powder, deformation of multiconductor billet obtained to desired size by drawing without heating at deformation degree per pass ranging between 0.5 and 20%, cutting of deformed billet into metered sections, assembly of multiconductor billet by disposing desired number of metered parts of deformed multiconductor billet in sheath made of reinforced silver based alloy, extrusion of multiconductor billet at temperature ranging between 130 and 280 °C and drawing coefficient of 4 to 30, rolling in the open without heating at deformation ratio per pass between 1 and 50%, and thermomechanical treatment under preset conditions. Sequential compression of ceramic core raises density of critical current.
EFFECT: improved geometry of conductors, enhanced wire mechanical properties and resistance, reduced heat conduction of sheath.
FIELD: producing long-measuring composite wires based on high-temperature superconducting compounds.
SUBSTANCE: proposed method includes formation of multiconductor billet by filling silver based reinforced alloy sheath with bismuth ceramic powder, deformation of multiconductor billet obtained to desired size by drawing without heating at deformation degree per pass ranging between 0.5 and 20%, assembly of multiconductor billet by disposing desired number of metered parts of deformed multiconductor billet in mentioned sheath, extrusion of multiconductor billet at temperature of 150 to 300 °C and drawing coefficient of 4 to 30, rolling in the open without heating at deformation degree per pass of 1 to 50%, and thermomechanical treatment under preset conditions. Ceramic core is sequentially compressed to enhance critical current density.
EFFECT: improved conductor geometry, ceramic-to-sheath interface, and ceramic core texture, enhanced wire mechanical properties and sheath resistance, reduced heat conductance of sheath.
FIELD: electrical and mechanical engineering;; manufacture of electric fuses and igniters.
SUBSTANCE: proposed automatic machine has two wire supply coils, straightening unit, drive, wire spreader, rotary case with wire cutting and cleaning, longitudinal and transversal winding, and finished bundle dumping units, numeric-control device incorporating kinematically intercoupled quadrant gear with sector templates mounted coaxially for engaging rotary case, as well as disk with sector templates that controls wire spreader and quadrant gear stopping mechanism; in addition, it is provided with rotary case speed sensor, counter, solenoid, turn-on key on sector disk shaft which are engageable so that as soon as desired speed is gained, counter turns on solenoid and the latter releases turn-on key and disk carrying sector templates makes one revolution. Proposed machine makes it possible to produce wire bundles of 0.3 to 5 m in length.
EFFECT: enlarged stock-list of wire bundles produced.
1 cl, 2 dwg
SUBSTANCE: proposed method involves filling of cylindrical bag with auxiliary parts which are then removed from bag and replaced by bar assemblies placed in definite sequence affording maximal filling density; sectional area of each auxiliary member differs from that of its substituting bar; central regular-hexagon shaped auxiliary member has face width A1 found from expression where a is hexagonal bar width, M is number of bars in diametric direction; second row around central member is alternately filled with auxiliary members of which three ones are regular-hexagon shaped members having face width A2 found from expression and three other hexagon-shaped auxiliary members have face width found from set of expressions all next rows are alternately filled with auxiliary hexagon-shaped members whose face width is found from set of expressions and remaining free space between hexagon-shaped auxiliary members, as well as cylindrical bags are filled with additional auxiliary members whose cross-sectional area provides for maximal filling of bags.
EFFECT: facilitated procedure, ability of filling billet with thousands of bars during its single assembly process.
3 cl, 7 dwg
FIELD: electrical engineering.
SUBSTANCE: proposed superconducting device has superconducting oxide wire made of superconducting oxide material whose post-sintering density is 93% and more, best 95% and more, or most preferably 99% or more, which is attained by heat treatment of wire in enhanced pressure environment of at least 1 MPa and below 50 MPa. Heat treatment of wire at enhanced pressure prevents formation of gaps and bubbles. Stable superconducting oxide phase of Bi2223 is formed in the process.
EFFECT: enhanced critical current density of superconducting device and superconducting cable.
6 cl, 27 dwg, 4 tbl, 6 ex
FIELD: superconducting wire manufacture.
SUBSTANCE: proposed method for producing superconducting wire includes production of wire material in the form of source powdered metal-covered and oxide-coated superconducting material and heat treatment of wire material obtained in the process in high-pressure environment with total pressure maintained at 1 MPa or higher and below 50 MPa in the course of heat treatment; pressure rise is started with temperature at which 0.2% conventional yield point of metal becomes lower than total pressure in the course of heat treatment. Such procedure makes it possible to eliminate voids between oxide-coated superconducting material crystals and bulging of oxide-coated superconducting wire material, as well as to easily control oxygen partial pressure during heat treatment.
EFFECT: enhanced critical current density in wire material obtained.
22 cl, 27 dwg, 3 tbl
FIELD: electric cable manufacture.
SUBSTANCE: proposed method includes following procedures: (a) conductor feeding at predetermined feed rate; (b) extrusion of thermoplastic insulating layer in position radially external with respect to conductor; (c) cooling down of foamed insulating layer; (d) production of circumferentially closed metal shield about mentioned extruded insulating layer. Novelty is that procedures are conducted uninterruptedly, that is, time passed from end of cooling procedure to initiation of shield formation is inversely proportional to conductor feed rate.
EFFECT: reduced manufacturing time, enhanced mechanical strength of cable.
19 cl, 5 dwg, 2 tbl, 1 ex
FIELD: cable industry; production of polymeric items.
SUBSTANCE: proposed device has frequency changer, high-voltage transformer, gas-discharge reactor, photoelectronic multiplier with display unit, polarized degree-of-stitch and its uniformity indicator, and reactor gas mixture pressure build-up and maintenance unit. Sectionalized gas reactor of type depending on cable thickness is used, each reactor section having variable-diameter quartz glass tube; these tubes are installed in tandem and cable conductor covered with insulation applied by extrusion is passed through them. Compressed inert gas (nitrogen or argon) is supplied to tube of each reactor from gas cylinder at pressure of 10 at. Attached to external wall of quartz tube are conductive metal electrodes and industrial- or high-frequency (50, 150, or 300 Hz) AC voltage of 10 to 70 kV is applied across them. Metal current-carrying conductor of cable functions as gas-reactor central grounded electrode.
EFFECT: facilitated procedure and enhanced safety of stitching cable polyethylene and polypropylene using industrial method.
1 cl, 3 dwg
SUBSTANCE: invention is related to the method of manufacturing superconducting wire, in particular, to the method of manufacturing superconducting wire with high and uniform working characteristics. Method includes stage (S3) of wire dragging in the form of metal-clad powder of superconducting material, stage (S8) of primary rolling of multiple-strand wire after stage (S3) of wire dragging and stage (S10) of primary caking of multiple-strand wire after stage (S8) of primary rolling. At least, between stage (S3) of wire dragging and stage (S8) of primary rolling or between stage (S8) of primary rolling and stage (S10) of primary caking the stages (S4, S7, S9) are stipulated for keeping of metal-clad wire and multiple-strand wire or only multiple-strand wire in reduced pressure atmosphere. Because of this, the superconducting wire with high and uniform working characteristics will be received, which is the technical result of the invention.
EFFECT: manufacturing of superconducting wire with high and uniform working characteristics.
11 cl, 8 dwg, 3 tbl, 3 ex