CN201626973U

CN201626973U - Inductor for anneal of copper-coated aluminum wire cold pressing welding joint

Info

Publication number: CN201626973U
Application number: CN2009202921886U
Authority: CN
Inventors: 戴雅康
Original assignee: Dalian TTOFF New Material Development Co Ltd
Current assignee: DALIAN TONGFA COMPOSITE CABLE SCIENCE & TECHNOLOGY DEVELOPMENT CO., LTD.
Priority date: 2009-12-29
Filing date: 2009-12-29
Publication date: 2010-11-10
Anticipated expiration: 2019-12-29

Abstract

A inductor for the anneal of copper-coated aluminum wire cold pressing welding joint comprises a tube body, wherein the two ends of the tube body are connected with plugs matched with the sockets of an intermediate frequency induction heating device; the plug is connected with a water nozzle joint connected with a cooling water device; the tube body is bent into an upper and lower layer structure, a gap is left between the upper layer and the lower layer, and an opening is left on the side thereof. When in use, the tube body is connected on the intermediate frequency induction heating device, so the copper-coated aluminum wire with the cold pressing welding joint can be placed in the gap between the upper layer and the lower layer from the opening of the inductor; the aluminum exposed position of the joint of the copper-coated aluminum wire is coated with resin paint, the heating temperature is 270 DEG C to 300 DEG C, the time is 1 to 2 minutes, so the paint can be dried and coated the joint, in this way, not only the problem of aluminum exposed on the joint is solved, but also the wire is annealed, thus eliminating the phenomenon of work hardening. The utility model is time-and-labor-saving and reduces the manufacturing cost of the product; and when treating the cold pressing welding joint, in order to prevent the joint from being oxidized, argon can be blown to the cold pressing welding joint and served as protective gas.

Description

Be used for copper-clad aluminum conductor cold pressure welding joint annealed inductor block

Technical field

The utility model relates to a kind of annealing device of metallic substance, particularly a kind of copper-clad aluminum conductor cold pressure welding joint annealed inductor block that is used for.

Background technology

Inner outside for the copper cover aluminum wire rod of copper layer has been widely used for aluminum steel, twining in the dish process of production copper-clad aluminum conductor, the wire rod that often needs to disconnect couples together.All be to adopt the Cold welding method crimp to be connected at present by the butt joint metallographic phase.

This method of attachment has two shortcomings: the first is in the extrusion process of butt joint metal, and the aluminium of core can be extruded the surface, forms overlap.Overlap is removed the back shank expose a circle aluminium, its width is about 0.5mm～1mm.A circle aluminium that exposes closely links to each other with the copper layer of both sides, just produces galvanic corrosion and joint is destroyed under ambient conditions necessarily.It two is that metal produces the work hardening phenomenon in extrusion process, and the hardness of shank is greatly improved, and influences the use properties of copper-clad aluminum conductor.

The electro-coppering processing is partly carried out in butt junction aborning at present, and dew aluminium place is covered with copper; Also want butt junction partly to carry out spot anneling simultaneously and handle, to eliminate the work hardening phenomenon.Because electroplating work procedure is more, consuming time longer, need 30 minutes～40 minutes approximately, anneal also can't be carried out simultaneously with copper facing, therefore wastes time and energy, and production efficiency is low, and labour intensity is big, causes the product cost height.

Summary of the invention

The purpose of this utility model provides a kind of simple in structure, easy to operate, time saving and energy saving copper-clad aluminum conductor cold pressure welding joint annealed inductor block that is used for, and reveals aluminium and work hardening phenomenon to handle the wire connections place, overcomes the deficiencies in the prior art.

The copper-clad aluminum conductor cold pressure welding joint annealed inductor block that is used for of the present utility model, comprise body, the two ends of body be connected to Intermediate Frequency Induction Heating Equipment on the plug that matches of socket, plug is connected with the water fittings that links to each other with chilled water unit, body is bent into upper and lower double-layer structure, gapped in the middle of upper strata and lower floor, and side edge leaves opening.

The copper-clad aluminum conductor cold pressure welding joint annealed inductor block that is used for of the present utility model, wherein said body is the red copper square tube.

The copper-clad aluminum conductor cold pressure welding joint annealed inductor block that is used for of the present utility model, the endoporus of wherein said plug is provided with internal thread, and the termination of described water fittings is provided with outside screw, and water fittings is fixedlyed connected by screw thread with plug.

The copper-clad aluminum conductor cold pressure welding joint annealed inductor block that is used for of the present utility model can be inserted in the plug at body two ends during use on the socket on the Intermediate Frequency Induction Heating Equipment, provides alternating-current by Intermediate Frequency Induction Heating Equipment for this inductor block, makes it to produce heat; The opening part that will have the copper cover aluminum wire rod self-inductor of cold pressure welding joint is simultaneously put into the gap between upper strata and the lower floor, joint dew aluminium place at the copper cover aluminum wire rod scribbles resin type coating, heating and temperature control is at 270 ℃～300 ℃, time was controlled at 1～2 minute, by heating, the outside surface of joint is done admittedly and be coated on to coating rapidly, both handled the dew aluminium problem of joint, make wire annealing again, eliminated the work hardening phenomenon.Time saving and energy saving, alleviated labour intensity, improved operating efficiency, reduced the tooling cost of product.When handling the cold pressure welding joint,, can be blown into argon gas as shielding gas to cold pressure welding joint place in order to prevent its oxidation.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the plug of pipe end and the structural representation of water fittings;

Fig. 3 is user mode figure of the present utility model;

Fig. 4 is an A-A section rotation enlarged diagram shown in Figure 1.

Embodiment

Shown in Fig. 1,2,3,4: 1 is a body of forming inductor block, selects for use copper tube to make, and by the moulding of reciprocal inflection mode, body 1 is bent into upper and lower double-layer structure, gapped 9 in upper strata and lower floor centre, and side edge leaves opening 10.

The two ends of body 1 is welded with plug 3, is connected with the retaining platform 2 of integrative-structure on the termination of plug 3.13 is Intermediate Frequency Induction Heating Equipment, and the socket 12 on plug 3 and the Intermediate Frequency Induction Heating Equipment 13 matches.

Plug 3 is connected with the water fittings 4 that links to each other with apparatus for supplying cool water, and its syndeton is: the endoporus of plug 3 is processed with internal thread, and the end machining of water fittings 4 has outside screw, and water fittings 4 and plug 3 are fixedlyed connected by screw thread.In order to have the better seal effect, between water fittings 4 and plug 3, be provided with gasket 11.

The inner chamber of the endoporus of the endoporus of water fittings 4, plug 3 and body 1 is interconnected.

In order to have induction heating effect preferably, body 1 can select for use the red copper square tube to make, and also can utilize the red copper pipe to knock the formation square tube type gently on platform, guarantees that close of the upper and lower two-layer body of middle portion is parallel plane.

As shown in Figure 3: 8 is copper-clad aluminum conductor, form by the aluminum steel 7 of inboard and the copper layer 6 in the outside, 5 is the cold pressure welding joint of copper-clad aluminum conductor, scribbles resin type coating at cold pressure welding joint 5 outside surfaces that expose aluminium, utilizes this inductor block that the cold pressure welding joint is carried out the solid and anneal of resin dry then.Two plugs 3 of this inductor block are inserted on the socket 12 on the Intermediate Frequency Induction Heating Equipment 13, for body 1 provides alternating-current, make its induction heating by Intermediate Frequency Induction Heating Equipment 13.Water fittings 4 is connected with apparatus for supplying cool water by water pipe, valve, when promptly inductor block provides thermal source, is inductor block self cooling by water coolant.The opening 10 of copper-clad aluminum conductor 8 self-inductor sides is sent into, made in the gap 9 of cold pressure welding joint 5 between inductor block upper strata body and lower floor's body on the copper cover aluminum wire rod 8, the heat that utilizes inductor block to produce heats it.Heating and temperature control is at 270 ℃～300 ℃, and the time was controlled at 1～2 minute.Make resin type coating do solid appearance by heating, covered dew aluminium surface, also cold pressure welding joint 5 has been carried out anneal simultaneously, eliminated the work hardening phenomenon at cold pressure welding joint 5.Both sides at inductor block can be provided with the bracing frame that copper-clad aluminum conductor is played a supporting role, and prevent from that copper-clad aluminum conductor from taking to drop on to make it stressed on the inductor block.

When handling cold pressure welding joint 5; in order to prevent its oxidation; can above inductor block, be provided with an argon gas nozzle 14; argon gas nozzle 14 joins with argon bottle 17 by pipeline, valve 15; be connected to tensimeter 16 in the exit of argon bottle 17 and be used to observe argon pressure; when handling cold pressure welding joint 5 being blown into of argon gas arranged, played the better protecting effect, prevented oxidation.

Claims

1. one kind is used for copper-clad aluminum conductor cold pressure welding joint annealed inductor block, it is characterized in that: comprise body (1), the two ends of body (1) be connected to Intermediate Frequency Induction Heating Equipment (13) on the plug (3) that matches of socket (12), plug (3) is connected with the water fittings (4) that links to each other with chilled water unit, body (1) is bent into upper and lower double-layer structure, in the middle of upper strata and lower floor gapped (9), and side edge leaves opening (10).

2. the copper-clad aluminum conductor cold pressure welding joint annealed inductor block that is used for according to claim 1 is characterized in that: described body (1) is the red copper square tube.

3. the copper-clad aluminum conductor cold pressure welding joint annealed inductor block that is used for according to claim 1 and 2, it is characterized in that: the endoporus of described plug (3) is provided with internal thread, the termination of described water fittings (4) is provided with outside screw, and water fittings (4) is fixedlyed connected by screw thread with plug (3).