CN2924731Y

CN2924731Y - Copper-clad aluminiur wire cable

Info

Publication number: CN2924731Y
Application number: CNU2006200914808U
Authority: CN
Inventors: 丁俊阳; 魏谡; 葛连彬; 葛连勋
Original assignee: DALIAN JISU METAL COMPOUND MATERIALS Co Ltd
Current assignee: DALIAN JISU METAL COMPOUND MATERIALS Co Ltd
Priority date: 2006-06-07
Filing date: 2006-06-07
Publication date: 2007-07-18
Anticipated expiration: 2016-06-07

Abstract

The utility model uses copper to wrap aluminum as the conductive cable core, that is, the inner core is the aluminum line while the outer layer is wrapped by a layer of tube-like copper. The conductive cable core can be made of two wires (or more than two wires) that either parallel or twist each other from the conductor of copper wrapping aluminum. The outer layer of the conductive core is wrapped by a layer of insulated material such as polyvinyl chloride (PVC), polythene, cross-linked polyethylene, and rubber. Between the two copper wrapping aluminum conductor wires (or more than two wires) that may be parallel or twist each other, a layer of insulated material may be needed. Such material as polyvinyl chloride (PVC), polythene, cross-linked polyethylene, and rubber are wrapped around conductive core to make the electric cable with copper wrapping aluminum conductor. The cable made of copper wrapping aluminum has the same conductivity compared with same size of copper core cable, and in addition, the cable is also light in weight, easy to process, and convenient to use. The utility model can reduce the production cost and save about over 80% copper, and meanwhile avoid such disadvantages as easy oxidization on the surface of aluminum core causing higher resistance, poor corrosion resistance and mechanical capability.

Description

Aluminum core cable and line covered by copper

Technical field

It is conductor wire core with the copper clad aluminum conductor that the utility model relates to a kind of, is the electric wire of insulating material with polyvinyl chloride, polyethylene, crosslinked polyethylene or rubber.

Background technology

Present widely used copper core BLV is as conductor wire core with copper.China is the country of a copper resource shortage, and every year will be from a large amount of copper of external import.As the huge non-ferrous metal of a kind of demand, the copper valency on the international market is constantly soaring, and spot price rises violently 7.3 ten thousand yuan from 4.7 ten thousand yuan per ton of the beginning of the year from the beginning of this year.Economizing on copper and be not only the needs that enterprise reduces cost, also is the problem with national strategy meaning.

Aluminium is the non-ferrous metal that a kind of electric conductivity is only second to copper, and China has very abundant reserves and rich production and processing ability.In the lead of transmission of electricity usefulness, aluminium is used widely as the substitute of copper.Because the price of aluminium is far below copper, and the proportion of aluminium is littler than copper, the conductor wire core length that aluminium is made is more than three times of equivalent weight copper cash.But because the very easy oxidation in surface of aluminium, oxide layer is tougher, cause contact resistance big, and corrosion resistance and mechanical performance particularly intensity all are not so good as copper, and range of application is very limited.

Summary of the invention

It is the electric wire of conductor wire core with the copper clad aluminum conductor that the utility model provides a kind of, is the electric wire of conductor wire core to substitute with copper or aluminium.

The technical solution of the utility model is: aluminum core cable and line covered by copper, it is characterized in that: conductor wire core is that heart is that aluminum steel is surrounded by the cylindric copper sheet of one deck outward, form the conductor wire core of copper clad aluminum conductor, conductor wire core is surrounded by the insulation material layer of polyvinyl chloride or polyethylene or crosslinked polyethylene or rubber outward.

The better technical scheme of the utility model is: conductor wire core is to be parallel to each other or the conductor wire core of the copper clad aluminum conductor more than two or two that twines mutually, and the conductor wire core skin of the copper clad aluminum conductor more than two or two has insulation material layer.Further measure be parallel to each other or the copper clad aluminum conductor more than two or two that twines mutually between insulation material layer is arranged.Be conductor wire core with the copper clad aluminum conductor like this,, insulating material such as polyvinyl chloride, polyethylene, crosslinked polyethylene or rubber be coated on around the conductor wire core, form the insulation of electric wire by traditional expressing technique.Copper clad aluminum conductor is the bimetallic composite conductor that coats one deck uniform thickness copper sheet on the aluminium bar with one heart, by tension and compression, can form the copper-clad aluminum conductor of all size after coating.Copper aluminium border forms stronger melts combine (metallurgical binding), makes lead become as a whole.

Aluminum core cable and line covered by copper of the present utility model, copper-clad aluminum conductor have good conductivity, the intensity height of copper concurrently, and the density of aluminium is little, easily process plurality of advantages, self have again copper layer density evenly, characteristics such as high compactness, high extensibility.The utility model is compared with the prior art scheme, and it is as follows to have effect: one, compare with the copper core cable and line of same specification, the conductivity of aluminum core cable and line covered by copper is identical, and is in light weight, easily processing, easy to use, economize on copper more than 80%, effectively reduce the cost of product; Its two, than good conductivity, the intensity height of aluminum core cable and line, contact resistance is little, good corrosion resistance has wide range of applications.

Description of drawings

Accompanying drawing has been represented aluminum core cable and line covered by copper structural representation of the present utility model, and wherein Fig. 1 is the cross-sectional structure schematic diagram of single core aluminum core cable and line covered by copper, and Fig. 2 is the perspective view of single core aluminum core cable and line covered by copper front end stripping of insulatin material layer.Fig. 3 is the cross-sectional structure schematic diagram of multicore aluminum core cable and line covered by copper, and Fig. 4 is the perspective view of multicore aluminum core cable and line covered by copper front end stripping of insulatin material layer.

Embodiment

Embodiment one, a kind of single core aluminum core cable and line covered by copper of the present utility model (seeing Fig. 1, Fig. 2), conductor wire core is that heart is aluminum steel 6 outer cylindric copper sheet 5 conductor wire cores of one deck that are surrounded by, formed the lead of copper clad aluminum conductor, single conductor wire core is surrounded by the insulation material layer 4 of polyvinyl chloride or polyethylene or crosslinked polyethylene or rubber outward.The production technology of embodiment and ordinary copper core electric wire is identical, promptly by plastic extruding machine insulating material is extruded in around the copper clad aluminum conductor, again through supercooling, after-combustion, lettering and packing, becomes copper-covered aluminum-core electric wire finished product.

Embodiment two, a kind of multicore aluminum core cable and line covered by copper of the present utility model (seeing Fig. 3, Fig. 4), conductor wire core are that heart is to be surrounded by cylindric copper sheet 2 conductor wire cores of one deck outside the aluminum steel 3, have formed the lead of copper clad aluminum conductor; And conductor wire core is to be parallel to each other or the conductor wire core of the copper clad aluminum conductor more than two or two that twines mutually, and the conductor wire core skin of the copper clad aluminum conductor more than two or two has insulation material layer 1.Between the copper clad aluminum conductor more than two or two that is parallel to each other or twines mutually insulation material layer is arranged also.Single conductor wire core is surrounded by the insulation material layer of polyvinyl chloride or polyethylene or crosslinked polyethylene or rubber outward.The production technology of embodiment and ordinary copper core electric wire is identical, promptly by plastic extruding machine insulating material is extruded in around the copper clad aluminum conductor, again through supercooling, after-combustion, lettering and packing, becomes copper-covered aluminum-core electric wire finished product.It is identical with the copper core cable and line of same specification that aluminum core cable and line covered by copper has conductivity, in light weight, easily processing, easy to use, economize on copper more than 80%, effectively reduce product cost, avoided the easy oxidation of aluminum core cable and line conductive surface again, contact resistance is big, the shortcoming of corrosion resistance and bad mechanical property.

Claims

1, a kind of aluminum core cable and line covered by copper, it is characterized in that: conductor wire core is that heart is that aluminum steel is surrounded by the cylindric copper sheet of one deck outward, form the conductor wire core of copper clad aluminum conductor, conductor wire core is surrounded by the insulation material layer of polyvinyl chloride or polyethylene or crosslinked polyethylene or rubber outward.

2, as the said aluminum core cable and line covered by copper of claim 1, it is characterized in that: conductor wire core is to be parallel to each other or the conductor wire core of the copper clad aluminum conductor more than two or two that twines mutually, and the conductor wire core skin of the copper clad aluminum conductor more than two or two has insulation material layer.

3, as the said aluminum core cable and line covered by copper of claim 1, it is characterized in that: be parallel to each other or the copper clad aluminum conductor more than two or two that twines mutually between insulation material layer is arranged.