CN201017711Y

CN201017711Y - Aluminium covered with copper electric wire and cable

Info

Publication number: CN201017711Y
Application number: CNU2007200111211U
Authority: CN
Inventors: 谢洪善; 王素彦
Original assignee: DALIAN SHENTE CABLE CO LTD
Current assignee: DALIAN SHENTE CABLE CO LTD
Priority date: 2007-03-14
Filing date: 2007-03-14
Publication date: 2008-02-06
Anticipated expiration: 2017-03-14

Abstract

The utility model relates to a copper-clad aluminium core electric wire cable, which comprises a copper-clad aluminium core electric conduction wire core. The copper-clad aluminium core electric conduction wire core is that a high-quality copper strip is homocentrically clad on the outer surface of an aluminium rod wire core, and a metallurgy combined compound layer among atoms is formed between the copper strip and the aluminium rod wire core. The utility model also comprises a silicone rubber insulating layer and an acrylonitrile-butadiene sheath layer. As a novel conductor material, the copper-clad aluminium core fully combines the respective characteristics of a copper and an aluminium, thus the applied default of a copper conductor and an aluminium conductor on the wire and cable engineering is effectively made up, to make the utility model not only have the well electrical conductivity of the copper conductor and the high anti-pull performance, but also be easy to weld, and have the low-density and the light weight. At the same time, the utility model has the more flexible characteristic than the copper, as the weight is light, the labor intensity of the on-site constructor is greatly lightened, and the working efficiency is improved. And the insulation design is more advanced and reliable, and the process is more scientific and reasonable. The good performance price ration, and the wide applicability and durability make the market prospect of the utility model favorable.

Description

Aluminum core cable and line covered by copper

Technical field

The utility model relates to electric wire, relates in particular to a kind of aluminum core cable and line covered by copper.

Background technology

The conductor that existing electric wire adopted mostly is the fine copper conductor wire core of multicore or single core softness, and insulating barrier mostly is SE4 type neoprene, polyvinyl chloride or other suitable synthetic elastomer composite materials, and cover layer constitutes the double sheath of insulation.

As everyone knows, because the density of pure cu conductor is big, cost is high, be difficult for moving; Aluminium conductor then exists conductance low, and welding performance is poor, defectives such as the easy oxidation in surface.

And its long-term working temperature that allows is restricted its scope of application below 60 ℃.When high-temp combustion, can discharge unpleasant toxic gas, contaminated environment.

Summary of the invention

In view of existing in prior technology the problems referred to above, the utility model is intended to disclose that a kind of cost performance is higher, applicability aluminum core cable and line covered by copper widely.

Technical solution of the present utility model is achieved in that

A kind of aluminum core cable and line covered by copper, it is characterized in that it comprises the copper-covered aluminum-core conductor wire core, described copper-covered aluminum-core conductor wire core is at concentric high-quality copper strips, the composite bed of metallurgical binding between the formation atom between copper strips and the aluminium bar core of coating of the outer surface of aluminium bar core.

Described aluminum core cable and line covered by copper also comprises silicone rubber insulation layer.This silicon rubber insulation material has excellent hot property, electric property, and fire resistance does not particularly have toxic gas during high-temp combustion and emits the SiO of generation ₂Layer still invests on the conductor wire core, keeps the respective performances of cable.But and make the cable long-term work at-60 ℃～+ 180 ℃.

Described aluminum core cable and line covered by copper also comprises the fine restrictive coating of fourth.Abominable for environment for use; the cable of complicated condition; as welding machine cable; not only require insulation, certain thermal endurance is arranged, also require tear-proof, resistance to wear etc.; adopt the fine sheath of fourth; can reach the effect of protection silicone rubber insulation layer, can effectively utilize simultaneously the fine softness of fourth, waterproof, advantage such as wear-resisting, corrosion-resistant again, thereby play the effect and the effect of protection effectively.

Compared with prior art, the beneficial effects of the utility model are conspicuous: copper-covered aluminum-core is as the novel conductor material, fully combine the characteristics separately of copper and aluminium, remedied the defective that copper, aluminium conductor are used effectively on the electric wire engineering, the satisfactory electrical conductivity that had both had copper conductor, high tensile, and easily welding, density are little, in light weight.Also have the characteristic more pliable and tougher simultaneously,, also alleviated site operation personnel's labour intensity greatly, improved operating efficiency because it is in light weight than copper.And its insulating Design is more advanced, reliable, and technology is more scientific and reasonable.The cost performance that it is good, extensive applicability and durability make its market prospects extremely good.

Description of drawings

3 in the utility model accompanying drawing, wherein

Fig. 1 is the structural representation of embodiment 3 described cables;

Fig. 2 is the process chart of embodiment 1 described cable;

Fig. 3 is the process chart of

embodiment

2,3 described cables;

Among the figure, 1, copper-covered aluminum-core conductor wire core 2, band separator 3, silicone rubber insulation layer 4, the fine restrictive coating of fourth.

Embodiment

Embodiment 1: copper-covered aluminum-core polyvinyl chloride unjacked cable

It is conductor that described cable adopts the copper cover aluminum core, insulating barrier is a polyvinyl chloride, its copper-covered aluminum-core is as main material with copper cover aluminum, adopt advanced clad welded manufacturing technology, high-quality copper strips is coated on one heart the outer surface of aluminium bar core, and make the firm interatomic metallurgical binding of formation between copper layer and the aluminium bar core, make two kinds of different metal materials be combined into indivisible integral body.

The performance index of copper-covered aluminum-core conductor conform to fine copper, and demonstrated fully the advantage of copper-covered aluminum-core, the good electric conductivity, the high tensile that not only have copper, and easily welding, density is little, cable is in light weight, be convenient to lay, under the prerequisite of guaranteed performance, cost reduces greatly, for country has saved a large amount of copper resources.

Embodiment 2: the copper-covered aluminum-core plastic insulation control cable that sheath is arranged

Different with the structure of embodiment 1 be in, described cable has the restrictive coating of polyvinyl chloride.

Its technological process as shown in Figure 2.

The conductor material that traditional copper core plastic insulation control cable adopts is a copper core conductor wire core.The insulation of cable and sheath material are polyvinyl chloride.The rated voltage Uo/U of cable is 450/750V; The long-term permission working temperature of cable conductor is 70 ℃; The cross section 0.5-10mm of cable ², the core of cable is counted the 2-61 core, because its core number is many, conductor material density is big, so cable is heavy, is difficult for laying.

Copper-covered aluminum-core described in the present embodiment is as main material with copper cover aluminum, adopt advanced clad welded manufacturing technology, high-quality copper strips is coated on one heart the outer surface of aluminium bar core, and make the firm interatomic metallurgical binding of formation between copper layer and the aluminium bar core, make two kinds of different metal materials be combined into indivisible integral body.

Embodiment 3: the light-duty welding machine cable of copper-covered aluminum-core

The light-duty welding machine cable of described copper-covered aluminum-core, replacing the fine copper core with copper-covered aluminum-core is conductor; Wrapped one deck polyester belt or non-hygroscopic insulating tape are as separator outside conductor; Make insulating material with silicon rubber; Make sheath with the fine material of fourth and replace natural neoprene sheath.Its planar structure schematic diagram as shown in Figure 1.

Described copper-covered aluminum-core adopts advanced clad welded manufacturing technology, high-quality copper strips is coated on one heart the outer surface of aluminium bar core, and make the firm interatomic metallurgical binding of formation between copper layer and the aluminium bar core, make two kinds of different metal materials be combined into indivisible integral body.As a kind of novel conductor material, it has made full use of the characteristics separately of copper and aluminium, has remedied the shortcoming that copper, aluminium conductor are used on the electric wire engineering effectively: big as pure cu conductor density, cost is high, be difficult for to move, the aluminium conductor conductance is low, welding performance is poor, the easy oxidation in surface etc.And copper clad aluminum conductor not only has the excellent conductive performance of copper, high tensile, and than the more pliable and tougher characteristic of copper, and easily welding, density are little, in light weight, so alleviated site operation personnel's labour intensity greatly.

Described separator adopts nonwoven fabrics, when guaranteeing that cable is crooked when flexibility and insulative pricking electrically.

Described silicone rubber insulation layer has excellent hot property, electric property, fire resistance, does not particularly have toxic gas during high-temp combustion and emits the SiO of generation ₂Layer still invests on the conductor wire core, keeps the insulation property and the energising performance of cable.Guarantee that simultaneously but the cable long-term work is at-60 ℃～+ 180 ℃; And the long-term permission working temperature of traditional elastomeric material and other insulating material only is below 60 ℃.Because the raising of cable temperature resistant grade makes that the continuous usability of cable has also obtained improving greatly, continuous welding efficient can increase to more than 2 times.

Because welding machine cable environment for use complicated condition not only requires insulation that certain thermal endurance, also demanding tear resistance and high-wearing feature are arranged.Adopt the fine sheath of fourth, can reach above-mentioned effect, thus the insulation effect of better protection silicon rubber.Effectively utilize fine softness, waterproof, wear-resisting, the decay resistance of fourth simultaneously, more effectively reached protection effect.

Claims

1. aluminum core cable and line covered by copper, it is characterized in that it comprises the copper-covered aluminum-core conductor wire core, described copper-covered aluminum-core conductor wire core is at concentric high-quality copper strips, the composite bed of metallurgical binding between the formation atom between copper strips and the aluminium bar core of coating of the outer surface of aluminium bar core.

2. aluminum core cable and line covered by copper according to claim 1 is characterized in that it also comprises silicone rubber insulation layer.

3. aluminum core cable and line covered by copper according to claim 1 and 2 is characterized in that it also comprises the fine restrictive coating of fourth.