CN202887768U - Nanopowder coating bonded metal wire for cables - Google Patents

Abstract

The utility model relates to a nanopowder coating bonded metal wire for cables. The metal wire is formed by stranding a plurality of wires, namely main wires, marginal gap wires and intermediate gap wires, wherein the main wires have circular cross sections; the intermediate gap wires have triangle shaped cross sections and are arranged in the gap positions defined by three adjacent main wires; the marginal gap wires are triangular and are arranged in the gap positions defined by two adjacent marginal main wires; and a layer of nanopowder adheres to the surfaces of the main wires, the marginal gap wires and the intermediate gap wires and is used for bonding the marginal gap wires, the intermediate gap wires and the main wires tightly through sintering. The metal wire has the beneficial effects that the defects that the existing metal wires have gaps and the margins are rugged are overcome and the degree of tightness of the stranded structure and the degree of smoothness of the margin of the metal wire for cables are increased.

Description

The cable metal wire rod of nanometer powder coating bonding

Technical field

The utility model relates to the cable technology field, relates to or rather a kind of cable metal wire rod of nanometer powder coating bonding.

Background technology

Cable with metal wire rod comprise copper cash or aluminum steel normally cross section be circular wire rod, the conductive cores of cable is exactly to be made by the metal wire rod spiral winding of many circles, squeezing action by mould, the multiply metal wire rod is extruded distortion, twists cross section processed and be the strand structure processed of the shapes such as fan-shaped, watt shape, circle.Circular metal wire rod strand is built in together, can there be the space in the middle of the adjacent wire rod, because the space is non-conductive, like this in order to reach satisfactory effective conductive area, the actual cross-sectional area of the strand structure processed of metal wire rod tends to greater than effective conductive area, after the metal wire rod chap, the material usage of the outer jacket that the outside needs, armour and packed layer also increases thereupon, causes the cable chap, become heavy, and then the lifting cable cost, improve logistics cost, increased difficulty of construction.

At the edge of metal wire rod because the cross section of each strand metal wire is circular, so the edge will occur rising and falling irregularly shaped, in high-tension environment for use, the projection at edge causes point discharge easily, causes accident.

In addition, because metal wire rod strand structure processed is to be formed by the mould extruding, the stress that self has expanse, each money paid for shares belongs to the larger sheet resistance of existence between the wire rod, so that the part transmission current is not mobile along the axis direction of cable, but along each strand electric wire internal flow that is spiral strand state processed, the current delivery length of equivalence increases, and resistance dissipates and increases; Near the section that cable blocks, loose situation can occur in an end of the opening of metal wire rod strand structure processed under the effect of swelling stress simultaneously.

This shows that above-mentioned existing cable still has many defectives with metal wire rod strand structure processed, and demands urgently being improved.

Because the defective that above-mentioned existing cable exists with metal wire rod strand structure processed, the design people is based on being engaged in this type of product design manufacturing for many years, amassing has abundant practical experience and professional knowledge, positive research and innovation in addition, in the hope of founding a kind of cable metal wire rod of nanometer powder coating bonding, can improve the general on the market molding structure of existing cable metal wire rod, make it have more competitiveness.Through constantly research, design, and after repeatedly studying sample and improvement, finally create the utility model that has practical value.

Summary of the invention

Technical problem underlying to be solved in the utility model is, overcome the defective that existing cable exists with metal wire rod strand structure processed, and the cable metal wire rod that provides a kind of nanometer powder coating to bond, overcome existing cable and had the up-and-down defective in space and edge with metal wire rod, improved cable twists structure processed with metal wire rod tightness degree and the smooth of the edge degree.

The utility model solves its technical problem underlying and realizes by the following technical solutions.Cable metal wire rod according to the nanometer powder coating bonding that the utility model proposes, formed by strand wire strand system, the cable metal wire rod of nanometer powder coating bonding is by electric main, edge voids electric wire and intermediate gaps electric wire strand system form, the electric main cross section is rounded, the intermediate gaps wire cross-section is triangular in shape, the intermediate gaps electric wire is positioned at the position, space of adjacent three electric mains, the edge voids electric wire is triangular in shape, the edge voids electric wire is positioned at the position, space of the electric main of adjacent two edges edge, electric main, surface attachment one deck nanometer powder of edge voids electric wire and intermediate gaps electric wire, by sintering, nanometer powder is with the edge voids electric wire, intermediate gaps electric wire and electric main close adhesion.

The cable metal wire rod of nanometer powder coating bonding described in the utility model, the beneficial effect of its generation is: the effective conductive area that has effectively improved metal wire rod strand structure processed, effectively improve the tightness degree of metal wire rod strand structure processed, effectively improved the smooth of the edge degree of metal wire rod strand structure processed.

Description of drawings

Fig. 1 is the schematic cross-section of embodiment of the present utility model.

Description of reference numerals: 1, electric main; 2, intermediate gaps electric wire; 3, edge voids electric wire; 4, nanometer powder.

Embodiment

Below in conjunction with accompanying drawing and preferred embodiment, to according to its embodiment, structure, feature and the effect thereof that the utility model proposes, be described in detail as follows.

See also shown in Figure 1, the cable metal wire rod of nanometer powder coating bonding of the present utility model, formed by strand wire strand system, the cable metal wire rod of nanometer powder coating bonding is by electric main 1, edge voids electric wire 3 and intermediate gaps electric wire 2 strand systems form, electric main 1 cross section is rounded, intermediate gaps electric wire 2 cross sections are triangular in shape, intermediate gaps electric wire 2 is positioned at the position, space of adjacent three electric mains 1, edge voids electric wire 3 is triangular in shape, edge voids electric wire 3 is positioned at the position, space of the electric main 1 of adjacent two edges edge, electric main 1, surface attachment one deck nanometer powder 4 of edge voids electric wire 3 and intermediate gaps electric wire 2, by sintering, nanometer powder 4 is with edge voids electric wire 3, intermediate gaps electric wire 2 and electric main 1 close adhesion.In metal wire rod strand process processed, corresponding deformation can occur in each strand electric wire, so that further reduce in the space between each strand material.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does.

Claims (1)

1. the cable metal wire rod of nanometer powder coating bonding, formed by strand wire strand system, it is characterized in that: the cable metal wire rod of described nanometer powder coating bonding is by electric main, edge voids electric wire and intermediate gaps electric wire strand system form, described electric main cross section is rounded, described intermediate gaps wire cross-section is triangular in shape, described intermediate gaps electric wire is positioned at the position, space of adjacent three electric mains, described edge voids electric wire is triangular in shape, described edge voids electric wire is positioned at the position, space of the electric main of adjacent two edges edge, described electric main, surface attachment one deck nanometer powder of edge voids electric wire and intermediate gaps electric wire, by sintering, nanometer powder is with the edge voids electric wire, intermediate gaps electric wire and electric main close adhesion.

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