CN202067570U

CN202067570U - Novel copper clad aluminum busbar

Info

Publication number: CN202067570U
Application number: CN2011200630648U
Authority: CN
Inventors: 邱九根
Original assignee: WUJIANG CITY ZHONGXIN TECHNOLOGY Co Ltd
Current assignee: WUJIANG CITY ZHONGXIN TECHNOLOGY Co Ltd
Priority date: 2011-03-11
Filing date: 2011-03-11
Publication date: 2011-12-07
Anticipated expiration: 2021-03-11

Abstract

The utility model relates to a novel copper clad aluminum busbar. The copper clad aluminum busbar comprises an aluminium tube and a copper tube matched with the aluminium tube, wherein the aluminium tube is placed in the copper tube; the external diameter of the aluminium tube is smaller than the internal diameter of the copper tube; and the aluminium tube is hollow. By adopting the novel copper clad aluminum busbar provided by the utility model, in which the aluminium tube replaces an aluminium core, the hollow aluminium tube is easy to deform and has low probability of irregular deformation after being subjected to an external force, heating the hollow aluminium tube is more power-saving than heating the solid aluminium core, the hollow aluminium tube can be in close combination with the copper tube more easily than the solid aluminium core, and the problems that the copper tube wrapped outside the aluminium core is cracked or fractured at corners because the solid aluminium core is not easy to deform when subjected to the external force and is deformed irregularly, the combination is not tight, the rejection rate is high and the raw material is wasted are solved.

Description

A kind of novel cuprum-cladding-aluminium array

Technical field

The utility model relates to copper clad aluminum wire, and copper clad aluminum wire is a kind of arrangement lead that is used for the big electric current of conducting, particularly relates to a kind of novel cuprum-cladding-aluminium array.

Background technology

Copper clad aluminum wire be a kind of be matrix with aluminium, the outer copper that coats.Aluminium core and copper pipe are removed oxide-film to aluminium core outside and copper pipe inner face, and the aluminium core is pressed in the copper pipe, stretch or rollingly make that solid phase combines between copper pipe and aluminium core, pull into required overall dimension, make between them the bimetallic of metallurgical binding between the permanent atom of formation, surface-brightening, rounding, zero defect.It is the energy cheaply of the high-quality of copper being stablized electric conductivity and aluminium, with lower contact resistance, and the novel conductor material that is combined as a whole.Instead of pure copper bar comprehensively, the copper accounting heavy 40%, the aluminium accounting heavy 60%, under the same size situation fine copper row's 2.5 double-lengths, ampacity is fine copper row's 85%, select bigger a little specification can reach identical ampacity fully, meet line footpath and the mechanics and the electric property specification requirement of client's needs.

But because the aluminium core of prior art is solid, in the time of stretching or rolling copper clad aluminum wire, receive external force and be difficult to produce distortion, and the distortion that produces also is irregular, therefore can cause the copper pipe of aluminium core outer wrapping to produce the crack or break in the corner, and the defective tightness that combines of aluminium core and copper pipe, the percent defective height, the waste raw material, thus production cost increased.

The utility model content

The purpose of this utility model provides a kind of novel cuprum-cladding-aluminium array, and the rate of finished products of copper clad aluminum wire can be provided, and saves material, and reaches the purpose of saving cost.

The technical solution of the utility model: a kind of novel cuprum-cladding-aluminium array, comprise aluminum pipe and the copper pipe that matches with this aluminum pipe, this aluminum pipe places in this copper pipe, and the external diameter of this aluminum pipe is less than the internal diameter of this copper pipe, and this aluminum pipe is a hollow-core construction.

In the utility model, this aluminum pipe places in this copper pipe and the heating-up temperature of the copper clad aluminum wire after stretching is 500-550 ℃.

The beneficial effect that the utlity model has: adopt novel cuprum-cladding-aluminium array described in the utility model, by replacing the aluminium core with aluminum pipe, because aluminum pipe is hollow, easy deformation, and be subjected to be difficult for producing irregular deformation after the external force effect, and heat hollow aluminum pipe than the more power saving of solid aluminum core, hollow aluminum pipe is combined closely with easy and copper pipe than solid aluminum core, the aluminium core is solid, is not easy distortion when receiving external force, and is out of shape irregular, can cause the copper pipe generation crack or the corner of aluminium core outer wrapping to break, and in conjunction with defective tightness, percent defective height, waste raw material.

Description of drawings

Fig. 1 is the section of structure of novel cuprum-cladding-aluminium array described in the utility model.

Embodiment

Further understand and understanding for making architectural feature of the present utility model and the effect reached had,, be described as follows in order to the detailed explanation that matches of preferred embodiment and accompanying drawing:

Fig. 1 is the section of structure of novel cuprum-cladding-aluminium array described in the utility model, as shown in the figure.A kind of novel cuprum-cladding-aluminium array comprises aluminum pipe 1 and the copper pipe 2 that matches with this aluminum pipe, and this aluminum pipe 1 places in this copper pipe 2, and the external diameter of this aluminum pipe 1 is less than the internal diameter of this copper pipe 2, and this aluminum pipe 1 is a hollow-core construction.

Wherein, this aluminum pipe place in this copper pipe and stretch after the heating-up temperature of copper clad aluminum wire be 500-550 ℃.

In the utility model preferred embodiment, the internal diameter that the external diameter of aluminum pipe 1 is slightly less than this copper pipe 2 gets final product.

The manufacturing process of novel cuprum-cladding-aluminium array described in the utility model is:

Step 1: choose copper pipe and aluminum pipe.The wall thickness of copper pipe must be evenly, and aluminum pipe is the hollow-core construction aluminum pipe of specific customization, and its external diameter outline is less than the internal diameter of copper pipe.

Step 2: the inside and outside wall of aluminum pipe and copper pipe is cleaned up, aluminum pipe is inserted in the copper pipe, then it is stretched.

Step 3: the semi-finished product after stretching carry out 500-550 ℃ heat treated earlier, are rolled again.

Step 4: the copper clad aluminum wire that is drawn into required overall dimensions at last.

Step 5: can obtain finished product after copper clad aluminum wire annealed, polishes.

Hence one can see that, adopt novel cuprum-cladding-aluminium array described in the utility model, by replacing the aluminium core with aluminum pipe, because aluminum pipe is hollow, easy deformation, and be subjected to be difficult for producing irregular deformation after the external force effect, and heat hollow aluminum pipe than the more power saving of solid aluminum core, hollow aluminum pipe is combined closely with easy and copper pipe than solid aluminum core, and the aluminium core is solid, when receiving external force, be not easy distortion, and be out of shape irregularly, can cause the copper pipe of aluminium core outer wrapping to produce the crack or break in the corner, and in conjunction with defective tightness, the percent defective height, the waste raw material.

Therefore, it is shorter that the utility model uses hollow aluminum pipe to improve the rate of finished products of copper clad aluminum wire, raw material, its heating aluminum pipe time more required than heating aluminium core of having saved, thereby saved electric power energy, reduced production cost, thereby created better benefit for enterprise.

In sum, it only is preferred embodiment of the present utility model, be not to be used for limiting the scope that the utility model is implemented, all equalizations of doing according to the described shape of the utility model claim scope, structure, feature and spirit change and modify, and all should be included in the claim scope of the present utility model.

Claims

1. a novel cuprum-cladding-aluminium array is characterized in that, comprises aluminum pipe and the copper pipe that matches with this aluminum pipe, and this aluminum pipe places in this copper pipe, and the external diameter of this aluminum pipe is less than the internal diameter of this copper pipe, and this aluminum pipe is a hollow-core construction.

2. novel cuprum-cladding-aluminium array according to claim 1 is characterized in that, this aluminum pipe places in this copper pipe and the heating-up temperature of the copper clad aluminum wire after stretching is 500-550 ℃.